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Li M, Qian M, Kyler K, Xu J. Adipose Tissue-Endothelial Cell Interactions in Obesity-Induced Endothelial Dysfunction. Front Cardiovasc Med 2021; 8:681581. [PMID: 34277732 PMCID: PMC8282205 DOI: 10.3389/fcvm.2021.681581] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/01/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity has a strong impact on the pathogenesis of cardiovascular disease, which raises enthusiasm to understand how excess adiposity causes vascular injury. Adipose tissue is an essential regulator of cardiovascular system through its endocrine and paracrine bioactive products. Obesity induces endothelial dysfunction, which often precedes and leads to the development of cardiovascular diseases. Connecting adipose tissue-endothelial cell interplay to endothelial dysfunction may help us to better understand obesity-induced cardiovascular disease. This Mini Review discussed (1) the general interactions and obesity-induced endothelial dysfunction, (2) potential targets, and (3) the outstanding questions for future research.
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Affiliation(s)
- Manna Li
- Department of Medicine, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma, OK, United States
| | - Ming Qian
- Department of Medicine, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma, OK, United States
| | - Kathy Kyler
- Office of Research Administration, University of Oklahoma Health Sciences Center, Oklahoma, OK, United States
| | - Jian Xu
- Department of Medicine, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma, OK, United States
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102
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Sowka A, Dobrzyn P. Role of Perivascular Adipose Tissue-Derived Adiponectin in Vascular Homeostasis. Cells 2021; 10:cells10061485. [PMID: 34204799 PMCID: PMC8231548 DOI: 10.3390/cells10061485] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 12/27/2022] Open
Abstract
Studies of adipose tissue biology have demonstrated that adipose tissue should be considered as both passive, energy-storing tissue and an endocrine organ because of the secretion of adipose-specific factors, called adipokines. Adiponectin is a well-described homeostatic adipokine with metabolic properties. It regulates whole-body energy status through the induction of fatty acid oxidation and glucose uptake. Adiponectin also has anti-inflammatory and antidiabetic properties, making it an interesting subject of biomedical studies. Perivascular adipose tissue (PVAT) is a fat depot that is conterminous to the vascular wall and acts on it in a paracrine manner through adipokine secretion. PVAT-derived adiponectin can act on the vascular wall through endothelial cells and vascular smooth muscle cells. The present review describes adiponectin's structure, receptors, and main signaling pathways. We further discuss recent studies of the extent and nature of crosstalk between PVAT-derived adiponectin and endothelial cells, vascular smooth muscle cells, and atherosclerotic plaques. Furthermore, we argue whether adiponectin and its receptors may be considered putative therapeutic targets.
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103
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Tang Y, Wang D, Zhang H, Zhang Y, Wang J, Qi R, Yang J, Shen H, Xu Y, Li M. Rapid responses of adipocytes to iron overload increase serum TG level by decreasing adiponectin. J Cell Physiol 2021; 236:7544-7553. [PMID: 33855731 DOI: 10.1002/jcp.30391] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/14/2021] [Accepted: 03/30/2021] [Indexed: 12/13/2022]
Abstract
Iron overload is tightly connected with metabolic disorders. Excess iron in the adipose and its roles in dyslipidemia are of interest to be identified. In acute iron overload mice receiving intraperitoneal injection of 100 mg/kg/day dextran-iron for 5 days, the epididymis adipose showed a remarkable increase in iron. Serum triglyceride and low-density lipoprotein cholesterol (LDL-C) levels were increased and high-density lipoprotein cholesterol (HDL-C) level was decreased, while serum alkaline phosphatase, aspartate aminotransferase, glucose, and insulin were not affected. The serum-cytokine-microarray showed that adipocytokines, including adiponectin, leptin, and resistin were significantly decreased. Other serum cytokines, including pro-insulin cytokines, inflammatory cytokines, chemokines, and growth factors were not changed, except that ghrelin and chemokine RANTES were increased. Iron overload decreased expressions of adiponectin and leptin both in vivo and in vitro. Intraperitoneal injection of recombinant leptin at 1 μg/g in acute iron overload mice had no significant effects on serum levels of TC, TG, HDL-C, and LDL-C, while intraperitoneal injection of recombinant adiponectin at 3 μg/g partially restored serum TG level through improving activities of lipoprotein lipase and hepatic lipase, but abnormal serum LDL-C and HDL-C were not redressed, suggesting other mechanisms also existed. In conclusion, the adipose responds to iron overload at an early stage to interfere with lipid metabolism by secreting adipocytokines, which may further affect glucose metabolism, inflammation, and other iron overload-induced effects on the body.
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Affiliation(s)
- Yuxiao Tang
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Dongyao Wang
- School of Pharmacy, Second Military Medical University, Shanghai, China.,Faculty of Pharmacy, Shanghai University, Shanghai, China
| | - Hongwei Zhang
- Department of Nutrition, Second Military Medical University, Shanghai, China.,Department of Clinical Nutrition, Zhumadian Second People's Hospital, Henan, China
| | - Yinyin Zhang
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Jie Wang
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Ruirui Qi
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Jianxin Yang
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Hui Shen
- Department of Nutrition, Second Military Medical University, Shanghai, China
| | - Yan Xu
- Institute of International Medical Science and Technology, Sanda University, Shanghai, China
| | - Min Li
- Department of Nutrition, Second Military Medical University, Shanghai, China.,Institute of International Medical Science and Technology, Sanda University, Shanghai, China
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104
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Dwaib HS, AlZaim I, Eid AH, Obeid O, El-Yazbi AF. Modulatory Effect of Intermittent Fasting on Adipose Tissue Inflammation: Amelioration of Cardiovascular Dysfunction in Early Metabolic Impairment. Front Pharmacol 2021; 12:626313. [PMID: 33897419 PMCID: PMC8062864 DOI: 10.3389/fphar.2021.626313] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/18/2021] [Indexed: 12/15/2022] Open
Abstract
Cardiometabolic syndrome (CMS) is a cluster of maladaptive cardiovascular, renal, thrombotic, inflammatory, and metabolic disorders. It confers a high risk of cardiovascular mortality and morbidity. CMS is triggered by major shifts in lifestyle and dietary habits with increased consumption of refined, calorie-dense diets. Evidence indicates that diet-induced CMS is linked to Adipose tissue (AT) inflammation. This led to the proposal that adipose inflammation may be involved in metabolic derangements, such as insulin resistance and poor glycemic control, as well as the contribution to the inflammatory process predisposing patients to increased cardiovascular risk. Therefore, in the absence of direct pharmacological interventions for the subclinical phase of CMS, time restricted feeding regimens were anticipated to alleviate early metabolic damage and subsequent comorbidities. These regimens, referred to as intermittent fasting (IF), showed a strong positive impact on the metabolic state of obese and non-obese human subjects and animal models, positive AT remodeling in face of overnutrition and high fat diet (HFD) consumption, and improved CV outcomes. Here, we summarize the available evidence on the role of adipose inflammation in triggering cardiovascular impairment in the context of diet induced CMS with an emphasis on the involvement of perivascular adipose tissue. As well, we propose some possible molecular pathways linking intermittent fasting to the ameliorative effect on adipose inflammation and cardiovascular dysfunction under such circumstances. We highlight a number of targets, whose function changes in perivascular adipose tissue inflammation and could be modified by intermittent fasting acting as a novel approach to ameliorate the inflammatory status.
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Affiliation(s)
- Haneen S Dwaib
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Ibrahim AlZaim
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Omar Obeid
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.,Faculty of Pharmacy, Al-Alamein International University, Alamein, Egypt
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105
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Abstract
Cardiovascular diseases are the leading cause of death worldwide. Overweight and obesity are strongly associated with comorbidities such as hypertension and insulin resistance, which collectively contribute to the development of cardiovascular diseases and resultant morbidity and mortality. Forty-two percent of adults in the United States are obese, and a total of 1.9 billion adults worldwide are overweight or obese. These alarming numbers, which continue to climb, represent a major health and economic burden. Adipose tissue is a highly dynamic organ that can be classified based on the cellular composition of different depots and their distinct anatomical localization. Massive expansion and remodeling of adipose tissue during obesity differentially affects specific adipose tissue depots and significantly contributes to vascular dysfunction and cardiovascular diseases. Visceral adipose tissue accumulation results in increased immune cell infiltration and secretion of vasoconstrictor mediators, whereas expansion of subcutaneous adipose tissue is less harmful. Therefore, fat distribution more than overall body weight is a key determinant of the risk for cardiovascular diseases. Thermogenic brown and beige adipose tissue, in contrast to white adipose tissue, is associated with beneficial effects on the vasculature. The relationship between the type of adipose tissue and its influence on vascular function becomes particularly evident in the context of the heterogenous phenotype of perivascular adipose tissue that is strongly location dependent. In this review, we address the abnormal remodeling of specific adipose tissue depots during obesity and how this critically contributes to the development of hypertension, endothelial dysfunction, and vascular stiffness. We also discuss the local and systemic roles of adipose tissue derived secreted factors and increased systemic inflammation during obesity and highlight their detrimental impact on cardiovascular health.
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Affiliation(s)
- Mascha Koenen
- Laboratory of Molecular Metabolism, The Rockefeller University, New York (M.K., P.C.)
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia (M.A.H., J.R.S.)
- Department of Medical Pharmacology and Physiology (M.A.H., J.R.S.), University of Missouri School of Medicine, Columbia
| | - Paul Cohen
- Laboratory of Molecular Metabolism, The Rockefeller University, New York (M.K., P.C.)
| | - James R Sowers
- Dalton Cardiovascular Research Center, University of Missouri, Columbia (M.A.H., J.R.S.)
