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Iioka M, Fukuda S, Maeda N, Natsukawa T, Kita S, Fujishima Y, Sawano H, Nishizawa H, Shimomura I. Time-Series Change of Serum Soluble T-Cadherin Concentrations and Its Association with Creatine Kinase-MB Levels in ST-Segment Elevation Myocardial Infarction. J Atheroscler Thromb 2022; 29:1823-1834. [PMID: 35228485 PMCID: PMC9881537 DOI: 10.5551/jat.63305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
AIMS T-cadherin (T-cad) is a specific binding partner of adiponectin (APN), adipocyte-specific secretory protein. APN exhibits organ protection via the T-cad-dependent accumulation onto several tissues such as the aorta, heart, and muscle. Recently, for the first time, we showed that three forms (130, 100, and 30 kDa) of soluble T-cad existed in human serum and correlated with several clinical parameters in patients with type 2 diabetes. Nevertheless, the significance of soluble T-cad has not been elucidated in the acute stage of cardiovascular diseases. We herein examined soluble T-cad concentrations and investigated their clinical significance in patients with emergency hospital admission due to ST-segment elevation myocardial infarction (STEMI). METHODS This observational study enrolled 47 patients with STEMI who were treated via primary percutaneous coronary intervention (PCI). Soluble T-cad and APN concentrations were measured by using an enzyme-linked immunosorbent assay. This study is registered with the University Hospital Medical Information Network (Number: UMIN 000014418). RESULTS Serum concentrations of soluble 130 and 100 kDa T-cad rapidly and significantly decreased after hospitalization and reached the bottom at 72 h after admission (p<0.001 and p<0.001, respectively). The patients with high soluble T-cad and low APN concentrations on admission showed a significantly higher area under the curve of serum creatine kinase-MB (p<0.01). CONCLUSION Serum soluble T-cad concentration changed dramatically in patients with STEMI, and the high T-cad and low APN concentrations on admission were associated with the myocardial infarction size. Further study is needed to investigate the usefulness of categorizing patients with STEMI by serum T-cad and APN for the prediction of severe prognoses.
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Affiliation(s)
- Masahito Iioka
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shiro Fukuda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan,Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tomoaki Natsukawa
- Department of Emergency and Intensive care, Yodogawa Christian Hospital, Osaka, Japan
| | - Shunbun Kita
- Department of Adipose Management, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuya Fujishima
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hirotaka Sawano
- Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital, Osaka, Japan
| | - Hitoshi Nishizawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
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Tagawa N, Fujinami A, Natsume S, Mizuno S, Kato I. Relationship between adiponectin multimer levels and subtypes of cerebral infarction. PLoS One 2022; 17:e0262542. [PMID: 35085298 PMCID: PMC8794129 DOI: 10.1371/journal.pone.0262542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/28/2021] [Indexed: 01/08/2023] Open
Abstract
Aim Serum adiponectin levels are decreased in patients with cerebral infarction. Adiponectin in circulation exists in three isoforms: high molecular weight (HMW), medium molecular weight (MMW), and low molecular weight (LMW) adiponectin. We measured serum levels of total adiponectin and adiponectin multimers (HMW, MMW, and LMW) in patients with cerebral infarction and compared the serum levels of the three adiponectin multimers in stroke subtypes. We also evaluated the clinical value of adiponectin multimer levels as a biomarker for cerebral infarction. Methods We assessed a total of 132 patients with cerebral infarctions. The serum levels of total and adiponectin multimers were measured using enzyme-linked immunosorbent assay (ELISA). Results The total and HMW adiponectin levels were significantly lower in atherothrombotic infarction (AI) than in cerebral embolism (CE) (total, p < 0.05; HMW, p < 0.05). In male patients, the MMW adiponectin level was significantly lower in the lacunar infarction (LI) group than in the AI group (p < 0.05). The LMW adiponectin level was significantly lower in the AI group than in the LI and CE groups (LI, p < 0.001; CE, p = 0.001). However, there were no significant differences in adiponectin multimer levels among the stroke subtypes in female subjects. Additionally, in female patients with AI and LI, the LMW adiponectin levels were negatively associated with C-reactive protein (CRP; AI, p < 0.05; LI, p < 0.05). Conclusion These findings suggest that a decrease in adiponectin is associated with AI and that serum LMW adiponectin level represents a potential biomarker for AI.
