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Wesołek-Leszczyńska A, Pastusiak K, Bogdański P, Szulińska M. Can Adipokine FAM19A5 Be a Biomarker of Metabolic Disorders? Diabetes Metab Syndr Obes 2024; 17:1651-1666. [PMID: 38616989 PMCID: PMC11016272 DOI: 10.2147/dmso.s460226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/19/2024] [Indexed: 04/16/2024] Open
Abstract
Aim One of the most critical functions of adipose tissue is the production of adipokines, ie, numerous active substances that regulate metabolism. One is the newly discovered FAM19A5, whose older name is TAFA-5. Purpose The study aimed to review the literature on the FAM19A5 protein. Methods The review was conducted in December 2023 using the PubMed (Medline) search engine. Sixty-four papers were included in the review. Results This protein exhibits the characteristics of an adipokine with positive features for maintaining homeostasis. The results showed that FAM19A5 was highly expressed in adipose tissue, with mild to moderate expression in the brain and ovary. FAM19A5 may also inhibit vascular smooth muscle cell proliferation and migration through the perivascular adipose tissue paracrine pathway. Serum levels of FAM19A5 were decreased in obese children compared with healthy controls. There are negative correlations between FAM19A5, body mass index, and fasting insulin. Serum FAM19A5 level is correlated with type 2 diabetes, waist circumference, waist-to-hip ratio, glutamic pyruvic transferase, fasting plasma glucose, HbA1c, and mean shoulder pulse wave velocity. FAM19A5 expression was reduced in mice with obesity. However, the data available needs to be clarified or contradictory. Conclusion Considering today's knowledge about FAM19A5, we cannot consider this protein as a biomarker of the metabolic syndrome. According to current knowledge, FAM19A5 cannot be considered a marker of metabolic disorders because the results of studies conducted in this area are unclear.
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Affiliation(s)
- Agnieszka Wesołek-Leszczyńska
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Poznań, Poland
- Doctoral School, Poznan University Of Medical Sciences, Poznań, Poland
| | - Katarzyna Pastusiak
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Poznań, Poland
| | - Paweł Bogdański
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Poznań, Poland
| | - Monika Szulińska
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Poznań, Poland
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Hussein AA, Ahmed NA, Sakr HI, Atia T, Ahmed OM. Omentin roles in physiology and pathophysiology: an up-to-date comprehensive review. Arch Physiol Biochem 2023:1-14. [PMID: 37994431 DOI: 10.1080/13813455.2023.2283685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023]
Abstract
Omentin (intelectin) was first detected in the visceral omental adipose tissue. It has mainly two isoforms, omentin-1 and -2, with isoform-1 being the main form in human blood. It possesses insulin-sensitizing, anti-inflammatory, anti-atherogenic, cardio-protective, and oxidative stress-decreasing effects. Omentin's cardiovascular protective actions are caused by the improved endothelial cell survival and function, increased endothelial nitric oxide synthase (eNOS) and nitric oxide (NO) bioavailability, enhanced vascular smooth muscle cells (VSMCs) relaxation with reduced proliferation, decreased inflammation, and suppressed oxidative stress. Omentin may also have a potential role in different cancer types and rheumatic diseases. Thus, omentin is an excellent therapeutic target in many diseases, including diabetes mellitus (DM), metabolic syndrome (MetS), cardiovascular diseases (CVDs), inflammatory diseases, and cancer. This review demonstrates the physiological functions of omentin in ameliorating insulin resistance (IR), vascular function, and inflammation and its possible share in managing obesity-linked diseases, such as metabolic disorders, DM, and cardiovascular conditions.
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Affiliation(s)
- Aida A Hussein
- Zoology Department, Physiology Division, Faculty of Science, Suez University, Suez, Egypt
| | - Noha A Ahmed
- Department of Zoology, Physiology Division, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
| | - Hader I Sakr
- Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
- Department of Medical Physiology, General Medicine Practice Program, Batterjee Medical College, Jeddah, Saudi Arabia
| | - Tarek Atia
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
- Department of Histology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Osama M Ahmed
- Department of Zoology, Physiology Division, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
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Xue J, Lu Y, Zou T, Shi W, Wang S, Cheng X, Wan J, Chen Y, Wang M, Wang Q, Yang X, Ding M, Qi Z, Ding Y, Hu M, Zhang X, Li H, Hu Y. A protein- and fiber-rich diet with astaxanthin alleviates high-fat diet-induced obesity in beagles. Front Nutr 2022; 9:1019615. [DOI: 10.3389/fnut.2022.1019615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/30/2022] [Indexed: 11/13/2022] Open
Abstract
Background and aimsOverweight or obesity is one of the most prevalent health burdens in companion pets and predisposes subjects to multiple comorbidities and reduced longevity. Dietary management and sufficient exercise are effective options for weight loss but challenged by modern lifestyle and calorie control-triggered malnutrition. Therefore, this study aimed to develop a formulated obesity control diet characterized by protein- and fiber-rich diet and supplemented with astaxanthin. We systemically evaluated global influences of the designed weight-loss diet on metabolic homeostasis in an obese beagle model.Materials and methodsBeagles were induced for obesity by a 24-week HFD treatment and then included into weight-loss programs. Briefly, obese beagles were randomly assigned to two groups that were fed with a formulated weight-loss diet or control diet, respectively. Body weight and body condition scoring (BCS) were analyzed biweekly. Computed tomography (CT), nuclear magnetic resonance imaging (MRI) measurements, and blood and adipose tissue biopsies were collected at 0 and 8 weeks. Plasma lipids and adipocyte size were also measured after 8 weeks of weight-loss diet feeding. The global influence of the formulated diet on the whole spectrum of gene panels were examined by adipose RNA assays.ResultsTwenty-four weeks of continuous HFD feeding significantly induced obesity in beagles, as evidenced by increased body weight, BCS, abdominal fat mass, and serum lipid levels. The obese and metabolic condition of the modeled canine were effectively improved by an 8-week weight-loss diet administration. Importantly, we did not observe any side effects during the weight loss duration. Transcriptional analysis of adipose tissues further supported that a weight-loss diet significantly increased energy metabolism-related pathways and decreased lipid synthesis-related pathways.ConclusionThe prescribed weight-loss diet exhibited profound benefits in canine weight management with well safety and palatability. These findings support effective strategies of nutritional management and supplementation approaches for weight control in companion animals.
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Humińska-Lisowska K, Mieszkowski J, Kochanowicz A, Bojarczuk A, Niespodziński B, Brzezińska P, Stankiewicz B, Michałowska-Sawczyn M, Grzywacz A, Petr M, Cięszczyk P. Implications of Adipose Tissue Content for Changes in Serum Levels of Exercise-Induced Adipokines: A Quasi-Experimental Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148782. [PMID: 35886639 PMCID: PMC9316284 DOI: 10.3390/ijerph19148782] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/15/2022] [Accepted: 07/17/2022] [Indexed: 12/10/2022]
Abstract
Human adipocytes release multiple adipokines into the bloodstream during physical activity. This affects many organs and might contribute to the induction of inflammation. In this study, we aimed to assess changes in circulating adipokine levels induced by intense aerobic and anaerobic exercise in individuals with different adipose tissue content. In the quasi-experimental study, 48 male volunteers (aged 21.78 ± 1.98 years) were assigned to groups depending on their body fat content (BF): LBF, low body fat (<8% BF, n = 16); MBF, moderate body fat (8−14% BF, n = 19); and HBF, high body fat (>14% BF, n = 13). The volunteers performed maximal aerobic effort (MAE) and maximal anaerobic effort (MAnE) exercises. Blood samples were collected at five timepoints: before exercise, immediately after, 2 h, 6 h, and 24 h after each exercise. The selected cytokines were analyzed: adiponectin, follistatin-like 1, interleukin 6, leptin, oncostatin M, and resistin. While the participants’ MAnE and MAE performance were similar regardless of BF, the cytokine response of the HBF group was different from that of the others. Six hours after exercise, leptin levels in the HBF group increased by 35%. Further, immediately after MAnE, resistin levels in the HBF group also increased, by approximately 55%. The effect of different BF was not apparent for other cytokines. We conclude that the adipokine exercise response is associated with the amount of adipose tissue and is related to exercise type.
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Affiliation(s)
- Kinga Humińska-Lisowska
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
- Correspondence: (K.H.-L.); (J.M.); Tel.: +48-510362693 (K.H.-L.); +48-501619669 (J.M.)
| | - Jan Mieszkowski
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
- Faculty of Physical Education and Sport, Charles University, 162-52 Prague, Czech Republic;
- Correspondence: (K.H.-L.); (J.M.); Tel.: +48-510362693 (K.H.-L.); +48-501619669 (J.M.)
| | - Andrzej Kochanowicz
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
| | - Aleksandra Bojarczuk
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
| | - Bartłomiej Niespodziński
- Institute of Physical Education, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland; (B.N.); (B.S.)
| | - Paulina Brzezińska
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
| | - Błażej Stankiewicz
- Institute of Physical Education, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland; (B.N.); (B.S.)
| | - Monika Michałowska-Sawczyn
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
| | - Anna Grzywacz
- Independent Laboratory of Health Promotion, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland;
| | - Miroslav Petr
- Faculty of Physical Education and Sport, Charles University, 162-52 Prague, Czech Republic;
| | - Paweł Cięszczyk
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (A.K.); (A.B.); (P.B.); (M.M.-S.); (P.C.)
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Dai HB, Wang HY, Wang FZ, Qian P, Gao Q, Zhou H, Zhou YB. Adrenomedullin ameliorates palmitic acid-induced insulin resistance through PI3K/Akt pathway in adipocytes. Acta Diabetol 2022; 59:661-673. [PMID: 34978596 DOI: 10.1007/s00592-021-01840-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022]
Abstract
AIMS White adipose tissue (WAT) dysfunction has been associated with adipose tissue low-grade inflammation and oxidative stress leading to insulin resistance (IR). Adrenomedullin (ADM), an endogenous active peptide considered as an adipokine, is associated with adipocytes function. METHODS We evaluated the protective effects of ADM against IR in 3T3-L1 adipocytes treated by palmitic acid (PA) and in visceral white adipose tissue (vWAT) of obese rats fed with high-fat diet. RESULTS We found that endogenous protein expressions of ADM and its receptor in PA-treated adipocytes were markedly increased. PA significantly induced impaired insulin signaling by affecting phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt) axis and glucose transporter-4 (GLUT-4) levels, whereas ADM pretreatment enhanced insulin signaling PI3K/Akt and GLUT-4 membrane protein levels, decreased pro-inflammatory cytokines tumor necrosis factor α (TNFα), interleukin-1β (IL-1β) and IL-6 levels, and improved oxidative stress accompanied with reduced reactive oxygen species (ROS) levels and increased anti-oxidant enzymes manganese superoxide dismutase 2 (SOD2), glutathione peroxidase (GPx1) and catalase (CAT) protein expressions. Furthermore, ADM treatment not only improved IR in obese rats, but also effectively restored insulin signaling, and reduced inflammation and oxidative stress in vWAT of obese rats. CONCLUSIONS This study demonstrates a prevention potential of ADM against obesity-related metabolic disorders, due to its protective effects against IR, inflammation and oxidative stress in adipocytes.
