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Mondal S, Rathor R, Singh SN, Suryakumar G. miRNA and leptin signaling in metabolic diseases and at extreme environments. Pharmacol Res Perspect 2024; 12:e1248. [PMID: 39017237 PMCID: PMC11253706 DOI: 10.1002/prp2.1248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 05/27/2024] [Accepted: 07/04/2024] [Indexed: 07/18/2024] Open
Abstract
The burden of growing concern about the dysregulation of metabolic processes arises due to complex interplay between environment and nutrition that has great impact on genetics and epigenetics of an individual. Thereby, any abnormality at the level of food intake regulating hormones may contribute to the development of metabolic diseases in any age group due to malnutrition, overweight, changing lifestyle, and exposure to extreme environments such as heat stress (HS), cold stress, or high altitude (HA). Hormones such as leptin, adiponectin, ghrelin, and cholecystokinin regulate appetite and satiety to maintain energy homeostasis. Leptin, an adipokine and a pleiotropic hormone, play major role in regulating the food intake, energy gain and energy expenditure. Using in silico approach, we have identified the major genes (LEP, LEPR, JAK2, STAT3, NPY, POMC, IRS1, SOCS3) that play crucial role in leptin signaling pathway. Further, eight miRNAs (hsa-miR-204-5p, hsa-miR-211-5p, hsa-miR-30, hsa-miR-3163, hsa-miR-33a-3p, hsa-miR-548, hsa-miR-561-3p, hsa-miR-7856-5p) from TargetScan 8.0 database were screened out that commonly target these genes. The role of these miRNAs should be explored as they might play vital role in regulating the appetite, energy metabolism, metabolic diseases (obesity, type 2 diabetes, cardiovascular diseases, inflammation), and to combat extreme environments. The miRNAs regulating leptin signaling and appetite may be useful for developing novel therapeutics for metabolic diseases.
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Affiliation(s)
- Samrita Mondal
- Defence Institute of Physiology and Allied SciencesDelhiIndia
| | - Richa Rathor
- Defence Institute of Physiology and Allied SciencesDelhiIndia
| | - Som Nath Singh
- Defence Institute of Physiology and Allied SciencesDelhiIndia
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2
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Dare A, Chen SY. Adipsin in the pathogenesis of cardiovascular diseases. Vascul Pharmacol 2024; 154:107270. [PMID: 38114042 PMCID: PMC10939892 DOI: 10.1016/j.vph.2023.107270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
Adipsin is an adipokine predominantly synthesized in adipose tissues and released into circulation. It is also known as complement factor-D (CFD), acting as the rate-limiting factor in the alternative complement pathway and exerting essential functions on the activation of complement system. The deficiency of CFD in humans is a very rare condition. However, complement overactivation has been implicated in the etiology of numerous disorders, including cardiovascular disease (CVD). Increased circulating level of adipsin has been reported to promote vascular derangements, systemic inflammation, and endothelial dysfunction. Prospective and case-control studies showed that this adipokine is directly associated with all-cause death and rehospitalization in patients with coronary artery disease. Adipsin has also been implicated in pulmonary arterial hypertension, abdominal aortic aneurysm, pre-eclampsia, and type-2 diabetes which is a major risk factor for CVD. Importantly, serum adipsin has been recognized as a unique prognostic marker for assessing cardiovascular diseases. At present, there is paucity of experimental evidence about the precise role of adipsin in the etiology of CVD. However, this mini review provides some insight on the contribution of adipsin in the pathogenesis of CVD and highlights its role on endothelial, smooth muscle and immune cells that mediate cardiovascular functions.
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Affiliation(s)
- Ayobami Dare
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA
| | - Shi-You Chen
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA; The Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA.
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Vilariño-García T, Polonio-González ML, Pérez-Pérez A, Ribalta J, Arrieta F, Aguilar M, Obaya JC, Gimeno-Orna JA, Iglesias P, Navarro J, Durán S, Pedro-Botet J, Sánchez-Margalet V. Role of Leptin in Obesity, Cardiovascular Disease, and Type 2 Diabetes. Int J Mol Sci 2024; 25:2338. [PMID: 38397015 PMCID: PMC10888594 DOI: 10.3390/ijms25042338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Diabetes mellitus (DM) is a highly prevalent disease worldwide, estimated to affect 1 in every 11 adults; among them, 90-95% of cases are type 2 diabetes mellitus. This is partly attributed to the surge in the prevalence of obesity, which has reached epidemic proportions since 2008. In these patients, cardiovascular (CV) risk stands as the primary cause of morbidity and mortality, placing a substantial burden on healthcare systems due to the potential for macrovascular and microvascular complications. In this context, leptin, an adipocyte-derived hormone, plays a fundamental role. This hormone is essential for regulating the cellular metabolism and energy balance, controlling inflammatory responses, and maintaining CV system homeostasis. Thus, leptin resistance not only contributes to weight gain but may also lead to increased cardiac inflammation, greater fibrosis, hypertension, and impairment of the cardiac metabolism. Understanding the relationship between leptin resistance and CV risk in obese individuals with type 2 DM (T2DM) could improve the management and prevention of this complication. Therefore, in this narrative review, we will discuss the evidence linking leptin with the presence, severity, and/or prognosis of obesity and T2DM regarding CV disease, aiming to shed light on the potential implications for better management and preventive strategies.