- Department of Medical Pharmacology and Physiology (M.A.H., J.R.S.), University of Missouri School of Medicine, Columbia
- Diabetes and Cardiovascular Center (J.R.S.), University of Missouri School of Medicine, Columbia
- Department of Medicine (J.R.S.), University of Missouri School of Medicine, Columbia
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106
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Moraes RDA, Webb RC, Silva DF. Vascular Dysfunction in Diabetes and Obesity: Focus on TRP Channels. Front Physiol 2021; 12:645109. [PMID: 33716794 PMCID: PMC7952965 DOI: 10.3389/fphys.2021.645109] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/09/2021] [Indexed: 01/22/2023] Open
Abstract
Transient receptor potential (TRP) superfamily consists of a diverse group of non-selective cation channels that has a wide tissue distribution and is involved in many physiological processes including sensory perception, secretion of hormones, vasoconstriction/vasorelaxation, and cell cycle modulation. In the blood vessels, TRP channels are present in endothelial cells, vascular smooth muscle cells, perivascular adipose tissue (PVAT) and perivascular sensory nerves, and these channels have been implicated in the regulation of vascular tone, vascular cell proliferation, vascular wall permeability and angiogenesis. Additionally, dysfunction of TRP channels is associated with cardiometabolic diseases, such as diabetes and obesity. Unfortunately, the prevalence of diabetes and obesity is rising worldwide, becoming an important public health problems. These conditions have been associated, highlighting that obesity is a risk factor for type 2 diabetes. As well, both cardiometabolic diseases have been linked to a common disorder, vascular dysfunction. In this review, we briefly consider general aspects of TRP channels, and we focus the attention on TRPC (canonical or classical), TRPV (vanilloid), TRPM (melastatin), and TRPML (mucolipin), which were shown to be involved in vascular alterations of diabetes and obesity or are potentially linked to vascular dysfunction. Therefore, elucidation of the functional and molecular mechanisms underlying the role of TRP channels in vascular dysfunction in diabetes and obesity is important for the prevention of vascular complications and end-organ damage, providing a further therapeutic target in the treatment of these metabolic diseases.
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Affiliation(s)
- Raiana Dos Anjos Moraes
- Laboratory of Cardiovascular Physiology and Pharmacology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil.,Postgraduate Course in Biotechnology in Health and Investigative Medicine, Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Brazil
| | - R Clinton Webb
- Department of Cell Biology and Anatomy and Cardiovascular Translational Research Center, University of South Carolina, Columbia, SC, United States
| | - Darízy Flávia Silva
- Laboratory of Cardiovascular Physiology and Pharmacology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil.,Postgraduate Course in Biotechnology in Health and Investigative Medicine, Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Brazil
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107
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Saxton SN, Toms LK, Aldous RG, Withers SB, Ohanian J, Heagerty AM. Restoring Perivascular Adipose Tissue Function in Obesity Using Exercise. Cardiovasc Drugs Ther 2021; 35:1291-1304. [PMID: 33687595 PMCID: PMC8578065 DOI: 10.1007/s10557-020-07136-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/21/2020] [Indexed: 12/24/2022]
Abstract
Purpose Perivascular adipose tissue (PVAT) exerts an anti-contractile effect which is vital in regulating vascular tone. This effect is mediated via sympathetic nervous stimulation of PVAT by a mechanism which involves noradrenaline uptake through organic cation transporter 3 (OCT3) and β3-adrenoceptor-mediated adiponectin release. In obesity, autonomic dysfunction occurs, which may result in a loss of PVAT function and subsequent vascular disease. Accordingly, we have investigated abnormalities in obese PVAT, and the potential for exercise in restoring function. Methods Vascular contractility to electrical field stimulation (EFS) was assessed ex vivo in the presence of pharmacological tools in ±PVAT vessels from obese and exercised obese mice. Immunohistochemistry was used to detect changes in expression of β3-adrenoceptors, OCT3 and tumour necrosis factor-α (TNFα) in PVAT. Results High fat feeding induced hypertension, hyperglycaemia, and hyperinsulinaemia, which was reversed using exercise, independent of weight loss. Obesity induced a loss of the PVAT anti-contractile effect, which could not be restored via β3-adrenoceptor activation. Moreover, adiponectin no longer exerts vasodilation. Additionally, exercise reversed PVAT dysfunction in obesity by reducing inflammation of PVAT and increasing β3-adrenoceptor and OCT3 expression, which were downregulated in obesity. Furthermore, the vasodilator effects of adiponectin were restored. Conclusion Loss of neutrally mediated PVAT anti-contractile function in obesity will contribute to the development of hypertension and type II diabetes. Exercise training will restore function and treat the vascular complications of obesity. Supplementary Information The online version contains supplementary material available at 10.1007/s10557-020-07136-0.
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Affiliation(s)
- Sophie N Saxton
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
- The Lydia Becker Institute of Immunology & Inflammation, University of Manchester, Manchester, UK
| | - Lauren K Toms
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | | | - Sarah B Withers
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
- The Lydia Becker Institute of Immunology & Inflammation, University of Manchester, Manchester, UK
- School of Science, Engineering and Environment, University of Salford, Salford, UK
| | - Jacqueline Ohanian
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Anthony M Heagerty
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK.
- The Lydia Becker Institute of Immunology & Inflammation, University of Manchester, Manchester, UK.
- Division of Cardiovascular Sciences, Manchester Academic Health Science Centre, Core Technology Facility (3rd floor), 46 Grafton Street, Manchester, M13 9NT, UK.
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108
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Houben AJ, Stehouwer CD. Microvascular dysfunction: Determinants and treatment, with a focus on hyperglycemia. ENDOCRINE AND METABOLIC SCIENCE 2021. [DOI: 10.1016/j.endmts.2020.100073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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109
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New Insights into Stroke Prevention and Treatment: Gut Microbiome. Cell Mol Neurobiol 2021; 42:455-472. [PMID: 33635417 DOI: 10.1007/s10571-021-01047-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 01/22/2021] [Indexed: 02/07/2023]
Abstract
Stroke, a lethal neurological disease, accounts for a grave economic burden on society. Despite extensive basic and clinical studies on stroke prevention, a precise effective treatment approach for stroke at this stage remains unavailable. The majority of our body's gut microbiota plays a vital role in food digestion, immune regulation, and nervous system development, which is highly associated with the development of some diseases. Multiple clinical studies have documented variation in the composition of gut microbiota between stroke patients and healthy counterparts. Moreover, the intervention of intestinal symbiotic microorganisms via several mechanisms plays an active role in stroke prognosis. In the prevention and treatment of stroke, the gut microbiota gives off a seductive glow, this is a promising therapeutic target. This paper summarizes the current knowledge of stroke and gut microbiota, and systematically describes the possible mechanisms of interaction between stroke and gut microbiota, the relationship between stroke-related risk factors and gut microbiota, and the treatment of gut flora using microorganisms. Thus, it could valuably elucidate the correlation of gut microbiota with stroke incidence, providing stroke researchers with a new strategy for stroke prevention and treatment by regulating gut microbiota.
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110
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Li Y, Wang F, Imani S, Tao L, Deng Y, Cai Y. Natural Killer Cells: Friend or Foe in Metabolic Diseases? Front Immunol 2021; 12:614429. [PMID: 33717101 PMCID: PMC7943437 DOI: 10.3389/fimmu.2021.614429] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
The worldwide epidemic of metabolic diseases, especially obesity and other diseases caused by it, has shown a dramatic increase in incidence. A great deal of attention has been focused on the underlying mechanisms of these pathological processes and potential strategies to solve these problems. Chronic inflammation initiated by abdominal adipose tissues and immune cell activation in obesity is the major cause of the consequent development of complications. In addition to adipocytes, macrophages and monocytes, natural killer (NK) cells have been verified to be vital components involved in shaping the inflammatory microenvironment, thereby leading to various obesity-related metabolic diseases. Here, we provide an overview of the roles of NK cells and the interactions of these cells with other immune and nonimmune cells in the pathological processes of metabolic diseases. Finally, we also discuss potential therapeutic strategies targeting NK cells to treat metabolic diseases.
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Affiliation(s)
- Yi Li
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Student Brigade, Preclinical School of Medicine, The Fourth Military Medical University, Xi'an, China.,Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Fangjie Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Saber Imani
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Ling Tao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Youcai Deng
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yue Cai
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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111
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Xu J, Yang H, Yang L, Wang Z, Qin X, Zhou J, Dong L, Li J, Zhu M, Zhang X, Gao F. Acute glucose influx-induced mitochondrial hyperpolarization inactivates myosin phosphatase as a novel mechanism of vascular smooth muscle contraction. Cell Death Dis 2021; 12:176. [PMID: 33579894 PMCID: PMC7881016 DOI: 10.1038/s41419-021-03462-9] [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: 10/16/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 12/21/2022]
Abstract
It is well-established that long-term exposure of the vasculature to metabolic disturbances leads to abnormal vascular tone, while the physiological regulation of vascular tone upon acute metabolic challenge remains unknown. Here, we found that acute glucose challenge induced transient increases in blood pressure and vascular constriction in humans and mice. Ex vivo study in isolated thoracic aortas from mice showed that glucose-induced vascular constriction is dependent on glucose oxidation in vascular smooth muscle cells. Specifically, mitochondrial membrane potential (ΔΨm), an essential component in glucose oxidation, was increased along with glucose influx and positively regulated vascular smooth muscle tone. Mechanistically, mitochondrial hyperpolarization inhibited the activity of myosin light chain phosphatase (MLCP) in a Ca2+-independent manner through activation of Rho-associated kinase, leading to cell contraction. However, ΔΨm regulated smooth muscle tone independently of the small G protein RhoA, a major regulator of Rho-associated kinase signaling. Furthermore, myosin phosphatase target subunit 1 (MYPT1) was found to be a key molecule in mediating MLCP activity regulated by ΔΨm. ΔΨm positively phosphorylated MYPT1, and either knockdown or knockout of MYPT1 abolished the effects of glucose in stimulating smooth muscle contraction. In addition, smooth muscle-specific Mypt1 knockout mice displayed blunted response to glucose challenge in blood pressure and vascular constriction and impaired clearance rate of circulating metabolites. These results suggested that glucose influx stimulates vascular smooth muscle contraction via mitochondrial hyperpolarization-inactivated myosin phosphatase, which represents a novel mechanism underlying vascular constriction and circulating metabolite clearance.
