122 results on '"Brigitta Buttari"'
Search Results
2. Sex Differences Affect the NRF2 Signaling Pathway in the Early Phase of Liver Steatosis: A High-Fat-Diet-Fed Rat Model Supplemented with Liquid Fructose
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Benedetta Di Veroli, Roger Bentanachs, Núria Roglans, Marta Alegret, Letizia Giona, Elisabetta Profumo, Alessandra Berry, Luciano Saso, Juan Carlos Laguna, and Brigitta Buttari
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liver steatosis ,fructose ,high-fat diet ,NRF2 ,KEAP1 ,antioxidants ,Cytology ,QH573-671 - Abstract
Sex differences may play a role in the etiopathogenesis and severity of metabolic dysfunction-associated steatotic liver disease (MASLD), a disorder characterized by excessive fat accumulation associated with increased inflammation and oxidative stress. We previously observed the development of steatosis specifically in female rats fed a high-fat diet enriched with liquid fructose (HFHFr) for 12 weeks. The aim of this study was to better characterize the observed sex differences by focusing on the antioxidant and cytoprotective pathways related to the KEAP1/NRF2 axis. The KEAP1/NRF2 signaling pathway, autophagy process (LC3B and LAMP2), and endoplasmic reticulum stress response (XBP1) were analyzed in liver homogenates in male and female rats that were fed a 12-week HFHFr diet. In females, the HFHFr diet resulted in the initial activation of the KEAP1/NRF2 pathway, which was not followed by the modulation of downstream molecular targets; this was possibly due to the increase in KEAP1 levels preventing the nuclear translocation of NRF2 despite its cytosolic increase. Interestingly, while in both sexes the HFHFr diet resulted in an increase in the levels of LC3BII/LC3BI, a marker of autophagosome formation, only males showed a significant upregulation of LAMP2 and XBP1s; this did not occur in females, suggesting impaired autophagic flux in this sex. Overall, our results suggest that males are characterized by a greater ability to cope with an HFHFr metabolic stimulus mainly through an autophagic-mediated proteostatic process while in females, this is impaired. This might depend at least in part upon the fine modulation of the cytoprotective and antioxidant KEAP1/NRF2 pathway resulting in sex differences in the occurrence and severity of MASLD. These results should be considered to design effective therapeutics for MASLD.
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- 2024
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3. A Review of the Potential of Nuclear Factor [Erythroid-Derived 2]-like 2 Activation in Autoimmune Diseases
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Ilker Ates, Ayşe Didem Yılmaz, Brigitta Buttari, Marzia Arese, Luciano Saso, and Sibel Suzen
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Nrf2 activation ,autoimmune diseases ,inflammation ,autoimmunity ,immunoregulatory ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
An autoimmune disease is the consequence of the immune system attacking healthy cells, tissues, and organs by mistake instead of protecting them. Inflammation and oxidative stress (OS) are well-recognized processes occurring in association with acute or chronic impairment of cell homeostasis. The transcription factor Nrf2 (nuclear factor [erythroid-derived 2]-like 2) is of major importance as the defense instrument against OS and alters anti-inflammatory activities related to different pathological states. Researchers have described Nrf2 as a significant regulator of innate immunity. Growing indications suggest that the Nrf2 signaling pathway is deregulated in numerous diseases, including autoimmune disorders. The advantageous outcome of the pharmacological activation of Nrf2 is an essential part of Nrf2-based chemoprevention and intervention in other chronic illnesses, such as neurodegeneration, cardiovascular disease, autoimmune diseases, and chronic kidney and liver disease. Nevertheless, a growing number of investigations have indicated that Nrf2 is already elevated in specific cancer and disease steps, suggesting that the pharmacological agents developed to mitigate the potentially destructive or transformative results associated with the protracted activation of Nrf2 should also be evaluated. The activators of Nrf2 have revealed an improvement in the progress of OS-associated diseases, resulting in immunoregulatory and anti-inflammatory activities; by contrast, the depletion of Nrf2 worsens disease progression. These data strengthen the growing attention to the biological properties of Nrf2 and its possible healing power on diseases. The evidence supporting a correlation between Nrf2 signaling and the most common autoimmune diseases is reviewed here. We focus on the aspects related to the possible effect of Nrf2 activation in ameliorating pathologic conditions based on the role of this regulator of antioxidant genes in the control of inflammation and OS, which are processes related to the progression of autoimmune diseases. Finally, the possibility of Nrf2 activation as a new drug development strategy to target pathogenesis is proposed.
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- 2023
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4. Hemorheological profiles and chronic inflammation markers in transfusion-dependent and non-transfusion- dependent thalassemia
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Patrizia Caprari, Elisabetta Profumo, Sara Massimi, Brigitta Buttari, Rachele Riganò, Vincenza Regine, Marco Gabbianelli, Stefania Rossi, Roberta Risoluti, Stefano Materazzi, Giuseppina Gullifa, Laura Maffei, and Francesco Sorrentino
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thalassemia major ,thalassemia intermedia ,hemorheology ,blood viscosity ,endothelium ,cytokines ,Biology (General) ,QH301-705.5 - Abstract
The rheological properties of blood play an important role in regulating blood flow in micro and macro circulation. In thalassemia syndromes red blood cells exhibit altered hemodynamic properties that facilitate microcirculatory diseases: increased aggregation and reduced deformability, as well as a marked increase in adherence to the vascular endothelial cells. A personalized approach to treating thalassemia patients (transfusions, iron chelation, and splenectomy), has increased patients’ life expectancy, however they generally present many complications and several studies have demonstrated the presence of high incidence of thromboembolic events. In this study the hemorheological profiles of thalassemia patients have been characterized to point out new indices of vascular impairment in thalassemia. Plasma viscosity, blood viscosities at low and high shear rates (η1 and η200, respectively), erythrocyte aggregation index (η1/η200), and the erythrocyte viscoelastic profile (elastic modulus G', and viscous modulus G") have been studied in transfusion-dependent and non-transfusion-dependent thalassemia patients. Moreover, the levels of inflammation biomarkers in thalassemia have been evaluated to investigate a relationship between the biomarkers, the disease severity and the rheological parameters. The biomarkers studied are the main components of the immune and endothelial systems or are related to vascular inflammation: cytokines (IL-2, IL-6, IL-10, IL-17A, TNF-alpha), chemokines (IL-8, MIP-1alpha), adipocytokines (leptin and adiponectin), growth factors (VEGF, angiopoietin-1), adhesion molecules (ICAM-1, VCAM-1, E-selectin, L-selectin), and a monocyte/macrophage activation marker (CD163). This study shows that transfusion-dependent thalassemia patients, both major and intermedia, have blood viscosities comparable to those of healthy subjects. Non-transfusion-dependent thalassemia intermedia patients show high blood viscosities at low shear rates (η1), corresponding to the flow conditions of the microcirculation, an increase in erythrocyte aggregation, and high values of the elastic G' and viscous G" modules that reflect a reduced erythrocyte deformability and an increase in blood viscosity. Levels of cytokines, chemokines and adhesion molecules are different in transfusion- and non-transfusion dependent patients and positive correlations between η1 or η1/η200 and the cytokines IL-6 and IL-10 have been observed. The evaluation of the hemorheological profiles in thalassemia can provide new indicators of vascular impairment and disease severity in thalassemia in order to prevent the onset of thromboembolic events.
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- 2023
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5. Trends of blood pressure, raised blood pressure, hypertension and its control among Italian adults: CUORE Project cross-sectional health examination surveys 1998/2008/2018
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Graziano Onder, Luigi Palmieri, Michele Massimo Gulizia, Chiara Donfrancesco, Anna Di Lonardo, Cinzia Lo Noce, Brigitta Buttari, Elisabetta Profumo, Francesca Vespasiano, Serena Vannucchi, Ferruccio Galletti, Daniela Galeone, and Paolo Bellisario
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Medicine - Abstract
Objectives To assess in the Italian general adult population the trends of blood pressure (BP) and prevalence of raised BP (RBP), hypertension and its control in order to evaluate population health and care, and the achievement of an RBP 25% relative reduction as recommended by the WHO at population level.Design Results comparison of health examination surveys, cross-sectional observational studies based on health examination of randomly selected age and sex stratified samples including residents aged 35–74 years. Data of the 2018/2019 survey were compared with the previous ones collected in 1998/2002 and 2008/2012.Setting Health examination surveys conducted in Italy within the CUORE Project following standardised methodologies.Participants 2985 men and 2955 women examined in 1998/2002, 2218 men and 2204 women examined in 2008/2012 and 1031 men and 1066 women examined in 2018/2019.Primary and secondary outcome measures Age-standardised mean of BP, prevalence of RBP (systolic BP and/or diastolic BP ≥140/90 mm Hg), hypertension (presenting or being treated for RBP) and its awareness and control, according to sex, age class and educational level.Results In 2018/2019, a significant reduction was observed in systolic BP and diastolic BP in men (1998/2002: 136/86 mm Hg; 2008/2012: 132/84 mm Hg; and 2018/2019: 132/78 mm Hg) and women (132/82 mm Hg, 126/78 mm Hg and 122/73 mm Hg), and in the prevalence of RBP (50%, 40% and 30% in men and 39%, 25% and 16% in women) and of hypertension (54%, 49% and 44% in men and 45%, 35% and 32% in women). Trends were consistent by age and education attainment. In 2018/2019, hypertensive men and women with controlled BP were only 27% and 41%, but a significant favourable trend was observed.Conclusions Data from 2018/2019 underlined that RBP is still commonly observed in the Italian population aged 35–74 years, however, the WHO RBP target at that time may be considered met.
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- 2022
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6. Oxidative Stress as a Regulatory Checkpoint in the Production of Antiphospholipid Autoantibodies: The Protective Role of NRF2 Pathway
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Maurizio Sorice, Elisabetta Profumo, Antonella Capozzi, Serena Recalchi, Gloria Riitano, Benedetta Di Veroli, Luciano Saso, and Brigitta Buttari
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oxidative stress ,antiphospholipid autoantibody ,food supplements ,Microbiology ,QR1-502 - Abstract
Oxidative stress is a well-known hallmark of Antiphospholipid Antibody Syndrome (APS), a systemic autoimmune disease characterized by arterial and venous thrombosis and/or pregnancy morbidity. Oxidative stress may affect various signaling pathways and biological processes, promoting dysfunctional immune responses and inflammation, inducing apoptosis, deregulating autophagy and impairing mitochondrial function. The chronic oxidative stress and the dysregulation of the immune system leads to the loss of tolerance, which drives autoantibody production and inflammation with the development of endothelial dysfunction. In particular, anti-phospholipid antibodies (aPL), which target phospholipids and/or phospholipid binding proteins, mainly β-glycoprotein I (β-GPI), play a functional role in the cell signal transduction pathway(s), thus contributing to oxidative stress and thrombotic events. An oxidation–antioxidant imbalance may be detected in the blood of patients with APS as a reflection of disease progression. This review focuses on functional evidence highlighting the role of oxidative stress in the initiation and progression of APS. The protective role of food supplements and Nuclear Factor Erythroid 2-Related Factor 2 (NRF2) activators in APS patients will be summarized to point out the potential of these therapeutic approaches to reduce APS-related clinical complications.
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- 2023
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7. NRF2: A crucial regulator for mitochondrial metabolic shift and prostate cancer progression
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Brigitta Buttari, Marzia Arese, Rebecca E. Oberley-Deegan, Luciano Saso, and Arpita Chatterjee
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prostate cancer ,metabolism ,Nrf2 ,therapy resistance ,oxidative stress ,cancer progression ,Physiology ,QP1-981 - Abstract
Metabolic alterations are a common survival mechanism for prostate cancer progression and therapy resistance. Oxidative stress in the cellular and tumor microenvironment dictates metabolic switching in the cancer cells to adopt, prosper and escape therapeutic stress. Therefore, regulation of oxidative stress in tumor cells and in the tumor-microenvironment may enhance the action of conventional anticancer therapies. NRF2 is the master regulator for oxidative stress management. However, the overall oxidative stress varies with PCa clinical stage, metabolic state and therapy used for the cancer. In agreement, the blanket use of NRF2 inducers or inhibitors along with anticancer therapies cause adverse effects in some preclinical cancer models. In this review, we have summarized the levels of oxidative stress, metabolic preferences and NRF2 activity in the different stages of prostate cancer. We also propose condition specific ways to use NRF2 inducers or inhibitors along with conventional prostate cancer therapies. The significance of this review is not only to provide a detailed understanding of the mechanism of action of NRF2 to regulate oxidative stress-mediated metabolic switching by prostate cancer cells to escape the radiation, chemo, or hormonal therapies, and to grow aggressively, but also to provide a potential therapeutic method to control aggressive prostate cancer growth by stage specific proper use of NRF2 regulators.