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Affiliation(s)
- Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen del Rocio University Hospital, University of Seville, Seville 41013, Spain;
| | - María L. Polonio-González
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, University Rovira i Vigili, IISPV, CIBERDEM, 43007 Tarragona, Spain;
| | - Francisco Arrieta
- Endocrinology and Nutrition Service, Ramón y Cajal University Hospital, 28034 Madrid, Spain;
| | - Manuel Aguilar
- Endocrinology and Nutrition Service, Puerta del Mar University Hospital, Instituto de Investigación e Innovación en Ciencias Biomédicas de la Provincia de Cádiz (INiBICA), Cádiz University (UCA), 11001 Cádiz, Spain;
| | - Juan C. Obaya
- Chopera Helath Center, Alcobendas Primary Care,Alcobendas 28100 Madrid, Spain;
| | - José A. Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clinico Universitario Lozano Blesa, 15 50009 Zaragoza, Spain;
| | - Pedro Iglesias
- Endocrinology and Nutrition Service, Puerta de Hierro University Hospital, Majadahonda, 28220 Madrid, Spain;
| | - Jorge Navarro
- Hospital Clínico Universitario de Valencia,46011 Valencia, Spain;
| | - Santiago Durán
- Endodiabesidad Clínica Durán & Asociados,41018 Seville, Spain;
| | - Juan Pedro-Botet
- Lipids and Cardiovascular Risk Unit, Hospital del Mar, Autonomous University of Barcelona, 08003 Barcelona, Spain;
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
- Institute of Biomedicine of Seville (IBIS), Hospital Universitario Virgen del Rocío/Virgen Macarena, CSIC, Universidad de Sevilla, 41013 Seville, Spain
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Broberg O, Feldreich T, Weismann CG, Øra I, Wiebe T, Ärnlöv J, Liuba P. Circulating leptin is associated with adverse vascular changes in young adult survivors of childhood cancer. Cardiol Young 2024:1-9. [PMID: 38305049 DOI: 10.1017/s1047951124000076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
INTRODUCTION Proteomics may help discover novel biomarkers and underlying mechanisms for cardiovascular disease. This could be useful for childhood cancer survivors as they show an increased risk of cardiovascular disease. The aim of this study was to investigate circulating cardiovascular proteins in young adult survivors of childhood cancer and their relationship to previously reported subclinical cardiovascular disease. METHODS Ninety-two cardiovascular proteins were measured in 57 childhood cancer survivors and in 52 controls. For proteins that were significantly different between childhood cancer survivors and controls, we performed correlations between protein levels and measures of peripheral arterial stiffness (carotid distensibility and stiffness index, and augmentation index) and endothelial dysfunction (reactive hyperemia index). RESULTS Leptin was significantly higher in childhood cancer survivors compared to controls (normalized protein expression units: childhood cancer survivors 6.4 (1.5) versus 5.1 (1.7), p < 0.0000001) after taking multiple tests into account. Kidney injury molecule-1, MER proto-oncogene tyrosine kinase, selectin P ligand, decorin, alpha-1-microglobulin/bikunin precursor protein, and pentraxin 3 showed a trend towards group differences (p < 0.05). Among childhood cancer survivors, leptin was associated with anthracycline treatment after adjustment for age, sex, and body mass index (p < 0.0001). Higher leptin correlated with lower carotid distensibility after adjustment for age, sex, body mass index, and treatments with radiotherapy and anthracyclines (p = 0.005). CONCLUSION This proteomics approach identified that leptin is higher in young asymptomatic adult survivors of childhood cancer than in healthy controls and is associated with adverse vascular changes. This could indicate a role for leptin in driving the cardiovascular disease burden in this population.
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Affiliation(s)
- Olof Broberg
- Department of Pediatric Cardiology, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
| | | | - Constance G Weismann
- Department of Pediatric Cardiology, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
- Department of Pediatric Cardiology and Pediatric Intensive Care, Ludwig-Maximilian University, Munich, DE, Germany
| | - Ingrid Øra
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
- Department of Pediatric Oncology, Skåne University Hospital, Lund, Sweden
| | - Thomas Wiebe
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
- Department of Pediatric Oncology, Skåne University Hospital, Lund, Sweden
| | - Johan Ärnlöv
- School of Health and Welfare Dalarna University, Falun, Sweden
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institute, Huddinge, Sweden
| | - Petru Liuba
- Department of Pediatric Cardiology, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Pediatrics, Lund University, Lund, Sweden
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van Niekerk E, Botha-Le Roux S, Mels CMC, Swanepoel M, Delles C, Welsh P, Kruger R. Twenty-four-hour ambulatory, but not clinic blood pressure associates with leptin in young adults with overweight or obesity: The African-PREDICT study. Hypertens Res 2024; 47:478-486. [PMID: 37872379 PMCID: PMC10838765 DOI: 10.1038/s41440-023-01477-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/11/2023] [Accepted: 10/02/2023] [Indexed: 10/25/2023]
Abstract
Hypertension and obesity are known pro-inflammatory conditions, and limited studies explored various blood pressure modalities and inflammatory markers in young adults with overweight or obesity (OW/OB). We assessed the relationship of clinic and 24 h ambulatory blood pressure with an array of inflammatory markers in young adults with OW/OB. This cross-sectional study included women and men of Black and White ethnicity (n = 1194) with a median age of 24.5 ± 3.12 years. Participants were divided into normal weight and OW/OB groups according to body mass index. Clinic and 24 h ambulatory systolic and diastolic blood pressure were measured. Inflammatory markers included leptin, interleukin-6, interleukin-8, tumour necrosis factor-α, adiponectin, interleukin-10, and C-reactive protein. After adjustments for age, sex, and ethnicity, the OW/OB group had higher blood pressure and an overall worse inflammatory profile compared to the normal weight group (all p ≤ 0.024). In the OW/OB group, 24 h systolic (r = 0.22; p < 0.001) and diastolic blood pressure (r = 0.28; p < 0.001) correlated with leptin, independent of age, sex, and ethnicity. In fully adjusted regression models, 24 h systolic blood pressure (adj.R2 = 0.25; β = 0.28; p = 0.035) and diastolic blood pressure (adj.R2 = 0.10; β = 0.32; p = 0.034), associated with leptin in the OW/OB group and significance remained with additional adjustments for visceral adiposity index. Twenty-four-hour ambulatory, but not clinic blood pressure, is related to leptin in young adults with OW/OB. Leptin shows a stronger relationship with adiposity when compared to other inflammatory markers and may play a role in subcutaneous adiposity-related increased blood pressure.
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Affiliation(s)
- Elandi van Niekerk
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Shani Botha-Le Roux
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Catharina M C Mels
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Mariette Swanepoel
- Physical activity, Sport and Recreation (PhASRec), North-West University, Potchefstroom, South Africa
| | - Christian Delles
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Ruan Kruger
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa.
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa.
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Karmazyn M, Gan XT. Molecular and Cellular Mechanisms Underlying the Cardiac Hypertrophic and Pro-Remodelling Effects of Leptin. Int J Mol Sci 2024; 25:1137. [PMID: 38256208 PMCID: PMC10816997 DOI: 10.3390/ijms25021137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Since its initial discovery in 1994, the adipokine leptin has received extensive interest as an important satiety factor and regulator of energy expenditure. Although produced primarily by white adipocytes, leptin can be synthesized by numerous tissues including those comprising the cardiovascular system. Cardiovascular function can thus be affected by locally produced leptin via an autocrine or paracrine manner but also by circulating leptin. Leptin exerts its effects by binding to and activating specific receptors, termed ObRs or LepRs, belonging to the Class I cytokine family of receptors of which six isoforms have been identified. Although all ObRs have identical intracellular domains, they differ substantially in length in terms of their extracellular domains, which determine their ability to activate cell signalling pathways. The most important of these receptors in terms of biological effects of leptin is the so-called long form (ObRb), which possesses the complete intracellular domain linked to full cell signalling processes. The heart has been shown to express ObRb as well as to produce leptin. Leptin exerts numerous cardiac effects including the development of hypertrophy likely through a number of cell signaling processes as well as mitochondrial dynamics, thus demonstrating substantial complex underlying mechanisms. Here, we discuss mechanisms that potentially mediate leptin-induced cardiac pathological hypertrophy, which may contribute to the development of heart failure.