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Affiliation(s)
- Noriko Tagawa
- Laboratory of Medical Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Aya Fujinami
- Comprehensive Education and Research Center, Kobe Pharmaceutical University, Kobe, Japan
| | | | - Shigeto Mizuno
- Endoscopy Department, Kindai University Nara Hospital, Ikoma, Japan
| | - Ikuo Kato
- Laboratory of Medical Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
- * E-mail:
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Hrycek E, Banasiewicz‐Szkróbka I, Żurakowski A, Buszman P, Hrycek A. Accelerated Atherosclerosis in Patients with Systemic Lupus Erythematosus and the Role of Selected Adipocytokines in This Process. Lupus 2017. [DOI: 10.5772/68016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Niinaga R, Yamamoto H, Yoshii M, Uekita H, Yamane N, Kochi I, Matsumoto A, Matsuoka T, Kihara S. Marked elevation of serum M2BP–adiponectin complex in men with coronary artery disease. Atherosclerosis 2016; 253:70-74. [DOI: 10.1016/j.atherosclerosis.2016.08.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/09/2016] [Accepted: 08/23/2016] [Indexed: 11/28/2022]
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Adiponectin isoforms differentially affect gene expression and the lipidome of primary human hepatocytes. Metabolites 2014; 4:394-407. [PMID: 24957032 PMCID: PMC4101512 DOI: 10.3390/metabo4020394] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/06/2014] [Accepted: 05/16/2014] [Indexed: 12/13/2022] Open
Abstract
Adiponectin (APN) exerts multiple beneficial effects in obesity and protects from liver injury. Different APN isoforms circulate in serum, and here, the effect of low molecular weight (LMW) and higher molecular weight (HMW) APN on primary human hepatocytes (PHH) has been analyzed. APN is not detected in hepatocyte lysates; levels are strongly increased by HMW-APN, but not by LMW-APN, suggesting the distinct uptake/degradation of APN isoforms by PHH. Several genes with a role in fibrosis, glucose and lipid metabolism known to be regulated by HMW-APN are not affected by the LMW-isoform. Follistatin is reduced by HMW-APN and induced by LMW-APN in supernatants of PHH. Fibroblast growth factor 21 is repressed by both isoforms. Cellular triglycerides and cholesterol levels are not reduced by APN. Total phospholipids, including plasmalogens and sphingomyelins, are not changed upon APN incubation, while distinct species are either induced or repressed. Unexpectedly, total ceramide is increased by LMW-APN. Current data show that APN isoforms differentially affect hepatocyte gene expression, but do not grossly alter the hepatocyte lipidome.
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Foucan L, Maimaitiming S, Larifla L, Hedreville S, Deloumeaux J, Joannes M, Blanchet‐Deverly A, Velayoudom‐Céphise F, Aubert R, Salamon R, Donnet J, Fumeron F. Adiponectin gene variants, adiponectin isoforms and cardiometabolic risk in type 2 diabetic patients. J Diabetes Investig 2014; 5:192-8. [PMID: 24843760 PMCID: PMC4023583 DOI: 10.1111/jdi.12133] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/10/2013] [Accepted: 07/03/2013] [Indexed: 12/18/2022] Open
Abstract
AIMS/INTRODUCTION The aim of the present study was to examine the associations of rs2241766 (+45T>G), rs1501299 (+276G>T), rs17300539 (-11391G>A) and rs182052 (-10069G>A) in the adiponectin (Ad) gene with adiponectin concentrations, and concomitantly the association of these variants with cardiometabolic risk in type 2 diabetic patients of African ancestry. MATERIALS AND METHODS A cross-sectional study of 200 patients was carried out. Concentrations of total, high (HMW), middle (MMW) and low (LMW) molecular weight adiponectin isoforms were measured. The four polymorphisms were genotyped. RESULTS Decreased values were noted for total Ad in overweight, dyslipidemia and coronary artery disease (CAD), for HMW in overweight and dyslipidemia, for MMW in CAD, for LMW in dyslipidemia and CAD, for the percentage HMW/total in overweight, and for MMW:HMW ratio in patients without hypertriglyceridemic waist (HTGW). Significant associations were noted between total Ad, HMW, and HMW/total Ad and rs182052 under a dominant model (P = 0.04, P = 0.03 and P = 0.04, respectively), and between MMW and rs17300539 (P = 0.006). No significant difference in adiponectin concentrations was noted according to rs2241766 and rs1501299 genotypes. Patients carrying the rs2241766 G allele (TG+GG) had an increased risk of HTGW (odds ratio [OR] 3.1; P = 0.04) and of CAD (OR 3.3; P = 0.01). The odds of having low total adiponectin concentrations (<25th percentile: 3.49 ng/mL) for carrying the rs182052A allele (AA+GA) was: OR 0.40; P = 0.009. The single-nucleotide polymorphism associated with adiponectin levels was not concomitantly associated with cardiometabolic risk factors. CONCLUSIONS Adiponectin concentrations and ADIPOQ variants are implicated in the pathophysiological process leading to cardiovascular diseases, but the genetic effects seem to be independent of adiponectin concentrations in our Afro-Caribbean diabetic patients.