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- 2022
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8. Infection Meets Inflammation: N6-Methyladenosine, an Internal Messenger RNA Modification as a Tool for Pharmacological Regulation of Host–Pathogen Interactions
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Milena N. Leseva, Brigitta Buttari, Luciano Saso, and Petya A. Dimitrova
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epitranscriptome ,N6-methyladenosine ,m6A ,host–pathogen interactions ,immune cells ,infectious disease ,Microbiology ,QR1-502 - Abstract
The significance of internal mRNA modifications for the modulation of transcript stability, for regulation of nuclear export and translation efficiency, and their role in suppressing innate immunity is well documented. Over the years, the molecular complexes involved in the dynamic regulation of the most prevalent modifications have been characterized—we have a growing understanding of how each modification is set and erased, where it is placed, and in response to what cues. Remarkably, internal mRNA modifications, such as methylation, are emerging as an additional layer of regulation of immune cell homeostasis, differentiation, and function. A fascinating recent development is the investigation into the internal modifications of host/pathogen RNA, specifically N6-methyladenosine (m6A), its abundance and distribution during infection, and its role in disease pathogenesis and in shaping host immune responses. Low molecular weight compounds that target RNA-modifying enzymes have shown promising results in vitro and in animal models of different cancers and are expanding the tool-box in immuno-oncology. Excitingly, such modulators of host mRNA methyltransferase or demethylase activity hold profound implications for the development of new broad-spectrum therapeutic agents for infectious diseases as well. This review describes the newly uncovered role of internal mRNA modification in infection and in shaping the function of the immune system in response to invading pathogens. We will also discuss its potential as a therapeutic target and identify pitfalls that need to be overcome if it is to be effectively leveraged against infectious agents.
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- 2023
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9. Alkaloids as Natural NRF2 Inhibitors: Chemoprevention and Cytotoxic Action in Cancer
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Darinka Gjorgieva Ackova, Viktorija Maksimova, Katarina Smilkov, Brigitta Buttari, Marzia Arese, and Luciano Saso
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NRF2 inhibitors ,alkaloids ,plant bioactive compound ,cancer ,chemoprevention ,anticancer therapy ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
Being a controller of cytoprotective actions, inflammation, and mitochondrial function through participating in the regulation of multiple genes in response to stress-inducing endogenous or exogenous stressors, the transcription factor Nuclear Factor Erythroid 2-Related Factor 2 (NRF2) is considered the main cellular defense mechanism to maintain redox balance at cellular and tissue level. While a transient activation of NRF2 protects normal cells under oxidative stress, the hyperactivation of NRF2 in cancer cells may help them to survive and to adapt under oxidative stress. This can be detrimental and related to cancer progression and chemotherapy resistance. Therefore, inhibition of NRF2 activity may be an effective approach for sensitizing cancer cells to anticancer therapy. In this review, we examine alkaloids as NRF2 inhibitors from natural origin, their effects on cancer therapy, and/or as sensitizers of cancer cells to anticancer chemotherapeutics, and their potential clinical applications. Alkaloids, as inhibitor of the NRF2/KEAP1 signaling pathway, can have direct (berberine, evodiamine, and diterpenic aconitine types of alkaloids) or indirect (trigonelline) therapeutic/preventive effects. The network linking alkaloid action with oxidative stress and NRF2 modulation may result in an increased NRF2 synthesis, nuclear translocation, as well in a downstream impact on the synthesis of endogenous antioxidants, effects strongly presumed to be the mechanism of action of alkaloids in inducing cancer cell death or promoting sensitivity of cancer cells to chemotherapeutic agents. In this regard, the identification of additional alkaloids targeting the NRF2 pathway is desirable and the information arising from clinical trials will reveal the potential of these compounds as a promising target for anticancer therapy.
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- 2023
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10. A Perspective on Nrf2 Signaling Pathway for Neuroinflammation: A Potential Therapeutic Target in Alzheimer's and Parkinson's Diseases
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Sarmistha Saha, Brigitta Buttari, Elisabetta Profumo, Paolo Tucci, and Luciano Saso
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Alzheimer's disease ,Parkinson's disease ,Nrf2 signaling pathway ,neuroinflammation ,oxidative stress ,Keap1 ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Neuroinflammation plays a pivotal role in Alzheimer's disease (AD) and Parkinson's disease (PD), the leading causes of dementia. These neurological disorders are characterized by the accumulation of misfolded proteins such as amyloid-ß (Aß), tau protein and α-synuclein, contributing to mitochondrial fragmentation, oxidative stress, and neuroinflammation. Misfolded proteins activate microglia, which induces neuroinflammation, expression of pro-inflammatory cytokines and subsequently facilitates synaptic damage and neuronal loss. So far, all the proposed drugs were based on the inhibition of protein aggregation and were failed in clinical trials. Therefore, the treatment options of dementia are still a challenging issue. Thus, it is worthwhile to study alternative therapeutic strategies. In this context, there is increasing data on the pivotal role of transcription factor NF- E2 p45-related factor 2 (Nrf2) on the redox homeostasis and anti-inflammatory functions in neurodegenerative disorders. Interestingly, Nrf2 signaling pathway has shown upregulation of antioxidant genes, inhibition of microglia-mediated inflammation, and improved mitochondrial function in neurodegenerative diseases, suggesting Nrf2 activation could be a novel therapeutic approach to target pathogenesis. The present review will examine the correlation between Nrf2 signaling with neuroinflammation in AD and PD.
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- 2022
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11. Trends of overweight, obesity and anthropometric measurements among the adult population in Italy: The CUORE Project health examination surveys 1998, 2008, and 2018
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Chiara Donfrancesco, Elisabetta Profumo, Cinzia Lo Noce, Daniela Minutoli, Anna Di Lonardo, Brigitta Buttari, Francesca Vespasiano, Serena Vannucchi, Ferruccio Galletti, Graziano Onder, Furio Colivicchi, Daniela Galeone, Paolo Bellisario, and Luigi Palmieri
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Medicine ,Science - Abstract
Background/Objectives Obesity is associated with an increased risk of noncommunicable diseases, such as diabetes, coronary heart disease, stroke, cancers, and conditions, including obstructive sleep apnea and osteoarthritis. Obesity is largely preventable, and halting its rise is one of the World Health Organization Global Action Plan for the Prevention of Noncommunicable Diseases targets. This study aimed to assess trends of anthropometric measurements in Italy using the data collected within the CUORE Project health examination surveys (HESs) 1998, 2008, and 2018. Subjects/Methods Within the HESs 1998–2002, 2008–2012, and 2018–2019, anthropometric measurements were collected in random samples of the resident population aged 35–74 years, stratified by age and sex, from 10 Italian Regions in Northern, Central, and Southern Italy (2984 men and 2944 women, 2224 men and 2188 women, 1035 men and 1065 women, respectively). Weight, height, and waist and hip circumferences were measured using standardized methodologies. A standardized questionnaire was used to collect data on education. Indicators were age standardized. Results For both men and women, mean body mass index in 2018 was comparable with those in 1998 and 2008 (in 1998, 2008, and 2018—men: 26.7, 27.5, and 27.0 kg/m2; women: 26.2, 26.6, and 26.3 kg/m2). In 1998, 2008, 2018 prevalence of overweight resulted 49%, 47%, 46% in men and 33%, 32%, 28% in women respectively; prevalence of obesity resulted 17%, 24% 20% in men and 19%, 23%, 23% in women respectively. All indicators of excess weight worsen with increasing age and are more severe in persons with a lower educational level. Conclusions Although the overall trend of excess weight over the past two decades appeared to be substantially stable in the Italian adult population, the continuous strengthening of undertaken initiatives should continue since there remains a high proportion of overweight or obesity and a gap between educational levels.
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- 2022
12. Nitro-Oxidative Stress and Mitochondrial Dysfunction in Human Cell Lines Exposed to the Environmental Contaminants PFOA and BPA
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Maria Chiara Magnifico, Marla Xhani, Benedetta Sprovera, Brigitta Buttari, Giorgia Abballe, Flaminia Desideri, Emiliano Panieri, Luciano Saso, and Marzia Arese
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emerging contaminants ,endocrine disruptors ,nitric oxide signaling ,nitro-oxidative stress ,mitochondrial dysfunction ,Biochemistry ,QD415-436 ,Biology (General) ,QH301-705.5 - Abstract
Background: Bisphenol A (BPA) and perfluorooctanoic acid (PFOA) are synthetic compounds widely utilized in industrial activities devoted to the production of daily life plastic, metal products, and packaging from which they are able to migrate to food and water. Due to their persistence in the environment, living organisms are chronically exposed to these pollutants. BPA and PFOA have adverse effects on tissues and organs. The aim of this study was to identify the molecular targets and biochemical mechanisms involved in their toxicity. Methods: HepG2 and HaCaT cells were treated with BPA or PFOA, and the trypan blue exclusion test and 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay were performed to define the conditions for subsequent investigations. We conducted quantitative PCR and western blot analysis to evaluate the expression of proteins involved in nitric oxide (NO) signaling. Cell-based assays were carried out to evaluate reactive oxygen species (ROS) production, nitrite/nitrate (NOx) accumulation, 3-nitrotyrosine (3-NT) formation, and mitochondrial membrane potential (MMP) determination in treated cells. Results: HepG2 and HaCaT cells incubated for 24 h with subtoxic concentrations of BPA or PFOA (50 and 10 μM, respectively) exhibited altered mRNA and protein expression levels of NO synthase isoforms, manganese superoxide dismutase, and cytochrome c. Treatment with PFOA led to activation of inducible NO synthase (NOS), a marker of nitrosative stress, accompanied by the increased production of ROS, NOx, and 3-NT and alterations of the MMP compared to controls. Conclusions: The results of this study indicate the major involvement of the NO signaling axis in the persistent alteration of cell redox homeostasis and mitochondrial dysfunction induced by BPA and PFOA, highlighting the specific role of PFOA in NOS regulation and induction of nitro-oxidative stress.
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- 2022
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13. A Pivotal Role of Nrf2 in Neurodegenerative Disorders: A New Way for Therapeutic Strategies
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Sibel Suzen, Paolo Tucci, Elisabetta Profumo, Brigitta Buttari, and Luciano Saso
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Alzheimer’s disease ,Huntington’s disease ,Parkinson’s disease ,ALS ,Nrf2 ,oxidative stress ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
Clinical and preclinical research indicates that neurodegenerative diseases are characterized by excess levels of oxidative stress (OS) biomarkers and by lower levels of antioxidant protection in the brain and peripheral tissues. Dysregulations in the oxidant/antioxidant balance are known to be a major factor in the pathogenesis of neurodegenerative diseases and involve mitochondrial dysfunction, protein misfolding, and neuroinflammation, all events that lead to the proteostatic collapse of neuronal cells and their loss. Nuclear factor-E2-related factor 2 (Nrf2) is a short-lived protein that works as a transcription factor and is related to the expression of many cytoprotective genes involved in xenobiotic metabolism and antioxidant responses. A major emerging function of Nrf2 from studies over the past decade is its role in resistance to OS. Nrf2 is a key regulator of OS defense and research supports a protective and defending role of Nrf2 against neurodegenerative conditions. This review describes the influence of Nrf2 on OS and in what way Nrf2 regulates antioxidant defense for neurodegenerative conditions. Furthermore, we evaluate recent research and evidence for a beneficial and potential role of specific Nrf2 activator compounds as therapeutic agents.
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- 2022
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14. Antioxidant Cardioprotection against Reperfusion Injury: Potential Therapeutic Roles of Resveratrol and Quercetin
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Ramón Rodrigo, Catalina Retamal, Denisse Schupper, Diego Vergara-Hernández, Sarmistha Saha, Elisabetta Profumo, Brigitta Buttari, and Luciano Saso
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oxidative stress ,reperfusion injury ,antioxidants ,resveratrol ,quercetin ,cardioprotection ,Organic chemistry ,QD241-441 - Abstract
Ischemia-reperfusion myocardial damage is a paradoxical tissue injury occurring during percutaneous coronary intervention (PCI) in acute myocardial infarction (AMI) patients. Although this damage could account for up to 50% of the final infarct size, there has been no available pharmacological treatment until now. Oxidative stress contributes to the underlying production mechanism, exerting the most marked injury during the early onset of reperfusion. So far, antioxidants have been shown to protect the AMI patients undergoing PCI to mitigate these detrimental effects; however, no clinical trials to date have shown any significant infarct size reduction. Therefore, it is worthwhile to consider multitarget antioxidant therapies targeting multifactorial AMI. Indeed, this clinical setting involves injurious effects derived from oxygen deprivation, intracellular pH changes and increased concentration of cytosolic Ca2+ and reactive oxygen species, among others. Thus, we will review a brief overview of the pathological cascades involved in ischemia-reperfusion injury and the potential therapeutic effects based on preclinical studies involving a combination of antioxidants, with particular reference to resveratrol and quercetin, which could contribute to cardioprotection against ischemia-reperfusion injury in myocardial tissue. We will also highlight the upcoming perspectives of these antioxidants for designing future studies.