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MESH Headings
- Adult
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/enzymology
- Blood Glucose/metabolism
- Blood Pressure/drug effects
- Cells, Cultured
- Glucose/administration & dosage
- Glucose/metabolism
- Humans
- Male
- Mannitol/administration & dosage
- Mannitol/blood
- Membrane Potential, Mitochondrial/drug effects
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/metabolism
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Myosin-Light-Chain Phosphatase/genetics
- Myosin-Light-Chain Phosphatase/metabolism
- Oxidation-Reduction
- Random Allocation
- Signal Transduction
- Vasoconstriction/drug effects
- rhoA GTP-Binding Protein/genetics
- rhoA GTP-Binding Protein/metabolism
- Mice
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Affiliation(s)
- Jie Xu
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
- Department of Cardiology, 986th Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Hongyan Yang
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Lu Yang
- School of Basic Medical Sciences, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhen Wang
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Xinghua Qin
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jiaheng Zhou
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Ling Dong
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jia Li
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Minsheng Zhu
- Model Animal Research Center, Nanjing University, Nanjing, 210061, China
| | - Xing Zhang
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China.
| | - Feng Gao
- School of Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032, China
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112
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Barp CG, Bonaventura D, Assreuy J. NO, ROS, RAS, and PVAT: More Than a Soup of Letters. Front Physiol 2021; 12:640021. [PMID: 33643076 PMCID: PMC7902489 DOI: 10.3389/fphys.2021.640021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022] Open
Abstract
Perivascular adipose tissue (PVAT) has recently entered in the realm of cardiovascular diseases as a putative target for intervention. Notwithstanding its relevance, there is still a long way before the role of PVAT in physiology and pathology is fully understood. The general idea that PVAT anti-contractile effect is beneficial and its pro-contractile effect is harmful is being questioned by several reports. The role of some PVAT important products or systems such as nitric oxide (NO), reactive oxygen species (ROS), and RAS may vary depending on the context, disease, place of production, etc., which adds doubts on how mediators of PVAT anti- and pro-contractile effects are called to action and their final result. This short review will address some points regarding NO, ROS, and RAS in the beneficial and harmful roles of PVAT.
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Affiliation(s)
- Clarissa Germano Barp
- Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniella Bonaventura
- Department of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Jamil Assreuy
- Department of Pharmacology, Centre of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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113
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Foratori-Junior GA, Missio ALT, Orenha ES, de Carvalho Sales-Peres SH. Systemic Condition, Periodontal Status, and Quality of Life in Obese Women During Pregnancy and After Delivery. Int Dent J 2021; 71:420-428. [PMID: 33531144 PMCID: PMC9275293 DOI: 10.1016/j.identj.2020.12.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective To evaluate the systemic condition, periodontal status, and quality of life of obese women during pregnancy and after delivery. Methods This prospective cohort consisted of 60 women examined in the third trimester of pregnancy (32nd-36th gestational week [T1]) and after delivery (T2) and were divided into elevated body mass index (BMI; GO = 30) and normal BMI (GN = 30) according to the World Health Organization. The variables assessed were: (1) gestational weight gain, arterial hypertension (AH), and diabetes mellitus; (2) oral hygiene behaviour (frequency of dental floss using and toothbrushing); (3) probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and dental biofilm; and (4) quality of life (Oral Health Impact Project [OHIP]-14). Analysis of variance (ANOVA), Friedman, Cochran's Q and χ2 tests, and logistic regression model were adopted (P < .05). Results GO showed a higher frequency of AH in T1 (P < .001). Both groups decreased the frequency of dental floss use (P = .013) and toothbrushing (P < .001) and increased the percentage of dental biofilm in T2 (P < .001). GO presented a greater PPD and CAL in T1 and T2 and higher BOP in T1 (P < .001), demonstrating a negative impact in the following dimensions of Oral Health Impact Project-14 during T1 functional limitation (P = .020), physical disability (P = .020), and handicap (P = .021). Conclusion Obese women presented higher prevalence of AH during pregnancy and higher prevalence of periodontitis in both periods. They showed a poor quality of life in T1 regarding functional limitation, physical disability, and handicap.
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Affiliation(s)
- Gerson Aparecido Foratori-Junior
- Department of Pediatric Dentistry, Orthodontics and Public Health. Bauru School of Dentistry, University of São Paulo, Vila Universitária, Bauru, São Paulo, Brazil; University of Integrated Faculties of Ourinhos, Ourinhos, São Paulo, Brazil
| | - Alana Luiza Trenhago Missio
- Department of Pediatric Dentistry, Orthodontics and Public Health. Bauru School of Dentistry, University of São Paulo, Vila Universitária, Bauru, São Paulo, Brazil
| | - Eliel Soares Orenha
- Department of Pediatric Dentistry, Orthodontics and Public Health. Bauru School of Dentistry, University of São Paulo, Vila Universitária, Bauru, São Paulo, Brazil
| | - Silvia Helena de Carvalho Sales-Peres
- Department of Pediatric Dentistry, Orthodontics and Public Health. Bauru School of Dentistry, University of São Paulo, Vila Universitária, Bauru, São Paulo, Brazil.
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114
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Modulation of Short-Chain Fatty Acids as Potential Therapy Method for Type 2 Diabetes Mellitus. ACTA ACUST UNITED AC 2021; 2021:6632266. [PMID: 33488888 PMCID: PMC7801078 DOI: 10.1155/2021/6632266] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 12/25/2022]
Abstract
In recent years, the relationship between intestinal microbiota (IM) and the pathogenesis of type 2 diabetes mellitus (T2DM) has attracted much attention. The beneficial effects of IM on the metabolic phenotype of the host are often considered to be mediated by short-chain fatty acids (SCFAs), mainly acetate, butyrate, and propionate, the small-molecule metabolites derived from microbial fermentation of indigestible carbohydrates. SCFAs not only have an essential role in intestinal health but might also enter the systemic circulation as signaling molecules affecting the host's metabolism. In this review, we summarize the effects of SCFAs on glucose homeostasis and energy homeostasis and the mechanism through which SCFAs regulate the function of metabolically active organs (brain, liver, adipose tissue, skeletal muscle, and pancreas) and discuss the potential role of modulation of SCFAs as a therapeutic method for T2DM.
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115
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Albaker W, El-Ashker S, Baraka MA, El-Tanahi N, Ahsan M, Al-Hariri M. Adiposity and Cardiometabolic Risk assessment Among University Students in Saudi Arabia. Sci Prog 2021; 104:36850421998532. [PMID: 33720790 PMCID: PMC10358492 DOI: 10.1177/0036850421998532] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Overweight and obesity have become a significant health hazard among adolescents on account of quick growth in its occurrence rate and its common comorbidities like cardiometabolic disease (CMD). The aim of this study was to evaluate the prevalence of adiposity and assess the risk of CMD among university students in Eastern Province, Saudi Arabia. A cross-sectional study was conducted during the academic year 2017-2018, in a sample of 310 subjects (127 males; 183 females). The measurements were taken using standardized instruments including Body Mass Index (BMI), Fat Mass Index (FMI), Body Fat Percentage BFP), Mass of Body Fat (MBF), Visceral Fat Area (VFA), Waist Circumference (WC), and Waist to Hip Ratio (WHR). Moreover, CMD risk indicators were calculated by Conicity index (C index), WC, and WHR. The findings showed that the majority was overweight and obese (16.8% and 21.6%, respectively). While evaluating obesity indicators, males were found to have higher adiposity (obese students 34.6%) compared to female students (12.6%; p < 0.001). Additionally, FMI showed that the mean was significantly higher among males (8.65 ± 6.06) compared to females (7.26 ± 3.30; p < 0.019). Analysis of the predictors' indices for cardiometabolic risk score highlighted a significantly higher percentage of WC, WHR, and C index among male students (50, 38.5, 59) compared to females (16.9, 14.2, 34; p < 0.001). Significant positive correlations were observed between C index quartiles and BMI with the other cardiometabolic indices (p < 0.001). This study highlighted a high prevalence of adiposity and CMD risk among university students. The prediction of CMD in early age is quite helpful in preventing adiposity related health issues. Decision makers need to spread awareness about healthy consumption as well as the relationship between physical inactivity and chronic diseases.
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Affiliation(s)
- Waleed Albaker
- College of Medicine, Department of Internal Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Said El-Ashker
- Self-Development Department, Deanship of Preparatory Year, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohamed A. Baraka
- Clinical Pharmacy department, College of Pharmacy, Al Ain University, Al Ain, United Arab Emirates
- Clinical Pharmacy department, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Nagla El-Tanahi
- Self-Development Department, Deanship of Preparatory Year, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammad Ahsan
- College of Applied Medical Sciences, Department of Physical Therapy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammed Al-Hariri
- College of Medicine, Department of Physiology, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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116
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Ye T, Zhang G, Liu H, Shi J, Qiu H, Liu Y, Han F, Hou N. Relationships Between Perivascular Adipose Tissue and Abdominal Aortic Aneurysms. Front Endocrinol (Lausanne) 2021; 12:704845. [PMID: 34194399 PMCID: PMC8236981 DOI: 10.3389/fendo.2021.704845] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Abdominal aortic aneurysms (AAAs) are typically asymptomatic, and there is a high mortality rate associated with aneurysm rupture. AAA pathogenesis involves extracellular matrix degradation, vascular smooth muscle cell phenotype switching, inflammation, and oxidative stress. There is increasing evidence of excessive adipocyte accumulation in ruptured AAA walls. These excessive numbers of adipocytes in the vascular wall have been closely linked with AAA progression. Perivascular adipose tissue (PVAT), a unique type of adipose tissue, can be involved in adipocyte accumulation in the AAA wall. PVAT produces various chemokines and adipocytokines around vessels to maintain vascular homeostasis through paracrine and autocrine mechanisms in normal physiological conditions. Nevertheless, PVAT loses its normal function and promotes the progression of vascular diseases in pathological conditions. There is evidence of significantly reduced AAA diameter in vessel walls of removed PVAT. There is a need to highlight the critical roles of cytokines, cells, and microRNA derived from PVAT in the regulation of AAA development. PVAT may constitute an important therapeutic target for the prevention and treatment of AAAs. In this review, we discuss the relationship between PVAT and AAA development; we also highlight the potential for PVAT-derived factors to serve as a therapeutic target in the treatment of AAAs.
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Affiliation(s)
- Tongtong Ye
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Guangdong Zhang
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hangyu Liu
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, China
| | - Junfeng Shi
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hongyan Qiu
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Yongping Liu
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Fang Han
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Ningning Hou, ; Fang Han,
| | - Ningning Hou
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Ningning Hou, ; Fang Han,
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117
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Dessie G, Ayelign B, Akalu Y, Shibabaw T, Molla MD. Effect of Leptin on Chronic Inflammatory Disorders: Insights to Therapeutic Target to Prevent Further Cardiovascular Complication. Diabetes Metab Syndr Obes 2021; 14:3307-3322. [PMID: 34305402 PMCID: PMC8296717 DOI: 10.2147/dmso.s321311] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/30/2021] [Indexed: 01/08/2023] Open
Abstract
In response to obesity-associated chronic inflammatory disorders, adipose tissue releases a biologically active peptide known as leptin. Leptin activates the secretion of chemical mediators, which contribute to the pathogenesis of chronic inflammatory disorders, such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE) and psoriasis. Conversely, adiposity and obesity are the major aggravating risk factors in the pathogenesis of metabolic syndrome (MetS), including type II diabetes mellitus and obesity-associated hypertension. Elevated level of leptin in obesity-associated hypertension causes an increase in the production of aldosterone, which also results in elevation of arterial blood pressure. Hyperleptinemia is associated with the progress of the atherosclerosis through secretion of pro-inflammatory cytokines, like interleukin 6 (IL-6), tumor necrosis factor α (TNF-α), IL-17, and other cytokines to promote inflammation. The release of those cytokines leads to chronic inflammatory disorders and obesity-associated MetS. Thus, the aberrant leptin level in both MetS and chronic inflammatory disorders also leads to the complication of cardiovascular diseases (CVD). Therapeutic target of leptin regarding its pro-inflammatory effect and dysregulated sympathetic nervous system activity may prevent further cardiovascular complication. This review mainly assesses the mechanism of leptin on the pathogenesis and further cardiovascular risk complication of chronic inflammatory disorders.
