42 results on '"Santella, B."'
Search Results
2. Rhein and oncolytic Herpes simplex virus in hcc treatment
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Ambrosino A, Stelitano D, Dell’Annunziata F, Caruso F, Nastri BM, Chianese A, Santella B, Franci G, Galdiero M, Ambrosino A, Stelitano D, Dell’Annunziata F, Caruso F, Nastri BM, Chianese A, Santella B, Franci G, Galdiero M, Galdiero M, Ambrosino, A, Stelitano, D, Dell’Annunziata, F, Caruso, F, Nastri, Bm, Chianese, A, Santella, B, Franci, G, and Galdiero, M
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- 2021
3. IDENTIFICAZIONE DEI MICRORGANISMI CAUSALI DI INFEZIONI OCULARI E DETERMINAZIONE DEI RELATIVI PROFILI DI RESISTENZA: UNO STUDIO DI COORTE RETROSPETTIVO
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Boccia, G., Manente, R., Santella, B., Serretiello, E., Pirofalo, M. G., Gallo, L., Santoro, E., Camicia, F., Borrelli, A., Lucchese, G., De Paola, V., De Caro, F., Moccia, G., Capunzo, M., Aliberti, S. M., and Franci, G.
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- 2021
4. INCIDENZA DI CO-INFEZIONI E SUPERINFEZIONI NEI PAZIENTI OSPEDALIZZATI CON COVID-19: UNO STUDIO DI COORTE RETROSPETTIVO
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Boccia, G., Santella, B., Serretiello, E., Manente, R., Gallo, L., Camicia, F., Borrelli, A., De Paola, V., Santoro, E., De Caro, F., Moccia, G., Capunzo, M., Pirofalo, M. G., Lucchese, G., Aliberti, S. M., and Franci, G.
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- 2021
5. Comment on: Expressions of MiR-132 in patients with chronic hepatitis B, posthepatitic cirrhosis and hepatitis B virus-related hepatocellular carcinoma
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Santella, B, Pignataro, D, Lavano, MA, Rinaldi, M, Galdiero, F, Santella, B, Pignataro, D, Lavano, Ma, Rinaldi, M, and Galdiero, F
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- 2019
6. Methicillin-resistant Staphylococcus aureus: epidemiology and antimicrobial susceptibility experiences from the University Hospital ‘Luigi Vanvitelli’ of Naples
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Pignataro, D., primary, Foglia, F., additional, Della Rocca, M. T., additional, Melardo, C., additional, Santella, B., additional, Folliero, V., additional, Shinde, S., additional, Pafundi, P. C., additional, Sasso, F.C., additional, Iovene, M. R., additional, Galdiero, M., additional, Boccia, G., additional, Franci, G., additional, and Finamore, E., additional
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- 2020
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7. Comment on: Expressions of MiR-132 in patients with chronic hepatitis B, posthepatitic cirrhosis and hepatitis B virus-related hepatocellular carcinoma.
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Santella, B., Pignataro, D., Lavano, M. A., Rinaldi, M., and Galdiero, F.
- Abstract
The author comments on expressions of MiR-132 in patients with chronic hepatitis B (HBV), posthepatitic cirrhosis and hepatitis B virus-related hepatocellular carcinoma. Topics discussed include risk factors in liver cancer are chronic HBV and Hepatitis C (HCV) infections; views on the replication of hepatitis B virus in body; and evaluation of miRNAs as a molecular marker in hepatocarcinoma.
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- 2019
8. Microbiota and HPV: The role of viral infection on vaginal microbiota
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Biagio Santella, Maria T. Schettino, Gianluigi Franci, Pasquale De Franciscis, Nicola Colacurci, Antonio Schiattarella, Massimiliano Galdiero, Santella, B., Schettino, M. T., Franci, G., De Franciscis, P., Colacurci, N., Schiattarella, A., and Galdiero, M.
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Bacteria ,Microbiota ,Papillomavirus Infections ,Uterine Cervical Neoplasms ,Cervix Uteri ,Infectious Diseases ,RNA, Ribosomal, 16S ,Virology ,uterine cervical neoplasm ,Vagina ,Humans ,Female ,Papillomavirus Infection ,Human - Abstract
The World Health Organization (WHO) estimates that the prevalence of human papillomaviruses (HPV) infection is between 9% and 13% of the world population and only in the United States, more than 6.2 million are positive every year. There are more than 100 types of HPV, among them, two serotypes (16 and 18) are related to 70% of cervical cancers and precancerous cervical lesions. The vaginal microbiota could play a considerable role in HPV infection and the genesis of cervical tumors caused by HPV. Moreover, bacteria are strongly associated with vaginal inflammation and oncogenic mutations in human cells. We aim to investigate whether HPV infection could influence the bacterial microbiota composition in the uterine cervix. A total of 31 women were enrolled in this study. The vaginal swabs were collected; the HPV-DNA was extracted with QIAamp DNA Microbiome. The V3–V4–V6 region of the 16S rDNA gene was amplified by polymerase chain reaction (PCR) followed by sequencing with MiSeq Illumina. The main phylum identified in the vaginal microbiota were Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria. The phylum of Actinobacteria, Proteobacteria, and Bacteroides was more represented in HPV-positive patients. Lactobacilli represented the dominant genus, with a high percentage of Lactobacilli iners, Lactobacilli jensenii, and Lactobacilli crispatus as species. Gardnerella vaginalis, Enterococcus spp., Staphylococcus spp., Proteus spp., and Atopobium were the most represented in HPV-positive patients. An altered vaginal microbiota might play a functional role in HPV cervical infection, progression, and clearance. The relationship between infection and microbiota could spur the development of new probiotics. However, further studies are needed to clarify the role of the vaginal microbiota in HPV infection.
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- 2022
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9. Prevalence and Antimicrobial Resistance of Causative Agents to Ocular Infections
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Roberta Manente, Biagio Santella, Pasquale Pagliano, Emanuela Santoro, Vincenzo Casolaro, Anna Borrelli, Mario Capunzo, Massimiliano Galdiero, Gianluigi Franci, Giovanni Boccia, Manente, R., Santella, B., Pagliano, P., Santoro, E., Casolaro, V., Borrelli, A., Capunzo, M., Galdiero, M., Franci, G., and Boccia, G.
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Microbiology (medical) ,antimicrobial stewardship ,Infectious Diseases ,ocular infection ,Antibiotics ,antibiotic ,bacteria ,antibiotics ,cross-sectional study ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,Biochemistry ,Microbiology - Abstract
Bacterial ocular infections are a worldwide health problem and, if untreated, can damage the structure of the eye and contribute to permanent disability. Knowledge of the prevalence and antimicrobial susceptibility patterns of the main causative agents involved in ocular infections is necessary for defining an optimal antibiotic therapy. The aim of this study was to analyse bacterial species involved in ocular infections and the antimicrobial susceptibility patterns. Conjunctival swab samples were collected from patients with bacterial conjunctivitis at the University Hospital San Giovanni di Dio e Ruggi d’Aragona between January 2015 and December 2019. The identification and antibiotic sensitivity tests were performed using the VITEK 2 system. A total of 281 causative agents of ocular infections were isolated, 81.8% of which were Gram-positive bacteria. Coagulase-negative staphylococci (CoNS) were the most commonly isolated species among Gram-positive bacteria, followed by Staphylococcus aureus. In contrast, Pseudomonas spp. and Escherichia coli were the main species isolated among Gram-negative bacteria (18.2%). Overall, linezolid, teicoplanin, tigecycline and vancomycin were the most effective antimicrobials. Analysis of resistance rates over time highlighted increasing resistance for azithromycin, clarithromycin and erythromycin among CoNS, and clindamycin and erythromycin among Staphylococcus aureus. This study has identified the profiles of the major pathogens involved in ocular infection and their susceptibility patterns, which will help improve the treatments and the choice of antibiotics in ocular infections.
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- 2022
10. Lower respiratory tract pathogens and their antimicrobial susceptibility pattern: A 5-year study
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Domenico Iervolino, Federica Dell'Annunziata, Anna De Filippis, Massimiliano Galdiero, Giovanni Boccia, Enrica Serretiello, Pasquale Pagliano, Folliero Veronica, Emanuela Santoro, Gianluigi Franci, Biagio Santella, Roberta Manente, Francesco Valitutti, Santella, B., Serretiello, E., De Filippis, A., Veronica, F., Iervolino, D., Dell'Annunziata, F., Manente, R., Valitutti, F., Santoro, E., Pagliano, P., Galdiero, M., Boccia, G., and Franci, G.
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0301 basic medicine ,Microbiology (medical) ,Cefotaxime ,medicine.drug_class ,Epidemiology ,030106 microbiology ,Antibiotics ,Tigecycline ,RM1-950 ,Antimicrobial stewardship ,Antimicrobial resistance ,Biochemistry ,Microbiology ,Article ,Lower respiratory tract infection ,antimicrobial stewardship ,03 medical and health sciences ,Antibiotic resistance ,Nosocomial infections ,medicine ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,Lower respiratory tract infections ,biology ,business.industry ,biology.organism_classification ,Acinetobacter baumannii ,Ciprofloxacin ,030104 developmental biology ,Infectious Diseases ,Amikacin ,lower respiratory tract infections ,Colistin ,Therapeutics. Pharmacology ,business ,medicine.drug - Abstract
Lower respiratory tract infections (LRTIs) are the most common infections in humans. It is estimated that 2.74 million deaths worldwide occur each year due to LRTIs. The aim of the study was to determine the frequency and antibiotic susceptibility pattern of microorganisms isolated from respiratory samples of patients with LRTIs. Between January 2015 and December 2019, a total of 7038 sputum and bronchoaspirate samples from suspected LRTI patients were collected. Among them, 2753 samples (39.1%) showed significant microbial growth on culture media. The LRTI rate was higher in patients with male gender (67.1%) and with age between 40–59 years (48.6%). The microorganism identification and antibiotic susceptibility testing were performed with Vitek 2. Out of 4278 isolates species, 3102 (72.5%) were Gram-negative bacteria, 1048 (24.5%) were Gram-positive bacteria, and 128 (3.0%) were Candida spp. Major microorganisms isolated were Acinetobacter baumannii (18.6%), Staphylococcus aureus (15.2%), Pseudomonas aeruginosa (14.2%), and Klebsiella pneumoniae (10.9%). In antimicrobial susceptibility testing, Staphylococcus aureus isolates were mostly resistant to Penicillin G (84.1%) and Oxacillin (48.1%), whereas they demonstrated maximum sensitivity to Tigecycline (100%) and Linezolid (99.5%). Among Gram-negative isolates, Acinetobacter baumannii showed maximum sensitivity to Colistin but was resistant to other antibiotics (95–99%). Klebsiella pneumoniae isolates were mostly resistant to Cefotaxime (72.7%) and sensitive to Gentamicin (54.3%), and Pseudomonas aeruginosa was resistant to Ciprofloxacin (40.3%) and sensitive to Amikacin (85.9%). Gram-negative bacteria represented the species most commonly isolated. A high rate of antimicrobial resistance was observed in this study. In conclusion, the correct identification of causative microorganisms and their susceptibility patterns to antibiotics is crucial for choosing targeted and effective antibiotic therapy in LRTIs, and to prevent the emergence of multidrug-resistant bacteria.
