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Kalmpourtzidou A, Di Napoli I, Vincenti A, De Giuseppe R, Casali PM, Tomasinelli CE, Ferrara F, Tursi F, Cena H. Epicardial fat and insulin resistance in healthy older adults: a cross-sectional analysis. GeroScience 2024; 46:2123-2137. [PMID: 37857994 PMCID: PMC10828363 DOI: 10.1007/s11357-023-00972-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/05/2023] [Indexed: 10/21/2023] Open
Abstract
Insulin resistance (IR) and cardiovascular diseases (CVD) are relevant concerns in the elderly population; as the world's population ages, IR and CVD are two universal public health problems. While a link between IR a CVD has been established, the mediating mechanisms are uncertain and rigorous investigations are needed to fully elucidate them. The study aimed at assessing the relationship between epicardial fat (EF), an indicator of cardiovascular risk, and IR in Italian free-living elderly (n = 89). Baseline data from a previous cohort was used. Anthropometric measurements, EF, and IR-related variables, including the HOMA-IR index and other biochemical parameters were obtained. The correlation between EF and IR was explored. Further analysis was conducted to identify significant differences regarding IR variables among EF quartiles. EF correlated positively with glucose levels in females, males and the total population. The pairwise comparison among EF quartiles showed significant differences in glucose levels, HOMA-IR index, triglycerides, and total cholesterol levels. To our knowledge, this is the only study assessing the relationship between EF and IR in healthy elderly, while most of the studies have investigated EF and IR in diseased populations. Further research with a longitudinal approach should be conducted to design concrete conclusions about this relationship.
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Affiliation(s)
- Aliki Kalmpourtzidou
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy
| | - Ilaria Di Napoli
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy
| | - Alessandra Vincenti
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy
| | - Rachele De Giuseppe
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy.
| | - Pietro Mariano Casali
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Chiara Elena Tomasinelli
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy
| | - Fulvio Ferrara
- Laboratory Medicine Department - Centro Diagnostico Italiano, Milan, Italy
| | - Francesco Tursi
- Complife Italia s.r.l., Piazzale Siena 11, 20146, Milano, Italy
| | - Hellas Cena
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100, Pavia, Italy
- Clinical Nutrition and Dietetic Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100, Pavia, Italy
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Calcaterra V, Cena H, De Giuseppe R, Biino G, Grazi R, Manuelli M, Zanelli S, Tagi V, Vincenti A, Zuccotti G, Fabiano V. An Adapted Questionnaire Tailored for Assessing the Risk of Vitamin D Deficiency in Children That Is Proving Useful in Guiding Clinical Interventions. Nutrients 2024; 16:971. [PMID: 38613005 PMCID: PMC11013822 DOI: 10.3390/nu16070971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND The identification of vitamin D (VitD) deficiency in pediatric populations is essential for preventive healthcare. We refined and tested the Evaluation of Deficiency Questionnaire (EVIDENCe-Q) for its utility in detecting VitD insufficiency among children. PATIENTS AND METHODS We enrolled 201 pediatric patients (aged between 3 and 18 years). Clinical evaluation and serum vitamin D levels were assessed in all subjects. The EVIDENCe-Q was updated to incorporate factors influencing VitD biosynthesis, intake, assimilation, and metabolism, with scores spanning from 0 (optimal) to 36 (poor). RESULTS We established scores for severe deficiency (<10 mg/dL) at 20, deficiency (<20 mg/dL) at 22, and insufficiency (<30 mg/dL) at 28. A score of 20 or greater was determined as the optimal cut-off for distinguishing VitD deficient from sufficient statuses, as evidenced by ROC curve analysis AUC = 0.7066; SE = 0.0841; sensitivity 100%, 95% CI 0.561-1. The most accurate alignment was seen with VitD insufficiency, defined as 25-OH-D3 < 20 ng/mL. CONCLUSIONS This study confirms that the EVIDENCe-Q is a valid instrument for assessing the risk of vitamin D deficiency and insufficiency in children. It offers a practical approach for determining the need for clinical intervention and dietary supplementation of VitD in the pediatric population.
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Affiliation(s)
- Valeria Calcaterra
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
| | - Hellas Cena
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (R.D.G.); (M.M.); (A.V.)
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, Clinical Scientific Institute Maugeri IRCCS, 27100 Pavia, Italy
| | - Rachele De Giuseppe
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (R.D.G.); (M.M.); (A.V.)
| | - Ginevra Biino
- Institute of Molecular Genetics, National Research Council of Italy, 27100 Pavia, Italy;
| | - Roberta Grazi
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
| | - Matteo Manuelli
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (R.D.G.); (M.M.); (A.V.)
| | - Sara Zanelli
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
| | - Veronica Tagi
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
- Department of Biomedical and Clinical Science, University of Milano, 20157 Milano, Italy
| | - Alessandra Vincenti
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (R.D.G.); (M.M.); (A.V.)
| | - Gianvincenzo Zuccotti
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
- Department of Biomedical and Clinical Science, University of Milano, 20157 Milano, Italy
| | - Valentina Fabiano
- Pediatric Department, Buzzi Children’s Hospital, 20154 Milano, Italy; (R.G.); (S.Z.); (V.T.); (G.Z.); (V.F.)
- Department of Biomedical and Clinical Science, University of Milano, 20157 Milano, Italy
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De Giuseppe R, Di Napoli I, Tomasinelli CE, Vincenti A, Biino G, Sommella E, Ferron L, Campiglia P, Ferrara F, Casali PM, Cena H. The Effect of Crackers Enriched with Camelina Sativa Oil on Omega-3 Serum Fatty Acid Composition in Older Adults: A Randomized Placebo-Controlled Pilot Trial. J Nutr Health Aging 2023; 27:463-471. [PMID: 37357331 PMCID: PMC10238773 DOI: 10.1007/s12603-023-1925-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/13/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Camelina sativa oil is one of the richest dietary sources of omega-3, with polyunsaturated fatty acids amounts of over 50%, linolenic acid content of around 40-45%, and linoleic acid of about 15%. Moreover, this oil is a valuable source of antioxidants which provide oxidative stability. All those features raise interest in considering Camelina oil as an alternative and sustainable oil source providing stable omega-3-rich emulsions for functional food production. OBJECTIVES The present study aimed to investigate the effects of Camelina oil-enriched crackers on serum omega-3 concentration, inflammatory markers and serum lipid profile. DESIGN Randomized placebo-controlled pilot trial. SETTING Research and Development Center (Complife Italia s.r.l.). PARTICIPANTS Sixty-six free-living older volunteers (aged≥65 years). INTERVENTION Older adults were enrolled and randomly assigned to one of two groups: the camelina group or the placebo group. Subjects consumed daily 35 g of crackers (Camelina enriched crackers or placebo ones) twice daily for 12 weeks. MEASUREMENTS Serum polyunsaturated fatty acid profile, inflammatory status and serum lipid panel parameters were recorded pre and post-intervention. RESULTS In the camelina group, alpha-linolenic acid serum concentration was significantly higher (p<0.01) compared to the placebo group at the end of the study. Concerning inflammatory plasma markers, a significant mean pro-inflammatory interleukin-18 plasma concentration decrease in the placebo group compared to the camelina one was observed (p<0.05). No significant differences in other mean inflammatory markers concentrations post-intervention were noted in either group. Lastly, examining the change in lipid profile, it is noteworthy that a higher reduction of total cholesterol, low-density lipoprotein and triglycerides in the camelina group post-intervention, despite the lack of statistical significance. CONCLUSION Camelina oil significantly elevated the serum alpha-linolenic acid concentration with no significant changes in inflammatory markers and lipid profile.
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Affiliation(s)
- R De Giuseppe
- Alessandra Vincenti, Dietetics and Clinical Nutrition Laboratory, Department of Public Health, Experimental and Forensic Medicine, University of Pavia; via Bassi 21, 27100 Pavia, Italy, Email address: , Telephone number: 0039-0382987544
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De Giuseppe R, Colleoni M, Cremaschi M, Daconto L, Di Napoli I, Gallace A, Guzzetti L, Labra M, Maurino A, Tomasinelli CE, Vincenti A, Zizzari S, Cena H. How to preserve healthy aging through nutritional strategies: The new approach of the Food Social Network (Food NET) project. MNM 2022. [DOI: 10.3233/mnm-211500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Aging is a process that does not refer only to the accumulation of damage in a human being over time but rather to individual changes determined by genetic, lifestyle, social and environmental factors. Aging is one of the greatest known risk factors for most human diseases. An older person in good health has a good level of independence, weighs less on the national health system and plays a productive and active role in his/her community; thus, the concept of “healthy aging”, reflecting older adult-environment fit should be promoted. The interactions between lifestyle, including nutrition, and health play a fundamental role in the aging process; eating habits and eating behaviours are recognized as important modifiable factors potentially leading to a healthy “phenotype”. OBJECTIVE AND METHODS: A multidisciplinary consortium with three Italian universities (the University of Milano-Bicocca, University of Pavia and University of Calabria) and Italian Small-Medium Enterprises proposed the Food Social Network (Food NET) project. Food NET overall outcome is to achieve target-specific guidelines and exact technologies for accessible functional foods, aimed at improving the quality of life and nutritional status of citizens (aged>65) of the Metropolitan City of Milan (Italy). CONCLUSIONS: This project is part of the “Smart Living” and food-related strategies aimed at responding to the needs of this target population, developing new food products, appropriate to meet the specific requirements and ensuring and promoting sustainable diets for healthy aging by effective food policy approaches.