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Affiliation(s)
- Lydia Foucan
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
- Department of Medical Information and Public HealthUniversity Hospital of Pointe‐à‐PitreGuadeloupeFrance
| | - Suliya Maimaitiming
- INSERMU695Genetic determinants of type 2 diabetes and its vascular complicationsParisFrance
- University Paris DiderotSorbonne Paris CitéUMRS 695UFR de Médecine Site BichatParisFrance
| | - Laurent Larifla
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
- Cardiology UnitUniversity Hospital of Pointe‐à‐PitreGuadeloupeFrance
| | - Segho Hedreville
- Cardiology UnitUniversity Hospital of Pointe‐à‐PitreGuadeloupeFrance
| | - Jacqueline Deloumeaux
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
- Department of Medical Information and Public HealthUniversity Hospital of Pointe‐à‐PitreGuadeloupeFrance
| | - Marie‐Odile Joannes
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
| | - Anne Blanchet‐Deverly
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
| | - Fritz‐Line Velayoudom‐Céphise
- Research Group Clinical Epidemiology and MedicineECM/L.A.M.I.A EA 4540University Hospital of GuadeloupeUniversity of Antilles and GuyaneGuadeloupeFrance
| | - Roberte Aubert
- INSERMU695Genetic determinants of type 2 diabetes and its vascular complicationsParisFrance
| | - Roger Salamon
- Inserm U897Bordeaux School of Public HealthVictor Segalen Bordeaux 2 UniversityBordeauxFrance
| | - Jean‐Paul Donnet
- Diabetology UnitUniversity Hospital of Pointe‐à‐PitreGuadeloupeFrance
| | - Frederic Fumeron
- INSERMU695Genetic determinants of type 2 diabetes and its vascular complicationsParisFrance
- University Paris DiderotSorbonne Paris CitéUMRS 695UFR de Médecine Site BichatParisFrance
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Bulloch JM, Daly CJ. Autonomic nerves and perivascular fat: interactive mechanisms. Pharmacol Ther 2014; 143:61-73. [PMID: 24560685 DOI: 10.1016/j.pharmthera.2014.02.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 02/03/2014] [Indexed: 12/31/2022]
Abstract
The evidence describing the autonomic innervation of body fat is reviewed with a particular focus on the role of the sympathetic neurotransmitters. In compiling the evidence, a strong case emerges for the interaction between autonomic nerves and perivascular adipose tissue (PVAT). Adipocytes have been shown to express receptors for neurotransmitters released from nearby sympathetic varicosities such as adrenoceptors (ARs), purinoceptors and receptors for neuropeptide Y (NPY). Noradrenaline can modulate both lipolysis (via α2- and β3-ARs) and lipogenesis (via α1- and β3-ARs). ATP can inhibit lipolysis (via P1 purinoceptors) or stimulate lipolysis (via P2y purinoceptors). NPY, which can be produced by adipocytes and sympathetic nerves, inhibits lipolysis. Thus the sympathetic triad of transmitters can influence adipocyte free fatty acid (FFA) content. Substance P (SP) released from sensory nerves has also been shown to promote lipolysis. Therefore, we propose a mechanism whereby sympathetic neurotransmission can simultaneously activate smooth muscle cells in the tunica media to cause vasoconstriction and alter FFA content and release from adjacent adipocytes in PVAT. The released FFA can influence endothelial function. Adipocytes also release a range of vasoactive substances, both relaxing and contractile factors, including adiponectin and reactive oxygen species. The action of adipokines (such as adiponectin) and reactive oxygen species (ROS) on cells of the vascular adventitia and nerves has yet to be fully elucidated. We hypothesise a strong link between PVAT and autonomic fibres and suggest that this poorly understood relationship is extremely important for normal vascular function and warrants a detailed study.