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Affiliation(s)
- Hang-Bing Dai
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Hong-Yu Wang
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Fang-Zheng Wang
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Pei Qian
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Qing Gao
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Hong Zhou
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Ye-Bo Zhou
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China.
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Naghizadeh M, Karajibani M, Fanaei H, Montazerifar F, Dashipour A. Effect of synbiotic supplementation on asprosin level in high fat diet-induced metabolic disorder in pregnant rats. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2021. [DOI: 10.3233/mnm-210595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Synbiotic supplementation can improve metabolic disorders. The aim of this study was to assess the impact of synbiotic supplementation on the levels of asprosin, lipid profile, glucose, and insulin resistance in pregnant rats fed a high-fat diet (HFD). Rats were divided into three groups: control group (fed base chow), HFD group, and HFD + synbiotic group. Levels of blood glucose, total cholesterol, triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), insulin, and asprosin levels were measured. Birth weight of offspring in the HFD + synbiotic group was significantly lower than in the HFD group. Similarly, serum asprosin, insulin, insulin resistance, TG and total cholesterol levels in the HFD + symbiotic group were significantly lower than in the HFD group. Asprosin levels had a significant and positive correlation between food intake in the first ten days of the experiment and gestation period, fasting blood sugar (FBS), TG, and homeostatic model assessment (HOMA) index. Moreover, asprosin levels had a significant and negative correlation with HDL and insulin levels. Results showed, synbiotic supplementation has beneficial effects on obese animals and improves weight gain during pregnancy, pup birth weight, FBS, insulin resistance and lipid profile. These advantages of synbiotic supplementation could be mediated by reducing serum asprosin levels.
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Affiliation(s)
- Mehrdad Naghizadeh
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mansour Karajibani
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Fanaei
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
- Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzaneh Montazerifar
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Alireza Dashipour
- Department of Food Science, School of medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Boughanem H, Ruiz-Limon P, Crujeiras AB, de Luque V, Tinahones FJ, Macias-Gonzalez M. 25-Hydroxyvitamin D status is associated with interleukin-6 methylation in adipose tissue from patients with colorectal cancer. Food Funct 2021; 12:9620-9631. [PMID: 34549226 DOI: 10.1039/d1fo01371h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A dysfunctional visceral adipose tissue (VAT) is characterized by increased production of proinflammatory cytokines, which may increase the risk of colorectal cancer (CRC). However, the epigenetic contribution to the inflammatory status is poorly understood. In our study, we hypothesized that a dysfunctional VAT may be a risk factor for CRC, through epigenetic modifications. Therefore, we aimed to study the transcriptional/methylation profile of proinflammatory cytokines and genes related to vitamin D metabolism in VAT from CRC patients, and evaluate their association with serum 25-hydroxyvitamin D (25(OH)D). We included 129 participants (68 healthy participants and 61 CRC patients). We found that the majority of the studied genes are upregulated and hypomethylated in CRC patients, when compared to the healthy subjects (p < 0.05). In addition, serum 25(OH)D was associated with both mRNA gene expression and methylation of key genes, such as interleukin (IL)6, IL10, vitamin D receptor (VDR) or cytochrome P450 subfamily 27 type B1 (CYP27B1) (p < 0.05). Interestingly, while high IL6 expression was related to poor survival in CRC (p < 0.05), IL6 methylation was associated with an increased risk of CRC, in which 25(OH)D partially mediated this association (p < 0.05). Our study suggests a potential association between epigenetic regulation of inflammatory mediators in VAT - such as IL6 - in the CRC context, in which 25(OH)D may mediate this risk. Therefore, vitamin D could affect the epigenetic status of IL6, which can be considered for additional preventive strategies.
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Affiliation(s)
- Hatim Boughanem
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), University of Malaga, 29016 Malaga, Spain.
| | - Patricia Ruiz-Limon
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), University of Malaga, 29016 Malaga, Spain. .,CIBER in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ana B Crujeiras
- CIBER in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Epigenomics in Endocrinology and Nutrition Group, Instituto de Investigación Sanitaria (IDIS), Complejo Hospitalario Universitario de Santiago (CHUS/SERGAS), 15706 Santiago de Compostela, Spain
| | - Vanessa de Luque
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospitales Universitarios Regional y Virgen de la Victoria, Málaga, Spain.,Laboratorio de Biología Molecular del Cáncer, Centro de Investigaciones Médico-Sanitarias (CIMES), Universidad de Málaga, Málaga, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), University of Malaga, 29016 Malaga, Spain. .,CIBER in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Manuel Macias-Gonzalez
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), University of Malaga, 29016 Malaga, Spain. .,CIBER in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Jeong H, Lee C, Cheng C, Chou HC, Yang H, Bae H. Targeting of adipose tissue macrophages by bee venom phospholipase A2 attenuates high-fat diet-induced obesity. Int J Obes (Lond) 2021; 45:1656-1667. [PMID: 33947969 PMCID: PMC8310798 DOI: 10.1038/s41366-021-00823-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 02/24/2021] [Accepted: 04/08/2021] [Indexed: 12/26/2022]
Abstract
Background/objectives Adipose tissue macrophages (ATMs) exist in either the M1 or M2 form. The anti-inflammatory M2 ATMs accumulate in lean individuals, whereas the pro-inflammatory M1 ATMs accumulate in obese individuals. Bee venom phospholipase A2 (bvPLA2), a major component in honeybee (Apis mellifera) venom, exerts potent anti-inflammatory effects via interactions with regulatory T cells (Treg) and macrophages. This study investigated the effects of bvPLA2 on a high-fat diet (HFD)-induced obesity in mice. Subjects/methods For in vivo experiments, male C57BL/6, CD206-deficient, and Treg-depleted mice models were fed either a normal diet 41.86 kJ (ND, 10 kcal% fat) or high-fat diet 251.16 kJ (HFD, 60 kcal% fat). Each group was i.p. injected with PBS or bvPLA2 (0.5 mg/kg) every 3 days for 11 weeks. Body weight and food intake were measured weekly. Histological changes in the white adipose tissue (WAT), liver, and kidney as well as the immune phenotypes of the WAT were examined. Immune cells, cytokines, and lipid profiles were also evaluated. The direct effects of bvPLA2 on 3T3-L1 pre-adipocytes and bone marrow-derived macrophages were measured in vitro. Results bvPLA2 markedly decreased bodyweight in HFD-fed mice. bvPLA2 treatment also decreased lipid accumulation in the liver and reduced kidney inflammation in the mice. It was confirmed that bvPLA2 exerted immunomodulatory effects through the CD206 receptor. In addition, bvPLA2 decreased M1 ATM and alleviated the M1/M2 imbalance in vivo. However, bvPLA2 did not directly inhibit adipogenesis in the 3T3-L1 adipose cells in vitro. Conclusions bvPLA2 is a potential therapeutic strategy for the management of obesity by regulating adipose tissue macrophage homeostasis.
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Affiliation(s)
- Hyunju Jeong
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Chanju Lee
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Chenyu Cheng
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hung Chun Chou
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - HyeJin Yang
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.
| | - Hyunsu Bae
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.
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Nery M, Ferreira PS, Gonçalves DR, Spolidorio LC, Manthey JA, Cesar TB. Physiological effects of tangeretin and heptamethoxyflavone on obese C57BL/6J mice fed a high-fat diet and analyses of the metabolites originating from these two polymethoxylated flavones. Food Sci Nutr 2021; 9:1997-2009. [PMID: 33841818 PMCID: PMC8020949 DOI: 10.1002/fsn3.2167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/28/2020] [Accepted: 01/17/2021] [Indexed: 12/29/2022] Open
Abstract
Two compounds from citrus peel, tangeretin (TAN) and 3',4',3,5,6,7,8-heptamethoxyflavone (HMF), were investigated for their abilities to repair metabolic damages caused by an high-fat diet (HFD) in C57BL/6J mice. In the first 4 weeks, mice were fed either a standard diet (11% kcal from fat) for the control group, or a HFD (45% kcal from fat) to establish obesity in three experimental groups. In the following 4 weeks, two groups receiving the HFD were supplemented with either TAN or HMF at daily doses of 100 mg/kg body weight, while the two remaining groups continued to receive the standard healthy diet or the nonsupplemented HFD. Four weeks of supplementation with TAN and HMF resulted in intermediate levels of blood serum glucose, leptin, resistin, and insulin resistance compared with the healthy control and the nonsupplemented HFD groups. Blood serum peroxidation (TBARS) levels were significantly lower in the TAN and HMF groups compared with the nonsupplemented HFD group. Several differences occurred in the physiological effects of HMF versus TAN. TAN, but not HMF, reduced adipocyte size in the mice with pre-existent obesity, while HMF, but not TAN, decreased fat accumulation in the liver and also significantly increased the levels of an anti-inflammatory cytokine, IL-10. In an analysis of the metabolites of TAN and HMF, several main classes occurred, including a new set of methylglucuronide conjugates. It is suggested that contrasts between the observed physiological effects of TAN and HMF may be attributable to the differences in numbers and chemical structures of TAN and HMF metabolites.
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Affiliation(s)
- Marina Nery
- Department of Food and NutritionLaboratory of NutritionFaculty of Pharmaceutical SciencesSão Paulo State University (UNESP)AraraquaraBrazil
| | - Paula S. Ferreira
- Department of Food and NutritionLaboratory of NutritionFaculty of Pharmaceutical SciencesSão Paulo State University (UNESP)AraraquaraBrazil
- U.S. Horticultural Research LaboratoryAgricultural Research ServiceUSDAFort PierceFLUSA
| | - Danielle R. Gonçalves
- Department of Food and NutritionLaboratory of NutritionFaculty of Pharmaceutical SciencesSão Paulo State University (UNESP)AraraquaraBrazil
- U.S. Horticultural Research LaboratoryAgricultural Research ServiceUSDAFort PierceFLUSA
| | - Luis C. Spolidorio
- Department of Physiology and PathologySchool of DentistrySão Paulo State University (UNESP)AraraquaraBrazil
| | - John A. Manthey
- U.S. Horticultural Research LaboratoryAgricultural Research ServiceUSDAFort PierceFLUSA
| | - Thais B. Cesar
- Department of Food and NutritionLaboratory of NutritionFaculty of Pharmaceutical SciencesSão Paulo State University (UNESP)AraraquaraBrazil
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Sergienko VB, Ansheles AA, Sergienko IV, Boytsov SA. Relationship of obesity, low-density lipoprotein cholesterol and myocardial perfusion in patients with risk factors and without atherosclerotic cardiovascular diseases. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2021. [DOI: 10.15829/1728-8800-2021-2734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Aim. In the retrospective study, to identify the relationship between body mass index (BMI), low-density lipoprotein cholesterol (LDL-C) levels and myocardial perfusion in patients without established atherosclerotic cardiovascular diseases.Material and methods. The study included 534 patients with cardiovascular risk factors but without established coronary artery disease, diabetes, myocardial infarction or coronary revascularization. In 76 of them, stress/rest myocardial perfusion single-photon emission computed tomography (SPECT) was performed.Results. The relationship between BMI and LDL-C levels is described by a quadratic (r2=0,21, p<0,001) function or a linear spline kinked in BMI of 27 kg/m2 (r=0,51, -0,46 — before and after this value, respectively; p<0,001). According to SPECT, focal stable and transient left ventricular myocardial perfusion abnormalities were not detected. However, there was a direct linear correlation between the heterogeneity of rest myocardial perfusion (ohet) and BMI (r=0,43, p<0,001), ohet and waist circumference (r=0,40, p<0,001), as well as between ohet and LDL-C (r=0,44, p<0,001).Conclusion. The relationship between BMI and LDL-C levels can be explained by endocrine dysfunction of adipose tissue, which disturbs the synthesis and metabolism of atherogenic lipoproteins. Obesity and increased LDL-C levels affect myocardial perfusion both by aggravating coronary atherogenesis and by microcirculatory disorders. Rest myocardial perfusion SPECT can be a method of screening for myocardial disorders caused by both diffuse atherosclerosis and metabolic syndrome.