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- 2022
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15. Oxidative Stress and Cancer Heterogeneity Orchestrate NRF2 Roles Relevant for Therapy Response
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Koraljka Gall Trošelj, Marko Tomljanović, Morana Jaganjac, Tanja Matijević Glavan, Ana Čipak Gašparović, Lidija Milković, Suzana Borović Šunjić, Brigitta Buttari, Elisabetta Profumo, Sarmistha Saha, Luciano Saso, and Neven Žarković
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4-hydroxynonenal ,therapy resistance ,cancer stem cells ,tumor associated macrophages (TAMs) ,tumor associated neutrophils (TANs) ,polarization ,Organic chemistry ,QD241-441 - Abstract
Oxidative stress and its end-products, such as 4-hydroxynonenal (HNE), initiate activation of the Nuclear Factor Erythroid 2-Related Factor 2 (NRF2)/Kelch Like ECH Associated Protein 1 (KEAP1) signaling pathway that plays a crucial role in the maintenance of cellular redox homeostasis. However, an involvement of 4-HNE and NRF2 in processes associated with the initiation of cancer, its progression, and response to therapy includes numerous, highly complex events. They occur through interactions between cancer and stromal cells. These events are dependent on many cell-type specific features. They start with the extent of NRF2 binding to its cytoplasmic repressor, KEAP1, and extend to the permissiveness of chromatin for transcription of Antioxidant Response Element (ARE)-containing genes that are NRF2 targets. This review will explore epigenetic molecular mechanisms of NRF2 transcription through the specific molecular anatomy of its promoter. It will explain the role of NRF2 in cancer stem cells, with respect to cancer therapy resistance. Additionally, it also discusses NRF2 involvement at the cross-roads of communication between tumor associated inflammatory and stromal cells, which is also an important factor involved in the response to therapy.
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- 2022
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16. Sex Hormone-Binding Globulin and Its Association to Cardiovascular Risk Factors in an Italian Adult Population Cohort
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Brigitta Buttari, Rachele Riganò, Luigi Palmieri, Cinzia Lo Noce, Stefan Blankenberg, Tanja Zeller, Serena Vannucchi, Anna Di Lonardo, Marco Gabbianelli, and Chiara Donfrancesco
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sex hormone-binding globulin ,cardiovascular risk biomarker ,epidemiology ,age ,sex ,Medicine (General) ,R5-920 ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Abnormal sex hormone-binding globulin (SHBG) and sex hormone concentrations are the cause or the consequence of cardiometabolic diseases, however, the clinical correlates of SHBG is clearly less understood. In our study we investigate sex- and age-specific serum SHBG levels and their association with cardiovascular risk (CVR) factors and high-risk conditions in an adult cohort of Italian population. Data from 1176 men and 2236 women, aged 20–81 were analyzed and serum SHBG determined in stored samples using an immunoassay. SHBG concentrations, higher in women than in men in the younger age groups, exhibited a curvilinear increase with age in men and a U-shaped curve across the lifespan in women, with a decrease from the 2nd to the 6th decade of age and an increase after the 6th decade when SHBG concentrations were similar in both sexes. Low SHBG serum levels correlated with the traditional CVR factors diabetes, obesity, and hypertension, whereas high level of SHBG correlated with cholesterol HDL. These associations were more numerous in women than in men, in whom decreased with age. The sex- and age specific differences observed in our population-based cohort should be considered in establishing reference ranges and clinical cut-off points to improve CVR score charts and therapeutic approaches.
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- 2022
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17. Oxidative Stress in Mucopolysaccharidoses: Pharmacological Implications
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Karolina Pierzynowska, Lidia Gaffke, Zuzanna Cyske, Grzegorz Węgrzyn, Brigitta Buttari, Elisabetta Profumo, and Luciano Saso
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antioxidants ,mucopolysaccharidoses ,oxidative stress ,Organic chemistry ,QD241-441 - Abstract
Although mucopolysaccharidoses (MPS) are caused by mutations in genes coding for enzymes responsible for degradation of glycosaminoglycans, storage of these compounds is crucial but is not the only pathomechanism of these severe, inherited metabolic diseases. Among various factors and processes influencing the course of MPS, oxidative stress appears to be a major one. Oxidative imbalance, occurring in MPS and resulting in increased levels of reactive oxidative species, causes damage of various biomolecules, leading to worsening of symptoms, especially in the central nervous system (but not restricted to this system). A few therapeutic options are available for some types of MPS, including enzyme replacement therapy and hematopoietic stem cell transplantation, however, none of them are fully effective in reducing all symptoms. A possibility that molecules with antioxidative activities might be useful accompanying drugs, administered together with other therapies, is discussed in light of the potential efficacy of MPS treatment.
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- 2021
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18. The Nrf2 Pathway in Ischemic Stroke: A Review
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Marcelo Farina, Leonardo Eugênio Vieira, Brigitta Buttari, Elisabetta Profumo, and Luciano Saso
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ischemic stroke ,Nrf2 ,treatment ,preclinical studies ,oxidative stress ,ischemic cascade ,Organic chemistry ,QD241-441 - Abstract
Ischemic stroke, characterized by the sudden loss of blood flow in specific area(s) of the brain, is the leading cause of permanent disability and is among the leading causes of death worldwide. The only approved pharmacological treatment for acute ischemic stroke (intravenous thrombolysis with recombinant tissue plasminogen activator) has significant clinical limitations and does not consider the complex set of events taking place after the onset of ischemic stroke (ischemic cascade), which is characterized by significant pro-oxidative events. The transcription factor Nuclear factor erythroid 2-related factor 2 (Nrf2), which regulates the expression of a great number of antioxidant and/or defense proteins, has been pointed as a potential pharmacological target involved in the mitigation of deleterious oxidative events taking place at the ischemic cascade. This review summarizes studies concerning the protective role of Nrf2 in experimental models of ischemic stroke, emphasizing molecular events resulting from ischemic stroke that are, in parallel, modulated by Nrf2. Considering the acute nature of ischemic stroke, we discuss the challenges in using a putative pharmacological strategy (Nrf2 activator) that relies upon transcription, translation and metabolically active cells in treating ischemic stroke patients.
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- 2021
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19. Pharmacological Protection against Ischemia-Reperfusion Injury by Regulating the Nrf2-Keap1-ARE Signaling Pathway
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Bercis Imge Ucar, Gulberk Ucar, Sarmistha Saha, Brigitta Buttari, Elisabetta Profumo, and Luciano Saso
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Nrf2/Keap1/ARE signaling pathway ,ischemia-reperfusion injury ,Nrf2 activators ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Ischemia/reperfusion (I/R) injury is associated with substantial clinical implications, including a wide range of organs such as the brain, kidneys, lungs, heart, and many others. I/R injury (IRI) occurs due to the tissue injury following the reestablishment of blood supply to ischemic tissues, leading to enhanced aseptic inflammation and stimulation of oxidative stress via reactive oxygen and nitrogen species (ROS/RNS). Since ROS causes membrane lipids’ peroxidation, triggers loss of membrane integrity, denaturation of proteins, DNA damage, and cell death, oxidative stress plays a critical part in I/R pathogenesis. Therefore, ROS regulation could be a promising therapeutic strategy for IRI. In this context, Nrf2 (NF-E2-related factor 2) is a transcription factor that regulates the expression of several factors involved in the cellular defense against oxidative stress and inflammation, including heme oxygenase-1 (HO-1). Numerous studies have shown the potential role of the Nrf2/HO-1 pathway in IRI; thus, we will review the molecular aspects of Nrf2/Kelch-like ECH-associated protein 1 (Keap1)/antioxidant response element (ARE) signaling pathway in I/R, and we will also highlight the recent insights into targeting this pathway as a promising therapeutic strategy for preventing IRI.
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- 2021
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20. Regulatory Role of Nrf2 Signaling Pathway in Wound Healing Process
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Ipek Süntar, Sümeyra Çetinkaya, Emiliano Panieri, Sarmistha Saha, Brigitta Buttari, Elisabetta Profumo, and Luciano Saso
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Nrf2 ,wound healing ,skin ,inflammation ,antioxidant ,Organic chemistry ,QD241-441 - Abstract
Wound healing involves a series of cellular events in damaged cells and tissues initiated with hemostasis and finally culminating with the formation of a fibrin clot. However, delay in the normal wound healing process during pathological conditions due to reactive oxygen species, inflammation and immune suppression at the wound site represents a medical challenge. So far, many therapeutic strategies have been developed to improve cellular homeostasis and chronic wounds in order to accelerate wound repair. In this context, the role of Nuclear factor erythroid 2-related factor 2 (Nrf2) during the wound healing process has been a stimulating research topic for therapeutic perspectives. Nrf2 is the main regulator of intracellular redox homeostasis. It increases cytoprotective gene expression and the antioxidant capacity of mammalian cells. It has been reported that some bioactive compounds attenuate cellular stress and thus accelerate cell proliferation, neovascularization and repair of damaged tissues by promoting Nrf2 activation. This review highlights the importance of the Nrf2 signaling pathway in wound healing strategies and the role of bioactive compounds that support wound repair through the modulation of this crucial transcription factor.
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- 2021
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21. Actin Is a Target of T-Cell Reactivity in Patients with Advanced Carotid Atherosclerotic Plaques
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Elisabetta Profumo, Brigitta Buttari, Linda Petrone, Giada Lacroce, Maria Chiara Tesori, Raffaele Capoano, Bruno Salvati, and Rachele Riganò
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Pathology ,RB1-214 - Abstract
Atherosclerosis is a chronic inflammatory disease of the arterial wall associated with autoimmune reactions. In a previous study, we observed the presence of actin-specific antibodies in sera from patients with carotid atherosclerosis. To extend our previous results we evaluated the possible role of actin as antigenic target of cell-mediated immune reactions in carotid atherosclerosis. Peripheral blood mononuclear cells (PBMC) from 17 patients and 16 healthy subjects were tested by cell proliferation assay and by ELISA for cytokine production. Actin induced a proliferative response in 47% of patients’ PBMC samples, with SI ranging from 2.6 to 21.1, and in none of the healthy subjects’ samples (patients versus healthy subjects, P=0.02). The presence of diabetes in patients was significantly associated with proliferative response to actin (P=0.04). IFN-γ and TNF-α concentrations were higher in PBMC from patients than in those from healthy subjects and in PBMC proliferating to actin than in nonproliferating ones. Our data demonstrate for the first time a role of actin as a target autoantigen of cellular immune reactions in patients with carotid atherosclerosis. The preferential proinflammatory Th1 activation suggests that actin could contribute to endothelial dysfunction, tissue damage, and systemic inflammation in carotid atherosclerosis.
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- 2013
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22. Biomarkers of Subclinical Atherosclerosis in Patients with Autoimmune Disorders
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Elisabetta Profumo, Manuela Di Franco, Brigitta Buttari, Roberta Masella, Carmelina Filesi, Maria Elena Tosti, Rossana Scrivo, Antongiulio Scarno, Antonio Spadaro, Luciano Saso, and Rachele Riganò
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Pathology ,RB1-214 - Abstract
Atherosclerosis is accelerated in rheumatoid arthritis (RA) and psoriatic arthritis (PsA). We investigated a possible association of oxidized low-density lipoproteins (ox-LDLs), nitric oxide (NO), 3-nitrotyrosine, vitamin A, vitamin E, and β-carotene serum levels with subclinical atherosclerosis in RA and PsA. By the use of ELISA, we observed higher ox-LDL levels in patients with intima-media thickness (IMT) > 1 than in patients with IMT ≤ 1 and a negative correlation between NO levels and IMT values. By the use of high-performance liquid chromatography, we determined higher levels of vitamin A in patients with PsA and IMT ≤ 1 than in controls and lower levels of β-carotene in patients with RA and PsA than in controls. β-carotene concentrations were negatively correlated to the duration of disease in RA. Our study confirms that ox-LDLs and NO may be markers of accelerated atherosclerosis in RA and PsA whereas vitamins seem to be associated only to the presence of the autoimmune disorders.
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- 2012
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23. T Lymphocyte Autoreactivity in Inflammatory Mechanisms Regulating Atherosclerosis
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Elisabetta Profumo, Brigitta Buttari, Luciano Saso, Raffaele Capoano, Bruno Salvati, and Rachele Riganò
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Technology ,Medicine ,Science - Abstract
Atherosclerosis has been clearly demonstrated to be a chronic inflammatory disease of the arterial wall. Both cells of the innate and the acquired immune system, particularly monocytes and T lymphocytes, are implicated in the atherogenic process, producing different cytokines with pro- and anti-inflammatory effects. The majority of pathogenic T cells involved in atherosclerosis are of the Th1 profile, that has been correlated positively with coronary artery disease. Many studies conducted to evaluate the molecular factors responsible for the activation of T cells have demonstrated that the main antigenic targets in atherosclerosis are modified endogenous structures. These self-molecules activate autoimmune reactions mainly characterized by the production of Th1 cytokines, thus sustaining the inflammatory mechanisms involved in endothelial dysfunction and plaque development. In this paper we will summarize the different T-cell subsets involved in atherosclerosis and the best characterized autoantigens involved in cardiovascular inflammation.
