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D'Elia L, Masulli M, Iacone R, Russo O, Strazzullo P, Galletti F. Relationship between leptin and white blood cells: a potential role in infection susceptibility and severity-the Olivetti Heart Study. Intern Emerg Med 2023; 18:1429-1436. [PMID: 37217748 PMCID: PMC10202358 DOI: 10.1007/s11739-023-03313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
A number of evidence showed an emerging role of leptin on immune system, involving inflammation, and innate and adaptive immunity. Few observational studies have evaluated the relationship between leptin and immunity, albeit with low statistical power and methodological differences. Therefore, the aim of this study was to evaluate the potential role of leptin on the immunity, expressed as white blood cells (WBC)-and its subpopulations, by comprehensive multivariate models in a sample of adult men. A cross-sectional evaluation of a general population comprised 939 subjects participating in the Olivetti Heart Study, with available leptin levels and WBC-and its subpopulations. WBC were significantly and positively associated with leptin, C-reactive protein and HOMA index (p < 0.05), but not with age and anthropometric indices (p > 0.05). The multivariate analysis confirmed the association between leptin and WBC, after accounting for main confounders (p < 0.05). Additional analysis on WBC subpopulations showed a positive and significant correlation between leptin and lymphocytes, monocytes and eosinophils (p < 0.05), but not with neutrophils and basophils (p > 0.05). After stratification by body weight, the positive and significant association between leptin and WBC-and its subpopulations-was found in excess body weight participants. The results of this study indicate a direct relationship between leptin levels and WBC-and its subpopulations-in excess body weight participants. These results support the hypothesis that leptin has modulatory functions on immunity and role in the pathophysiology of immune-related diseases, in particular in those associated with excess body weight.
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Affiliation(s)
- Lanfranco D'Elia
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
| | - Maria Masulli
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Roberto Iacone
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Ornella Russo
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Pasquale Strazzullo
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - Ferruccio Galletti
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
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Ali S, Alam R, Ahsan H, Khan S. Role of adipokines (omentin and visfatin) in coronary artery disease. Nutr Metab Cardiovasc Dis 2023; 33:483-493. [PMID: 36653284 DOI: 10.1016/j.numecd.2022.11.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
AIMS Adipose tissue is considered as an endocrine organ that releases bioactive factors known as adipokines which contribute to the pathogenesis of rotundity-linked metabolic and cardiovascular complications. Rotundity is a major predisposer for the development and progression of coronary artery disease (CAD). DATA SYNTHESIS The literature survey from various databases such as Pubmed/Medline, DOAJ, Scopus, Clarivate analytics/Web of Science and Google Scholar were used to prepare this article. The epidemic of rotundity has gained significant attention to understand the biology of adipocytes and the metabolism of adipose tissue in obese individuals. In CAD, visfatin/NAMPT was primarily indicated as a clinical marker of atherosclerosis, endothelial dysfunction and vascular injury having a prognostic significance. Visfatin/NAMPT is a factor that promotes vascular inflammation and atherosclerosis. Omentin is an anti-inflammatory and anti-atherogenic adipokine regulating cardiovascular functions. CONCLUSIONS This review highlights and summarizes the scientific information pertaining to the role of the adipokines - omentin and visfatin in CAD.
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Affiliation(s)
- Saif Ali
- Department of Biochemistry, Integral Institute of Medical Sciences and Research, Integral University, Lucknow, India
| | - Roshan Alam
- Department of Biochemistry, Integral Institute of Medical Sciences and Research, Integral University, Lucknow, India
| | - Haseeb Ahsan
- Department of Biochemistry, Faculty of Dentistry, Jamia Millia Islamia, Jamia Nagar, New Delhi, India
| | - Saba Khan
- Department of Biochemistry, Integral Institute of Medical Sciences and Research, Integral University, Lucknow, India.