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11
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Zhao D, Pan Y, Yu N, Bai Y, Ma R, Mo F, Zuo J, Chen B, Jia Q, Zhang D, Liu J, Jiang G, Gao S. Curcumin improves adipocytes browning and mitochondrial function in 3T3-L1 cells and obese rodent model. ROYAL SOCIETY OPEN SCIENCE 2021; 8:200974. [PMID: 33959308 PMCID: PMC8074937 DOI: 10.1098/rsos.200974] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Accumulating evidence suggests that mitochondrial dysfunction and adipocyte differentiation promote lipid accumulation in the development of obesity and diabetes. Curcumin is an active ingredient extracted from Curcuma longa that has been shown to exhibit antioxidant and anti-inflammatory potency in metabolic disorders. However, the underlying mechanisms of curcumin in adipocytes remain largely unexplored. We studied the effects of curcumin on adipogenic differentiation and mitochondrial oxygen consumption and analysed the possible mechanisms. 3T3-L1 preadipocytes were used to assess the effect of curcumin on differentiation of adipocytes. The Mito Stress Test measured by Seahorse XF Analyzer was applied to investigate the effect of curcumin on mitochondrial oxygen consumption in 3T3-L1 adipocytes. The effect of curcumin on the morphology of both white and brown adipose tissue (WAT and BAT) was evaluated in a high-fat diet-induced obese mice model. We found that curcumin dose-dependently (10, 20 and 35 µM) induced adipogenic differentiation and the intracellular fat droplet accumulation. Additionally, 10 µM curcumin remarkably enhanced mature adipocyte mitochondrial respiratory function, specifically, accelerating basic mitochondrial respiration, ATP production and uncoupling capacity via the regulation of peroxisome proliferator-activated receptor γ (PPARγ) (p < 0.01). Curcumin administration also attenuated the morphological changes in adipose tissues in high-fat diet-induced obese mice. Moreover, curcumin markedly increased the mRNA and protein expressions of mitochondrial uncoupling protein 1 (UCP1), PPARγ, peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) and PR domain protein 16 (PRDM16) in vivo and in vitro. Collectively, the results demonstrate that curcumin promotes the adipogenic differentiation of preadipocytes and mitochondrial oxygen consumption in 3T3-L1 mature adipocytes by regulating UCP1, PRDM16, PPARγ and PGC-1α expression.
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Affiliation(s)
- Dandan Zhao
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Yanyun Pan
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Na Yu
- Educational Office, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Ying Bai
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Rufeng Ma
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Fangfang Mo
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Jiacheng Zuo
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Beibei Chen
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Qiangqiang Jia
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Dongwei Zhang
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Jiaxian Liu
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90007, USA
| | - Guanjian Jiang
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Sihua Gao
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
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12
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Yang F, Zhou N, Zhu X, Min C, Zhou W, Li X. n-3 PUFAs protect against adiposity and fatty liver by promoting browning in postnatally overfed male rats: a role for NRG4. J Nutr Biochem 2021; 93:108628. [PMID: 33705952 DOI: 10.1016/j.jnutbio.2021.108628] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/05/2020] [Accepted: 02/02/2021] [Indexed: 02/06/2023]
Abstract
Early-life nutrition plays an important role in regulating adult metabolism. This study evaluated the effects of early nutrition during the suckling and postweaning periods on expression of the adipocytokine Neuregulin 4 (Nrg4) and its relationship with nonalcoholic fatty liver disease (NAFLD) in adulthood. In vivo, male rats were adjusted to litter sizes of three (small litter, SL) or ten (normal litter, NL) on postnatal day 3. Pups were fed control chow (NL and SL groups) or a high-fat diet (NL-HF and SL-HF groups), and SL pups specifically were fed a fish oil diet rich in n-3 polyunsaturated fatty acids (n-3 PUFAs) (SL-FO group), from postnatal weeks 3 to 13. The results demonstrated that postnatal overnutrition increased weight, hepatic de novo lipogenesis (DNL) gene expression and NAFLD and decreased body temperature and Nrg4, Ucp1 and Pgc1a mRNA expression in adipose tissues in SL, SL-HF and NL-HF rats compared to NL rats in adulthood. The opposite trends were observed in SL-FO rats. Moreover, in vitro, recombinant NRG4 protein reduced lipid accumulation by inhibiting DNL gene expression in fatty HepG2 cells stimulated with sodium oleate. In HPAs, eicosapentaenoic acid (EPA) treatment elevated NRG4 production and caused adipocyte browning, and these effects were abrogated by PPARG antagonism. In conclusion, a postweaning n-3 PUFA diet enhanced Nrg4 expression in adipose tissues, associated with attenuation of NAFLD induced by SL rearing. Additionally, external NRG4 reduced lipogenesis in steatotic hepatocytes. Thus, white adipose tissue browning induced by n-3 PUFAs may promote NRG4 production through the PPARG pathway.
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Affiliation(s)
- Fan Yang
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Nan Zhou
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiaolei Zhu
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Cuiting Min
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Wei Zhou
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiaonan Li
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; Institute of Pediatric Research, Nanjing Medical University, Nanjing, Jiangsu Province, China.
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13
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Moruzzi M, Klöting N, Blüher M, Martinelli I, Tayebati SK, Gabrielli MG, Roy P, Micioni Di Bonaventura MV, Cifani C, Lupidi G, Amenta F, Tomassoni D. Tart Cherry Juice and Seeds Affect Pro-Inflammatory Markers in Visceral Adipose Tissue of High-Fat Diet Obese Rats. Molecules 2021; 26:1403. [PMID: 33807712 PMCID: PMC7961347 DOI: 10.3390/molecules26051403] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/03/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Tart cherries (Prunus cerasus L.) are a rich source of anthocyanins. They are phytochemical flavonoids found in red and blue fruits, and vegetables that can reduce hyperlipidemia. Visceral Adipose Tissue (VAT) has emerged as a major player in driving obesity-related inflammatory response. METHODS This study has investigated the potential positive effects of tart cherries on rats with Diet-Induced Obesity (DIO). In particular, the inflammatory status in retroperitoneal (RPW) and perigonadal (PGW) adipose tissue were studied. Rats were fed ad libitum for 17 weeks with a hypercaloric diet with the supplementation of tart cherries seeds powder (DS) and seeds powder plus tart cherries juice containing 1mg of anthocyanins (DJS). In RPW and PGW, expression of CRP, IL-1 β, TNF-α, CCL2 and CD36, were measured by qRT-PCR, Western blot and immunohistochemistry techniques. RESULTS No differences in the weight of RPW and PGW animals were found between DS and DJS groups compared to DIO rats. However, an increase of inflammatory markers was observed in DIO group in comparison with control lean rats. A modulation of these markers was evident upon tart cherry supplementation. CONCLUSION Study results suggest that tart cherry enriched-diet did not modify the accumulation of visceral fat, but it decreased inflammatory markers in both tissues. Therefore, this supplementation could be useful, in combination with healthy lifestyles, to modify adipose tissue cell metabolism limiting-obesity related organ damage.
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Affiliation(s)
- Michele Moruzzi
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
| | - Nora Klöting
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, 04103 Leipzig, Germany; (N.K.); (M.B.)
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, 04103 Leipzig, Germany; (N.K.); (M.B.)
| | - Ilenia Martinelli
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
- Institute of Metabolic and Cardiovascular Diseases (I2MC), Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Toulouse, 31432 Toulouse, France
| | - Seyed Khosrow Tayebati
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
| | - Maria Gabriella Gabrielli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (M.G.G.); (P.R.)
| | - Proshanta Roy
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (M.G.G.); (P.R.)
| | | | - Carlo Cifani
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
| | - Giulio Lupidi
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
| | - Francesco Amenta
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.M.); (I.M.); (S.K.T.); (M.V.M.D.B.); (C.C.); (G.L.); (F.A.)
| | - Daniele Tomassoni
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (M.G.G.); (P.R.)
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14
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Rifampicin impairs adipogenesis by suppressing NRF2-ARE activity in mice fed a high-fat diet. Toxicol Appl Pharmacol 2021; 413:115393. [PMID: 33412187 DOI: 10.1016/j.taap.2020.115393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/27/2020] [Accepted: 12/30/2020] [Indexed: 12/21/2022]
Abstract
Prolonged treatment with rifampicin (RFP), a first-line antibacterial agent used in the treatment of drug-sensitive tuberculosis, may cause various side effects, including metabolic disorders. The nuclear factor (erythroid-derived 2)-like 2 (NFE2L2, also known as NRF2) plays an essential regulatory role in cellular adaptive responses to stresses via the antioxidant response element (ARE). Our previous studies discovered that NRF2 regulates the expression of CCAAT-enhancer-binding protein β (Cebpb) and peroxisome proliferator-activated receptor gamma (Pparg) in the process of adipogenesis. Here, we found that prolonged RFP treatment in adult male mice fed a high-fat diet developed insulin resistance, but reduced fat accumulation and decreased expression of multiple adipogenic genes in white adipose tissues. In 3 T3-L1 preadipocytes, RFP reduced the induction of Cebpb, Pparg and Cebpa at mRNA and protein levels in the early and/or later stage of hormonal cocktail-induced adipogenesis. Mechanistic investigations demonstrated that RFP inhibits NRF2-ARE luciferase reporter activity and expression of NRF2 downstream genes under normal culture condition and in the early stage of adipogenesis in 3 T3-L1 preadipocytes, suggesting that RFP can disturb adipogenic differentiation via NRF2-ARE interference. Taken together, we demonstrate a potential mechanism that RFP impairs adipose function by which RFP likely inhibits NRF2-ARE pathway and thereby interrupts its downstream adipogenic transcription network.