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Karna S, Kang KW. An Overview of the Mechanism behind Excessive Volume of Pericardial Fat in Heart Failure. J Obes Metab Syndr 2023; 32:322-329. [PMID: 38036419 PMCID: PMC10786210 DOI: 10.7570/jomes23042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/11/2023] [Accepted: 10/11/2023] [Indexed: 12/02/2023] Open
Abstract
Heart failure (HF) is a clinical syndrome characterized by myocardial dysfunction leading to inefficient blood filling or ejection. Regardless of the etiology, various mechanisms, including adipokine hypersecretion, proinflammatory cytokines, stem cell proliferation, oxidative stress, hyperglycemic toxicity, and autonomic nervous system dysregulation in the pericardial fat (PCF), contribute to the development of HF. PCF has been directly associated with cardiovascular disease, and an increased PCF volume is associated with HF. The PCF acts as neuroendocrine tissue that is closely linked to myocardial function and acts as an energy reservoir. This review aims to summarize each mechanism associated with PCF in HF.
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Affiliation(s)
- Sandeep Karna
- Division of Cardiology, Cardiovascular Arrhythmia Center, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Ki-Woon Kang
- Division of Cardiology, Cardiovascular Arrhythmia Center, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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Al Zein M, Zein O, Diab R, Dimachkie L, Sahebkar A, Al-Asmakh M, Kobeissy F, Eid AH. Intermittent fasting favorably modulates adipokines and potentially attenuates atherosclerosis. Biochem Pharmacol 2023; 218:115876. [PMID: 37871879 DOI: 10.1016/j.bcp.2023.115876] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/25/2023]
Abstract
Adipose tissue is now recognized as an endocrine organ that secretes bioactive molecules called adipokines. These biomolecules regulate key physiological functions, including insulin sensitivity, energy metabolism, appetite regulation, endothelial function and immunity. Dysregulated secretion of adipokines is intimately associated with obesity, and translates into increased risk of obesity-related cardiovasculo-metabolic diseases. In particular, emerging evidence suggests that adipokine imbalance contributes to the pathogenesis of atherosclerosis. One of the promising diet regimens that is beneficial in the fight against obesity and cardiometabolic disorders is intermittent fasting (IF). Indeed, IF robustly suppresses inflammation, meditates weight loss and mitigates many aspects of the cardiometabolic syndrome. In this paper, we review the main adipokines and their role in atherosclerosis, which remains a major contributor to cardiovascular-associated morbidity and mortality. We further discuss how IF can be employed as an effective management modality for obesity-associated atherosclerosis. By exploring a plethora of the beneficial effects of IF, particularly on inflammatory markers, we present IF as a possible intervention to help prevent atherosclerosis.
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Affiliation(s)
- Mohammad Al Zein
- Faculty of Medical Sciences, Lebanese University, Hadath, Beirut, Lebanon
| | - Omar Zein
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Rawan Diab
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Lina Dimachkie
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maha Al-Asmakh
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar
| | - Firas Kobeissy
- Department of Neurobiology and Neuroscience, Morehouse School of Medicine, Atlanta, GA, USA
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.
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Ely EV, Kapinski AT, Paradi SG, Tang R, Guilak F, Collins KH. Designer Fat Cells: Adipogenic Differentiation of CRISPR-Cas9 Genome-Engineered Induced Pluripotent Stem Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.26.564206. [PMID: 37961399 PMCID: PMC10634849 DOI: 10.1101/2023.10.26.564206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Adipose tissue is an active endocrine organ that can signal bidirectionally to many tissues and organ systems in the body. With obesity, adipose tissue is a source of low-level inflammation that contributes to various co-morbidities and damage to downstream effector tissues. The ability to synthesize genetically engineered adipose tissue could have critical applications in studying adipokine signaling and the use of adipose tissue for novel therapeutic strategies. This study aimed to develop a method for non-viral adipogenic differentiation of genome-edited murine induced pluripotent stem cells (iPSCs) and to test the ability of such cells to engraft in mice in vivo . Designer adipocytes were created from iPSCs, which can be readily genetically engineered using CRISPR-Cas9 to knock out or insert individual genes of interest. As a model system for adipocyte-based drug delivery, an existing iPSC cell line that transcribes interleukin 1 receptor antagonist under the endogenous macrophage chemoattractant protein-1 promoter was tested for adipogenic capabilities under these same differentiation conditions. To understand the role of various adipocyte subtypes and their impact on health and disease, an efficient method was devised for inducing browning and whitening of IPSC-derived adipocytes in culture. Finally, to study the downstream effects of designer adipocytes in vivo , we transplanted the designer adipocytes into fat-free lipodystrophic mice as a model system for studying adipose signaling in different models of disease or repair. This novel translational tissue engineering and regenerative medicine platform provides an innovative approach to studying the role of adipose interorgan communication in various conditions.
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Besci Ö, Fırat SN, Özen S, Çetinkaya S, Akın L, Kör Y, Pekkolay Z, Özalkak Ş, Özsu E, Erdeve ŞS, Poyrazoğlu Ş, Berberoğlu M, Aydın M, Omma T, Akıncı B, Demir K, Oral EA. A National Multicenter Study of Leptin and Leptin Receptor Deficiency and Systematic Review. J Clin Endocrinol Metab 2023; 108:2371-2388. [PMID: 36825860 DOI: 10.1210/clinem/dgad099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/25/2023] [Accepted: 02/15/2023] [Indexed: 02/25/2023]
Abstract
CONTEXT Homozygous leptin (LEP) and leptin receptor (LEPR) variants lead to childhood-onset obesity. OBJECTIVE To present new cases with LEP and LEPR deficiency, report the long-term follow-up of previously described patients, and to define, based on all reported cases in literature, genotype-phenotype relationships. METHODS Our cohort included 18 patients (LEP = 11, LEPR = 7), 8 of whom had been previously reported. A systematic literature review was conducted in July 2022. Forty-two of 47 studies on LEP/LEPR were selected. RESULTS Of 10 new cases, 2 novel pathogenic variants were identified in LEP (c.16delC) and LEPR (c.40 + 5G > C). Eleven patients with LEP deficiency received metreleptin, 4 of whom had been treated for over 20 years. One patient developed loss of efficacy associated with neutralizing antibody development. Of 152 patients, including 134 cases from the literature review in addition to our cases, frameshift variants were the most common (48%) in LEP and missense variants (35%) in LEPR. Patients with LEP deficiency were diagnosed at a younger age [3 (9) vs 7 (13) years, P = .02] and had a higher median body mass index (BMI) SD score [3.1 (2) vs 2.8 (1) kg/m2, P = 0.02], which was more closely associated with frameshift variants (P = .02). Patients with LEP deficiency were more likely to have hyperinsulinemia (P = .02). CONCLUSION Frameshift variants were more common in patients with LEP deficiency whereas missense variants were more common in LEPR deficiency. Patients with LEP deficiency were identified at younger ages, had higher BMI SD scores, and had higher rates of hyperinsulinemia than patients with LEPR deficiency. Eleven patients benefitted from long-term metreleptin, with 1 losing efficacy due to neutralizing antibodies.
