493 results on '"Piras A."'
Search Results
2. Endoscopic transorbital approach for recurrent spheno-orbital meningiomas: single center case series.
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Ricciuti, V., Peppucci, E., Montalbetti, A., Piras, G., Spena, G., Giussani, C. G., and Zoia, C.
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PATIENT selection ,PATIENTS' rights ,SKULL base ,VISUAL acuity ,CEREBROSPINAL fluid ,ENDOSCOPIC surgery - Abstract
Endoscopic transorbital approaches (ETOAs) are finding wide application for skull base lesions, particularly for spheno-orbital meningiomas (SOMs). These tumors have high recurrence rates, and second surgery can often represent a challenge. In this study we analyze our experience of management of recurrent SOMs through a slightly modified eyelid crease approach. Between May 2016 and September 2023, in the Department of Neurosurgery of Fondazione IRCCS Policlinico San Matteo (Pavia, Italy), five consecutive recurrent SOMs have been treated using an endoscopic transorbital approach. Demographic data, preoperatory deficits, lesions characteristics, histology, grade of resection, eventual adjuvant treatments, complications, outcome in terms of symptoms improvement and cosmesis, and hospitalization are described. One patient maintained a right lateral rectus muscle palsy that was already present in the preoperatory, no cerebrospinal fluid (CSF) leaks were reported. All patients had postoperative periorbital edema, but no other systemic complication was found. All patients had proptosis improvement, two had visual acuity improvement, and best cosmetic outcome was obtained in all cases. Hospitalization varied between 4 and 6 days. ETOAs in the management of recurrent SOMs are safe and have good outcome. Right selection of patients is mandatory, but when feasible, endoscopic surgery can allow a virgin route to a previously operated tumor, guaranteeing a good strategic option. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Funding sources, colonial legacy, and new firms’ creation in Africa.
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Massidda, C. and Piras, R.
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This study examines the determinants of new firm creation in Africa, focusing on external and internal funding sources and their interactions. It also explores the influence of colonial history by separately analyzing former British and French colonies. The primary goal is to help fill crucial gaps in African literature on the determinants of entrepreneurship. Given Africa's widespread poverty and underdevelopment, understanding what drives entrepreneurship is essential for job creation and economic growth. The study reveals three key findings. First, at the full sample level, remittances are the only external financing source positively associated with new firm creation, while foreign aid and foreign direct investment obstacle it. Internal sources, like savings and credit, do not show significant effects. Second, the subsample analysis reveals heterogeneous results: former British colonies' funding sources align with the overall findings, while in former French colonies, only savings support entrepreneurship. Third, considering control variables, the subsample analysis indicates two distinct entrepreneurship models: opportunity-based in former British colonies and necessity-based in former French colonies. These findings are noteworthy and provide significant policy implications at both national and international levels. Crucially, the positive role of remittances in financing new business initiatives, confirms that migration serves as a mutually beneficial arrangement for both sending African countries and the host countries. [ABSTRACT FROM AUTHOR]
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- 2024
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4. The wounding potential of assault rifles: analysis of the dimensions of entrance and exit wounds and comparison with conventional handguns. A multicentric study.
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Manta, Anna Maria, Petrasso, Pia Eugenia Ylenia, Tomassini, Luca, Piras, Gianluca Niccolò, De Maio, Alessandro, Cappelletti, Simone, Straccamore, Marco, Siodambro, Chiara, De Simone, Stefania, Peonim, Vichan, Cipolloni, Luigi, Fulginiti, Laura, Oliva, Antonio, Worasuwannarak, Wisarn, Fineschi, Vittorio, and Ciallella, Costantino
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ASSAULT rifles ,ENTRANCES & exits ,FORENSIC pathologists ,CRIMINAL investigation ,PROJECTILES ,GUNSHOT wounds - Abstract
The appearance of a gunshot wound (GSW) is greatly influenced by the velocity of the projectile, where high-velocity projectiles (HVPs) are defined as ballistic agents reaching a muzzle velocity of > 600 m/s fired from assault rifles. The aim of the study is to present and explain the differences in the dimensions of entrance and exit wounds between the most used handguns and assault rifles and to propose a predictor of HVP, i.e., the ratio of exit and entrance wounds (EX/ENR). The surface area of entrance and exit GSWs and the EX/ENR were calculated. 66 perforating GSWs produced by NATO FMJ 7.62 × 52 mm and 5.56 × 42 mm fired from assault rifles were assigned to the HVP, while 64 lesions produced by conventional projectiles fired from revolvers and semi-automatic pistols were assigned to the low-velocity projectile (LVP) group. The dimensions of the exit wounds of the HVP group were significantly higher when compared to the LVP group (95% CI 0.9886–2.423, p < 0.05). The HVP group showed significantly higher values for the EX/ENR when compared to the LVP group (95% CI 2.617–7.173, p < 0.05). The evaluation of the EX/ENR can be considered an adequate tool to assess the type of weapon involved and to roughly estimate the associated wounding mechanisms, which can guide both the physician in the management and treatment of the patients affected by GSW, and the forensic pathologist in crime investigation. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Multi-omics characterization of the monkeypox virus infection.
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Huang, Yiqi, Bergant, Valter, Grass, Vincent, Emslander, Quirin, Hamad, M. Sabri, Hubel, Philipp, Mergner, Julia, Piras, Antonio, Krey, Karsten, Henrici, Alexander, Öllinger, Rupert, Tesfamariam, Yonas M., Dalla Rosa, Ilaria, Bunse, Till, Sutter, Gerd, Ebert, Gregor, Schmidt, Florian I., Way, Michael, Rad, Roland, and Bowie, Andrew G.
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MONKEYPOX ,VACCINIA ,VIRAL proteins ,VIRUS diseases ,DRUG target - Abstract
Multiple omics analyzes of Vaccinia virus (VACV) infection have defined molecular characteristics of poxvirus biology. However, little is known about the monkeypox (mpox) virus (MPXV) in humans, which has a different disease manifestation despite its high sequence similarity to VACV. Here, we perform an in-depth multi-omics analysis of the transcriptome, proteome, and phosphoproteome signatures of MPXV-infected primary human fibroblasts to gain insights into the virus-host interplay. In addition to expected perturbations of immune-related pathways, we uncover regulation of the HIPPO and TGF-β pathways. We identify dynamic phosphorylation of both host and viral proteins, which suggests that MAPKs are key regulators of differential phosphorylation in MPXV-infected cells. Among the viral proteins, we find dynamic phosphorylation of H5 that influenced the binding of H5 to dsDNA. Our extensive dataset highlights signaling events and hotspots perturbed by MPXV, extending the current knowledge on poxviruses. We use integrated pathway analysis and drug-target prediction approaches to identify potential drug targets that affect virus growth. Functionally, we exemplify the utility of this approach by identifying inhibitors of MTOR, CHUK/IKBKB, and splicing factor kinases with potent antiviral efficacy against MPXV and VACV. Multi-omics profiling of monkeypox virus infected human primary cells was used to characterize the infection process and to prioritize potential antiviral drug targets. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Pediatric Cholesteatoma: An Overview of Presentation, Surgical Strategy and Outcomes of an Individualized Approach.
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Udayabhanu, H.N, Gianluca, Piras, Ashish, Chandra Agarwal, Enrico, Pasanisi, Diana, Vlad, Abdelkader, Taibah, and Mario, Sanna
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SKULL surgery , *OPERATIVE surgery , *THERAPEUTICS , *SKULL base , *MASTOIDECTOMY - Abstract
Pediatric cholesteatomas (PC) have multifactorial aetiology, spread aggressively and there are high chances of residual/ recurrent disease after treatment. The surgical technique to manage this entity has been debatable. This study was done to (i) enumerate the presentation of PC and the surgical techniques adopted (ii) analyse the outcomes viz., residual/ recurrence rates and hearing results. A cross sectional record based study was done on 618 cases of PC operated between 1983 and 2015, at a centre dedicated to otology and lateral skull base surgery. The data which was maintained on the basis of clinical and peri- operative findings was analysed. Otorrhea (59.2%) and hearing loss (54.2%) were the common symptoms. The surgeries done were: canal wall up (CWU) (44.3%), canal wall down (CWD) (41.1%), modified bondy's mastoidectomy (5.7%), radical mastoidectomy (4.9%), trans canal excision (1.8%) and subtotal petrosectomy (2.3%). The residual and recurrence rates were 12.6% and 7.9% respectively. A significant difference between the pre and post operative hearing was observed. The mean improvement in air bone gap was 7.7db. Residual/ recurrent disease were higher in CWU as compared to CWD group. The surgery should be individualised so that the patient remains disease free. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Comparison of Different Parallel Transport Methods for the Study of Deformations in 3D Cardiac Data.
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Piras, Paolo, Guigui, Nicolas, and Varano, Valerio
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Comparing the deformations of different beating hearts is a challenging operation. As in clinics the impaired condition is often recognized upon (local and global) deformation parameters, the particular nature of heart deformation during one beat can be compared among different individuals in the same ordination space more effectively if initial inter-individual form (shape + size) differences are filtered out. This is even more true if the shape of cardiac trajectory itself is under consideration. This need is satisfied by applying a geometric machinery named "parallel transport" in the field of differential geometry. In recent years several parallel transport methods have been applied to cardiological data acquired via echocardiography, CT scan or magnetic resonance. Concomitantly, some efforts were made for comparing different parallel transport algorithms applied to a variety of toy examples and real deformational data. Here we face the problem of comparing the heavily used LDDMM parallel transport with the recently proposed Riemannian "TPS space" in the context of the deformation of the right ventricle. Using local tensors diagnostics and global energy-based and shape distance-based parameters, we explored the maintenance of original deformations in transported data in four systo-diastolic deformations belonging to one healthy subject and three individuals affected by tetralogy of Fallot, atrial septal defect and pulmonary hypertension. We also do the same in a larger dataset relative to the left ventricle of 82 heathly subjects and 21 patients affected by hypertrophic cardiomyopathy. We also do the same in a larger dataset relative to the left ventricle of 82 heathly subjects and 21 patients affected by hypertrophic cardiomyopathy. In particular, we contrasted the TPS space with classic LDDMM and a modified LDDMM able to manage spherical differences. Our results point toward a neat superiority of TPS space over classic LDDMM. The modified LDDMM performs similarly as it maintains better the chosen diagnostics. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Tumor progression in tympanojugular paragangliomas: the role of radiotherapy and wait and scan.
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Fancello, Giuseppe, Fancello, Virginia, Ehsani, Diana, Porpiglia, Vincenzo, Piras, Gianluca, Caruso, Antonio, and Sanna, Mario
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PARAGANGLIOMA ,CANCER invasiveness ,INTERNAL carotid artery ,TUMOR classification ,CRANIAL nerves ,PATIENT selection - Abstract
Introduction: Tympanojugular paragangliomas (TJ PGLs) are rare tumors characterized by bone infiltration and erosion and a close relationship with critical structures, such as cranial nerves and internal carotid artery. For these reasons, their management represents a tough challenge. Since the fifties, radio-therapy (RT) has been proposed as an alternative treatment aimed at avoiding tumor progression. However, the indolent nature of the tumor, characterized by slow growth, is a crucial factor that needs to be considered before offering radiation. Methods: This study aims to examine tumor progression in RT patients through a systematic review of the literature and in TJ PGL patients who underwent solely wait and scan at our department. Results: The rate of tumor progression in the RT group was 8.9%, while in the wait and scan cohort was 12.9%. This data suggests the innate slow growth of PGLs. However, it is not possible to draw certain conclusions because of the wide heterogeneity of the studies. Conclusion: When complete surgical excision of TJ PGLs is not feasible, appropriate counseling and patient selection, including comprehensive tumor classification, should be performed before proposing RT to control tumor progression, since wait and scan may represent a reasonable option in selected cases. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Feasibility, safety, and efficacy of a new percutaneous interspinous device: a retrospective multicenter study.