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- 2021
11. Microbiota thrombus colonization may influence athero-thrombosis in hyperglycemic patients with ST segment elevation myocardialinfarction (STEMI). Marianella study
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Massimiliano Galdiero, Michele Torella, Fabio Minicucci, Michelangela Barbieri, Ferdinando Carlo Sasso, Maria Antonietta Lepore, Fabrizio Turriziani, Veronica Folliero, Giuseppe Paolisso, Maria Luisa Balestrieri, Marisa De Feo, Raffaele Marfella, Biagio Santella, Michele Portoghese, Ciro Mauro, Danilo Ercolini, Arianna Petrillo, Celestino Sardu, Lara Boatti, Paolo Calabrò, Michele D'Amico, Maria Consiglia Trotta, Simone Mureddu, Lucia Scisciola, Maria Rosaria Rizzo, Marilena Galdiero, Francesco Loreni, Gianluigi Franci, Nunzia D'Onofrio, Sardu, C., Trotta, M. C., Santella, B., D'Onofrio, N., Barbieri, M., Rizzo, M. R., Sasso, F. C., Scisciola, L., Turriziani, F., Torella, M., Portoghese, M., Loreni, F., Mureddu, S., Lepore, M. A., Galdiero, M., Franci, G., Folliero, V., Petrillo, A., Boatti, L., Minicucci, F., Mauro, C., Calabro, P., Feo, M. D., Balestrieri, M. L., Ercolini, D., D'Amico, M., Paolisso, G., and Marfella, R.
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Male ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,030209 endocrinology & metabolism ,TMAO ,STEMI ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Percutaneous Coronary Intervention ,Diabetes mellitus ,Internal medicine ,Internal Medicine ,medicine ,Prevotella ,ST segment ,Humans ,030212 general & internal medicine ,Myocardial infarction ,cardiovascular diseases ,Prospective Studies ,Thrombus ,Aged ,biology ,business.industry ,Microbiota ,Coronary Thrombosis ,Primary percutaneous coronary intervention ,Percutaneous coronary intervention ,Thrombosis ,General Medicine ,Middle Aged ,medicine.disease ,biology.organism_classification ,Treatment Outcome ,Hyperglycemia ,Female ,ST Elevation Myocardial Infarction ,Thrombu ,Cardiology ,cardiovascular system ,business ,Mace ,circulatory and respiratory physiology - Abstract
Objectives: We examined the association of the coronary thrombus microbiota and relative metabolites with major adverse cardiovascular events (MACE) in hyperglycemic patients with ST segment elevation myocardial infarction (STEMI). Background: Hyperglycemia during STEMI may affect both development and progression of coronary thrombus via gut and thrombus microbiota modifications. Methods: We undertook an observational cohort study of 146 first STEMI patients treated with primary percutaneous coronary intervention (PPCI) and thrombus-aspiration (TA). Patients were clustered, based on admission blood glucose levels, in hyperglycemic (≥140 mg/dl) and normoglycemic (
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- 2021
12. Oncolytic viruses in combination therapeutic approaches with epigenetic modulators: Past, present, and future perspectives
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Luca Rinaldi, Debora Stelitano, Annalisa Chianese, Massimiliano Galdiero, Carla Zannella, Biagio Santella, Gianluigi Franci, Annalisa Ambrosino, Chianese, A., Santella, B., Ambrosino, A., Stelitano, D., Rinaldi, L., Galdiero, M., Zannella, C., and Franci, G.
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0301 basic medicine ,Cancer Research ,DNA methyltransferase ,Review ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Viral entry ,Medicine ,Epigenetics ,Histone deacetylase ,Virotherapy ,HCC ,Survival rate ,RC254-282 ,oncolytic virus ,Cancer ,Combination treatment ,Epigenetic ,Histone deacetylases ,MicroRNA ,Oncolytic virus ,Tumor resistance ,business.industry ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Oncolytic viru ,medicine.disease ,Clinical trial ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Cancer research ,business ,histone deacetylases - Abstract
Simple Summary Cancer rates have been accelerating significantly in recent years. Despite notable advances having been made in cancer therapy, and numerous studies being currently conducted in clinical trials, research is always looking for new treatment. Novel and promising anticancer therapies comprise combinations of oncolytic viruses and epigenetic modulators, including chromatin modifiers, such as DNA methyltransferase and histone deacetylases, and microRNA. Combinatorial treatments have several advantages: they enhance viral entry, replication, and spread between proximal cells and, moreover, they strengthen the immune response. In this review we summarize the main combination of therapeutic approaches, giving an insight into past, present, and future perspectives. Abstract According to the World Cancer Report, cancer rates have been increased by 50% with 15 million new cases in the year 2020. Hepatocellular carcinoma (HCC) is the only one of the most common tumors to cause a huge increase in mortality with a survival rate between 40% and 70% at 5 years, due to the high relapse and limitations associated with current therapies. Despite great progress in medicine, oncological research is always looking for new therapies: different technologies have been evaluated in clinical trials and others have been already used in clinics. Among them, oncolytic virotherapy represents a therapeutic option with a widespread possibility of approaches and applications. Oncolytic viruses are naturally occurring, or are engineered, viruses characterized by the unique features of preferentially infecting, replicating, and lysing malignant tumor cells, as well as activating the immune response. The combination of oncolytic virotherapy and chemical drugs are arousing great interest in the tumor treatment. In this scenario, novel and promising anticancer therapies comprise combinations of oncolytic viruses and epigenetic modulators or inhibitors of the signalling pathways. Combination treatments are required to improve the immune response and allow viral entry, replication, and diffusion between proximal cells. In this review, we summarize all combination therapies associated with virotherapy, including co-administered inhibitors of chromatin modifiers (combination strategies) and inserted target sites for miRNAs (recombination or arming strategies).
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- 2021
13. Antimicrobial susceptibility patterns and resistance trends of staphylococcus aureus and coagulase-negative staphylococci strains isolated from ocular infections
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Matteo Fallico, Giovanni Boccia, Teresio Avitabile, Francesco Petrillo, Maria Consiglia Trotta, Veronica Folliero, Michele Rinaldi, Michele Reibaldi, Biagio Santella, Federica Maria Di Lella, Danilo Pignataro, Michele D'Amico, Maria Teresa Della Rocca, Marilena Galdiero, Niccolò Castellino, Gianluigi Franci, Guglielmo Parisi, Petrillo, F., Pignataro, D., Di Lella, F. M., Reibaldi, M., Fallico, M., Castellino, N., Parisi, G., Trotta, M. C., D'Amico, M., Santella, B., Folliero, V., Della Rocca, M. T., Rinaldi, M., Franci, G., Avitabile, T., Galdiero, M., and Boccia, G.
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0301 basic medicine ,Microbiology (medical) ,genetic structures ,medicine.drug_class ,030106 microbiology ,Antibiotics ,Drug resistance ,RM1-950 ,medicine.disease_cause ,Biochemistry ,Microbiology ,Article ,03 medical and health sciences ,Hospital ,0302 clinical medicine ,Antibiotic resistance ,Medicine ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,Eye infection ,business.industry ,Bacterial ,Eye infections ,Hospitals ,Methicillin-resistant staphylococcus aureus ,Sulfamethoxazole ,Methicillin-resistant Staphylococcus aureus ,Trimethoprim ,Infectious Diseases ,030221 ophthalmology & optometry ,Therapeutics. Pharmacology ,sense organs ,Coagulase ,business ,medicine.drug - Abstract
Ocular bacterial infections represent a serious problem that affecting people of all age and genders. These infections can lead to visual impairment and blindness if not properly treated. The current study evaluates the antimicrobial resistance profiles and the resistance trend of both Staphylococcus aureus (S. aureus) and coagulase-negative staphylococci (CoNS), the main pathogens involved in eye infections. A total of 322 isolates of S. aureus and CoNS, were collected from patients with bacterial conjunctivitis and keratitis at the “Luigi Vanvitelli” University Hospital of Campania in Naples, Italy, between 2017 and 2020. The isolated bacteria showed a high percentage of resistance to methicillin and other antibiotics commonly used for the treatment of ocular infections. Trends in antibiotic resistance were not encouraging, recording—especially among CoNS strains—an increase of more than 20% in resistance to methicillin and aminoglycosides during the study period. Instead, the resistance rates to tetracycline had a significant decrease in CoNS isolates while no changes in their susceptibility to fluoroquinolones and macrolides were observed. However, all isolates showed no resistance to trimethoprim/sulfamethoxazole and chloramphenicol. In this scenario, preventive identification of the infection causative agents and the evaluation of the antimicrobial susceptibility patterns are essential to set up an ocular infection effective drug treatment and also prevent antibiotic resistance.