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Abi N, Xu X, Yang Z, Ma T, Dong J. Association of Serum Adipokines and Resting Energy Expenditure in Patients With Chronic Kidney Disease. Front Nutr 2022; 9:828341. [PMID: 35369060 PMCID: PMC8965443 DOI: 10.3389/fnut.2022.828341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/15/2022] [Indexed: 12/04/2022] Open
Abstract
Background and Aim Metabolic disorders are prevalent in patients with chronic kidney disease (CKD) and may lead to protein energy wasting (PEW). Adipokines improve connections between PEW and energy metabolism. We aimed to determine the relationship between adipokine levels and resting energy expenditure (REE) in patients with CKD. Methods A total of 208 patients in non-dialyzed CKD stages 3–5 were enrolled in this cross-sectional study. Serum adipokines (leptin, adiponectin, and interleukin 6 (IL-6) were measured using enzyme-linked immunosorbent assay. Patient's REE was measured using indirect calorimetry. Fat mass (FM) and lean tissue mass (LTM) were measured using multiple-frequency bioimpedance analysis. Spearman correlation analyses and multivariate linear regression models were used to assess the association between serum adipokines and REE. Results The mean age was 52.7 ± 14.6 years, and 26.9, 26.4, and 46.7% of our participants had CKD stages 3, 4, and 5, respectively. The median values of serum adiponectin, leptin, and IL-6 were 470.4 (range, 291.1–802.2), 238.1 (range, 187.9–418.4), and 4.0 (range, 2.4–9.5) pg/mL, respectively. The male participants had significantly lower FM% (P = 0.001) and lower leptin levels (P < 0.001) than the female participants. After adjusting for age, diabetes, high-sensitivity C-reactive protein, intact parathyroid hormone, LTM, and FM, multiple linear regression analysis revealed that serum leptin levels were significantly positively associated with REE in men rather than in women (P < 0.05). Serum adiponectin levels were inversely associated with REE in men, but this association disappeared while FM was additionally adjusted. Adiponectin levels in women were not correlated with REE (P > 0.05). IL-6 was not significantly associated with REE in either men or women. Conclusions A sex-specific relationship between serum adipokines (leptin and adiponectin) and REE was observed in patients with CKD stages 3–5, which was partly confounded by FM.
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Affiliation(s)
- Nanzha Abi
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao Xu
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhikai Yang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Tiantian Ma
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Jie Dong
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Jie Dong
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The Causes and Potential Injurious Effects of Elevated Serum Leptin Levels in Chronic Kidney Disease Patients. Int J Mol Sci 2021; 22:ijms22094685. [PMID: 33925217 PMCID: PMC8125133 DOI: 10.3390/ijms22094685] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 12/15/2022] Open
Abstract
Leptin is an adipokine that regulates appetite and body mass and has many other pleiotropic functions, including regulating kidney function. Increased evidence shows that chronic kidney disease (CKD) is associated with hyperleptinemia, but the reasons for this phenomenon are not fully understood. In this review, we focused on potential causes of hyperleptinemia in patients with CKD and the effects of elevated serum leptin levels on patient kidney function and cardiovascular risk. The available data indicate that the increased concentration of leptin in the blood of CKD patients may result from both decreased leptin elimination from the circulation by the kidneys (due to renal dysfunction) and increased leptin production by the adipose tissue. The overproduction of leptin by the adipose tissue could result from: (a) hyperinsulinemia; (b) chronic inflammation; and (c) significant lipid disturbances in CKD patients. Elevated leptin in CKD patients may further deteriorate kidney function and lead to increased cardiovascular risk.
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Serum leptin is associated with increased pulse pressure and the development of arterial stiffening in adult men: results of an eight-year follow-up study. Hypertens Res 2021; 44:1444-1450. [PMID: 34385686 PMCID: PMC8568692 DOI: 10.1038/s41440-021-00718-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 06/16/2021] [Accepted: 07/03/2021] [Indexed: 02/07/2023]
Abstract
High leptin levels are associated with an unfavorable cardiometabolic risk profile. A number of studies found a positive association between leptin and vascular damage, but to date, no observational study has evaluated a potential predictive role of leptin for arterial stiffening. Therefore, the aim of this study was to estimate the role of leptin in the incidence of arterial stiffening (pulse pressure >60 mmHg) and changes in pulse pressure in an 8-year follow-up of a sample of adult men (The Olivetti Heart Study). The analysis included 460 men without baseline arterial stiffening and antihypertensive treatment at baseline and at follow-up (age: 50.0 years, BMI: 26.5 kg/m2). At the end of the follow-up period, the incidence of arterial stiffening was 8%. Baseline leptin was significantly greater in the group that developed arterial stiffening and was significantly correlated with pulse pressure changes over time (p < 0.05). According to the median plasma leptin distribution of the whole population, the sample was stratified into two groups: one with leptin levels above the median and the other with leptin levels below the median. Those who had baseline leptin levels above the median had a greater risk of developing arterial stiffening (odds ratio: 2.5, p < 0.05) and a greater increase in pulse pressure over time (beta: 2.1, p < 0.05), also after adjustment for confounders. The results of this prospective study indicate a predictive role of circulating leptin levels for vascular damage, independent of body weight and blood pressure.
