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Koyama T, Maekawa M, Ozaki E, Kuriyama N, Uehara R. Daily Consumption of Coffee and Eating Bread at Breakfast Time Is Associated with Lower Visceral Adipose Tissue and with Lower Prevalence of Both Visceral Obesity and Metabolic Syndrome in Japanese Populations: A Cross-Sectional Study. Nutrients 2020; 12:E3090. [PMID: 33050584 PMCID: PMC7599629 DOI: 10.3390/nu12103090] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The study aimed to investigate the association between daily consumption of coffee or green tea, with and without habitual bread consumption for breakfast, and components and prevalence of metabolic syndrome in Japanese populations. METHODS The study population consisted of 3539 participants (1239 males and 2300 females). Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using logistic regression analyses to evaluate the associations of daily coffee and green tea consumption with the prevalence of obesity, visceral obesity, and metabolic syndrome. RESULTS Coffee consumption was associated with significantly lower proportions of visceral obesity (OR: 0.746, CI: 0.588-0.947) and metabolic syndrome (OR: 0.706, CI: 0.565-0.882). On the other hand, green tea was not associated with visceral obesity (OR: 1.105, CI: 0.885-1.380) or metabolic syndrome (OR: 0.980, CI: 0.796-1.206). The combination of daily drinking coffee and eating bread at breakfast time was associated with significantly lower proportions of obesity (OR: 0.613, CI: 0.500-0.751) (p = 0.911 for interaction), visceral obesity (OR: 0.549, CI: 0.425-0.710) (p = 0.991 for interaction), and metabolic syndrome (OR: 0.586, CI: 0.464-0.741) (p = 0.792 for interaction). CONCLUSION Coffee consumption was significantly associated with lower visceral adipose tissue and lower proportions of visceral obesity, but the same was not true for green tea consumption. Furthermore, in combination with coffee consumption, the addition of eating bread at breakfast time significantly lowered proportions of visceral obesity and metabolic syndrome, although there was no interaction between coffee and bread.
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Affiliation(s)
- Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan; (M.M.); (E.O.); (N.K.); (R.U.)
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Cross-sectional association between sugar-sweetened beverage intake and cardiometabolic biomarkers in US women. Br J Nutr 2019; 119:570-580. [PMID: 29508692 DOI: 10.1017/s0007114517003841] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Few studies have evaluated the relationships between intake of sugar-sweetened beverages (SSB) and intermediate biomarkers of cardiometabolic risk. Associations between artificially sweetened beverages (ASB) and fruit juice with cardiometabolic biomarkers are also unclear. We investigated habitual SSB, ASB and fruit juice intake in relation to biomarkers of hepatic function, lipid metabolism, inflammation and glucose metabolism. We analysed cross-sectional data from 8492 participants in the Nurses' Health Study who were free of diabetes and CVD. Multivariate linear regression was used to assess the associations of SSB, ASB and fruit juice intake with concentrations of fetuin-A, alanine transaminase, γ-glutamyl transferase, TAG, HDL-cholesterol, LDL-cholesterol, total cholesterol, C-reactive protein (CRP), intracellular adhesion molecule 1 (ICAM-1), vascular cell adhesion protein 1, adiponectin, insulin and HbA1c as well as total cholesterol:HDL-cholesterol ratio. More frequent intake of SSB was significantly associated with higher concentrations of fetuin-A, TAG, CRP, ICAM-1, adiponectin and insulin, a higher total cholesterol:HDL-cholesterol ratio, and a lower concentration of HDL-cholesterol (P trend ranges from <0·0001 to 0·04) after adjusting for demographic, medical, dietary and lifestyle variables. ASB intake was marginally associated with increased concentrations of CRP (P trend=0·04) and adiponectin (P trend=0·01). Fruit juice intake was associated with increased concentrations of TAG and HbA1c and a lower concentration of adiponectin (P trend ranges from <0·0001 to 0·01). In conclusion, habitual intake of SSB was associated with adverse levels of multiple cardiometabolic biomarkers. Associations between ASB and fruit juice with cardiometabolic risk markers warrant further exploration.
