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Wang Z, Zhou X, Deng M, Yin Y, Li Y, Zhang Q, Bian Y, Miao J, Li J, Hou G. Clinical impacts of sarcopenic obesity on chronic obstructive pulmonary disease: a cross-sectional study. BMC Pulm Med 2023; 23:394. [PMID: 37853348 PMCID: PMC10585792 DOI: 10.1186/s12890-023-02702-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/09/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Sarcopenia and obesity are two abnormal body composition phenotypes, and sarcopenic obesity (SO) is characterized by both low skeletal muscle mass (sarcopenia) and high adiposity (obesity). SO negatively influences the clinical status of patients with chronic obstructive pulmonary disease (COPD). However, the studies exploring the prevalence and clinical effects of SO in COPD patients are limited. Our study aimed to elucidate the prevalence and impact of SO on COPD patients. METHODS In this cross-sectional study, the pulmonary function, St. George's Respiratory Questionnaire, exercise tolerance, body composition, and serum levels of resistin and TNF-α were assessed in 198 COPD patients. The clinical value of serum resistin and TNF-α for predicting SO in patients with COPD was evaluated. RESULTS In the 198 patients with COPD, the prevalence rates of sarcopenia, obesity, and SO in COPD patients were 27.27%, 29.8%, and 9.6%, respectively. Patients with SO experienced more severe symptoms of dyspnea and worse health related quality of life. The expression of resistin increased in patients with SO compared to other patients. The AUC value of serum resistin level for predicting SO was 0.870 (95% CI: 0.799-0.940). BMI (OR: 1.474, 95% CI: 1.124-1.934) and resistin (OR: 1.001, 95% CI: 1.000-1.002) levels were independent risk factors of SO in patients with COPD in Multivariate analysis. CONCLUSION The prevalence rates of SO in COPD patients was 9.6%. COPD accompanied by SO is significantly associated with worse pulmonary function and poor physical performance. Serum resistin may be a potential adjunct for predicting SO in COPD patients.
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Affiliation(s)
- Zilin Wang
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoming Zhou
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College, Fuwai Hospital, Chinese Academy of Medical Sciences, Disease, Beijing, China
| | - Mingming Deng
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Yan Yin
- Department of Pulmonary and Critical Care Medicine, First Hospital of China Medical University, Shenyang, China
| | - Yanxia Li
- Respiratory Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qin Zhang
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Yiding Bian
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Jinrui Miao
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Jiaye Li
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Gang Hou
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China.
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Bisht MK, Dahiya P, Ghosh S, Mukhopadhyay S. The cause-effect relation of tuberculosis on incidence of diabetes mellitus. Front Cell Infect Microbiol 2023; 13:1134036. [PMID: 37434784 PMCID: PMC10330781 DOI: 10.3389/fcimb.2023.1134036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/25/2023] [Indexed: 07/13/2023] Open
Abstract
Tuberculosis (TB) is one of the oldest human diseases and is one of the major causes of mortality and morbidity across the Globe. Mycobacterium tuberculosis (Mtb), the causal agent of TB is one of the most successful pathogens known to mankind. Malnutrition, smoking, co-infection with other pathogens like human immunodeficiency virus (HIV), or conditions like diabetes further aggravate the tuberculosis pathogenesis. The association between type 2 diabetes mellitus (DM) and tuberculosis is well known and the immune-metabolic changes during diabetes are known to cause increased susceptibility to tuberculosis. Many epidemiological studies suggest the occurrence of hyperglycemia during active TB leading to impaired glucose tolerance and insulin resistance. However, the mechanisms underlying these effects is not well understood. In this review, we have described possible causal factors like inflammation, host metabolic changes triggered by tuberculosis that could contribute to the development of insulin resistance and type 2 diabetes. We have also discussed therapeutic management of type 2 diabetes during TB, which may help in designing future strategies to cope with TB-DM cases.
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Affiliation(s)
- Manoj Kumar Bisht
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Priyanka Dahiya
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Sudip Ghosh
- Molecular Biology Unit, Indian Council of Medical Research (ICMR)-National Institute of Nutrition, Jamai Osmania PO, Hyderabad, India
| | - Sangita Mukhopadhyay
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad, India
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Ojeda ML, Nogales F, Carreras O, Pajuelo E, Gallego-López MDC, Romero-Herrera I, Begines B, Moreno-Fernández J, Díaz-Castro J, Alcudia A. Different Effects of Low Selenite and Selenium-Nanoparticle Supplementation on Adipose Tissue Function and Insulin Secretion in Adolescent Male Rats. Nutrients 2022; 14:nu14173571. [PMID: 36079831 PMCID: PMC9459699 DOI: 10.3390/nu14173571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/20/2022] [Accepted: 08/26/2022] [Indexed: 11/23/2022] Open
Abstract
Adolescence is a period of intense growth and endocrine changes, and obesity and insulin-resistance processes during this period have lately been rising. Selenium (Se) homeostasis is related to lipid metabolism depending on the form and dose of Se. This study tests the actions of low-dose selenite and Se nanoparticles (SeNPs) on white (WAT) and brown adipose tissue (BAT) deposition, insulin secretion, and GPx1, IRS-1 and FOXO3a expression in the WAT of adolescent rats as regards oxidative stress, adipocyte length and adipokine secretion. Four groups of male adolescent rats were treated: control (C), low selenite supplementation (S), low SeNP supplementation (NS) and moderate SeNP supplementation (NSS). Supplementation was received orally through water intake; NS and NSS rats received two- and tenfold more Se than C animals, respectively. SeNPs were obtained by reducing Se tetrachloride in the presence of ascorbic acid. For the first time in vivo, it was demonstrated that low selenite supplementation contributed to increased adipogenesis via the insulin signaling pathway and LCN2 modulation, while low SeNP administration prevented fat depots in WAT via the decrease in insulin signaling and FOXO3a autophagy in WAT, lowering inflammation. These effects were independent of GPx1 expression or activity in WAT. These findings provide data for dietary approaches to prevent obesity and/or anorexia during adolescence. These findings may be relevant to future studies looking at a nutritional approach aimed at pre-venting obesity and/or anorexia in adolescence.