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Leptin levels predict the development of left ventricular hypertrophy in a sample of adult men: the Olivetti Heart Study. J Hypertens 2020; 39:692-697. [PMID: 33060451 DOI: 10.1097/hjh.0000000000002687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE A higher leptin (LPT) is associated with a greater cardiometabolic risk. Some studies also showed a positive association between LPT and cardiovascular organ damage but no consistent data are available about a predictive role of LPT on cardiac remodelling. Hence, the aim of this study was to evaluate the potential role of LPT on the incidence of left ventricular hypertrophy (LVH) in a sample of adult men. METHODS The study population was made up of 439 individuals (age: 51 years) without LVH at baseline, participating in The Olivetti Heart Study. The ECG criteria were adopted to exclude LVH at baseline and echocardiogram criteria for diagnosis of LVH at follow-up were considered. RESULTS At baseline, LPT was significantly and positively correlated with BMI, waist circumference, ECG indices, SBP and DBP but not with age and renal function. At the end of the 8-year follow-up period, there was an incidence of 23% in LVH by echocardiography. Individuals who developed LVH had higher baseline age, LPT, BMI, waist circumference, blood pressure and ECG indices (P < 0.05). Furthermore, those that had LPT above the median had greater risk to develop LVH (odds ratio: 1.7; P < 0.05). This association was also confirmed after adjustment for main confounders, among which changes in blood pressure and anthropometric indices. CONCLUSION The results of this study suggest a predictive role of circulating LPT levels on cardiac remodelling expressed by echocardiographic LVH, independently of body weight and blood pressure changes over the years.
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Mota-Zamorano S, Luna E, Garcia-Pino G, González LM, Gervasini G. Combined donor-recipient genotypes of leptin receptor and adiponectin gene polymorphisms affect the incidence of complications after renal transplantation. Mol Genet Metab Rep 2020; 25:100648. [PMID: 32983895 PMCID: PMC7498839 DOI: 10.1016/j.ymgmr.2020.100648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 02/06/2023] Open
Abstract
Background We aimed to examine whether combined donor/recipient variants in the leptin receptor (LEPR) and adiponectin (ADIPOQ) genes may affect outcomes in renal transplantation. Methods A total of 233 donors and their corresponding 307 recipients were genotyped for LEPR rs1805094, rs1137100 and rs1137101, and ADIPOQ rs1501299 and rs224176. Combined donor/recipient genetic scores were created to investigate associations with delayed graft function (DGF), graft loss and estimated glomerular filtration rate (eGFR). Results Recipients whose donors carried variant alleles of LEPR rs1137100 and rs1137101 had lower risk of DGF [OR = 0.48 (0.24–0.97), p = 0.040] and [OR = 0.47 (0.23–0.95), p = 0.035], respectively. In addition, rs1137101 also showed an inverse association with lower incidence of graft loss [OR = 0.44 (0.31–0.97), p = 0.040]. The analysis of genetic scores of donor/recipients showed that again rs1137101 was inversely associated with both outcomes: OR = 0.46 (0.23–0.92), p = 0.029 and OR = 0.45 (0.11–0.81), p = 0.009, respectively. With regard to graft function, the T-allele of ADIPOQ rs1501299 in the donor was related to higher eGFR values (75.26 ± 29.01 vs. 67.34 ± 25.39 ml/min for wild-type grafts, p = 0.012). Higher combined genetic scores in this same polymorphism were also associated with better function (78.33 ± 31.87 vs. 68.25 ± 24.32 ml/min, p = 0.018). Finally, eGFR values were similar between paired kidneys but they were different when comparing grafts with or without the rs1501299 T-variant (77.87 ± 26.50 vs. 69.27 ± 26.73 ml/min, p = 0.016). Conclusions Our study has shown for the first time to our knowledge that variants in LEPR and ADIPOQ genes of the donors and/or their combination with those in the recipients may affect the outcome of renal transplantation.