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Affiliation(s)
- Özge Besci
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir 35340, Turkey
| | - Sevde Nur Fırat
- Division of Endocrinology and Metabolism, University of Health Sciences Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Samim Özen
- Division of Pediatric Endocrinology, Faculty of Medicine, Ege University, İzmir 35100, Turkey
| | - Semra Çetinkaya
- Division of Pediatric Endocrinology, Health Sciences University, Dr Sami Ulus Obstetrics and Gynecology, Children's Health and Disease, Health Implementation and Research Center, Ankara 06010, Turkey
| | - Leyla Akın
- Division of Pediatric Endocrinology, Faculty of Medicine, Ondokuz Mayıs University, Samsun 55030, Turkey
| | - Yılmaz Kör
- Division of Pediatric Endocrinology, Ministry of Health, Adana Public Hospitals Association, Adana City Hospital, Adana 01040, Turkey
| | - Zafer Pekkolay
- Division of Endocrinology and Metabolism, Dicle University Faculty of Medicine, Diyarbakır 21280, Turkey
| | - Şervan Özalkak
- Division Pediatric Endocrinology, Diyarbakir Gazi Yaşargil Training and Research Hospital, Diyarbakır 21070, Turkey
| | - Elif Özsu
- Department of Pediatric Endocrinology, Ankara University Faculty of Medicine, Ankara 06100, Turkey
| | - Şenay Savaş Erdeve
- Division of Pediatric Endocrinology, Health Sciences University, Dr Sami Ulus Obstetrics and Gynecology, Children's Health and Disease, Health Implementation and Research Center, Ankara 06010, Turkey
| | - Şükran Poyrazoğlu
- Department of Pediatric Endocrinology, Istanbul University Istanbul Faculty of Medicine, İstanbul 34098, Turkey
| | - Merih Berberoğlu
- Department of Pediatric Endocrinology, Ankara University Faculty of Medicine, Ankara 06100, Turkey
| | - Murat Aydın
- Division of Pediatric Endocrinology, Faculty of Medicine, Ondokuz Mayıs University, Samsun 55030, Turkey
| | - Tülay Omma
- Division of Endocrinology and Metabolism, University of Health Sciences Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Barış Akıncı
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Dokuz Eylul University, İzmir 35340, Turkey
| | - Korcan Demir
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir 35340, Turkey
| | - Elif Arioglu Oral
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48105, USA
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Park HJ, Rhie SJ, Shim I. The effects of physical exercise therapy on weight control: its regulation of adipocyte physiology and metabolic capacity. J Exerc Rehabil 2023; 19:141-148. [PMID: 37435589 PMCID: PMC10331143 DOI: 10.12965/jer.2346232.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/29/2023] [Indexed: 07/13/2023] Open
Abstract
Factors associated with increased body mass, including dyslipidemia, hypertension, insulin resistance, vascular endothelial dysfunction and sleep disorders, may contribute to the exacerbation of cardiovascular disease. These health problems associated with obesity are caused by accumulated metabolism and physical and emotional stress. Lifestyle, especially exercise, is a major therapeutic strategy for the treatment and management of obesity-induced metabolic problems. Metabolic disease often co-occurs with abdominal obesity. Exercise is necessary for the treatment of obesity, diabetes and cardiovascular disease. A potential benefit of exercise is to promote fat burning and energy use increases both during exercise itself and in the post-exercise period. Exercise suppresses basal metabolic rate and also has many health benefits. Why should we exercise to lose weight? Does physical activity help lower blood pressure, blood cholesterol, and blood sugar? In this article, we review the positive effects of physical exercise on weight maintenance and weight loss, and the effectiveness of physical exercise on the treatment and prevention of metabolic syndrome.
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Affiliation(s)
- Hyun Jung Park
- Department of Food Science and Biotechnology, Kyonggi University, Suwon,
Korea
| | - Sung Ja Rhie
- Department of Beauty Design, Halla University, Wonju,
Korea
| | - Insop Shim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul,
Korea
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12
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Jin W, Tu F, Dong F, Deng Q, Abudureyimu M, Yu W, Cai GJ, Pei JM, Pei Z, Ren J. Interplay between obesity and aging on myocardial geometry and function: Role of leptin-STAT3-stress signaling. Biochim Biophys Acta Gen Subj 2023; 1867:130281. [PMID: 36410609 DOI: 10.1016/j.bbagen.2022.130281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/14/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Uncorrected obesity facilitates premature aging and cardiovascular anomalies. This study examined the interaction between obesity and aging on cardiac remodeling and contractile function. METHODS Cardiac echocardiographic geometry, function, morphology, intracellular Ca2+ handling, oxidative stress (DHE fluorescence), STAT3 and stress signaling were evaluated in young (3-mo) and old (12- and 18-mo) lean and leptin deficient ob/ob obese mice. Cardiomyocytes from young and old lean and ob/ob mice were treated with leptin (1 nM) for 4 h in vitro prior to assessment of mechanical and biochemical properties. High fat diet (45% calorie from fat) and the leptin receptor mutant db/db obese mice at young and old age were evaluated for comparison. RESULTS Our results displayed reduced survival in ob/ob mice. Obesity but less likely older age dampened echocardiographic, geometric, cardiomyocyte function and intracellular Ca2+ properties, elevated O2- and p47phox NADPH oxidase levels with a more pronounced geometric change at older age. Immunoblot analysis revealed elevated p47phox NADPH oxidase and dampened phosphorylation of STAT3, with a more pronounced response in old ob/ob mice, the effects were restored by leptin. Obesity and aging inhibited phosphorylation of Akt, eNOS, AMPK, and p38 while promoting phosphorylation of JNK and IκB. Leptin reconciled cardiomyocyte dysfunction, O2- yield, p47phox upregulation, STAT3 dephosphorylation and stress signaling in ob/ob mice although its action on stress signaling cascades were lost at old age. High fat diet-induced and db/db obesity displayed aging-associated cardiomyocyte anomalies reminiscent of ob/ob model albeit lost leptin response. CONCLUSIONS Our data suggest disparate age-associated obesity response in cardiac remodeling and contractile dysfunction due to phosphorylation of Akt, eNOS and stress signaling-related oxidative stress.