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Affiliation(s)
- María Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
- Correspondence: ; Tel.: +34-954556518
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Eloísa Pajuelo
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | | | - Inés Romero-Herrera
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Belén Begines
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Jorge Moreno-Fernández
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Javier Díaz-Castro
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Ana Alcudia
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
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Fisk HL, Childs CE, Miles EA, Ayres R, Noakes PS, Paras-Chavez C, Antoun E, Lillycrop KA, Calder PC. Dysregulation of Subcutaneous White Adipose Tissue Inflammatory Environment Modelling in Non-Insulin Resistant Obesity and Responses to Omega-3 Fatty Acids – A Double Blind, Randomised Clinical Trial. Front Immunol 2022; 13:922654. [PMID: 35958557 PMCID: PMC9358040 DOI: 10.3389/fimmu.2022.922654] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/20/2022] [Indexed: 01/15/2023] Open
Abstract
Background Obesity is associated with enhanced lipid accumulation and the expansion of adipose tissue accompanied by hypoxia and inflammatory signalling. Investigation in human subcutaneous white adipose tissue (scWAT) in people living with obesity in which metabolic complications such as insulin resistance are yet to manifest is limited, and the mechanisms by which these processes are dysregulated are not well elucidated. Long chain omega-3 polyunsaturated fatty acids (LC n-3 PUFAs) have been shown to modulate the expression of genes associated with lipid accumulation and collagen deposition and reduce the number of inflammatory macrophages in adipose tissue from individuals with insulin resistance. Therefore, these lipids may have positive actions on obesity associated scWAT hypertrophy and inflammation. Methods To evaluate obesity-associated tissue remodelling and responses to LC n-3 PUFAs, abdominal scWAT biopsies were collected from normal weight individuals and those living with obesity prior to and following 12-week intervention with marine LC n-3 PUFAs (1.1 g EPA + 0.8 g DHA daily). RNA sequencing, qRT-PCR, and histochemical staining were used to assess remodelling- and inflammatory-associated gene expression, tissue morphology and macrophage infiltration. Results Obesity was associated with scWAT hypertrophy (P < 0.001), hypoxia, remodelling, and inflammatory macrophage infiltration (P = 0.023). Furthermore, we highlight the novel dysregulation of Wnt signalling in scWAT in non-insulin resistant obesity. LC n-3 PUFAs beneficially modulated the scWAT environment through downregulating the expression of genes associated with inflammatory and remodelling pathways (P <0.001), but there were altered outcomes in individuals living with obesity in comparison to normal weight individuals. Conclusion Our data identify dysregulation of Wnt signalling, hypoxia, and hypertrophy, and enhanced macrophage infiltration in scWAT in non-insulin resistant obesity. LC n-3 PUFAs modulate some of these processes, especially in normal weight individuals which may be preventative and limit the development of restrictive and inflammatory scWAT in the development of obesity. We conclude that a higher dose or longer duration of LC n-3 PUFA intervention may be needed to reduce obesity-associated scWAT inflammation and promote tissue homeostasis. Clinical Trial Registration www.isrctn.com, identifier ISRCTN96712688.
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Affiliation(s)
- Helena L Fisk
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Caroline E Childs
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Elizabeth A Miles
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Robert Ayres
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Paul S Noakes
- School of Medicine, The University of Notre Dame Australia, Freemantle, WA, Australia
| | | | - Elie Antoun
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Karen A Lillycrop
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom
| | - Philip C Calder
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- National Institute for Health and Care Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, United Kingdom
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Gut Microbiota: Target for Modulation of Gut-Liver-Adipose Tissue Axis in Ethanol-Induced Liver Disease. Mediators Inflamm 2022; 2022:4230599. [PMID: 35633655 PMCID: PMC9142314 DOI: 10.1155/2022/4230599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/19/2022] [Accepted: 04/20/2022] [Indexed: 02/06/2023] Open
Abstract
Consumption of alcohol (ethanol) in various forms has been an integral part of human civilization. Since ages, it also has been an important cause of death and health impairment across the globe. Ethanol-mediated liver injury, known as alcoholic liver disease (ALD), is caused by surplus intake of alcohol. Several studies have proposed the different pathways that may be lead to ALD. One of the factors that may affect the cytochrome P450 (CYP2E1) metabolic pathway is gut dysbiosis. The gut microbiota produces various compounds that play an important role in regulating healthy functions of distal organs such as the adipose tissue and liver. Dysbiosis causes bacteremia, hepatic encephalopathy, and increased intestinal permeability. Recent clinical studies have found better understanding of the gut and liver axis. Another factor that may affect the ALD pathway is dysfunction of adipose tissue metabolism. Moreover, dysfunction of adipose tissue leads to ectopic fat deposition within the liver and disturbs lipid metabolism by increasing lipolysis/decreasing lipogenesis and impaired glucose tolerance of adipose tissue which leads to ectopic fat deposition within the liver. Adipokine secretion of resistin, leptin, and adiponectin is adversely modified upon prolonged alcohol consumption. In the combination of these two factors, a proinflammatory state is developed within the patient leading to the progression of ALD. Thus, the therapeutic approach for treatments and prevention for liver cirrhosis patients must be focused on the gut-liver-adipose tissue network modification with the use of probiotics, synbiotics, and prebiotics. This review is aimed at the effect of ethanol on gut and adipose tissue in both rodent and human alcoholic models.