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Marcia, Stefano, Hirsch, Joshua Adam, Bellini, Matteo, Sadotti, Giulia, Manfré, Luigi, De Vivo, Aldo Eros, Piras, Emanuele, Zini, Giacomo, and Zini, Chiara
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PHYSICAL diagnosis ,PROSTHETICS ,PATIENT safety ,LOCAL anesthesia ,MEDICAL errors ,PILOT projects ,COMPUTED tomography ,SPINAL stenosis ,TREATMENT effectiveness ,RETROSPECTIVE studies ,MAGNETIC resonance imaging ,DESCRIPTIVE statistics ,ARTIFICIAL implants ,MINIMALLY invasive procedures ,SURGICAL equipment ,ELECTROMYOGRAPHY ,PRE-tests & post-tests ,MEDICAL records ,ACQUISITION of data ,RESEARCH ,MEDICAL equipment reliability ,FLUOROSCOPY ,ANESTHESIA ,EVALUATION - Abstract
Purpose: To evaluate safety and efficacy of the novel percutaneous interspinous device (PID) for the treatment of symptomatic degenerative lumbar spinal stenosis (DLSS) in 3 different centers. Methods: From November 2016 to March 2020, 255 patients (male 125, mean age 71.2 years old range 49–91 years old) with neurogenic claudication, confirmed by electromyography, related to mono or bi-segmental lumbar central canal and/or foraminal stenosis were enrolled in the study. Magnetic resonance (MR) and/or computer tomography (CT), physical exam, and Visual Analogue Scale (VAS) and Zurich Claudication Questionnaire (ZCQ) were performed before and 6 months after the procedure. All treatments were performed under fluoroscopic guidance with local anesthesia and mild sedation. Technical success was defined as correct placement of the Lobster® (Demetrios Medical, Firenze, Italy) PID as demonstrated by computer tomography (CT) performed immediately after treatment; spinoplasty was performed in selected patients. Results: PID placement was accomplished with a 99.6% success rate (257/258). The one device that was not implanted was due to a spinous process fracture. In 28 patients, more than 1 device was implanted in the same session (max 3 PIDs); 6 patients required a second implant in different session. A total of 172 prophylactic spinoplasties were performed (59.3%). No major complications occurred; 3 device misplacements were successfully treated with percutaneous retrieval and new device deployment. 99.6% of patients experienced clinical improvement. Conclusion: Lobster PID is an effective and safe minimally invasive decompression method for central canal and neural foraminal stenosis when patients are correctly selected. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Nails as optimal source of DNA for molecular identification of 5 decomposed bodies recovered from seawater: from Y-ancestry to personal identification.
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Della Rocca, Chiara, Chighine, Alberto, Piras, Gavino, Vecchio, Cesare, and Mameli, Alessandro
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DNA fingerprinting ,NAILS (Anatomy) ,SEAWATER ,ARCHAEOLOGICAL human remains ,MICROSATELLITE repeats ,Y chromosome - Abstract
Molecular identification of extremely compromised human remains in forensic field is usually performed from DNA typing of bones, which are a difficult sample to work with. Moreover, autosomal STR profiles do not always result in the identification of the donor due to lack of comparisons or non-hit throughout database searching. An attempt to overcome these issues is represented by fingernails as an alternative DNA source and Y-STRs typing to infer both geographical and familial ancestry of the unknown donor. In this study, we analyzed both 24 autosomal and 27 Y-chromosome STRs from unidentified human remains (UHRs) of five males recovered from the water near the southwestern coast of Sardinia by the Italian Harbor Master's Office. Nail clippings provided an optimal source of autologous DNA for molecular identification in a very short time, producing complete autosomal and Y-STR profiles even under conditions of high body degradation. Unfortunately, no match neither compatibility occurred using autosomal STRs (aSTRs), initially. Upon analyzing the Y-haplotypes, we found out they had already been observed in northern Africa, providing us important investigative leads. This prompted the International Criminal Police Organization (INTERPOL) to provide us with references of alleged relatives that were then confirmed to be related. The use of fingernails represents an excellent DNA source especially for genetic identification of decomposed bodies recovered in seawater environment. Notably, DNA extracted from nails gave high-quality Y-STR haplotypes by which predicting paternal ancestry of the unidentified donors may result fundamental in the forensic investigative context. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Insulin Use During Gestational and Pre-existing Diabetes in Pregnancy: A Systematic Review of Study Design.
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Castorino, Kristin, Osumili, Beatrice, Lakiang, Theophilus, Banerjee, Kushal Kumar, Goldyn, Andrea, and Piras de Oliveira, Carolina
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GESTATIONAL diabetes ,INSULIN therapy ,PREGNANCY outcomes ,TYPE 1 diabetes ,TYPE 2 diabetes ,HYPERGLYCEMIA - Abstract
Introduction: Insulin is the first-line pharmacologic therapy for women with diabetes in pregnancy. However, conducting well-designed randomized clinical trials (RCTs) and achieving recommended glycemic targets remains a challenge for this unique population. This systematic literature review (SLR) aimed to understand the evidence for insulin use in pregnancy and the outcome metrics most often used to characterize its effect on glycemic, maternal and fetal outcomes in gestational diabetes mellitus (GDM) and in pregnant women with diabetes. Methods: An SLR was conducted using electronic databases in Medline, EMBASE via Ovid platform, evidence-based medicine reviews (2010–2020) and conference proceedings (2018–2019). Studies were included if they assessed the effect of insulin treatment on glycemic, maternal or fetal outcomes in women with diabetes in pregnancy. Studies on any type of diabetes other than gestational or pre-existing diabetes as well as non-human studies were excluded. Results: In women diagnosed with GDM or pre-existing diabetes, most studies compared treatment of insulin with metformin (n = 35) followed by diet along with lifestyle intervention (n = 24) and glibenclamide (n = 12). Most studies reporting on glycemic outcomes compared insulin with metformin (n = 22) and glibenclamide (n = 4). Fasting blood glucose was the most reported clinical outcome of interest. Among the studies reporting maternal outcomes, method of delivery and delivery complications were most commonly reported. Large for gestational age, stillbirth and perinatal mortality were the most common fetal outcomes reported. Conclusion: This SLR included a total of 108 clinical trials and observational studies with diverse populations and treatment arms. Outcomes varied across the studies, and a lack of consistent outcome measures to manage diabetes in pregnant women was observed. This elucidates a need for global consensus on study design and standardized clinical, maternal and fetal outcomes metrics. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Radiomics-enhanced early regression index for predicting treatment response in rectal cancer: a multi-institutional 0.35 T MRI-guided radiotherapy study.
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Boldrini, Luca, Chiloiro, Giuditta, Cusumano, Davide, Yadav, Poonam, Yu, Gao, Romano, Angela, Piras, Antonio, Votta, Claudio, Placidi, Lorenzo, Broggi, Sara, Catucci, Francesco, Lenkowicz, Jacopo, Indovina, Luca, Bassetti, Michael F., Yang, Yingli, Fiorino, Claudio, Valentini, Vincenzo, and Gambacorta, Maria Antonietta
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Purpose: The accurate prediction of treatment response in locally advanced rectal cancer (LARC) patients undergoing MRI-guided radiotherapy (MRIgRT) is essential for optimising treatment strategies. This multi-institutional study aimed to investigate the potential of radiomics in enhancing the predictive power of a known radiobiological parameter (Early Regression Index, ERI
TCP ) to evaluate treatment response in LARC patients treated with MRIgRT. Methods: Patients from three international sites were included and divided into training and validation sets. 0.35 T T2*/T1-weighted MR images were acquired during simulation and at each treatment fraction. The biologically effective dose (BED) conversion was used to account for different radiotherapy schemes: gross tumour volume was delineated on the MR images corresponding to specific BED levels and radiomic features were then extracted. Multiple logistic regression models were calculated, combining ERITCP with other radiomic features. The predictive performance of the different models was evaluated on both training and validation sets by calculating the receiver operating characteristic (ROC) curves. Results: A total of 91 patients was enrolled: 58 were used as training, 33 as validation. Overall, pCR was observed in 25 cases. The model showing the highest performance was obtained combining ERITCP at BED = 26 Gy with a radiomic feature (10th percentile of grey level histogram, 10GLH) calculated at BED = 40 Gy. The area under ROC curve (AUC) of this combined model was 0.98 for training set and 0.92 for validation set, significantly higher (p = 0.04) than the AUC value obtained using ERITCP alone (0.94 in training and 0.89 in validation set). Conclusion: The integration of the radiomic analysis with ERITCP improves the pCR prediction in LARC patients, offering more precise predictive models to further personalise 0.35 T MRIgRT treatments of LARC patients. [ABSTRACT FROM AUTHOR]- Published
- 2024
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13. Associations between antipsychotics-induced weight gain and brain networks of impulsivity.
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Grosu, Claire, Klauser, Paul, Dwir, Daniella, Khadimallah, Ines, Alemán-Gómez, Yasser, Laaboub, Nermine, Piras, Marianna, Fournier, Margot, Preisig, Martin, Conus, Philippe, Draganski, Bogdan, and Eap, Chin B.
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- 2024
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14. Metabolic targeting of cancer associated fibroblasts overcomes T-cell exclusion and chemoresistance in soft-tissue sarcomas.
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Broz, Marina T., Ko, Emily Y., Ishaya, Kristin, Xiao, Jinfen, De Simone, Marco, Hoi, Xen Ping, Piras, Roberta, Gala, Basia, Tessaro, Fernando H. G., Karlstaedt, Anja, Orsulic, Sandra, Lund, Amanda W., Chan, Keith Syson, and Guarnerio, Jlenia
- Abstract
T cell-based immunotherapies have exhibited promising outcomes in tumor control; however, their efficacy is limited in immune-excluded tumors. Cancer-associated fibroblasts (CAFs) play a pivotal role in shaping the tumor microenvironment and modulating immune infiltration. Despite the identification of distinct CAF subtypes using single-cell RNA-sequencing (scRNA-seq), their functional impact on hindering T-cell infiltration remains unclear, particularly in soft-tissue sarcomas (STS) characterized by low response rates to T cell-based therapies. In this study, we characterize the STS microenvironment using murine models (in female mice) with distinct immune composition by scRNA-seq, and identify a subset of CAFs we termed glycolytic cancer-associated fibroblasts (glyCAF). GlyCAF rely on GLUT1-dependent expression of CXCL16 to impede cytotoxic T-cell infiltration into the tumor parenchyma. Targeting glycolysis decreases T-cell restrictive glyCAF accumulation at the tumor margin, thereby enhancing T-cell infiltration and augmenting the efficacy of chemotherapy. These findings highlight avenues for combinatorial therapeutic interventions in sarcomas and possibly other solid tumors. Further investigations and clinical trials are needed to validate these potential strategies and translate them into clinical practice.Cancer associated fibroblasts can shape the tumor microenvironment (TME) and modulate immune infiltration. Here the authors characterize the TME in preclinical models of softtissue sarcomas, identifying a subset of “glycolytic” cancer-associated fibroblasts that inhibit cytotoxic T cell infiltration into the tumor parenchyma. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Association Between Total Genotype Score and Muscle Injuries in Top-Level Football Players: a Pilot Study.