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Affiliation(s)
- Rachele De Giuseppe
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Matteo Colleoni
- Department of Sociology and Social Research, University of Milan-Bicocca, Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Marco Cremaschi
- Department of Computer Science, Systems and Communication, University of Milano-Bicocca, Milano, Italy
| | - Luca Daconto
- Department of Sociology and Social Research, University of Milan-Bicocca, Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Ilaria Di Napoli
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Alberto Gallace
- Department of Psychology, Mind and Behavior Technological Center, University of Milano-Bicocca, Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Lorenzo Guzzetti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126-I Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Massimo Labra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126-I Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Andrea Maurino
- Department of Computer Science, Systems and Communication, University of Milano-Bicocca, Milano, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
| | - Chiara Elena Tomasinelli
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Alessandra Vincenti
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Sara Zizzari
- Department of Sociology and Social Research, University of Milan-Bicocca, Milano, Italy
| | - Hellas Cena
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- Bicocca Center of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, 20126 Milano, Italy
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy
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Cena H, Fiechtner L, Vincenti A, Magenes VC, De Giuseppe R, Manuelli M, Zuccotti GV, Calcaterra V. COVID-19 Pandemic as Risk Factors for Excessive Weight Gain in Pediatrics: The Role of Changes in Nutrition Behavior. A Narrative Review. Nutrients 2021; 13:4255. [PMID: 34959805 PMCID: PMC8707175 DOI: 10.3390/nu13124255] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/17/2022] Open
Abstract
During the coronavirus disease 2019 (COVID-19) pandemic, social isolation, semi-lockdown, and "stay at home" orders were imposed upon the population in the interest of infection control. This dramatically changes the daily routine of children and adolescents, with a large impact on lifestyle and wellbeing. Children with obesity have been shown to be at a higher risk of negative lifestyle changes and weight gain during lockdown. Obesity and COVID-19 negatively affect children and adolescents' wellbeing, with adverse effects on psychophysical health, due in large part to food choices, snacking between meals, and comfort eating. Moreover, a markable decrease in physical activity levels and an increase in sedentary behavior is associated with weight gain, especially in children with excessive weight. In addition, obesity is the most common comorbidity in severe cases of COVID-19, suggesting that immune dysregulation, metabolic unbalance, inadequate nutritional status, and dysbiosis are key factors in the complex mechanistic and clinical interplay between obesity and COVID-19. This narrative review aims to describe the most up-to-date evidence on the clinical characteristics of COVID-19 in children and adolescents, focusing on the role of excessive weight and weight gain in pediatrics. The COVID-19 pandemic has taught us that nutrition education interventions, access to healthy food, as well as family nutrition counselling should be covered by pediatric services to prevent obesity, which worsens disease outcomes related to COVID-19 infection.
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Affiliation(s)
- Hellas Cena
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy; (H.C.); or (M.M.)
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (A.V.); (R.D.G.)
| | - Lauren Fiechtner
- Division of General Academic Pediatrics, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, MA 02114, USA;
- Division of Gastroenterology and Nutrition, Massachusetts General Hospital for Children, Boston, MA 02114, USA
- Center for Pediatric Nutrition, Harvard Medical School, Boston, MA 02115, USA
| | - Alessandra Vincenti
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (A.V.); (R.D.G.)
| | | | - Rachele De Giuseppe
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy; (A.V.); (R.D.G.)
| | - Matteo Manuelli
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy; (H.C.); or (M.M.)
| | - Gian Vincenzo Zuccotti
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.M.); (G.V.Z.)
- “L. Sacco” Department of Biomedical and Clinical Science, University of Milan, 20157 Milan, Italy
| | - Valeria Calcaterra
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (V.C.M.); (G.V.Z.)
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy
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Mariggiò MA, Palumbi R, Vinella A, Laterza R, Petruzzelli MG, Peschechera A, Gabellone A, Gentile O, Vincenti A, Margari L. DRD1 and DRD2 Receptor Polymorphisms: Genetic Neuromodulation of the Dopaminergic System as a Risk Factor for ASD, ADHD and ASD/ADHD Overlap. Front Neurosci 2021; 15:705890. [PMID: 34658761 PMCID: PMC8511701 DOI: 10.3389/fnins.2021.705890] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/07/2021] [Indexed: 01/18/2023] Open
Abstract
The dopaminergic system (DS) is one of the most important neuromodulator systems involved in complex functions that are compromised in both autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD), conditions that frequently occur in overlap. This evidence suggests that both disorders might have common neurobiological pathways involving the DS. Therefore, the aim of this study was to examine the DRD1 and DRD2 dopamine receptor single nucleotide polymorphisms (SNPs) as potential risk factors for ASD, ADHD, and ASD/ADHD overlap. Genetic data were obtained from four groups: 75 ASD patients, 75 ADHD patients, 30 patients with ASD/ADHD overlap, and 75 healthy controls. All participants were between 2 and 17 years old. We compared the genotypic and allelic frequency of 18 SNPs among all of the study groups. Moreover, in the case of statistically significant differences, odds ratios (OR) were obtained to evaluate if the presence of SNPs might be a risk factor of developing a specific clinical phenotype. This study found that DRD1 and DRD2 receptors SNPs might be considered as potential risk factors for ASD and ADHD. However, only DRD2-12 (rs7131465) was significantly associated with a higher risk for the ASD/ADHD overlap. These data support the hypothesis of the genetic neuromodulation of the DS in the neurobiology of these conditions.
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Affiliation(s)
| | - Roberto Palumbi
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Angela Vinella
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Riccardo Laterza
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | | | - Antonia Peschechera
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Alessandra Gabellone
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Ottavio Gentile
- Pediatric Surgery Unit, Giovanni XXIII Hospital, Bari, Italy
| | - Alessandra Vincenti
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Lucia Margari
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
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Vincenti A, Bertuzzo L, Limitone A, D’Antona G, Cena H. Perspective: Practical Approach to Preventing Subclinical B12 Deficiency in Elderly Population. Nutrients 2021; 13:1913. [PMID: 34199569 PMCID: PMC8226782 DOI: 10.3390/nu13061913] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/25/2021] [Accepted: 05/30/2021] [Indexed: 12/11/2022] Open
Abstract
Vitamin B12 (also known as cobalamin) is an essential water-soluble vitamin that plays a pivotal role for several physiologic functions during one's lifespan. Only certain microorganisms are able to synthetize B12, thus humans obtain cobalamin exclusively from their diet, specifically from animal-derived foods. Specific sub-group populations are at risk of vitamin B12 subclinical deficiency due to different factors including poor intake of animal source foods and age-dependent decrease in the capacity of intestinal B12 uptake. Consumption of animal products produces some negative health issues and negatively impacts sustainability while a plant-based diet increases the risk of B12 deficiency. Taking a cue from the aforementioned considerations, this narrative review aims to summarize facts about B12 deficiency and the burden of inadequate dietary intake in elderly population, as well as to discuss sustainable approaches to vitamin B12 deficiency in aging population.
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Affiliation(s)
- Alessandra Vincenti
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy;
| | - Laura Bertuzzo
- Glaxosmithkline (GSK) Consumer Healthcare, via Zambeletti s.n.c., 20021 Baranzate, Italy; (L.B.); (A.L.)
| | - Antonio Limitone
- Glaxosmithkline (GSK) Consumer Healthcare, via Zambeletti s.n.c., 20021 Baranzate, Italy; (L.B.); (A.L.)
| | - Giuseppe D’Antona
- Centro di Ricerca Interdipartimentale nelle Attività Motorie e Sportive (CRIAMS)—Sport Medicine Centre, University of Pavia, 27058 Voghera, Italy;
| | - Hellas Cena
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy;
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy
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Russi S, Vincenti A, Vinella A, Mariggiò MA, Pavone F, Dammacco F, Lauletta G. CD5/CD20 expression on circulating B cells in HCV-related chronic hepatitis and mixed cryoglobulinemia. Eur J Intern Med 2019; 66:48-56. [PMID: 31126779 DOI: 10.1016/j.ejim.2019.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/09/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023]
Abstract
The role of CD5+ B cells in patients with HCV infection and HCV-related disorders, including mixed cryoglobulinemia (MC), has been addressed in previous reports with conflicting results. We established a correlation between CD5/CD20 expression on circulating B lymphocytes, characterizing monoclonal B cell lymphocytosis (MBL), and clinical features in a cohort of 45 patients with chronic HCV hepatitis [without MC: 23 patients (MC- group); with MC: 22 patients (MC+ group)], and 45 HCV-negative healthy subjects as controls. By flow cytometry analysis, three B cells phenotypes were singled out: 1) CD5+CD20dim (CLL-like phenotype); 2) CD5+CD20bright (atypical phenotype); and 3) CD5-CD20+ phenotype. CD5+CD20bright cells were reduced in MC- patients (p=0.049). CD5+CD20dim B cells were significantly higher in group B than in the control group (p=0.003). ROC curve analysis in MC+ patients showed the highest positive likelihood ratio at ≥7.35% (p=0.008) for CLL-like phenotype and at ≤63.6% (p=0.03) for the CD5-CD20+ B cell phenotype. HCV infection was associated with a higher frequency of CLL-like (odds ratio=16, p=0.002) and a lower frequency of atypical (odds ratio: 3.1, p=0.02) and CD5-CD20+ (odds ratio: 11, p=0.01) phenotypes. The association with higher levels of CLL-like phenotype progressively increased from group of MC- patients (odds ratio: 9.3, p=0.04) to the group of MC+ patients (odds ratio: 25.1, p=0.0003). CONCLUSIONS: The occurrence of a CLL-like pattern may allow to identify HCV-infected patients at risk of developing MC and eventually non-Hodgkin lymphoma, who should require a closer surveillance and a longer follow-up.