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Affiliation(s)
- Sonia Mota-Zamorano
- Department of Medical and Surgical Therapeutics, Division of Pharmacology, Medical School, University of Extremadura, Badajoz, Spain
| | - Enrique Luna
- Service of Nephrology, Badajoz University Hospital, Badajoz, Spain
| | | | - Luz M. González
- Department of Medical and Surgical Therapeutics, Division of Pharmacology, Medical School, University of Extremadura, Badajoz, Spain
| | - Guillermo Gervasini
- Department of Medical and Surgical Therapeutics, Division of Pharmacology, Medical School, University of Extremadura, Badajoz, Spain
- Corresponding author at: Department of Medical and Surgical Therapeutics, Division of Pharmacology, Medical School, University of Extremadura, Av. Elvas s/n 06071, Badajoz, Spain.
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Pazos F. Range of adiposity and cardiorenal syndrome. World J Diabetes 2020; 11:322-350. [PMID: 32864046 PMCID: PMC7438185 DOI: 10.4239/wjd.v11.i8.322] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/27/2020] [Accepted: 06/14/2020] [Indexed: 02/05/2023] Open
Abstract
Obesity and obesity-related co-morbidities, diabetes mellitus, and hypertension are among the fastest-growing risk factors of heart failure and kidney disease worldwide. Obesity, which is not a unitary concept, or a static process, ranges from alterations in distribution to the amount of adiposity. Visceral adiposity, which includes intraabdominal visceral fat mass and ectopic fat deposition such as hepatic, cardiac, or renal, was robustly associated with a greater risk for cardiorenal morbidity than subcutaneous adiposity. In addition, morbid obesity has also demonstrated a negative effect on cardiac and renal functioning. The mechanisms by which adipose tissue is linked with the cardiorenal syndrome (CRS) are hemodynamic and mechanical changes, as well neurohumoral pathways such as insulin resistance, endothelial dysfunction, nitric oxide bioavailability, renin-angiotensin-aldosterone, oxidative stress, sympathetic nervous systems, natriuretic peptides, adipokines and inflammation. Adiposity and other associated co-morbidities induce adverse cardiac remodeling and interstitial fibrosis. Heart failure with preserved ejection fraction has been associated with obesity-related functional and structural abnormalities. Obesity might also impair kidney function through hyperfiltration, increased glomerular capillary wall tension, and podocyte dysfunction, which leads to tubulointerstitial fibrosis and loss of nephrons and, finally, chronic kidney disease. The development of new treatments with renal and cardiac effects in the context of type 2 diabetes, which improves mortality outcome, has highlighted the importance of CRS and its prevalence. Increased body fat triggers cellular, neuro-humoral and metabolic pathways, which create a phenotype of the CRS with specific cellular and biochemical biomarkers. Obesity has become a single cardiorenal umbrella or type of cardiorenal metabolic syndrome. This review article provides a clinical overview of the available data on the relationship between a range of adiposity and CRS, the support for obesity as a single cardiorenal umbrella, and the most relevant studies on the recent therapeutic approaches.