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6
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Simon L, Edwards S, Molina PE. Pathophysiological Consequences of At-Risk Alcohol Use; Implications for Comorbidity Risk in Persons Living With Human Immunodeficiency Virus. Front Physiol 2022; 12:758230. [PMID: 35115952 PMCID: PMC8804300 DOI: 10.3389/fphys.2021.758230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/13/2021] [Indexed: 12/14/2022] Open
Abstract
At-risk alcohol use is a significant risk factor associated with multisystemic pathophysiological effects leading to multiorgan injury and contributing to 5.3% of all deaths worldwide. The alcohol-mediated cellular and molecular alterations are particularly salient in vulnerable populations, such as people living with HIV (PLWH), diminishing their physiological reserve, and accelerating the aging process. This review presents salient alcohol-associated mechanisms involved in exacerbation of cardiometabolic and neuropathological comorbidities and their implications in the context of HIV disease. The review integrates consideration of environmental factors, such as consumption of a Western diet and its interactions with alcohol-induced metabolic and neurocognitive dyshomeostasis. Major alcohol-mediated mechanisms that contribute to cardiometabolic comorbidity include impaired substrate utilization and storage, endothelial dysfunction, dysregulation of the renin-angiotensin-aldosterone system, and hypertension. Neuroinflammation and loss of neurotrophic support in vulnerable brain regions significantly contribute to alcohol-associated development of neurological deficits and alcohol use disorder risk. Collectively, evidence suggests that at-risk alcohol use exacerbates cardiometabolic and neurocognitive pathologies and accelerates biological aging leading to the development of geriatric comorbidities manifested as frailty in PLWH.
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7
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Lad N, Murphy A, Parenti C, Nelson C, Williams N, Sharpe G, McTernan P. Asthma and obesity: endotoxin another insult to add to injury? Clin Sci (Lond) 2021; 135:2729-2748. [PMID: 34918742 PMCID: PMC8689194 DOI: 10.1042/cs20210790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 12/20/2022]
Abstract
Low-grade inflammation is often an underlying cause of several chronic diseases such as asthma, obesity, cardiovascular disease, and type 2 diabetes mellitus (T2DM). Defining the mediators of such chronic low-grade inflammation often appears dependent on which disease is being investigated. However, downstream systemic inflammatory cytokine responses in these diseases often overlap, noting there is no doubt more than one factor at play to heighten the inflammatory response. Furthermore, it is increasingly believed that diet and an altered gut microbiota may play an important role in the pathology of such diverse diseases. More specifically, the inflammatory mediator endotoxin, which is a complex lipopolysaccharide (LPS) derived from the outer membrane cell wall of Gram-negative bacteria and is abundant within the gut microbiota, and may play a direct role alongside inhaled allergens in eliciting an inflammatory response in asthma. Endotoxin has immunogenic effects and is sufficiently microscopic to traverse the gut mucosa and enter the systemic circulation to act as a mediator of chronic low-grade inflammation in disease. Whilst the role of endotoxin has been considered in conditions of obesity, cardiovascular disease and T2DM, endotoxin as an inflammatory trigger in asthma is less well understood. This review has sought to examine the current evidence for the role of endotoxin in asthma, and whether the gut microbiota could be a dietary target to improve disease management. This may expand our understanding of endotoxin as a mediator of further low-grade inflammatory diseases, and how endotoxin may represent yet another insult to add to injury.
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Affiliation(s)
- Nikita Lad
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Alice M. Murphy
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Cristina Parenti
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Carl P. Nelson
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Neil C. Williams
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Graham R. Sharpe
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Philip G. McTernan
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
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8
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Gopal T, Ai W, Casey CA, Donohue TM, Saraswathi V. A review of the role of ethanol-induced adipose tissue dysfunction in alcohol-associated liver disease. Alcohol Clin Exp Res 2021; 45:1927-1939. [PMID: 34558087 PMCID: PMC9153937 DOI: 10.1111/acer.14698] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 12/14/2022]
Abstract
Alcohol-associated liver disease (AALD) encompasses a spectrum of liver diseases that includes simple steatosis, steatohepatitis, fibrosis, and cirrhosis. The adverse effects of alcohol in liver and the mechanisms by which ethanol (EtOH) promotes liver injury are well studied. Although liver is known to be the primary organ affected by EtOH exposure, alcohol's effects on other organs are also known to contribute significantly to the development of liver injury. It is becoming increasingly evident that adipose tissue (AT) is an important site of EtOH action. Both AT storage and secretory functions are altered by EtOH. For example, AT lipolysis, stimulated by EtOH, contributes to chronic alcohol-induced hepatic steatosis. Adipocytes secrete a wide variety of biologically active molecules known as adipokines. EtOH alters the secretion of these adipokines from AT, which include cytokines and chemokines that exert paracrine effects in liver. In addition, the level of EtOH-metabolizing enzymes, in particular, CYP2E1, rises in the AT of EtOH-fed mice, which promotes oxidative stress and/or inflammation in AT. Thus, AT dysfunction characterized by increased AT lipolysis and free fatty acid mobilization and altered secretion of adipokines can contribute to the severity of AALD. Of note, moderate EtOH exposure results in AT browning and activation of brown adipose tissue which, in turn, can promote thermogenesis. In this review article, we discuss the direct effects of EtOH consumption in AT and the mechanisms by which EtOH impacts the functions of AT, which, in turn, increases the severity of AALD in animal models and humans.