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Okauchi Y, Ishibashi C, Shu K, Adachi S, Mineo I. Decreased Serum Adiponectin Level during Catecholamine Crisis in an Obese Patient with Pheochromocytoma. Intern Med 2018; 57:1253-1257. [PMID: 29279477 PMCID: PMC5980805 DOI: 10.2169/internalmedicine.9089-17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We herein report the case of a 37-year-old man with both pheochromocytoma and visceral fat accumulation and describe the sequential changes in his adiponectin levels throughout the clinical course from catecholamine crisis until the follow-up for adrenalectomy. His adiponectin level decreased during catecholamine crisis and increased after adrenalectomy. However, his adiponectin level decreased again at two years postoperatively when his visceral fat area greatly increased. This case suggests that catecholamines and visceral fat volume may affect adiponectin metabolism in subjects with pheochromocytoma, which may precipitate cardiovascular complications in this endocrine disease.
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Affiliation(s)
| | | | - Kunihiko Shu
- Diabetes Center, Toyonaka Municipal Hospital, Japan
| | - Shiro Adachi
- Pathology Section, Toyonaka Municipal Hospital, Japan
| | - Ikuo Mineo
- Diabetes Center, Toyonaka Municipal Hospital, Japan
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Eshraghian A, Iravani S, Azimzadeh P. The Association between Angiotensin II Type 1 Receptor Gene A1166C Polymorphism and Non-alcoholic Fatty Liver Disease and Its Severity. Middle East J Dig Dis 2018; 10:96-104. [PMID: 30013758 PMCID: PMC6040929 DOI: 10.15171/mejdd.2018.97] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 03/20/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Genetic predisposition may have important role in pathogenesis of non-alcoholic fatty liver disease (NAFLD). Angiotensin II type I receptor (AGTR1) has been known to involve in the process of liver steatosis and fibrosis. This study aimed to investigate the association between AGTR1 A1166C polymorphism and NAFLD. METHODS A cross-sectional study was conducted during May 2014-May 2015 among healthy adults referring to our radiology clinic for abdominal sonography. AGTR1 A1166C polymorphism was evaluated in subjects with NAFLD and healthy individuals using allelic discrimination method. RESULTS 58 subjects with NAFLD were compared with 88 healthy individuals without NAFLD. The frequency of AA and CC genotypes of AGTR1 was significantly higher in patients with NAFLD compared with controls (p = 0.029 and 0.042, respectively). C allele was more detected in subjects with NAFLD compared with the healthy controls (OR: 2.1; 95% CI: 1.23-3.61, p = 0.006). CC genotype (OR: 10.62; 95% CI: 1.05-106.57, p = 0.045) and C allele (OR: 6.81; 95% CI: 1.42- 32.48, p = 0.016) were also predictors of severe fatty liver disease in our study population. CONCLUSION Our results provide the first evidence that AGTR1 gene A1166C polymorphism not only is associated with NAFLD and but also may predict its severity.
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Affiliation(s)
- Ahad Eshraghian
- Department of Gastroenterology and Hepatology, AJA University of Medical Sciences, Tehran, Iran.,Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahrokh Iravani
- Department of Gastroenterology and Hepatology, AJA University of Medical Sciences, Tehran, Iran
| | - Pedram Azimzadeh
- Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Han SJ, Boyko EJ, Fujimoto WY, Kahn SE, Leonetti DL. Low Plasma Adiponectin Concentrations Predict Increases in Visceral Adiposity and Insulin Resistance. J Clin Endocrinol Metab 2017; 102:4626-4633. [PMID: 29029184 PMCID: PMC5718705 DOI: 10.1210/jc.2017-01703] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/20/2017] [Indexed: 12/01/2022]
Abstract
CONTEXT Plasma adiponectin concentration has been shown to be inversely associated with body mass index (BMI) and insulin resistance in cross-sectional research. However, it is unclear whether adiponectin predicts future body composition and insulin resistance. OBJECTIVE We aimed to investigate the potential relationship between adiponectin concentration and future regional body fat distribution and insulin resistance. DESIGN AND SETTING This was a community-based prospective cohort study with 5 years of follow-up. PARTICIPANTS A total of 218 Japanese Americans without diabetes (79 men, 139 women, mean age 51.7 ± 10.1 years) were assessed at baseline and after 5 years of follow-up. MAIN OUTCOME MEASURES Abdominal visceral and subcutaneous fat area and thigh subcutaneous fat area were measured by computed tomography (CT). Insulin resistance was evaluated by homeostasis model assessment 2 of insulin resistance (HOMA2-IR). Plasma total adiponectin was measured by radioimmunoassay. RESULTS Baseline adiponectin was inversely associated with abdominal visceral fat area (P = 0.037) and HOMA2-IR (P = 0.002) at 5 years in a multiple linear regression model after adjustment for baseline traits (including age, sex, BMI, abdominal visceral fat area, abdominal subcutaneous fat area, thigh subcutaneous fat area, HOMA2-IR) and weight change. However, no association was seen between baseline adiponectin concentration and BMI or other CT-measured regional fat depots at 5 years. CONCLUSIONS Low plasma adiponectin concentration independently predicted future abdominal visceral fat accumulation and increased insulin resistance in Japanese Americans.