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15
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Solis Paredes JM, Perichart Perera O, Montoya Estrada A, Reyes Muñoz E, Espino y Sosa S, Ortega Castillo V, Medina Bastidas D, Tolentino Dolores M, Sanchez Martinez M, Nava Salazar S, Estrada Gutierrez G. Gestational Weight Gain Influences the Adipokine-Oxidative Stress Association during Pregnancy. Obes Facts 2021; 14:604-612. [PMID: 34535612 PMCID: PMC8740011 DOI: 10.1159/000518639] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/21/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION AND OBJECTIVE The weight gained during pregnancy could determine the immediate and future health of the mother-child dyad. Excessive gestational weight gain (EGWG) due to abnormal adipose tissue (AT) accumulation is strongly associated with adverse perinatal outcomes as gestational diabetes, macrosomia, obesity, and hypertension further in life. Dysregulation of adipokine, AT dysfunction, and an imbalance in the prooxidant-antioxidant systems are critical features in altered AT accumulation. This study was aimed to investigate the association between adipokines and oxidative stress markers in pregnant women and the influence of the GWG on this association. METHODS Maternal blood samples were obtained in the third trimester of pregnancy (n = 74) and serum adipokines (adiponectin, leptin, and resistin), oxidative damage markers: 8-oxo-2'-deoxyguanosine (8-oxodG), lipohydroperoxides (LOOH), malondialdehyde (MDA), and carbonylated proteins (CP), and glucose a metabolic marker were measured. RESULTS Women with EGWG had low adiponectin levels than women with adequate weight gain (AWG) or insufficient weight gain (IWG). Multiple linear regression models revealed a positive association between adiponectin and 8-oxodG in women with AWG (B = 1.09, 95% CI: 164-222, p = 0.027) and IWG (B = 0.860, 95% CI: 0.199-1.52, p = 0.013) but not in women with EGWG. In women with EGWG, leptin was positively associated with LOOH (p = 0.018), MDA (p = 0.005), and CP (p = 0.010) oxidative markers. CONCLUSION Our findings suggest that concurrent mechanisms regulate adipokine production and oxidative stress in pregnant women and that this regulation is influenced by GWG, probably due to an excessive AT accumulation.
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Affiliation(s)
- Juan Mario Solis Paredes
- Department of Human Genetics and Genomics, Instituto Nacional de Perinatologia, Mexico City, Mexico
| | - Otilia Perichart Perera
- Instituto Nacional de Perinatologia, Nutrition and Bioprogramming Coordination, Mexico City, Mexico
| | - Araceli Montoya Estrada
- Instituto Nacional de Perinatologia, Coordination of Gynecological and Perinatal Endocrinology, Mexico City, Mexico
| | - Enrique Reyes Muñoz
- Instituto Nacional de Perinatologia, Coordination of Gynecological and Perinatal Endocrinology, Mexico City, Mexico
| | | | | | - Diana Medina Bastidas
- Instituto Nacional de Perinatologia– Facultad de Quimica-UNAM, Unidad de Investigación en Reproducción Humana, Mexico City, Mexico
| | | | | | - Sonia Nava Salazar
- Department of Inmunobiochemistry, Instituto Nacional de Perinatologia, Mexico City, Mexico
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16
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Nicchio BO, Barrouin-Melo SM, Machado MC, Vieira-Filho CH, Santos FL, Martins-Filho EF, Barbosa VF, Barral TD, Portela RW, Damasceno KA, Estrela-Lima A. Hyperresistinemia in Obese Female Dogs With Mammary Carcinoma in Benign-Mixed Tumors and Its Correlation With Tumor Aggressiveness and Survival. Front Vet Sci 2020; 7:509. [PMID: 32903534 PMCID: PMC7438446 DOI: 10.3389/fvets.2020.00509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/03/2020] [Indexed: 12/16/2022] Open
Abstract
Resistin is associated with metabolic, inflammatory, and neoplastic disorders, and is also considered a prognostic marker in human oncology. Canine mammary tumors have epidemiological, clinical, biological, and genetic characteristics similar to those of women and are proposed as a comparative study model. Here, we evaluate the serum levels of resistin in female dogs with or without mammary carcinoma in mixed tumors (CBMT) and its correlation with the proliferative potential of the tumor, obesity, and survival. Eighty dogs grouped according to the presence (50) or absence (30) of CBMT, reproductive status and body condition were assessed for weight, fat percentage, and canine body mass index. The characteristic of the proliferative potential of the tumor (Ki-67) was evaluated. Ki-67 levels (p = 0.024), staging (p = 0.004), and grade (p = 0.016) influenced the survival of the female dogs. Through a multifactorial analysis, it could be seen that the parameters proliferation index (Ki-67) (p = 0.044) and staging (p = 0.036) influenced the survival of the animals. Neutered and overweight dogs from the control and CBMT groups showed hyperresistinemia. Ki-67 expression and resistin levels in dogs with CBMT were higher in overweight dogs than in dogs with normal weight (p = 0.0001). The survival rate of dogs with CBMT, obese and with high levels of resistin (8,400 μg L−1) was lower when compared to those with lower levels of resistin. These results showed an important relationship between hyperresistinemia, tumor proliferative potential and excessive body fat, suggesting that resistin levels may act as an interesting prognostic marker in patients with CBMT.
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Affiliation(s)
- Bianca Oliveira Nicchio
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | | | - Marilia Carneiro Machado
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | - Carlos Humberto Vieira-Filho
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | - Ferlando Lima Santos
- Health Science Center, Federal University of the Recôncavo of Bahia, Santo Antônio de Jesus, Brazil
| | - Emanoel Ferreira Martins-Filho
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | | | - Thiago Doria Barral
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Ricardo Wagner Portela
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Karine Araújo Damasceno
- Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil.,Laboratory of Experimental Pathology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, Brazil
| | - Alessandra Estrela-Lima
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
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Mendez-Gutierrez A, Osuna-Prieto FJ, Aguilera CM, Ruiz JR, Sanchez-Delgado G. Endocrine Mechanisms Connecting Exercise to Brown Adipose Tissue Metabolism: a Human Perspective. Curr Diab Rep 2020; 20:40. [PMID: 32725289 DOI: 10.1007/s11892-020-01319-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW To summarize the state-of-the-art regarding the exercise-regulated endocrine signals that might modulate brown adipose tissue (BAT) activity and/or white adipose tissue (WAT) browning, or through which BAT communicates with other tissues, in humans. RECENT FINDINGS Exercise induces WAT browning in rodents by means of a variety of physiological mechanism. However, whether exercise induces WAT browning in humans is still unknown. Nonetheless, a number of protein hormones and metabolites, whose signaling can influence thermogenic adipocyte's metabolism, are secreted during and/or after exercise in humans from a variety of tissues and organs, such as the skeletal muscle, the adipose tissue, the liver, the adrenal glands, or the cardiac muscle. Overall, it seems plausible to hypothesize that, in humans, exercise secretes an endocrine cocktail that is likely to induce WAT browning, as it does in rodents. However, even if exercise elicits a pro-browning endocrine response, this might result in a negligible effect if blood flow is restricted in thermogenic adipocyte-rich areas during exercise, which is still to be determined. Future studies are needed to fully characterize the exercise-induced secretion (i.e., to determine the effect of the different exercise frequency, intensity, type, time, and volume) of endocrine signaling molecules that might modulate BAT activity and/or WAT browning or through which BAT communicates with other tissues, during exercise. The exercise effect on BAT metabolism and/or WAT browning could be one of the still unknown mechanisms by which exercise exerts beneficial health effects, and it might be pharmacologically mimicked.
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Affiliation(s)
- Andrea Mendez-Gutierrez
- Department of Biochemistry and Molecular Biology II, "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Biomedical Research Centre (CIBM), University of Granada, Granada, Spain
- Biohealth Research Institute in Granada (ibs.GRANADA), Granada, Spain
- CIBER Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Madrid, Spain
| | - Francisco J Osuna-Prieto
- Department of Analytical Chemistry, Technology Centre for Functional Food Research and Development (CIDAF), University of Granada, Granada, Spain
- PROFITH "PROmoting FITness and Health through Physical Activity" Research Group, Sport and Health University Research Institute (iMUDS), Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Concepcion M Aguilera
- Department of Biochemistry and Molecular Biology II, "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Biomedical Research Centre (CIBM), University of Granada, Granada, Spain
- Biohealth Research Institute in Granada (ibs.GRANADA), Granada, Spain
- CIBER Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Madrid, Spain
| | - Jonatan R Ruiz
- PROFITH "PROmoting FITness and Health through Physical Activity" Research Group, Sport and Health University Research Institute (iMUDS), Faculty of Sport Sciences, University of Granada, Granada, Spain.
- Department of Physical Education and Sports, University of Granada, Granada, Spain.
| | - Guillermo Sanchez-Delgado
- PROFITH "PROmoting FITness and Health through Physical Activity" Research Group, Sport and Health University Research Institute (iMUDS), Faculty of Sport Sciences, University of Granada, Granada, Spain.
- Department of Physical Education and Sports, University of Granada, Granada, Spain.
- Pennington Biomedical Research Center, Baton Rouge, LA, USA.
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Serinkan Cinemre FB, Cinemre H, Bahtiyar N, Kahyaoğlu B, Ağaç MT, Shundo H, Sevinç L, Aydemir B. Apelin, Omentin-1, and Vaspin in patients with essential hypertension: association of adipokines with trace elements, inflammatory cytokines, and oxidative damage markers. Ir J Med Sci 2020; 190:97-106. [PMID: 32583310 DOI: 10.1007/s11845-020-02272-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/27/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Hypertension (HT) is a disease associated with endothelial dysfunction which is related to some adipokines and pro- and anti-inflammatory cytokines. AIMS Our aim was to investigate roles of apelin, omentin-1, and vaspin in essential HT and to evaluate their relationships with other pro- and anti-inflammatory cytokines, trace elements, and oxidative stress. We also investigated these parameters to determine asymptomatic target organ damage period and grading essential hypertension. METHODS One hundred fifty-three patients diagnosed with essential hypertension and 45 healthy controls were included in the study. Hypertension was defined as a systolic blood pressure > 140 mmHg and/or a diastolic blood pressure > 90 mm Hg or current use of an antihypertensive medication. The patients who had secondary HT, other chronic metabolic, cardiovascular, cerebrovascular diseases were excluded. History and physical exam including detailed cardiovascular examination were performed in all participants. Adipokines, cytokines, trace elements, lipid peroxidation, and ischemia-modified albumin levels were measured in blood samples by biochemical methods. RESULTS Vaspin, IL-4, IL-8, IL-10, selenium, and zinc levels were significantly lower in the HT group compared to healthy controls while omentin-1, TNF-α, copper, iron, MDA, SOD, and IMA-C levels were significantly higher in HT patients compared to controls. Multiple ordinal regression revealed that TNF-α, IL-10, and body mass index of patients were statistically significant independent predictors (P = 0.024, P = 0.019, and P = 0.032, respectively) for grading of HT. IL-4 and IL-10 were significantly higher in patients with asymptomatic target organ damage, compared to patients without asymptomatic target organ damage (P = 0.032 and P = 0.015, respectively). Our findings suggest that adipokines apelin, omentin, and vaspin may be involved in hypertension by a complex interaction with the anti- and pro-inflammatory cytokines, trace elements, and oxidative stress pathways.