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Massidda, Myosotis, Flore, Laura, Cugia, Paolo, Piras, Francesco, Scorcu, Marco, Kikuchi, Naoki, Cięszczyk, Pawel, Maciejewska-Skrendo, Agnieszka, Tocco, Filippo, and Calò, Carla Maria
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SKELETAL muscle injuries ,RISK assessment ,PEARSON correlation (Statistics) ,GENOMICS ,RECEIVER operating characteristic curves ,PILOT projects ,POLYMERASE chain reaction ,KRUSKAL-Wallis Test ,DESCRIPTIVE statistics ,CHI-squared test ,MANN Whitney U Test ,GENETIC polymorphisms ,ODDS ratio ,LONGITUDINAL method ,ONE-way analysis of variance ,CONFIDENCE intervals ,DATA analysis software ,SOCCER injuries ,GENOTYPES ,DISEASE risk factors - Abstract
Background: Recently, genetic predisposition to injury has become a popular area of research and the association between a few single nucleotide polymorphisms (SNPs) and the susceptibility to develop musculoskeletal injuries has been shown. This pilot study aimed to investigate the combined effect of common gene polymorphisms previously associated with muscle injuries in Italian soccer players. Results: A total of 64 Italian male top football players (age 23.1 ± 5.5 years; stature 180.2 ± 7.4 cm; weight 73.0 ± 7.9 kg) were genotyped for four gene polymorphisms [ACE I/D (rs4341), ACTN3 c.1729C > T (rs1815739), COL5A1 C > T (rs2722) and MCT1 c.1470A > T (rs1049434)]. Muscle injuries were gathered for 10 years (2009–2019). Buccal swabs were used to obtain genomic DNA, and the PCR method was used to genotype the samples. The combined influence of the four polymorphisms studied was calculated using a total genotype score (TGS: from 0 to 100 arbitrary units; a.u.). A genotype score (GS) of 2 was assigned to the "protective" genotype for injuries, a GS of 1 was assigned to the heterozygous genotype while a GS of 0 was assigned to the "worst" genotype. The distribution of genotype frequencies in the ACE I/D (rs4341), ACTN3 c.1729C > T (rs1815739) and MCT1 c.1470A > T (rs1049434) polymorphisms was different between non-injured and injured football players (p = 0.001; p = 0.016 and p = 0.005, respectively). The incidence of muscle injuries was significantly different among the ACE I/D (rs4341), ACTN3 c.1729C > T (rs1815739) and COL5A1 C > T (rs2722) genotype groups, showing a lower incidence of injuries in the "protective" genotype than "worse" genotype (ACE, p < 0.001; ACTN3, p = 0.005) or intermediate genotype (COL5A1, p = 0.029). The mean TGS in non-injured football players (63.7 ± 13.0 a.u.) was different from that of injured football players (42.5 ± 12.5 a.u., p < 0.001). There was a TGS cut-off point (56.2 a.u.) to discriminate non-injured from injured football players. Players with a TGS beyond this cut-off had an odds ratio of 3.5 (95%CI 1.8–6.8; p < 0.001) to suffer an injury when compared with players with lower TGS. Conclusions: These preliminary data suggest that carrying a high number of "protective" gene variants could influence an individual's susceptibility to developing muscle injuries in football. Adapting the training load parameters to the athletes' genetic profile represents today the new frontier of the methodology of training. Key Points: The ACE I/D (rs4341), ACTN3 c.1729C>T (rs1815739), COL5A1 C>T (rs2722) and MCT1 c.1470A>T (rs1049434) polymorphisms (and their interaction) are associated with muscle injury in football players. The ACE D allele, the ACTN3 C allele, the COL5A1 C allele, and the MCT1 T allele seem to protect football players from developing muscle injuries. The Total Genotype Score was associated with the incidence of muscle injuries in Italian top-level footballers, and this result needs replication in a larger independent cohort. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Superior petrosal vein sacrifice in translabyrinthine approach for resection of vestibule schwannoma.
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Wang, Yongjie, Piras, Gianluca, Lauda, Lorenzo, Caruso, Antonio, Russo, Alessandra, Taibah, Abdelkader, and Sanna, Mario
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VEINS , *LOGISTIC regression analysis , *FACIAL nerve , *REFERENCE values , *RECEIVER operating characteristic curves - Abstract
Purpose: The aim of this study was to evaluate the safety and surgical outcome of superior petrosal vein (SPV, Dandy's vein) sacrifice in translabyrinthine approach (TLA) for resection of vestibule schwannoma (VS) as compared with SPV preservation, with further investigation of preoperational factors associated with the implement of SPV sacrifice. Methods: The authors prospectively collected data from patients surgically treated for VS through TLA between June 2021 and April 2022 at the Gruppo Otologico. Results: There were 30 and 49 patients in SPV sacrifice and preservation groups, respectively. SPV sacrifice group had significantly larger tumor size (2.46 vs. 1.40 cm), less percentage of solid tumor (26.7% vs. 83.7%), higher incidence of brainstem compression (80% vs. 26.5%), and higher percentage of facial numbness (20.0% vs. 4.1%) than SPV preservation group. Gross total resection (GTR) rates were 73.3% after SPV sacrifice and 87.8% after SPV preservation. Facial nerve preservation rates were similar. No complication related with SPV sacrifice was observed. Logistic regression analysis showed tumor size and complete solid consistency as significant risk factors associated with SPV sacrifice. ROC curve further demonstrated tumor size as a fair predictor (AUC = 0.833), with optimum cutoff value of 1.68 cm. Conclusion: SPV sacrifice via TLA as needed is a safe and effective maneuver for removal of relatively large VS. Tumor size and consistency can be used as a guidance in preoperational decision-making, with cutoff value of 1.68 cm and cystic formation as predictive indicators. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Reply to "comments on tumor progression in tympanojugular paragangliomas: the role of radiotherapy and wait and scan".
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Fancello, Giuseppe, Fancello, Virginia, Ehsani, Diana, Porpiglia, Vincenzo, Piras, Gianluca, Caruso, Antonio, and Sanna, Mario
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CANCER invasiveness ,PARAGANGLIOMA ,INTENSITY modulated radiotherapy ,RADIOSURGERY ,RADIOTHERAPY - Abstract
This document is a reply to a comment on a study about tumor progression in tympanojugular paragangliomas and the role of radiotherapy and wait and scan. The authors thank the commenters for their input and acknowledge the limitations of their study, including the retrospective nature and lack of standardized symptom monitoring. They also discuss the potential impact of radiation on symptoms such as tinnitus, dysphagia, and dysphonia, and suggest the need for future prospective studies with self-assessment questionnaires and clinical scores. The authors apologize for an error in their paper and provide corrected data in an attached table. They emphasize the importance of ongoing debates and research to improve patient care. [Extracted from the article]
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- 2024
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18. Humoral responses to wild type and ancient BA.1 SARS-CoV-2 variant after heterologous priming vaccination with ChAdOx1 nCoV-19 and BNT162b2 booster dose.
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Sanna, Giuseppina, Marongiu, Alessandra, Firinu, Davide, Piras, Cristina, Palmas, Vanessa, Galdiero, Massimiliano, Atzori, Luigi, Caria, Paola, Campagna, Marcello, Perra, Andrea, Costanzo, Giulia, Coghe, Ferdinando, Littera, Roberto, Chessa, Luchino, and Manzin, Aldo
- Abstract
Several countries have recommended a booster dose of Pfizer BNT162b2 vaccine for subjects under the age of 60, who have already received the first dose of ChAdOx1. This is due to several ChAdOx1 vaccine-associated adverse vascular events and thrombocytopenia. Neutralization assay and quantitative IgG anti-SARS-CoV-2 Spike antibody (anti-S-IgG) were conducted to investigate the long-term responses to vaccine treatment in a cohort of Sardinian participants, who have received heterologous Prime–Boost Vaccination via ChAdOx1 vector vaccine and a booster dose via BNT162b2. The obtained results were compared with those of a cohort of healthcare workers (HCW) who received homologous BNT162b2 (BNT/BNT/BNT) vaccination. One month (T2) and five months after the second and before the third dose (T3), anti-spike antibody or neutralizing titers in the subjects vaccinated with ChAdOx1-S/BNT162b2 were significantly higher than those who experienced the ChAdOx1-S/ChAdOx1-S or BNT162b2/BNT162b2 schedule. These results suggest that a ChAdOx1-S/BNT162b2 regimen provides a more robust antibody response than either of the homologous regimens. However, the anti-spike antibodies or neutralizing titers after the third injection (mRNA vaccine) of ChAdOx1-S as a second dose and BNT162b2 were not statistically different. Homologous and heterologous vaccination provided a strong antibody response. Neutralizing activities were also described against the Omicron BA.1 variant in a sub-group (40) representative of the three vaccination regimens among our cohort. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Artificial intelligence applied to image-guided radiation therapy (IGRT): a systematic review by the Young Group of the Italian Association of Radiotherapy and Clinical Oncology (yAIRO).