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Affiliation(s)
- Gashaw Dessie
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Correspondence: Gashaw Dessie Tel +251 975152796 Email
| | - Birhanu Ayelign
- Department of Immunology and Molecular Biology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Yonas Akalu
- Department of Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tewodros Shibabaw
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Meseret Derbew Molla
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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118
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Wang J, Polaki V, Chen S, Bihl JC. Exercise Improves Endothelial Function Associated with Alleviated Inflammation and Oxidative Stress of Perivascular Adipose Tissue in Type 2 Diabetic Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8830537. [PMID: 33425218 PMCID: PMC7781720 DOI: 10.1155/2020/8830537] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/03/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022]
Abstract
Perivascular adipose tissue (PVAT), a type of adipose tissue that surrounds the blood vessels, has been considered an active component of the blood vessel walls and involved in vascular homeostasis. Recent evidence shows that increased inflammation and oxidative stress in PVAT contribute to endothelial dysfunction in type 2 diabetes (T2D). Exercise is an important nonpharmacological approach for vascular diseases. However, there is limited information regarding whether the beneficial effects of exercise on vascular function is related to the PVAT status. In this study, we investigated whether exercise can decrease oxidative stress and inflammation of PVAT and promote the improvement of endothelial function in a T2D mouse model. Diabetic db/db (5-week old) mice performed treadmill exercise (10 m/min) or keep sedentary for 8 weeks. Body weight, fasting blood glucose levels, glucose, and insulin tolerance were determined. The cytokines (IL-6, IL-10, IFN-γ, and TNF-a) and adiponectin levels, macrophage polarization and adipocyte type in PVAT, oxidative stress, and nitric oxide (NO) expression in the vascular wall were evaluated. The adhesion ability of primary aorta endothelial cells was analyzed. Our data showed that (1) diabetic db/db mice had increased body weight and fasting blood glucose level, compromised glucose tolerance, and insulin sensitivity, which were decreased/improved by exercise intervention. (2) Exercise intervention increased the percentage of multilocular brown adipocytes, promoted M1 to M2 macrophage polarization, associating with an increase of adiponectin and IL-10 levels and decrease of IFN-γ, IL-6, and TNF-a levels in PVAT. (3) Exercise decreased superoxide production in PVAT and the vascular wall of diabetic mice, accompanied with increased NO level. (4) The adhesion ability of aorta endothelial cells to leukocytes was decreased in exercised db/db mice, accompanied by decreased intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) expressions. Of interesting, coculture with PVAT-culture medium from exercised db/db mice could also reduce ICAM-1 and VCAM-1 expressions in primary endothelial cells. In conclusion, our data suggest that exercise improved endothelial function by attenuating the inflammation and oxidative stress in PVAT.
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Affiliation(s)
- Jinju Wang
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Venkata Polaki
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Shuzhen Chen
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Ji C. Bihl
- Department of Biomedical Sciences, Joan C Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
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119
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Chao X, Guo L, Wang Q, Huang W, Liu M, Luan K, Jiang J, Lin S, Nie Q, Luo W, Zhang X, Luo Q. miR-429-3p/ LPIN1 Axis Promotes Chicken Abdominal Fat Deposition via PPARγ Pathway. Front Cell Dev Biol 2020; 8:595637. [PMID: 33425901 PMCID: PMC7793751 DOI: 10.3389/fcell.2020.595637] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
To explore the regulatory mechanism of abdominal fat deposition in broilers, 100-day-old Sanhuang chickens (n = 12) were divided into high-fat and low-fat groups, according to the abdominal fat ratio size. Total RNA isolated from the 12 abdominal fat tissues was used for miRNA and mRNA sequencing. Results of miRNA and mRNA sequencing revealed that miR-429-3p was highly expressed in high-fat chicken whereas LPIN1 expression was downregulated. Further, we determined that miR-429-3p promoted preadipocyte proliferation and differentiation, whereas LPIN1 exerted an opposite effect. Notably, we found that the miR-429-3p/LPIN1 axis facilitated PPARγ pathway activation, which is closely associated with the progression of adipogenesis. In conclusion, our results provide evidence that a novel miR-429-3p/LPIN1 axis is involved in the regulation of adipogenesis, which may have a guiding role in the improvement of breeding for abdominal fat traits in broiler chickens.
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Affiliation(s)
- Xiaohuan Chao
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Lijin Guo
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qi Wang
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Weiling Huang
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Manqing Liu
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Kang Luan
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jinqi Jiang
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Shudai Lin
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qinghua Nie
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Wen Luo
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Xiquan Zhang
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qingbin Luo
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China.,College of Animal Science, South China Agricultural University, Guangzhou, China
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120
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Wojno O, Czarzasta K, Puchalska L, Kowalczyk M, Cudnoch-Jedrzejewska A. Central interaction between the apelinergic and vasopressinergic systems in the regulation of the haemodynamic parameters in rats maintained on a high-fat diet. Clin Exp Pharmacol Physiol 2020; 47:1902-1911. [PMID: 32687615 DOI: 10.1111/1440-1681.13381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 11/29/2022]
Abstract
A high-fat diet can affect the central activity of the apelinergic and vasopressinergic systems, which can have a significant impact on cardiovascular regulation. The aim of the study was to investigate the role of the central interaction between apelin and vasopressin in the regulation of the cardiovascular system in Sprague Dawley rats maintained on a normal-fat diet (NFD) or on a high-fat diet (HFD). The animals were instrumented with a cannula implanted into the left cerebral ventricle for intracerebroventricular (ICV) infusions of saline (0.9% NaCl), apelin-13 (APLN-13), V1a receptor antagonist (V1aRANT) APJ receptor antagonist (F13A), vasopressin (AVP); and with a catheter placed within the femoral artery for mean arterial blood pressure and heart rate monitoring. Blood, the hypothalamus and the medulla oblongata were collected for biochemical analysis. The hypertensive effect of APLN-13 was blocked by a prior ICV infusion of V1aRANT, only in the NFD rats. However, the hypertensive effect of AVP was blocked by the prior ICV infusion of F13A in both the NFD and HFD rats. A HFD caused an increase in the protein level of APJ and V1a receptors, both in the hypothalamus and the medulla oblongata. This study confirms the presence of an interaction between both peptides in the central regulation of the cardiovascular system in rats on a NFD or a HFD.
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Affiliation(s)
- Olena Wojno
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Czarzasta
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Liana Puchalska
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Kowalczyk
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Cudnoch-Jedrzejewska
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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121
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AlZaim I, Hammoud SH, Al-Koussa H, Ghazi A, Eid AH, El-Yazbi AF. Adipose Tissue Immunomodulation: A Novel Therapeutic Approach in Cardiovascular and Metabolic Diseases. Front Cardiovasc Med 2020; 7:602088. [PMID: 33282920 PMCID: PMC7705180 DOI: 10.3389/fcvm.2020.602088] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue is a critical regulator of systemic metabolism and bodily homeostasis as it secretes a myriad of adipokines, including inflammatory and anti-inflammatory cytokines. As the main storage pool of lipids, subcutaneous and visceral adipose tissues undergo marked hypertrophy and hyperplasia in response to nutritional excess leading to hypoxia, adipokine dysregulation, and subsequent low-grade inflammation that is characterized by increased infiltration and activation of innate and adaptive immune cells. The specific localization, physiology, susceptibility to inflammation and the heterogeneity of the inflammatory cell population of each adipose depot are unique and thus dictate the possible complications of adipose tissue chronic inflammation. Several lines of evidence link visceral and particularly perivascular, pericardial, and perirenal adipose tissue inflammation to the development of metabolic syndrome, insulin resistance, type 2 diabetes and cardiovascular diseases. In addition to the implication of the immune system in the regulation of adipose tissue function, adipose tissue immune components are pivotal in detrimental or otherwise favorable adipose tissue remodeling and thermogenesis. Adipose tissue resident and infiltrating immune cells undergo metabolic and morphological adaptation based on the systemic energy status and thus a better comprehension of the metabolic regulation of immune cells in adipose tissues is pivotal to address complications of chronic adipose tissue inflammation. In this review, we discuss the role of adipose innate and adaptive immune cells across various physiological and pathophysiological states that pertain to the development or progression of cardiovascular diseases associated with metabolic disorders. Understanding such mechanisms allows for the exploitation of the adipose tissue-immune system crosstalk, exploring how the adipose immune system might be targeted as a strategy to treat cardiovascular derangements associated with metabolic dysfunctions.
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Affiliation(s)
- Ibrahim AlZaim
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Safaa H Hammoud
- Department of Pharmacology and Therapeutics, Beirut Arab University, Beirut, Lebanon
| | - Houssam Al-Koussa
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Alaa Ghazi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Pharmacology and Therapeutics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Department of Basic Medical Sciences, College of Medicine, Qatar University, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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122
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Zhang HY, Tian JX, Lian FM, Li M, Liu WK, Zhen Z, Liao JQ, Tong XL. Therapeutic mechanisms of traditional Chinese medicine to improve metabolic diseases via the gut microbiota. Biomed Pharmacother 2020; 133:110857. [PMID: 33197760 DOI: 10.1016/j.biopha.2020.110857] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/01/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022] Open
Abstract
Metabolic diseases such as obesity, type 2 diabetes mellitus, and hyperlipidemia are associated with the dysfunction of gut microbiota. Traditional Chinese medicines (TCMs) have shown considerable effects in the treatment of metabolic disorders by regulating the gut microbiota. However, the underlying mechanisms are unclear. Studies have shown that TCMs significantly affect glucose and lipid metabolism by modulating the gut microbiota, particularly mucin-degrading bacteria, bacteria with anti-inflammatory properties, lipopolysaccharide- and short-chain fatty acid (SCFA)-producing bacteria, and bacteria with bile-salt hydrolase activity. In this review, we explored potential mechanisms by which TCM improved metabolic disorders via regulating gut microbiota composition and functional structure. In particular, we focused on the protection of the intestinal barrier function, modulation of metabolic endotoxemia and inflammatory responses, regulation of the effects of SCFAs, modulation of the gut-brain axis, and regulation of bile acid metabolism and tryptophan metabolism as therapeutic mechanisms of TCMs in metabolic diseases.