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Affiliation(s)
- Fatma Behice Serinkan Cinemre
- Department of Biochemistry, Faculty of Medicine, Sakarya University, Korucuk Campus Adapazari, 54290, Sakarya, Turkey.
| | - Hakan Cinemre
- Department of Internal Medicine, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Nurten Bahtiyar
- Department of Biophysics, Cerrahpaşa Medical Faculty, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Behlül Kahyaoğlu
- Department of Cardiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Mustafa Tarık Ağaç
- Department of Cardiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Harika Shundo
- Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Leyla Sevinç
- Department of Biochemistry, Faculty of Medicine, Sakarya University, Korucuk Campus Adapazari, 54290, Sakarya, Turkey
| | - Birsen Aydemir
- Department of Biophysics, Faculty of Medicine, Sakarya University, Sakarya, Turkey
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19
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Zhou H, Zhang Z, Qian G, Zhou J. Omentin‐1 attenuates adipose tissue inflammation via restoration of TXNIP/NLRP3 signaling in high‐fat diet‐induced obese mice. Fundam Clin Pharmacol 2020; 34:721-735. [DOI: 10.1111/fcp.12575] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 05/12/2020] [Accepted: 05/26/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Hongli Zhou
- National Drug Clinical Trial Institution The Second Affiliated HospitalArmy Medical University Chongqing 400037 China
| | - Zuo Zhang
- National Drug Clinical Trial Institution The Second Affiliated HospitalArmy Medical University Chongqing 400037 China
| | - Guisheng Qian
- Institute of Respiratory Diseases The Second Affiliated HospitalArmy Medical University Chongqing 400037 China
| | - Jiyin Zhou
- National Drug Clinical Trial Institution The Second Affiliated HospitalArmy Medical University Chongqing 400037 China
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20
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Choi HM, Doss HM, Kim KS. Multifaceted Physiological Roles of Adiponectin in Inflammation and Diseases. Int J Mol Sci 2020; 21:ijms21041219. [PMID: 32059381 PMCID: PMC7072842 DOI: 10.3390/ijms21041219] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/28/2022] Open
Abstract
Adiponectin is the richest adipokine in human plasma, and it is mainly secreted from white adipose tissue. Adiponectin circulates in blood as high-molecular, middle-molecular, and low-molecular weight isoforms. Numerous studies have demonstrated its insulin-sensitizing, anti-atherogenic, and anti-inflammatory effects. Additionally, decreased serum levels of adiponectin is associated with chronic inflammation of metabolic disorders including Type 2 diabetes, obesity, and atherosclerosis. However, recent studies showed that adiponectin could have pro-inflammatory roles in patients with autoimmune diseases. In particular, its high serum level was positively associated with inflammation severity and pathological progression in rheumatoid arthritis, chronic kidney disease, and inflammatory bowel disease. Thus, adiponectin seems to have both pro-inflammatory and anti-inflammatory effects. This indirectly indicates that adiponectin has different physiological roles according to an isoform and effector tissue. Knowledge on the specific functions of isoforms would help develop potential anti-inflammatory therapeutics to target specific adiponectin isoforms against metabolic disorders and autoimmune diseases. This review summarizes the current roles of adiponectin in metabolic disorders and autoimmune diseases.
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Affiliation(s)
- Hyung Muk Choi
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
| | - Hari Madhuri Doss
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Gandong-gu, Seoul 02447, Korea
| | - Kyoung Soo Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Gandong-gu, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-961-9619
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21
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Al-Shibli SM, Harun N, Ashour AE, Mohd Kasmuri MHB, Mizan S. Expression of leptin and leptin receptors in colorectal cancer-an immunohistochemical study. PeerJ 2019; 7:e7624. [PMID: 31592340 PMCID: PMC6778430 DOI: 10.7717/peerj.7624] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 08/06/2019] [Indexed: 01/22/2023] Open
Abstract
Obesity is demonstrated to be a risk factor in the development of cancers of various organs, such as colon, prostate, pancreas and so on. Leptine (LEP) is the most renowned of the adipokines. As a hormone, it mediates its effect through leptin receptor (LEPR), which is widely expressed in various tissues including colon mucosa. In this study, we have investigated the degree of expression of LEP and LEPR in colorectal cancer (CRC). We collected 44 surgically resected colon cancer tissues along with normal adjacent colon tissue (NACT) from a sample of CRC patients from the Malaysian population and looked for leptin and leptin receptors using immunohistochemistry (IHC). All the samples showed low presence of both LEP and LEPR in NACT, while both LEP and LEPR were present at high intensity in the cancerous tissues with 100% and 97.7% prevalence, respectively. Both were sparsed in the cytoplasm and were concentrated beneath the cell membrane. However, we did not find any significant correlation between their expression and pathological parameters like grade, tumor size, and lymph node involvement. Our study further emphasizes the possible causal role of LEP and LEPR with CRC, and also the prospect of using LEPR as a possible therapeutic target.
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Affiliation(s)
- Saad M Al-Shibli
- Department of Basic Medical Sciences, International Islamic University, Kuantan, Pahang, Malaysia
| | - Norra Harun
- Pathology Department, Hospital Tengku Ampuan Afzan, Kuantan, Pahang, Malaysia
| | - Abdelkader E Ashour
- Department of Basic Medical Sciences, International Islamic University, Kuantan, Pahang, Malaysia
| | - Mohd Hanif B Mohd Kasmuri
- Department of Pathology & Laboratory Medicine, International Islamic University, Kuantan, Pahang, Malaysia
| | - Shaikh Mizan
- Department of Basic Medical Sciences, International Islamic University, Kuantan, Pahang, Malaysia
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22
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Zhang W, Xu L, Luo T, Zhao B, Wu F, Li X. Immune-related gene expression profiles of hypothermia adipocytes: Implications for Bell's palsy. Oral Dis 2019; 25:1652-1663. [PMID: 31127963 DOI: 10.1111/odi.13126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/03/2019] [Accepted: 05/14/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To identify immune-related gene expression profiles of adipocytes under low temperatures with RNA sequencing as a model for Bell's palsy implications. METHODS Adipocytes were harvested from the white adipose tissue of male Sprague-Dawley rats and cultured under different acute-grade cold exposure conditions of 30, 20, and 10°C, and their genomes were sequenced for RNA sequencing analysis. The differentially expressed genes (DEGs) were validated with reverse transcription polymerase chain reaction. RESULTS In total, 55 (35 upregulated and 20 downregulated), 121 (76 upregulated and 45 downregulated), and 92 (64 upregulated and 28 downregulated) DEGs were identified under 30, 20, and 10°C compared with the control, respectively. KEGG and GO analysis revealed that the DEGs were considerably enriched in immune-related pathways (leukocyte transendothelial migration and platelet activation) and infection (bacterial invasion of epithelial cells and Salmonella infection). The levels of key inflammatory chemokines (CSF1, CXCL1, CCL2, and CCL7) were enhanced after cold exposure. CONCLUSION These findings broaden our understanding of the immune responses to cold exposure in adipocytes. The molecular profiles of adipocyte immune function will help clarify the potential mechanism impacting myelin, which might contribute to the development of strategies to control Bell's palsy.
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Affiliation(s)
- Wenjuan Zhang
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Lei Xu
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Tingting Luo
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China.,The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Bin Zhao
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Feng Wu
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Xianqi Li
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China.,Department of Oral and Maxillofacial Surgery, Matsumoto Dental University, Shiojiri, Japan
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23
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Nogues P, Dos Santos E, Jammes H, Berveiller P, Arnould L, Vialard F, Dieudonné MN. Maternal obesity influences expression and DNA methylation of the adiponectin and leptin systems in human third-trimester placenta. Clin Epigenetics 2019; 11:20. [PMID: 30732639 PMCID: PMC6367801 DOI: 10.1186/s13148-019-0612-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 01/09/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND It is well established that obesity is associated with dysregulation of the ratio between the two major adipokines leptin and adiponectin. Furthermore, it was recently reported that maternal obesity has a significant impact on placental development. Leptin and adiponectin are present at the fetal-maternal interface and are involved in the development of a functional placenta. However, less is known about leptin and adiponectin's involvement in the placental alterations described in obese women. Hence, the objective of the present study was to characterize the placental expression and DNA methylation of these two adipokine systems (ligands and receptors) in obese women. RESULTS Biopsies were collected from the fetal and maternal sides of third-trimester placenta in obese and non-obese (control) women. In both groups, leptin levels were higher on the fetal side than the maternal side, suggesting that this cytokine has a pivotal role in fetal growth. Secondly, maternal obesity (in the absence of gestational diabetes) was associated with (i) elevated DNA methylation of the leptin promoter on fetal side only, (ii) hypomethylation of the adiponectin promoter on the maternal side only, (iii) significantly low levels of leptin receptor protein (albeit in the absence of differences in mRNA levels and promoter DNA methylation), (iv) significantly low levels of adiponectin receptor 1 mRNA expression on the maternal side only, and (v) elevated DNA methylation of the adiponectin receptor 2 promoter on the maternal side only. CONCLUSION Our present results showed that maternal obesity is associated with the downregulation of both leptin/adiponectin systems in term placenta, and thus a loss of the beneficial effects of these two adipokines on placental development. Maternal obesity was also associated with epigenetic changes in leptin and adiponectin systems; this highlighted the molecular mechanisms involved in the placenta's adaptation to a harmful maternal environment.
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Affiliation(s)
- Perrine Nogues
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France
| | - Esther Dos Santos
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France.,Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint-Germain-en-Laye, Poissy, France
| | - Hélène Jammes
- UMR BDR, INRA, ENVA, Université Paris Saclay, Jouy en Josas, France
| | - Paul Berveiller
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France.,Service de Gynécologie-Obstétrique, Centre Hospitalier de Poissy-Saint-Germain-en-Laye, Poissy, France
| | - Lucie Arnould
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France
| | - François Vialard
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France.,Département de Biologie de la Reproduction, Cytogénétique, Centre Hospitalier de Poissy-Saint-Germain-en-Laye, Poissy, France
| | - Marie-Noëlle Dieudonné
- GIG-EA 7404, Université de Versailles-St Quentin, Université Paris-Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, 2 avenue de la Source de la Bièvre, F-78180, Montigny-le-Bretonneux, France.
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24
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Oxidative Stress and Nutraceuticals in the Modulation of the Immune Function: Current Knowledge in Animals of Veterinary Interest. Antioxidants (Basel) 2019; 8:antiox8010028. [PMID: 30669304 PMCID: PMC6356544 DOI: 10.3390/antiox8010028] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/11/2019] [Accepted: 01/15/2019] [Indexed: 12/20/2022] Open
Abstract
In the veterinary sector, many papers deal with the relationships between inflammation and oxidative stress. However, few studies investigate the mechanisms of action of oxidised molecules in the regulation of immune cells. Thus, authors often assume that these events, sometime leading to oxidative stress, are conserved among species. The aim of this review is to draw the state-of-the-art of the current knowledge about the role of oxidised molecules and dietary antioxidant compounds in the regulation of the immune cell functions and suggest some perspectives for future investigations in animals of veterinary interest.
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25
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Neumann A, Schindler M, Olofsson D, Wilhelmi I, Schürmann A, Heyd F. Genome-wide identification of alternative splicing events that regulate protein transport across the secretory pathway. J Cell Sci 2019; 132:jcs.230201. [DOI: 10.1242/jcs.230201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/09/2019] [Indexed: 01/05/2023] Open
Abstract
Alternative splicing (AS) strongly increases proteome diversity and functionality in eukaryotic cells. Protein secretion is a tightly-controlled process, especially in a tissue-specific and differentiation-dependent manner. While previous work has focussed on transcriptional and post-translational regulatory mechanisms, the impact of AS on the secretory pathway remains largely unexplored. Here we integrate a published screen for modulators of protein transport and RNA-Seq analyses to identify over 200 AS events as secretion regulators. We confirm that splicing events along all stages of the secretory pathway regulate the efficiency of membrane trafficking using Morpholinos and CRISPR/Cas9. We furthermore show that these events are highly tissue-specific and adapt the secretory pathway during T-cell activation and adipocyte differentiation. Our data substantially advance the understanding of AS functionality, add a new regulatory layer to a fundamental cell biological process and provide a resource of alternative isoforms that control the secretory pathway.