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Affiliation(s)
- Thiyagarajan Gopal
- Department of Internal Medicine, Divisions of Diabetes, Endocrinology, and Metabolism
- VA Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Weilun Ai
- Department of Internal Medicine, Divisions of Diabetes, Endocrinology, and Metabolism
- VA Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Carol A. Casey
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE
- VA Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Terrence M. Donohue
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE
- VA Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Viswanathan Saraswathi
- Department of Internal Medicine, Divisions of Diabetes, Endocrinology, and Metabolism
- VA Nebraska-Western Iowa Health Care System, Omaha, NE
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Avtanski D, Garcia A, Caraballo B, Thangeswaran P, Marin S, Bianco J, Lavi A, Poretsky L. Resistin induces breast cancer cells epithelial to mesenchymal transition (EMT) and stemness through both adenylyl cyclase-associated protein 1 (CAP1)-dependent and CAP1-independent mechanisms. Cytokine 2019; 120:155-164. [PMID: 31085453 DOI: 10.1016/j.cyto.2019.04.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/21/2019] [Accepted: 04/22/2019] [Indexed: 01/08/2023]
Abstract
Breast cancer incidence and metastasis in postmenopausal women are known to associate with obesity, but the molecular mechanisms behind this association are largely unknown. We investigated the effect of adipokine resistin on epithelial to mesenchymal transition (EMT) and stemness in breast cancer cells in vitro. Previous reports demonstrated that the inflammatory actions of resistin are mediated by the adenylyl cyclase-associated protein 1 (CAP1), which serves as its receptor. As a model for our study, we used MCF-7 and MDA-MB-231 breast cancer and MCF-10A breast epithelial cells. We showed that in MCF-7 cells resistin increases the migration of MCF-7 and MDA-MB-231 cells and induces the formation of cellular protrusions through reorganization of F-actin filaments. Resistin upregulated the expression of mesenchymal markers involved in EMT (SNAIL, SLUG, ZEB1, TWIST1, fibronectin, and vimentin), and downregulated those of epithelial markers (E-cadherin and claudin-1). Resistin also potentiated the nuclear translocation of SNAIL protein, indicating initiation of EMT reprogramming. We further induced EMT in non-carcinogenic breast epithelial MCF-10A cells demonstrating that the effects of resistin on EMT were not breast cancer cell specific. In order to assess whether resistin-induced EMT depends on CAP1, we used siRNA approach to silence CAP1 gene in MCF-7 cells. Results demonstrated that when CAP1 was silenced, the induction of SNAIL, ZEB1 and vimentin expression by resistin as well as SNAIL and ZEB1 nuclear translocation, were abolished. Additionally, CAP1 silencing resulted in a suppression of MCF-7 cells migration. We performed quantitative PCR array profiling the expression of 84 genes related to cancer stem cells (CSC), pluripotency and metastasis and selected a set of genes (ALDH1A1, ITGA4, LIN28B, SMO, KLF17, PTPRC, PROM1, SIRT1, and PECAM1) that were modulated by resistin. Further experiments demonstrated that the effect of resistin on the expression of some of these genes (PROM1, PTPRC, KLF17, SIRT1, and PECAM1) was also dependent on CAP1. Our results demonstrate that resistin promotes the metastatic potential of breast cancer cells by inducing EMT and stemness and some of these effects are mediated by CAP1.
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Affiliation(s)
- Dimiter Avtanski
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA; The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.
| | - Anabel Garcia
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | - Beatriz Caraballo
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | | | - Sela Marin
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | - Julianna Bianco
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | - Aaron Lavi
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | - Leonid Poretsky
- Friedman Diabetes Institute at Lenox Hill Hospital, Northwell Health, New York, NY, USA; The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
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Bacupari (Garcinia brasiliensis) extract modulates intestinal microbiota and reduces oxidative stress and inflammation in obese rats. Food Res Int 2019; 122:199-208. [PMID: 31229073 DOI: 10.1016/j.foodres.2019.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 04/01/2019] [Accepted: 04/06/2019] [Indexed: 02/07/2023]
Abstract
The objective of this study was to evaluate the effects of an ethanolic extract of the bark of bacupari (Garcinia brasiliensis - EEB) on the abundance of intestinal microbiota, concentration of short-chain fatty acids (SCFAs), oxidative stress, and inflammation in obese rats fed a high-fat diet (HFD). Male Wistar rats were divided into three groups: an HFD-fed obese control group, a group fed HFD plus EEB (BHFD) at a dose of 300 mg per animal per day (42 mg 7-epiclusianone and 10.76 mg morelloflavone), and a lean control group fed an AIN-93 M diet for 8 weeks. EEB decreased (p < 0.05) the abundance of organisms belonging to the phyla Firmicutes and Proteobacteria, and increased (p < 0.05) the concentration of propionic acid. Liver concentrations of malondialdehyde, nitric oxide, resistin, and p65 nuclear factor-kappa B p65(NF-κB) decreased (p < 0.05), while the expression of heat shock protein (HSP)72 and catalase increased (p < 0.05) with the consumption of EEB. Moreover, computational molecular modeling studies involving molecular docking between the main constituents of EEB, 7-epiclusianone and morelloflavone, and NF-κB suggested its inhibitory activity, thus corroborating the experimental results. The consumption of EEB may therefore be a promising strategy for the beneficial dietary modulation of the intestinal ecosystem, thereby countering oxidative stress and inflammation in obese rats. This activity is attributable to the presence of bioactive compounds that act individually or synergistically in the scavenging of free radicals or in the inflammatory process.