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- 2021
14. Prevalence and antibiotic resistance profile of bacterial pathogens in aerobic vaginitis: A retrospective study in italy
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Valeria Crudele, Federica Dell'Annunziata, Gianluigi Franci, Massimiliano Galdiero, Anna De Filippis, Biagio Santella, Roberta Manente, Domenico Iervolino, Giovanni Boccia, Veronica Folliero, Rossella Sperlongano, Emanuela Santoro, Enrica Serretiello, Serretiello, E., Santella, B., Folliero, V., Iervolino, D., Santoro, E., Manente, R., Dell'Annunziata, F., Sperlongano, R., Crudele, V., De Filippis, A., Galdiero, M., Franci, G., and Boccia, G.
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Microbiology (medical) ,RM1-950 ,Tigecycline ,Antimicrobial resistance ,Biochemistry ,Microbiology ,Article ,Enterococcus faecalis ,chemistry.chemical_compound ,Antibiotic resistance ,medicine ,Aerobic vaginitis ,Antibiotic treatment ,Multi-drug resistance ,Pharmacology (medical) ,General Pharmacology, Toxicology and Pharmaceutics ,biology ,business.industry ,Teicoplanin ,Aerobic vaginiti ,biochemical phenomena, metabolism, and nutrition ,biology.organism_classification ,Infectious Diseases ,chemistry ,Amikacin ,Linezolid ,Vancomycin ,Therapeutics. Pharmacology ,business ,medicine.drug ,Enterococcus faecium - Abstract
Aerobic vaginitis (AV) is a vaginal infectious condition, characterized by a high inflammatory response and/or signs of epithelial atrophy, a decrease in the amount of Lactobacillus spp. and an increase in enteric origin bacteria. AV, often misdiagnosed, is difficult to treat due to the emerging spread of multi-drug resistant bacterial strains. The present study aimed to define the prevalence of AV, to detect causative bacteria and their antimicrobial resistance pattern. Women 10–95 years old, admitted to San Giovanni di Dio e Ruggi d’Aragona Hospital, Salerno, Italy (in the years 2015–2019) are included in the study. Bacterial identification and antibiotic susceptibility tests were carried out by VITEK® 2. Among 2069 patients, 1176 tested positive for microbial growth. A higher incidence of infection was found in the 55–64 age group. Among the pathogenic strains, 50.4% were Gram-negative, and 49.6% were Gram-positive. Escherichia coli (E. coli) (32.5%) was the most representative strain, followed by Enterococcus faecalis (E. faecalis) (29.4%), Klebsiella pneumoniae (K. pneumoniae) (7.8%) and Enterococcus faecium (E. faecium) (7.7%). E. coli showed high sensitivity to carbapenems and amikacin. K. pneumoniae carbapenems resistance was fluctuating over time. Alarming resistance to vancomycin was not recorded for Enterococci. Both strains were sensitive to teicoplanin, linezolid and tigecycline. Proper diagnosis and an effective therapeutic approach are needed to improve AV management.
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- 2021
15. Antibacterial Activity of Indolicidin-Coated Silver Nanoparticles in Oral Disease
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Emilia Galdiero, Marina Di Domenico, Biagio Santella, Gianluigi Franci, Ludovica Nucci, Marilena Galdiero, Amir Fahmi, Annarita Falanga, Roberta Gasparro, Mariarosaria Boccellino, Surbhi Shinde, Carla Zannella, Mariateresa Vitiello, Zannella, C., Shinde, S., Vitiello, M., Falanga, A., Galdiero, E., Fahmi, A., Santella, B., Nucci, L., Gasparro, R., Galdiero, M., Boccellino, M., Franci, G., and Di Domenico, M.
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0301 basic medicine ,silver nanoparticles ,Gram-negative bacteria ,antimicrobial peptide ,Gram-positive bacteria ,030106 microbiology ,Antimicrobial peptides ,lcsh:Technology ,Silver nanoparticle ,Microbiology ,lcsh:Chemistry ,03 medical and health sciences ,Minimum inhibitory concentration ,General Materials Science ,oral disease ,Instrumentation ,lcsh:QH301-705.5 ,Fluid Flow and Transfer Processes ,biology ,Chemistry ,lcsh:T ,Process Chemistry and Technology ,General Engineering ,biology.organism_classification ,Antimicrobial ,lcsh:QC1-999 ,Computer Science Applications ,030104 developmental biology ,lcsh:Biology (General) ,lcsh:QD1-999 ,lcsh:TA1-2040 ,Indolicidin ,Antibacterial activity ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Physics - Abstract
(1) Background: In dentistry, silver nanoparticles (AgNPs) have progressively earned great interest as antimicrobial drugs and are widely used in several biomedical fields. Recent progress in the analysis of complex bacterial communities has demonstrated the richness of the oral microbiota and the presence of numerous previously unexplained strains. Several efforts have been dedicated to the investigation of antimicrobial peptides (AMPs). Those peptides are a widespread group of small peptides against invading microbes. We report the production of a hybrid molecule composed of AgNPs and indolicidin, a well-known antibacterial peptide. (2) Methods: Spectroscopy and microscopy were used to analyze the optical features and to determine the size of the generated AgNPs. The AgNP antibacterial activity was evaluated versus oral Gram-positive and Gram-negative bacteria. (3) Results: The coated nanoparticles&rsquo, antibacterial activity strongly inhibited the growth of microorganisms, with very low minimum inhibitory concentration (MIC) values in the range of 5&ndash, 12.5 &mu, g/mL. We hypothesize that this effect depended on the specific characteristics of the metal surface coated with indolicidin. The second result was that the coated nanoparticles observed cellular toxicity, was lower with respect to the toxicity of peptide and the naked AgNPs when used individually. (4) New investigations regarding antimicrobial effect of AgNPs coated with AMPs in oral infections are an urgent task.
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- 2020
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16. Methicillin-resistant Staphylococcus aureus: epidemiology and antimicrobial susceptibility experiences from the University Hospital 'Luigi Vanvitelli' of Naples
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D. Pignataro, F. Foglia, M. T. Della Rocca, C. Melardo, B. Santella, V. Folliero, S. Shinde, P. C. Pafundi, F.C. Sasso, M. R. Iovene, M. Galdiero, G. Boccia, G. Franci, E. Finamore, Pignataro, D., Foglia, F., Della Rocca, M. T., Melardo, C., Santella, B., Folliero, V., Shinde, S., Pafundi, P. C., Sasso, F. C., Iovene, M. R., Galdiero, M., Boccia, G., Franci, G., and Finamore, E.
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medicine.medical_specialty ,phenotype ,medicine.drug_class ,Antibiotics ,vancomycin ,Antimicrobial susceptibility ,MLSB phenotypes ,macromolecular substances ,Microbial Sensitivity Tests ,Methicillin-resistant Staphylococcus aureus ,antibiotic susceptibility patterns ,healthcare infections ,medicine.disease_cause ,Microbiology ,MLS ,Hospitals, University ,Methicillin-resistant Staphylococcus aureu ,antibiotic susceptibility pattern ,healthcare infection ,Epidemiology ,Drug Resistance, Bacterial ,Medicine ,Humans ,business.industry ,Public Health, Environmental and Occupational Health ,General Medicine ,biochemical phenomena, metabolism, and nutrition ,Staphylococcal Infections ,University hospital ,bacterial infections and mycoses ,Anti-Bacterial Agents ,Infectious Diseases ,Italy ,Staphylococcus aureus ,Vancomycin ,Parasitology ,business ,medicine.drug ,Research Article - Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the important pathogens worldwide showing resistance to several widely used antibiotics. This has made the treatment of MRSA infections harder, especially due to their prevalence in the hospital setting. We evaluated the antibiotic susceptibility patterns of healthcare-associated MRSA infections with a focus on Vancomycin Intermediate S. Aureus (VISA) and macrolide-licosamide-streptogramin B (MLS(B)) phenotypes. A total of 417 Staphylococcus aureus (S. aureus) cases were isolated between January 2017 and December 2018, through several clinical specimens collected from the University Hospital ‘Luigi Vanvitelli’ of Naples. We identified bacterial strains using Matrix-Assisted Laser Desorption/Ionization-Time of Flight (MALDI-TOF) and antimicrobial susceptibility using Phoenix BD (Becton Dickinson, NJ, USA). Out of the total 417 S. aureus cases, 140 were MRSA (33.6%) and of these, 50% were soft tissue infections. All MRSA and Methicillin sensible S.aureus MSSA isolates were susceptible to linezolid and daptomycin. Two MRSA cases exhibited intermediate resistance to vancomycin and were of constitutive MLS(B) phenotype. Among the MRSA strains, 11.4% were constitutive and 43.6% were inducible MLS(B) phenotypes and 8.6% were macrolide-streptogramin B phenotype. This study characterized the epidemiological status, antibiotic resistance patterns, and current prevalent phenotypes of healthcare-associated MRSA. This knowledge can aid clinicians in improving the antimicrobial stewardship program by adapting appropriate guidelines for the proper use of MRSA antibacterial agents.
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- 2020
17. Prevalence and Antimicrobial Resistance of Enterococcus Species: A Retrospective Cohort Study in Italy
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Mariarosaria Boccella, Biagio Santella, Pasquale Pagliano, Anna De Filippis, Vincenzo Casolaro, Massimiliano Galdiero, Anna Borrelli, Mario Capunzo, Giovanni Boccia, Gianluigi Franci, Boccella, M., Santella, B., Pagliano, P., De Filippis, A., Casolaro, V., Galdiero, M., Borrelli, A., Capunzo, M., Boccia, G., and Franci, G.