- Author
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Boldrini, Luca, D'Aviero, Andrea, De Felice, Francesca, Desideri, Isacco, Grassi, Roberta, Greco, Carlo, Iorio, Giuseppe Carlo, Nardone, Valerio, Piras, Antonio, and Salvestrini, Viola
- Abstract
Introduction: The advent of image-guided radiation therapy (IGRT) has recently changed the workflow of radiation treatments by ensuring highly collimated treatments. Artificial intelligence (AI) and radiomics are tools that have shown promising results for diagnosis, treatment optimization and outcome prediction. This review aims to assess the impact of AI and radiomics on modern IGRT modalities in RT. Methods: A PubMed/MEDLINE and Embase systematic review was conducted to investigate the impact of radiomics and AI to modern IGRT modalities. The search strategy was "Radiomics" AND "Cone Beam Computed Tomography"; "Radiomics" AND "Magnetic Resonance guided Radiotherapy"; "Radiomics" AND "on board Magnetic Resonance Radiotherapy"; "Artificial Intelligence" AND "Cone Beam Computed Tomography"; "Artificial Intelligence" AND "Magnetic Resonance guided Radiotherapy"; "Artificial Intelligence" AND "on board Magnetic Resonance Radiotherapy" and only original articles up to 01.11.2022 were considered. Results: A total of 402 studies were obtained using the previously mentioned search strategy on PubMed and Embase. The analysis was performed on a total of 84 papers obtained following the complete selection process. Radiomics application to IGRT was analyzed in 23 papers, while a total 61 papers were focused on the impact of AI on IGRT techniques. Discussion: AI and radiomics seem to significantly impact IGRT in all the phases of RT workflow, even if the evidence in the literature is based on retrospective data. Further studies are needed to confirm these tools' potential and provide a stronger correlation with clinical outcomes and gold-standard treatment strategies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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20. Lentiviral vectors escape innate sensing but trigger p53 in human hematopoietic stem and progenitor cells
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Francesco Piras, Michela Riba, Carolina Petrillo, Dejan Lazarevic, Ivan Cuccovillo, Sara Bartolaccini, Elia Stupka, Bernhard Gentner, Davide Cittaro, Luigi Naldini, and Anna Kajaste‐Rudnitski
- Subjects
gene therapy ,hematopoietic stem and progenitor cells ,innate sensing ,lentiviral vectors ,p53 signaling ,Medicine (General) ,R5-920 ,Genetics ,QH426-470 - Abstract
Abstract Clinical application of lentiviral vector (LV)‐based hematopoietic stem and progenitor cells (HSPC) gene therapy is rapidly becoming a reality. Nevertheless, LV‐mediated signaling and its potential functional consequences on HSPC biology remain poorly understood. We unravel here a remarkably limited impact of LV on the HSPC transcriptional landscape. LV escaped innate immune sensing that instead led to robust IFN responses upon transduction with a gamma‐retroviral vector. However, reverse‐transcribed LV DNA did trigger p53 signaling, activated also by non‐integrating Adeno‐associated vector, ultimately leading to lower cell recovery ex vivo and engraftment in vivo. These effects were more pronounced in the short‐term repopulating cells while long‐term HSC frequencies remained unaffected. Blocking LV‐induced signaling partially rescued both apoptosis and engraftment, highlighting a novel strategy to further dampen the impact of ex vivo gene transfer on HSPC. Overall, our results shed light on viral vector sensing in HSPC and provide critical insight for the development of more stealth gene therapy strategies.
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- 2017
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21. Clozapine once- versus multiple-daily dosing: a two-center cross-sectional study, systematic review and meta-analysis.
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Kuzo, Nazar, Haen, Ekkehard, Ho, Dominic M., Takeuchi, Hiroyoshi, Piras, Marianna, Eap, Chin-Bin, de Filippis, Renato, Homan, Philipp, Kane, John M., Roy, Marc-André, Paulzen, Michael, and Schoretsanitis, Georgios
- Subjects
CLOZAPINE ,PATIENT compliance ,CROSS-sectional method ,PATIENT preferences ,NEUROLEPTIC malignant syndrome ,ODDS ratio ,AGRANULOCYTOSIS - Abstract
Evidence regarding effectiveness and safety of clozapine once- vs. multiple-daily dosing is limited. We compared demographic and clinical parameters between patients with once- vs. multiple-daily dosing in the Department of Psychiatry and Psychotherapy, University of Regensburg, Germany (AGATE dataset), and the Department of Psychiatry, Lausanne University Hospital, Switzerland, using non-parametric tests. Effectiveness and safety outcomes were available in the AGATE dataset. We performed a systematic review in PubMed/Embase until February 2022, meta-analyzing studies comparing clozapine once- vs. multiple-daily-dosing. We estimated a pooled odds ratio for adverse drug-induced reactions (ADRs) and meta-analyzed differences regarding clinical symptom severity, age, percentage males, smokers, clozapine dose, and co-medications between patients receiving once- vs. multiple-daily dosing. Study quality was assessed using the Newcastle–Ottawa-Scale. Of 1494 and 174 patients included in AGATE and Lausanne datasets, clozapine was prescribed multiple-daily in 74.8% and 67.8%, respectively. In the AGATE cohort, no differences were reported for the clinical symptoms severity or ADR rate (p > 0.05). Meta-analyzing eight cohorts with a total of 2810 clozapine-treated individuals, we found more severe clinical symptoms (p = 0.036), increased ADR risk (p = 0.01), higher clozapine doses (p < 0.001), more frequent co-medication with other antipsychotics (p < 0.001), benzodiazepines (p < 0.001), anticholinergics (p = 0.039), and laxatives (p < 0.001) in patients on multiple- vs. once-daily dosing. Of six studies, five were rated as good, and one as poor quality. Patients responding less well to clozapine may be prescribed higher doses multiple-daily, also treated with polypharmacy, potentially underlying worse safety outcomes. Patient preferences and adherence should be considered during regimen selection. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
22. The localization of centromere protein A is conserved among tissues.
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Cappelletti, Eleonora, Piras, Francesca M., Sola, Lorenzo, Santagostino, Marco, Petersen, Jessica L., Bellone, Rebecca R., Finno, Carrie J., Peng, Sichong, Kalbfleisch, Ted S., Bailey, Ernest, Nergadze, Solomon G., and Giulotto, Elena
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- *
CENTROMERE , *SATELLITE DNA , *GENE mapping , *FETAL tissues , *CHROMOSOMES , *TISSUES , *EQUINE influenza - Abstract
Centromeres are epigenetically specified by the histone H3 variant CENP-A. Although mammalian centromeres are typically associated with satellite DNA, we previously demonstrated that the centromere of horse chromosome 11 (ECA11) is completely devoid of satellite DNA. We also showed that the localization of its CENP-A binding domain is not fixed but slides within an about 500 kb region in different individuals, giving rise to positional alleles. These epialleles are inherited as Mendelian traits but their position can move in one generation. It is still unknown whether centromere sliding occurs during meiosis or during development. Here, we first improve the sequence of the ECA11 centromeric region in the EquCab3.0 assembly. Then, to test whether centromere sliding may occur during development, we map the CENP-A binding domains of ECA11 using ChIP-seq in five tissues of different embryonic origin from the four horses of the equine FAANG (Functional Annotation of ANimal Genomes) consortium. Our results demonstrate that the centromere is localized in the same region in all tissues, suggesting that the position of the centromeric domain is maintained during development. Sequence improvement of the centromeric region of horse chromosome 11 and mapping of the histone H3 variant CENP-A binding domains show that the centromere is localized in the same region in horse tissues from different embryonic origin. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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23. Multi-feature clustering of CTCF binding creates robustness for loop extrusion blocking and Topologically Associating Domain boundaries.
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Chang, Li-Hsin, Ghosh, Sourav, Papale, Andrea, Luppino, Jennifer M., Miranda, Mélanie, Piras, Vincent, Degrouard, Jéril, Edouard, Joanne, Poncelet, Mallory, Lecouvreur, Nathan, Bloyer, Sébastien, Leforestier, Amélie, Joyce, Eric F., Holcman, David, and Noordermeer, Daan
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BINDING sites ,CELL analysis ,CARRIER proteins - Abstract
Topologically Associating Domains (TADs) separate vertebrate genomes into insulated regulatory neighborhoods that focus genome-associated processes. TADs are formed by Cohesin-mediated loop extrusion, with many TAD boundaries consisting of clustered binding sites of the CTCF insulator protein. Here we determine how this clustering of CTCF binding contributes to the blocking of loop extrusion and the insulation between TADs. We identify enrichment of three features of CTCF binding at strong TAD boundaries, consisting of strongly bound and closely spaced CTCF binding peaks, with a further enrichment of DNA-binding motifs within these peaks. Using multi-contact Nano-C analysis in cells with normal and perturbed CTCF binding, we establish that individual CTCF binding sites contribute to the blocking of loop extrusion, but in an incomplete manner. When clustered, individual CTCF binding sites thus create a stepwise insulation between neighboring TADs. Based on these results, we propose a model whereby multiple instances of temporal loop extrusion blocking create strong insulation between TADs. Most mammalian TAD boundaries, which separate functional chromosomal domains, bind the CTCF protein. Here, the authors identify multi-level clustering of CTCF binding sites at TAD boundaries and confirm their individual contribution to TAD formation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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24. The Justice and Ontology of Gastrospaces
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Matteo Bonotti, Andrea Borghini, Nicola Piras, and Beatrice Serini
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Food and space ,Philosophy ,Justice ,Moral powers ,Ontology ,Settore M-FIL/05 - Filosofia e Teoria dei Linguaggi ,Settore M-FIL/03 - Filosofia Morale ,Settore M-FIL/01 - Filosofia Teoretica ,Social Sciences (miscellaneous) - Abstract
In this paper, we establish gastrospaces as a subject of philosophical inquiry and an item for policy agendas. We first explain their political value, as key sites where members of liberal democratic societies can develop the capacity for a sense of justice and the capacity to form, revise, and pursue a conception of the good. Integrating political philosophy with analytic ontology, we then unfold a theoretical framework for gastrospaces: first, we show the limits of the concept of “third place;” second, we lay out the foundations for an ontological model of gastrospaces; third, we introduce five features of gastrospaces that connect their ontology with their political value and with the realization of justice goals. We conclude by briefly illustrating three potential levels of intervention concerning the design, use, and modification of gastrospaces: institutions, keepers, and users.
- Published
- 2023
25. Remittances, economic complexity, and new firms' creation: empirical evidence from a large sample of countries.
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Piras, Romano
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REMITTANCES ,COUNTRY of origin (Immigrants) ,BUSINESS enterprises ,ECONOMIC development ,COUNTRIES - Abstract
One of the most debated issues in migration economics regards the effects of remittances in receiving countries. In this paper, we test whether the economic complexity of a country is relevant for understanding the impact of remittances on new firms' birth. We find evidence that the impact of real per capita remittances on new firms' creation is inversely mediated by economic complexity. More (less) complex economies generate opportunities to found new firms which need high (low) funding. Since economic complexity is positively correlated with economic development, remittances are more likely to facilitate the establishment of new firms in less developed economies rather than in more advanced ones. We also examine the link between remittances and new firm creation for Africa, Asia, Europe, and Latin America and the Caribbean countries, finding very heterogeneous patterns. Hence, policy implications aiming at attracting remittances to create new firms should respond to the challenges posed by specific countries and be tailored to their peculiar needs. Countries of origin should build institutions and facilitate the creation of networks to bridge the diaspora abroad with their home country to increase awareness of new business opportunities. Policy initiatives could spur investment in the formal economy by making regulations less stringent, discouraging the use of remittances for consumption purposes, reducing informality, improving competition, reducing remittance transfer costs, and giving incentives to new firms created through remittances. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
26. Integrated DNA Methylation/RNA Profiling in Middle Temporal Gyrus of Alzheimer's Disease.
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Piras, Ignazio S., Brokaw, Danielle, Kong, Yinfei, Weisenberger, Daniel J., Krate, Jonida, Delvaux, Elaine, Mahurkar, Swapna, Blattler, Adam, Siegmund, Kimberly D., Sue, Lucia, Serrano, Geidy E., Beach, Thomas G., Laird, Peter W., Huentelman, Matthew J., and Coleman, Paul D.