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Ratai O, Hermainski J, Ravichandran K, Pongs O. NCS-1 Deficiency Is Associated With Obesity and Diabetes Type 2 in Mice. Front Mol Neurosci 2019; 12:78. [PMID: 31001084 PMCID: PMC6456702 DOI: 10.3389/fnmol.2019.00078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/11/2019] [Indexed: 01/29/2023] Open
Abstract
Neuronal calcium sensor-1 (NCS-1) knockout (KO) in mice (NCS-1−/− mice) evokes behavioral phenotypes ranging from learning deficits to avolition and depressive-like behaviors. Here, we showed that with the onset of adulthood NCS-1−/− mice gain considerable weight. Adult NCS-1−/− mice are obese, especially when fed a high-fat diet (HFD), are hyperglycemic and hyperinsulinemic and thus develop a diabetes type 2 phenotype. In comparison to wild type (WT) NCS-1−/− mice display a significant increase in adipose tissue mass. NCS-1−/− adipocytes produce insufficient serum concentrations of resistin and adiponectin. In contrast to WT littermates, adipocytes of NCS-1−/− mice are incapable of up-regulating insulin receptor (IR) concentration in response to HFD. Thus, HFD-fed NCS-1−/− mice exhibit in comparison to WT littermates a significantly reduced IR expression, which may explain the pronounced insulin resistance observed especially with HFD-fed NCS-1−/− mice. We observed a direct correlation between NCS-1 and IR concentrations in the adipocyte membrane and that NCS-1 can be co-immunoprecipitated with IR indicating a direct interplay between NCS-1 and IR. We propose that NCS-1 plays an important role in adipocyte function and that NCS-1 deficiency gives rise to obesity and diabetes type 2 in adult mice. Given the association of altered NCS-1 expression with behaviorial abnormalities, NCS-1−/− mice may offer an interesting perspective for studying in a mouse model a potential genetic link between some psychiatric disorders and the risk of being obese.
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Affiliation(s)
- Olga Ratai
- Center for Integrative Physiology and Molecular Medicine (CIPPM), Institute for Cellular Neurophysiology, University of the Saarland, Homburg, Germany
| | - Joanna Hermainski
- Center for Integrative Physiology and Molecular Medicine (CIPPM), Institute for Cellular Neurophysiology, University of the Saarland, Homburg, Germany
| | - Keerthana Ravichandran
- Center for Integrative Physiology and Molecular Medicine (CIPPM), Institute for Cellular Neurophysiology, University of the Saarland, Homburg, Germany
| | - Olaf Pongs
- Center for Integrative Physiology and Molecular Medicine (CIPPM), Institute for Cellular Neurophysiology, University of the Saarland, Homburg, Germany
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Chia Seed Does Not Improve Cognitive Impairment in SAMP8 Mice Fed with High Fat Diet. Nutrients 2018; 10:nu10081084. [PMID: 30110883 PMCID: PMC6115970 DOI: 10.3390/nu10081084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 11/29/2022] Open
Abstract
Background: Chia seed is an ancient seed with the richest plant source of α-linolenic acid, which has been demonstrated to improve metabolic syndrome associated risk factors. Under high fat diet (HFD) condition, the senescence-accelerated mouse-prone 8 (SAMP8) mice demonstrated worsen Alzheimer’s disease (AD) related pathology compared to low fat diet fed SAMP8 mice. Objective: To explore whether chia seed supplementation might improve cognitive impairment under aging and metabolic stress via high fat diet (HFD) fed SAMP8 mice as a model. Design: SAMP8 mice and senescence-accelerated mouse-resistant 1 (SAMR1) were randomized into 4 groups, i.e., SAMR1 low fat diet group (SAMR1-LFD), SAMP8-HFD and SAMP8-HFD group supplemented with 10% chia seed (SAMP8-HFD+Chia). At the end of the intervention, cognitive function was measured via Morris water maze (MWM) test. Hippocampus and parietal cortex were dissected for further analysis to measure key markers involved AD pathology including Aβ, tau and neuro-inflammation. Results: During navigation trials of MWM test, mice in SAMP8-LFD group demonstrated impaired learning ability compared to SAMR1-LFD group, and chia seed had no effect on learning and memory ability for HFD fed SAMP8 mice. As for Alzheimer’s disease (AD) related pathology, chia seed not only increased α-secretase such as ADAM10 and insulin degrading enzyme (IDE), but also increased β-secretase including beta-secretase 1 (BACE1) and cathepsin B, with an overall effects of elevation in the hippocampal Aβ42 level; chia seed slightly reduced p-Tauser404 in the hippocampus; while an elevation in neuro-inflammation with the activation of glial fibrillary acidic protein (GFAP) and Ibα-1 were observed post chia seed supplementation. Conclusions: Chia seed supplementation did not improve cognitive impairment via MWM in HFD fed SAMP8 mice. This might be associated with that chia seed increased key enzymes involved both in non-amyloidogenic and amyloidogenic pathways, and neuro-inflammation. Future studies are necessary to confirm our present study.