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Microbiology (medical) ,Microbial infections ,Enterococcus spp ,RM1-950 ,biochemical phenomena, metabolism, and nutrition ,Biochemistry ,Microbiology ,Antimicrobial sensitivity ,Infectious Diseases ,Empiric therapy ,Pharmacology (medical) ,Therapeutics. Pharmacology ,General Pharmacology, Toxicology and Pharmaceutics ,antimicrobial sensitivity ,microbial infections ,empiric therapy - Abstract
Antimicrobial resistance represents one of the main threats to healthy ecosystems. In recent years, among the multidrug-resistant microorganisms responsible for nosocomial infections, the Enterococcus species have received much attention. Indeed, Enterococcus have peculiar skills in their ability to acquire resistance genes and to cause severe diseases, such as endocarditis. This study showed the prevalence and antimicrobial resistance rate of Enterococcus spp. isolated from clinical samples, from January 2015 to December 2019 at the University Hospital “San Giovanni di Dio e Ruggi d’Aragona” in Salerno, Italy. A total of 3236 isolates of Enterococcus faecalis (82.2%) and Enterococcus faecium (17.8%) were collected from urine cultures, blood cultures, catheters, respiratory tract, and other samples. Bacterial identification and antibiotic susceptibility were performed with VITEK 2. E. faecium showed a high resistance rate against ampicillin (84.5%), ampicillin/sulbactam (82.7%), and imipenem (86.7%), while E. faecalis showed the highest resistance rate against gentamicin and streptomycin high level, but both were highly sensitive to such antibiotics as tigecycline and vancomycin. Studies of surveillance are an important tool to detect changes in the resistance profiles of the main pathogens. These antimicrobial susceptibility patterns are necessary to improve the empirical treatment guideline of infections.
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- 2021
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18. The emerging tick-borne Crimean-Congo haemorrhagic fever virus: A narrative review
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Debora Stelitano, Massimiliano Galdiero, Enrica Serretiello, Carla Zannella, Annalisa Chianese, Marilena Galdiero, Veronica Folliero, Roberta Astorri, Biagio Santella, Gianluigi Franci, Serretiello, E., Astorri, R., Chianese, A., Stelitano, D., Zannella, C., Folliero, V., Santella, B., Galdiero, M., and Franci, G.
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medicine.medical_specialty ,Ixodidae ,030231 tropical medicine ,Disease ,Genome, Viral ,Biology ,Arbovirus ,Virus ,Haemorrhagic fever ,03 medical and health sciences ,0302 clinical medicine ,Ticks ,Hyalomma ,Epidemiology ,CCHF ,Ribavirin ,medicine ,Animals ,Humans ,030212 general & internal medicine ,Bunyavirales ,Mortality rate ,Zoonosis ,Public Health, Environmental and Occupational Health ,Outbreak ,medicine.disease ,biology.organism_classification ,Virology ,Infectious Diseases ,Tick-Borne Diseases ,Hemorrhagic Fever Virus, Crimean-Congo ,Hemorrhagic Fever, Crimean - Abstract
Crimean-Congo Haemorrhagic Fever (CCHF) is an increasingly relevant viral zoonosis caused by the negative-sense single-stranded (ss) RNA Crimean-Congo Haemorrhagic Fever Orthonairovirus (CCHFV) (Nairoviridae family, Bunyavirales order). The viral genome is divided into three segments (L-M-S) of distinct size and functions. The infection is generally mediated by a tick vector, in particular belonging to the Hyalomma genus, and the transmission follows a tick-vertebrate-tick ecologic cycle, with asymptomatic infected animals functioning as reservoirs and amplifiers for CCHFV. Human hosts could be infected primarily through infected ticks or by contact with infected hosts or their body fluids and tissues, also in a nosocomial way and in occupational contexts. Infected symptomatic patients generally manifest a nonspecific illness, which progresses across four stages, with possibly lethal outcomes. Disease outbreaks show a widespread geographic diffusion and a highly variable mortality rate, dramatically peaking in untreated patients. The lack of an adequate animal model and the elevated virus biological risk (only manageable under biosafety level 4 conditions) represent strongly limiting factors for a better characterization of the disease and for the development of specific therapies and vaccines. The present review discusses updated information on CCHFV-related disease, including details about the virus (taxonomy, structure, life cycle, transmission modalities) and considering CCHF pathogenesis, epidemiology and current strategies (diagnostic, therapeutic and preventive).
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- 2019
19. Impact of ESKAPE Pathogens on Bacteremia: A Three-Year Surveillance Study at a Major Hospital in Southern Italy.
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De Prisco M, Manente R, Santella B, Serretiello E, Dell'Annunziata F, Santoro E, Bernardi FF, D'Amore C, Perrella A, Pagliano P, Boccia G, Franci G, and Folliero V
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Background/objectives: ESKAPE pathogens ( Enterococcus faecium , Staphylococcus aureus , Klebsiella pneumoniae , Acinetobacter baumannii , Pseudomonas aeruginosa , and Enterobacter spp.) pose a serious public health threat as they are resistant to multiple antimicrobial agents. Bloodstream infections (BSIs) caused by ESKAPE bacteria have high mortality rates due to the limited availability of effective antimicrobials. This study aimed to evaluate the prevalence and susceptibility of ESKAPE pathogens causing BSIs over three years in a large tertiary hospital in Salerno., Methods: Conducted at the Clinical Microbiology Laboratory of San Giovanni di Dio e ''Ruggi D'Aragona'' Hospital from January 2020 to December 2022, blood culture samples from different departments were incubated in the BD BACTEC™ system for 5 days. Species identification was performed using MALDI-TOF MS, and antimicrobial resistance patterns were determined by the VITEK2 system., Results: Out of 3197 species isolated from positive blood cultures, 38.7% were ESKAPE bacteria. Of these, 59.9% were found in blood culture samples taken from men, and the most affected age group was those aged >60 years. (70.6%). Staphylococcus aureus was the main BSI pathogen (26.3%), followed by Klebsiella pneumoniae (15.8%). Significant resistance rates were found, including 35% of Staphylococcus aureus being resistant to oxacillin and over 90% of Acinetobacter baumannii being resistant to carbapenems., Conclusions: These results highlight the urgent need for antimicrobial stewardship programs to prevent incurable infections.
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- 2024
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20. Adding Branched-Chain Amino Acids and Vitamin D to Whey Protein Is More Effective than Protein Alone in Preserving Fat Free Mass and Muscle Strength in the First Month after Sleeve Gastrectomy.
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Schiavo L, Santella B, Paolini B, Rahimi F, Giglio E, Martinelli B, Boschetti S, Bertolani L, Gennai K, Arolfo S, Bertani MP, and Pilone V
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- Humans, Male, Female, Adult, Middle Aged, Weight Loss, Prospective Studies, Body Composition drug effects, Whey Proteins administration & dosage, Amino Acids, Branched-Chain administration & dosage, Gastrectomy methods, Vitamin D administration & dosage, Dietary Supplements, Muscle Strength drug effects
- Abstract
Objectives: Sleeve gastrectomy (SG) is one of the most commonly performed weight loss (WL) bariatric procedures. The main goal of WL is reducing total body weight (TBW) and fat mass (FM). However, TBW loss is systematically accompanied by a decline in fat-free mass (FFM), predominantly in the first post-surgical month, despite protein supplementation. Branched-chain amino acids (BCAAs) and vitamin D seem to attenuate loss of FFM and, thus, reduce the decline in muscle strength (MS). However, data on the role of an integrated supplementation with whey protein plus BCAAs plus vitamin D (P+BCAAs+Vit.D) vs. protein alone on total weight loss (TWL), fat mass (FM), fat-free mass (FFM), and (MS) in the first month after SG are lacking. Therefore, the present study aims to evaluate the impact of P+BCAAs+Vit.D vs. protein alone supplementation on TWL, FM, FFM, and MS in the first month after SG., Materials and Methods: Before SG and at 1 month afterward, we prospectively measured and compared TBW, FM, FFM, and MS in 57 patients who received either a supplementation with P+BCAAs+Vit.D (n = 31) or protein alone (n = 26). The impact of P+BCAAs+Vit.D and protein alone supplementation on clinical status was also evaluated., Results: Despite non-significant variation in TBW, FM decreased more significantly (18.5% vs. 13.2%, p = 0.023) with the P+BCAA+Vit.D supplementation compared to protein alone. Furthermore, the P+BCAA+Vit.D group showed a significantly lower decrease in FFM (4.1% vs. 11.4%, p < 0.001) and MS (3.8% vs. 18.5%, p < 0.001) compared to the protein alone group. No significant alterations in clinical status were seen in either group., Conclusion: P+BCAA+Vit.D supplementation is more effective than protein alone in determining FM loss and is associated with a lower decrease in FFM and MS, without interfering with clinical status in patients 1 month after SG.
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- 2024
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21. Antimicrobial Susceptibility Profiles of Klebsiella pneumoniae Strains Collected from Clinical Samples in a Hospital in Southern Italy.
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Santella B, Boccella M, Folliero V, Iervolino D, Pagliano P, Fortino L, Serio B, Vozzella EA, Schiavo L, Galdiero M, Capunzo M, Boccia G, and Franci G
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Infections caused by antibiotic-resistant bacteria represent a serious threat to global public health. Recently, due to its increased resistance to carbapenems and β -lactams, Klebsiella pneumoniae has become one of the main causes of septicemia, pneumonia, and urinary tract infections. It is crucial to take immediate action and implement effective measures to prevent further spread of this issue. This study aims to report the prevalence and antibiotic resistance rates of K. pneumoniae strains isolated from clinical specimens from 2015 to 2020 at the University Hospital of Salerno, Italy. More than 3,800 isolates were collected from urine cultures, blood cultures, respiratory samples, and others. K. pneumoniae isolates showed broad resistance to penicillin and cephalosporins, and increased susceptibility to fosfomycin and gentamicin. Extended spectrum beta-lactamase (ESBL) isolates accounted for 20-22%. A high percentage of strains tested were resistant to carbapenems, with an average of 40% to meropenem and 44% to ertapenem. The production of ESBLs and resistance to carbapenems is one of the major public health problems. Constant monitoring of drug-resistant isolates is crucial for developing practical approaches in implementing antimicrobial therapy and reducing the spread of K. pneumoniae in nosocomial environments., Competing Interests: The authors declare that there are no conflicts of interest regarding the publication of this paper., (Copyright © 2024 Biagio Santella et al.)