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- 2012
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24. Oxidative Stress in Cardiovascular Inflammation: Its Involvement in Autoimmune Responses
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Elisabetta Profumo, Brigitta Buttari, and Rachele Riganò
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Pathology ,RB1-214 - Abstract
Recently, it has become clear that atherosclerosis is a chronic inflammatory disease in which inflammation and immune responses play a key role. Accelerated atherosclerosis has been reported in patients with autoimmune diseases, suggesting an involvement of autoimmune mechanisms in atherogenesis. Different self-antigens or modified self-molecules have been identified as target of humoral and cellular immune responses in patients with atherosclerotic disease. Oxidative stress, increasingly reported in these patients, is the major event causing structural modification of proteins with consequent appearance of neoepitopes. Self-molecules modified by oxidative events can become targets of autoimmune reactions, thus sustaining the inflammatory mechanisms involved in endothelial dysfunction and plaque development. In this paper, we will summarize the best characterized autoantigens in atherosclerosis and their possible role in cardiovascular inflammation.
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- 2011
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25. Self-reported vs measured body mass index in the italian adults within cuore project 2018-19
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Chiara Donfrancesco, Laura Iannucci, Emanuela Bologna, Elisabetta Profumo, Cinzia Lonoce, Brigitta Buttari, Anna Lonardo, Serena Vannucchi, and Luigi Palmieri
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Health (social science) ,Epidemiology ,Health Policy ,Public Health, Environmental and Occupational Health ,Medicine (miscellaneous) ,Health Informatics - Published
- 2023
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26. Ribosomopathies and cancer: pharmacological implications
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Gazmend Temaj, Sarmistha Saha, Shpend Dragusha, Valon Ejupi, Brigitta Buttari, Elisabetta Profumo, Lule Beqa, and Luciano Saso
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cancer diseases ,Ribosomal Proteins ,therapy ,ribosome biogenesis ,General Medicine ,p53 activation ,ribosomopathies ,Neoplasms ,Protein Biosynthesis ,Humans ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,Ribosomes - Abstract
The ribosome is a ribonucleoprotein organelle responsible for protein synthesis, and its biogenesis is a highly coordinated process that involves many macromolecular components. Any acquired or inherited impairment in ribosome biogenesis or ribosomopathies is associated with the development of different cancers and rare genetic diseases. Interference with multiple steps of protein synthesis has been shown to promote tumor cell death.We discuss the current insights about impaired ribosome biogenesis and their secondary consequences on protein synthesis, transcriptional and translational responses, proteotoxic stress, and other metabolic pathways associated with cancer and rare diseases. The modulation of different therapeutic chemical entities targeting cancer inDespite the association between inherited mutations affecting ribosome biogenesis and cancer biology, the development of therapeutics targeting the essential cellular machinery has only started to emerge. New chemical entities should be designed to modulate different checkpoints (translating oncoproteins, dysregulation of specific ribosome-assembly machinery, ribosomal stress, and rewiring ribosomal functions). Although safe and effective therapies are lacking, consideration should be given to using existing drugs alone or in combination for long-term safety, with known risks for feasibility in clinical trials and synergistic effects.
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- 2022
27. Trend in potassium intake and Na/K ratio in the Italian adult population between the 2008 and 2018 CUORE project surveys
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Cinzia Lo Noce, Daniela Minutoli, Brigitta Buttari, Ornella Russo, Serena Vannucchi, Elisabetta Profumo, Simona Giampaoli, Paolo Bellisario, Pasquale Strazzullo, Daniela Galeone, Andrea Di Lenarda, Francesca Vespasiano, Roberto Iacone, Luigi Palmieri, Anna Di Lonardo, Graziano Onder, Ferruccio Galletti, Chiara Donfrancesco, Donfrancesco, C., Lo Noce, C., Russo, O., Buttari, B., Profumo, E., Minutoli, D., Di Lonardo, A., Iacone, R., Vespasiano, F., Vannucchi, S., Onder, G., Galletti, F., Galeone, D., Bellisario, P., Di Lenarda, A., Giampaoli, S., Palmieri, L., and Strazzullo, P.
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Adult ,Male ,medicine.medical_specialty ,Potassium intake ,Time Factors ,Epidemiology ,Endocrinology, Diabetes and Metabolism ,Urinary system ,Potassium ,Sodium ,Adult population ,Nutritional Status ,Medicine (miscellaneous) ,chemistry.chemical_element ,030209 endocrinology & metabolism ,Urinalysis ,030204 cardiovascular system & hematology ,Recommended Dietary Allowances ,Diet Surveys ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,K na ratio ,medicine ,Humans ,Nutrition ,Aged ,Public health ,Creatinine ,Nutrition and Dietetics ,business.industry ,Potassium, Dietary ,Sodium, Dietary ,Middle Aged ,Diet ,Renal Elimination ,Cross-Sectional Studies ,Italy ,chemistry ,Female ,Cardiology and Cardiovascular Medicine ,business ,Demography - Abstract
Background and aims Low potassium intake, in addition to high sodium, has been associated with higher risk of hypertension and CVD. The Study assessed habitual potassium intake and sodium/potassium ratio of the Italian adult population from 2008 to 2012 to 2018–2019 based on 24-h urine collection, in the framework of the CUORE Project/MINISAL-GIRCSI/MENO SALE PIU’ SALUTE national surveys. Methods and results Data were from cross-sectional surveys of randomly selected age-and-sex stratified samples of resident persons aged 35–74 years in 10 (out of 20) Italian regions. Urinary electrolyte and creatinine measurements were performed in a central laboratory. Analyses considered 942 men and 916 women, examined in 2008–2012, and 967 men and 1010 women, examined in 2018–2019. In 2008–2012, the age-standardized mean of potassium intake (urinary potassium accounts for 70% of potassium intake) was 3147 mg (95% CI 3086–3208) in men and 2784 mg (2727–2841) in women, whereas in 2018–2019, it was 3043 mg (2968–3118) and 2561 mg (2508–2614) respectively. In 2008–2012, age-adjusted prevalence of persons with an adequate potassium intake (i.e. ≥ 3510 mg/day) was 31% (95% CI 28–34%) for men and 18% (16–21%) for women; in 2018–2019, it was 26% (23–29%) and 12% (10–14%) respectively. The sodium/potassium ratio significantly decreased both in men and women. Conclusions The average daily potassium intake of the Italian general adult population remains lower than the WHO and EFSA recommended level. These results suggest the need of a revision to strengthen initiatives for the promotion of an adequate potassium intake at the population level.
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- 2021
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28. An Overview of NRF2-Activating Compounds Bearing α,β-Unsaturated Moiety and Their Antioxidant Effects
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Elisabetta Profumo, Brigitta Buttari, Luciano Saso, Pelin TELKOPARAN-AKILLILAR, and Melford Chuka Egbujor
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antioxidant ,Kelch-Like ECH-Associated Protein 1 ,NF-E2-Related Factor 2 ,α ,Organic Chemistry ,β-unsaturated moiety ,carbonyl ,General Medicine ,Catalysis ,Antioxidants ,NRF2 ,Computer Science Applications ,KEAP1 ,Inorganic Chemistry ,Oxidative Stress ,sulfinyl ,Parkinson’s disease ,anti-inflammatory ,sulfonyl ,α,β-unsaturated moiety ,Kelch-like ECH-associated protein 1 ,oxidative stress ,signal transduction ,antioxidants ,NF-E2-related factor 2 ,Physical and Theoretical Chemistry ,Molecular Biology ,Spectroscopy ,Signal Transduction - Abstract
The surge of scientific interest in the discovery of Nuclear Factor Erythroid 2 (NFE2)-Related Factor 2 (NRF2)-activating molecules underscores the importance of NRF2 as a therapeutic target especially for oxidative stress. The chemical reactivity and biological activities of several bioactive compounds have been linked to the presence of α,β-unsaturated structural systems. The α,β-unsaturated carbonyl, sulfonyl and sulfinyl functional groups are reportedly the major α,β-unsaturated moieties involved in the activation of the NRF2 signaling pathway. The carbonyl, sulfonyl and sulfinyl groups are generally electron-withdrawing groups, and the presence of the α,β-unsaturated structure qualifies them as suitable electrophiles for Michael addition reaction with nucleophilic thiols of cysteine residues within the proximal negative regulator of NRF2, Kelch-like ECH-associated protein 1 (KEAP1). The physicochemical property such as good lipophilicity of these moieties is also an advantage because it ensures solubility and membrane permeability required for the activation of the cytosolic NRF2/KEAP1 system. This review provides an overview of the reaction mechanism of α,β-unsaturated moiety-bearing compounds with the NRF2/KEAP1 complex, their pharmacological properties, structural activity-relationship and their effect on antioxidant and anti-inflammatory responses. As the first of its kind, this review article offers collective and comprehensive information on NRF2-activators containing α,β-unsaturated moiety with the aim of broadening their therapeutic prospects in a wide range of oxidative stress-related diseases.
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- 2022
29. Lupeol Counteracts the Proinflammatory Signalling Triggered in Macrophages by 7-Keto-Cholesterol: New Perspectives in the Therapy of Atherosclerosis
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Sarmistha Saha, Anna Rita Togna, Luciano Saso, Rachele Riganò, Elisabetta Profumo, and Brigitta Buttari
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CD36 Antigens ,Aging ,Article Subject ,CD36 ,Interleukin-1beta ,Anti-Inflammatory Agents ,Macrophage polarization ,Biochemistry ,Proinflammatory cytokine ,chemistry.chemical_compound ,lupeol ,therapy ,atherosclerosis ,Sequestosome-1 Protein ,Autophagy ,Humans ,Macrophage ,Scavenger receptor ,Ketocholesterols ,Foam cell ,Lupeol ,QH573-671 ,biology ,Chemistry ,Macrophages ,HLA-DR Antigens ,Cell Biology ,General Medicine ,Atherosclerosis ,Lipid Metabolism ,Interleukin-12 ,Endocytosis ,Up-Regulation ,Cell biology ,biology.protein ,Cytology ,Pentacyclic Triterpenes ,Reactive Oxygen Species ,Microtubule-Associated Proteins ,Signal Transduction ,Research Article - Abstract
Macrophage activation and polarization play a central role in atherosclerotic plaque fate. The M1/M2 activation phenotypes represent two profiles of the macrophage polarization state. During atherosclerosis regression or stabilization, macrophages switch from M1 proinflammatory phenotype to M2 anti-inflammatory reparative one. Here, we investigated whether the natural compound lupeol, a pentacyclic triterpene, induces phenotypical and functional changes in human M1 macrophages and counteracts the proinflammatory signalling triggered by 7-keto-cholesterol (7KC), a major product of oxidative stress-mediated cholesterol oxidation. Flow cytometric and immunochemical analysis showed that the treatment with lupeol of M1 monocyte-derived macrophagesM(IFN-γ/LPS)specifically stimulated these cells to upregulate the expression of the anti-inflammatory cytokines interleukin- (IL-)10 and TGF-β, and of the scavenger receptor CD36, whereas downregulated the proinflammatory cytokine IL-12 and the M1 activation marker HLA-DR. Pretreatment of macrophages with lupeol prevented the release of IL-12, IL-1β, and the upregulation of HLA-DR expression triggered by 7KC and increased the IL-10 production and CD36 expression. This treatment also prevented the impairment of endocytosis triggered by 7KC and prevented 7KC-induced foam cell formation by reducing the lipid droplet accumulation in M1-polarized THP-1 macrophages, whereas showed an additive effect in reactive oxygen species (ROS) production. Western blotting analysis of autophagy markers LC3-I/II and p62-SQSTM1 in M1-polarized THP-1 macrophages demonstrated that lupeol activated autophagy as indicated by increased LC3-II levels, and by marked inhibition of p62. These findings indicate that lupeol has a cytoprotective effect on 7KC-proinflammatory signalling by efficiently switching the macrophage polarization toward an anti-inflammatory phenotype, probably through the activation of the autophagy pathway by increasing ROS production, the reduction of cellular lipid accumulation, and an overall reduction of proinflammatory phenotype. Thus, our data demonstrating an anti-inflammatory and immunomodulatory activity of lupeol in human M1 macrophages suggest its usefulness as an adjunctive drug in the therapy of atherosclerosis.