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Rui Y, Yang S, Chen LH, Qin LQ, Wan Z. Chia Seed Supplementation Reduces Senescence Markers in Epididymal Adipose Tissue of High-Fat Diet-Fed SAMP8 Mice. J Med Food 2018; 21:755-760. [PMID: 29652550 DOI: 10.1089/jmf.2017.4129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Adipose tissue is a key organ with substantial senescent cell accumulation under both obesity and aging conditions. Chia seed is an ancient seed and is the richest plant source of α-linolenic acid. We aimed to determine how cellular senescence markers will be altered in adipose tissue of senescence-accelerated mouse-prone 8 (SAMP8) mice fed with high-fat diets (HFDs); and how chia seed can affect the above markers. SAMP8 mice and their control senescence-accelerated mouse-resistant 1 (SAMR1) were divided into four groups, that is, SAMR1 low-fat diet group (R1LF), SAMP8LF group (P8LF), SAMP8 high-fat group (P8HF), and SAMP8HF group supplemented with 10% chia seed (P8HC). At the end of the intervention, body composition was measured through T1-weighted magnetic resonance imaging, and epididymal (EPI) and subcutaneous (SC) adipose tissues were dissected for further analysis. Compared with the R1LF group, the P8HF and P8HC groups had significantly increased body fat mass. In EPI fat, p16, CD68 and PAI-1 mRNA expression from P8HF group were significantly increased; chia seed partially reduced p16 and CD68 mRNA expression. The P8LF group has increased p16 and CD68, and the P8HF group has increased p16, p21, and CD68; and P8HC group has increased p16 mRNA expression. The protein expression of p-AMPK in EPI and SC fat from the P8HF group was reduced. In conclusion, reductions in AMPK activity might be partially responsible for elevation in HFD-induced senescence markers in both EPI and SC fat, and chia seed supplementation is able to reduce senescence-associated markers at least in EPI adipose tissue.
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Affiliation(s)
- Yehua Rui
- 1 Department of Nutrition and Food Hygiene, School of Public Health, Soochow University , Suzhou, China
| | - Shengyi Yang
- 1 Department of Nutrition and Food Hygiene, School of Public Health, Soochow University , Suzhou, China
| | - Li-Hua Chen
- 1 Department of Nutrition and Food Hygiene, School of Public Health, Soochow University , Suzhou, China
| | - Li-Qiang Qin
- 1 Department of Nutrition and Food Hygiene, School of Public Health, Soochow University , Suzhou, China
| | - Zhongxiao Wan
- 1 Department of Nutrition and Food Hygiene, School of Public Health, Soochow University , Suzhou, China .,2 Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Disease, Soochow University , Suzhou, China
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Zhang Y, Li J, Wen X. Jueming prescription and its ingredients, semen cassiae and Rhizoma Curcumae Longae, stimulate lipolysis and enhance the phosphorylation of hormone-sensitive lipase in cultured rat white adipose tissue. Mol Med Rep 2017; 16:6200-6207. [DOI: 10.3892/mmr.2017.7317] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 07/03/2017] [Indexed: 11/06/2022] Open
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Steiner JL, Lang CH. Alcohol, Adipose Tissue and Lipid Dysregulation. Biomolecules 2017; 7:biom7010016. [PMID: 28212318 PMCID: PMC5372728 DOI: 10.3390/biom7010016] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023] Open
Abstract
Chronic alcohol consumption perturbs lipid metabolism as it increases adipose tissue lipolysis and leads to ectopic fat deposition within the liver and the development of alcoholic fatty liver disease. In addition to the recognition of the role of adipose tissue derived fatty acids in liver steatosis, alcohol also impacts other functions of adipose tissue and lipid metabolism. Lipid balance in response to long-term alcohol intake favors adipose tissue loss and fatty acid efflux as lipolysis is upregulated and lipogenesis is either slightly decreased or unchanged. Study of the lipolytic and lipogenic pathways has identified several regulatory proteins modulated by alcohol that contribute to these effects. Glucose tolerance of adipose tissue is also impaired by chronic alcohol due to decreased glucose transporter-4 availability at the membrane. As an endocrine organ, white adipose tissue (WAT) releases several adipokines that are negatively modulated following chronic alcohol consumption including adiponectin, leptin, and resistin. When these effects are combined with the enhanced expression of inflammatory mediators that are induced by chronic alcohol, a proinflammatory state develops within WAT, contributing to the observed lipodystrophy. Lastly, while chronic alcohol intake may enhance thermogenesis of brown adipose tissue (BAT), definitive mechanistic evidence is currently lacking. Overall, both WAT and BAT depots are impacted by chronic alcohol intake and the resulting lipodystrophy contributes to fat accumulation in peripheral organs, thereby enhancing the pathological state accompanying chronic alcohol use disorder.