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Affiliation(s)
- Seung Jin Han
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea 16499
- Seattle Epidemiologic Research and Information Center, VA Puget Sound Health Care System, Seattle, Washington 98108
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington 98195
| | - Edward J. Boyko
- Seattle Epidemiologic Research and Information Center, VA Puget Sound Health Care System, Seattle, Washington 98108
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington 98195
| | - Wilfred Y. Fujimoto
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington 98195
| | - Steven E. Kahn
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington 98195
- Hospital and Specialty Medicine Service, VA Puget Sound Health Care System, Seattle, Washington 98108
| | - Donna L. Leonetti
- Department of Anthropology, University of Washington, Seattle, Washington 98105
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Sato F, Maeda N, Yamada T, Namazui H, Fukuda S, Natsukawa T, Nagao H, Murai J, Masuda S, Tanaka Y, Obata Y, Fujishima Y, Nishizawa H, Funahashi T, Shimomura I. Association of Epicardial, Visceral, and Subcutaneous Fat With Cardiometabolic Diseases. Circ J 2017; 82:502-508. [PMID: 28954947 DOI: 10.1253/circj.cj-17-0820] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Excess of visceral fat is a central factor in the pathogenesis of metabolic syndrome (MetS) and atherosclerosis. However, little is known about how much epicardial fat affects cardiometabolic disorders in comparison with visceral or subcutaneous fat.Methods and Results:Participants suspected as having angina pectoris underwent cardiac computed tomography (CT) imaging. Of them, 374 subjects were analyzed the association of clinical characteristics and CT-based fat distribution measured as epicardial fat volume (EFV), visceral fat area (VFA), and subcutaneous fat area (SFA). EFV was highly associated with VFA (R=0.58). Serum adiponectin was significantly decreased in high VFA subjects (VFA ≥100 cm2) and was also reduced in the high EFV group (EFV ≥80 cm3). Among the low VFA groups, the numbers of subjects with diabetes and coronary atherosclerosis were increased in high EFV group. Among the low EFV groups, the numbers of subjects with diabetes, hyperuricemia, and coronary atherosclerosis were increased among the high VFA subjects. In an age-, sex-, and body mass index (BMI)-adjusted model, EFV was associated with dyslipidemia and MetS, and VFA was significantly associated with hypertension, dyslipidemia, MetS, and coronary atherosclerosis, while SFA was not related with coronary risks and atherosclerosis. CONCLUSIONS Epicardial fat accumulation may be a risk for coronary atherosclerosis in subjects without visceral fat accumulation. Visceral fat is the strongest risk for cardiometabolic diseases among the 3 types of fat depot.