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Affiliation(s)
- Alexander Neumann
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195 Berlin, Germany
| | - Magdalena Schindler
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195 Berlin, Germany
| | - Didrik Olofsson
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195 Berlin, Germany
| | - Ilka Wilhelmi
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), 14558 Nuthetal, Germany
| | - Annette Schürmann
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), 14558 Nuthetal, Germany
| | - Florian Heyd
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195 Berlin, Germany
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26
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Rouhani MH, Hadi A, Ghaedi E, Salehi M, Mahdavi A, Mohammadi H. Do probiotics, prebiotics and synbiotics affect adiponectin and leptin in adults? A systematic review and meta-analysis of clinical trials. Clin Nutr 2018; 38:2031-2037. [PMID: 30352747 DOI: 10.1016/j.clnu.2018.09.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/27/2018] [Accepted: 09/30/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Human studies have reported controversial findings regarding the health promoting effects of probiotic, prebiotic and synbiotic on adiponectin and leptin levels. This systematic review and meta-analysis was conducted to understand the effect of probiotics, prebiotics or synbiotics on adiponectin and leptin levels in adults. METHODS Electronic searches were performed in PubMed, Scopus, Web of Science, Cochrane Library and Google scholar up to February 11, 2018 without any restriction. Controlled clinical trials, in any age of adults, which reported the effect of probiotic, prebiotic and synbiotic on serum level of adiponectin and leptin were included. As leptin and adiponectin were reported in different units across the studies, Hedges's adjusted g was used to calculate effect size. A random-effects model was used to pool calculated effect sizes. RESULTS Of 12 eligible studies, 10 publications focused on probiotics, and only 3 studies reported the effect of prebiotics (n = 2) or synbiotics (n = 1) on leptin and adiponectin. There were no significant changes in adiponectin (Hedges' g = -0.04; 95% CI: -0.27, 0.19) and leptin (Hedges' g = -0.30; 95% CI: -0.86, 0.26) in probiotic group compared with controls. Subgroup analyses ranged in heterogeneity from 0% to 93%, but no subgroup showed an effect of probiotics on adiponectin or leptin. CONCLUSION There were limited studies regarding the effect of prebiotic and synbiotic on adiponectin and leptin. Although previous studies reported several health promoting effects of probiotics, we could not find any pooled effect on adiponectin and leptin.
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Affiliation(s)
- Mohammad Hossein Rouhani
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amir Hadi
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mina Salehi
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atena Mahdavi
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamed Mohammadi
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Mellouk N, Ramé C, Delaveau J, Rat C, Maurer E, Froment P, Dupont J. Adipokines expression profile in liver, adipose tissue and muscle during chicken embryo development. Gen Comp Endocrinol 2018; 267:146-156. [PMID: 29953882 DOI: 10.1016/j.ygcen.2018.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/31/2018] [Accepted: 06/23/2018] [Indexed: 12/18/2022]
Abstract
In broiler chickens, the intense genetic selection for rapid growth has resulted in an increase in growth rate and fat deposition. Adipose tissue is now recognized as an important endocrine organ that secretes a variety of factors including adipokines. However, the expression pattern of these adipokines is unclear in chicken embryo development. In the present study, we determined the expression profile of three novel adipokines, NAMPT, RARRES2 and ADIPOQ, and their cognate receptors in metabolic tissues (liver, muscles and adipose tissue) of chicken embryo/chicks from 15 days of incubation (E15) to hatching (D0). From E15 to hatching, embryos gradually gained weight and started to develop subcutaneous adipose tissue at E15. We conducted western blot and RT-qPCR tests and found that ADIPOQ expression increased over time and was positively correlated with adipose tissue weight. In addition, NAMPT expression increased only in muscles. By using a new homemade chicken RARRES2 specific antibody we showed that RARRES2 protein levels increased specifically at hatching in adipose tissue, liver and pectoralis major and this was associated with an increase in the weight of embryo. Taken together, these results support a potential involvement of adipokines in metabolic regulation during chicken embryo development.
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Affiliation(s)
- Namya Mellouk
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Christelle Ramé
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Joël Delaveau
- INRA - Unité Expérimentale du Pôle d'Expérimentation Avicole de Tours, UEPEAT 1295, F-37380 Nouzilly, France
| | - Christophe Rat
- INRA - Unité Expérimentale du Pôle d'Expérimentation Avicole de Tours, UEPEAT 1295, F-37380 Nouzilly, France
| | - Eric Maurer
- Agro-Bio, 2 Allée de la Chavannerie, 45240 La Ferté Saint Aubin, France
| | - Pascal Froment
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Joëlle Dupont
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France.
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28
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Farsky PS, Hirata MH, Arnoni RT, Almeida AFS, Issa M, Lima PHO, Higuchi MDL, Lin-Wang HT. Persistent Inflammatory Activity in Blood Cells and Artery Tissue from Patients with Previous Bare Metal Stent. Arq Bras Cardiol 2018; 111:134-141. [PMID: 30020327 PMCID: PMC6122910 DOI: 10.5935/abc.20180119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 02/23/2018] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Studies have pointed out a higher mortality after coronary artery bypass surgery (CABG) in patients with stent. OBJECTIVE To evaluate inflammatory markers in peripheral blood cells and in coronary artery tissue samples obtained during CABG in patients with stent compared to controls. METHODS The case series consisted of two groups, one with previous stent implantation (n = 41) and one control (n = 26). The expression of the LIGHT, IL-6, ICAM, VCAM, CD40, NFKB, TNF, IFNG genes was analyzed in peripheral blood cells collected preoperatively. The coronary artery was evaluated for: interleukin-6, ICAM, VCAM, CD40, NFKB, TNF-alpha and IFN-gamma by immunohistochemistry. A total of 176 tissue samples were grouped for analysis in: A1- arteries with stent (n = 38); A2- native arteries from patients with stent in another artery (n = 68); and A3- arteries without stent from controls undergoing routinely CABG surgery (n = 70). A significance level of 0.05 was adopted. RESULTS Patients with stent showed higher TNF (p = 0.03) and lower CD40 gene expression (p = 0.01) in peripheral blood cells than controls without stent. In coronary artery samples, the TNF-alpha protein staining was higher in the group A1, not only in the intima-media layer (5.16 ± 5.05 vs 1.90 ± 2.27; p = 0.02), but also in the adipose tissue (6.69 ± 3.87 vs 2.27 ± 4.00; p < 0.001). Furthermore, group A1 had a higher interleukin-6 protein staining in adipose tissue than group A3 (p = 0.04). CONCLUSION We observed a persistently higher systemic TNF expression associated with exacerbated TNF-alpha and interleukin-6 local production in patients with stents. This finding may contribute to a worse clinical outcome.
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Affiliation(s)
| | - Mario H Hirata
- Laboratório de Investigação Molecular em Cardiologia, Instituto Dante Pazzanese de Cardiologia, São Paulo, SP - Brazil
| | | | | | - Mario Issa
- Instituto Dante Pazzanese de Cardiologia, São Paulo, SP - Brazil
| | | | - Maria de Lourdes Higuchi
- Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP - Brazil
| | - Hui T Lin-Wang
- Laboratório de Investigação Molecular em Cardiologia, Instituto Dante Pazzanese de Cardiologia, São Paulo, SP - Brazil
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Effects of SCFA on the DNA methylation pattern of adiponectin and resistin in high-fat-diet-induced obese male mice. Br J Nutr 2018; 120:385-392. [PMID: 29925443 DOI: 10.1017/s0007114518001526] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Specific adipokines, such as adiponectin and resistin, are secreted from adipose tissue and are associated with the development of obesity. Supplementation of dietary SCFA can prevent and reverse high-fat-diet (HFD)-induced obesity. However, it is not clear whether SCFA ameliorate abnormal expression of adiponectin and resistin in the obese state. The aim of this study was to investigate the effects of SCFA on adiponectin and resistin's expressions in diet-induced obese mice, as well as the potential mechanisms associated with DNA methylation. C57BL/6J male mice were fed for 16 weeks with five types of HFD (34·9 % fat by wt., 60 % kJ) - a control HFD and four HFD with acetate (HFD-A), propionate (HFD-P), butyrate (HFD-B) and their admixture (HFD-SCFA). Meanwhile, a low-fat diet (4·3 % fat by wt., 10 % kJ) was used as the control group. The reduced mRNA levels of adiponectin and resistin in the adipose tissue of the HFD-fed mice were significantly reversed by dietary supplementation of acetate, propionate, butyrate or their admixture to the HFD. Moreover, the expressional changes of adiponectin and resistin induced by SCFA were associated with alterations in DNA methylation at their promoters, which was mediated by reducing the expressions of enzyme-catalysed DNA methyltransferase (DNMT1, 3a, 3b) and the methyl-CpG-binding domain protein 2 (MBD2) and suppressing the binding of these enzymes to the promoters of adiponectin and resistin. Our results indicate that SCFA may correct aberrant expressions of adiponectin and resistin in obesity by epigenetic regulation.
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30
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Discovery of potential visfatin activators using in silico docking and ADME predictions as therapy for type 2 diabetes. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1016/j.bjbas.2018.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Nazary-Vannani A, Ghaedi E, Mousavi SM, Teymouri A, Rahmani J, Varkaneh HK. The effect of L-carnitine supplementation on serum leptin concentrations: a systematic review and meta-analysis of randomized controlled trials. Endocrine 2018; 60:386-394. [PMID: 29453657 DOI: 10.1007/s12020-018-1559-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 02/02/2018] [Indexed: 01/16/2023]
Abstract
PURPOSE The actual effects of L-carnitine administration on leptin serum level is inconsistent. In order to assess the efficacy of L-carnitine supplementation on serum leptin we conducted a meta-analysis of randomized controlled trials (RCTs). METHODS Seven studies with 325 cases and 330 controls were included. The pooled weighted mean difference (WMD) was calculated by random-effects model. The heterogeneity across studies was evaluated by using Cochrane's Q and I2 tests. In addition, we carried out the metaninf command to test the effect of each individual study on the overall result. RESULTS L-carnitine supplementation seemed to have no significant effect on serum leptin concentrations (WMD: -0.565 ng/mL; 95% CI: -2.417 to 1.287, p = 0.550). However, between-study heterogeneity was higher across all studies (I2 = 84.3%, p < 0.0001). Subgroup analysis to find the sources of heterogeneity showed that L-carnitine dosage (g) ( < 2 g: I2 = 00.0%, p = 0.408), and study population (diabetes: I2 = 46.7%, p = 0.153, and non-diabetes: I2 = 15.1%, p = 0.317) were the potential sources of heterogeneity. Besides, a more significant reduction in serum leptin concentration was observed with a daily dose of ≥ 2 mg L-carnitine (WMD: -2.742 ng/mL; 95% CI: -3.039 to -2.444, p < 0.001), in diabetic patients (WMD: -2.946 ng/mL; 95% CI: -3.254 to -2.638, p < 0.001), and with intervention duration <12 weeks (WMD: -2.772 ng/mL; 95% CI: -3.073 to -2.471, p < 0.001). CONCLUSION L-carnitine consumption does not reduce serum leptin significantly. However, a significant effect on leptin was observed in diabetic patients and patients who received doses more than 3 mg per day in the course of <12 weeks.