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- 2024
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22. Current Epidemiological Status and Antibiotic Resistance Profile of Serratia marcescens .
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Cosimato I, Santella B, Rufolo S, Sabatini P, Galdiero M, Capunzo M, Boccia G, Folliero V, and Franci G
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The spread of antibiotic resistance represents a serious worldwide public health issue, underscoring the importance of epidemiology research in determining antimicrobial strategies. The purpose of this research was to investigate antibiotic resistance in Serratia marcescens isolates from clinical samples over seven years at the University Hospital "San Giovanni di Dio e Ruggi d'Aragona" in Salerno, Italy. S. marcescens is an important opportunistic pathogen associated with a wide spectrum of clinical diseases, including pneumonia, keratitis, meningitis, and urinary tract and wound infections. Outbreaks of nosocomial infections by S. marcescens strains have been documented in high-risk settings, mainly affecting immunocompromised patients and newborns. The primary objective of this study is to assess the rates of antibiotic resistance over the years to deal with a future emergency which includes the failure of various therapies due to antibiotic resistance. During the investigation, a total of 396 species of S. marcescens were isolated from various clinical samples, mainly from broncho-aspirates and sputum (31.6%) and blood cultures (21.5%). Antibiotics that showed the greatest susceptibility included ceftazidime/avibactam, amikacin, trimethoprim/sulfamethoxazole, and selected members of the cephalosporin class. However, a disconcerting trend of increasing rates of carbapenem resistance was outlined over the observation period. The absence of effective countermeasures, combined with growing antibiotic resistance that negates the effectiveness of multiple antibiotics, highlights the potential for S. marcescens infections to trigger serious clinical complications and increased mortality rates. The surveillance of Serratia marcescens infections constitutes a pivotal element in refining empiric therapy to mitigate the dissemination of antimicrobial resistance.
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- 2024
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23. Scale of Assessment of Caregiver Care Burden of People With Dementia: A Systematic Review of Literature.
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Strini V, Prendin A, Cerrone V, Schiavolin R, de Barbieri I, Andretta V, Fortino L, Santella B, Franci G, Capunzo M, and Boccia G
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Cases of dementia have increased significantly in recent years. The family represents the main cornerstone of assistance to the elderly suffering from dementia, in particular the caregiver. Family members who take on the role of caregiver are subjected to physical, psychological, emotional, social and financial stress, which can be conceptualised with the term "burden". The aim of this study was to investigate which tools are best suited to measure the type of burden based on the type of dementia for each caregiver. A literature search was undertaken in MEDLINE, CINHAL and The Cochrane Database in September 2022, including articles from the last 20 years and using a combination of keywords and defined inclusion criteria. This literature review has been performed according to the PRISMA statement. From a total of 116 articles regarding the use of burden rating scales for caregivers, 18 scales were selected. The review provides a useful overview of burden assessment scales, classified into three categories, one-dimensional, multidimensional, or distinct concept with a subjective and objective component, in order to adopt appropriate strategies to assess caregiver burden and improve the quality of their health, both in the community and in hospitals. Indeed, the domestic context is the most studied as there is a greater risk of developing the burden of the caregiver: for this reason, some scales include the assessment of both the caregiver and the patient receiving treatment., (© 2023 Universit a di Salerno.)
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- 2023
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24. Repurposing Selamectin as an Antimicrobial Drug against Hospital-Acquired Staphylococcus aureus Infections.
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Folliero V, Dell'Annunziata F, Santella B, Roscetto E, Zannella C, Capuano N, Perrella A, De Filippis A, Boccia G, Catania MR, Galdiero M, and Franci G
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The emergence of multidrug-resistant strains requires the urgent discovery of new antibacterial drugs. In this context, an antibacterial screening of a subset of anthelmintic avermectins against gram-positive and gram-negative strains was performed. Selamectin completely inhibited bacterial growth at 6.3 μg/mL concentrations against reference gram-positive strains, while no antibacterial activity was found against gram-negative strains up to the highest concentration tested of 50 μg/mL. Given its relevance as a community and hospital pathogen, further studies have been performed on selamectin activity against Staphylococcus aureus ( S. aureus ), using clinical isolates with different antibiotic resistance profiles and a reference biofilm-producing strain. Antibacterial studies have been extensive on clinical S. aureus isolates with different antibiotic resistance profiles. Mean MIC
90 values of 6.2 μg/mL were reported for all tested S. aureus strains, except for the macrolide-resistant isolate with constitutive macrolide-lincosamide-streptogramin B resistance phenotype (MIC90 9.9 μg/mL). Scanning Electron Microscopy (SEM) showed that selamectin exposure caused relevant cell surface alterations. A synergistic effect was observed between ampicillin and selamectin, dictated by an FIC value of 0.5 against methicillin-resistant strain. Drug administration at MIC concentration reduced the intracellular bacterial load by 81.3%. The effect on preformed biofilm was investigated via crystal violet and confocal laser scanning microscopy. Selamectin reduced the biofilm biomass in a dose-dependent manner with minimal biofilm eradication concentrations inducing a 50% eradication (MBEC50 ) at 5.89 μg/mL. The cytotoxic tests indicated that selamectin exhibited no relevant hemolytic and cytotoxic activity at active concentrations. These data suggest that selamectin may represent a timely and promising macrocyclic lactone for the treatment of S. aureus infections.- Published
- 2023
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25. Characterization of the Oral Microbiome in Wearers of Fixed and Removable Implant or Non-Implant-Supported Prostheses in Healthy and Pathological Oral Conditions: A Narrative Review.
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D'Ambrosio F, Santella B, Di Palo MP, Giordano F, and Lo Giudice R
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Oral commensal microorganisms perform very important functions such as contributing to the health of the host. However, the oral microbiota also plays an important role in the pathogenesis and development of various oral and systemic diseases. The oral microbiome may be characterized by a higher prevalence of some microorganisms than others in subjects with removable or fixed prostheses, depending on oral health conditions, the prosthetic materials used, and any pathological conditions brought about by inadequate prosthetic manufacturing or poor oral hygiene. Both biotic and abiotic surfaces of removable and fixed prostheses can be easily colonized by bacteria, fungi, and viruses, which can become potential pathogens. The oral hygiene of denture wearers is often inadequate, and this can promote oral dysbiosis and the switch of microorganisms from commensal to pathogens. In light of what emerged from this review, fixed and removable dental prostheses on teeth and on implants are subject to bacterial colonization and can contribute to the formation of bacterial plaque. It is of fundamental importance to carry out the daily hygiene procedures of prosthetic products, to design the prosthesis to facilitate the patient's home oral hygiene practices, and to use products against plaque accumulation or capable of reducing oral dysbiosis to improve patients' home oral practices. Therefore, this review primarily aimed to analyze the oral microbiome composition in fixed and removable implant or non-implant-supported prostheses wearers in healthy and pathological oral conditions. Secondly, this review aims to point out related periodontal self-care recommendations for oral dysbiosis prevention and periodontal health maintenance in fixed and removable implant or non-implant-supported prostheses wearers.
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- 2023
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26. Microbial Air Contamination in a Dental Setting Environment and Ultrasonic Scaling in Periodontally Healthy Subjects: An Observational Study.
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Boccia G, Di Spirito F, D'Ambrosio F, De Caro F, Pecora D, Giorgio R, Fortino L, Longanella W, Franci G, Santella B, and Amato M
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- Humans, Healthy Volunteers, Pandemics, Respiratory Aerosols and Droplets, Air Microbiology, Colony Count, Microbial, Ultrasonics, COVID-19
- Abstract
The risk of microbial air contamination in a dental setting, especially during aerosol-generating dental procedures (AGDPs), has long been recognized, becoming even more relevant during the COVID-19 pandemic. However, individual pathogens were rarely studied, and microbial loads were measured heterogeneously, often using low-sensitivity methods. Therefore, the present study aimed to assess microbial air contamination in the dental environment, identify the microorganisms involved, and determine their count by active air sampling at the beginning (T0), during (T1), and at the end (T2) of ultrasonic scaling in systemically and periodontally healthy subjects. Air microbial contamination was detected at T0 in all samples, regardless of whether the sample was collected from patients treated first or later; predominantly Gram-positive bacteria, including Staphylococcus and Bacillus spp. and a minority of fungi, were identified. The number of bacterial colonies at T1 was higher, although the species found were similar to that found during the T0 sampling, whereby Gram-positive bacteria, mainly Streptococcus spp., were identified. Air samples collected at T2 showed a decrease in bacterial load compared to the previous sampling. Further research should investigate the levels and patterns of the microbial contamination of air, people, and the environment in dental settings via ultrasonic scaling and other AGDPs and identify the microorganisms involved to perform the procedure- and patient-related risk assessment and provide appropriate recommendations for aerosol infection control.
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- 2023
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27. Prevalence and Distribution of High- and Low- Risk HPV Genotypes in Women Living in the Metropolitan Area of Naples: A Recent Update.