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- *
ALZHEIMER'S disease , *DNA methylation , *GENE expression , *TEMPORAL lobe , *GENETIC regulation - Abstract
Alzheimer's disease is a neurodegenerative disorder clinically defined by gradual cognitive impairment and alteration in executive function. We conducted an epigenome-wide association study (EWAS) of a clinically and neuropathologically characterized cohort of 296 brains, including Alzheimer's disease (AD) and non-demented controls (ND), exploring the relationship with the RNA expression from matched donors. We detected 5246 CpGs and 832 regions differentially methylated, finding overlap with previous EWAS but also new associations. CpGs previously identified in ANK1, MYOC, and RHBDF2 were differentially methylated, and one of our top hits (GPR56) was not previously detected. ANK1 was differentially methylated at the region level, along with APOE and RHBDF2. Only a small number of genes showed a correlation between DNA methylation and RNA expression statistically significant. Multiblock partial least-squares discriminant analysis showed several CpG sites and RNAs discriminating AD and ND (AUC = 0.908) and strongly correlated with each other. Furthermore, the CpG site cg25038311 was negatively correlated with the expression of 22 genes. Finally, with the functional epigenetic module analysis, we identified a protein–protein network characterized by inverse RNA/DNA methylation correlation and enriched for "Regulation of insulin-like growth factor transport", with IGF1 as the hub gene. Our results confirm and extend the previous EWAS, providing new information about a brain region not previously explored in AD DNA methylation studies. The relationship between DNA methylation and gene expression is not significant for most of the genes in our sample, consistently with the complexities in the gene expression regulation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
27. Late complications of cochlear implant: a case report of necrotizing meningoencephalitis similar to a CPA tumor.
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Di Rubbo, Vittoria, Morelli, Luca, Zangrandi, Adriano, Lauda, Lorenzo, Piras, Gianluca, and Sanna, Mario
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COCHLEAR implants ,MENINGOENCEPHALITIS ,SENSORINEURAL hearing loss ,CEREBELLOPONTILE angle ,MAGNETIC resonance imaging - Abstract
Objective: Report a case of localized necrotizing meningoencephalitis as the cause of functional hearing loss after cochlear implant (CI) surgery. Case report: A 12-year-old with bilateral CI presented to our quaternary center due to severe functional hearing loss after 11 years since left ear CI surgery. CT with contrast was conducted showing a CPA tumor-like mass. Pre-operative computed tomography (CT) scans and magnetic resonance imaging (MRI) performed at the age of 1 year showed no inner ear abnormalities and in particular no evidence of a tumor in the cerebellopontine angle (CPA). Conclusion: Following removal of the CI and the mass, histopathological, immunohistochemical and cultural examinations revealed a necrotizing meningoencephalitis, with the CI electrode as the focus. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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28. Deciphering clinical significance of BCL11A isoforms and protein expression roles in triple-negative breast cancer subtype.
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Angius, Andrea, Pira, Giovanna, Cossu-Rocca, Paolo, Sotgiu, Giovanni, Saderi, Laura, Muroni, Maria Rosaria, Virdis, Patrizia, Piras, Daniela, Vincenzo, Rallo, Carru, Ciriaco, Coradduzza, Donatella, Uras, Maria Gabriela, Cottu, Pierina, Fancellu, Alessandro, Orrù, Sandra, Uva, Paolo, and De Miglio, Maria Rosaria
- Subjects
TRIPLE-negative breast cancer ,PROTEIN expression ,GENE expression profiling ,GENE expression - Abstract
Purpose: Triple negative breast cancer (TNBC) is an aggressive clinical tumor, accounting for about 25% of breast cancer (BC) related deaths. Chemotherapy is the only therapeutic option to treat TNBC, hence a detailed understanding of the biology and its categorization is required. To investigate the clinical relevance of BCL11A in TNBC subtype, we focused on gene and protein expression and its mutational status in a large cohort of this molecular subtype. Methods: Gene expression profiling of BCL11A and its isoforms (BCL11A-XL, BCL11A-L and BCL11A-S) has been determined in Luminal A, Luminal B, HER2-enriched and TNBC subtypes. BCL11A protein expression has been analyzed by immunohistochemistry (IHC) and its mutational status by Sanger sequencing. Results: In our study, BCL11A was significantly overexpressed in TNBC both at transcriptional and translational levels compared to other BC molecular subtypes. A total of 404 TNBCs were selected and examined showing a high prevalence of BCL11A-XL (37.3%) and BCL11A-L (31.4%) isoform expression in TNBC, associated with a 26% of BCL11A protein expression levels. BCL11A protein expression predicts scarce LIV (HR = 0.52; 95% CI, 0.29–0.92, P = 0.03) and AR downregulation (HR = 0.37; 95% CI, 0.16–0.88; P = 0.02), as well as a higher proliferative index in TNBC cells. BCL11A-L expression is associated with more aggressive TNBC histological types, such as medullary and metaplastic carcinoma. Conclusion: Our finding showed that BCL11A protein expression acts as an unfavorable prognostic factor in TNBC patients, especially in non luminal TNBCs subgroups. These results may yield a better treatment strategy by providing a new parameter for TNBC classification. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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29. A systematic review and meta-analysis of homocysteine concentrations in chronic obstructive pulmonary disease.
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Zinellu, Angelo, Zinellu, Elisabetta, Pau, Maria Carmina, Fois, Alessandro G., Mellino, Sabrina, Piras, Barbara, Scano, Valentina, Fois, Sara S., Mangoni, Arduino A., Carru, Ciriaco, and Pirina, Pietro
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CHRONIC obstructive pulmonary disease ,HOMOCYSTEINE ,ELECTRONIC publications - Abstract
Patients with chronic obstructive pulmonary disease (COPD) often suffer from other conditions, such as cardiovascular disease, that further increase the risk of adverse outcomes in this group. Serum homocysteine concentrations are positively associated with cardiovascular risk and have also been reported to be increased in COPD. This meta-analysis investigated the association between homocysteine concentrations and COPD. A systematic search of publications in the electronic databases PubMed, Web of Science, Scopus, and Google Scholar, from inception to September 2021, was conducted using the following terms: "Homocysteine" or "Hcy" and "Chronic Obstructive Pulmonary Disease" or "COPD". Weighted mean differences (WMDs) were calculated to evaluate differences in homocysteine concentrations between COPD patients and non-COPD subjects. Risk of bias and certainty of evidence were assessed using the Joanna Briggs Institute Critical Appraisal Checklist and GRADE, respectively. Nine studies in 432 COPD patients (mean age 65 years, 65% males) and 311 controls (mean age 65 years, 56% males) were identified. Pooled results showed that serum homocysteine concentrations were significantly higher in patients with COPD (WMD = 2.91 µmol/L, 95% CI 2.00–3.82 µmol/L; p < 0.001; high certainty of evidence). No publication bias was observed. Our results support the hypothesis that increased homocysteine concentrations are significantly associated with COPD and may account, at least in part, for the increased cardiovascular risk in these patients. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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30. An atypical death from Rapunzel syndrome: a case report.
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Piras, Gianluca Nicolò, Tomassini, Luca, Bottoni, Edoardo, di Gioia, Cira, and Ciallella, Costantino
- Subjects
- *
AUTOPSY , *ASPIRATORS , *GASTROINTESTINAL system , *CHILD patients , *SMALL intestine , *BOWEL obstructions , *MENTAL illness , *SYNDROMES , *EYELASHES - Abstract
Trichotillomania is a psychiatric disorder characterized by recurring urges to pulling out hairs, eyelashes, or down in other parts of the body. Trichophagia, which is the urge to ingesting the pulled-out hairs, can cause Rapunzel syndrome, an unusual disorder where gastric trichobezoars can be found in the small intestine. Trichobezoars, amorphous masses composed of undigested food formed by hairs, can obstruct the gastrointestinal tract up to simulating symptoms typical of bowel obstruction. Rapunzel syndrome, named after Grimm's tale, may cause death, especially in the pediatric population, being it seldom over the age of 6; moreover, developing countries and environmental and familiar issues are listed as uncertain risk factors. The present case report deals with the death of a 4-year-old female occurred after lunch and following a series of vomit events; while no traumatic or pathological findings were revealed at the external examination, the autopsy revealed three large trichobezoars localized in the stomach and the small intestine. Despite death was due to gastrointestinal obstruction for multiple trichobezoars and collateral bronchoaspiration of dietary material, histological findings were totally non-specific, meaning that it is sometimes difficult to conclude that death is related to the primary pathological condition. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. The Burden and Impacts of Mealtime Insulin from the Perspective of People with Diabetes.
- Author
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Paczkowski, R., Poon, J. L., Cutts, K. N., Krucien, N., Osumili, B., de Oliveira, C. Piras, Hankosky, E. R., Perez-Nieves, M., Radawski, C., and Gelhorn, H. L.
- Subjects
PEOPLE with diabetes ,TYPE 1 diabetes ,TYPE 2 diabetes ,INSULIN ,PSYCHOLOGICAL distress - Abstract
Introduction: While there have been continued advances in insulin treatment for diabetes since the discovery of insulin 100 years ago, some unmet needs still remain, including those related to mealtime insulin (MTI). The objective of this study was to explore the impacts related to MTI and the relative burden of the impacts on people with diabetes. Methods: This study was conducted across two phases, namely, a qualitative and quantitative phase. People with type 1 and 2 diabetes using MTI in the USA and UK were recruited for the study. The qualitative phase involved 30 interviews to explore the impacts associated with MTI. Based on the results of the qualitative phase, a list of impacts was developed to evaluate the importance of MTI impacts using best−worst scaling. Results: A total of 30 participants completed interviews, and 336 completed the quantitative phase. Participants described a range of impacts associated with MTI, including psychological (72.0%), social (63.0%), work/school (53.8%), and sleep (51.7%). Impacts for the quantitative phase were categorized under the following domains: diabetes distress, diabetes management, work productivity, and social. The three most burdensome impacts were related to diabetes distress, but the diabetes management domain contributed more than diabetes distress to the relative burden. There were minor differences in the relative importance of impacts by diabetes type, diabetes duration, and experience with continuous glucose monitoring. Conclusion: This study confirms that people with diabetes using MTI still have an array of unmet needs, including those related to the management of their diabetes and the emotional distress of having diabetes. These findings may be useful for healthcare provider (HCP)-patient interactions to ensure HCPs are allowing patients an opportunity to discuss their experiences with MTI. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
32. Chronic spontaneous urticaria: a low-grade disseminated intravascular coagulation only partially reversed by Omalizumab.
- Author
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Di Pino, Marina, Ruberto, Maria Filomena, Costanzo, Giulia, Firinu, Davide, Piras, Maria Sebastiana, Mura, Mario Nicola, Del Giacco, Stefano, Coghe, Ferdinando, Marongiu, Francesco, and Barcellona, Doris
- Subjects
DISSEMINATED intravascular coagulation ,OMALIZUMAB ,MEAN platelet volume ,PLATELET count ,PEPTIDES - Abstract
Chronic spontaneous urticaria (CSU) is a disorder characterized by wheals and/or angioedema. The coagulation cascade and inflammation pathways are closely linked together. The aim of our study was first to investigate the dynamics of clot formation in plasma (Clot Waveform Analysis, CWA) in a group of 47 patients with CSU along with other coagulative parameters dedicated to the study of hypercoagulability, such as D-Dimer, F 1 + 2 peptide, Fibrinogen, Platelet count and Mean Platelet Volume (MPV). Secondly, 23 out of 47 patients were treated with Omalizumab at four administration intervals from T0 to T4. A statistically significant increase in Activated Partial Thromboplastin (aPTT) ratio, D-Dimer, F1 + 2, Platelet count and MPV was found when compared with 53 healthy controls (HC). In contrast, the 2nd Derivative of aPTT showed lower values than those of the HC. No differences were found between 1st derivative of aPTT and Fibrinogen. D-Dimer only showed a significant difference between T0 and T3. An activation of both coagulation and fibrinolysis along with a weaker clot acceleration may be in agreement with a low-grade DIC. The accelerated turnover of platelets expressed by both an increase in platelet count and MPV further supports this pathway in CSU. Omalizumab does not affect the relationship between the immune and the hemostatic systems. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
33. Electronic supplementary material for Are physicochemical properties shaping the allergenic potency of plant allergens?