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Affiliation(s)
- Hai-Yu Zhang
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China; Graduate College, Beijing University of Traditional Chinese Medicine, Beijing, 100029, China
| | - Jia-Xing Tian
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
| | - Feng-Mei Lian
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Min Li
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Wen-Ke Liu
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Zhong Zhen
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Jiang-Quan Liao
- Department of National Integrated Traditional and Western Medicine Center for Cardiovascular Disease, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Xiao-Lin Tong
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
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123
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The bile acid induced hepatokine orosomucoid suppresses adipocyte differentiation. Biochem Biophys Res Commun 2020; 534:864-870. [PMID: 33168190 DOI: 10.1016/j.bbrc.2020.10.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 10/27/2020] [Indexed: 01/06/2023]
Abstract
Bile acids have recently emerged as key metabolic hormones with beneficial impacts in multiple metabolic diseases. We previously discovered that hepatic bile acid overload distally modulates glucose and fatty acid metabolism in adipose tissues to exert anti-obesity effects. However, the detailed mechanisms that explain the salutary effects of serum bile acid elevation remain unclear. Here, proteomic profiling identified a new hepatokine, Orosomucoid (ORM) that governs liver-adipose tissue crosstalk. Hepatic ORMs were highly induced by both genetic and dietary bile acid overload. To address the direct metabolic effects of ORM, purified ORM proteins were administered during adipogenic differentiation of 3T3-L1 cells and mouse stromal vascular fibroblasts. ORM suppressed adipocyte differentiation and strongly inhibited gene expression of adipogenic transcription factors such as C/EBPβ, KLF5, C/EBPα, and PPARγ. Taken together, our data clearly suggest that bile acid-induced ORM secretion from the liver blocks adipocyte differentiation, potentially linked to anti-obesity effect of bile acids.
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Xu J, Li M, Zhang Y, Chu S, Huo Y, Zhao J, Wan C. Huangjinya Black Tea Alleviates Obesity and Insulin Resistance via Modulating Fecal Metabolome in High-Fat Diet-Fed Mice. Mol Nutr Food Res 2020; 64:e2000353. [PMID: 33002297 DOI: 10.1002/mnfr.202000353] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 09/04/2020] [Indexed: 02/05/2023]
Abstract
SCOPE Huangjinya is a light-sensitive tea mutant containing low levels of tea polyphenols. Currently, most studies focused on characteristics formation, free amino acid metabolism and phytochemical purification. The biological activity of Huangjinya black tea (HJBT) on metabolic syndrome regarding fecal metabolome modulation is unavailable and is studied herein. METHODS AND RESULTS High-fat diet (HFD)-fed mice are treated with HJBT for 9 weeks, various metabolic biomarkers and fecal metabolites are determined. HJBT reduces adipogenic and lipogenic gene expression, enhances lipolytic gene expression, decreases adipocyte expansion, and prevents the development of obesity. HJBT reduces lipogenic gene expression, increases fatty acid oxidation-related genes expression, which alleviates liver steatosis. HJBT enhances glucose/insulin tolerance, increases insulin/Akt signaling, attenuates hyperlipidemia and hyperglycemia, prevents the onset of insulin resistance. HJBT modulates bile acid metabolism, promotes secondary/primary bile acid ratio; increases short-chain fatty acids production, promotes saturated and polyunsaturated fatty acids content; reduces carnitines and phosphocholines, but increases myo-inositol content; decreases branched-chain and aromatic amino acids content; increases the metabolite content related to pentose phosphate pathway. CONCLUSION This study reported the association between fecal metabolome modulation and metabolism improvement due to HJBT administration, proposes HJBT as a dietary intervention for preventing obesity and metabolic disorders.
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Affiliation(s)
- Jialin Xu
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Mingxi Li
- Research Center of Tea and Tea Culture, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
| | - Yi Zhang
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Suo Chu
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Yan Huo
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Jie Zhao
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Chunpeng Wan
- Research Center of Tea and Tea Culture, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
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Morais AL, Rijo P, Batanero Hernán MB, Nicolai M. Biomolecules and Electrochemical Tools in Chronic Non-Communicable Disease Surveillance: A Systematic Review. BIOSENSORS-BASEL 2020; 10:bios10090121. [PMID: 32927739 PMCID: PMC7560036 DOI: 10.3390/bios10090121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/28/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022]
Abstract
Over recent three decades, the electrochemical techniques have become widely used in biological identification and detection, because it presents optimum features for efficient and sensitive molecular detection of organic compounds, being able to trace quantities with a minimum of reagents and sample manipulation. Given these special features, electrochemical techniques are regularly exploited in disease diagnosis and monitoring. Specifically, amperometric electrochemical analysis has proven to be quite suitable for the detection of physiological biomarkers in monitoring health conditions, as well as toward the control of reactive oxygen species released in the course of oxidative burst during inflammatory events. Besides, electrochemical detection techniques involve a simple and swift assessment that provides a low detection-limit for most of the molecules enclosed biological fluids and related to non-transmittable morbidities.
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Affiliation(s)
- Ana Lúcia Morais
- CBIOS—Universidade Lusófona Research Centre for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisbon, Portugal; (A.L.M.); (P.R.)
- Department of Biomedical Sciences, Faculty of Pharmacy, University of Alcalá, Ctra. A2, Km 33.600–Campus Universitario, 28871 Alcalá de Henares, Spain
| | - Patrícia Rijo
- CBIOS—Universidade Lusófona Research Centre for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisbon, Portugal; (A.L.M.); (P.R.)
- iMed.ULisboa-Research Institute for Medicines and Pharmaceutical Sciences, Universidade de Lisboa—Faculdade de Farmácia, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - María Belén Batanero Hernán
- Department of Organic & Inorganic Chemistry, Faculty of Pharmacy, University of Alcalá, 28805 Madrid, Spain
- Correspondence: (M.B.B.H.); (M.N.)
| | - Marisa Nicolai
- CBIOS—Universidade Lusófona Research Centre for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisbon, Portugal; (A.L.M.); (P.R.)
- Correspondence: (M.B.B.H.); (M.N.)
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Type 2 Diabetes Mellitus Associated with Obesity (Diabesity). The Central Role of Gut Microbiota and Its Translational Applications. Nutrients 2020; 12:nu12092749. [PMID: 32917030 PMCID: PMC7551493 DOI: 10.3390/nu12092749] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023] Open
Abstract
Obesity is a condition of rising prevalence worldwide, with important socioeconomic implications, being considered as a growing public health concern. Frequently, obesity brings other complications in addition to itself—like Type 2 Diabetes Mellitus (T2DM)—sharing origin, risk factors and pathophysiological mechanisms. In this context, some authors have decided to include both conditions as a unique entity known as “diabesity”. In fact, understanding diabesity as a single disease is possible to maximise the benefits from therapies received in these patients. Gut microbiota plays a key role in individual’s health, and their alterations, either in its composition or derived products are related to a wide range of metabolic disorders like T2DM and obesity. The present work aims to collect the different changes reported in gut microbiota in patients with T2DM associated with obesity and their possible role in the onset, development, and establishment of the disease. Moreover, current research lines to modulate gut microbiota and the potential clinical translation derived from the knowledge of this system will also be reviewed, which may provide support for a better clinical management of such a complex condition.
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Saxton SN, Heagerty AM, Withers SB. Perivascular adipose tissue: An immune cell metropolis. Exp Physiol 2020; 105:1440-1443. [PMID: 32648363 DOI: 10.1113/ep087872] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022]
Abstract
NEW FINDINGS What is the topic of this review? The review discusses how eosinophils can contribute to the function of perivascular adipose tissue and explores the mechanisms involved. What advances does it highlight? Understanding the communication between the cell populations that constitute perivascular adipose tissue function is important for exploring therapeutic options in the treatment of obesity-related cardiovascular complications. This article highlights that eosinophils are able to contribute directly to healthy perivascular adipose tissue function. These immune cells contribute to adrenergic signalling and nitric oxide- and adiponectin-dependent mechanisms in perivascular adipose tissue. ABSTRACT Perivascular adipose tissue is a heterogeneous tissue that surrounds most blood vessels in the body. This review focuses on the contribution of eosinophils located within the adipose tissue to vascular contractility. A high-fat diet reduces the number of these immune cells within perivascular adipose tissue, and this loss is linked to an increase in vascular contractility and hypertension. We explored the mechanisms by which eosinophils contribute to this function using genetically modified mice, ex vivo assessment of contractility and pharmacological tools. We found that eosinophils contribute to adrenergic signalling and nitric oxide- and adiponectin-dependent mechanisms in perivascular adipose tissue. It is now important to explore whether manipulation of these pathways in obesity can alleviate cardiovascular complications, in order to determine whether eosinophils are a valid target for obesity-related disease.