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Affiliation(s)
- Ali Nazary-Vannani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Ehsan Ghaedi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Seyed Mohammad Mousavi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Alireza Teymouri
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jamal Rahmani
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Kord Varkaneh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
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Zhang S, Cao H, Li Y, Jing Y, Liu S, Ye C, Wang H, Yu S, Peng C, Hui L, Wang YC, Zhang H, Guo F, Zhai Q, Wang H, Huang R, Zhang L, Jiang J, Liu W, Ying H. Metabolic benefits of inhibition of p38α in white adipose tissue in obesity. PLoS Biol 2018; 16:e2004225. [PMID: 29750781 PMCID: PMC5965899 DOI: 10.1371/journal.pbio.2004225] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 05/23/2018] [Accepted: 04/09/2018] [Indexed: 01/22/2023] Open
Abstract
p38 has long been known as a central mediator of protein kinase A (PKA) signaling in brown adipocytes, which positively regulate the transcription of uncoupling protein 1 (UCP-1). However, the physiological role of p38 in adipose tissues, especially the white adipose tissue (WAT), is largely unknown. Here, we show that mice lacking p38α in adipose tissues display a lean phenotype, improved metabolism, and resistance to diet-induced obesity. Surprisingly, ablation of p38α causes minimal effects on brown adipose tissue (BAT) in adult mice, as evident from undetectable changes in UCP-1 expression, mitochondrial function, body temperature (BT), and energy expenditure. In contrast, genetic ablation of p38α in adipose tissues not only markedly facilitates the browning in WAT upon cold stress but also prevents diet-induced obesity. Consistently, pharmaceutical inhibition of p38α remarkably enhances the browning of WAT and has metabolic benefits. Furthermore, our data suggest that p38α deficiency promotes white-to-beige adipocyte reprogramming in a cell-autonomous manner. Mechanistically, inhibition of p38α stimulates the UCP-1 transcription through PKA and its downstream cAMP-response element binding protein (CREB), which form a positive feedback loop that functions to reinforce the white-to-beige phenotypic switch during cold exposure. Together, our study reveals that inhibition of p38α is able to promote WAT browning and confer metabolic benefits. Our study also indicates that p38α in WAT represents an exciting pharmacological target to combat obesity and metabolic diseases. The functional brown adipose tissue (BAT) identified in human adults consists of not only classic brown adipocytes but also brown-like adipocytes (beige adipocytes), both of which are important for energy homeostasis. Due to the same ability to convert fat into heat as brown adipocytes, beige adipocytes have been considered as a novel pharmacological target to combat obesity. Growing evidence suggests that promoting the development and formation of beige adipocytes in white adipose tissue (WAT), also called the browning of WAT, is able to prevent diet-induced obesity and improve metabolism in rodents. Thus, understanding the molecular basis for the regulation of browning in WAT may help us to develop new strategies to counteract obesity and metabolic diseases. In this study, adipocyte-specific p38α knockout (Fp38αKO) mice are generated that display a lean phenotype, improved metabolism, and resistance to diet-induced obesity. Interestingly, we found that adipocyte p38α deficiency facilitates the browning in WAT. Then, we show that pharmaceutical inhibition of p38α enhances the browning in WAT and has metabolic benefits. We propose that inhibiting p38α in WAT, possibly combined with cold exposure, could constitute an exciting pharmacological target to combat obesity and metabolic diseases.
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Affiliation(s)
- Shengjie Zhang
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hongchao Cao
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yan Li
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yanyan Jing
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Shengnan Liu
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Cheng Ye
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hui Wang
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Shuxian Yu
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chengyuan Peng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Lijian Hui
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yu-cheng Wang
- Shanghai Xuhui Central Hospital, Shanghai Clinical Center, Chinese Academy of Sciences, Shanghai, China
| | - Haibing Zhang
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Feifan Guo
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qiwei Zhai
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hui Wang
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, China
| | - Ruimin Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ling Zhang
- Department of Head and Neck Surgery, Fudan University Cancer Center and Department of Oncology, Fudan University, Shanghai Medical College, Shanghai, China
| | - Jingjing Jiang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wei Liu
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hao Ying
- CAS Key laboratory of nutrition, metabolism and food safety, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, China
- * E-mail:
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Ma H, Zhang G, Mou C, Fu X, Chen Y. Peripheral CB1 Receptor Neutral Antagonist, AM6545, Ameliorates Hypometabolic Obesity and Improves Adipokine Secretion in Monosodium Glutamate Induced Obese Mice. Front Pharmacol 2018; 9:156. [PMID: 29615900 PMCID: PMC5869198 DOI: 10.3389/fphar.2018.00156] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/13/2018] [Indexed: 12/14/2022] Open
Abstract
Effect of peripheral cannabinoid receptor 1 (CB1R) blockade by AM6545 in the monosodium glutamate (MSG)-induced hypometabolic and hypothalamic obesity was observed, and the impact on intraperitoneal adipose tissue and adipokines was investigated. The MSG mice is characterized by excessive abdominal obesity, and combined with dyslipidemia and insulin resistance. 3-Week AM6545 treatment dose-dependently decreased the body weight, intraperitoneal fat mass, and rectified the accompanied dyslipidemia include elevated serum triglyceride, total cholesterol, free fatty acids, and lowered LDLc level. Glucose intolerance and hyperinsulinemia were also alleviated. But AM6545 didn’t affect the food-intake consistently through the experiment. In line with the reduction on fat mass, the size of adipocyte was reduced markedly. Most interestingly, AM6545 showed significant improvement on levels of circulating adipokines including lowering leptin, asprosin and TNFα, and increasing HMW adiponectin. Correspondingly, dysregulated gene expression of lipogenesis, lipolysis, and adipokines in the adipose tissue were nearly recovered to normal level after AM6545 treatment. Additionally, western blot analysis revealed that AM6545 corrected the elevated CB1R and PPARγ protein expression, while increased the key energy uncoupling protein UCP1 expression in adipose tissue. Taken together, the current study indicates that AM6545 induced a comprehensive metabolic improvement in the MSG mice including counteracting the hypometabolic and hypothalamic obesity, and improving the accompanied dyslipidemia and insulin resistance. One key underlying mechanism is related to ameliorate on the metabolic deregulation of adipose tissue, the synthesis and secretion of adipokines were thus rectified, and finally the catabolism was increased and the anabolism was reduced in intraperitoneal adipose tissue. Findings from this study will provide the valuable information about peripheral CB1R antagonist in managing hypometabolic obesity.
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Affiliation(s)
- Haiming Ma
- Department of Pharmacy, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Guina Zhang
- Linyi City 120 Emergency Command Center, Linyi, China
| | | | - Xiujuan Fu
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Yadan Chen
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
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Identification and expression patterns of adipokine genes during adipocyte differentiation in the Tibetan goat ( Capra hircus ). Gene 2018; 643:17-25. [DOI: 10.1016/j.gene.2017.11.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/13/2017] [Accepted: 11/28/2017] [Indexed: 02/08/2023]
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Dong Z, Gong H, Chen Y, Wu H, Wu J, Deng Y, Song X. LH-21, A Peripheral Cannabinoid Receptor 1 Antagonist, Exerts Favorable Metabolic Modulation Including Antihypertensive Effect in KKAy Mice by Regulating Inflammatory Cytokines and Adipokines on Adipose Tissue. Front Endocrinol (Lausanne) 2018; 9:167. [PMID: 29731737 PMCID: PMC5920035 DOI: 10.3389/fendo.2018.00167] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 03/28/2018] [Indexed: 12/21/2022] Open
Abstract
Patients with obesity are susceptible to hypertension and diabetes. Over-activation of cannabinoid receptor 1 (CB1R) in adipose tissue is proposed in the pathophysiology of metabolic disorders, which led to the metabolic dysfunction of adipose tissue and deregulated production and secretion of adipokines. In the current study, we determined the impact of LH-21, a representative peripheral CB1R antagonist, on the obesity-accompanied hypertension and explored the modulatory action of LH-21 on the adipose tissue in genetically obese and diabetic KKAy mice. 3-week LH-21 treatment significantly decreased blood pressure with a concomitant reduction in body weight, white adipose tissue (WAT) mass, and a slight loss on food intake in KKAy mice. Meanwhile, glucose handling and dyslipidemia were also markedly ameliorated after treatment. Gene expression of pro-inflammatory cytokines in WAT and the aortae were both attenuated apparently by LH-21, as well the mRNA expression of adipokines (lipocalin-2, leptin) in WAT. Concomitant amelioration on the accumulation of lipocalin-2 was observed in both WAT and aortae. In corresponding with this, serum inflammatory related cytokines (tumor necrosis factor α, IL-6, and CXCL1), and lipocalin-2 and leptin were lowered notably. Thus according to current results, it can be concluded that the peripheral CB1R antagonist LH-21 is effective in managing the obesity-accompanied hypertension in KKAy mice. These metabolic benefits are closely associated with the regulation on the production and secretion of inflammatory cytokines and adipokines in the WAT, particularly alleviated circulating lipocalin-2 and its accumulation in aortae.
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Affiliation(s)
- Ziqi Dong
- Department of Cardiology, Jinshan Hospital of FuDan University, Shanghai, China
| | - Hui Gong
- Department of Cardiology, Jinshan Hospital of FuDan University, Shanghai, China
- *Correspondence: Hui Gong, ; Xinmao Song,
| | - Yadan Chen
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Hong Wu
- Department of Cardiology, Jinshan Hospital of FuDan University, Shanghai, China
| | - Jun Wu
- Department of Cardiology, Jinshan Hospital of FuDan University, Shanghai, China
| | - Yinghong Deng
- Department of Cardiology, Jinshan Hospital of FuDan University, Shanghai, China
| | - Xinmao Song
- Department of Radiation Oncology, Eye, Ear, Nose & Throat, Hospital of FuDan University, Shanghai, China
- *Correspondence: Hui Gong, ; Xinmao Song,
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Pfützner A, Schipper D, Pansky A, Kleinfeld C, Roitzheim B, Tobiasch E. Mesenchymal Stem Cell Differentiation into Adipocytes Is Equally Induced by Insulin and Proinsulin In Vitro. Int J Stem Cells 2017; 10:154-159. [PMID: 29186653 PMCID: PMC5741196 DOI: 10.15283/ijsc17033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2017] [Indexed: 12/29/2022] Open
Abstract
Background and Objectives In advanced β-cell dysfunction, proinsulin is increasingly replacing insulin as major component of the secretion product. It has been speculated that proinsulin has at least the same adipogenic potency than insulin, leading to an increased tendency of lipid tissue formation in patients with late stage β-cell dysfunction. Methods and Results Mesenchymal stem cells obtained from liposuction material were grown in differentiation media containing insulin (0.01 μmol), proinsulin (0.01 μmol) or insulin+proinsulin (each 0.005 μmol). Cell culture supernatants were taken from these experiments and an untreated control at weeks 1, 2, and 3, and were stored at −80°C until analysis. Cell differentiation was microscopically supervised and adiponectin concentrations were measured as marker for differentiation into mature lipid cells. This experiment was repeated three times. No growth of lipid cells and no change in adiponectin values was observed in the negative control group (after 7/14/12 days: 3.2±0.5/3.3±0.1/4.4±0.5 ng/ml/12 h). A continuous differentiation into mature adipocytes (also confirmed by Red-Oil-staining) and a corresponding increase in adiponectin values was observed in the experiments with insulin (3.6±1.9/5.1±1.4/13.3±1.5 ng/ml/12 h; p<0.05 week 1 vs. week 3) and proinsulin (3.3±1.2/3.5±0.3/12.2±1.2 ng/ml/12 h; p<0.05). Comparable effects were seen with the insulin/proinsulin combination. Conclusions Proinsulin has the same adipogenic potential than insulin in vitro. Proinsulin has only 10~20% of the glucose-lowering effect of insulin. It can be speculated that the adipogenic potential of proinsulin may be a large contributor to the increased body weight problems in patients with type 2 diabetes and advanced β-cell dysfunction.