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Affiliation(s)
- Fumi Sato
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Cardiology, KKR Otemae Hospital
| | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University
| | | | | | - Shiro Fukuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Tomoaki Natsukawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital
| | - Hirofumi Nagao
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Jun Murai
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Internal Medicine, Kawasaki Hospital
| | - Shigeki Masuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Yoshimitsu Tanaka
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Yoshinari Obata
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Yuya Fujishima
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Hitoshi Nishizawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Tohru Funahashi
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
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Natsukawa T, Maeda N, Fukuda S, Yamaoka M, Fujishima Y, Nagao H, Sato F, Nishizawa H, Sawano H, Hayashi Y, Funahashi T, Kai T, Shimomura I. Significant Association of Serum Adiponectin and Creatine Kinase-MB Levels in ST-Segment Elevation Myocardial Infarction. J Atheroscler Thromb 2017; 24:793-803. [PMID: 28100880 PMCID: PMC5556187 DOI: 10.5551/jat.38232] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Aims: Adiponectin, an adipocyte-specific secretory protein, abundantly exists in the blood stream while its concentration paradoxically decreases in obesity. Hypoadiponectinemia is one of risks of cardiovascular diseases. However, impact of serum adiponectin concentration on acute ischemic myocardial damages has not been fully clarified. The present study investigated the association of serum adiponectin and creatine kinase (CK)-MB levels in subjects with ST-segment elevation myocardial infarction (STEMI). Methods: This study is a physician-initiated observational study and is also registered with the University Hospital Medical Information Network (Number: UMIN 000014418). Patients were admitted to Senri Critical Care Medical Center, given a diagnosis of STEMI, and treated by primary percutaneous coronary intervention (PCI). Finally, 49 patients were enrolled and the association of serum adiponectin, CK-MB, and clinical features were mainly analyzed. Results: Serum adiponectin levels decreased rapidly and reached the bottom at 24 hours after recanalization. Such reduction of serum adiponectin was inversely correlated with the area under the curve (AUC) of serum CK-MB (p = 0.013). Serum adiponectin concentrations were inversely correlated with AUC of serum CK-MB. In multivariate analysis, serum adiponectin concentration on admission (p = 0.002) and collateral (p = 0.037) were significantly and independently correlated with serum AUC of CK-MB. Conclusion: Serum AUC of CK-MB in STEMI subjects was significantly associated with serum adiponectin concentration on admission and reduction of serum adiponectin levels from baseline to bottom. The present study may provide a possibility that serum adiponectin levels at acute phase are useful in the prediction for prognosis after PCI-treated STEMI subjects.
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Affiliation(s)
- Tomoaki Natsukawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital
| | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University
| | - Shiro Fukuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Masaya Yamaoka
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Yuya Fujishima
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Hirofumi Nagao
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Fumi Sato
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Hitoshi Nishizawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
| | - Hirotaka Sawano
- Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital
| | - Yasuyuki Hayashi
- Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital
| | - Tohru Funahashi
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University.,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University
| | - Tatsuro Kai
- Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University
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Esakkimuthu S, Mutheeswaran S, Arvinth S, Paulraj MG, Pandikumar P, Ignacimuthu S. Quantitative ethnomedicinal survey of medicinal plants given for cardiometabolic diseases by the non-institutionally trained siddha practitioners of Tiruvallur district, Tamil Nadu, India. JOURNAL OF ETHNOPHARMACOLOGY 2016; 186:329-342. [PMID: 27090346 DOI: 10.1016/j.jep.2016.04.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 04/09/2016] [Accepted: 04/12/2016] [Indexed: 05/13/2023]
Abstract