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Affiliation(s)
- Jennifer L Steiner
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA.
| | - Charles H Lang
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA.
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Newell-Fugate AE. The role of sex steroids in white adipose tissue adipocyte function. Reproduction 2017; 153:R133-R149. [PMID: 28115579 DOI: 10.1530/rep-16-0417] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 01/16/2017] [Accepted: 01/20/2017] [Indexed: 12/13/2022]
Abstract
With the increasing knowledge that gender influences normal physiology, much biomedical research has begun to focus on the differential effects of sex on tissue function. Sexual dimorphism in mammals is due to the combined effects of both genetic and hormonal factors. Hormonal factors are mutable particularly in females in whom the estrous cycle dominates the hormonal milieu. Given the severity of the obesity epidemic and the fact that there are differences in the obesity rates in men and women, the role of sex in white adipose tissue function is being recognized as increasingly important. Although sex differences in white adipose tissue distribution are well established, the mechanisms affecting differential function of adipocytes within white adipose tissue in males and females remain largely understudied and poorly understood. One of the largest differences in the endocrine environment in males and females is the concentration of circulating androgens and estrogens. This review examines the effects of androgens and estrogens on lipolysis/lipogenesis, adipocyte differentiation, insulin sensitivity and adipokine production in adipocytes from white adipose tissue with a specific emphasis on the sexual dimorphism of adipocyte function in white adipose tissue during both health and disease.
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Affiliation(s)
- A E Newell-Fugate
- Department of Veterinary Physiology and PharmacologyTexas A&M University, College Station, Texas, USA
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Li F, Li Y, Duan Y, Hu CAA, Tang Y, Yin Y. Myokines and adipokines: Involvement in the crosstalk between skeletal muscle and adipose tissue. Cytokine Growth Factor Rev 2016; 33:73-82. [PMID: 27765498 DOI: 10.1016/j.cytogfr.2016.10.003] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/05/2016] [Accepted: 10/06/2016] [Indexed: 12/20/2022]
Abstract
Skeletal muscle and adipose tissue are the two largest organs in the body. Skeletal muscle is an effector organ, and adipose tissue is an organ that stores energy; in addition, they are endocrine organs that secrete cytokines, namely myokines and adipokines, respectively. Myokines consist of myostatin, interleukin (IL)-8, IL-15, irisin, fibroblast growth factor 21, and myonectin; adipokines include leptin, adiponectin, resistin, chemerin, and visfatin. Furthermore, certain cytokines, such as IL-6 and tumor necrosis factor-α, are released by both skeletal muscle and adipose tissue and exhibit a bioactive effect; thus, they are called adipo-myokines. Recently, novel myokines or adipokines were identified through the secretomic technique, which has expanded our knowledge on the previously unknown functions of skeletal muscle and adipose tissue and provide a new avenue of investigation for obesity treatment or animal production. This review focuses on the roles of and crosstalk between myokines and adipokines in skeletal muscle and adipose tissue that modulate the molecular events in the metabolic homeostasis of the whole body.
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Affiliation(s)
- Fengna Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; Hunan Co-Innovation Center of Animal Production Safety (CICAPS), Changsha, Hunan 410128, China
| | - Yinghui Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yehui Duan
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Chien-An A Hu
- Department of Biochemistry and Molecular Biology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA
| | - Yulong Tang
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China.
| | - Yulong Yin
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; Laboratory of Animal Nutrition and Human Health, School of Biology, Hunan Normal University, Changsha 410018, Hunan, China.
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Wang K, Xu J, Cai J, Zheng S, Yang X, Ding C. Serum levels of resistin and interleukin-17 are associated with increased cartilage defects and bone marrow lesions in patients with knee osteoarthritis. Mod Rheumatol 2016; 27:339-344. [PMID: 27400438 DOI: 10.1080/14397595.2016.1205777] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To investigate cross-sectional associations between serum levels of resistin and interleukin-17 (IL-17) and cartilage defects and bone marrow lesions (BMLs) in patients with knee symptomatic osteoarthritis (OA). METHODS One hundred and ninety-four consecutively-selected patients with knee symptomatic OA (mean 55.4 years, range 34-74, 87% females) were included in Anhui Osteoarthritis (AHOA) Study. Knee cartilage defects and BMLs were determined at different sites using T2-weighted fat-suppressed fast spin echo MRI. Serum resistin, IL-17, and high-sensitivity C-reactive protein (hs-CRP) levels were measured using ELISA. RESULTS In multivariable analyses, serum resistin was positively associated with cartilage defects at lateral femoral, lateral tibial, and medial tibial (all p < 0.05) sites. The significant associations were also present with BMLs at lateral femoral and tibial sites (ORs: 1.13-1.19, both p < 0.05). In patients with the highest quartile of hs-CRP (>2.45 pg/ml), IL-17 was positively and significantly associated with cartilage defect score at nearly all sites (ORs: 1.33-1.44, all p < 0.05), and BMLs at lateral and medial femoral sites (ORs: 1.26-1.51, both p < 0.05). CONCLUSIONS Serum levels of resistin were positively and independently associated with cartilage defects and BMLs in patients with knee OA. Serum IL-17 was significantly associated with cartilage defects and BMLs in patients with an increased inflammatory status. These suggest that metabolic and inflammatory mechanisms may have a role to play in knee OA.