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Affiliation(s)
- Sabino Russi
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy; Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy.
| | - Alessandra Vincenti
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy
| | - Angela Vinella
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
| | | | - Fabio Pavone
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy; Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), IRCCS, Meldola, FC, Italy
| | - Franco Dammacco
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
| | - Gianfranco Lauletta
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
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Abstract
SummaryThimerosal, a sulphydryl inhibitor, induces aggregation of normal platelet rich plasma over a wide range of concentrations. Low doses induce a monophasic response preceded by a lag phase, high doses produce an immediate biphasic response.Thimerosal induces platelet aggregation through its binding by sulphydryl groups.Thimerosal induced aggregation is not mediated by ADP, it is not influenced by fibrinogen, von Willebrand factor, calcium, and magnesium ions of the medium.Thimerosal induced platelet aggregation is normal in patients affected by thrombocyto-pathia (defect of ADP release) but not in patients affected by Glanzmann’s thrombasthenia. Mercaptopropionglycine, a substance which tends to preserve SH groups, inhibits platelet aggregation induced by thimerosal, thrombin, collagen, and ADP.A mechanism is proposed for thimerosal induced aggregation and the role of SH groups also in ADP, thrombin and collagen induced aggregation is indicated.
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Margari L, Legrottaglie AR, Vincenti A, Coppola G, Operto FF, Buttiglione M, Cassano A, Bartolomeo N, Mariggiò MA. Association between SCN1A gene polymorphisms and drug resistant epilepsy in pediatric patients. Seizure 2018; 55:30-35. [PMID: 29353705 DOI: 10.1016/j.seizure.2018.01.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/29/2017] [Accepted: 01/02/2018] [Indexed: 12/16/2022] Open
Abstract
PURPOSE "Single Nucleotide Polymorphisms (SNPs)" could be an important explanation of drug resistance in epilepsy. The aim of this study was to investigate if genetic polymorphisms (SNPs) of the SCN1A gene could influence the response to anti - epileptic drugs (AED) and if they could predispose to a drug resistant epilepsy in pediatric patients. METHODS We investigated SNPs in exon and intronic regions of the SCN1A gene in a sample of 120 pediatric patients, in both drug-resistant and drug-responsive patients. Association between polymorphisms and refractory epilepsy were investigated by comparing SNPs in exon and intronic regions between the two groups. The genotypes of each intronic polymorphism in the drug-resistant group was analyzed. Odds ratios and confidence intervals were calculated. RESULTS None of the SNPs identified in exons of the SCN1A gene were associated with drug-resistance. In the intronic regions, a statistically significant difference was found in the prevalence of three polymorphisms was found between the two patient groups (rs6730344A/C, rs6732655A/T, rs10167228A/T). The analysis of the genotypes of each intronic polymorphism in the drug-resistant group revealed that the AA and AT genotypes for the rs1962842 polymorphism are associated with an increased risk of developing drug resistance compared to TT genotype. CONCLUSION The intronic rs6730344, rs6732655 and rs10167228 polymorphisms of the SCN1A gene are a potential risk factors for drug resistance. AA e AT genotype of the rs1962842 intronic polymorphism also emerged as a risk factor in the drug resistant group. Therefore, polymorphisms of the SCN1A gene could play a role in the response to AED in patients with drug-resistant epilepsy, with important implications for clinical practice.
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Affiliation(s)
- Lucia Margari
- Child Neuropsychiatry Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Italy.
| | - Anna R Legrottaglie
- Child Neuropsychiatry Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Italy
| | - Alessandra Vincenti
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Italy
| | - Giangennaro Coppola
- Child Neuropsychiatry Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Italy
| | - Francesca F Operto
- Child Neuropsychiatry Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Italy
| | - Maura Buttiglione
- Child Neuropsychiatry Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Italy
| | - Amalia Cassano
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Italy
| | - Nicola Bartolomeo
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Italy
| | - Maria A Mariggiò
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Italy
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Hamouche W, Maurini C, Vidoli S, Vincenti A. Multi-parameter actuation of a neutrally stable shell: a flexible gear-less motor. Proc Math Phys Eng Sci 2017; 473:20170364. [PMID: 28878569 DOI: 10.1098/rspa.2017.0364] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/19/2017] [Indexed: 11/12/2022] Open
Abstract
We have designed and tested experimentally a morphing structure consisting of a neutrally stable thin cylindrical shell driven by a multi-parameter piezoelectric actuation. The shell is obtained by plastically deforming an initially flat copper disc, so as to induce large isotropic and almost uniform inelastic curvatures. Following the plastic deformation, in a perfectly isotropic system, the shell is theoretically neutrally stable, having a continuous set of stable cylindrical shapes corresponding to the rotation of the axis of maximal curvature. Small imperfections render the actual structure bistable, giving preferred orientations. A three-parameter piezoelectric actuation, exerted through micro-fibre-composite actuators, allows us to add a small perturbation to the plastic inelastic curvature and to control the direction of maximal curvature. This actuation law is designed through a geometrical analogy based on a fully nonlinear inextensible uniform-curvature shell model. We report on the fabrication, identification and experimental testing of a prototype and demonstrate the effectiveness of the piezoelectric actuators in controlling its shape. The resulting motion is an apparent rotation of the shell, controlled by the voltages as in a 'gear-less motor', which is, in reality, a precession of the axis of principal curvature.
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Affiliation(s)
- W Hamouche
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France
| | - C Maurini
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France
| | - S Vidoli
- Sapienza Università di Roma, Dip. di Ingegneria Strutturale e Geotecnica, Via Eudossiana 18, 00184 Rome, Italy
| | - A Vincenti
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France
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12
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Montemurro P, Mariggiò MA, Barbuti G, Cassano A, Vincenti A, Serio G, Guerra L, Diana A, Santostasi T, Polizzi A, Fumarulo R, Casavola V, Manca A, Conese M. Increase in interleukin-8 production from circulating neutrophils upon antibiotic therapy in cystic fibrosis patients. J Cyst Fibros 2012; 11:518-24. [PMID: 22608703 DOI: 10.1016/j.jcf.2012.04.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/22/2012] [Accepted: 04/25/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND It is not known whether antibiotic therapy for lung disease in cystic fibrosis (CF) has an influence on circulating polymorphonuclear neutrophil (PMN) function and apoptosis. PATIENTS AND METHODS Blood PMNs were obtained from 14 CF patients before and after antibiotic treatment for an acute exacerbation, and from 10 healthy controls. PMNs were evaluated for production of reactive oxygen species (ROS) by spectrophotometry, of cytokines in the conditioned medium by ELISA, and apoptotic response by cytofluorimetry. RESULTS ROS and interleukin (IL)-8 were produced at higher levels by CF PMNs pre-therapy than control PMNs under basal conditions. IL-8 levels further increased after therapy. Early apoptotic response was higher in CF PMNs pre-therapy than in control PMNs, and this pattern did not change after antibiotic treatment. CONCLUSIONS Circulating PMNs are primed in CF acute patients. Further studies are needed to consider PMN-produced IL-8 as a biomarker to evaluate response to antibiotic therapy in CF patients.
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Affiliation(s)
- Pasqualina Montemurro
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari, Bari, Italy
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Brignole M, Botto GL, Mont L, Oddone D, Iacopino S, De Marchi G, Campoli M, Sebastiani V, Vincenti A, Garcia Medina D, Osca Asensi J, Mocini A, Grovale N, De Santo T, Menozzi C. Predictors of clinical efficacy of ‘Ablate and Pace’ therapy in patients with permanent atrial fibrillation. Heart 2011; 98:297-302. [DOI: 10.1136/heartjnl-2011-301069] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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14
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Vincenti A, Ventriglio A, Baldessarini RJ, Talamo A, Fitzmaurice G, Centorrino F. Characteristics and clinical changes during hospitalization in bipolar and psychotic disorder patients with versus without substance-use disorders. Pharmacopsychiatry 2010; 43:225-32. [PMID: 20652858 DOI: 10.1055/s-0030-1254153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Co-morbid substance-use disorders (SUDs) are prevalent among patients with severe psychiatric disorders, but the characteristics of such patients remain incompletely defined, and their current treatments and responses, poorly documented. METHODS We evaluated the records of 481 consecutive inpatients diagnosed with DSM-IV bipolar or schizoaffective disorders, or schizophrenia, admitted to McLean Hospital in 2004 or 2009. Demographic and clinical characteristics, and treatments, were extracted from hospital and pharmacy records for bivariate and multivariate analyses. RESULTS SUD prevalence increased 1.84-times from 2004 (31.3%) to 2009 (57.6%). Patients with (n=204) versus without co-morbid SUDs (n=277) were similar in many respects, but in multivariate modeling, the following factors were more likely with SUD, in rank-order: co-morbid anxiety disorders > men more than women > greater prevalence in 2009 vs. 2004 > younger age > greater doses of mood-stabilizers > shorter hospitalization. CONCLUSIONS Hospitalized patients with severe primary psychiatric disorders, and comorbid SUD were more likely to be young and have anxiety disorders, to receive more combinations and higher doses of mood-stabilizers, and show more improvement in impulsivity and hostility, but otherwise differed little in treatment-responses. Prevalence of SUD rose substantially in the past five years, with increased but largely unproved use of mood-stabilizers.
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Affiliation(s)
- A Vincenti
- Department of Neurosciences, Mental Health, and Sensory Functions (NESMOS), Second Medical School, Sapienza University of Rome, and Unit of Psychiatry, Sant' Andrea Hospital, Rome, Italy
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Mariggiò M, Cassano A, Vinella A, Vincenti A, Fumarulo R, Muzio LL, Maiorano E, Ribatti D, Favia G. Enhancement of Fibroblast Proliferation, Collagen Biosynthesis and Production of Growth Factors as a Result of Combining Sodium Hyaluronate and Aminoacids. Int J Immunopathol Pharmacol 2009; 22:485-92. [DOI: 10.1177/039463200902200225] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Fibroblasts play a key role in tissue healing by producing the majority of extracellular matrix components, favouring granulation tissue formation, and stimulating re-epithelialization. Hyaluronan is a component of ECM and its anti-inflammatory effects and properties in enhancing wound closure are well known. In this study, we examined the effects of Aminogam® gel, a new pharmacological preparation suggested to improve wound healing, composed of hyaluronic acid, proline, lysine, glycine and leucine, on human fibroblasts. Results show that fibroblasts treated with hyaluronic acid plus aminoacid solution increased their proliferative activity, collagen I and III, and fibronectin synthesis. Moreover, HA plus aminoacid solution increased the expression of transforming growth factor beta, connective tissue growth factor, interleukin-6 and −8, assayed by RT-PCR. These results suggested that Aminogam® gel, involved in several stages of wound healing, as fibroblast proliferation, granulation tissue formation, ECM component deposition, and production of cytokines, may be a useful device to favour and accelerate wound closure.