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Serretiello E, Corrado F, Santella B, Chianese A, Iervolino D, Coppola A, Grimaldi E, Galdiero M, and Franci G
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- Humans, Female, Male, Young Adult, Adult, Prevalence, Retrospective Studies, Human Papillomavirus Viruses, Papillomaviridae genetics, Genotype, Human papillomavirus 16, Papillomavirus Infections epidemiology
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Introduction: Human papillomavirus (HPV) can infect both male and female genitals, skin, and mucous membranes, causing benign or malignant lesions. HPV is a common sexually transmitted infection and it is the main cause of cervical cancer. The present retrospective study updated the previously published data on HPV genotypes distribution among women living in Naples., Materials and Methods: In this study, 502 cervical scrape specimens were collected from women with abnormal cytological indication and analyzed for HPV DNA identification by Linear Array HPV genotyping test., Results: The HPV infection rate was 24.1%. HPV-16 (14.6%) was the most representative HR-HPV genotypes, followed by HPV-31 (13.8%), -18 (9.2%), and HPV-51 (8.5%). In addition, HPV-42 (16.4%) was the most prevalent genotype among LR-HPV genotypes (low-risk human papillomavirus). It was also found that women at the age group of 23-29 years (42.5%) were at the highest risk of HPV infection. It was found that the HPV-16 frequency decreased, but HPV-31 and -18 frequency increased a little. The LR HPV-53 frequency decreased, leaving the first place for abundance to the LR HPV-42. HPV-6 frequency did not change. LR HPV -11 was no more present. Merging <23 and 23-29 age classes into one class followed the same result., Conclusion: HPV prevalence declined in comparison to the previous data. A frequency variation was recorded for several genotypes in this study. Data can be useful to implement the preventative strategies and to promote HPV vaccination.
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- 2023
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28. Design of Three Residues Peptides against SARS-CoV-2 Infection.
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Zannella C, Chianese A, Greco G, Santella B, Squillaci G, Monti A, Doti N, Sanna G, Manzin A, Morana A, De Filippis A, D'Angelo G, Palmieri F, Franci G, and Galdiero M
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- Humans, SARS-CoV-2, Pandemics, Spike Glycoprotein, Coronavirus metabolism, Molecular Docking Simulation, Antiviral Agents pharmacology, Antiviral Agents chemistry, Peptides pharmacology, Peptide Hydrolases, Nucleotides, COVID-19 Drug Treatment
- Abstract
The continuous and rapid spread of the COVID-19 pandemic has emphasized the need to seek new therapeutic and prophylactic treatments. Peptide inhibitors are a valid alternative approach for the treatment of emerging viral infections, mainly due to their low toxicity and high efficiency. Recently, two small nucleotide signatures were identified in the genome of some members of the Coronaviridae family and many other human pathogens. In this study, we investigated whether the corresponding amino acid sequences of such nucleotide sequences could have effects on the viral infection of two representative human coronaviruses: HCoV-OC43 and SARS-CoV-2. Our results showed that the synthetic peptides analyzed inhibit the infection of both coronaviruses in a dose-dependent manner by binding the RBD of the Spike protein, as suggested by molecular docking and validated by biochemical studies. The peptides tested do not provide toxicity on cultured cells or human erythrocytes and are resistant to human serum proteases, indicating that they may be very promising antiviral peptides.
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- 2022
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29. Quality of Life of Pediatric Nurses During the COVID-19 Pandemic: A Cross-sectional Study.
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Buccione E, Santella B, Fiani ME, Maffeo M, Tedesco B, D'Errico A, Della Pelle C, Bambi S, and Rasero L
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- Child, Cross-Sectional Studies, Female, Humans, Male, Pandemics, Quality of Life, COVID-19 epidemiology, Nurses, Nurses, Pediatric
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Background: In a public health emergency, the psychological stress of nursing staff should be assessed, and nurses who cared for coronavirus disease 2019 (COVID-19) patients were constantly under pressure. Currently, frontline health care workers are experiencing mental health issues. The personal quality of life is directly related to the working environment, especially at this moment, when nursing could be a highly stressful and emotionally draining job., Objectives: During the COVID-19 pandemic, the primary objectives of the study were to describe the quality of life, posttraumatic stress disorder, and self-efficacy and to identify any associated factors of pediatric critical care nurses. This study is a multicenter cross-sectional study., Methods: Data were collected between February and May 2021 from pediatric critical care nurses. The following instruments were used: the Nursing Quality of Life Scale, the Nursing Profession Self-Efficacy Scale, and the Impact of Event Scale., Results: One hundred twelve nurses participated in this study with a 40% of response rate. Data suggest a better global perception of quality of life by male subjects (F = 6.65, P = .011). The nurses who cared for COVID-19 patients reported a lower quality of social life (F = 4.09, P = .045); furthermore, the nurses who had clinically vulnerable people in their families reported a worse quality of physical life (F = 4.37, P = .045). Approximately 50% of nurses reported sleep disturbances, and 37% reported symptoms of posttraumatic stress disorder, especially female nurses (F = 8.55, P = .04)., Conclusion: According to this study, female nurses were more likely to experience posttraumatic stress disorder symptoms during the COVID-19 pandemic. Furthermore, findings also highlighted a lower quality of social life for those with clinically vulnerable relatives may be due to a self-limitation of interactions with other people. Finally, sleep disturbances were prevalent, potentially affecting nurses' mental health and performance., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2022
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30. Microbiota and HPV: The role of viral infection on vaginal microbiota.
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Santella B, Schettino MT, Franci G, De Franciscis P, Colacurci N, Schiattarella A, and Galdiero M
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- Bacteria genetics, Cervix Uteri pathology, Female, Humans, RNA, Ribosomal, 16S genetics, Vagina, Microbiota genetics, Papillomavirus Infections complications, Papillomavirus Infections epidemiology, Papillomavirus Infections pathology, Uterine Cervical Neoplasms
- Abstract
The World Health Organization (WHO) estimates that the prevalence of human papillomaviruses (HPV) infection is between 9% and 13% of the world population and only in the United States, more than 6.2 million are positive every year. There are more than 100 types of HPV, among them, two serotypes (16 and 18) are related to 70% of cervical cancers and precancerous cervical lesions. The vaginal microbiota could play a considerable role in HPV infection and the genesis of cervical tumors caused by HPV. Moreover, bacteria are strongly associated with vaginal inflammation and oncogenic mutations in human cells. We aim to investigate whether HPV infection could influence the bacterial microbiota composition in the uterine cervix. A total of 31 women were enrolled in this study. The vaginal swabs were collected; the HPV-DNA was extracted with QIAamp DNA Microbiome. The V3-V4-V6 region of the 16S rDNA gene was amplified by polymerase chain reaction (PCR) followed by sequencing with MiSeq Illumina. The main phylum identified in the vaginal microbiota were Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria. The phylum of Actinobacteria, Proteobacteria, and Bacteroides was more represented in HPV-positive patients. Lactobacilli represented the dominant genus, with a high percentage of Lactobacilli iners, Lactobacilli jensenii, and Lactobacilli crispatus as species. Gardnerella vaginalis, Enterococcus spp., Staphylococcus spp., Proteus spp., and Atopobium were the most represented in HPV-positive patients. An altered vaginal microbiota might play a functional role in HPV cervical infection, progression, and clearance. The relationship between infection and microbiota could spur the development of new probiotics. However, further studies are needed to clarify the role of the vaginal microbiota in HPV infection., (© 2022 The Authors. Journal of Medical Virology published by Wiley Periodicals LLC.)
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- 2022
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31. Prevalence and Antimicrobial Resistance of Causative Agents to Ocular Infections.
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Manente R, Santella B, Pagliano P, Santoro E, Casolaro V, Borrelli A, Capunzo M, Galdiero M, Franci G, and Boccia G
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Bacterial ocular infections are a worldwide health problem and, if untreated, can damage the structure of the eye and contribute to permanent disability. Knowledge of the prevalence and antimicrobial susceptibility patterns of the main causative agents involved in ocular infections is necessary for defining an optimal antibiotic therapy. The aim of this study was to analyse bacterial species involved in ocular infections and the antimicrobial susceptibility patterns. Conjunctival swab samples were collected from patients with bacterial conjunctivitis at the University Hospital San Giovanni di Dio e Ruggi d'Aragona between January 2015 and December 2019. The identification and antibiotic sensitivity tests were performed using the VITEK 2 system. A total of 281 causative agents of ocular infections were isolated, 81.8% of which were Gram-positive bacteria. Coagulase-negative staphylococci (CoNS) were the most commonly isolated species among Gram-positive bacteria, followed by Staphylococcus aureus. In contrast, Pseudomonas spp. and Escherichia coli were the main species isolated among Gram-negative bacteria (18.2%). Overall, linezolid, teicoplanin, tigecycline and vancomycin were the most effective antimicrobials. Analysis of resistance rates over time highlighted increasing resistance for azithromycin, clarithromycin and erythromycin among CoNS, and clindamycin and erythromycin among Staphylococcus aureus. This study has identified the profiles of the major pathogens involved in ocular infection and their susceptibility patterns, which will help improve the treatments and the choice of antibiotics in ocular infections.
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- 2022
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32. Prevalence and Antimicrobial Resistance of Enterococcus Species: A Retrospective Cohort Study in Italy.
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Boccella M, Santella B, Pagliano P, De Filippis A, Casolaro V, Galdiero M, Borrelli A, Capunzo M, Boccia G, and Franci G
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Antimicrobial resistance represents one of the main threats to healthy ecosystems. In recent years, among the multidrug-resistant microorganisms responsible for nosocomial infections, the Enterococcus species have received much attention. Indeed, Enterococcus have peculiar skills in their ability to acquire resistance genes and to cause severe diseases, such as endocarditis. This study showed the prevalence and antimicrobial resistance rate of Enterococcus spp. isolated from clinical samples, from January 2015 to December 2019 at the University Hospital "San Giovanni di Dio e Ruggi d'Aragona" in Salerno, Italy. A total of 3236 isolates of Enterococcus faecalis (82.2%) and Enterococcus faecium (17.8%) were collected from urine cultures, blood cultures, catheters, respiratory tract, and other samples. Bacterial identification and antibiotic susceptibility were performed with VITEK 2. E. faecium showed a high resistance rate against ampicillin (84.5%), ampicillin/sulbactam (82.7%), and imipenem (86.7%), while E. faecalis showed the highest resistance rate against gentamicin and streptomycin high level, but both were highly sensitive to such antibiotics as tigecycline and vancomycin. Studies of surveillance are an important tool to detect changes in the resistance profiles of the main pathogens. These antimicrobial susceptibility patterns are necessary to improve the empirical treatment guideline of infections.