- Author
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Costa, Joana, Bavaro, Simona L., Benedé, Sara, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Gelencser, Eva, Klueber, Julia, Larré, Colette, Lozano-Ojalvo, Daniel, Lupi, Roberta, Mafra, Isabel, Mazzucchelli, Gabriel, Molina, Elena, Monaci, Linda, Martín-Pedraza, Laura, Piras, Cristian, Rodrigues, Pedro M., Roncada, Paola, Schrama, Denise, Cirkovic Velickovic, Tanja, Verhoeckx, Kitty, Villa, Caterina, Kuehn, Annette, Hoffmann-Sommergruber, Karin, Holzhauser, Thomas, Costa, Joana, Bavaro, Simona L., Benedé, Sara, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Gelencser, Eva, Klueber, Julia, Larré, Colette, Lozano-Ojalvo, Daniel, Lupi, Roberta, Mafra, Isabel, Mazzucchelli, Gabriel, Molina, Elena, Monaci, Linda, Martín-Pedraza, Laura, Piras, Cristian, Rodrigues, Pedro M., Roncada, Paola, Schrama, Denise, Cirkovic Velickovic, Tanja, Verhoeckx, Kitty, Villa, Caterina, Kuehn, Annette, Hoffmann-Sommergruber, Karin, and Holzhauser, Thomas
- Published
- 2022
34. Are physicochemical properties shaping the allergenic potency of animal allergens?
- Author
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European Commission, European Cooperation in Science and Technology, Fundação para a Ciência e a Tecnologia (Portugal), Ministry of Education, Science and Technological Development (Serbia), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fonds National de la Recherche Luxembourg, Costa, Joana, Villa, Caterina, Verhoeckx, Kitty, Cirkovic Velickovic, Tanja, Schrama, Denise, Roncada, Paola, Rodrigues, Pedro M., Piras, Cristian, Martín-Pedraza, Laura, Monaci, Linda, Molina, Elena, Mazzucchelli, Gabriel, Mafra, Isabel, Lupi, Roberta, Lozano-Ojalvo, Daniel, Larré, Colette, Klueber, Julia, Gelencser, Eva, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Benedé, Sara, Bavaro, Simona L., Kuehn, Annette, Hoffmann-Sommergruber, Karin, Holzhauser, Thomas, European Commission, European Cooperation in Science and Technology, Fundação para a Ciência e a Tecnologia (Portugal), Ministry of Education, Science and Technological Development (Serbia), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fonds National de la Recherche Luxembourg, Costa, Joana, Villa, Caterina, Verhoeckx, Kitty, Cirkovic Velickovic, Tanja, Schrama, Denise, Roncada, Paola, Rodrigues, Pedro M., Piras, Cristian, Martín-Pedraza, Laura, Monaci, Linda, Molina, Elena, Mazzucchelli, Gabriel, Mafra, Isabel, Lupi, Roberta, Lozano-Ojalvo, Daniel, Larré, Colette, Klueber, Julia, Gelencser, Eva, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Benedé, Sara, Bavaro, Simona L., Kuehn, Annette, Hoffmann-Sommergruber, Karin, and Holzhauser, Thomas
- Abstract
Key determinants for the development of an allergic response to an otherwise ‘harmless’ food protein involve different factors like the predisposition of the individual, the timing, the dose, the route of exposure, the intrinsic properties of the allergen, the food matrix (e.g. lipids) and the allergen modification by food processing. Various physicochemical parameters can have an impact on the allergenicity of animal proteins. Following our previous review on how physicochemical parameters shape plant protein allergenicity, the same analysis was proceeded here for animal allergens., We found that each parameter can have variable effects, ranging on an axis from allergenicity enhancement to resolution, depending on its nature and the allergen. While glycosylation and phosphorylation are common, both are not universal traits of animal allergens. High molecular structures can favour allergenicity, but structural loss and uncovering hidden epitopes can also have a similar impact. We discovered that there are important knowledge gaps in regard to physicochemical parameters shaping protein allergenicity both from animal and plant origin, mainly because the comparability of the data is poor. Future biomolecular studies of exhaustive, standardised design together with strong validation part in the clinical context, together with data integration model systems will be needed to unravel causal relationships between physicochemical properties and the basis of protein allergenicity.
- Published
- 2022
35. Are physicochemical properties shaping the allergenic potency of plant allergens?
- Author
-
European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Ministry of Education, Science and Technological Development (Serbia), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fonds National de la Recherche Luxembourg, Costa, Joana, Bavaro, Simona L., Benedé, Sara, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Gelencser, Eva, Klueber, Julia, Larré, Colette, Lozano-Ojalvo, Daniel, Lupi, Roberta, Mafra, Isabel, Mazzucchelli, Gabriel, Molina, Elena, Monaci, Linda, Martín-Pedraza, Laura, Piras, Cristian, Rodrigues, Pedro M., Roncada, Paola, Schrama, Denise, Cirkovic Velickovic, Tanja, Verhoeckx, Kitty, Villa, Caterina, Kuehn, Annette, Hoffmann-Sommergruber, Karin, Holzhauser, Thomas, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Ministry of Education, Science and Technological Development (Serbia), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fonds National de la Recherche Luxembourg, Costa, Joana, Bavaro, Simona L., Benedé, Sara, Díaz-Perales, Araceli, Bueno-Diaz, Cristina, Gelencser, Eva, Klueber, Julia, Larré, Colette, Lozano-Ojalvo, Daniel, Lupi, Roberta, Mafra, Isabel, Mazzucchelli, Gabriel, Molina, Elena, Monaci, Linda, Martín-Pedraza, Laura, Piras, Cristian, Rodrigues, Pedro M., Roncada, Paola, Schrama, Denise, Cirkovic Velickovic, Tanja, Verhoeckx, Kitty, Villa, Caterina, Kuehn, Annette, Hoffmann-Sommergruber, Karin, and Holzhauser, Thomas
- Abstract
This review searched for published evidence that could explain how different physicochemical properties impact on the allergenicity of food proteins and if their effects would follow specific patterns among distinct protein families. Owing to the amount and complexity of the collected information, this literature overview was divided in two articles, the current one dedicated to protein families of plant allergens and a second one focused on animal allergens. Our extensive analysis of the available literature revealed that physicochemical characteristics had consistent effects on protein allergenicity for allergens belonging to the same protein family. For example, protein aggregation contributes to increased allergenicity of 2S albumins, while for legumins and cereal prolamins, the same phenomenon leads to a reduction. Molecular stability, related to structural resistance to heat and proteolysis, was identified as the most common feature promoting plant protein allergenicity, although it fails to explain the potency of some unstable allergens (e.g. pollen-related food allergens). Furthermore, data on physicochemical characteristics translating into clinical effects are limited, mainly because most studies are focused on in vitro IgE binding. Clinical data assessing how these parameters affect the development and clinical manifestation of allergies is minimal, with only few reports evaluating the sensitising capacity of modified proteins (addressing different physicochemical properties) in murine allergy models. In vivo testing of modified pure proteins by SPT or DBPCFC is scarce. At this stage, a systematic approach to link the physicochemical properties with clinical plant allergenicity in real-life scenarios is still missing.
- Published
- 2022
36. Improving in vivo oral bioavailability of a poorly soluble drug: a case study on polymeric versus lipid nanoparticles.
- Author
-
Rassu, Giovanna, Obinu, Antonella, Serri, Carla, Piras, Sandra, Carta, Antonio, Ferraro, Luca, Gavini, Elisabetta, Giunchedi, Paolo, and Dalpiaz, Alessandro
- Abstract
Poorly soluble drugs must be appropriately formulated for clinical use to increase the solubility, dissolution rate, and permeation across the intestinal epithelium. Polymeric and lipid nanocarriers have been successfully investigated for this aim, and their physicochemical properties, and in particular, the surface chemistry, significantly affect the pharmacokinetics of the drugs after oral administration. In the present study, PLGA nanoparticles (SS13NP) and solid lipid nanoparticles (SS13SLN) loaded with SS13, a BCS IV model drug, were prepared. SS13 bioavailability following the oral administration of SS13 (free drug), SS13NP, or SS13SLN was compared. SS13NP had a suitable size for oral administration (less than 300 nm), a spherical shape and negative zeta potential, similarly to SS13SLN. On the contrary, SS13NP showed higher physical stability but lower encapsulation efficiency (54.31 ± 6.66%) than SS13SLN (100.00 ± 3.11%). When orally administered (0.6 mg of drug), SS13NP showed higher drug AUC values with respect to SS13SLN (227 ± 14 versus 147 ± 8 µg/mL min), with higher C
max (2.47 ± 0.14 µg/mL versus 1.30 ± 0.15 µg/mL) reached in a shorter time (20 min versus 60 min). Both formulations induced, therefore, the oral bioavailability of SS13 (12.67 ± 1.43% and 4.38 ± 0.39% for SS13NP and SS12SLN, respectively) differently from the free drug. These in vivo results confirm that the chemical composition of nanoparticles significantly affects the in vivo fate of a BCS IV drug. Moreover, PLGA nanoparticles appear more efficient and rapid than SLN in allowing drug absorption and transport to systemic circulation. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
37. The Justice and Ontology of Gastrospaces.
- Author
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Bonotti, Matteo, Borghini, Andrea, Piras, Nicola, and Serini, Beatrice
- Subjects
FOOD ,PHILOSOPHY ,ONTOLOGY ,JUSTICE ,POLITICAL philosophy - Abstract
In this paper, we establish gastrospaces as a subject of philosophical inquiry and an item for policy agendas. We first explain their political value, as key sites where members of liberal democratic societies can develop the capacity for a sense of justice and the capacity to form, revise, and pursue a conception of the good. Integrating political philosophy with analytic ontology, we then unfold a theoretical framework for gastrospaces: first, we show the limits of the concept of "third place;" second, we lay out the foundations for an ontological model of gastrospaces; third, we introduce five features of gastrospaces that connect their ontology with their political value and with the realization of justice goals. We conclude by briefly illustrating three potential levels of intervention concerning the design, use, and modification of gastrospaces: institutions, keepers, and users. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