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Affiliation(s)
- Janette M Bulloch
- School of Science, University of the West of Scotland, Hamilton ML3 0JB, Scotland.
| | - Craig J Daly
- School of Life Sciences, University of Glasgow, Glasgow G128QQ, Scotland.
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Abstract
Adiponectin is a circulating bioactive hormone secreted by adipocytes as oligomers ranging in size from 90 kDa trimers and 180 kDa hexamers to larger high molecular weight oligomers that may reach 18- or 36-mers in size. While total circulating adiponectin levels correlate well with metabolic health, it is the relative distribution of adiponectin complexes that is most clinically relevant to glucose sensitivity and inflammation. High molecular weight adiponectin best mirrors insulin sensitivity, while trimeric adiponectin dominates with insulin resistance and adipose tissue inflammation. Experimental animal and in vitro models have also linked the relative fraction of high molecular weight adiponectin to its positive effects. Quantitating adiponectin size distribution thus provides a window into metabolic health and can serve as a surrogate marker for adipose tissue fitness. Here, we present a detailed protocol for isolating and quantitating adiponectin complexes in serum or plasma that has been extensively utilized for both human clinical samples and numerous animal models under various experimental conditions. Examples are presented of different adiponectin distributions and tips are provided for optimization using available equipment. Comparison of this rigorous approach to other available methods is also discussed. In total, this summary is a blueprint for the expanded quantitation and study of adiponectin complexes.
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Affiliation(s)
- Joseph M Rutkowski
- Touchstone Diabetes Center, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas, USA; Department of Cell Biology, UT Southwestern Medical Center, Dallas, Texas, USA.
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Abstract
Adiponectin concentrations exhibit strong cross-sectional relationships with obesity, inflammation, and diabetes. Adiponectin concentrations have been extensively evaluated as epidemiologic markers of diabetes and cardiovascular disease risk. In the present review we will provide an overview of these epidemiologic relationships as the backdrop for an evaluation of the clinical applications of adiponectin measurements. These include using adiponectin as an indicator of need for preventive or therapeutic intervention, as a predictor of response to therapy, and as a marker of therapeutic effectiveness. These efforts are laying the groundwork for the transition of adiponectin measurements from the laboratory to the clinic.
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Medina EA, Shi X, Grayson MH, Ankerst DP, Livi CB, Medina MV, Thompson IM, Leach RJ. The diagnostic value of adiponectin multimers in healthy men undergoing screening for prostate cancer. Cancer Epidemiol Biomarkers Prev 2013; 23:309-15. [PMID: 24296854 DOI: 10.1158/1055-9965.epi-13-0574] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Adiponectin has been reported to have a prohibitory effect on prostate cancer. The goal of this study was to evaluate the diagnostic value of adiponectin multimers for prostate cancer. METHODS Total adiponectin, high- and low-molecular-weight (HMW, LMW), ratios of these measures, and body mass index (BMI) were compared in a prospective prostate cancer-screened cohort. Multivariable logistic regression was used to assess the association between adiponectin measures, their interaction with BMI, and risk of prostate cancer and Gleason score upgrading from biopsy to prostatectomy. RESULTS A total of 228 prostate cancer cases and 239 controls were analyzed: 72 (31.6%) of the cancer cases were high grade (Gleason grade ≥7). Only percent HMW had a statistically significant relationship with prostate cancer (P = 0.04). Among normal and overweight men, the risk of prostate cancer increased as percent HMW increased [OR = 1.24 for a doubling of percent HMW, 95% confidence interval (CI), 0.41-3.75 and OR = 1.81; 95% CI, 1.02-3.20, respectively], whereas among obese men, the risk of prostate cancer decreased (OR = 0.62; 95% CI, 0.32-1.18). Among 97 patients who underwent radical prostatectomy, there was no association between Gleason score upgrading and any of the adiponectin multimers. CONCLUSION This study was unable to confirm the utility of total adiponectin as a biomarker for prostate cancer risk. For the adiponectin multimers, only HMW showed increases with prostate cancer but not in all weight classes. IMPACT Although adiponectin may play a role in the pathogenesis of prostate cancer, our results do not support adiponectin multimers as biomarkers of detection.