ETHNOBOTANICAL RELEVANCE The burden of cardiometabolic diseases such as dyslipidemia, hyperglycemia, hypertension, visceral obesity and atherosclerotic cardiovascular diseases and the use of traditional medicine for the management of such diseases are high in India; hence there is a need to document and analyze such therapies. AIM OF THE STUDY This study documented and analyzed the medicinal plants prescribed for cardiometabolic diseases by the non-institutionally trained siddha practitioners of Tiruvallur district of Tamil Nadu, India. METHODOLOGY The field survey was conducted between December 2014 to November 2015. Successive free listing assisted with field-walks was used to interview the informants. After assessing the sampling sufficiency using rarefaction curve analysis, indices such as Informant Consensus Factor (Fic) and Index of Agreement on Remedies (IAR) were calculated for the data. The indicators of informant's medicinal plant knowledge such as Shannon's index, equitability index, etc., were regressed with the demographic profile of the informants. RESULTS For this study 70 non-institutionally trained Siddha medical practitioners were approached; the data from 36 practitioners who were treating cardiometabolic diseases were documented. This study recorded the use of 188 species which were used to prepare 368 formulations to treat illnesses categorized under cardiometabolic diseases. In this, 53.04% claims were singletons. Regression analysis showed that single species dominance was reduced and the diversity of medicinal plants was increased with the increase in the age and experience. Increase in the years of formal education increased the equitability in the uses. The plants such as Nelumbo nucifera Gaertn. (cardiovascular diseases), Allium sativum L. (dyslipidemia), Cuminum cyminum L. (hypertension), Macrotyloma uniflorum Verdc. (obesity) and Azadirachta indica A. Juss. (type 2 diabetes) were the highly cited medicinal plants. CONCLUSION This survey has identified the plants most commonly used by Siddha practitioners of Tiruvallur district, Tamil Nadu, India for cardiometabolic diseases. The prevalence of chronic, non-communicable metabolic illnesses such as type 2 diabetes, hypertension and obesity are increasing worldwide due to the rapid changes in the lifestyle. These ailments require a life-long care and in such instances, people tend to use complementary therapies in most cases, alongside with conventional therapies. In view of the high use of traditional therapies for treating cardiometabolic illnesses, this study supports the need for more research to evaluate the potential benefits of the treatments and to identify any safety concern.
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Affiliation(s)
- S Esakkimuthu
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India
| | - S Mutheeswaran
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India
| | - S Arvinth
- Department of Botany, PSG College of Arts & Science, Coimbatore, Tamil Nadu 641 014, India
| | - M Gabriel Paulraj
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India
| | - P Pandikumar
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India.
| | - S Ignacimuthu
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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Nagahara K, Dobashi K, Ishikawa T, Nakano Y, Abe Y, Tanaka D, Itabashi K. AICAR Attenuates TNFα-Induced Inappropriate Secretion of Monocyte Chemoattractant Protein-1 and Adiponectin in 3T3-L1 Adipocytes. J Atheroscler Thromb 2016; 23:1345-1354. [PMID: 27170207 PMCID: PMC5221497 DOI: 10.5551/jat.34835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Aim: The increase in monocyte chemoattractant protein-1 (MCP-1) and the decrease in adiponectin production from hypertrophic adipocytes are associated with adipose tissue inflammation and its metabolic complications. The aim of this study was to determine whether 5-aminoimidazole-4-carboxamide 1-β-D-ribofuranoside (AICAR), an adenosine monophosphate-activated protein kinase (AMPK) activator, modulates these adipocytokine productions in tumor necrosis factor-α (TNFα)-treated adipocytes. Methods: AICAR and/or other reagents were added to the culture medium, and then, TNFα was added to fully differentiated 3T3-L1 adipocytes. The MCP-1 and adiponectin production in the culture supernatant was measured by ELISA. AMPK, phosphatidylinositol 3-kinase (PI3K), and nuclear factor-κB (NF-κB) activities were also assayed. Results: Treatment with TNFα increased MCP-1 and decreased adiponectin secretion dose-dependently in the 3T3-L1 adipocytes, and AICAR significantly inhibited these TNFα-mediated changes. Interestingly, metformin, another AMPK activator, did not have such effects on these adipocytokines. Both the AMPK and PI3K systems in the cells were significantly activated by the AICAR treatment, but the effects of AICAR on adipocytokines were not weakened by the addition of dorsomorphin, an AMPK inhibitor, or LY294002, a PI3K inhibitor. Pyrrolidine dithiocarbamate (PDTC), an NF-κB inhibitor, showed protective effects similar to those as AICAR. AICAR, but not metformin, significantly inhibited the TNFα-stimulated activation of NF-κB, and dorsomorphin did not change AICAR's effect. Conclusion: AICAR attenuates the TNFα-induced secretion of MCP-1 and adiponectin in 3T3-L1 adipocytes. The observed effects of AICAR seem to be mainly due to the inhibition of NF-κB activation rather than the activation of the AMPK pathway, at least in TNFα-treated adipocytes.