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Affiliation(s)
- Wei Jin
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 3330009, China
| | - Fei Tu
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 3330009, China
| | - Feng Dong
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Qinqin Deng
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 3330009, China
| | - Miyesaier Abudureyimu
- Cardiovascular Department, Shanghai Xuhui Central Hospital, Fudan University, Shanghai 200031, China
| | - Wei Yu
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Guo-Jun Cai
- Clinical Research Unit, Shanghai Tenth People's Hospital Tongji University, Shanghai 200072, China
| | - Jian-Ming Pei
- Department of Physiology, Fourth Military Medical University, Xi'an 710032, China.
| | - Zhaohui Pei
- The Second Department of Cardiology, The Third Hospital of Nanchang, Nanchang 3330009, China.
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China,.
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13
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Avazpour S, Amini A, Shirvani H, Arabzadeh E. Exercise modulation in inflammation and metabolic hormonal disorders of COVID-19 to decrease risk factors in coronary heart disease. Horm Mol Biol Clin Investig 2022:hmbci-2022-0040. [PMID: 36560914 DOI: 10.1515/hmbci-2022-0040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Sedentary life style separated during COVID-19 pandemic. Patients with cardiovascular diseases (CVD) are vulnerable with sedentary life style. Therefore, the aim of this study was to investigate the effect of 8 weeks of combined and high intensity interval training (HIIT) on C Reactive protein, galectin-3, leptin, fibrinogen and insulin resistance index in coronary heart disease after COVID-19. METHODS Thirty-six cardiovascular patients (55.14 ± 1.4 years, 78.6 ± 5.1 kg) were divided into three groups of combined exercise (n=13), HIIT (n=12) and control group (n=11). Combined exercise consisted of aerobic (4 weeks) and aerobic + HIIT exercise (4 weeks), three sessions per weeks. The protocol of the HIIT group included performing high intensity interval training, three sessions per weeks for 8 weeks. Blood samples were taken 24 h before the first training session and 48 h after the last training. C Reactive protein (CRP), galectin-3, leptin, fibrinogen measured with ELISA kit. RESULTS CRP, galectin-3 and fibrinogen decreased significantly after 8 weeks of combined training and HIIT (compare to pre-test). Also, insulin resistance index after 8 weeks of combined exercise showed a significant decrease compare to pre-test (p<0.05). After 8 weeks, CRP, galectin-3 and insulin resistance significantly decreased compare to control group (p<0.05). CONCLUSIONS In the patient with CVD, combined exercise training may be more effective than HIIT in reducing metabolic and heart risk factors after an epidemic such as COVID-19. However, change of leptin need to more studies.
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Affiliation(s)
- Sahar Avazpour
- Department of Sports Sciences, Sports Biochemistry and Metabolism, Faculty of Educational Sciences, Gerash University of Medical Science, Gerash, Iran
| | - Amin Amini
- Faculty of Artificial Intelligence and Cognitive Sciences, Imam Hossein University, Tehran, Iran
| | - Hossein Shirvani
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ehsan Arabzadeh
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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14
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Gao Y, Zhao G, Song Y, Haire A, Yang A, Zhao X, Wusiman A. Presence of leptin and its receptor in the ram reproductive system and in vitro effect of leptin on sperm quality. PeerJ 2022; 10:e13982. [PMID: 36187750 PMCID: PMC9521348 DOI: 10.7717/peerj.13982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/10/2022] [Indexed: 01/19/2023] Open
Abstract
Leptin is a 16 kDa hormone encoded by obese (OB) gene in adipocytes. This molecule not only regulates energy metabolism but also plays a role in the reproduction of mammals. Leptin and its receptor (OBR) have been found in male reproductive systems of human, bovine, equine and pig. The effects of leptin on sperm quality vary widely from different research findings. However, the presence of leptin and its receptor in the ram reproductive system and the in vitro effect of leptin on sperm quality have not reported yet. In the present study, we found that the OB was highly expressed in primary and secondary spermatocytes of the testes, OBR was highly expressed in secondary spermatocytes of the testes. The expressions of OB were in stereocilia of epididymis and in columnar cells of epididymal caput and cauda, the expressions of OBR were in columnar cells of epididymis and in stereocilia of epididymal corpus and cauda. The presence of both OB and OBR in testes, epididymis and sperm were confirmed through RT-PCR, immunolocalization and Western blot analyses. The RT-qPCR results indicated OB and OBR had higher expression levels in epididymal sperm than that of the ejaculated sperm in rams. When sperm were treated with 5 ng/mL leptin, the progressive motility (P < 0.01), straight-line velocity (VSL) (P < 0.05), average path velocity (VAP) (P < 0.05), membrane mitochondrial potential (MMP) (P < 0.01) and viability (P < 0.05) significantly increased, while DNA fragmentation index (DFI) and reactive oxygen species (ROS) significantly decreased compared to the control (P < 0.01), and the other semen parameters such as acrosome integrity and acrosome reaction rate had no significant changes between groups (P > 0.05). In conclusion, this is probably the first report describing localization of leptin and its receptors in the reproductive system of rams and their effects on sperm quality parameters. Our findings suggest that 5 ng/mL leptin treatment enhanced sperm motility, viability and MMP, and decrease DFI and ROS without obvious influence on the acrosome reaction in ram sperm. The potential mechanisms may be related to leptin's ability to reduce the oxidative stress and apoptosis of sperms and improve their mitochondrial function and energy supply, therefore, to maintain the physiological homeostasis of the sperm.