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Affiliation(s)
- Andreas Pfützner
- Pfützner Science & Health Institute, Mainz, Germany.,Technical University of Applied Sciences, Bingen, Germany
| | | | - Andreas Pansky
- Bonn-Rhein-Sieg University of Applied Sciences, Rheinbach, Germany
| | | | | | - Edda Tobiasch
- Bonn-Rhein-Sieg University of Applied Sciences, Rheinbach, Germany
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Akgün S, Köken T, Kahraman A. Evaluation of adiponectin and leptin levels and oxidative stress in bipolar disorder patients with metabolic syndrome treated by valproic acid. J Psychopharmacol 2017; 31:1453-1459. [PMID: 28875764 DOI: 10.1177/0269881117715608] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION An increased risk for metabolic syndrome (MS) has been described for people with psychotic and mood disorders. The aim of this study was to determine the influence of valproic acid (VPA) treatment on adiponectin, leptin levels and oxidative stress in bipolar disorder (BD). METHODS Forty patients with BD receiving VPA monotherapy and 20 healthy control subjects were included in this study. BD patients were divided into two groups with and without MS as group 1 and group 2, respectively. Twenty BD patients diagnosed according to the Diagnostic and Statistical Manual for Mental Disorders (DSM IV) were assessed for MS according to the National Cholesterol Education Program (NCEP) Adult Treatment Panel (ATP III) criteria. Adiponectin, leptin, protein carbonyls, sulfhydryl (-SH) and malondialdehyde (MDA) levels were measured in 40 BD patients and 20 control subjects. RESULTS Serum adiponectin levels were significantly lower in group 1 patients than in group 2 and control subjects ( p<.001). Serum leptin levels were significantly higher in group 1 patients than in group 2 and control subjects ( p<.001). Serum -SH levels were significantly lower in group 2 patients than in group 1 ( p<.001) and control subjects ( p<.05). Serum carbonyl levels were significantly higher in group 1 and group 2 patients than in control subjects ( p<.001). Serum MDA levels were significantly higher in group 1 patients than in group 2 and control subjects ( p<.001). CONCLUSION These results provide further evidence that VPA treatment for patients with BD contributed to the metabolic disturbances, such as the decreased serum adiponectin and -SH levels, as well as the increased serum leptin, MDA and carbonyl levels.
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Affiliation(s)
- Sema Akgün
- Afyon Kocatepe University, Faculty of Medicine, Department of Medical Biochemistry, Afyonkarahisar, Turkey
| | - Tülay Köken
- Afyon Kocatepe University, Faculty of Medicine, Department of Medical Biochemistry, Afyonkarahisar, Turkey
| | - Ahmet Kahraman
- Afyon Kocatepe University, Faculty of Medicine, Department of Medical Biochemistry, Afyonkarahisar, Turkey
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Huang X, Jiang D, Zhu Y, Fang Z, Che L, Lin Y, Xu S, Li J, Huang C, Zou Y, Li L, Wu D, Feng B. Chronic High Dose Zinc Supplementation Induces Visceral Adipose Tissue Hypertrophy without Altering Body Weight in Mice. Nutrients 2017; 9:nu9101138. [PMID: 29057818 PMCID: PMC5691754 DOI: 10.3390/nu9101138] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/30/2017] [Accepted: 10/12/2017] [Indexed: 01/09/2023] Open
Abstract
The trace element zinc plays an important role in human life. Zinc deficiency impairs growth, reproduction, metabolism and immunity in both human and animals. Thus, zinc supplementation is recommended in daily life. However, the effect of long-term chronic zinc supplementation on adipose homeostasis has not been well elucidated. In the current study, mice were supplemented with zinc sulfate in the drinking water for 20 weeks. The results suggested that chronic zinc supplementation impaired systemic glucose clearance after exogenous insulin or glucose challenges, as compared to the control mice. Further study revealed that chronic zinc supplementation made no difference to body weight, but increased visceral adipose tissue weight and adipocyte size. In addition, gene expression of leptin and IL6 in the visceral adipose tissue of zinc-supplemented mice were higher than those of control mice. Moreover, serum level of leptin of the zinc-supplemented mice was twice as high as that of the control mice. Besides, phosphorylation level of AKT T308 was attenuated in the perirenal adipose tissue of zinc-supplemented mice. In comparison, the expression of macrophage marker genes and lipogenic genes were not affected by chronic zinc supplementation, but the protein levels of FAS and SCD1 decreased or tended to decrease in the perirenal adipose tissue of zinc-supplemented mice, as compared to the control mice. Our findings suggest that chronic high dose zinc supplementation induces visceral adipose tissue hypertrophy and impairs AKT signaling in perirenal adipose tissue.
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Affiliation(s)
- Xiaohua Huang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease-Resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.
| | - Dandan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yingguo Zhu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zhengfeng Fang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Lianqiang Che
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yan Lin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Shengyu Xu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Jian Li
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Chao Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yuanfeng Zou
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Lixia Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - De Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease-Resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease-Resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.
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Castro É, Silva TEO, Festuccia WT. Critical review of beige adipocyte thermogenic activation and contribution to whole-body energy expenditure. Horm Mol Biol Clin Investig 2017; 31:/j/hmbci.ahead-of-print/hmbci-2017-0042/hmbci-2017-0042.xml. [PMID: 28862985 DOI: 10.1515/hmbci-2017-0042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/17/2017] [Indexed: 12/30/2022]
Abstract
Beige (or brite, "brown in white") adipocytes are uncoupling protein 1 (UCP1)-positive cells residing in white adipose depots that, depending on the conditions, behave either as classic white adipocytes, storing energy as lipids, or as brown adipocytes, dissipating energy from oxidative metabolism as heat through non-shivering thermogenesis. Because of their thermogenic potential and, therefore, possible usage to treat metabolic diseases such as obesity and type 2 diabetes, beige cells have attracted the attention of many scientists worldwide aiming to develop strategies to safely recruit and activate their thermogenic activity. Indeed, in recent years, a large variety of conditions, molecules (including nutrients) and signaling pathways were reported to promote the recruitment of beige adipocytes. Despite of those advances, the true contribution of beige adipocyte thermogenesis to whole-body energy expenditure is still not completely defined. Herein, we discuss some important aspects that should be considered when studying beige adipocyte biology and the contribution to energy balance and whole-body metabolism.
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Wang Y, Ma XL, Lau WB. Cardiovascular Adiponectin Resistance: The Critical Role of Adiponectin Receptor Modification. Trends Endocrinol Metab 2017; 28:519-530. [PMID: 28473178 PMCID: PMC6391995 DOI: 10.1016/j.tem.2017.03.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 03/01/2017] [Accepted: 03/28/2017] [Indexed: 12/23/2022]
Abstract
For the past two decades, a great deal of research has been published concerning adiponectin (APN), an abundant protein responsible for regulating numerous biologic functions including antioxidative, antinitrative, anti-inflammatory, and cardioprotective effects. A review of APN and its two major receptors is timely because of new findings concerning the mechanisms by which APN signaling may be altered in pathologic processes such as diabetes and heart failure. In this review we elaborate on currently known information regarding the physiologic role of APN and the known mechanisms underlying pathologic APN resistance - namely, APN receptor downregulation and phosphorylation - and provide insight regarding the future directions of APN research including an assessment of the clinical applicability of preventing pathologic post-translational modification of the APN receptor.
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Affiliation(s)
- Yajing Wang
- Department of Emergency Medicine, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107, USA
| | - Xin L Ma
- Department of Emergency Medicine, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107, USA
| | - Wayne Bond Lau
- Department of Emergency Medicine, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107, USA.
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Imamura H, Nagayama D, Ishihara N, Tanaka S, Watanabe R, Watanabe Y, Sato Y, Yamaguchi T, Ban N, Kawana H, Ohira M, Endo K, Saiki A, Shirai K, Tatsuno I. Resveratrol attenuates triglyceride accumulation associated with upregulation of Sirt1 and lipoprotein lipase in 3T3-L1 adipocytes. Mol Genet Metab Rep 2017; 12:44-50. [PMID: 28580300 PMCID: PMC5448575 DOI: 10.1016/j.ymgmr.2017.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 11/03/2022] Open
Abstract
AIM We aimed to investigate the effect of resveratrol (Rsv) on expression of genes regulating triglyceride (TG) accumulation and consumption in differentiated 3T3-L1 preadipocytes. METHODS 3T3-L1 preadipocytes were cultured in DMEM supplemented with 10% fetal calf serum. Upon reaching confluence, cells were induced to differentiate for 4 days, cultured for 10 days for TG accumulation, and then incubated with Rsv (0, 25 or 50 μM) for 3 days. TG accumulation was analyzed by Oil Red-O staining. To understand how Rsv regulates TG accumulation and consumption, changes in gene and protein expressions of several factors associated with free fatty acid (FFA) uptake and β-oxidation were investigated by real-time RT-PCR and Western blot. For further elucidation of underlying mechanisms, we also investigated gene expressions using Sirtuin1 (Sirt1) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) siRNA. RESULTS Rsv dose dependently enhanced Sirt1 expression and reduced TG accumulation. Rsv-induced reduction of TG accumulation was abolished by inhibition of Sirt1 and PGC1α. Rsv also enhanced expressions of genes involved in FFA uptake [peroxisome proliferator-activated receptor-gamma (PPARγ) and lipoprotein lipase] and in β-oxidation regulation [PGC1-α and carnitine palmitoyl-transferase 1a (CPT1a)]. All these effects were abolished by Sirt1 inhibition. CONCLUSION The present results suggest that Rsv may augment synthesis and oxidation of fatty acid, and possibly increases energy utilization efficiency in adipocytes through activation of Sirt1. The present study may provide meaningful evidence supporting the efficacy of Rsv in the treatment of obesity.
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Affiliation(s)
- Haruki Imamura
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Daiji Nagayama
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan.,Center of Endocrinology and Metabolism, Shin-Oyama City Hospital, Tochigi, Japan
| | - Noriko Ishihara
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Syo Tanaka
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Rena Watanabe
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Yasuhiro Watanabe
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Yuta Sato
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Takashi Yamaguchi
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Noriko Ban
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Hidetoshi Kawana
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Masahiro Ohira
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Kei Endo
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Atsuhito Saiki
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | | | - Ichiro Tatsuno
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
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