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Affiliation(s)
- Keiko Nagahara
- Department of Pediatrics, Showa University School of Medicine
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Fotbolcu H, Zorlu E. Nonalcoholic fatty liver disease as a multi-systemic disease. World J Gastroenterol 2016; 22:4079-4090. [PMID: 27122660 PMCID: PMC4837427 DOI: 10.3748/wjg.v22.i16.4079] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/02/2016] [Accepted: 03/02/2016] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. NAFLD includes a wide spectrum of liver conditions ranging from simple steatosis to nonalcoholic steatohepatitis and advanced hepatic fibrosis. NAFLD has been recognized as a hepatic manifestation of metabolic syndrome linked with insulin resistance. NAFLD should be considered not only a liver specific disease but also an early mediator of systemic diseases. Therefore, NAFLD is usually associated with cardiovascular disease, chronic kidney disease, type 2 diabetes, obesity, and dyslipidemia. NAFLD is highly prevalent in the general population and is associated with increased cardiovascular morbidity and mortality. The underlying mechanisms and pathogenesis of NAFLD with regard to other medical disorders are not yet fully understood. This review focuses on pathogenesis of NAFLD and its relation with other systemic diseases.
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Hobzová M, Salzman R, Stejskal D, Zapletalová J, Kolek V. Serum adiponectin level in obstructive sleep apnea: Relation of adiponectin to obesity and long-term continuous positive airway pressure therapy. Adv Med Sci 2016; 61:130-4. [PMID: 26674570 DOI: 10.1016/j.advms.2015.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 08/12/2015] [Accepted: 10/15/2015] [Indexed: 11/26/2022]
Abstract
PURPOSE The study aimed to determine the effect of OSA and obesity on the plasma levels of adiponectin and the long-term effect of CPAP on its plasma levels and obesity parameters. MATERIAL/METHODS A prospective observational study included 159 newly diagnosed OSA patients. The cohort was divided into CPAP treated (n=82) and control group (n=77). Both groups were examined at the beginning and a year later. The CPAP-treated patients were additionally tested after a month of therapy. The examinations included Epworth Sleepiness Scale questionnaire, anthropometric and polysomnographic measurements, and blood serum tests. Changes in the studied parameters of OSA, obesity, and adiponectin obtained at the beginning and after follow-up period were compared in each group. RESULTS In CPAP group, all studied OSA parameters improved already after a month of CPAP therapy. Contrarily, obesity parameters (except of neck and waist circumference) remained unchanged after CPAP therapy. Serum adiponectin levels dropped during CPAP therapy. In the control group, both obesity and OSA parameters did not show changes. The only exceptions were deteriorated mean SpO2 and decreased hip circumference. Adiponectin remained unchanged in this group. In neither group, the Spearman correlation analyses showed any association of serum adiponectin levels with obesity or OSA parameters, except of mean SpO2. CONCLUSIONS Only correlation found was between adiponectin and mean SpO2. Although CPAP therapy improves all OSA parameters, it did not change most obesity parameters. Additionally in the CPAP group, there was a significant drop in adiponectin levels, suggesting its protective role in this group of patients.