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- 2020
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30. Carbamylation of β2-GPI generates new autoantigens for Antiphospholipid Syndrome. a new tool for diagnosis of 'seronegative' patients
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Antonella, Capozzi, Simona, Truglia, Brigitta, Buttari, Serena, Recalchi, Gloria, Riitano, Valeria, Manganelli, Silvia, Mancuso, Cristiano, Alessandri, Agostina, Longo, Vincenzo, Mattei, Elisabetta, Profumo, Tina, Garofalo, Roberta, Misasi, Fabrizio, Conti, and Maurizio, Sorice
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Protein Carbamylation ,β2-gpi-glycoprotein i ,NF-kappa B ,Thrombosis ,seronegative aps ,Autoantigens ,Thrombocytopenia ,p38 Mitogen-Activated Protein Kinases ,Rheumatology ,Pregnancy ,beta 2-Glycoprotein I ,neo-epitopes ,Antibodies, Antiphospholipid ,Humans ,carbamylation ,Female ,Pharmacology (medical) ,Extracellular Signal-Regulated MAP Kinases ,antiphospholipid syndrome - Abstract
Objectives Antiphospholipid syndrome (APS) is a prothrombotic condition defined by recurrent thrombosis, pregnancy complications and circulating antiphospholipid antibodies (aPL), including anti-β2-glycoprotein I (β2-GPI). In clinical practice it is possible to find patients with APS persistently negative for the aPL tests according to Sydney criteria (‘seronegative APS’, SN-APS). Recently, several autoimmune responses have been described as a consequence of post-translational modifications of their target autoantigens. This study was undertaken to test carbamylated-β2-GPI (Carb-β2-GPI) as a new autoantigen of APS. Methods β2-GPI was carbamylated by potassium cyanate and used to investigate its effect on monocyte-derived dendritic cell (moDC) phenotype and function. Sera from 114 SN-APS patients, 60 APS, 20 patients with RA, 20 non-APS thrombosis and 50 healthy donors were analysed for anti-Carb-β2-GPI by ELISA. Results Carb-β2-GPI is able to activate moDCs, inducing upregulation of CD80, CD86 and CD40, activation of extracellular signal-regulated kinase, p38 mitogen-activated protein kinase and nuclear factor-κB, and IL-12p70 release. Serological results showed that both 37/114 SN-APS (32.46%) and 23/60 APS (38.33%) patients resulted positive for anti-Carb-β2-GPI. Interestingly, SN-APS patients who tested positive for anti-Carb-β2-GPI showed a higher prevalence of thrombocytopenia (P = 0.04, likelihood positive ratio of 3.9). Conclusion Data obtained from both functional tests on moDCs and immunological approaches prompted identification of Carb-β2-GPI as a ‘new’ antigenic target in APS. In particular, anti-Carb-β2-GPI revealed a potential usefulness in identification of a significant proportion of SN-APS patients. Moreover, since patients who tested positive for anti-Carb-β2-GPI reported a high risk of thrombocytopenia, this test may be considered a suitable approach in the clinical evaluation of SN-APS.
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- 2022
31. Trends of blood pressure, raised blood pressure, hypertension and its control among Italian adults: CUORE Project cross-sectional health examination surveys 1998/2008/2018
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Chiara Donfrancesco, Anna Di Lonardo, Cinzia Lo Noce, Brigitta Buttari, Elisabetta Profumo, Francesca Vespasiano, Serena Vannucchi, Ferruccio Galletti, Graziano Onder, Michele Massimo Gulizia, Daniela Galeone, Paolo Bellisario, and Luigi Palmieri
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Adult ,Male ,Cross-Sectional Studies ,Hypertension ,Prevalence ,Humans ,Female ,Blood Pressure ,General Medicine ,Health Surveys ,Antihypertensive Agents - Abstract
ObjectivesTo assess in the Italian general adult population the trends of blood pressure (BP) and prevalence of raised BP (RBP), hypertension and its control in order to evaluate population health and care, and the achievement of an RBP 25% relative reduction as recommended by the WHO at population level.DesignResults comparison of health examination surveys, cross-sectional observational studies based on health examination of randomly selected age and sex stratified samples including residents aged 35–74 years. Data of the 2018/2019 survey were compared with the previous ones collected in 1998/2002 and 2008/2012.SettingHealth examination surveys conducted in Italy within the CUORE Project following standardised methodologies.Participants2985 men and 2955 women examined in 1998/2002, 2218 men and 2204 women examined in 2008/2012 and 1031 men and 1066 women examined in 2018/2019.Primary and secondary outcome measuresAge-standardised mean of BP, prevalence of RBP (systolic BP and/or diastolic BP ≥140/90 mm Hg), hypertension (presenting or being treated for RBP) and its awareness and control, according to sex, age class and educational level.ResultsIn 2018/2019, a significant reduction was observed in systolic BP and diastolic BP in men (1998/2002: 136/86 mm Hg; 2008/2012: 132/84 mm Hg; and 2018/2019: 132/78 mm Hg) and women (132/82 mm Hg, 126/78 mm Hg and 122/73 mm Hg), and in the prevalence of RBP (50%, 40% and 30% in men and 39%, 25% and 16% in women) and of hypertension (54%, 49% and 44% in men and 45%, 35% and 32% in women). Trends were consistent by age and education attainment. In 2018/2019, hypertensive men and women with controlled BP were only 27% and 41%, but a significant favourable trend was observed.ConclusionsData from 2018/2019 underlined that RBP is still commonly observed in the Italian population aged 35–74 years, however, the WHO RBP target at that time may be considered met.
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- 2022
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32. Nitro-Oxidative Stress and Mitochondrial Dysfunction in Human Cell Lines Exposed to the Environmental Contaminants PFOA and BPA
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Marzia Arese, Luciano Saso, Emiliano Panieri, Flaminia Desideri, Giorgia Abballe, Brigitta Buttari, Benedetta Sprovera, Marla Xhani, and Maria Chiara Magnifico
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emerging contaminants ,General Immunology and Microbiology ,nitric oxide signaling ,General Medicine ,General Biochemistry, Genetics and Molecular Biology ,Cell Line ,Mitochondria ,Oxidative Stress ,endocrine disruptors ,mitochondrial dysfunction ,Humans ,nitro-oxidative stress ,Reactive Oxygen Species - Abstract
Bisphenol A (BPA) and perfluorooctanoic acid (PFOA) are synthetic compounds widely utilized in industrial activities devoted to the production of daily life plastic, metal products, and packaging from which they are able to migrate to food and water. Due to their persistence in the environment, living organisms are chronically exposed to these pollutants. BPA and PFOA have adverse effects on tissues and organs. The aim of this study was to identify the molecular targets and biochemical mechanisms involved in their toxicity.HepG2 and HaCaT cells were treated with BPA or PFOA, and the trypan blue exclusion test and 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay were performed to define the conditions for subsequent investigations. We conducted quantitative PCR and western blot analysis to evaluate the expression of proteins involved in nitric oxide (NO) signaling. Cell-based assays were carried out to evaluate reactive oxygen species (ROS) production, nitrite/nitrate (NOx) accumulation, 3-nitrotyrosine (3-NT) formation, and mitochondrial membrane potential (MMP) determination in treated cells.HepG2 and HaCaT cells incubated for 24 h with subtoxic concentrations of BPA or PFOA (50 and 10 μM, respectively) exhibited altered mRNA and protein expression levels of NO synthase isoforms, manganese superoxide dismutase, and cytochrome c. Treatment with PFOA led to activation of inducible NO synthase (NOS), a marker of nitrosative stress, accompanied by the increased production of ROS, NOx, and 3-NT and alterations of the MMP compared to controls.The results of this study indicate the major involvement of the NO signaling axis in the persistent alteration of cell redox homeostasis and mitochondrial dysfunction induced by BPA and PFOA, highlighting the specific role of PFOA in NOS regulation and induction of nitro-oxidative stress.
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- 2022
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33. Neuropeptide Y Promotes Human M2 Macrophage Polarization and Enhances p62/SQSTM1-Dependent Autophagy and NRF2 Activation
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Elisabetta Profumo, Elisa Maggi, Marzia Arese, Claudio Di Cristofano, Bruno Salvati, Luciano Saso, Rita Businaro, and Brigitta Buttari
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Lipopolysaccharides ,NF-E2-Related Factor 2 ,Macrophages ,Organic Chemistry ,General Medicine ,Macrophage Activation ,Atherosclerosis ,cytokines ,Catalysis ,NRF2 ,Interleukin-10 ,Computer Science Applications ,Inorganic Chemistry ,Sequestosome-1 Protein ,Autophagy ,Humans ,neuropeptide Y ,macrophages ,autophagy ,atherosclerosis ,Neuropeptide Y ,Physical and Theoretical Chemistry ,Molecular Biology ,Spectroscopy - Abstract
Neuropeptide Y (NPY) is an abundantly expressed peptide capable of modulating innate and adaptive immune responses and regulating chemotaxis and cytokine secretion by macrophages. Abnormal regulation of NPY is involved in the development of atherosclerosis. The inflammatory infiltrate within atherosclerotic plaque is characterized by accumulation of macrophages, which are subject to reprogram their phenotypes in response to environmental signals. Macrophage number and phenotype influence plaque fate. Here, we investigated the effect of NPY on the changes in phenotype and functions of human macrophages, from the pro-inflammatory phenotype M1 to the reparative M2, indicative of atherosclerosis regression or stabilization. Human monocytes were differentiated in vitro into macrophages with M-CSF (M0) and polarized towards an M1 phenotype with IFN-γ plus LPS M(IFN-γ/LPS) or M2 with IL-10 (M IL-10) and further challenged with NPY (10−7–10−9 M) for 8–36 h. Cell phenotype and functions were analyzed by immunofluorescence and immunochemical analyses. NPY affected macrophage surface markers and secretome profile expression, thus shifting macrophages toward an M2-like phenotype. NPY also prevented the impairment of endocytosis triggered by the oxysterol 7-keto-cholesterol (7KC) and prevented 7KC-induced foam cell formation by reducing the lipid droplet accumulation in M0 macrophages. NPY-treated M0 macrophages enhanced the autophagosome formation by upregulating the cell content of the autophagy markers LC3-II and p62-SQSTM1, increased activation of the anti-oxidative transcription factor NRF2 (NF-E2-related factor 2), and subsequently induced its target gene HMOX1 that encodes heme oxygenase-1. Our findings indicate that NPY has a cytoprotective effect with respect to the progression of the inflammatory pathway, both enhancing p62/SQSTM1-dependent autophagy and the NRF2–antioxidant signaling pathway in macrophages. NPY signaling may have a crucial role in tissue homeostasis in host inflammatory responses through the regulation of macrophage balance and functions within atherosclerosis.
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- 2022
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34. Trends of overweight, obesity and anthropometric measurements among the adult population in Italy: The CUORE Project health examination surveys 1998, 2008, and 2018
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Chiara Donfrancesco, Elisabetta Profumo, Cinzia Lo Noce, Daniela Minutoli, Anna Di Lonardo, Brigitta Buttari, Francesca Vespasiano, Serena Vannucchi, Ferruccio Galletti, Graziano Onder, Furio Colivicchi, Daniela Galeone, Paolo Bellisario, and Luigi Palmieri
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Adult ,Male ,Multidisciplinary ,Italy ,Prevalence ,Humans ,Female ,Obesity ,Overweight ,Noncommunicable Diseases ,Health Surveys ,Body Mass Index - Abstract
Background/Objectives Obesity is associated with an increased risk of noncommunicable diseases, such as diabetes, coronary heart disease, stroke, cancers, and conditions, including obstructive sleep apnea and osteoarthritis. Obesity is largely preventable, and halting its rise is one of the World Health Organization Global Action Plan for the Prevention of Noncommunicable Diseases targets. This study aimed to assess trends of anthropometric measurements in Italy using the data collected within the CUORE Project health examination surveys (HESs) 1998, 2008, and 2018. Subjects/Methods Within the HESs 1998–2002, 2008–2012, and 2018–2019, anthropometric measurements were collected in random samples of the resident population aged 35–74 years, stratified by age and sex, from 10 Italian Regions in Northern, Central, and Southern Italy (2984 men and 2944 women, 2224 men and 2188 women, 1035 men and 1065 women, respectively). Weight, height, and waist and hip circumferences were measured using standardized methodologies. A standardized questionnaire was used to collect data on education. Indicators were age standardized. Results For both men and women, mean body mass index in 2018 was comparable with those in 1998 and 2008 (in 1998, 2008, and 2018—men: 26.7, 27.5, and 27.0 kg/m2; women: 26.2, 26.6, and 26.3 kg/m2). In 1998, 2008, 2018 prevalence of overweight resulted 49%, 47%, 46% in men and 33%, 32%, 28% in women respectively; prevalence of obesity resulted 17%, 24% 20% in men and 19%, 23%, 23% in women respectively. All indicators of excess weight worsen with increasing age and are more severe in persons with a lower educational level. Conclusions Although the overall trend of excess weight over the past two decades appeared to be substantially stable in the Italian adult population, the continuous strengthening of undertaken initiatives should continue since there remains a high proportion of overweight or obesity and a gap between educational levels.