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- 2021
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33. Prevalence and Antibiotic Resistance Profile of Bacterial Pathogens in Aerobic Vaginitis: A Retrospective Study in Italy.
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Serretiello E, Santella B, Folliero V, Iervolino D, Santoro E, Manente R, Dell'Annunziata F, Sperlongano R, Crudele V, De Filippis A, Galdiero M, Franci G, and Boccia G
- Abstract
Aerobic vaginitis (AV) is a vaginal infectious condition, characterized by a high inflammatory response and/or signs of epithelial atrophy, a decrease in the amount of Lactobacillus spp. and an increase in enteric origin bacteria. AV, often misdiagnosed, is difficult to treat due to the emerging spread of multi-drug resistant bacterial strains. The present study aimed to define the prevalence of AV, to detect causative bacteria and their antimicrobial resistance pattern. Women 10-95 years old, admitted to San Giovanni di Dio e Ruggi d'Aragona Hospital, Salerno, Italy (in the years 2015-2019) are included in the study. Bacterial identification and antibiotic susceptibility tests were carried out by VITEK
® 2. Among 2069 patients, 1176 tested positive for microbial growth. A higher incidence of infection was found in the 55-64 age group. Among the pathogenic strains, 50.4% were Gram-negative, and 49.6% were Gram-positive. Escherichia coli ( E. coli ) (32.5%) was the most representative strain, followed by Enterococcus faecalis ( E. faecalis ) (29.4%), Klebsiella pneumoniae ( K. pneumoniae ) (7.8%) and Enterococcus faecium ( E. faecium ) (7.7%). E. coli showed high sensitivity to carbapenems and amikacin. K. pneumoniae carbapenems resistance was fluctuating over time. Alarming resistance to vancomycin was not recorded for Enterococci . Both strains were sensitive to teicoplanin, linezolid and tigecycline. Proper diagnosis and an effective therapeutic approach are needed to improve AV management.- Published
- 2021
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34. Lower Respiratory Tract Pathogens and Their Antimicrobial Susceptibility Pattern: A 5-Year Study.
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Santella B, Serretiello E, De Filippis A, Veronica F, Iervolino D, Dell'Annunziata F, Manente R, Valitutti F, Santoro E, Pagliano P, Galdiero M, Boccia G, and Franci G
- Abstract
Lower respiratory tract infections (LRTIs) are the most common infections in humans. It is estimated that 2.74 million deaths worldwide occur each year due to LRTIs. The aim of the study was to determine the frequency and antibiotic susceptibility pattern of microorganisms isolated from respiratory samples of patients with LRTIs. Between January 2015 and December 2019, a total of 7038 sputum and bronchoaspirate samples from suspected LRTI patients were collected. Among them, 2753 samples (39.1%) showed significant microbial growth on culture media. The LRTI rate was higher in patients with male gender (67.1%) and with age between 40-59 years (48.6%). The microorganism identification and antibiotic susceptibility testing were performed with Vitek 2. Out of 4278 isolates species, 3102 (72.5%) were Gram-negative bacteria, 1048 (24.5%) were Gram-positive bacteria, and 128 (3.0%) were Candida spp. Major microorganisms isolated were Acinetobacter baumannii (18.6%), Staphylococcus aureus (15.2%), Pseudomonas aeruginosa (14.2%), and Klebsiella pneumoniae (10.9%). In antimicrobial susceptibility testing, Staphylococcus aureus isolates were mostly resistant to Penicillin G (84.1%) and Oxacillin (48.1%), whereas they demonstrated maximum sensitivity to Tigecycline (100%) and Linezolid (99.5%). Among Gram-negative isolates, Acinetobacter baumannii showed maximum sensitivity to Colistin but was resistant to other antibiotics (95-99%). Klebsiella pneumoniae isolates were mostly resistant to Cefotaxime (72.7%) and sensitive to Gentamicin (54.3%), and Pseudomonas aeruginosa was resistant to Ciprofloxacin (40.3%) and sensitive to Amikacin (85.9%). Gram-negative bacteria represented the species most commonly isolated. A high rate of antimicrobial resistance was observed in this study. In conclusion, the correct identification of causative microorganisms and their susceptibility patterns to antibiotics is crucial for choosing targeted and effective antibiotic therapy in LRTIs, and to prevent the emergence of multidrug-resistant bacteria.
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- 2021
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35. The Role of Physical Therapy in Multiple Risk Factor Management Poststroke: A Scoping Review.
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Sutton KM, Hunter EG, Logsdon B, Santella B, and Kitzman PH
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- Humans, Obesity, Physical Therapy Modalities, Risk Factors, Stroke complications, Stroke Rehabilitation
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Background and Purpose: Individuals after stroke often have multiple chronic conditions, such as hypertension, diabetes, dyslipidemia, obesity, and tobacco use. These comorbidities not only are commonly found in individuals with stroke, but also negatively affect functional outcomes and increase risk for hospital readmission and overall mortality. It is important for physical therapists to address the whole person during treatment after stroke, including comorbidities, not just the problems resulting from the stroke itself. However, it is unclear how common it is for physical therapists to address multiple diagnoses at once using a wellness model. Therefore, the purpose of this scoping review was to examine current evidence regarding the role of physical therapy in addressing modifiable risk factors for individuals after stroke, to identify gaps in research associated with physical therapy management of related comorbid diagnoses during treatment for stroke., Methods: A scoping review methodology was utilized searching PubMed and CINAHL databases to identify interventional research studies specifically addressing multiple modifiable risk factors utilizing physical therapy for individuals after stroke., Results: The initial search yielded 5358 articles and 12 articles met full inclusion criteria. Only 2 studies included participants with significant mobility impairments, and none included individuals with communication impairments. Only 4 of the 12 studies provided education in their design. Eight studies did not include any patient-reported outcome measures. Only 3 studies included long-term follow-up assessments., Discussion: Secondary stroke risk factors can be positively addressed using physical therapy interventions; however, more research is needed regarding individuals with moderate to severe mobility or communication deficits. Opportunities for physical therapy research to address stroke risk factors in this complex population include expanding follow-up periods, improving educational interventions, and including caregivers in study design., Conclusions: This review highlights the need for better integration of clinical considerations into stroke rehabilitation research as a whole, along with the need for additional research regarding the role physical therapy can play in addressing multimorbidity in individuals with stroke., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2020 APTA Geriatrics, An Academy of the American Physical Therapy Association.)
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- 2021
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36. Oncolytic Viruses in Combination Therapeutic Approaches with Epigenetic Modulators: Past, Present, and Future Perspectives.
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Chianese A, Santella B, Ambrosino A, Stelitano D, Rinaldi L, Galdiero M, Zannella C, and Franci G
- Abstract
According to the World Cancer Report, cancer rates have been increased by 50% with 15 million new cases in the year 2020. Hepatocellular carcinoma (HCC) is the only one of the most common tumors to cause a huge increase in mortality with a survival rate between 40% and 70% at 5 years, due to the high relapse and limitations associated with current therapies. Despite great progress in medicine, oncological research is always looking for new therapies: different technologies have been evaluated in clinical trials and others have been already used in clinics. Among them, oncolytic virotherapy represents a therapeutic option with a widespread possibility of approaches and applications. Oncolytic viruses are naturally occurring, or are engineered, viruses characterized by the unique features of preferentially infecting, replicating, and lysing malignant tumor cells, as well as activating the immune response. The combination of oncolytic virotherapy and chemical drugs are arousing great interest in the tumor treatment. In this scenario, novel and promising anticancer therapies comprise combinations of oncolytic viruses and epigenetic modulators or inhibitors of the signalling pathways. Combination treatments are required to improve the immune response and allow viral entry, replication, and diffusion between proximal cells. In this review, we summarize all combination therapies associated with virotherapy, including co-administered inhibitors of chromatin modifiers (combination strategies) and inserted target sites for miRNAs (recombination or arming strategies).
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- 2021
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37. Antimicrobial Susceptibility Patterns and Resistance Trends of Staphylococcus aureus and Coagulase-Negative Staphylococci Strains Isolated from Ocular Infections.
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Petrillo F, Pignataro D, Di Lella FM, Reibaldi M, Fallico M, Castellino N, Parisi G, Trotta MC, D'Amico M, Santella B, Folliero V, Della Rocca MT, Rinaldi M, Franci G, Avitabile T, Galdiero M, and Boccia G
- Abstract
Ocular bacterial infections represent a serious problem that affecting people of all age and genders. These infections can lead to visual impairment and blindness if not properly treated. The current study evaluates the antimicrobial resistance profiles and the resistance trend of both Staphylococcus aureus ( S. aureus ) and coagulase-negative staphylococci (CoNS), the main pathogens involved in eye infections. A total of 322 isolates of S. aureus and CoNS, were collected from patients with bacterial conjunctivitis and keratitis at the "Luigi Vanvitelli" University Hospital of Campania in Naples, Italy, between 2017 and 2020. The isolated bacteria showed a high percentage of resistance to methicillin and other antibiotics commonly used for the treatment of ocular infections. Trends in antibiotic resistance were not encouraging, recording-especially among CoNS strains-an increase of more than 20% in resistance to methicillin and aminoglycosides during the study period. Instead, the resistance rates to tetracycline had a significant decrease in CoNS isolates while no changes in their susceptibility to fluoroquinolones and macrolides were observed. However, all isolates showed no resistance to trimethoprim/sulfamethoxazole and chloramphenicol. In this scenario, preventive identification of the infection causative agents and the evaluation of the antimicrobial susceptibility patterns are essential to set up an ocular infection effective drug treatment and also prevent antibiotic resistance.
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- 2021
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38. Trend of Bacterial Uropathogens and Their Susceptibility Pattern: Study of Single Academic High-Volume Center in Italy (2015-2019).