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12
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Cardiomyocyte Antihypertrophic Effect of Adipose Tissue Conditioned Medium from Rats and Its Abrogation by Obesity is Mediated by the Leptin to Adiponectin Ratio. PLoS One 2016; 11:e0145992. [PMID: 26731409 PMCID: PMC4701500 DOI: 10.1371/journal.pone.0145992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 12/12/2015] [Indexed: 12/02/2022] Open
Abstract
White adipocytes are known to function as endocrine organs by secreting a plethora of bioactive adipokines which can regulate cardiac function including the development of hypertrophy. We determined whether adipose tissue conditioned medium (ATCM) generated from the epididymal regions of normal rats can affect the hypertrophic response of cultured rat ventricular myocytes to endothelin-1 (ET-1) administration. Myocytes were treated with ET-1 (10 nM) for 24 hours in the absence or presence of increasing ATCM concentrations. ATCM supressed the hypertrophic response to ET-1 in a concentration-dependent manner, an effect enhanced by the leptin receptor antagonist and attenuated by an antibody against the adiponectin AdipoR1 receptor. Antihypertrophic effects were also observed with ATCM generated from perirenal-derived adipose tissue. However, this effect was absent in ATCM from adipose tissue harvested from corpulent JCR:LA-cp rats. Detailed analyses of adipokine content in ATCM from normal and corpulent rats revealed no differences in the majority of products assayed, although a significant increase in leptin concentrations concomitant with decreased adiponectin levels was observed, resulting in a 11 fold increase in the leptin to adiponectin ratio in ATCM from JCR:LA-cp. The antihypertrophic effect of ATCM was associated with increased phosphorylation of AMP-activated protein kinase (AMPK), an effect abrogated by the AdipoR1 antibody. Moreover, the antihypertrophic effect of ATCM was mimicked by an AMPK activator. There was no effect of ET-1 on mitogen-activated protein kinase (MAPK) activities 24 hour after its addition either in the presence or absence of ATCM. Our study suggests that adipose tissue from healthy subjects exerts antihypertrophic effects via an adiponectin–dependent pathway which is impaired in obesity, most likely due to adipocyte remodelling resulting in enhanced leptin and reduced adiponectin levels.
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Ko JKY, Li HWR, Lam KSL, Tam S, Lee VCY, Yeung TWY, Ho PC, Ng EHY. Serum adiponectin is independently associated with the metabolic syndrome in Hong Kong, Chinese women with polycystic ovary syndrome. Gynecol Endocrinol 2016; 32:390-4. [PMID: 26699091 DOI: 10.3109/09513590.2015.1126708] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE To evaluate the association of serum adiponectin level with the metabolic syndrome in Chinese women with polycystic ovary syndrome (PCOS). METHODS This was a cross-sectional study carried out in Hong Kong Chinese women with PCOS at a university-affiliated tertiary hospital between January 2010 and January 2011. Clinical and biochemical parameters of the women were analysed. Prediction of the metabolic syndrome was determined by receiver-operator characteristic (ROC) curves, univariate and multivariate logistic regression analyses. RESULTS A total of 116 women diagnosed to have PCOS were analysed. The area under the ROC curve of adiponectin for the prediction of metabolic syndrome was 0.820, 95% confidence interval (CI) 0.737-0.886. Univariate binary logistic regression showed that testosterone, sex hormone-binding globulin (SHBG), free androgen index (FAI), waist circumference, body mass index (BMI), quantitative insulin-sensitivity check index (QUICKI), homeostasis model assessment of insulin resistance (HOMA-IR) and adiponectin were significantly associated with the metabolic syndrome. On multivariate logistic regression analysis, adiponectin (p = 0.020), HOMA-IR, age (p = 0.011) and BMI (p = 0.019) were independently associated with the metabolic syndrome, but not FAI (p = 0.256). CONCLUSIONS Serum adiponectin is independently associated with the metabolic syndrome in Chinese women with PCOS. Further longitudinal follow-up studies are needed to determine whether serum adiponectin adds to the prediction of long-term cardiometabolic morbidity conferred by age, BMI and measures of insulin resistance.
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Affiliation(s)
- Jennifer Ka Yee Ko
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Hang Wun Raymond Li
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Karen Siu Ling Lam
- b Department of Medicine , The University of Hong Kong, Queen Mary Hospital , Hong Kong , and
| | - Sidney Tam
- b Department of Medicine , The University of Hong Kong, Queen Mary Hospital , Hong Kong , and
- c Department of Pathology and Clinical Biochemistry , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Vivian Chi Yan Lee
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Tracy Wing Yee Yeung
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Pak Chung Ho
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
| | - Ernest Hung Yu Ng
- a Department of Obstetrics and Gynaecology , The University of Hong Kong, Queen Mary Hospital , Hong Kong
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Membrane transporters in salivary exosomes and microvesicles as biomarkers of systemic or oral disease. J Oral Biosci 2014. [DOI: 10.1016/j.job.2014.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Matsuzawa Y. Obesity and metabolic syndrome: the contribution of visceral fat and adiponectin. ACTA ACUST UNITED AC 2014. [DOI: 10.2217/dmt.14.30] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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