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Affiliation(s)
- S N Saxton
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - A M Heagerty
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - S B Withers
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK.,School of Science, Engineering and Environment, University of Salford, Salford, UK.,Salford Royal NHS Foundation Trust, Salford Royal Hospitals NHS Foundation Trust, Salford, UK
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Passaglia P, Faim FDL, Batalhão ME, Bendhack LM, Antunes-Rodrigues J, Ulloa L, Kanashiro A, Carnio EC. Central angiotensin-(1-7) attenuates systemic inflammation via activation of sympathetic signaling in endotoxemic rats. Brain Behav Immun 2020; 88:606-618. [PMID: 32335195 PMCID: PMC7643008 DOI: 10.1016/j.bbi.2020.04.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023] Open
Abstract
Angiotensin-(1-7) [Ang-(1-7)] is an angiotensin-derived neuropeptide with potential anti-hypertensive and anti-inflammatory properties. However, a possible action of Ang-(1-7) in neuroimmune interactions to regulate inflammatory response has not been explored. Thus, the aim of this study was to determine whether the intracerebroventricular (i.c.v.) administration of Ang-(1-7) can modulate systemic inflammation via sympathetic efferent circuits. Wistar male rats received systemic administration of lipopolysaccharide (LPS) (1.5 mg/Kg). Ang-(1-7) (0.3 nmol in 2 µL) promoted the release of splenic norepinephrine and attenuated tumor necrosis factor (TNF) and nitric oxide (NO), but increased interleukin-10 (IL-10), levels in the serum, spleen, and liver in endotoxemic rats. Furthermore, 6-hydroxydopamine-induced chemical sympathectomy (100 mg/Kg, intravenous) or i.c.v. administration of Mas receptor antagonist A779 (3 nmol in 2 µL) abolished the anti-inflammatory effects of central Ang-(1-7) injection. Moreover, this treatment did not alter the plasmatic LPS-induced corticosterone and vasopressin. The administration of Ang-(1-7) reverted the low resistance in response to catecholamines of rings of thoracic aorta isolated from endotoxemic rats, treated or not, with this peptide by a mechanism dependent on the regulation of NO released from perivascular adipose tissue. Together, our results indicate that Ang-(1-7) regulates systemic inflammation and vascular hyporesponsiveness in endotoxemia via activation of a central Mas receptors/sympathetic circuits/norepinephrine axis and provide novel mechanistic insights into the anti-inflammatory Ang-(1-7) properties.
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Affiliation(s)
- Patrícia Passaglia
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Felipe de Lima Faim
- Department of Physiology, Ribeirão Preto Medical School – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcelo Eduardo Batalhão
- Department of General and Specialized Nursing Ribeirão Preto, College of Nursing – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lusiane Maria Bendhack
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, Ribeirão Preto - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - José Antunes-Rodrigues
- Department of Physiology, Ribeirão Preto Medical School – University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luis Ulloa
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Alexandre Kanashiro
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Evelin Capellari Carnio
- Department of Physiology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil; Department of General and Specialized Nursing Ribeirão Preto, College of Nursing - University of São Paulo, Ribeirão Preto, SP, Brazil.
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Si S, Tewara MA, Li Y, Li W, Chen X, Yuan T, Liu C, Li J, Wang B, Li H, Hou L, Wang Q, Xue F. Causal Pathways from Body Components and Regional Fat to Extensive Metabolic Phenotypes: A Mendelian Randomization Study. Obesity (Silver Spring) 2020; 28:1536-1549. [PMID: 32935532 DOI: 10.1002/oby.22857] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the causal effects and pathways from body components to extensive metabolic phenotypes. METHODS Summarized data including 24 metabolic phenotypes from 10 consortiums were used to perform univariate, multivariable, and bidirectional Mendelian randomization analysis based on the network design. RESULTS For metabolically related biomarkers, a 1-SD increase in body fat mass (BFM) was robustly associated with increased fasting insulin, systolic blood pressure, diastolic blood pressure, and urate and decreased high-density lipoprotein cholesterol levels. For metabolically related diseases, the odds ratios and 95% CIs of a 1-SD increase in BFM were 1.76 (1.37 to 2.25) for type 2 diabetes mellitus (T2DM), 1.11 (1.09 to 1.13) for hypertension, 1.40 (1.25 to 1.57) for coronary artery disease, 1.41 (1.25 to 1.59) for myocardial infarction, 1.25 (1.12 to 1.40) for ischemic stroke, and 1.62 (1.02 to 2.57) for gout. The effects of body fat on diseases were mediated by extensive intermediate biomarkers, including blood pressure, lipids, glycemic traits, and urate. Regional fats had a similar effect with body fat in both absolute and relative scales, whereas fat-free components increased only the risk of T2DM 1.73 (1.11 to 2.68) and chronic kidney disease 1.51 (1.11 to 2.06). CONCLUSIONS Several potential pathways were found and confirmed the tremendous benefits of fat-lowering measures, including lowering of various regional fats. Future policies or interventions should focus more on the role of body fat.
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Affiliation(s)
- Shucheng Si
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Marlvin Anemey Tewara
- Institute for Medical Dataology, Shandong University, Jinan, People's Republic of China
| | - Yunxia Li
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Wenchao Li
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Xiaolu Chen
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Tonghui Yuan
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Congcong Liu
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Jiqing Li
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Bojie Wang
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Hongkai Li
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
- Institute for Medical Dataology, Shandong University, Jinan, People's Republic of China
| | - Lei Hou
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Qing Wang
- Institute for Medical Dataology, Shandong University, Jinan, People's Republic of China
| | - Fuzhong Xue
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
- Institute for Medical Dataology, Shandong University, Jinan, People's Republic of China
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130
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Arcidiacono B, Chiefari E, Foryst-Ludwig A, Currò G, Navarra G, Brunetti FS, Mirabelli M, Corigliano DM, Kintscher U, Britti D, Mollace V, Foti DP, Goldfine ID, Brunetti A. Obesity-related hypoxia via miR-128 decreases insulin-receptor expression in human and mouse adipose tissue promoting systemic insulin resistance. EBioMedicine 2020; 59:102912. [PMID: 32739259 PMCID: PMC7502675 DOI: 10.1016/j.ebiom.2020.102912] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/05/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
Background Insulin resistance in visceral adipose tissue (VAT), skeletal muscle and liver is a prominent feature of most patients with obesity. How this association arises remains poorly understood. The objective of this study was to demonstrate that the decrease in insulin receptor (INSR) expression and insulin signaling in VAT from obese individuals is an early molecular manifestation that might play a crucial role in the cascade of events leading to systemic insulin resistance. Methods To clarify the role of INSR and insulin signaling in adipose tissue dysfunction in obesity, we first measured INSR expression in VAT samples from normal-weight subjects and patients with different degrees of obesity. We complemented these studies with experiments on high-fat diet (HFD)-induced obese mice, and in human and murine adipocyte cultures, in both normoxic and hypoxic conditions. Findings An inverse correlation was observed between increasing body mass index and decreasing INSR expression in VAT of obese humans. Our results indicate that VAT-specific downregulation of INSR is an early event in obesity-related adipose cell dysfunction, which increases systemic insulin resistance in both obese humans and mice. We also provide evidence that obesity-related hypoxia in VAT plays a determinant role in this scenario by decreasing INSR mRNA stability. This decreased stability is through the activation of a miRNA (miR-128) that downregulates INSR expression in adipocytes. Interpretation We present a novel pathogenic mechanism of reduced INSR expression and insulin signaling in adipocytes. Our data provide a new explanation linking obesity with systemic insulin resistance. Funding This work was partly supported by a grant from Nutramed (PON 03PE000_78_1) and by the European Commission (FESR FSE 2014-2020 and Regione Calabria).
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Affiliation(s)
- Biagio Arcidiacono
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Eusebio Chiefari
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Anna Foryst-Ludwig
- Institute of Pharmacology, Center for Cardiovascular Research, Charité Universitätsmedizin, 10115 Berlin, Germany
| | - Giuseppe Currò
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Giuseppe Navarra
- Department of Human Pathology of Adult and Evolutive Age, University Hospital of Messina, 98122 Messina, Italy
| | - Francesco S Brunetti
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Maria Mirabelli
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Domenica M Corigliano
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Ulrich Kintscher
- Institute of Pharmacology, Center for Cardiovascular Research, Charité Universitätsmedizin, 10115 Berlin, Germany
| | - Domenico Britti
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Daniela P Foti
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy
| | - Ira D Goldfine
- Department of Medicine, University of California San Francisco, 94143 San Francisco, USA
| | - Antonio Brunetti
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Viale Europa, 88100 Catanzaro, Italy.
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Targeting perivascular and epicardial adipose tissue inflammation: therapeutic opportunities for cardiovascular disease. Clin Sci (Lond) 2020; 134:827-851. [PMID: 32271386 DOI: 10.1042/cs20190227] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/20/2020] [Accepted: 03/30/2020] [Indexed: 02/07/2023]
Abstract
Major shifts in human lifestyle and dietary habits toward sedentary behavior and refined food intake triggered steep increase in the incidence of metabolic disorders including obesity and Type 2 diabetes. Patients with metabolic disease are at a high risk of cardiovascular complications ranging from microvascular dysfunction to cardiometabolic syndromes including heart failure. Despite significant advances in the standards of care for obese and diabetic patients, current therapeutic approaches are not always successful in averting the accompanying cardiovascular deterioration. There is a strong relationship between adipose inflammation seen in metabolic disorders and detrimental changes in cardiovascular structure and function. The particular importance of epicardial and perivascular adipose pools emerged as main modulators of the physiology or pathology of heart and blood vessels. Here, we review the peculiarities of these two fat depots in terms of their origin, function, and pathological changes during metabolic deterioration. We highlight the rationale for pharmacological targeting of the perivascular and epicardial adipose tissue or associated signaling pathways as potential disease modifying approaches in cardiometabolic syndromes.
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Cardiac Transcriptome Analysis Reveals Nr4a1 Mediated Glucose Metabolism Dysregulation in Response to High-Fat Diet. Genes (Basel) 2020; 11:genes11070720. [PMID: 32610475 PMCID: PMC7397175 DOI: 10.3390/genes11070720] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 12/23/2022] Open
Abstract
Obesity is associated with an increased risk of developing cardiovascular disease (CVD), with limited alterations in cardiac genomic characteristics known. Cardiac transcriptome analysis was conducted to profile gene signatures in high-fat diet (HFD)-induced obese mice. A total of 184 differentially expressed genes (DEGs) were identified between groups. Based on the gene ontology (GO) term enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of DEGs, the critical role of closely interlocked glucose metabolism was determined in HFD-induced cardiac remodeling DEGs, including Nr4a1, Fgf21, Slc2a3, Pck1, Gck, Hmgcs2, and Bpgm. Subsequently, the expression levels of these DEGs were evaluated in both the myocardium and palmitic acid (PA)-stimulated H9c2 cardiomyocytes using qPCR. Nr4a1 was highlighted according to its overexpression resulting from the HFD. Additionally, inhibition of Nr4a1 by siRNA reversed the PA-induced altered expression of glucose metabolism-related DEGs and hexokinase 2 (HK2), the rate-limiting enzyme in glycolysis, thus indicating that Nr4a1 could modulate glucose metabolism homeostasis by regulating the expression of key enzymes in glycolysis, which may subsequently influence cardiac function in obesity. Overall, we provide a comprehensive understanding of the myocardium transcript molecular framework influenced by HFD and propose Nr4a1 as a key glucose metabolism target in obesity-induced CVD.