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- 2021
35. Oxidative Stress in Mucopolysaccharidoses: Pharmacological Implications
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Zuzanna Cyske, Elisabetta Profumo, Grzegorz Węgrzyn, Lidia Gaffke, Karolina Pierzynowska, Brigitta Buttari, and Luciano Saso
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medicine.medical_treatment ,Central nervous system ,Pharmaceutical Science ,Hematopoietic stem cell transplantation ,Oxidative phosphorylation ,Review ,Bioinformatics ,medicine.disease_cause ,Analytical Chemistry ,Glycosaminoglycan ,QD241-441 ,Drug Discovery ,Medicine ,Animals ,Humans ,Enzyme Replacement Therapy ,Physical and Theoretical Chemistry ,Glycosaminoglycans ,chemistry.chemical_classification ,Reactive oxygen species ,business.industry ,Organic Chemistry ,antioxidants ,mucopolysaccharidoses ,oxidative stress ,Enzyme replacement therapy ,Genetic Therapy ,Mucopolysaccharidoses ,Oxidative Stress ,Enzyme ,medicine.anatomical_structure ,chemistry ,Chemistry (miscellaneous) ,Molecular Medicine ,business ,Oxidative stress - Abstract
Although mucopolysaccharidoses (MPS) are caused by mutations in genes coding for enzymes responsible for degradation of glycosaminoglycans, storage of these compounds is crucial but is not the only pathomechanism of these severe, inherited metabolic diseases. Among various factors and processes influencing the course of MPS, oxidative stress appears to be a major one. Oxidative imbalance, occurring in MPS and resulting in increased levels of reactive oxidative species, causes damage of various biomolecules, leading to worsening of symptoms, especially in the central nervous system (but not restricted to this system). A few therapeutic options are available for some types of MPS, including enzyme replacement therapy and hematopoietic stem cell transplantation, however, none of them are fully effective in reducing all symptoms. A possibility that molecules with antioxidative activities might be useful accompanying drugs, administered together with other therapies, is discussed in light of the potential efficacy of MPS treatment.
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- 2021
36. The Nrf2 Pathway in Ischemic Stroke: A Review
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Luciano Saso, Leonardo Eugênio Vieira, Brigitta Buttari, Marcelo Farina, and Elisabetta Profumo
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NF-E2-Related Factor 2 ,medicine.medical_treatment ,Pharmaceutical Science ,Nrf2 ,ischemic cascade ,ischemic stroke ,oxidative stress ,preclinical studies ,treatment ,Review ,medicine.disease_cause ,Bioinformatics ,Analytical Chemistry ,Pharmacological treatment ,QD241-441 ,Nrf2 pathway ,Drug Discovery ,medicine ,Animals ,Humans ,Physical and Theoretical Chemistry ,Transcription factor ,business.industry ,Activator (genetics) ,Organic Chemistry ,Thrombolysis ,Ischemic cascade ,Chemistry (miscellaneous) ,Ischemic stroke ,Molecular Medicine ,business ,Oxidative stress - Abstract
Ischemic stroke, characterized by the sudden loss of blood flow in specific area(s) of the brain, is the leading cause of permanent disability and is among the leading causes of death worldwide. The only approved pharmacological treatment for acute ischemic stroke (intravenous thrombolysis with recombinant tissue plasminogen activator) has significant clinical limitations and does not consider the complex set of events taking place after the onset of ischemic stroke (ischemic cascade), which is characterized by significant pro-oxidative events. The transcription factor Nuclear factor erythroid 2-related factor 2 (Nrf2), which regulates the expression of a great number of antioxidant and/or defense proteins, has been pointed as a potential pharmacological target involved in the mitigation of deleterious oxidative events taking place at the ischemic cascade. This review summarizes studies concerning the protective role of Nrf2 in experimental models of ischemic stroke, emphasizing molecular events resulting from ischemic stroke that are, in parallel, modulated by Nrf2. Considering the acute nature of ischemic stroke, we discuss the challenges in using a putative pharmacological strategy (Nrf2 activator) that relies upon transcription, translation and metabolically active cells in treating ischemic stroke patients.
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- 2021
37. Post-translational modifications of proteins in antiphospholipid antibody syndrome
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Rachele Riganò, Luciano Saso, Brigitta Buttari, Elisabetta Profumo, Antonella Capozzi, and Maurizio Sorice
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Antigenicity ,antiphospholipid antibody syndrome ,Clinical Biochemistry ,Autoimmunity ,Inflammation ,030204 cardiovascular system & hematology ,Autoantigens ,pharmacology ,General Biochemistry, Genetics and Molecular Biology ,Epitope ,Pathogenesis ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Antigen ,Humans ,Medicine ,biology ,business.industry ,Biochemistry (medical) ,Autoantibody ,Proteins ,Antiphospholipid Syndrome ,Oxidative Stress ,030220 oncology & carcinogenesis ,Immunology ,biology.protein ,medicine.symptom ,Antibody ,business ,Protein Processing, Post-Translational - Abstract
Antiphospholipid antibody syndrome (APS) is a systemic autoimmune disease characterized by arterial and venous thrombosis and/or pregnancy morbidity. The incidence is around five new cases/100,000 persons per year and the prevalence is around 40-50 cases/100,000. The prevalence is higher (about 30%) among patients with systemic lupus erythematosus. APS is associated with circulating antiphospholipid antibodies (aPLs), a heterogeneous group of autoantibodies directed against negatively charged molecules and a combination of protein-complexed phospholipids. The predominant protein antigen in this disorder is beta 2-glycoprotein I (β2GPI). Despite the discovery of "new" antigenic targets and development of "new" methodological approaches, the laboratory diagnosis of APS is still an evolving field and studies to identify further antigenic target(s) as potential diagnostic markers and risk predictors are in progress. In particular, recent studies were aimed at analyzing the pathogenic role of post-translational modifications (PTMs) of proteins induced by inflammation and/or oxidative stress as modulators of protein structure and function and possibly as a source of antigenic epitopes. The present review is focused on PTMs of self-proteins responsible for autoimmune reactions in patients with APS. At present, the known PTMs in APS involve β2GPI. In particular, the PTM of β2GPI via thiol-exchange reactions is a highly specific phenomenon that makes the protein more antigenic. Other PTMs, including sialylation and acetylation, may affect β2GPI antigenicity. Moreover, the addition or loss of carbohydrate chains affects β2GPI immunoreactivity since carbohydrates are determining factors for β2GPI conformation. In addition to β2GPI, PTMs of other self proteins such as vimentin and annexins may play a role in the immune response during APS. The study of PTMs is useful to clarify the role of modified proteins in the pathogenesis of APS as well as to design more efficient diagnostic/prognostic tools and more targeted therapeutic approaches.
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- 2019
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38. Regulatory Role of Nrf2 Signaling Pathway in Wound Healing Process
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Sarmistha Saha, Ipek Süntar, Elisabetta Profumo, Luciano Saso, Sümeyra Çetinkaya, Emiliano Panieri, and Brigitta Buttari
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antioxidant ,Pharmaceutical Science ,Cellular homeostasis ,Organic chemistry ,Apoptosis ,wound healing ,Review ,Analytical Chemistry ,0302 clinical medicine ,QD241-441 ,Cell Movement ,Drug Discovery ,Medicine ,chemistry.chemical_classification ,0303 health sciences ,biology ,integumentary system ,Cell biology ,Chemistry (miscellaneous) ,030220 oncology & carcinogenesis ,Molecular Medicine ,medicine.symptom ,Oxidation-Reduction ,Signal Transduction ,skin ,NF-E2-Related Factor 2 ,Inflammation ,Context (language use) ,Fibrin ,Nrf2 ,03 medical and health sciences ,Autophagy ,Animals ,Humans ,Physical and Theoretical Chemistry ,Transcription factor ,Cell Proliferation ,030304 developmental biology ,Reactive oxygen species ,business.industry ,pharmacology ,nrf2 ,inflammation ,Oxidative Stress ,Gene Expression Regulation ,chemistry ,Cytoprotection ,Hemostasis ,biology.protein ,Reactive Oxygen Species ,business ,Wound healing ,Biomarkers - Abstract
Wound healing involves a series of cellular events in damaged cells and tissues initiated with hemostasis and finally culminating with the formation of a fibrin clot. However, delay in the normal wound healing process during pathological conditions due to reactive oxygen species, inflammation and immune suppression at the wound site represents a medical challenge. So far, many therapeutic strategies have been developed to improve cellular homeostasis and chronic wounds in order to accelerate wound repair. In this context, the role of Nuclear factor erythroid 2-related factor 2 (Nrf2) during the wound healing process has been a stimulating research topic for therapeutic perspectives. Nrf2 is the main regulator of intracellular redox homeostasis. It increases cytoprotective gene expression and the antioxidant capacity of mammalian cells. It has been reported that some bioactive compounds attenuate cellular stress and thus accelerate cell proliferation, neovascularization and repair of damaged tissues by promoting Nrf2 activation. This review highlights the importance of the Nrf2 signaling pathway in wound healing strategies and the role of bioactive compounds that support wound repair through the modulation of this crucial transcription factor.
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- 2021
39. Trend of salt intake measured by 24-h urine collection in the Italian adult population between the 2008 and 2018 CUORE project surveys
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Roberto Iacone, Brigitta Buttari, Cinzia Lo Noce, Daniela Galeone, Serena Vannucchi, Simona Giampaoli, Michele Massimo Gulizia, Ornella Russo, Pasquale Strazzullo, Luigi Palmieri, Francesca Vespasiano, Paolo Bellisario, Graziano Onder, Daniela Minutoli, Ferruccio Galletti, Chiara Donfrancesco, Anna Di Lonardo, Elisabetta Profumo, Donfrancesco, C., Lo Noce, C., Russo, O., Minutoli, D., Di Lonardo, A., Profumo, E., Buttari, B., Iacone, R., Vespasiano, F., Vannucchi, S., Onder, G., Galletti, F., Galeone, D., Bellisario, P., Gulizia, M. M., Giampaoli, S., Palmieri, L., and Strazzullo, P.
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,Epidemiology ,Endocrinology, Diabetes and Metabolism ,Population ,Adult population ,Medicine (miscellaneous) ,030209 endocrinology & metabolism ,Urinalysis ,030204 cardiovascular system & hematology ,Recommended Dietary Allowances ,Diet Surveys ,Excretion ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Sodium Chloride, Dietary ,Salt intake ,education ,Aged ,24 h urine ,education.field_of_study ,Nutrition and Dietetics ,business.industry ,Feeding Behavior ,Diet, Sodium-Restricted ,Middle Aged ,Non-communicable disease ,Diet ,Cross-Sectional Studies ,Italy ,Chronic Disease ,Female ,Christian ministry ,Diet, Healthy ,Cardiology and Cardiovascular Medicine ,business ,Risk Reduction Behavior ,Body mass index ,Demography - Abstract
Background and aims: The WHO Global Action Plan for the Prevention of non-communicable diseases (NCDs) recommends a 30% relative reduction in mean population salt/sodium intake. The study assessed the trend in the habitual salt intake of the Italian adult population from 2008 to 2012 to 2018–2019 based on 24-h urinary sodium excretion, in the framework of the CUORE Project/MINISAL-GIRCSI/MENO SALE PIU’ SALUTE national surveys. Methods and results: Data were from cross-sectional surveys of randomly selected age and sex–stratified samples of resident persons aged 35–74 years in 10 (out of 20) Italian Regions distributed in North, Centre and South of the Country. Urinary sodium and creatinine measurements were carried out in a central laboratory. The analyses included 942 men and 916 women examined in 2008–2012, and 967 men and 1010 women examined in 2018–2019. The age-standardized mean daily population salt (sodium chloride) intake was 10.8 g (95% CI 10.5–11.1) in men and 8.3 g (8.1–8.5) in women in 2008–2012 and respectively 9.5 g (9.3–9.8) and 7.2 g (7.0–7.4) in 2018–2019. A statistically significant (p
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- 2021
40. Activation of Nrf2 signaling pathway by natural and synthetic chalcones: a therapeutic road map for oxidative stress
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Elisabetta Profumo, Melford C. Egbujor, Brigitta Buttari, Luciano Saso, and Sarmistha Saha
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Chalcone ,Keap1 ,Antioxidant ,NF-E2-Related Factor 2 ,medicine.medical_treatment ,medicine.disease_cause ,030226 pharmacology & pharmacy ,Nrf2 ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Chalcones ,Michael acceptor mechanism ,medicine ,Animals ,Humans ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,Gene ,Pharmacology, Antioxidant ,Inflammation ,Pharmacology ,business.industry ,General Medicine ,respiratory system ,KEAP1 ,Cell biology ,Oxidative Stress ,chemistry ,Gene Expression Regulation ,030220 oncology & carcinogenesis ,Drug Design ,Signal transduction ,business ,human activities ,Oxidation-Reduction ,Oxidative stress ,Nrf2 signaling ,Signal Transduction - Abstract
Introduction:Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway plays a key role in diverse gene expressions responsible for protection against oxidative stress and xenobiotics. C...