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Affiliation(s)
| | | | | | | | | | - L. Lo Muzio
- Department of Surgical Sciences, University of Foggia Medical School, Italy
| | | | - D. Ribatti
- Department of Human Anatomy and Histology, Italy
| | - G. Favia
- Department of Dental Sciences and Surgery, University of Bari Medical School, Italy
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16
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Marina R, Vincenti A, Ratti L, Pozzi M, Fumagalli Maldini F. Percutaneous closure after inadvertent carotid artery cannulation. Puncture repair with angio-seal deployment. A case report. Neuroradiol J 2007; 20:355-8. [PMID: 24299681 DOI: 10.1177/197140090702000319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Accepted: 06/07/2007] [Indexed: 12/16/2022] Open
Abstract
Inadvertent placement of an introducer sheath in an artery during central venous cannulation is rare and can result in devastating complications. Although traditional closure devices have been employed as prompt and adequate treatment, more innovative devices such as collagen plugs are being studied for their efficacy. We report a case of inadvertent insertion of an 8 French sheath into the right carotid artery which occurred in the electrophysiological laboratory during scheduled transjugular measurement of portal pressure gradient. The consultant neuroradiologist successfully removed the arterial sheath and the puncture site was sealed with a collagen-based vascular closure device (Angio-Seal STS Plus). Accidental insertion of an arterial sheath is an uncommon but potentially serious complication of jugular venous catheterization. When the carotid artery is inadvertently cannulated, sheath removal can be complicated by significant hemorrhage and acute dyspnea due to location of the vessel near the upper airways. Although traditional manual compression and closure devices have been effective at restoring hemostasis, collagen seals or plugs may be more viable to treat this precarious situation. This averted an otherwise emergent open surgical procedure to remove the sheath and repair the carotid artery in a high-risk patient.
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Affiliation(s)
- R Marina
- Neuroradiology Unit, Radiology Department, Milano Bicocca-University, A.O. San Gerardo; Monza, Italy -
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Cesari A, Kaiser GG, Mucci N, Mutto A, Vincenti A, Fornés MW, Alberio RH. Integrated morphophysiological assessment of two methods for sperm selection in bovine embryo production in vitro. Theriogenology 2006; 66:1185-93. [PMID: 16647751 DOI: 10.1016/j.theriogenology.2006.03.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Accepted: 03/02/2006] [Indexed: 11/28/2022]
Abstract
Extensive work was done regarding the ability of Swim up and Percoll gradient to select functional sperm for in vitro embryo production (IVP) systems. The aim of this work was to compare Swim up and Percoll as methods of sperm selection by ultrastructural, biochemical and functional studies. Frozen-thawed semen from two bulls (Experiments 1 and 2, respectively) were treated using Swim up or Percoll discontinuous gradients. Motility, sperm membrane ultrastructure, sperm proteins, in vitro embryo production (insemination doses, cleavage, embryo yield and quality) and embryo sex ratio were scored and compared. Electron transmission microscopy of outer sperm membranes showed higher (P<0.05) percentage of sperm with lost acrosomes in Percoll treated samples compared to Swim up. A differential protein pattern was also detected. When in vitro embryo production was performed, Percoll gradient produced higher (P<0.05) number of fertilizing doses (7.6 versus 5.9, Bull 1; 13.5 versus 7.8, Bull 2) and higher sperm motility (90% versus 76.6%, Bull 1; 81.7% versus 68.3%, Bull 2) than Swim up. The percentage of cleavage (Day 3) was similar in both treatment groups, whereas embryo production rate (Day 7) was higher (39.4% versus 30.2%, Bull 1; 38% versus 32.4%, Bull 2; P<0.05) when Percoll gradient was used. The percentage of hatched embryos (Day 11) and sex ratio did not differ. Total cell counting and embryo differential staining (inner cell mass and trophoblast cells) of Day 7 embryos showed that Percoll treated sperm produced better quality embryos compared to Swim up. We concluded that Percoll had a better performance selecting sperm and an enhanced capacity for embryo production when compared with the Swim up procedure; this could be attributed to a better acrosome exocytosis, associated to the absence of certain membrane proteins.
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Affiliation(s)
- A Cesari
- Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales, UNMdP. CC:1245 (7600) Mar del Plata, Buenos Aires, Argentina.
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18
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Ancarani F, Angeli E, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, Monforte AD, Cingolani A, Galli M, Orofino GC, Girardi E, Marino N, Bongiovanni M, Morsica G, Narciso P, Pastecchia C, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Maracci M, Tirelli U, Cinelli R, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, De Marco M, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetti S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Lepri AC, Solmone M, Girardi E, Lalle E, Abbate I, Monforte AD, Cozzi-Lepri A, Alessandrini A, Piscopo R, Ebo F, Cosco L, Antonucci G, Ippolito G, Capobianchi MR. Evolution of HVR-1 Quasispecies after 1-Year Treatment in HIV/HCV-Coinfected Patients According to the Pattern of Response to Highly Active Antiretroviral Therapy. Antivir Ther 2006. [DOI: 10.1177/135965350601100102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hepatitis C virus (HCV) variability is mainly attributed to the ability of the virus to respond to host immune pressure, acting as a driving force for the evolution of quasispecies. This study was aimed at studying the changes in HVR-1 heterogeneity and the evolution of HCV quasispecies in HIV/HCV-coinfected patients according to the pattern of response to highly active antiretroviral therapy (HAART). Sixteen HIV/HCV-coinfected patients harbouring HCV genotype 1 and who had been on HAART for at least 1 year, 8 showing increasing CD4+T-cell counts (immunological responders) and 8 showing a stable or decreasing CD4+ T-cell counts (immunological non-responders), were selected from a prospective cohort study. After 1 year of HAART, 11 patients showed HIV viral load <2.6 log10 cp/ml (virological responders), and 5 showed HIV viral load above this value (virological non-responders). Plasma samples, collected before starting therapy and after 1 year of HAART, underwent clonal sequence analysis for HVR-1 region of HCV. Non-synonymous/synonymous substitutions ratio (Ka/Ks), aminoacidic complexity (normalized Shannon entropy) and diversity (p-distance), were considered as parameters of quasispecies heterogeneity. After 1 year of HAART, heterogeneity of HVR-1 quasispecies significantly decreased in virological non-responders, whereas the heterogeneity tended to increase in virological responders. The differences in the evolution were less stringent, when considering immunological response. On the other hand, profound qualitative modifications of HVR-1 quasispecies were observed only in patients with both immunological and virological HAART response. On the whole, these findings suggest that, in patients undergoing HAART, the extent of HCV variability and the evolution of HVR-1 quasispecies is influenced by the pattern of response to antiretroviral therapy.
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Affiliation(s)
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- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Eleonora Lalle
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Isabella Abbate
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | | | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London
| | | | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova
| | - Francesca Ebo
- Department of Infectious Diseases, Hosp Civile San Giovanni e Paolo, Venezia
| | - Lucio Cosco
- Department of Infectious Diseases, A. Pugliesi Catanzaro
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Vincenti A, Greco F. MICOPLASMI UROGENITALI: FREQUENZA DI ISOLAMENTO E SENSIBILITÀ AGLI ANTIBIOTICI. CINQUE ANNI DI OSSERVAZIONE. Microbiol Med 2005. [DOI: 10.4081/mm.2005.3489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Cesari A, Katunar MR, Monclus MA, Vincenti A, de Rosas JC, Fornés MW. Serine protease activity, bovine sperm protease, 66 kDa (BSp66), is present in hamster sperm and is involved in sperm–zona interaction. Reproduction 2005; 129:291-8. [PMID: 15749956 DOI: 10.1530/rep.1.00375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bovine sperm protease, 66 kDa (BSp66) is a serine protease previously characterized in bovine spermatozoa. Like other proteases, it may be present in sperm from other mammalian species different from bovine, playing a role in the fertilization process. In this study, we looked for BSp66 in hamster spermatozoa using heterologous antibodies against bovine BSp66. An immunoreactive protein was detected by Western blotting in mature and immature sperm. The detected protein had two isoforms similar to the ones reported in bovine sperm. Furthermore, indirect immune detection by fluorescence and electron microscopy assays, showed BSp66 signal at the acrosomal region similar to bovine sperm. As it was determined in bovine sperm, the acrosomal reaction displays the antigen within the acrosomal content. When live hamster sperm was incubated with polyclonal antibody against bovine BSp66 a decrease in the number of sperm bound to zona pellucida in homologous IVF and an impairment of head–head agglutination, were observed. These results suggest that a protease homologous to bovine BSp66 is present in golden hamster spermatozoa, with a conserved molecular mass and cellular location. Moreover, hamster BSp66 is probably involved in zona pellucida recognition.
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Affiliation(s)
- A Cesari
- Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CC: 1245 (7600) Mar del Plata, Buenos Aires, Argentina.