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Affiliation(s)
- Yu Gao
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China,Department of Reproductive Medicine, Zhuozhou Hospital of Hebei Province, Zhuozhou, Hebei, China
| | - Guodong Zhao
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
| | - Yukun Song
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
| | - Aerman Haire
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
| | - Ailing Yang
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
| | - Xi Zhao
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
| | - Abulizi Wusiman
- College of Animal Science, Xinjiang Agriculture University, Urumqi, Xinjiang, China
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15
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Remodeling and Fibrosis of the Cardiac Muscle in the Course of Obesity-Pathogenesis and Involvement of the Extracellular Matrix. Int J Mol Sci 2022; 23:ijms23084195. [PMID: 35457013 PMCID: PMC9032681 DOI: 10.3390/ijms23084195] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/09/2022] [Indexed: 12/16/2022] Open
Abstract
Obesity is a growing epidemiological problem, as two-thirds of the adult population are carrying excess weight. It is a risk factor for the development of cardiovascular diseases (hypertension, ischemic heart disease, myocardial infarct, and atrial fibrillation). It has also been shown that chronic obesity in people may be a cause for the development of heart failure with preserved ejection fraction (HFpEF), whose components include cellular hypertrophy, left ventricular diastolic dysfunction, and increased extracellular collagen deposition. Several animal models with induced obesity, via the administration of a high-fat diet, also developed increased heart fibrosis as a result of extracellular collagen accumulation. Excessive collagen deposition in the extracellular matrix (ECM) in the course of obesity may increase the stiffness of the myocardium and thereby deteriorate the heart diastolic function and facilitate the occurrence of HFpEF. In this review, we include a rationale for that process, including a discussion about possible putative factors (such as increased renin–angiotensin–aldosterone activity, sympathetic overdrive, hemodynamic alterations, hypoadiponectinemia, hyperleptinemia, and concomitant heart diseases). To address the topic clearly, we include a description of the fundamentals of ECM turnover, as well as a summary of studies assessing collagen deposition in obese individuals.
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16
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Blann AD, Brown JE, Heitmar R. Angiogenesis, Metabolism, Endothelial and Platelet Markers in Diabetes and Cardiovascular Disease. Br J Biomed Sci 2022; 79:10313. [PMID: 35996503 PMCID: PMC9302542 DOI: 10.3389/bjbs.2022.10313] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/15/2022] [Indexed: 12/31/2022]
Abstract
Introduction: Diabetes is a leading risk factor for cardiovascular disease (CVD), the pathophysiology of both being linked to metabolic, endothelial, renal, angiogenic and platelet abnormalities. We hypothesised that abnormalities in these systems are more adverse in those whose CVD is compounded by diabetes, compared to those with diabetes or CVD alone. Materials and methods: Serum or plasma from 66 patients with diabetes alone, 76 with CVD alone, and 70 with both diabetes and CVD i.e. diabetic cardiovascular disease, was probed for markers of angiogenesis [angiopoietin 1 and 2, vascular endothelial growth factor (VEGF) and endoglin], metabolic [soluble receptor for advanced glycation products (sRAGE), leptin, lipocalin-2, interleukin-8, and cystatin-C], the endothelium (von Willebrand factor, endothelial microparticles and soluble E selectin)], and the platelet (platelet microparticles and soluble P selectin) by ELISA, Luminex or flow cytometry. Results: VEGF (p = 0.04), von Willebrand factor (p = 0.001) and endothelial microparticles (p = 0.042) were all higher in diabetic cardiovascular disease than in diabetes alone and cardiovascular disease alone. Soluble E selectin was higher in diabetic cardiovascular disease than in diabetes alone (p = 0.045), whilst cystatin-C (p = 0.004) and soluble P selectin (p < 0.001) were higher in diabetes and diabetic cardiovascular disease than in cardiovascular disease alone. There were no differences in angiopoietin 1 or 2, endoglin, sRAGE, leptin, lipocalin-2, or interleukin-8. Conclusion: Angiopoietin 1 or 2, endoglin, sRAGE, leptin, lipocalin-2, interleukin-8, and cystatin-c cannot differentiate diabetes from cardiovascular disease, or both conditions combined. Our data point to a more adverse endothelial (von Willebrand factor, endothelial microparticles), and angiogenic profile (VEGF) in those with diabetic cardiovascular disease, supporting the view that this group should be targeted more aggressively.
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Affiliation(s)
- A. D. Blann
- School of Applied Sciences, Huddersfield University, Huddersfield, United Kingdom
- *Correspondence: A. D. Blann,
| | - J. E. Brown
- Department of Biosciences, College of Health and Life Sciences, Aston University, Birmingham, United Kingdom
| | - R. Heitmar
- School of Applied Sciences, Huddersfield University, Huddersfield, United Kingdom
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17
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Suriagandhi V, Nachiappan V. Protective Effects of Melatonin against Obesity-Induced by Leptin Resistance. Behav Brain Res 2022; 417:113598. [PMID: 34563600 DOI: 10.1016/j.bbr.2021.113598] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/01/2021] [Accepted: 09/21/2021] [Indexed: 12/20/2022]
Abstract
Consumption of an exceedingly high-fat diet with irregular eating and sleeping habits is typical in the current sedentary lifestyle, leading to chronic diseases like obesity and diabetes mellitus. Leptin is a primary appetite-regulating hormone that binds to its receptors in the hypothalamic cell membrane and regulates downstream appetite-regulating neurons NPY/AgRp and POMC in the hypothalamus. Based on the fat content of the adipose tissue, leptin is secreted, and excess accumulation of fat in adipose tissue stimulates the abnormal secretion of leptin. The secreted leptin circulating in the bloodstream uses its transporters to cross the blood-brain barrier (BBB) and reach the CSF. There is a saturation limit for leptin bound to its transporters to cross the BBB, and increased leptin secretion in adipose tissue has a defect in its transport across the BBB. Leptin resistance is due to excess leptin, a saturation of its transporters, and deficiency in either the receptor level or signalling in the hypothalamus. Leptin resistance leads to obesity due to excess food intake and less energy expenditure. Normal leptin secretion follows a rhythm, and alteration in the lifestyle leads to hormonal imbalances and increases ROS generation leading to oxidative stress. The sleep disturbance causes obesity with increased lipid accumulation in adipose tissue. Melatonin is the master regulator of the sleep-wake cycle secreted by the pineal gland during the night. It is a potent antioxidant with anti-inflammatory properties. Melatonin is secreted in a pattern called the circadian rhythm in humans as well. Research indicates that melatonin plays a vital role in hormonal regulation and energy metabolism, including leptin signalling and secretion. Studying the role of melatonin in leptin regulation will help us combat the pathologies of obesity caused by leptin resistance.
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Affiliation(s)
- Vennila Suriagandhi
- Biomembrane Lab, Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Vasanthi Nachiappan
- Biomembrane Lab, Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India.