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Affiliation(s)
- Fernando Pazos
- Department of Medicine, Medicine Faculty, Cantabria University, Valdecilla Hospital, Santander 39080, Cantabria, Spain
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D’Elia L, Giaquinto A, De Luca F, Strazzullo P, Galletti F. Relationship between circulating leptin levels and arterial stiffness: a systematic review and meta-analysis of observational studies. High Blood Press Cardiovasc Prev 2020; 27:505-513. [DOI: 10.1007/s40292-020-00404-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/28/2020] [Indexed: 12/19/2022] Open
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Demarchi A, Mazzucchelli I, Somaschini A, Cornara S, Dusi V, Mirizzi AM, Ruffinazzi M, Crimi G, Ferlini M, Gnecchi M, Visconti LO, De Servi S, De Ferrari GM. Leptin affects the inflammatory response after STEMI. Nutr Metab Cardiovasc Dis 2020; 30:922-924. [PMID: 32249141 DOI: 10.1016/j.numecd.2020.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/07/2020] [Accepted: 02/11/2020] [Indexed: 01/08/2023]
Abstract
Leptin is an adipose tissue-derived hormone primarily involved in the regulation of food intake. Leptine has been shown to have a much broader role than just regulating body weight and appetite in response to food intake: among the others, it has been associated with increased ROS production and inflammation, factors involved in the restoration of an effective myocardial reperfusion after myocardial revascularization. Our study, to our best knowledge, is the first showing a direct relationship between leptin serum levels, inflammatory mediators of the ischemia reperfusion damage and effective myocardial reperfusion in patients with ST elevation myocardial infarction undergoing primary percutaneous coronary intervention. Our findings suggest that leptin serum levels are directly associated with the inflammatory response during an acute myocardial infarction and may have a role in risk stratification in this clinical setting.
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Affiliation(s)
- Andrea Demarchi
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Iolanda Mazzucchelli
- Department of Internal Medicine and Therapeutics, Università degli studi di Pavia, Pavia, Italy
| | - Alberto Somaschini
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Stefano Cornara
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Veronica Dusi
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Alessandro Mandurino Mirizzi
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Marta Ruffinazzi
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gabriele Crimi
- Interventional Cardiology Unit, Cardio Thoraco Vascular Department (DICATOV), Genova, Italy
| | - Marco Ferlini
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Massimiliano Gnecchi
- Department of Molecular Medicine, Unit of Cardiology, Università degli studi di Pavia, Pavia, Italy; Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Department of Medicine, University of Cape Town, Cape Town, South Africa
| | | | | | - Gaetano M De Ferrari
- Division of Cardiology, Ospedale "Città della Salute e della Scienza di Torino", Department of Medical Sciences, Università di Torino, Italy
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D'Elia L, Giaquinto A, Cappuccio FP, Iacone R, Russo O, Strazzullo P, Galletti F. Circulating leptin is associated with serum uric acid level and its tubular reabsorption in a sample of adult middle-aged men. J Endocrinol Invest 2020; 43:587-593. [PMID: 31691260 DOI: 10.1007/s40618-019-01140-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE Leptin is associated with cardiovascular risk factors (e.g. hypertension, insulin resistance, kidney disease and excess body weight). Experimental studies showed that leptin might affect serum uric acid, by modulation of the uric acid excretion. However, there are few observational data on the relationship between leptin and uric acid in the general population. Therefore, the aim of the present study was to evaluate the relationship between leptin and uric acid and its excretion in a large middle-aged male general population. METHODS A sample of 930 adult male individuals (mean age: 52 years) without therapy for high uric acid was included in the analysis (the Olivetti Heart Study). RESULTS Uric acid was significantly and positively associated with blood pressure, BMI, waist circumference, insulin resistance, C-reactive protein and leptin (p < 0.01), while inversely with renal function (p = 0.01). The multivariate analysis confirmed the association between leptin and uric acid after adjustment for potential confounders (p < 0.01). After division for adiposity, this trend was confirmed separately for normal weight and excess body weight participants. Moreover, leptin was inversely associated with excretion of uric acid (p < 0.01), also in multivariate analysis (p = 0.03). CONCLUSION The results of this study indicate a positive association between circulating leptin levels and uric acid, independently of potential confounders, both in normal and excess body weight men. Furthermore, an inverse association between leptin and uric acid excretion was detected.
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Affiliation(s)
- L D'Elia
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
| | - A Giaquinto
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - F P Cappuccio
- World Health Organization Collaborating Centre for Nutrition, University of Warwick, Coventry, CV4 7AL, UK
- Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - R Iacone
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - O Russo
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - P Strazzullo
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy
| | - F Galletti
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5, 80131, Naples, Italy.