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Antonucci G, Girardi E, Cozzi-Lepri A, Capobianchi MR, Morsica G, Pizzaferri P, Ladisa N, Sighinolfi L, Chiodera A, Solmone M, Lalle E, Ippolito G, Monforte AD, Ancarani F, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, d'Arminio Monforte A, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Prete MSD, Tirelli U, Cinelli R, Pastore G, Ladisa N, Suter GMBF, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, Marco MD, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, Stefano CD, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, Luca AD, Giambenedetti SD, Zaccarelli M, Acinapura R, Longis PD, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, Lalla FD, Tositti G, Lepri AC. Response to Haart and Gb Virus Type C Coinfection in a Cohort of Antiretroviral-Naive HIV-Infected Individuals. Antivir Ther 2005. [DOI: 10.1177/135965350501000108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The prognostic role of GB virus type C (GBV-C) viraemia in HIV-infected subjects treated with highly active antiretroviral therapy (HAART) is still undefined, The aim of this analysis is to assess the relationship between GBV-C infection and response to antiretroviral therapy among HIV-infected subjects initiating HAART when antiretroviral-naive. A prospective, observational study of 400 HIV-infected patients with measurements of GBV-C RNA, hepatitis C virus (HCV) antibodies and HCV RNA determined from plasma stored prior to HAART initiation, Time to virological (achieving HIV RNA ≤500 copies/ml) and immunological success (a CD4+ count increase of ≥200cells/μl), and the time to virological relapse (confirmed HIV RNA >500 copies/ml) were assessed by Kaplan-Meier methods and Cox proportional hazard regression model. Of the subjects, 117 (29.3%) were GBV-C positive and, overall, 351 (87.8%) patients achieved virological success, After controlling for a number of confounders including HCV RNA, GBV-C viraemic patients experienced a significantly lower risk of HIV rebound than those who were GBV-C negative [relative hazard (RH)=0.56, 95% CI: 0.34–0.93, P=0.03], Conversely, the probability of achieving initial virological success or CD4+ count response after HAART did not differ between GBV-C-negative and -positive subjects, These results suggest that GBV-C coinfection may play a role in determining the rate of HIV rebound possibly by competing with HIV replication after HIV load has been successfully suppressed by HAART.
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Affiliation(s)
| | - Giorgio Antonucci
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Enrico Girardi
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Giulia Morsica
- Institute of Infectious Diseases, Ateneo Vita e Salute, S Raffaele Hospital, Milano, Italy
| | - Paolo Pizzaferri
- Department of Infectious Diseases and Hepatology, Azienda Ospedaliera, Parma, Italy
| | - Nicoletta Ladisa
- Institute of Infectious and Tropical Diseases, University of Bari, Bari, Italy
| | - Laura Sighinolfi
- Department of Infectious Diseases, Arcispedale S Anna, Ferrara, Italy
| | | | | | - Eleonora Lalle
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Giuseppe Ippolito
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
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Cesari A, Katunar MR, Monclus MA, Vincenti A, Fornés MW. BSp66 protease is widespread in the acrosomal region of sperm from several mammalian species. Biochem Biophys Res Commun 2004; 324:874-7. [PMID: 15474509 DOI: 10.1016/j.bbrc.2004.09.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2004] [Indexed: 10/26/2022]
Abstract
Fertilization in mammals comprises a sequence of events leading to the fusion of sperm and oocyte membranes. Although proteases are known to be involved in this process, their role in fertilization is controversial. There is extensive work on the characterization of proteolytic systems, including serine proteases, which demonstrates that acrosomal proteases can be distinguished among the sperm of different mammalian species on the basis of the gelatin-hydrolyzing activity on SDS-PAGE by the quantity and variety of the enzymes. In this report, we investigated the occurrence and activity of the serine protease BSp66, previously characterized in bovine spermatozoa, in various mammalian sperm. A protein with a molecular mass of 66 kDa cross-reacted with heterologous antibodies against bovine BSp66 when sperm extracts of several mammalian species were analyzed by Western blot. In agreement, proteolytic activity corresponding to the molecular mass of BSp66 was detected by gelatin zymography in all the species analyzed. This protein was located on the acrosomal region of sperm cells by immunofluorescence methods. We concluded that BSp66 is widespread in mammalian sperm, with a conserved location in the acrosomal region.
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Affiliation(s)
- A Cesari
- Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CC:1245 (7600) Mar del Plata, Buenos Aires, Argentina.
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Luca AD, Cozzi-Lepri A, Perno CF, Balotta C, Giambenedetto SD, Poggio A, Pagano G, Tositti G, Piscopo R, Forno AD, Chiodo F, Magnani G, Monforte AD, Angarano G, Antinori A, Balotta C, Cozzi-Lepri A, Monforte AD, De Luca A, Monno L, Perno CF, Rusconi S, Montroni M, Scalise G, Zoli A, Del Prete MS, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetto S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Lepri AC. Variability in the Interpretation of Transmitted Genotypic HIV-1 Drug Resistance and Prediction of Virological Outcomes of the Initial Haart by Distinct Systems. Antivir Ther 2004. [DOI: 10.1177/135965350400900505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
High level HIV-1 drug resistance in recently infected treatment-naive individuals correlates with sub-optimal virological responses to highly active antiretroviral therapy (HAART). To determine whether genotypic HIV-1 drug resistance in chronic naive patients, as interpreted by various systems, could predict the virological outcomes of HAART, isolates from patients enrolled in a prospective observational cohort (ICoNA) prior to treatment start were genotyped. Genotypic susceptibility scores (GSS) assigned to the initial HAART regimens using the interpretations of pre-therapy resistance mutations by 13 systems were related to virological outcomes. Of 415 patients, 42 (10%) had at least one major resistance mutation. According to the different interpretations, 1.9–20.5% of patients had some level of resistance to at least one drug in the initial regimen. In multivariable analysis, GSS from two systems significantly predicted the time to virological success: Rega 5.5, for each unit increase in GSS adjusted relative hazard (RH) 1.86 [95% confidence intervals (95% CI): 1.15–3.02] and hivresistanceWeb v3, RH 1.87 (95% CI: 1.00–3.48). With three other systems, GSS showed a trend towards a significant prediction of success: Retrogram 1.6, RH 2.33 (95% CI: 0.98–5.53), Menéndez 2002, RH 2.36 (95% CI: 0.97–5.72) and Stanford hivdb, RH 2.06 (95% CI: 0.94–4.49). Genotypic resistance testing coupled with adequate interpretation in chronic naive patients can usefully identify those at risk of sub-optimal virological response to HAART.
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Affiliation(s)
| | - Andrea De Luca
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Alessandro Cozzi-Lepri
- Royal Free Centre for HIV Medicine and Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Claudia Balotta
- Institute of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | | | - Antonio Poggio
- Department of Infectious Diseases, Civile Hospital, Verbania, Italy
| | - Gabriella Pagano
- Department of Infectious Diseases, S Martino Hospital, Genova, Italy
| | - Giulia Tositti
- Department of Infectious Diseases, Vicenza Hospital, Vicenza, Italy
| | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova, Italy
| | - Antonio Del Forno
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Francesco Chiodo
- Institute of Infectious Diseases, University of Bologna, Bologna, Italy
| | - Giacomo Magnani
- Department of Infectious Diseases, Santa Maria Nuova Hospital, Reggio Emilia, Italy
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24
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Puoti M, Cozzi-Lepri A, Ancarani F, Bruno R, Ambu S, Ferraro T, Tundo P, Santantonio T, Toti M, Bonasso M, Monforte AD, Ancarani F, Antonucci G, Bonasso M, Bruno R, Cozzi-Lepri A, Monforte AD, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Zoli A, Prete MSD, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Lo Caputo S, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Ortona L, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Del Forno L, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Cozzi-Lepri A. The Management of Hepatitis B Virus/HIV-1 Co-Infected Patients Starting Their First Haart Regimen. Treating Two Infections for the Price of One Drug? Antivir Ther 2004. [DOI: 10.1177/135965350400900506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We examined the impact of a lamivudine-containing highly active antiretroviral therapy (HAART) regimen on 164 hepatitis B virus/HIV co-infected individuals starting their first HAART. Lamivudine-treated patients (accounting for 73% of the study population) showed a significantly lower level of alanine aminotransferase over follow-up [–81.1 mU/ml mean difference; 95% confidence intervals (95% CI): –30.3; –131.7, P=0.003] and a significantly reduced risk of liver-related morbidity/mortality [Relative hazard (RH)=0.07; 95% CI: 0.01–0.38, P=0.002] than those starting a lamivudine sparing-regimen.