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18
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Gar C, Thorand B, Herder C, Sujana C, Heier M, Meisinger C, Peters A, Koenig W, Rathmann W, Roden M, Stumvoll M, Maalmi H, Meitinger T, Then H, Seissler J, Then C. Association of circulating MR-proADM with all-cause and cardiovascular mortality in the general population: Results from the KORA F4 cohort study. PLoS One 2022; 17:e0262330. [PMID: 34990470 PMCID: PMC8735665 DOI: 10.1371/journal.pone.0262330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 12/22/2021] [Indexed: 11/23/2022] Open
Abstract
Background and aim Despite its vasodilatory effect, adrenomedullin and its surrogate mid-regional pro-adrenomedullin (MR-proADM) have been found to be positively associated with all-cause and cardiovascular mortality. However, the underlying mechanisms thereof remain unclear and the associations were mostly shown in geriatric cohorts or in patients with chronic diseases. Therefore, we aimed to investigate the possible involvement of abdominal obesity, selected adipokines, and biomarkers of subclinical inflammation in the association of MR-proADM with mortality in a population based study cohort. Methods Prospective analysis of the KORA F4 study; median follow-up 9.1 (8.8–9.4) years. Complete data on MR-proADM and mortality was available for 1551 participants, aged 56.9±12.9 years (mean±SD). Correlation and regression analyses of MR-proADM with overall (BMI) and abdominal obesity (waist circumference), selected adipokines and biomarkers of subclinical inflammation. Cox proportional hazard models on the association of MR-proADM with all-cause and cardiovascular mortality with adjustment for cardiovascular risk factors and selected biomarkers in study subgroups (n = 603–1551). Results MR-proADM associated with all-cause (HR (95%CI): 2.37 (1.72–3.26) and 2.31 (1.67–3.20)) and cardiovascular mortality (4.28 (2.19–8.39) and 4.44 (2.25–8.76)) after adjustment for traditional cardiovascular risk factors including BMI or waist circumference, respectively. MR-proADM was further associated with four out of seven examined adipokines (leptin, retinol-binding protein-4, chemerin, and adiponectin) and with five out of eleven examined biomarkers of subclinical inflammation (high-sensitivity C-reactive protein, interleukin-6, myeloperoxidase, interleukin-22, and interleukin-1 receptor antagonist) after multivariable adjustment and correction for multiple testing. However, only IL-6 substantially attenuated the association of MR-proADM with all-cause mortality. Conclusions We found an association of MR-proADM with (abdominal) obesity, selected adipokines, and biomarkers of subclinical inflammation. However, the association of MR-proADM with mortality was independent of these parameters. Future studies should investigate the role of IL-6 and further characteristics of subclinical inflammation in the association between MR-proADM and all-cause mortality.
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Affiliation(s)
- Christina Gar
- Department of Medicine IV, University Hospital, LMU Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- * E-mail:
| | - Barbara Thorand
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Christian Herder
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Chaterina Sujana
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Ludwig-Maximilians-Universität, Munich, Germany
| | - Margit Heier
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- KORA Study Centre, University Hospital Augsburg, Augsburg, Germany
| | - Christa Meisinger
- Independent Research Group Clinical Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- Chair of Epidemiology at University Hospital Augsburg, Augsburg, Germany
| | - Annette Peters
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Wolfgang Koenig
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Wolfgang Rathmann
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- German Diabetes Center, Leibniz Institute at Heinrich Heine University Düsseldorf, Institute of Biometrics and Epidemiology, Düsseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | | | - Haifa Maalmi
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Thomas Meitinger
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Institute of Human Genetics, Technische Universität München, Munich, Germany
| | - Holger Then
- Freie Waldorfschule Augsburg, Augsburg, Germany
| | - Jochen Seissler
- Department of Medicine IV, University Hospital, LMU Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Cornelia Then
- Department of Medicine IV, University Hospital, LMU Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
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19
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Fonseca GWPD, von Haehling S. The fatter, the better in old age: the current understanding of a difficult relationship. Curr Opin Clin Nutr Metab Care 2022; 25:1-6. [PMID: 34861670 DOI: 10.1097/mco.0000000000000802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Obesity has shown a protective effect on mortality in older adults, also known as the obesity paradox, but there are still controversies about this relationship. RECENT FINDINGS Recent studies have shown a J or U-shaped relationship between BMI and mortality, wherein an optimal range is described between 22 and 37 kg/m2 depending on the condition. Many mechanisms can explain this protective effect of higher BMI, fat/muscle mass storage, more aggressive treatment in obese individuals, loss of bone mineral content and selection bias. However, BMI must be used with caution due to its limitations to determine body composition and fat distribution. SUMMARY Although BMI is an easy tool to evaluate obesity, its protective effect may be present to certain extend, from normal range to class I obesity (BMI 30-34.9 kg/m2), but then it becomes detrimental. Skeletal muscle mass and muscle function associated with adipose tissue assessment can add valuable information in the risk stratification. Further studies should be performed prospectively, adjust BMI for cofounding variable and consider other elderly subpopulations. To promote healthy ageing, excessive fat mass should be avoided and maintenance or improvement of skeletal muscle mass and muscle function should be stimulated in older adults.
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Affiliation(s)
- Guilherme Wesley Peixoto da Fonseca
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo/SP, Brazil
- Department of Physical Education and Sport Sciences, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
| | - Stephan von Haehling
- Department of Cardiology and Pneumology, University of Göttingen Medical Center (UMG)
- German Centre for Cardiovascular Research (DZHK) Partner Site, Göttingen, Germany
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20
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Polyakova EA, Mikhaylov EN, Galagudza MM, Shlyakhto EV. Hyperleptinemia results in systemic inflammation and the exacerbation of ischemia-reperfusion myocardial injury. Heliyon 2021; 7:e08491. [PMID: 34901513 PMCID: PMC8640453 DOI: 10.1016/j.heliyon.2021.e08491] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/09/2021] [Accepted: 11/24/2021] [Indexed: 12/01/2022] Open
Abstract
Aim Hyperleptinemia potentiates the effects of many atherogenic factors, such as inflammation, platelet aggregation, migration, hypertrophy, proliferation of vascular smooth muscle cells, and endothelial cell dysfunction. The present study analysed the effects of long-term hyperleptinemia in an in vivo myocardial ischemia-reperfusion model to demonstrate whether the in vivo deleterious effect also affects cardiac structure and function. Main methods Rats were subcutaneously administered leptin for 8 days to estimate the involvement of the JAK/STAT pathway. Data from 58 male Wistar rats were included in the final analysis. Myocardial infarction (MI) was modelled by the 30-minute ligation of the main left coronary artery followed by 120-minute reperfusion. Hemodynamic measurements, electrocardiography monitoring, echocardiography, myocardial infarct size and area at risk, blood biochemical parameters, leptin, IL-6, TNF-alpha, FGF-21, and cardiomyocyte morphology were measured. The expression of JAK2, p-JAK2, STAT3, p-STAT3 was assessed by Western Blot analysis. Statistical analyses were performed using IBM SPSS Statistics v.26. Key findings Eight-day hyperleptinemia in rats leads to an increase in blood pressure and heart rate, myocardial hypertrophy, impaired LV function, the frequency of ischemic arrhythmias, dyslipidemia, systemic inflammation, and the size of induced myocardial infarction. Significance: The blockade of the JAK/STAT signalling pathway effectively reverses the negative effects of leptin, including increased blood pressure and total cholesterol.