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Nakajima H, Hashimoto Y, Okamura T, Obora A, Kojima T, Hamaguchi M, Fukui M. Association between Sleep Duration and Incident Chronic Kidney Disease: A Population-Based Cohort Analysis of the NAGALA Study. Kidney Blood Press Res 2020; 45:339-349. [PMID: 32131067 DOI: 10.1159/000504545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/01/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The duration of sleep might be a risk factor for chronic kidney disease (CKD). We investigated the relationship between sleep duration and incident CKD. METHODS In this retrospective cohort study of 7,752 men and 6,722 women, we divided the subjects into 4 groups according to sleep duration, i.e., those whose reported regular sleep duration was <6 h (the "<6 h group"), those whose sleep duration was >6 but <7 h (the "6 to <7 h group"), those with a sleep duration of 7 to <8 h (the "7 to <8 h group"), and those with ≥8 h sleep (the "≥8 h group"). CKD was defined as the presence of proteinuria and/or an estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2. The HR of the 4 groups for incident CKD were calculated with a Cox proportional hazards model, with the 7 to <8 h group set as the reference. RESULTS Incident CKD was detected in 1,513 (19.5%) men and 688 (10.2%) women over the median follow-up period of 7.0 (3.3-11.9) years in the men and 6.7 (3.1-10.8) years in the women. There was no association between sleep duration and incident CKD in the women. In the men, the HR of incident CKD was 0.54 (95% CI 0.45-0.64, p < 0.001) in the <6 h group, 0.73 (95% CI 0.66-0.82, p < 0.001) in the 6 to <7 h group, and 0.93 (95% CI 0.78-1.11, p = 0.433) in the ≥8 h group. CONCLUSION The risk of incident CKD is lowest in those who sleep <6 h. We revealed that the risk of incident CKD is lowest in those who sleep <6 h among apparently healthy men.
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Affiliation(s)
- Hanako Nakajima
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshitaka Hashimoto
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takuro Okamura
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akihiro Obora
- Department of Gastroenterology, Asahi University Hospital, Gifu, Japan
| | - Takao Kojima
- Department of Gastroenterology, Asahi University Hospital, Gifu, Japan
| | - Masahide Hamaguchi
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan,
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Affiliation(s)
- Sebastio Perrini
- Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, General Surgery and Liver Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Piazza Giulio Cesare, 11, 70124, Bari, Italy.
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D'Elia L, Strazzullo P, Iacone R, Russo O, Galletti F. Leptin levels predict the development of insulin resistance in a sample of adult men-The Olivetti Heart Study. Nutr Metab Cardiovasc Dis 2019; 29:39-44. [PMID: 30527422 DOI: 10.1016/j.numecd.2018.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS Leptin (LPT) is associated with unfavourable cardio-metabolic risk profile. Although a number of studies have found a positive association between LPT and insulin resistance (IR), no observational study has evaluated a prospective association to detect a predictive role of LPT in IR. Therefore, the aim of this study was to estimate the role of LPT on the incidence of IR in an 8-year follow-up of a sample of adult men (The Olivetti Heart Study). METHODS AND RESULTS The study included 527 not diabetic men without IR (homeostasis model assessment - HOMA index < 2.77 UI) at baseline. Baseline LPT was significantly and positively associated with HOMA index, body mass index (BMI), waist circumference and blood pressure. At the end of the 8-year follow-up period, a positive and significant association was detected between baseline LPT and changes in HOMA index (r = 0.25, p < 0.01) and incidence of IR (OR: 2.6, 95%CI: 1.9-3.4). This trend was also confirmed after adjustment for potential confounders. In addition, the predictive value of LPT was found in subjects who had not experienced any weight increase over the years, and for normal weight and excess body weight participants, separately. CONCLUSIONS The results of this prospective study suggest a predictive role of circulating LPT levels on a reduction of insulin sensitivity over time, independently of main potential confounders, in non-diabetic men without IR at baseline. In addition, in normal weight individuals, LPT levels were associated with development of IR.
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Affiliation(s)
- L D'Elia
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Naples, Italy
| | - P Strazzullo
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Naples, Italy
| | - R Iacone
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Naples, Italy
| | - O Russo
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Naples, Italy
| | - F Galletti
- Department of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, "Federico II" University of Naples Medical School, Naples, Italy.
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