38. Health effects of outdoor water sports in chronic disease: a scoping review.
- Author
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Cugusi, Lucia, Meloni, Martina, Bergamin, Marco, Gobbo, Stefano, Di Blasio, Andrea, Conca, Corrado, Bassareo, Pier Paolo, Piras, Alessandra, and Bandiera, Pasquale
- Subjects
AQUATIC sports ,OUTDOOR recreation ,CHRONIC diseases ,BOATS & boating ,DATABASES - Abstract
Background: Although outdoor water sport activities are gaining increasing attention for their therapeutic potential in the social and care management of populations with chronic diseases, these practices are currently underutilised. Moreover, the available body of literature on the topic has not been critically and comprehensively assessed yet. Aims: (1) To appraise the health effects of outdoor water sport activities for chronic disease populations; (2) to preliminarily assess the potential size and scope of the available research literature for this emerging field and identify potential gaps and avenues of development. Methods: A literature search was performed scanning PubMed (including MEDLINE), Physiotherapy Evidence Database (PEDro) and Scopus from inception to December 2021. A scoping review was carried out by appraising all the available evidence on outdoor water sport interventions specifically designed for therapeutic purposes for individuals with chronic disease. The quality score of each study was calculated with the Tool for the assEssment of Study qualiTy and reporting in Exercise (TESTEX) tool. Results: Fifteen studies (five RCTs, seven non-RCTs and three CTs with healthy subjects as controls) met the inclusion criteria and were assessed. Among the studies selected, two focused on canoa kayak, one on stand-up paddle, two on surfing, two on sailing activity, and eight on dragon boat padding. The median TESTEX score for study quality and reporting was 6/15, i.e., "very low" (range 5–8). Based on the qualitative analysis, the few individual studies that could be included reported generally positive results, ranging from improvements in antioxidant action and cardiovascular function for dragon boating, to beneficial effects on balance, postural control, and flexibility for on-water paddle board activities. Overall, outdoor water sport interventions were associated to higher rates of adherence than conventional trainings. Conclusions: Very low to low quality evidence from a limited set of pilot studies seems to suggest beneficial effects of outdoor water sports for chronic disease populations. However, such preliminary findings need to be replicated through large, high-quality RCTs to be conducted in target populations. Avenues of development, scoping directions and translational perspectives for this specific research field are proposed and discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
39. Polygenic risk score and biochemical/environmental variables predict a low-risk profile of age-related macular degeneration in Sardinia.
- Author
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Serra, Rita, Rallo, Vincenzo, Pinna, Antonio, Steri, Maristella, Piras, Maria Grazia, Marongiu, Michele, Coscas, Florence, Gorospe, Myriam, Schlessinger, David, Fiorillo, Edoardo, Cucca, Francesco, and Angius, Andrea
- Subjects
MACULAR degeneration ,DISEASE risk factors ,MONOGENIC & polygenic inheritance (Genetics) ,EYE diseases ,C-reactive protein - Abstract
Purpose: To ascertain the prevalence and clinical and genetic features of age-related macular degeneration (AMD) in subjects living in the Lanusei valley, Central Sardinia, Italy, involved in a study on ageing (SardiNIA project). Methods: A total of 814 volunteers aged ≥ 50 years, randomly selected from the SardiNIA project dataset, were included. A color fundus (CF) photograph of the 30° central retina of each eye was obtained and graded according to the Age-Related Eye Disease Study system. Life-style choices were investigated using standardized questionnaires. The concentrations of several inflammatory biomarkers (i.e., complement component, fibrinogen, and C-reactive protein) were measured. Polygenic risk score (PRS) was calculated and compared with results obtained from a European cohort. Results: A total of 756 subjects had gradable CF photographs for AMD detection. In 91.3%, no signs of AMD were observed. The prevalence rates of early and late AMDs were 6.9% and 0.6%, respectively. A total of 85% of subjects were physically active; only 13.5% were current smokers. Low concentrations of complement component, fibrinogen, and C-reactive protein were found. We calculated the polygenic risk scores (PRS) using 40 AMD markers distributed on several candidate genes in Europeans and Sardinians. The mean PRS value was significantly lower in Sardinians than in the Europeans (0.21 vs. 0.248, respectively, p = 1.18 × 10
−77 ). Conclusions: In our cohort, most subjects showed no sign of any AMD type and late AMD was a condition rarely observed. Results of genetic, biochemical, and life-style investigation support the hypothesis that Sardinia population may present of a peculiar background with a protective effect against AMD development. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
40. Evidence of D-shaped wounds in the intrasomatic bullet path: two case reports.
- Author
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Tomassini, Luca, Manta, Anna Maria, Paolini, Daniele, Petrasso, Pia Eugenia Ylenia, Piras, Gianluca Niccolò, and Ciallella, Costantino
- Subjects
GUNSHOT wounds ,FORENSIC pathologists ,KINETIC energy ,ENERGY dissipation ,BULLETS - Abstract
The final appearance of gunshot wounds is influenced by both the projectile's behavior from the muzzle to the terminal target and by the intrinsic characteristics of the anatomical compartments where the lesion(s) occur. The D-shaped morphology is an uncommon yet well-known finding in the forensic literature and has been described when the surface of impact with the skin is represented by the bullet's lateral projection. Two cases where D-shaped gunshot wounds were observed are hereby presented: in both cases, interaction with multiple intermediate targets (case 1) and a human intermediate target (case 2) had been documented and confirmed by the forensic examination. Despite the different dynamics of production, this peculiar morphology was described throughout most of the intrasomatic bullet path in both the victims. The discovery of D-shaped gunshot wounds can guide the forensic pathologist in the ballistic reconstruction of the event by supporting the hypothesis of an interaction with an intermediate target that has led to deviation from the initial trajectory and destabilization of the bullet associated with loss of kinetic energy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
41. Targeted metabolomics detects a putatively diagnostic signature in plasma and dried blood spots from head and neck paraganglioma patients.
- Author
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De Fabritiis, Simone, Valentinuzzi, Silvia, Piras, Gianluca, Cicalini, Ilaria, Pieragostino, Damiana, Pagotto, Sara, Perconti, Silvia, Zucchelli, Mirco, Schena, Alberto, Taschin, Elisa, Berteşteanu, Gloria Simona, Esposito, Diana Liberata, Stigliano, Antonio, De Laurenzi, Vincenzo, Schiavi, Francesca, Sanna, Mario, Del Boccio, Piero, Verginelli, Fabio, and Mariani-Costantini, Renato
- Published
- 2023
- Full Text
- View/download PDF
42. RNA sequencing of blood from sex- and age-matched discordant siblings supports immune and transcriptional dysregulation in autism spectrum disorder.
- Author
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Tomaiuolo, Pasquale, Piras, Ignazio Stefano, Sain, Simona Baghai, Picinelli, Chiara, Baccarin, Marco, Castronovo, Paola, Morelli, Marco J., Lazarevic, Dejan, Scattoni, Maria Luisa, Tonon, Giovanni, and Persico, Antonio M.
- Subjects
- *
AUTISM spectrum disorders , *RNA sequencing , *GENE expression profiling , *GENE expression , *GENE regulatory networks , *IMMUNOREGULATION - Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition with onset in early childhood, still diagnosed only through clinical observation due to the lack of laboratory biomarkers. Early detection strategies would be especially useful in screening high-risk newborn siblings of children already diagnosed with ASD. We performed RNA sequencing on peripheral blood, comparing 27 pairs of ASD children vs their sex- and age-matched unaffected siblings. Differential gene expression profiling, performed applying an unpaired model found two immune genes, EGR1 and IGKV3D-15, significantly upregulated in ASD patients (both p adj = 0.037). Weighted gene correlation network analysis identified 18 co-expressed modules. One of these modules was downregulated among autistic individuals (p = 0.035) and a ROC curve using its eigengene values yielded an AUC of 0.62. Genes in this module are primarily involved in transcriptional control and its hub gene, RACK1, encodes for a signaling protein critical for neurodevelopment and innate immunity, whose expression is influenced by various hormones and known "endocrine disruptors". These results indicate that transcriptomic biomarkers can contribute to the sensitivity of an intra-familial multimarker panel for ASD and provide further evidence that neurodevelopment, innate immunity and transcriptional regulation are key to ASD pathogenesis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
43. Metabolomics analysis of plasma samples of patients with fibromyalgia and electromagnetic sensitivity using GC–MS technique.
- Author
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Piras, Cristina, Pibiri, Monica, Conte, Stella, Ferranti, Gabriella, Leoni, Vera Piera, Liggi, Sonia, Spada, Martina, Muntoni, Sandro, Caboni, Pierluigi, and Atzori, Luigi
- Subjects
- *
GAS chromatography/Mass spectrometry (GC-MS) , *FIBROMYALGIA , *MULTIVARIATE analysis , *METABOLOMICS , *ELECTROMAGNETIC devices , *ENERGY metabolism - Abstract
Fibromyalgia (FM) is a chronic and systemic condition that causes widespread chronic pain, asthenia, and muscle stiffness, as well as in some cases depression, anxiety, and disorders of the autonomic system. The exact causes that lead to the development of FM are still unknown today. In a percentage of individuals, the symptoms of FM are often triggered and/or exacerbated by proximity to electrical and electromagnetic devices. Plasma metabolomic profile of 54 patients with fibromyalgia and self-reported electromagnetic sensitivity (IEI-EMF) were compared to 23 healthy subjects using gas chromatography-mass spectrometry (GC–MS) coupled with multivariate statistical analysis techniques. Before the GC–MS analysis the plasma samples were extracted with a modified Folch method and then derivatized with methoxamine hydrochloride in pyridine solution and N-trimethylsilyltrifuoroacetamide. The combined analysis allowed to identify a metabolomic profile able of distinguishing IEI-EMF patients and healthy subjects. IEI-EMF patients were therefore characterized by the alteration of 19 metabolites involved in different metabolic pathways such as energy metabolism, muscle, and pathways related to oxidative stress defense and chronic pain. The results obtained in this study complete the metabolomic "picture" previously investigated on the same cohort of IEI-EMF patients with 1H-NMR spectroscopy, placing a further piece for better understanding the pathophysiological mechanisms in patients with IEI-EMF. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
44. Dog–human translational genomics: state of the art and genomic resources.
- Author
-
Pallotti, Stefano, Piras, Ignazio S., Marchegiani, Andrea, Cerquetella, Matteo, and Napolioni, Valerio
- Abstract
Innovative models for medical research are strongly required nowadays. Convincing evidence supports dog as the most suitable spontaneous model for several human genetic diseases. Decades of studies on dog genome allowed the identification of hundreds of mutations causing genetic disorders, many of which are proposed as counterparts responsible for human diseases. Traditionally, the murine model is the most extensively used in human translational research. However, this species shows large physiological differences from humans, and it is kept under a controlled artificial environment. Conversely, canine genetic disorders often show pathophysiological and clinical features highly resembling the human counterpart. In addition, dogs share the same environment with humans; therefore, they are naturally exposed to many risk factors. Thus, different branches of translational medicine aim to study spontaneously occurring diseases in dogs to provide a more reliable model for human disorders. This review offers a comprehensive overview of the knowledge and resources available today for all the researchers involved in the field of dog–human translational medicine. Some of the main successful examples from dog–human translational genomics are reported, such as the canine association studies which helped to identify the causal mutation in the human counterpart. We also illustrated the ongoing projects aiming to create public canine big datasets. Finally, specific online databases are discussed along with several information resources that can speed up clinical translational research. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
45. Covid-19 and radiotherapy: a systematic review after 2 years of pandemic.
- Author
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Piras, Antonio, Venuti, Valeria, D'Aviero, Andrea, Cusumano, Davide, Pergolizzi, Stefano, Daidone, Antonino, and Boldrini, Luca