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Affiliation(s)
- Ekaterina A Polyakova
- Almazov National Medical Research Centre, Institute of Experimental Medicine, Saint-Petersburg, Russian Federation
| | - Evgeny N Mikhaylov
- Almazov National Medical Research Centre, Institute of Experimental Medicine, Saint-Petersburg, Russian Federation
| | - Michael M Galagudza
- Almazov National Medical Research Centre, Institute of Experimental Medicine, Saint-Petersburg, Russian Federation
| | - Evgeny V Shlyakhto
- Almazov National Medical Research Centre, Institute of Experimental Medicine, Saint-Petersburg, Russian Federation
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21
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Ernsberger U, Deller T, Rohrer H. The sympathies of the body: functional organization and neuronal differentiation in the peripheral sympathetic nervous system. Cell Tissue Res 2021; 386:455-475. [PMID: 34757495 PMCID: PMC8595186 DOI: 10.1007/s00441-021-03548-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/20/2021] [Indexed: 02/06/2023]
Abstract
During the last 30 years, our understanding of the development and diversification of postganglionic sympathetic neurons has dramatically increased. In parallel, the list of target structures has been critically extended from the cardiovascular system and selected glandular structures to metabolically relevant tissues such as white and brown adipose tissue, lymphoid tissues, bone, and bone marrow. A critical question now emerges for the integration of the diverse sympathetic neuron classes into neural circuits specific for these different target tissues to achieve the homeostatic regulation of the physiological ends affected.
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Affiliation(s)
- Uwe Ernsberger
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany.
| | - Thomas Deller
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany
| | - Hermann Rohrer
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany.
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22
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Chavakis T, Wielockx B, Hajishengallis G. Inflammatory Modulation of Hematopoiesis: Linking Trained Immunity and Clonal Hematopoiesis with Chronic Disorders. Annu Rev Physiol 2021; 84:183-207. [PMID: 34614373 DOI: 10.1146/annurev-physiol-052521-013627] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Inflammation-adapted hematopoietic stem and progenitor cells (HSPCs) have long been appreciated as key drivers of emergency myelopoiesis, thereby enabling the bone marrow to meet the elevated demand for myeloid cell generation under various stress conditions, such as systemic infection, inflammation, or myelosuppressive insults. In recent years, HSPC adaptations were associated with potential involvement in the induction of long-lived trained immunity and the emergence of clonal hematopoiesis of indeterminate potential (CHIP). Whereas trained immunity has context-dependent effects, protective in infections and tumors but potentially detrimental in chronic inflammatory diseases, CHIP increases the risk for hematological neoplastic disorders and cardiometabolic pathologies. This review focuses on the inflammatory regulation of HSPCs in the aforementioned processes and discusses how modulation of HSPC function could lead to novel therapeutic interventions. Expected final online publication date for the Annual Review of Physiology, Volume 84 is February 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic, Technische Universität Dresden, 01307 Dresden, Germany; ,
| | - Ben Wielockx
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic, Technische Universität Dresden, 01307 Dresden, Germany; ,
| | - George Hajishengallis
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6030, USA;
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23
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Mattioli AV, Coppi F, Nasi M, Pinti M. Letter: Does Obesity Affect the Severity of Exercise-Induced Muscle Injury? (J Obes Metab Syndr 2021;30:132-40). J Obes Metab Syndr 2021; 30:312-314. [PMID: 34504047 PMCID: PMC8526289 DOI: 10.7570/jomes21050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/29/2021] [Accepted: 06/07/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Anna Vittoria Mattioli
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Coppi
- Cardiology Division, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Milena Nasi
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
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24
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Greene SM, Sanchez YR, Pathapati N, Davis GN, Gould GG. Assessment of autism-relevant behaviors in C57BKS/J leptin receptor deficient mice. Horm Behav 2021; 129:104919. [PMID: 33428921 PMCID: PMC7965341 DOI: 10.1016/j.yhbeh.2020.104919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 10/22/2022]
Abstract
Gestational diabetes mellitus (GDM) was associated with greater autism risk in epidemiological studies. Disrupted leptin signaling may contribute to their coincidence, as it is found in both disorders. Given this we examined leptin receptor (Lepr) deficient (BKS.Cg-Dock7m +/+ Leprdb/J diabetic (db)) heterozygous (db/+) mice for autism-relevant behaviors. BKS db/+ females are lean with normal blood glucose, but they develop GDM while pregnant. We hypothesized BKS db/+ offspring might exhibit physiological and behavior traits consistent with autism. Adolescent body weight, fasting blood glucose, serum corticosterone, social preferences, self-grooming, marble burying, social dominance and cognitive flexibility of BKS db/+ mice was compared to C57BLKS/J (BKS) and C57BL/6J (BL6) mice. Male db/+ weighed more and had higher blood glucose and corticosterone relative to BL6, but not BKS mice. Also, male db/+ lacked social interaction preference, explored arenas less, and buried more marbles than BL6, but not BKS males. Male and female db/+ were more dominant and made more mistakes in water T-mazes locating a sunken platform after its position was reversed than BL6, but not BKS mice. Overall BKS db/+, particularly males, exhibited some autism-like social deficits and restrictive-repetitive behaviors relative to BL6, but BKS strain contributions to BKS db/+ behaviors were evident. Since BKS db/+ and BKS behavioral and physiological phenotypes are already so similar, it will be difficult to use these models in studies designed to detect contributions of fetal GDM exposures to offspring behaviors.
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Affiliation(s)
- Susan M Greene
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Yatzil R Sanchez
- School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Nikhita Pathapati
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Gianna N Davis
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Georgianna G Gould
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
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