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Affiliation(s)
- Kang Wang
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and.,b Menzies Institute for Medical Research, University of Tasmania , Hobart , Tasmania , Australia
| | - Jianhua Xu
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and
| | - Jingyu Cai
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and
| | - Shuang Zheng
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and.,b Menzies Institute for Medical Research, University of Tasmania , Hobart , Tasmania , Australia
| | - Xueqing Yang
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and
| | - Changhai Ding
- a Department of Rheumatology and Immunology , Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University , Hefei , China and.,b Menzies Institute for Medical Research, University of Tasmania , Hobart , Tasmania , Australia
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Cheng J, Chen L, Han S, Qin L, Chen N, Wan Z. Treadmill Running and Rutin Reverse High Fat Diet Induced Cognitive Impairment in Diet Induced Obese Mice. J Nutr Health Aging 2016; 20:503-8. [PMID: 27102787 DOI: 10.1007/s12603-015-0616-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To determine the effects of treadmill exercise training and rutin intervention independently and in combination on key molecules involved in Alzheimer's disease (AD) pathology and cognitive function in diet induced obese (DIO) mice. METHODS C57BL/6J mice were randomized into 5 groups: chow group, high fat diet group (HFD), HFD plus rutin intervention group (HR), HFD combined with treadmill running group (HE), HFD combined with treadmill running and rutin group (HRE). At the end of the intervention, Morris water maze test was conducted to assess hippocampal dependent, long term spatial learning and memory retention. Hippocampus and cortex were dissected and the protein expression of key molecules including insulin-degrading enzyme (IDE), Beta-secretase (BACE1), signal transducer and activator of transcription 3 (STAT3), cAMP-response element binding protein (CREB), post-synaptic density protein 95 (PSD-95) and synaptophysin were measured via western blotting. RESULTS Exercise and rutin enhances HFD induced cognitive deficits in DIO mice. In the hippocampus, although HFD has no effect on IDE, BACE1, phosphorylation (p)-STAT3 and p-CREB, HR and HE group have elevated protein expression of IDE; meanwhile, p-CREB was elevated in the HE and HRE group. In the cortex, HFD led to induction in BACE1 and reduction in p-STAT3 and PSD95. Rutin or exercise reversed BACE1, p-STAT3 and PSD95 to normal levels. CONCLUSIONS Treadmill running and rutin could improve HFD induced cognitive impairment, and p-STAT3, p-CREB, BACE1, IDE, and PSD95 are potential mediators involved in the protective effects of rutin or exercise against HFD induced cognitive dysfunction.
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Affiliation(s)
- J Cheng
- Zhongxiao Wan, PhD, Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, P.R. China, (P) 0186-0512-65883159; (F) 0186-0512-65883159,
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Chen N, Cheng J, Zhou L, Lei T, Chen L, Shen Q, Qin L, Wan Z. Effects of treadmill running and rutin on lipolytic signaling pathways and TRPV4 protein expression in the adipose tissue of diet-induced obese mice. J Physiol Biochem 2015; 71:733-42. [PMID: 26424736 DOI: 10.1007/s13105-015-0437-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 09/23/2015] [Indexed: 01/14/2023]
Abstract
To explore the effects of rutin and exercise on high-fat diet (HFD)-induced disrupted lipolytic signaling, adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) signaling, transient receptor potential cation channel subfamily V member 4 (TRPV4) and its associated protein expression, and whether depot-specific effects existed. C57BL/6J mice were randomized into five groups: chow group, HFD, HFD plus rutin intervention group (HR), HFD combined with treadmill running group (HE), and HFD combined with treadmill running and rutin intervention group (HRE). At the end of the 16-week intervention, lipolytic markers, AMPK signaling pathways, TRPV4, and peroxisome proliferator-activated receptor gamma coactivator 1α + β (PGC-1α + β) from adipose tissue were measured by western blotting. In epididymal adipose tissue, HFD resulted in significant reduction in the phosphorylation of hormone sensitive lipase at serine660 (p-HSL660), perilipin A, phosphoenolpyruvate carboxykinase (PEPCK), p-AMPK, and p-acetyl-CoA carboxylase (ACC) protein expression. Exercise intervention and exercise plus rutin completely restored p-HSL660, perilipin A, PEPCK, p-AMPK, and p-ACC protein expression to normal level. HFD and HR groups have reduced expression of PGC-1α + β, exercise, and exercise plus rutin completely restored PGC-1α + β expression to normal level. In subcutaneous adipose tissue, HFD elevated TRPV4, exercise, and exercise plus rutin completely reduced TRPV4 to normal level. HR, HE, and HRE group have increased PGC-1α + β. In conclusion, depot-specific effects existed in regards to how rutin and exercise affect lipolytic signaling and p-AMPK, as well as TRPV4 and PGC-1α + β expression.
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Affiliation(s)
- Neng Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123
| | - Jinbo Cheng
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123
| | - Lingmei Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123
| | - Ting Lei
- Suzhou Industrial Park Center Disease Control and Prevention, 58 Suqian Road, Suzhou, 215123, People's Republic of China
| | - Lihua Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123
| | - Qiang Shen
- Suzhou Center for Disease Control and Prevention, 72 Sanxiang Road, 215004, Suzhou, People's Republic of China
| | - Liqiang Qin
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123.
| | - Zhongxiao Wan
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Renai Road 199, Dushuhu Higher Education Town, Suzhou, China, 215123. .,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Disease, Soochow University, 199 Renai Road, Suzhou, 215123, People's Republic of China.
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