- Published
- 2022
- Full Text
- View/download PDF
46. The otologic approach in the management of posterior petrous surface meningiomas.
- Author
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Sykopetrites, Vittoria, Taibah, Abdelkader, Piras, Gianluca, Giannuzzi, Anna Lisa, Mancini, Fernando, and Sanna, Mario
- Subjects
CEREBELLOPONTILE angle ,EAR ,SPEECH perception ,AUDIOMETRY ,FACIAL nerve ,FISHER exact test ,PAROTIDECTOMY - Abstract
Purpose: Report our experience in the management of posterior petrous surface meningiomas (PPSMs), and identify features that affect hearing, facial nerve (FN) function, and control of the disease. Methods: Retrospective case series of 131 patients surgically managed for PPSMs. FN status, hearing and tumour radicality were assessed and compared between patients with tumours of different locations (Desgeorges classification) and internal auditory canal involvement (IAC). Results: At the time of surgery 74.8% of patients had a hearing loss. Hearing was mostly unserviceable in tumors attached to the meatus. Pure tone audiometry did not correlate to IAC extension, while speech discrimination scores were statistically worse when the tumor occupied the IAC (unpaired t test, p = 0.0152). Similarly, extrameatal tumors undergoing removal by otic preserving techniques maintained postoperative hearing, whereas hearing worsened significantly in tumors involving the IAC (paired t test, p = 0.048). The FN was affected preoperatively in 11.4% of cases. Postoperative FN palsy was significantly correlated to the IAC involvement (Fisher's exact test, p = 0.0013), while it was not correlated to tumor size. According to the Desgeorges classification, a postoperative FN palsy complicated the majority of anteriorly extending tumors and, two-fifths of meatus centred tumors. 75% of posterior located tumors had a postoperative FN grade I HB. Conclusions: Since the involvement of the IAC by the tumor affects both hearing and FN function, the IAC is of primary importance in PPSMs and should be studied and addressed as much as the tumor location in the CPA. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. circCsnk1g3- and circAnkib1-regulated interferon responses in sarcoma promote tumorigenesis by shaping the immune microenvironment.
- Author
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Piras, Roberta, Ko, Emily Y., Barrett, Connor, De Simone, Marco, Lin, Xianzhi, Broz, Marina T., Tessaro, Fernando H. G., Castillo-Martin, Mireia, Cordon-Cardo, Carlos, Goodridge, Helen S., Di Vizio, Dolores, Batish, Mona, Lawrenson, Kate, Chen, Y. Grace, Chan, Keith Syson, and Guarnerio, Jlenia
- Subjects
CIRCULAR RNA ,SARCOMA ,INTERFERONS ,TUMOR growth ,NON-coding RNA ,NEOPLASTIC cell transformation - Abstract
Exonic circular RNAs (circRNAs) produce predominantly non-coding RNA species that have been recently profiled in many tumors. However, their functional contribution to cancer progression is still poorly understood. Here, we identify the circRNAs expressed in soft tissue sarcoma cells and explore how the circRNAs regulate sarcoma growth in vivo. We show that circCsnk1g3 and circAnkib1 promote tumor growth by shaping a pro-tumorigenic microenvironment, possibly due to their capabilities to regulate tumor-promoting elements extrinsic to the tumor cells. Accordingly, circCsnk1g3 and circAnkib1 can control the expression of interferon-related genes and pro-inflammatory factors in the sarcoma cells, thus directing immune cell recruitment into the tumor mass, and hence their activation. Mechanistically, circRNAs may repress pro-inflammatory elements by buffering activation of the pathways mediated by RIG-I, the cytosolic viral RNA sensor. The current findings suggest that the targeting of specific circRNAs could augment the efficacy of tumor and immune response to mainstay therapies. Circular RNAs can contribute to tumour progression. Here the authors show that two circular RNAs, circCsnk1g3 and circAnkib1 promote sarcoma growth by controlling the expression of interferon related genes and pro-inflammatory factors in sarcoma cells [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
48. Studies on archaeological olive fruitstones from the Archaic and Punic periods (7th–3rd century bc) of Sardinia, Italy.
- Author
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Mureddu, Maria, Ucchesu, Mariano, Sarigu, Marco, Del Vais, Carla, Piras, Fabio, Sanna, Ignazio, and Bacchetta, Gianluigi
- Published
- 2022
- Full Text
- View/download PDF
49. Are physicochemical properties shaping the allergenic potency of plant allergens?
- Author
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Laura Martín-Pedraza, Colette Larré, Thomas Holzhauser, Pedro M. Rodrigues, Daniel Lozano-Ojalvo, Karin Hoffmann-Sommergruber, Sara Benedé, Isabel Mafra, Gabriel Mazzucchelli, Tanja Cirkovic-Velickovic, Annette Kuehn, Cristian Piras, Joana Costa, Denise Schrama, Eva Gelencser, Kitty C.M. Verhoeckx, Cristina Bueno-Díaz, Roberta Lupi, Linda Monaci, Araceli Díaz-Perales, Julia Klueber, Caterina Villa, Simona L. Bavaro, Elena Molina, Paola Roncada, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Ministry of Education, Science and Technological Development (Serbia), Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fonds National de la Recherche Luxembourg, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universidade do Porto, Istituto di Bioscienze e BioRisorse [Palermo] (IBBR), Consiglio Nazionale delle Ricerche (CNR), Teagasc Food Research Centre, Food Chemistry and Technology department, Moorepark, Fermoy, Country Cork, Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA), European Cooperation in Science and Technology (COST) Office, European Cooperation in Science and Technology (COST) : FA1402, Portuguese Foundation for Science and Technology, European Commission : UIDB 50006/2020, projects AlleRiskAssess, PTDC/BAA-AGR/31720/2017, NORTE-01-0145-FEDER-00001, FCT - POPH-QREN, PD/BD/114576/2016, Ministry of Education, Science and Technological Development of the Republic of Serbia : OI172024, Portuguese Foundation for Science and Technology European Commission : UIDB/04326/2020, and 16-02-01-FMP0014.Luxembourg National Research FundPRIDE/11012546/NEXTIMMUNEPersonalised Medicine Consortium (PMC), Luxembourg PMC/2017/02
- Subjects
Allergy ,LIPID TRANSFER PROTEIN ,PRU P 3 ,Food processing ,Protein family ,[SDV]Life Sciences [q-bio] ,Plant allergens ,Clinical manifestation ,Computational biology ,Protein aggregation ,Biology ,PEANUT ALLERGENS ,03 medical and health sciences ,Mice ,0302 clinical medicine ,medicine ,Medicine and Health Sciences ,Immunology and Allergy ,Potency ,Animals ,Humans ,ARA H 1 ,SEED STORAGE PROTEINS ,Matrix effect ,ComputingMilieux_MISCELLANEOUS ,Plant Proteins ,2. Zero hunger ,030203 arthritis & rheumatology ,ALPHA-AMYLASE INHIBITOR ,General Medicine ,IN-VITRO DIGESTION ,Allergens ,COMPONENT-RESOLVED DIAGNOSIS ,medicine.disease ,3. Good health ,EXERCISE-INDUCED ANAPHYLAXIS ,Animal allergens ,WHEAT GLUTEN PROTEINS ,Protein families ,Plant protein ,Allergenicity ,Pollen ,Food Hypersensitivity ,030215 immunology - Abstract
This review searched for published evidence that could explain how different physicochemical properties impact on the allergenicity of food proteins and if their effects would follow specific patterns among distinct protein families. Owing to the amount and complexity of the collected information, this literature overview was divided in two articles, the current one dedicated to protein families of plant allergens and a second one focused on animal allergens. Our extensive analysis of the available literature revealed that physicochemical characteristics had consistent effects on protein allergenicity for allergens belonging to the same protein family. For example, protein aggregation contributes to increased allergenicity of 2S albumins, while for legumins and cereal prolamins, the same phenomenon leads to a reduction. Molecular stability, related to structural resistance to heat and proteolysis, was identified as the most common feature promoting plant protein allergenicity, although it fails to explain the potency of some unstable allergens (e.g. pollen-related food allergens). Furthermore, data on physicochemical characteristics translating into clinical effects are limited, mainly because most studies are focused on in vitro IgE binding. Clinical data assessing how these parameters affect the development and clinical manifestation of allergies is minimal, with only few reports evaluating the sensitising capacity of modified proteins (addressing different physicochemical properties) in murine allergy models. In vivo testing of modified pure proteins by SPT or DBPCFC is scarce. At this stage, a systematic approach to link the physicochemical properties with clinical plant allergenicity in real-life scenarios is still missing., The authors highly appreciate the support from the European Cooperation in Science and Technology (COST) Office. This article is based upon work from COST Action FA1402, supported by COST (www.cost.eu). This work was also supported by Fundação para a Ciência e Tecnologia under the Partnership Agreement UIDB 50006/2020 and by the projects AlleRiskAssess - PTDC/BAA-AGR/31720/2017 and NORTE-01-0145-FEDER-00001. C.V. is grateful to FCT grants (PD/BD/114576/2016) financed by POPH-QREN (subsidised by FSE and MCTES). T.C.V. is grateful to the Ministry of Education, Science and Technological Development of the Republic of Serbia through grant number OI172024. P.M.R. and D.S. are grateful to FCT through project UIDB/04326/2020 and Mar2020 16–02-01-FMP-0014 – ‘ALLYFISH’. J.K. and A.K. acknowledge the PRIDE program grant (PRIDE/11012546/NEXTIMMUNE) by the Fonds National de la Recherche (FNR), Luxembourg and a translational grant (APSIS, PMC/2017/02) by the Personalised Medicine Consortium (PMC), Luxembourg.
- Published
- 2021
50. Cerebellar engagement in the attachment behavioral system.
- Author
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Picerni, Eleonora, Laricchiuta, D., Piras, F., Petrosini, L., Spalletta, G., and Cutuli, D.
- Subjects
DIFFUSION tensor imaging ,PREFRONTAL cortex ,ATTACHMENT behavior ,EMOTION regulation ,CEREBELLAR cortex ,SOCIAL skills ,TRAIL Making Test - Abstract
Brain structural bases of individual differences in attachment are not yet fully clarified. Given the evidence of relevant cerebellar contribution to cognitive, affective, and social functions, the present research was aimed at investigating potential associations between attachment dimensions (through the Attachment Style Questionnaire, ASQ) and cerebellar macro- and micro-structural measures (Volumetric and Diffusion Tensor Imaging data). In a sample of 79 healthy subjects, cerebellar and neocortical volumetric data were correlated with ASQ scores at the voxel level within specific Regions Of Interest. Also, correlations between ASQ scores and age, years of education, anxiety and depression levels were performed to control for the effects of sociodemographic and psychological variables on neuroimaging results. Positive associations between scores of the Preoccupation with Relationships (ASQ subscale associated to insecure/anxious attachment) and cortical volume were found in the cerebellum (right lobule VI and left Crus 2) and neocortex (right medial OrbitoFrontal Cortex, OFC) regions. Cerebellar contribution to the attachment behavioral system reflects the more general cerebellar engagement in the regulation of emotional and social behaviors. Cerebellar properties of timing, prediction, and learning well integrate with OFC processing, supporting the regulation of attachment experiences. Cerebellar areas might be rightfully included in the attachment behavioral system. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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