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- 2021
41. Body mass index and obesity in Italy: results of CUORE Project-Health Examination Survey 2018-2019
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Simona Giampaoli, Daniela Minutoli, Chiara Donfrancesco, C Lo Noce, Elisabetta Profumo, Paolo Bellisario, Brigitta Buttari, Pasquale Strazzullo, A Di Lonardo, and Luigi Palmieri
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Health examination ,CUORE ,business.industry ,Environmental health ,Public Health, Environmental and Occupational Health ,medicine ,Overweight ,medicine.symptom ,Proxy (statistics) ,business ,medicine.disease ,Body mass index ,Obesity - Abstract
Background The WHO Global Action Plan for the Prevention of Non-Communicable Disease (WHO-NCD) recommends to halt the rise of obesity by 2025. Obesity is largely preventable. This preliminary analysis aims to assess mean level of BMI and prevalence of obesity in the Italian general adult population using the data collected within the CUORE Project to investigate if Italy can meet the WHO-NCD target. Methods Within the health examination survey conducted in 2018-2019, mean level of BMI and prevalence of obesity (BMI > =30 kg/m2) and overweight (25 Results In this preliminary analysis, mean level of BMI was 26.8 kg/m2 (95% C.I. 26.5-27.1) in men and 25.9 kg/m2 (25.6-26.3) in women. Prevalence of obesity was 19% (16-22) in men and 22% (19-25) in women; prevalence of overweight was 45% (41-48) in men and 28% (25-31) in women. Obesity resulted significantly higher in persons with lower educational level (primary or middle school) vs those with higher education: 26% (20-31) vs 16% (13-19) in men and 33% (27-38) vs 17% (14-20) in women. Both in men and women prevalence of obesity was significantly higher in the Southern regions. Conclusions Preliminary data show that more than half of Italian adults are overweight/obese. However, in comparison to BMI measured in the CUORE Project 10 years earlier, the prevalence of people at normal weight is increasing, moving in the direction of the WHO-NCDs obesity target. Preventive actions at community level should be more incisive in the population at low socio-economic level. Key messages Mean BMI and prevalence of obesity in the Italian general adult population are still high. If confirmed, in the last ten years an increase of normal weight prevalence in the Italian general adult population seems to be occurred.
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- 2020
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42. Raised blood pressure in Italy: results of the CUORE Project-health examination survey 2018-2019
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Luigi Palmieri, Brigitta Buttari, Daniela Minutoli, Ferruccio Galletti, Elisabetta Profumo, Chiara Donfrancesco, C Lo Noce, Paolo Bellisario, Simona Giampaoli, and A Di Lonardo
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medicine.medical_specialty ,Health examination ,CUORE ,business.industry ,Family medicine ,Public Health, Environmental and Occupational Health ,Medicine ,Raised blood pressure ,business - Abstract
Background The WHO Global Action Plan for the Prevention of Non-Communicable Disease (WHO-NCD) recommends a 25% relative reduction in the prevalence of raised blood pressure (RBP) by 2025. Prevalence of RBP and mean blood pressure in the Italian general adult population measured in the 2018 CUORE Project-Health Examination Survey are presented to investigate if Italy can reach this target. Methods Within the health examination survey conducted in 2018-2019, representative random samples of resident population, aged 35-74 years, stratified by age and sex (822 men and 869 women) were examined in 8 Italian Regions from the Northern, Central and Southern Italy. Blood pressure was measured by automated oscillometric device using standardized procedures and methods; mean level of two measurements are here considered. RBP is defined as systolic and/or diastolic blood pressure equal or greater than 140/90 mmHg or being under specific drug treatment. The survey is funded by the Italian Ministry of Health-CCM. Results Preliminary analysis shows that prevalence of RBP is 43% (95% C.I. 40-47) in men and 32% (29-36) in women. Prevalence of persons with raised blood pressure and not receiving pharmacological treatment is 19% (15-22) in men and 9% (5-12) in women. In men and women prevalence of raised blood pressure is significantly higher in the Southern Regions. Mean value of systolic blood pressure is 131 mmHg (130-132) in men and 122 mmHg (121-123) in women. Mean value of diastolic blood pressure is 77 mmHg (76-78) in men and 73 mmHg (72-74) in women. Conclusions Preliminary data underline that RBP is commonly observed in the Italian adult population. However, in comparison to data measured within the CUORE Project 10 years earlier, prevalence of RBP and mean blood pressure are declining, facilitating the meeting of WHO-NCDs target. Key messages Raised blood pressure is commonly observed in the Italian general adult population. If confirmed, in the last ten years prevalence of raised blood pressure and mean blood pressure are declining in the Italian general adult population.
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- 2020
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43. Abstract P220: Obesity in the Italian Adult Population: Preliminary Results of the 2018-2019 Cuore Project-health Examination Survey
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Simona Giampaoli, Cinzia Lo Noce, Daniela Minutoli, Brigitta Buttari, Luigi Palmieri, Chiara Donfrancesco, Paolo Bellisario, Anna Di Lonardo, Elisabetta Profumo, Pasquale Strazzullo, and Serena Vannucchi
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Pediatrics ,medicine.medical_specialty ,business.industry ,Adult population ,medicine.disease ,Obesity ,Health examination ,CUORE ,Increased risk ,Physiology (medical) ,Diabetes mellitus ,Epidemiology ,medicine ,Cardiology and Cardiovascular Medicine ,business ,Stroke - Abstract
Introduction: Obesity is associated to an increased risk of hypertension, non-communicable diseases (NCDs), such as diabetes, coronary heart disease, stroke, and cancers, and conditions including obstructive sleep apnoea and osteoarthritis. Obesity is largely preventable and one of the WHO Global Action Plan for the Prevention of NCDs targets is to halt its rise. Hypothesis: Between 2000 and 2016, obesity trends showed a steady increase in all WHO regions and income groups. This preliminary analysis aims to assess mean level of BMI and prevalence of obesity in the Italian general adult population using the data collected within the CUORE Project-health examination survey. Methods: Within the ongoing survey started in 2018, mean of BMI and prevalence of obesity (BMI>=30 kg/m 2 ) and overweight (252 ) were assessed in random samples of resident population, aged 35-74 years, stratified by age and sex (men 822 and women 869), from 8 Italian Regions in Northern, Central and Southern Italy. Weight and height were measured using standardized methodologies. A standardized questionnaire was used to collect data on education and physical inactivity. The survey is funded by the Italian Ministry of Health-CCM. Results: Mean values of BMI resulted 26.8 kg/m 2 (95% C.I. 26.5-27.1) in men and 25.9 kg/m 2 (25.6-26.3) in women. Prevalence of obesity was 19.0% (16.3-21.7) in men and 21.7% (19.0-24.5) in women; prevalence of overweight was 44.5% (41.1-47.9) in men and 28.4% (25.4-31.4) in women. Obesity levels resulted significantly higher in persons with lower education (primary or high school) vs those with higher level of education: 25.6% (20.0-31.1) vs 16.0% (13.0-19.0) in men and 32.5% (27.0-37.9) vs 16.7% (13.6-19.7) in women. Prevalence of physical inactivity during leisure time was 31.9 % (28.7-35.1) in men and 41.4% (38.2-44.7) in women. Both in men and women the prevalence of obesity was significantly higher in the Southern regions, likewise physical inactivity. Conclusions: Preliminary data of the first 8 Regions (out of 10 to be examined in the on-going survey) underline that more than half of Italian adults are in excess of weight. In comparison to data measured within the CUORE Project 10 years earlier, a slight increasing of normal weight men seems to occur moving in the direction of the WHO-NCDs obesity target.
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- 2020
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44. Abstract P352: Trend of Salt Consumption in Italy From 2008 to 2018: Preliminary Results of the Cuore Project
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Cinzia Lo Noce, Ornella Russo, Simona Giampaoli, Daniela Minutoli, Daniela Galeone, Brigitta Buttari, Luigi Palmieri, Paolo Bellisario, Anna Di Lonardo, Elisabetta Profumo, Pasquale Strazzullo, and Chiara Donfrancesco
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Consumption (economics) ,education.field_of_study ,business.industry ,Sodium ,Population ,chemistry.chemical_element ,Toxicology ,CUORE ,chemistry ,Physiology (medical) ,Action plan ,Medicine ,Cardiology and Cardiovascular Medicine ,education ,business - Abstract
Introduction: The WHO Global Action Plan for the Prevention of Non-Communicable Diseases (NCDs) recommends a 30% relative reduction in mean population intake of salt/sodium. To this end, the Italian Ministry of Health (MoH) has strengthened prevention and health promotion through the “Gaining health: making healthy choices easy” Programme and the National Preventive Plan (NPP) 2014-2019, with the collaboration of the Interdisciplinary Working group for Salt Reduction in Italy (GIRCSI). Hypothesis: Agreements between the MoH and the associations of artisan bakers and food industry companies were signed since 2009 to reduce the salt content in bread and in other food products. Within the NPP, initiatives as local inter-sectors agreements and information activities for the population and training for food sector operators are implemented. In order to estimate the habitual salt intake and its trend in the general adult population, national surveys, funded by the MoH-CCM, are conducted within the CUORE Project. Methods: Baseline salt intake by the use of 24h urine collections was assessed in 2008-2012 from random samples of persons aged 35-79 years, resident in all Italian 20 Regions. A new survey is ongoing (2018-2019) involving random samples of persons aged 35-74 years, resident in 10 Regions. Urinary sodium excretion is assayed by a central lab at Federico II University of Naples, subjected to strict quality controls. Comparisons are made considering, for both periods, the seven regions examined up to now in the ongoing survey and the age range of 35-74 years. Results: Within the 2018-2019 survey, mean level of sodium chloride per day in 673 men and 709 women was 161 mmol (95% confidence interval: 156-166 mmol) and 122 mmol (119-126 mmol) respectively, whereas in the 2008-2012 survey the corresponding mean levels in 642 men and 627 women was 183 mmol (95% confidence interval: 178-189 mmol) and 140 mmol (135-144 mmol), respectively. A sodium chloride intake level within the WHO recommended upper level of 85 mmol (or 5 grams of salt) per day was detected in 9% (6-11%) of men and 24% (20-27%) of women examined in 2018-2019 vs 5% (3-6%) of men and 16% (13-19%) of women examined in 2008-2012. Conclusions: These preliminary data show that the average habitual sodium intake in Italy is still largely higher than recommended but a significant reduction seems to occur. These results fully justify and encourage the ongoing preventive initiatives for reduction of sodium intake and its monitoring in the population.
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- 2020
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45. Abstract P556: Blood Pressure in the Italian Adult Population: Preliminary Results of the 2018-2019 Cuore Project-Health Examination Survey
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Brigitta Buttari, Luigi Palmieri, Pasquale Strazzullo, Serena Vannucchi, Cinzia Lo Noce, Paolo Bellisario, Simona Giampaoli, Anna Di Lonardo, Chiara Donfrancesco, Elisabetta Profumo, and Daniela Minutoli
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medicine.medical_specialty ,business.industry ,Adult population ,medicine.disease ,Haemorrhagic stroke ,Health examination ,Blood pressure ,CUORE ,Physiology (medical) ,Epidemiology ,Emergency medicine ,medicine ,Risk factor ,Cardiology and Cardiovascular Medicine ,business ,Kidney disease - Abstract
Introduction: Hypertension is a major risk factor for coronary heart disease, chronic kidney disease, ischaemic and haemorrhagic stroke. The WHO Global Action Plan for the Prevention of non-communicable diseases (NCDs) target by 2025 for hypertension is a 25% relative reduction in the prevalence of raised blood pressure. Hypothesis: Prevalence of raised blood pressure in adults has declined in high-income countries over the past few decades; the CUORE project surveys have shown this trend also in Italy from the 1980s to the 2010s. This preliminary analysis aims to assess mean level of blood pressure and prevalence of raised blood pressure in the Italian general adult population using the data collected within the CUORE Project-health examination survey. Methods: Within the ongoing survey, started in 2018, mean of blood pressure and prevalence of raised blood pressure are assessed in random samples of resident population, aged 35-74 years, stratified by age and sex (men 822 and women 869), from 8 Italian Regions from the Northern, Central and Southern Italy. Blood pressure is measured three times consecutively by automated oscillometric device using standardized procedures and methods. Mean level of first two measurements are here considered. Raised blood pressure is defined as systolic and/or diastolic blood pressure equal or greater than 140/90 mmHg or under specific drug treatment. The survey is funded by the Italian Ministry of Health-CCM. Results: Preliminary analysis shows a mean value of systolic blood pressure of 131 mmHg (95% C.I.130-132) in men and 122 mmHg (121-123) in women. Mean value of diastolic blood pressure is 77 mmHg (76-78) in men and 73 mmHg (72-74) in women. Prevalence of raised blood pressure is 43.3% (39.9-46.7) in men and 32.4% (29.2-35.5) in women. In men prevalence of persons with raised blood pressure and untreated is 18.5% (14.6-22.3) and 8.6% (5.4-11.7) in women. In men and women prevalence of raised blood pressure is significantly higher in the Southern regions. Conclusions: Preliminary data of first 8 Regions (out of 10 which should be examined) underline that raised blood pressure is widely present in the Italian adult population. In comparison to data measured within the CUORE Project 10 years earlier, a decrease of mean level of blood pressure and prevalence of raised blood pressure seems to occur facilitating the meeting of WHO-NCDs target.