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133
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Perivascular adipose tissue in age-related vascular disease. Ageing Res Rev 2020; 59:101040. [PMID: 32112889 DOI: 10.1016/j.arr.2020.101040] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/31/2020] [Accepted: 02/23/2020] [Indexed: 12/16/2022]
Abstract
Perivascular adipose tissue (PVAT), a crucial regulator of vascular homeostasis, is actively involved in vascular dysfunction during aging. PVAT releases various adipocytokines, chemokines and growth factors. In an endocrine and paracrine manner PVAT-derived factors regulate vascular signalling and inflammation modulating functions of adjacent layers of the vasculature. Pathophysiological conditions such as obesity, type 2 diabetes, vascular injury and aging can cause PVAT dysfunction, leading to vascular endothelial and smooth muscle cell dysfunctions. We and others have suggested that PVAT is involved in the inflammatory response of the vascular wall in diet induced obesity animal models leading to vascular dysfunction due to disappearance of the physiological anticontractile effect. Previous studies confirm a crucial role for pinpointed PVAT inflammation in promoting vascular oxidative stress and inflammation in aging, enhancing the risk for development of cardiovascular disease. In this review, we discuss several studies and mechanisms linking PVAT to age-related vascular diseases. An overview of the suggested roles played by PVAT in different disorders associated with the vasculature such as endothelial dysfunction, neointimal formation, aneurysm, vascular contractility and stiffness will be performed. PVAT may be considered a potential target for therapeutic intervention in age-related vascular disease.
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134
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Sun F, Zhao Z, Li Q, Zhou X, Li Y, Zhang H, Yan Z, He H, Ke Z, Gao Y, Li F, Tong W, Zhu Z. Detrimental Effect of C-Reactive Protein on the Cardiometabolic Cells and Its Rectifying by Metabolic Surgery in Obese Diabetic Patients. Diabetes Metab Syndr Obes 2020; 13:1349-1358. [PMID: 32425567 PMCID: PMC7195578 DOI: 10.2147/dmso.s250294] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/03/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND High-sensitivity C-reactive protein (hs-CRP) has been regarded as a biomarker of low-degree inflammation in illness; however, whether CRP exerts its pathogenic effect on the cardiometabolic system remains unknown. Aside from the beneficial effects of metabolic surgery on cardiometabolic system, its impact on inflammation still worth examining. Thus, this study aims to investigate the effect of CRP on adipose and vascular cells, and their responses to metabolic surgery in obese diabetic patients. PATIENTS AND METHODS The expression of CRP and RAS- and ERK-related factors in the adipocytes and VSMCs were measured. Obese patients with type 2 diabetes who underwent metabolic surgery were followed up for 2 years thereafter. Laboratory tests, which included serum hs-CRP levels and visceral fat thickness (VFT), were obtained before and after surgery. RESULTS CRP administration significantly and dose-dependently increased the intracellular-free calcium concentration ([Ca2+]i) in cultured adipocytes and in the VSMCs. CRP administration significantly increased ACE, Ang II, AT1R and p-ERK expressions, but reduced ACE2 expression in both the adipocytes and VSMCs. Clinical study showed that VFT was closely associated with serum hs-CRP. Furthermore, VFT and serum hs-CRP were found to be highly associated with blood pressure. Finally, metabolic surgery remarkably decreased blood pressure, visceral fat and serum hs-CRP levels. CONCLUSION CRP has a detrimental effect on cardiometabolic cells, aside from functioning merely as a biomarker. Serum hs-CRP levels are highly associated with hypertension and visceral obesity, which can be antagonized by metabolic surgery in obese diabetic patients.
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Affiliation(s)
- Fang Sun
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Zhigang Zhao
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Qiang Li
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Xunmei Zhou
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Yingsha Li
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Hexuan Zhang
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Zhencheng Yan
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Hongbo He
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
| | - Zhigang Ke
- Department of General Surgery, Daping Hospital, Third Military Medical University, Chongqing400042, People’s Republic of China
| | - Yu Gao
- Department of General Surgery, Daping Hospital, Third Military Medical University, Chongqing400042, People’s Republic of China
| | - Fan Li
- Department of General Surgery, Daping Hospital, Third Military Medical University, Chongqing400042, People’s Republic of China
| | - Weidong Tong
- Department of General Surgery, Daping Hospital, Third Military Medical University, Chongqing400042, People’s Republic of China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Center for Hypertension and Metabolic Diseases, Chongqing Institute of Hypertension, Chongqing400042, People’s Republic of China
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Turaihi AH, Serné EH, Molthoff CFM, Koning JJ, Knol J, Niessen HW, Goumans MJTH, van Poelgeest EM, Yudkin JS, Smulders YM, Jimenez CR, van Hinsbergh VWM, Eringa EC. Perivascular Adipose Tissue Controls Insulin-Stimulated Perfusion, Mitochondrial Protein Expression, and Glucose Uptake in Muscle Through Adipomuscular Arterioles. Diabetes 2020; 69:603-613. [PMID: 32005705 DOI: 10.2337/db18-1066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 01/24/2020] [Indexed: 11/13/2022]
Abstract
Insulin-mediated microvascular recruitment (IMVR) regulates delivery of insulin and glucose to insulin-sensitive tissues. We have previously proposed that perivascular adipose tissue (PVAT) controls vascular function through outside-to-inside communication and through vessel-to-vessel, or "vasocrine," signaling. However, direct experimental evidence supporting a role of local PVAT in regulating IMVR and insulin sensitivity in vivo is lacking. Here, we studied muscles with and without PVAT in mice using combined contrast-enhanced ultrasonography and intravital microscopy to measure IMVR and gracilis artery diameter at baseline and during the hyperinsulinemic-euglycemic clamp. We show, using microsurgical removal of PVAT from the muscle microcirculation, that local PVAT depots regulate insulin-stimulated muscle perfusion and glucose uptake in vivo. We discovered direct microvascular connections between PVAT and the distal muscle microcirculation, or adipomuscular arterioles, the removal of which abolished IMVR. Local removal of intramuscular PVAT altered protein clusters in the connected muscle, including upregulation of a cluster featuring Hsp90ab1 and Hsp70 and downregulation of a cluster of mitochondrial protein components of complexes III, IV, and V. These data highlight the importance of PVAT in vascular and metabolic physiology and are likely relevant for obesity and diabetes.
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Affiliation(s)
- Alexander H Turaihi
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Erik H Serné
- Department of Internal Medicine, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Carla F M Molthoff
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jasper J Koning
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jaco Knol
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Hans W Niessen
- Department of Pathology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Marie Jose T H Goumans
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Erik M van Poelgeest
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - John S Yudkin
- Institute of Cardiovascular Science, Division of Medicine, University College London, London, U.K
| | - Yvo M Smulders
- Department of Internal Medicine, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Connie R Jimenez
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Victor W M van Hinsbergh
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Etto C Eringa
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, the Netherlands
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Bilovol OM, Knyazkova II, Al-Travneh OV, Bogun MV, Berezin AE. Altered adipocytokine profile predicts early stage of left ventricular remodeling in hypertensive patients with type 2 diabetes mellitus. Diabetes Metab Syndr 2020; 14:109-116. [PMID: 32032896 DOI: 10.1016/j.dsx.2020.01.011] [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: 12/30/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIM Adipocytokine dysfunction is considered as causative factor of target organ damage in metabolic disease. The aim of the study was to investigate whether altered adipocytokine profile predicts left ventricular (LV) remodeling in hypertensive patients with type 2 diabetes mellitus (T2DM). METHODS A total of 186 patients (125 hypertensive and 61 non-hypertensive individuals) with established T2DM and 20 healthy volunteers were enrolled in the study. LV remodeling was determined at baseline. Concentrations of adipocytokines were measured with ELISA at baseline. RESULTS The most important predictors of LV hypertrophy in T2DM patients were serum levels of omentin-1 (B-coefficient = -0.64, p = 0.001), Zinc-α2-glycoprotein [ZA2G] (B-coefficient = -0.57, p = 0.002), visfatin (B-coefficient = 0.26, p = 0.034), hs-CRP (B-coefficient = 0.38, p = 0.002), HOMA-IR (B-coefficient = 0.34, p = 0.001), age (B-coefficient = 0.31, p = 0.022), glypican-4 (B-coefficient = -0.23, p = 0.042), and male sex (B-coefficient = 0.11, p = 0.048). After entering combined depending variable (LV hypertrophy and LV diastolic dysfunction) to the model the significant predictors remained serum levels of omentin-1 (B-coefficient = -0.82, p = 0.001), ZA2G (B-coefficient = -0.54, p = 0.001) and HOMA-IR (B-coefficient = 0.44, p = 0.001). Regression analyses showed that the most influential determinants of depending variable (LV hypertrophy + LV diastolic dysfunction) in T2DM patients were omentin-1 (B-coefficient = -1.6, p = 0.001) and ZA2G (B-coefficient = -0.78, p = 0.044). CONCLUSION We found that serum levels of omentin-1 and ZA2G were the most important predictors for LV hypertrophy + LV diastolic dysfunction in T2DM patients. Large clinical trials are required to confirm this assumption and get clear explanation of issues unveiled.
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Affiliation(s)
- Oleksandr M Bilovol
- Clinical Pharmacology and Internal Medicine Department, Kharkiv National Medical University, Kharkiv, Ukraine.
| | - Iryna I Knyazkova
- Clinical Pharmacology and Internal Medicine Department, Kharkiv National Medical University, Kharkiv, Ukraine.
| | - Olena V Al-Travneh
- Department of Internal Medicine V. N. Karazin Kharkiv National University, Ukraine.
| | | | - Alexander E Berezin
- Internal Medicine Department, State Medical University of Zaporozhye, 26, Mayakovsky Av., Zaporozhye, 69035, Ukraine.