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Serretiello E, Folliero V, Santella B, Giordano G, Santoro E, De Caro F, Pagliano P, Ferro M, Aliberti SM, Capunzo M, Galdiero M, Franci G, and Boccia G
- Abstract
Urinary tract infections (UTIs) are a very widespread infection that can occur in disparate age range, in both sexes and in pregnancy/menopause state. Treatment of UTIs is difficult due to the emergence of antibiotic-resistant bacterial strains. The present study shows five years of data collected on patients admitted at the University Hospital "San Giovann di Dio e Ruggi d'Aragona" in Salerno, Italy. The investigation exhibits the incidence of the infection, of the gender, and of the age group affected, identifying the most representative bacteria involved, drawing their profile of antimicrobial resistance. Bacterial identification and antibiotic susceptibility testing were performed using the VITEK 2 system. Among the 46382 studied patients, 9896 (21.34%) and 36486 (78.66%) were positive and negative for microorganism growth, respectively. Of 9896 positive patients, 6158 (62.23%) females and 3738 (37.77%) males were identified. The highest incidence of positive subjects (56.66%) was recorded in the elderly (>61 years). 8431 (85.20%) uropathogens were Gram-negative, 1367 (13.81%) were Gram-positive, and 98 (0.99%) were Candida species ( Candida spp.). Escherichia coli (E. coli) and Enterococcus faecalis (E. faecalis) were the most representative Gram-negative and Gram-positive strains, respectively. The Gram-negative bacteria most representative were highly resistant to ampicillin, whereas among the Gram-positive bacteria, E. faecalis was highly resistant to gentamicin and streptomycin high level synergy, and Enterococcus faecium ( E. faecium ) to ampicillin, ampicillin/sulbactam, and imipenem. This retrospective work investigates the local epidemiological trend in our university hospital in order to induce an increasingly targeted empirical therapeutic approach for the treatment of UTIs., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2021 Enrica Serretiello et al.)
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- 2021
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39. Microbiota thrombus colonization may influence athero-thrombosis in hyperglycemic patients with ST segment elevation myocardialinfarction (STEMI). Marianella study.
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Sardu C, Consiglia Trotta M, Santella B, D'Onofrio N, Barbieri M, Rizzo MR, Sasso FC, Scisciola L, Turriziani F, Torella M, Portoghese M, Loreni F, Mureddu S, Lepore MA, Galdiero M, Franci G, Folliero V, Petrillo A, Boatti L, Minicucci F, Mauro C, Calabrò P, Feo M, Balestrieri ML, Ercolini D, D'Amico M, Paolisso G, Galdiero M, and Marfella R
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- Aged, Cohort Studies, Coronary Thrombosis complications, Coronary Thrombosis mortality, Coronary Thrombosis therapy, Female, Humans, Male, Middle Aged, Prospective Studies, Treatment Outcome, Hyperglycemia complications, Microbiota physiology, Percutaneous Coronary Intervention methods, ST Elevation Myocardial Infarction blood, Thrombosis microbiology
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Objectives: We examined the association of the coronary thrombus microbiota and relative metabolites with major adverse cardiovascular events (MACE) in hyperglycemic patients with ST segment elevation myocardial infarction (STEMI)., Background: Hyperglycemia during STEMI may affect both development and progression of coronary thrombus via gut and thrombus microbiota modifications., Methods: We undertook an observational cohort study of 146 first STEMI patients treated with primary percutaneous coronary intervention (PPCI) and thrombus-aspiration (TA). Patients were clustered, based on admission blood glucose levels, in hyperglycemic (≥140 mg/dl) and normoglycemic (<140 mg/dl). We analyzed gut and thrombus microbiota in all patients. Moreover, we assessed TMAO, CD40L and von Willebrand Factor (vWF) in coronary thrombi. Cox regressions were used for the association between Prevotellaspp. and TMAO terziles and MACE. MACE endpoint at 1 year included death, re-infarction, unstable angina., Results: In fecal and thrombus samples, we observed a significantly different prevalence of both Prevotellaspp. and Alistipesspp. between patients with hyperglycemia (n = 56) and those with normal glucose levels (n = 90). The abundance of Prevotella increased in hyperglycemic vs normoglycemic patients whereas the contrary was observed for Alistipes. Interestingly, in coronary thrombus, the content of Prevotella was associated with admission blood glucose levels (p < 0.01), thrombus dimensions (p < 0.01), TMAO, CDL40 (p < 0.01) and vWF (p < 0.01) coronary thrombus contents. Multivariate Cox-analysis disclosed a reduced survival in patients with high levels of Prevotella and TMAO in coronary thrombus as compared to patients with low levels of Prevotella and TMAO, after 1-year follow up., Conclusions: Hyperglycemia during STEMI may increase coronary thrombus burden via gut and thrombus microbiota dysbiosis characterized by an increase of Prevotella and TMAO content in thrombi., Clinical Trial Registration: NCT03439592. September 30, 2016. Ethic Committee Vanvitelli University: 268/2016., Competing Interests: Declaration of Competing Interest The authors declared that there is no conflict of interest., (Copyright © 2021 Elsevier B.V. All rights reserved.)
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- 2021
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40. Sepsis-A Retrospective Cohort Study of Bloodstream Infections.
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Santella B, Folliero V, Pirofalo GM, Serretiello E, Zannella C, Moccia G, Santoro E, Sanna G, Motta O, De Caro F, Pagliano P, Capunzo M, Galdiero M, Boccia G, and Franci G
- Abstract
Bloodstream infections (BSIs) are among the leading causes of morbidity and mortality worldwide, among infectious diseases. Local knowledge of the main bacteria involved in BSIs and their associated antibiotic susceptibility patterns is essential to rationalize the empiric antimicrobial therapy. The aim of this study was to define the incidence of infection and evaluate the antimicrobial resistance profile of the main pathogens involved in BSIs. This study enrolled patients of all ages and both sexes admitted to the University Hospital "San Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy between January 2015 to December 2019. Bacterial identification and antibiotic susceptibility testing were performed with Vitek 2. A number of 3.949 positive blood cultures were included out of 24,694 total blood cultures from 2015 to 2019. Coagulase-negative staphylococci (CoNS) were identified as the main bacteria that caused BSI (17.4%), followed by Staphylococcus aureus (12.3%), Escherichia coli (10.9%), and Klebsiella pneumoniae (9.4%). Gram-positive bacteria were highly resistant to Penicillin G and Oxacillin, while Gram-negative strains to Ciprofloxacin, Cefotaxime, Ceftazidime, and Amoxicillin-clavulanate. High susceptibility to Vancomycin, Linezolid, and Daptomycin was observed among Gram-positive strains. Fosfomycin showed the best performance to treatment Gram-negative BSIs. Our study found an increase in resistance to the latest generation of antibiotics over the years. This suggests an urgent need to improve antimicrobial management programs to optimize empirical therapy in BSI.
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- 2020
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41. The emerging tick-borne Crimean-Congo haemorrhagic fever virus: A narrative review.
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Serretiello E, Astorri R, Chianese A, Stelitano D, Zannella C, Folliero V, Santella B, Galdiero M, Franci G, and Galdiero M
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- Animals, Genome, Viral, Humans, Ixodidae, Ticks, Hemorrhagic Fever Virus, Crimean-Congo, Hemorrhagic Fever, Crimean, Tick-Borne Diseases
- Abstract
Crimean-Congo Haemorrhagic Fever (CCHF) is an increasingly relevant viral zoonosis caused by the negative-sense single-stranded (ss) RNA Crimean-Congo Haemorrhagic Fever Orthonairovirus (CCHFV) (Nairoviridae family, Bunyavirales order). The viral genome is divided into three segments (L-M-S) of distinct size and functions. The infection is generally mediated by a tick vector, in particular belonging to the Hyalomma genus, and the transmission follows a tick-vertebrate-tick ecologic cycle, with asymptomatic infected animals functioning as reservoirs and amplifiers for CCHFV. Human hosts could be infected primarily through infected ticks or by contact with infected hosts or their body fluids and tissues, also in a nosocomial way and in occupational contexts. Infected symptomatic patients generally manifest a nonspecific illness, which progresses across four stages, with possibly lethal outcomes. Disease outbreaks show a widespread geographic diffusion and a highly variable mortality rate, dramatically peaking in untreated patients. The lack of an adequate animal model and the elevated virus biological risk (only manageable under biosafety level 4 conditions) represent strongly limiting factors for a better characterization of the disease and for the development of specific therapies and vaccines. The present review discusses updated information on CCHFV-related disease, including details about the virus (taxonomy, structure, life cycle, transmission modalities) and considering CCHF pathogenesis, epidemiology and current strategies (diagnostic, therapeutic and preventive)., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
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- 2020
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42. Current Evidence on the Ocular Surface Microbiota and Related Diseases.
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Petrillo F, Pignataro D, Lavano MA, Santella B, Folliero V, Zannella C, Astarita C, Gagliano C, Franci G, Avitabile T, and Galdiero M
- Abstract
The ocular surface microbiota refers to the resident non-pathogenic microorganisms that colonize conjunctiva and cornea. Several studies have shown that ocular surface epithelial cells can respond selectively to specific components of ocular pathogenic bacteria by producing pro-inflammatory cytokines and, in contrast, they do not respond to non-pathogenic bacteria, thus supporting the colonization by a real microbiota. However, the analysis of the ocular microbiome composition is essential for understanding the pathophysiology of various ophthalmic diseases. In this scenario, the first studies, which used microbiological culture techniques, reported a less diverse profile of the ocular microbiota compared with that recently discovered using new molecular-based methods. Indeed, until a few years ago, the microbiota of the ocular surface appeared to be dominated by Gram-positive and a few Gram-negative bacteria, as well as some fungal strains. In contrast, genomics has nowadays detected a remarkable diversity in the ocular surface microorganisms. Furthermore, recent studies suggest that the microbiota of other areas of the body, such as the gut and oral microbiota, are involved in the pathophysiology of several ophthalmic diseases. The aim of the present study is to highlight the current evidence on the ocular surface microbiota to better understand it and to investigate its potential role in the development of ophthalmic diseases.
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- 2020
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