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Affiliation(s)
| | - Massimo Puoti
- Institute of Infectious and Tropical Diseases, Spedali Civili, University of Brescia, Brescia, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | - Fausto Ancarani
- Institute of Infectious Diseases and Public Health, Umberto I Hospital, University of Ancona, Ancona, Italy
| | - Raffaele Bruno
- Institute of Infectious and Tropical Diseases, IRCCS S Matteo, University of Pavia, Pavia, Italy
| | - Silvia Ambu
- Department of Infectious Diseases, Azienda Ospedaliera Careggi, Firenze, Italy
| | - Teresa Ferraro
- Department of Infectious Diseases, Ospedale A Puglise, Catanzaro, Italy
| | - Paolo Tundo
- Department of Infectious Diseases, Ospedale Santa Caterina Novella, Galatina (Lecce), Italy
| | | | - Mario Toti
- Department of Infectious Diseases, Ospedale di Grosseto, Grosseto, Italy
| | - Marino Bonasso
- Department of Infectious Diseases, Ospedale ‘Amedeo Savoia’, Torino, Italy
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25
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Vincenti A, Greco F. URINOCOLTURE: FREQUENZA DI ISOLAMENTO DEI GERMI E ATTIVITÀ ANTIMICROBICA. ESPERIENZA DI UN LABORATORIO PRIVATO. Microbiol Med 2004. [DOI: 10.4081/mm.2004.3919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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26
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Antinori A, Cozzi-Lepri A, Ammassari A, Trotta MP, Nauwelaers D, Hoetelmans R, Murri R, Melzi S, Narciso P, Nasta P, Zaccarelli M, Santopadre P, Vecchiet J, Izzo CM, Monforte AD, Tirelli U, Nasti G, Carosi G, Nasta P, Manconi PE, Piano P, Pizzigallo E, Dalessandro M, Vecchiet J, Mazzotta F, Caputo SL, Soscia F, Tacconi L, Scasso A, Vincenti A, Scalzini A, Fibbia GC, Moroni M, Manforte AD, Melzi S, Esposito R, Mussini C, Piazza M, Abrescia N, Izzo MC, Marco MD, Manzillo E, Nappa S, Alberici F, Sisti M, Baldelli F, Loso K, Mele P, Acinapura R, Ammassari A, Antinori A, Antonucci G, Ciardi M, Delia S, Longis PD, D'Offizi G, Ippolito G, Lichtner M, Marconi P, Murri R, Narciso P, Noto P, Petrosillo N, Pezzotti P, Santopadre P, Trotta MP, Vullo V, Zaccarelli M, Caramello P, Orofino GC, Cozzi-Lepri A, Baltimore MD, Wu AW. Relative Prognostic Value of Self-Reported Adherence and Plasma Nnrti/Pi Concentrations to Predict Virological Rebound in Patients Initially Responding to Haart. Antivir Ther 2004. [DOI: 10.1177/135965350400900214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We studied the predictive value of self-reported adherence and plasma drug concentrations on virological rebound to HAART. Among 238 participants in the AdICoNA study who had viral load ≤500 copies/ml, 42 (17.6%) experienced virological rebound by 96 weeks. Both self-reported non-adherence and sub-optimal concentration were independently associated with a higher risk of virological rebound.
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Affiliation(s)
| | - Andrea Antinori
- Istituto Nazionale per le Malattie Infettive, L Spallanzani IRCCS, Roma, Italy
| | | | - Adriana Ammassari
- Istituto di Clinica delle Malattie Infettive, Università Cattolica del S Cuore, Roma, Italy
| | - Maria Paola Trotta
- Istituto Nazionale per le Malattie Infettive, L Spallanzani IRCCS, Roma, Italy
| | | | | | - Rita Murri
- Istituto di Clinica delle Malattie Infettive, Università Cattolica del S Cuore, Roma, Italy
| | - Sara Melzi
- Istituto di Malattie Infettive e Tropicali, Università di Milano, Milano, Italy
| | - Pasquale Narciso
- Istituto Nazionale per le Malattie Infettive, L Spallanzani IRCCS, Roma, Italy
| | - Paola Nasta
- Istituto di Malattie Infettive e Tropicali, Università di Brescia, Brescia, Italy
| | - Mauro Zaccarelli
- Istituto Nazionale per le Malattie Infettive, L Spallanzani IRCCS, Roma, Italy
| | - Paola Santopadre
- Dipartimento di Malattie Infettive e Tropicali, Università ‘La Sapienza’, Roma. Italy
| | - Jacopo Vecchiet
- Clinica delle Malattie Infettive, Università degli Studi di Chieti, Chieti, Italy
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Cecconi N, Carducci A, Vincenti A, Luchi S, Scasso A. [The behaviour of plasma triglycerides and cholesterol in HIV positive haemophiliacs]. Infez Med 2003; 6:153-155. [PMID: 12768087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Hypertriglyceridemia has frequently been found both in subjects with AIDS and in asymptomatic HIV-positive ones. In order to evaluate the importance of hyperlipemia as an index of the clinical evolution of HIV infection, the levels of triglycerides, total cholesterol and CD4 lymphocytes were determined over a period of 2 years in 8 haemophiliacs with AIDS, 13 asymptomatic HIV-positive and 45 HIV-negative haemophiliacs attending the Operative Unit of Coagulation Disorders of the University of Pisa. The mean concentration of triglycerides and incidence of hypertriglyceridemia were significantly higher in haemophiliacs with AIDS, compared with HIV-negative subjects (p<0.0001), while the triglycerides values of asymptomatic HIV-positives fell between those of the other groups. Cholesterol levels were lower in HIV-positive haemophiliacs and in those with AIDS compared with HIV-negatives. No correlation was found between triglyceride levels and those of CD4 lymphocytes.
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Affiliation(s)
- N. Cecconi
- U.O. Malattie della Coagulazione, Dipartimento di Biomedicina, Universita degli Studi di Pisa, Italy
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Brignole M, Menozzi C, Gasparini M, Bongiorni MG, Botto GL, Ometto R, Alboni P, Bruna C, Vincenti A, Verlato R. An evaluation of the strategy of maintenance of sinus rhythm by antiarrhythmic drug therapy after ablation and pacing therapy in patients with paroxysmal atrial fibrillation. Eur Heart J 2002; 23:892-900. [PMID: 12042011 DOI: 10.1053/euhj.2001.2971] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIMS Permanent atrial fibrillation develops in many patients after ablation and pacing therapy. We compared a strategy that initially allowed patients to remain in atrial fibrillation with a strategy that initially attempted to restore and maintain sinus rhythm. METHODS AND RESULTS In this multicentre randomized controlled trial, 68 patients affected by severely symptomatic paroxysmal atrial fibrillation were assigned, after successful atrioventricular junction ablation and pacing treatment, to antiarrhythmic drug therapy with amiodarone, propafenone, flecainide or sotalol and were compared with 69 patients assigned, after successful AV junction ablation and pacing treatment, to no antiarrhythmic drug therapy. The patients were followed-up for 12 to 24 months (mean 16+/-4). The drug arm patients had a 57% reduction in the risk of developing permanent atrial fibrillation (21% vs 37%, P=0.02). Evaluation after 12 months revealed similar quality of life scores and echocardiographic parameters in the two groups, but the drug arm patients had more episodes of heart failure and hospitalizations (P=0.05). The outcome was similar between the 40 patients who developed permanent atrial fibrillation and the 97 who did not. CONCLUSION Conventional antiarrhythmic therapy reduces the risk of development of permanent atrial fibrillation after ablation and pacing therapy. The present data do not support the concept that the development of permanent atrial fibrillation is related to an adverse outcome when a perfect control of heart rate is obtained by ablation and pacing.
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Affiliation(s)
- M Brignole
- Department of Cardiology and Arrhythmologic Center, Ospedali Riuniti, Lavagna, Italy
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Meini M, Vincenti A, De Gennaro M, Luchi S, Ricciardi L, Moneta S, Malfatti G, Sabot C, Mattei R, Scasso A. Visceral leishmaniasis in AIDS: a case report. Int J Infect Dis 2002. [DOI: 10.1016/s1201-9712(02)90206-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Perno CF, Cozzi-Lepri A, Balotta C, Forbici F, Violin M, Bertoli A, Facchi G, Pezzotti P, Cadeo G, Tositti G, Pasquinucci S, Pauluzzi S, Scalzini A, Salassa B, Vincenti A, Phillips AN, Dianzani F, Appice A, Angarano G, Monno L, Ippolito G, Moroni M, d' Arminio Monforte A. Secondary mutations in the protease region of human immunodeficiency virus and virologic failure in drug-naive patients treated with protease inhibitor-based therapy. J Infect Dis 2001; 184:983-91. [PMID: 11574912 DOI: 10.1086/323604] [Citation(s) in RCA: 87] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2001] [Revised: 06/21/2001] [Indexed: 11/03/2022] Open
Abstract
The role of mutations in protease (PR) and reverse-transcriptase (RT) of human immunodeficiency virus (HIV) in predicting virologic failure was assessed in 248 antiretroviral-naive HIV-positive patients who began a PR inhibitor-containing antiretroviral regimen. Genotypic testing was performed on plasma samples stored before the start of therapy. Twenty-seven patients (10.9%) had mutations in the RT, 5 (2%) carried primary mutations in the PR, and 131 (52.8%) showed only secondary PR mutations. Virologic failure at week 24 occurred in 62 (25.0%) of 248 patients. There was a statistically significant correlation between virologic failure and the number of PR mutations (P= .04, chi(2) test). Mutations at codons 10 and 36 of PR (present in 39.3% and 40.0% of patients in whom treatment failed, respectively) were identified by stepwise logistic regression as the strongest predictors of virologic failure (odds ratio, 2.20; 95% confidence interval, 1.30-3.75; P= .004). If confirmed in independent studies, this result may justify the increased use of HIV genotyping in drug-naive patients requiring antiretroviral therapy.
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Affiliation(s)
- C F Perno
- Istituto di Ricovero e Cura a Carattere Scientifico L. Spallanzani, and Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy.