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Withers SB, Dewhurst T, Hammond C, Topham CH. MiRNAs as Novel Adipokines: Obesity-Related Circulating MiRNAs Influence Chemosensitivity in Cancer Patients. Noncoding RNA 2020; 6:ncrna6010005. [PMID: 31979312 PMCID: PMC7151601 DOI: 10.3390/ncrna6010005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue is an endocrine organ, capable of regulating distant physiological processes in other tissues via the release of adipokines into the bloodstream. Recently, circulating adipose-derived microRNAs (miRNAs) have been proposed as a novel class of adipokine, due to their capacity to regulate gene expression in tissues other than fat. Circulating levels of adipokines are known to be altered in obese individuals compared with typical weight individuals and are linked to poorer health outcomes. For example, obese individuals are known to be more prone to the development of some cancers, and less likely to achieve event-free survival following chemotherapy. The purpose of this review was twofold; first to identify circulating miRNAs which are reproducibly altered in obesity, and secondly to identify mechanisms by which these obesity-linked miRNAs might influence the sensitivity of tumors to treatment. We identified 8 candidate circulating miRNAs with altered levels in obese individuals (6 increased, 2 decreased). A second literature review was then performed to investigate if these candidates might have a role in mediating resistance to cancer treatment. All of the circulating miRNAs identified were capable of mediating responses to cancer treatment at the cellular level, and so this review provides novel insights which can be used by future studies which aim to improve obese patient outcomes.
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Affiliation(s)
- Sarah B. Withers
- Biomedical Research Centre, School of Science, Engineering and Environment, Peel Building, University of Salford, Salford M5 4WT, UK; (S.B.W.); (T.D.); (C.H.)
- Salford Royal Foundation Trust, Clinical Sciences Building, Stott Lane, Salford M6 8HD, UK
| | - Toni Dewhurst
- Biomedical Research Centre, School of Science, Engineering and Environment, Peel Building, University of Salford, Salford M5 4WT, UK; (S.B.W.); (T.D.); (C.H.)
| | - Chloe Hammond
- Biomedical Research Centre, School of Science, Engineering and Environment, Peel Building, University of Salford, Salford M5 4WT, UK; (S.B.W.); (T.D.); (C.H.)
| | - Caroline H. Topham
- Biomedical Research Centre, School of Science, Engineering and Environment, Peel Building, University of Salford, Salford M5 4WT, UK; (S.B.W.); (T.D.); (C.H.)
- Correspondence: ; Tel.: +44-(0)-161-295-4292
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Zhang X, Liu J, Shao S, Yang Y, Qi D, Wang C, Lin Q, Liu Y, Tu J, Wang J, Ning X, Cui J. Sex Differences in the Prevalence of and Risk Factors for Abnormal Glucose Regulation in Adults Aged 50 Years or Older With Normal Fasting Plasma Glucose Levels. Front Endocrinol (Lausanne) 2020; 11:531796. [PMID: 33679598 PMCID: PMC7933576 DOI: 10.3389/fendo.2020.531796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 12/29/2020] [Indexed: 12/17/2022] Open
Abstract
AIMS Abnormal glucose regulation, which can present as diabetes and prediabetes, has become one of the most common chronic conditions. However, sex differences in the prevalence of and factors associated with abnormal glucose regulation remain unclear. Thus, we aimed to explore sex differences in the prevalence of and factors associated with abnormal glucose regulation in low-income adults in China aged ≥50 years with normal fasting plasma glucose levels. MATERIALS AND METHODS A total of 2,175 individuals aged ≥50 years with normal fasting plasma glucose levels were recruited into this study. After an overnight fast of at least 10 h, individuals underwent an oral glucose tolerance test. Fasting and 2-h plasma glucose levels were measured to determine the state of glucose regulation. RESULTS Women were more likely than men to have isolated-impaired glucose tolerance (i-IGT) overall (24.7% vs 20.8%; P= 0.034), among individuals aged <65 years (21.7% vs 15.9%; P= 0.012). Among men, independent risk factors for i-IGT were an age of ≥65 years, hypertension, and high serum uric acid (SUA) and triglyceride levels; independent risk factors for diabetes mellitus (DM) were an age of ≥75 years and alcohol consumption. Among women, independent risk factors for i-IGT were central obesity and high levels of high-sensitivity C-reactive protein and SUA; independent risk factors for DM were low education and an elevated white blood cell count. CONCLUSIONS Our findings suggest that conventional cardiovascular disease risk factors (i.e., age, hypertension, and dyslipidemia) associated with high risk of developing DM in men, but poor life style (i.e., obesity) and low education attainment in women. It is necessary for delay or stopping the development of DM among low-income adults in China to implement the personalized scheme of prevention DM between men and women, especially highlight control the risk factors in young and middle aged women.
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Affiliation(s)
- Xinxin Zhang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Jie Liu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Shuang Shao
- Department of Endocrinology and Metabolism, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yuan Yang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Dongwang Qi
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Conglin Wang
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiuxing Lin
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Yue Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Jun Tu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Jinghua Wang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
- *Correspondence: Jingqiu Cui, ; Xianjia Ning, ; Jinghua Wang,
| | - Xianjia Ning
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
- Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
- *Correspondence: Jingqiu Cui, ; Xianjia Ning, ; Jinghua Wang,
| | - Jingqiu Cui
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Jingqiu Cui, ; Xianjia Ning, ; Jinghua Wang,
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Liu L, Xu H, Zhao H, Jiang C. STEAP4 Inhibits HIF-1α/PKM2 Signaling and Reduces High Glucose-Induced Apoptosis of Retinal Vascular Endothelial Cells. Diabetes Metab Syndr Obes 2020; 13:2573-2582. [PMID: 32765036 PMCID: PMC7381765 DOI: 10.2147/dmso.s251663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/29/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is a vascular lesion induced by high glucose. STEAP4 is an indispensable membrane protein, which is closely related to hyperglycemic-induced cell inflammation and injury, while STEPT4 has not been studied in hyperglycemic-induced retinal vascular endothelial cell injury. METHODS The expression of STEAP4 was detected by RT-qPCR and Western blot. CCK-8 was used to detect cell survival. STEAP4 was overexpressed by cell transfection. The expressions of cytokines TNF-α, IL-1, IL-6, ICAM-1, MDA, SOD and ROS were detected by ELISA. Cell apoptosis was detected by flow cytometry. The expressions of proteins associated with cell damage VEGF, KLF2, eNOS and apoptosis-related proteins Bax, cleaved caspase3 and Bcl2 were detected by Western blot. Finally, the expressions of HIFα and PKM2 were detected by immunofluorescence and Western blot. RESULTS The expression of STEAP4 in hyperglycemic-induced retinal vascular endothelial cells (HRCECs) decreased gradually. Overexpression of STEAP4 reduced inflammation and apoptosis of HRCECs and improved dysfunction of them. Meanwhile, overexpression of steap4 inhibited the expression of HIF-1α/PKM2 signal. CONCLUSION STEAP4 can be a potential therapeutic target for diabetic retinopathy by inhibiting HIF1/PKM2 signaling to reduce hyperglycemic-induced retinal cell apoptosis.
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Affiliation(s)
- Lei Liu
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun130021, People’s Republic of China
| | - Hui Xu
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun130021, People’s Republic of China
| | - Hongyu Zhao
- Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun130033, People’s Republic of China
| | - Chunying Jiang
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun130021, People’s Republic of China
- Correspondence: Chunying Jiang Department of Ophthalmology, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun130021, People’s Republic of China Email
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Zhu L, Yang B, Ma D, Wang L, Duan W. Hydrogen Sulfide, Adipose Tissue and Diabetes Mellitus. Diabetes Metab Syndr Obes 2020; 13:1873-1886. [PMID: 32581562 PMCID: PMC7276333 DOI: 10.2147/dmso.s249605] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/09/2020] [Indexed: 12/30/2022] Open
Abstract
Hydrogen sulfide (H2S) is now increasingly considered to be the third gasotransmitter alongside other gaseous signaling molecules, nitric oxide (NO) and carbon monoxide (CO). H2S is produced by a variety of endogenous enzymatic and non-enzymatic pathways and acts as a modulator of the physiological and pathological events of the body. Adipocytes express the cystathionine γ lyase (CSE)/H2S system, which modulates a variety of biological activities in adipose tissue (AT), including inflammation, apoptosis, insulin resistance, adipokine secretion and adipocyte differentiation. Abnormalities in the physiological functions of AT play an important role in the process of diabetes mellitus. Therefore, this review provides an overview of the general aspects of H2S biochemistry, the effect of H2S on AT function and diabetes mellitus and its molecular signalling mechanisms as well as the potential application of H2S in pharmacotherapy.
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Affiliation(s)
- Lin Zhu
- Department of Pediatrics, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan430030, People’s Republic of China
| | - Bo Yang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, People’s Republic of China
| | - Dongxia Ma
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Lan Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan430030, People’s Republic of China
| | - Wu Duan
- Division of Endocrinology, Department of Internal Medicine, Qilu Hospital of Shandong University, Jinan250012, People’s Republic of China
- Correspondence: Wu Duan Division of Endocrinology, Department of Internal Medicine, Qilu Hospital of Shandong University, Jinan250012, People’s Republic of China Tel/Fax +86-531-8692-7544 Email
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Xiong H, Wang J, Ran Q, Lou G, Peng C, Gan Q, Hu J, Sun J, Yao R, Huang Q. Hesperidin: A Therapeutic Agent For Obesity. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:3855-3866. [PMID: 32009777 PMCID: PMC6859214 DOI: 10.2147/dddt.s227499] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/23/2019] [Indexed: 12/15/2022]
Abstract
Obesity is a chronic metabolic disease caused by multiple factors and is considered to be a risk factor for type 2 diabetes, cardiovascular disease, hypertension, stroke and various cancers. Hesperidin, a flavanone glycoside, is a natural phenolic compound with a wide range of biological effects. Mounting evidence has demonstrated that hesperidin possesses inhibitory effect against obesity diseases. Our review discusses mechanisms of hesperidin in the treatment of obesity. Hesperidin regulates lipid metabolism and glucose metabolism by mediating AMPK and PPAR signaling pathways, directly regulates antioxidant index and anti-apoptosis, and indirectly mediates NF-κB signaling pathway to regulate inflammation to play a role in the treatment of obesity. In addition, hesperidin-enriched dietary supplements can significantly improve symptoms such as postprandial hyperglycemia and hyperlipidemia. Further clinical trials are also required for confirming lipid-lowering efficacy of this natural flavonoid and evaluating its safety profile.
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Affiliation(s)
- Haijun Xiong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Jin Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Qian Ran
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Guanhua Lou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Chengyi Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Qingxia Gan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Ju Hu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China
| | - Jilin Sun
- Sichuan Fuzheng Pharmaceutical Co. Ltd, Sichuan, People's Republic of China
| | - Renchuan Yao
- Sichuan Fermentation Traditional Chinese Medicine Engineering Research Center, Chengdu, People's Republic of China
| | - Qinwan Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, People's Republic of China.,State Key Laboratory of Traditional Chinese Medicine Processing Technology, State Administration of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
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