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- 2020
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46. Monitoring of obesity in the Italian adult population: preliminary results of 1998-2018 trend
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Diego Vanuzzo, Daniela Minutoli, Simona Giampaoli, Brigitta Buttari, Chiara Donfrancesco, C Lo Noce, Elisabetta Profumo, A Di Lonardo, Paolo Bellisario, and Luigi Palmieri
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business.industry ,Public Health, Environmental and Occupational Health ,Adult population ,Medicine ,business ,medicine.disease ,Obesity ,Demography - Abstract
Background Obesity is a risk factor for the majority of non-communicable diseases-NCDs. In the Italian country profile, the NCD Risk Factor Collaboration estimated the 2010 obesity prevalence at 19.0% (95% confidence interval - C.I. 15.7-22.7) in women aged 18 years and over and 18.5% (95% C.I. 15.1-22.0) in men, with a very low probability (2-9%) of halting the increase of obesity by 2025 (WHO global obesity target). This preliminary analysis aims to assess 20 years trend of BMI and obesity in the Italian general adult population using the data collected within the CUORE Project. Methods Mean of BMI and prevalence of obesity (BMI > =30 kg/m2) in random samples of resident population in 6 Italian Regions, aged 35-74 years, stratified by age and sex, were assessed in an on-going survey started in 2018 (men 612; women 649), and compared to those assessed in the same Regions in 1998-2002 (men 1933, women 1926) and in 2008-2012 (men 1306; women 1318). Weight and height were measured using standardized methodologies. Surveys were partly funded by the Italian Ministry of Health-CCM and approved by the National Institute of Health ethical committee. Results In men, mean values of BMI resulted 26.6 kg/m2 (95% C.I. 26.4-26.8) in 1998 survey, 27.5 (27.2-27.7) in 2008 and 26.5 (26.1-26.8) in 2018; prevalence of obesity was 16.8% (95% C.I. 15.1-18.4) in 1998, 23.5% (21.2-25.8) in 2008 and 17.3% (14.4-20.4) in 2018. In women mean values of BMI were 26.1 kg/m2 (95% C.I.: 25.9-26.4) in 1998, 26.4 (26.1-26.7) in 2008 and 25.5 (25.1-25.9) in 2018; prevalence of obesity was 20.7% (95% C.I.: 18.9-22.5), 21.9% (19.7-24.2) and 19.0% (15.9-22.0) respectively. Conclusions Preliminary data of first 6 Regions (out of 10 to be examined in the on-going survey) suggest that mean BMI and prevalence of obesity in Italian adult population are still very high; if confirmed, in the last ten years a reduction seems to be occurred increasing the probability of meeting the WHO obesity target by 2025. Key messages Mean BMI and prevalence of obesity in Italian adult population are still high. If confirmed, in the last ten years a reduction of mean BMI and prevalence of obesity in Italian adult population seems to be occurred.
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- 2019
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47. Phenotypical and functional abnormalities of circulating neutrophils in patients with β-thalassemia
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Sara Massimi, Marco Gabbianelli, Brigitta Buttari, Laura Maffei, Elisabetta Profumo, Patrizia Caprari, Francesco Sorrentino, and Rachele Riganò
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Adult ,Male ,congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,Anemia ,Neutrophils ,Thalassemia ,Blood Component Transfusion ,CD16 ,Iron Chelating Agents ,Neutrophil Activation ,Immunophenotyping ,03 medical and health sciences ,Leukocyte Count ,Young Adult ,0302 clinical medicine ,Immune system ,Antigens, CD ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Humans ,Cellular Senescence ,Respiratory Burst ,Hematology ,Innate immune system ,business.industry ,beta-Thalassemia ,General Medicine ,Middle Aged ,medicine.disease ,Chelation Therapy ,Respiratory burst ,Toll-Like Receptor 4 ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Immunology ,Ferritins ,Splenectomy ,Female ,Bone marrow ,Lipid Peroxidation ,business ,030215 immunology - Abstract
β-Thalassemia is an inherited single gene disorder related to reduced synthesis of the β-globin chain of hemoglobin. Patients with β-thalassemia present variable clinical severity ranging from asymptomatic trait to severe transfusion-dependent anemia and multiple organs complications. Moreover, multiple immune abnormalities are a major concern in β-thalassemia patients. Aberrant neutrophil effector function plays a pivotal role in infection susceptibility in these patients. In severe and persistent inflammation, immature neutrophils are released from the bone marrow and are functionally different compared with mature ones. Despite some abnormalities reported for thalassemia patient's immune system, few data exist on the characterization of human neutrophils in β-thalassemia. The aim of this study was to investigate the phenotype and function of circulating neutrophil subsets in patients with β-thalassemia major and with β-thalassemia intermedia divided in transfusion-dependent and non-transfusion-dependent. By the use of immunochemical and cytofluorimetric analyses, we observed that patients' CD16+ neutrophils exhibit abnormalities in their phenotype and functions and the abnormalities vary according to the clinical form of the disease and to the neutrophil subset (CD16bright and CD16dim). Abnormalities include altered surface expression of the innate immune receptor CD45, Toll-like receptor 4, and CD32, reduced ability to produce an oxidative burst, and elevated levels of membrane lipid peroxidation, especially in patients with a more severe form of the disease. Overall, our results indicating the occurrence of an immuno-senescent phenotype on circulating neutrophils from thalassemia patients suggest the usefulness of neutrophil feature assessment as a tool for better clinical management of β-thalassemia.
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- 2019
48. Pharmacological Protection against Ischemia-Reperfusion Injury by Regulating the Nrf2-Keap1-ARE Signaling Pathway
- Author
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Luciano Saso, Gulberk Ucar, Elisabetta Profumo, Bercis Imge Ucar, Sarmistha Saha, and Brigitta Buttari
- Subjects
0301 basic medicine ,Physiology ,DNA damage ,ischemia-reperfusion injury ,Clinical Biochemistry ,Ischemia ,Context (language use) ,Inflammation ,Review ,RM1-950 ,medicine.disease_cause ,Biochemistry ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Molecular Biology ,business.industry ,Cell Biology ,medicine.disease ,nrf2 activators ,nrf2/keap1/are signaling pathway ,KEAP1 ,Cell biology ,030104 developmental biology ,Nrf2 activators ,030220 oncology & carcinogenesis ,Therapeutics. Pharmacology ,Signal transduction ,medicine.symptom ,business ,Nrf2/Keap1/ARE signaling pathway ,Reperfusion injury ,Oxidative stress - Abstract
Ischemia/reperfusion (I/R) injury is associated with substantial clinical implications, including a wide range of organs such as the brain, kidneys, lungs, heart, and many others. I/R injury (IRI) occurs due to the tissue injury following the reestablishment of blood supply to ischemic tissues, leading to enhanced aseptic inflammation and stimulation of oxidative stress via reactive oxygen and nitrogen species (ROS/RNS). Since ROS causes membrane lipids’ peroxidation, triggers loss of membrane integrity, denaturation of proteins, DNA damage, and cell death, oxidative stress plays a critical part in I/R pathogenesis. Therefore, ROS regulation could be a promising therapeutic strategy for IRI. In this context, Nrf2 (NF-E2-related factor 2) is a transcription factor that regulates the expression of several factors involved in the cellular defense against oxidative stress and inflammation, including heme oxygenase-1 (HO-1). Numerous studies have shown the potential role of the Nrf2/HO-1 pathway in IRI; thus, we will review the molecular aspects of Nrf2/Kelch-like ECH-associated protein 1 (Keap1)/antioxidant response element (ARE) signaling pathway in I/R, and we will also highlight the recent insights into targeting this pathway as a promising therapeutic strategy for preventing IRI.
- Published
- 2021
- Full Text
- View/download PDF
49. An Overview of Nrf2 Signaling Pathway and Its Role in Inflammation
- Author
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Luciano Saso, Brigitta Buttari, Emiliano Panieri, Elisabetta Profumo, and Sarmistha Saha
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Keap1 ,NF-E2-Related Factor 2 ,Pharmaceutical Science ,Context (language use) ,Inflammation ,Review ,medicine.disease_cause ,Nrf2 ,Analytical Chemistry ,Structure-Activity Relationship ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,inflammation ,oxidative stress ,polyphenols ,Drug Discovery ,medicine ,Animals ,Humans ,Macrophage ,Physical and Theoretical Chemistry ,Transcription factor ,030304 developmental biology ,0303 health sciences ,Kelch-Like ECH-Associated Protein 1 ,biology ,Organic Chemistry ,NF-kappa B ,respiratory system ,KEAP1 ,Ubiquitin ligase ,Cell biology ,Oxidative Stress ,Gene Expression Regulation ,Chemistry (miscellaneous) ,030220 oncology & carcinogenesis ,biology.protein ,Molecular Medicine ,Disease Susceptibility ,medicine.symptom ,Oxidation-Reduction ,Biomarkers ,Oxidative stress ,Protein Binding ,Signal Transduction - Abstract
Inflammation is a key driver in many pathological conditions such as allergy, cancer, Alzheimer’s disease, and many others, and the current state of available drugs prompted researchers to explore new therapeutic targets. In this context, accumulating evidence indicates that the transcription factor Nrf2 plays a pivotal role controlling the expression of antioxidant genes that ultimately exert anti-inflammatory functions. Nrf2 and its principal negative regulator, the E3 ligase adaptor Kelch-like ECH- associated protein 1 (Keap1), play a central role in the maintenance of intracellular redox homeostasis and regulation of inflammation. Interestingly, Nrf2 is proved to contribute to the regulation of the heme oxygenase-1 (HO-1) axis, which is a potent anti-inflammatory target. Recent studies showed a connection between the Nrf2/antioxidant response element (ARE) system and the expression of inflammatory mediators, NF-κB pathway and macrophage metabolism. This suggests a new strategy for designing chemical agents as modulators of Nrf2 dependent pathways to target the immune response. Therefore, the present review will examine the relationship between Nrf2 signaling and the inflammation as well as possible approaches for the therapeutic modulation of this pathway.
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- 2020
- Full Text
- View/download PDF
50. Oxidative Stress Induces HSP90 Upregulation on the Surface of Primary Human Endothelial Cells: Role of the Antioxidant 7,8-Dihydroxy-4-methylcoumarin in Preventing HSP90 Exposure to the Immune System
- Author
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Lavinia Tinaburri, Rita Businaro, Antonio Facchiano, Virinder S. Parmar, Brigitta Buttari, Tina Garofalo, Brajendra K. Singh, Daniela D'Arcangelo, Rachele Riganò, Luciano Saso, Prashant Kumar, Maurizio Sorice, Elisabetta Profumo, and Antonella Capozzi
- Subjects
0301 basic medicine ,Article Subject ,medicine.disease_cause ,Umbilical vein ,Antioxidants ,03 medical and health sciences ,Immune system ,Downregulation and upregulation ,Coumarins ,Heat shock protein ,cell biology ,medicine ,biochemistry ,Humans ,Secretion ,HSP90 Heat-Shock Proteins ,lcsh:QH573-671 ,biology ,Chemistry ,lcsh:Cytology ,aging ,Endothelial Cells ,General Medicine ,Hsp90 ,Cell biology ,Up-Regulation ,Oxidative Stress ,030104 developmental biology ,biology.protein ,Protein A ,Oxidative stress ,Research Article - Abstract
We have previously demonstrated that human heat shock protein 90 (HSP90), an intracellular self protein, is the target of cellular and humoral autoimmune responses in patients with carotid atherosclerosis. In this study, we evaluated in vitro whether oxidative stress, a feature of atherosclerotic plaque, alters HSP90 expression in endothelial cells, thus inducing surface localization of this molecule and whether the antioxidant compound 7,8-dihydroxy-4-methylcoumarin (7,8-DHMC) is able to prevent oxidative stress-induced alterations of HSP90 localization. By the use of flow cytometry, immunofluorescence, enzyme-linked immunosorbent assay, and semiquantitative reverse-transcription polymerase chain reaction, we demonstrated that exposure of human umbilical vein endothelial cells (HUVEC) to the prooxidant compound H2O2 upregulated HSP90 surface expression and reduced its secretion without altering HSP90 gene expression and intracytoplasmic protein levels. Pretreatment of HUVEC with 7,8-DHMC prevented H2O2-induced alterations of HSP90 cellular distribution and secretion. Our results suggest that the strong oxidative conditions of atherosclerotic plaques promote the upregulation of HSP90 surface expression on endothelial cells, thus rendering the protein a possible target of autoimmune reactions. The antioxidant 7,8-DHMC, by preventing oxidative-stress-triggered HSP90 surface upregulation, may be useful to counteract possible autoreactive reactions to HSP90.
- Published
- 2018
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