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Perno CF, Cozzi-Lepri A, Balotta C, Forbici F, Violin M, Bertoli A, Facchi G, Pezzotti P, Angarano G, Arici C, Narciso P, Orani A, Raise E, Scalzini A, Poggio A, Ippolito G, Moroni M, Monforte AD, Montroni M, Scalise G, Costantini A, Del Prete MS, Tirelli U, Nasti G, Pastore G, Perulli LM, Suter F, Arici C, Chiodo F, Gritti FM, Colangeli V, Fiorini C, Guerra L, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Cosco L, Pizzigallo E, Ricci F, Vigevani GM, Pusterla L, Carnevale G, Pan A, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Ambu S, Lo Caputo S, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti, Soscia F, Tacconi L, Orani A, Castaldo G, Scasso A, Vincenti A, Scalzini A, Alessi F, Moroni M, Lazzarin A, Cargnel A, Milazzo F, Caggese L, Monforte AD, Melzi S, Delfanti F, Carini B, Adriani B, Garavaglia S, Moioli C, Esposito R, Mussini C, Abrescia N, Chirianni A, Perrella O, Piazza M, De Marco M, Montesarchio V, Manzillo E, Nappa S, Cadrobbi P, Scaggiante R, Colomba A, Abbadesse V, Prestileo T, Mancuso S, Filice G, Minoli L, Savino FAP, Maserati R, Pauluzzi S, Baldelli F, Petrelli E, Ciotti A, Alberici F, Sisti M, Menichetti F, Smorfa A, De Stefano C, La Gala A, Zauli T, Ballardini G, Bonazzi L, Ursitti MA, Ciammarughi R, Giordani S, Ortona L, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Del Forno A, Zaccarelli M, De Longis P, Ciardi M, D'Offizi G, Palmieri F, Lichter M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Quaglia S, Sciandra M, Salassa B, Torre D, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Lepri AC, Phillips AN. Impact of Mutations Conferring Reduced Susceptibility to Lamivudine on the Response to Antiretroviral Therapy. Antivir Ther 2001. [DOI: 10.1177/135965350100600306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Carlo Federico Perno
- IRCCS L. Spallanzani, Rome, Italy
- Department Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Claudia Balotta
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | - Michela Violin
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | - Guido Facchi
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | | | - Claudio Arici
- Department of Infectious Diseases, Ospedali Riuniti, Bergamo, Italy
| | | | - Anna Orani
- Department of Infectious Diseases, Lecco Hospital, Lecco, Italy
| | - Enzo Raise
- Department of Infectious Diseases, SS Giovanni e Paolo Hospital, Venice, Italy
| | - Alfredo Scalzini
- Department of Infectious Diseases, Mantova Hospital, Mantova, Italy
| | - Antonio Poggio
- Department of Infectious Diseases, Verbania Hospital, Verbania, Italy
| | | | - Mauro Moroni
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
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Abstract
BACKGROUND Common atrial flutter is due to a re-entry circuit in the right atrium. It is possible to entrain and interrupt this arrhythmia with transoesophageal pacing (TEAP) in a substantial percentage of patients. The aim of this study is to evaluate factors associated with failure of transoesophageal cardioversion of common atrial flutter. METHODS One hundred consecutive patients underwent an attempted transoesophageal cardioversion of their common atrial flutter. In order to detect factors associated with failure of this procedure, the following were considered: (a) age and gender; (b) underlying heart disease; (c) time of onset of the arrhythmia; (d) antiarrhythmic treatment at the time of cardioversion; (e) flutter cycle length, (f) A/V deflection ratio at the site of transoesophageal pacing; and (g) longitudinal and transverse diameters of right and left atrium on the echocardiogram. RESULTS In 84 of 100 patients, TEAP modified the atrial flutter circuit: in 23 of these, sinus rhythm was restored; in 31 patients, flutter was converted into atrial fibrillation which spontaneously reverted to sinus rhythm; and in remaining 30 patients, persistent atrial fibrillation was obtained. In 16 cases, no modification in atrial flutter circuit was obtained by TEAP (Group 2). Using univariate analysis, this group of patients showed no significant difference in flutter cycle length, a smaller A/V ratio at the site of TEAP, a longer transverse diameter of left atrium and a shorter transverse diameter of right atrium. Analysis of the therapy at cardioversion shows that no Group 2 patients was on intravenous amiodarone, while a greater percentage of patients of the former group was on chronic amiodarone treatment. A logistic regression model applied to the data showed that flutter cycle length, transverse diameter of left atrium and A/V deflection ratio at the site of TEAP were independent variables with influence on the failure rate. CONCLUSION Transoesophageal pacing is able to modify the circuit of common atrial flutter in a large percentage of patients, and can convert this arrhythmia to sinus rhythm in more than 50% of cases. Failure of this procedure is associated with electrophysiological parameters (flutter cycle length, A/V ratio at the site of TEAP), anatomical factors (left and right atrial diameters) and treatment in use at the time of TEAP.
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Affiliation(s)
- A Vincenti
- Electrophysiology and Cardiac Pacing Unit, Department of Cardiology, St. Gerardo Hospital, Monza, Milan, Italy.
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Lombardi F, Porta A, Marzegalli M, Favale S, Santini M, Vincenti A, De Rosa A. Heart rate variability patterns before ventricular tachycardia onset in patients with an implantable cardioverter defibrillator. Participating Investigators of ICD-HRV Italian Study Group. Am J Cardiol 2000; 86:959-63. [PMID: 11053707 DOI: 10.1016/s0002-9149(00)01130-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Time- and frequency-domain analysis of heart rate variability (HRV) has been proven effective in describing alteration of autonomic control mechanisms and in identifying patients with increased cardiac and arrhythmic mortality. Patients with implantable cardioverter defibrillators offer the opportunity to evaluate HRV patterns before ventricular tachycardia (VT) and under control conditions. We therefore analyzed time- and frequency-domain parameters of short-term HRV and power-law behavior of RR interval time series at rest, at 15 to 30 minutes, and immediately before VT. In comparison to control conditions, lower values of mean cycle length duration and total power were observed before VT. Spectral analysis indicated that the low- to high-frequency ratio was significantly higher (5.5 +/- 0.6 vs 2.8 +/- 0.3) immediately before VT than during rest. Both findings were consistent with the shift of sympathovagal balance toward sympathetic predominance and reduced vagal tone. Before VT, a more negative value of the scaling exponent beta of the power-frequency relation (-1.57 +/- 0.04 vs -1.33 +/- 0.04) also confirmed the presence of an altered HRV pattern in comparison to controls. Thus, both abnormal autonomic modulation and dynamic patterns of HRV seem to characterize the minutes before arrhythmia onset in these patients.
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MESH Headings
- Aged
- Analysis of Variance
- Arrhythmias, Cardiac/complications
- Arrhythmias, Cardiac/diagnosis
- Arrhythmias, Cardiac/therapy
- Autonomic Nervous System/physiopathology
- Defibrillators, Implantable
- Electrocardiography
- Electrocardiography, Ambulatory
- Female
- Heart Rate
- Humans
- Male
- Middle Aged
- Probability
- Reference Values
- Survival Rate
- Tachycardia, Ventricular/complications
- Tachycardia, Ventricular/diagnosis
- Tachycardia, Ventricular/mortality
- Tachycardia, Ventricular/physiopathology
- Tachycardia, Ventricular/therapy
- Treatment Outcome
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Affiliation(s)
- F Lombardi
- Cardiologia, Dipartimento di Medicina, Chirurgia e Odontoiatria, Osp S Paolo, Università di Milano, Milan, Italy.
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Vincenti A, Schena F, Cirò A, De Ceglia S. Predictors of tilting test negativization during beta-blocker treatment in patients with neurocardiogenic syncope. Cardiologia 1999; 44:461-8. [PMID: 10389353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
BACKGROUND The cardioinhibitory and/or vasodepressor reflex, always preceded by adrenergic activation, has recently been accepted as the main mechanism of neuromediated syncope. The aim of this study was to verify if efficacy of beta-blockers, in the treatment of neuromediated syncope, may be predicted on the basis of clinical variables and data derived from tilting test. METHODS We retrospectively analyzed 23 patients with recurrent or traumatic unexplained syncopal episodes, with a positive tilting test, who repeated the test during beta-blocker therapy. According to the second tilting test results, patients were divided into Group 1 (19 patients) with a positive second test, and Group 2 (4 patients) with a negative second test. RESULTS No difference was found between the two groups in age, gender, number of syncopal episodes before observation, and period (days) between the two tests. Moreover, there was no difference between the two groups in the kind of positive response to tilting test, in heart rate at tilting (minimum, maximum, delta and slope of increase), and in the minimum, maximum and slope of heart rate increase before syncope. Delta heart rate before syncope was 15 b/min in Group 1, and 28 b/min in Group 2 (p = 0.011). Taking a discriminant value of 20 b/min, 100% sensitivity and 68% specificity were found. CONCLUSIONS Heart rate increase before syncope identifies patients with negativization of tilting test on beta-blocker therapy. However, the clinical value of the second test for driving therapy is controversial.
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Affiliation(s)
- A Vincenti
- Laboratorio di Elettrofisiologia e Cardiostimolazione, Ospedale San Gerardo dei Tintori, Monza, MI.
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Di Gregorio F, al-Bunni M, Bulla V, Croce A, Moracchini P, Occhetta E, Orlandi M, Vincenti A. Retroconduction selective recognition in wide-dipole floating atrial sensing. The Multicenter Study Group. Pacing Clin Electrophysiol 1997; 20:2817-24. [PMID: 9392813 DOI: 10.1111/j.1540-8159.1997.tb05440.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Effective discrimination of retrogradely conducted P waves would allow distinguishing sinus tachycardia from supraventricular tachycardias due to AV or nodal reentry, and would prevent pacemaker-mediated tachycardia in AV sequential pacing. This might be especially relevant in VDD implants, where retroconduction could be induced by escape ventricular stimulation. In order to analyze the respective waveform properties, anterograde and retrograde atrial signals were recorded by a wide floating electrode dipole, on the implantation of a permanent single-pass lead for VDD pacing. Generally, bipolar recording did not allow reliable discrimination, while the signal nature could be readily diagnosed from the main features of the unipolar atrial electrograms. The unipolar waveform recorded under sinus rhythm in high right atrium, close to the superior vena cava opening (proximal EGM), started with a negative deflection in 88% of the patients. In 7% of the patients, the first deflection of the signal was positive in some cardiac cycles only, and, on the average, the amplitude of the positive phase was not higher than 5% of the signal peak-to-peak amplitude. Conversely, under retroconduction, the starting deflection attained higher positive values in 98% of the patients, being stably over 15% of the peak-to-peak amplitude in 86% of the Furthermore, in 69% of the cases, the lag time between the onset of the negative deflection of proximal and distal (mid-low atrium) unipolar EGM changed unambiguously when retroconduction occurred, exceeding the range of variation observed in each patient during sinus activity. The combined evaluation of unipolar EGM shape and lag time allowed specific retroconduction recognition in 95% of the patients. We suggest that this approach may yield useful information for the discrimination of retrograde atrial signals, provided that the recording dipole is sufficiently long and the proximal electrode is properly positioned in the high right atrium.
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Luchi S, Del Bono L, Vincenti A, Messina F, Scasso A. [Neurological disorder associated to EBV: three case reports]. Infez Med 1997; 5:182-5. [PMID: 15034320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Epstein-Barr virus (EBV) is associated with a wide range of clinical manifestations. Neurological involvement (NI) during Infectious Mononucleosis occur in 1-5% of the cases, the only NI is more rare. From January 1995 to December 1996 three patients with NI and EBV infection have been observed in our department. The diagnosis were: meningoradiculitis (1 case), meningoencephalitis (1 case), aseptic meningitis (1 case). The diagnosis was based on the results of the lumbar puncture and on the serology: IgM VCA positive at the onset of the symptoms and a significant increase of the IgG VCA after three weeks. No other etiology was apparent. All the patients have been treated with dexamethasone, glycerol and acyclovir obtaining a complete remission of the disease. In these cases the NI has been the only clinical manifestation of the EBV infection. Therefore the authors believe that it is important recognize that EBV can cause a myriad of neurological illness with or without the stigmata of infectious mononucleosis and recommend the need to suspect this infection in any acute neurologic disorder.
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Affiliation(s)
- S Luchi
- U.O. Malattie Infettive, Azienda Ospedaliera Pisana, Pisa, Italy
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Abstract
The effect of albendazole was studied in 12 patients with cystic hydatid disease (CHD) of the liver. Six patients received albendazole continuously for 6 months, while 6 patients received albendazole for 6 courses of 4 weeks with a 2 week drug-free interval between cycles. The continuous therapy proved successful, with stable involution at the follow-up at 24 months, while the patients treated with discontinuous therapy showed improvement or relapse. In our experience, continuous therapy was more effective and can be considered to be a suitable alternative or percutaneous therapy in uncomplicated hydatid liver disease, as an initial treatment.
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Affiliation(s)
- S Luchi
- Department of Infectious Diseases, Pisa Hospital, Italy
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Redaelli B, Locatelli F, Limido D, Andrulli S, Signorini MG, Sforzini S, Bonoldi L, Vincenti A, Cerutti S, Orlandini G. Effect of a new model of hemodialysis potassium removal on the control of ventricular arrhythmias. Kidney Int 1996; 50:609-17. [PMID: 8840293 DOI: 10.1038/ki.1996.356] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The primary aim of this multicenter, prospective, randomized cross-over study was to clarify whether a new model of hemodialysis (HD) potassium (K) removal using a decreasing intra-HD dialysate K concentration and a constant plasma-dialysate K gradient (treatment B) is capable of reducing the arrhythmogenic effect of standard HD, which has a constant dialysate K concentration and decreasing plasma-dialysate K gradient (treatment A). The secondary aim was to verify whether this new model is clinically safe. In treatment B, the initial dialysate K concentration had to be 1.5 mEq/liter less than the plasma K concentration, and exponentially decrease to 2.5 mEq/liter at the end of HD. Forty-two chronic HD patients with an increase in premature ventricular complexes (PVC) during dialysis were enrolled from 18 participating centers, and randomly assigned to either sequence 1 (ABA) or sequence 2 (BAB). A pool of 333 of 378 expected ECG Holter recordings were checked for signal quality; 269 (71%) from 36 patients (86%) had a satisfactory signal quality and 108 were selected for analysis (1 per patient per period). There was a difference in the natural logarithm of the increase in PVC/hr and PVC couplets/hr during HD between treatments A and B (1.70 +/- 1.59 vs. 1.09 +/- 1.76 and 0.94 +/- 0.86 vs. 0.64 +/- 1.01, a reduction of 36% and 32%, P = 0.011 and 0.047, respectively) without any carry over effect (P = 0.61 and 0.24, respectively). The fact that this decrease of one third is due to a lower plasma-dialysate K gradient is supported by the observation that it was more evident during the first than the last two hours of HD (a reduction in the natural logarithm of the increase in PVC/hr and PVC couplets/hr of 60% and 60%, P 0.002 and 0.009, vs. 26% and 17%, P = 0.098 and 0.332, respectively): the initial plasma-dialysate K gradient was 2.3 times lower during treatment B than during treatment A, without adversely affecting pre-HD plasma K levels. These results could have a considerably clinical impact not only because of the possibility of physiologically decreasing the arrhythmogenic effect of HD, but also because this effect can be considered a "marker" of the electrophysiological derangement induced by the administration of standard HD three times a week for years ("electric disequilibrium syndrome").
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Affiliation(s)
- B Redaelli
- Division of Nephrology and Dialysis, Hospital S. Gerardo, Milan, Italy
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Ciró A, Vincenti A, Bozzano A, Trocino G, Valagussa F. Cardiac involvement by non-Hodgkin's lymphoma: an unusual presentation of heart conduction disturbances. Pacing Clin Electrophysiol 1994; 17:1561-4. [PMID: 7991429 DOI: 10.1111/j.1540-8159.1994.tb01523.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A 57-year-old man with non-Hodgkin's lymphoma presented with solitary sinus node dysfunction. Superior vena cava syndrome and progressive disturbance of the conduction system requiring dual chamber pacemaker implantation later appeared. Combination chemotherapy and radiation reversed abnormal sinus node function and the AV conduction disturbance, as demonstrated during electrophysiological evaluation.
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Affiliation(s)
- A Ciró
- Divisione di Cardiologia, Ospedale S. Gerardo, Monza, Italy
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Abstract
An analysis of the epidemiology of non-parasitic hepatic cysts (NPHCs) has been carried out comparing these data with those of the current literature. This sample shows an incidence of 4.65%, which is greater than those reported by other authors. No difference between the two sexes was seen, but a very high incidence above 40 years of age was found.
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Affiliation(s)
- M Caremani
- Operative Unit of Infectious Diseases, Santa Maria Sopra i Ponti Hospital, Arezzo, Italy
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Sforzini S, Latini R, Mingardi G, Vincenti A, Redaelli B. Ventricular arrhythmias and four-year mortality in haemodialysis patients. Gruppo Emodialisi e Patologie Cardiovascolari. Lancet 1992; 339:212-3. [PMID: 1346174 DOI: 10.1016/0140-6736(92)90008-q] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
127 randomly selected patients on haemodialysis showed a high prevalence of ventricular arrhythmias, the frequency of which rose significantly during and after dialysis. These patients have now been followed up for 4 years. Only age and ischaemic heart disease correlated independently with mortality. Although ventricular arrhythmias are often associated with cardiac disease in patients on chronic haemodialysis, they do not seem to predict overall mortality.
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Affiliation(s)
- S Sforzini
- Renal and Dialysis Division, Ospedale San Gerardo, Monza, Italy
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Shepherd HA, Laidlow JM, Ross AP, Vincenti A, Lane RH. Extrahepatic biliary obstruction by a common bile duct inflammatory polyp in association with a gallstone, and treatment by endoscopic sphincterotomy. Endoscopy 1986; 18:66-8. [PMID: 3956441 DOI: 10.1055/s-2007-1018331] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
After a two-year history of recurrent abdominal pain, an 84-year-old man presented with acute pancreatitis and obstructive jaundice. An endoscopic retrograde cholangiogram demonstrated two filling defects approximately 1.0 cm in diameter, in a dilated common bile duct. Endoscopic papillotomy was performed which resulted in a polypoid tumour delivering itself into the wound followed by a free flow of bile. In addition, a single 1.0 cm gallstone was removed from the common bile duct, above the tumour, using a Dormia basket. The patient recovered completely. Histological examination of biopsies of the tumour taken on three subsequent occasions showed it to consist only of inflammatory tissue (an inflammatory polyp) and later, regenerating bile duct mucosa. After six months this tumour had completely regressed.
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Leone G, Boni P, Vincenti A. Platelet aggregation by thimerosal: role of ADP and SH groups. Thromb Haemost 1976; 35:249-57. [PMID: 989191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Thimerosal, a sulphydryl inhibitor, induces aggregation of normal platelet rich plasma over a wide range of concentrations. Low doses induce a monophasic response preceded by a lag phase, high doses produce an immediate biphasic response. Thimerosal induces platelet aggregation through its binding by sulphydryl groups. Thimerosal induced aggregation is not mediated by ADP, it is not influenced by fibrinogen, von Willebrand factor, calcium, and magnesium ions of the medium. Thimerosal induced platelet aggregation is normal in patients affected by thrombocytopathia (defect of ADP release) but not in patients affected by Glanzmann's thrombasthenia. Mercaptopropionglycine, a substance which tends to preserve SH groups, inhibits platelet aggregation induced by thimerosal, thrombin, collagen, and ADP. A mechanism is proposed for thimerosal induced aggregation and the role of SH groups also in ADP, thrombin and collagen induced aggregation is indicated.
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Abstract
A method for the differential determination of plasma antithrombins, antithrombin III and alpha2 macroglobulin, is described. The method is based on the selective inactivation of plasma alpha2 macroglobulin by treatment with 0-1 M methylamine for 10 minutes at 37 degrees C and on the observation that antithrombin III and alpha2 macroglobulin inhibited in defibrinated plasma low concentrations of thrombin without mutual interference and according to pseudo-first order reaction. In healthy subjects antithrombin III was shown to account for about 70% of the total antithrombin activity. But in patients with liver cirrhosis, where low levels of total antithrombin activity were observed, the relative contribution of antithrombin III was found to be noticeably lower.
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