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Affiliation(s)
- Edward A Medina
- Authors' Affiliations: Departments of Pathology, Urology, Cellular and Structural Biology, and Molecular Medicine, School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas; and Department of Mathematics, Technical University Munich, Garching, Germany
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Kogan AE, Filatov VL, Kolosova OV, Katrukha IA, Mironova EV, Zhuravleva NS, Nagibin OA, Kara AN, Bereznikova AV, Katrukha AG. Oligomeric adiponectin forms and their complexes in the blood of healthy donors and patients with type 2 diabetes mellitus. J Immunoassay Immunochem 2013; 34:180-96. [PMID: 23537302 DOI: 10.1080/15321819.2012.699494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Adiponectin (Adn) is a protein that circulates in the blood in several oligomeric forms, namely low-, medium-, and high-molecular-weight forms. Adn may serve as a risk factor for type 2 diabetes mellitus (T2DM). The aims of this work were (1) to produce monoclonal antibodies (MAbs) specific to different Adn oligomeric forms, (2) to design immunoassays suitable for measuring the Adn forms present in human blood, and (3) to investigate the changes in Adn forms that occur in patients with T2DM. Gel filtration, fluoroimmunoassays, and Western blotting were utilized as major techniques in this study. MAbs recognizing various oligomeric forms of Adn were obtained. Complexes between Adn and complement component C1q and between the low molecular weight form of Adn and albumin were described in human blood. A decrease in the total Adn and Adn-albumin complex levels in the blood of patients with T2DM and no difference in the levels of the Adn-C1q complex in comparison with healthy volunteers were demonstrated. An Adn94-Adn63 fluoroimmunoassay was selected as the technique that most accurately measured the mass ratio of Adn oligomers in blood samples, and an Adn214-Adn27 assay that measured the low-molecular-weight form of Adn only.
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Kanhai DA, Kranendonk ME, Uiterwaal CSPM, van der Graaf Y, Kappelle LJ, Visseren FLJ. Adiponectin and incident coronary heart disease and stroke. A systematic review and meta-analysis of prospective studies. Obes Rev 2013; 14:555-67. [PMID: 23495931 DOI: 10.1111/obr.12027] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/30/2013] [Accepted: 01/31/2013] [Indexed: 12/15/2022]
Abstract
The plasma concentration of adiponectin, an adipokine that has anti-inflammatory, anti-atherogenic and insulin sensitizing properties, is lower in obese subjects and could therefore be a target for therapy. In order to review and meta-analyse prospective cohort studies investigating adiponectin concentration and the risk for incident coronary heart disease (CHD) or stroke, a systematic search of MEDLINE, EMBASE and Cochrane databases was performed. Two independent reviewers selected prospective cohort studies investigating the relationship between adiponectin level and incident CHD or stroke using 'adiponectin' and 'cardiovascular disease' or 'stroke' and their synonyms, excluding patients with clinically manifest vascular disease. Random-effects models were used to calculate pooled relative risks (RRs) and 95% confidence intervals (95% CI). Generalized least squares regression was used to assess dose-response relationships for adiponectin concentrations from studies that provided RRs solely based upon categorical data regression. In total, 16 prospective cohort studies, comprising 23,919 patients and 6,870 CHD or stroke outcome events, were included in the meta-analyses. An increase of 1 standard deviation in log-transformed adiponectin did not lower the risk for CHD (RR 0.97; 95% CI 0.86-1.09). A 10 μg mL(-1) increase in adiponectin conferred a RR of 0.91 (95% CI 0.80-1.03) for CHD and a RR 1.01 (95% CI 0.97-1.06) for stroke. In conclusion, plasma adiponectin is not related to the risk for incident CHD or stroke.
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Affiliation(s)
- D A Kanhai
- Department of Vascular Medicine, University Medical Center Utrecht (UMC Utrecht), Utrecht, The Netherlands
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Serum total adiponectin level and the risk of cardiovascular disease in general population: a meta-analysis of 17 prospective studies. Atherosclerosis 2013; 228:29-35. [PMID: 23489345 DOI: 10.1016/j.atherosclerosis.2013.02.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 01/16/2013] [Accepted: 02/14/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Many studies have assessed the association between serum adiponectin and the risk of cardiovascular disease (CVD), yet whether adiponectin is an independent risk factor for CVD remains controversial. We performed a meta-analysis of 17 prospective epidemiologic studies to evaluate this relationship in the general population. METHODS PubMed and Embase databases were searched through June 2012 to identify studies meeting a priori inclusion criteria, in addition to conducting a secondary reference review. Two principle investigators respectively extracted the information with either fixed-effect model or random-effect model to calculate the relationship between adiponectin and the risk of CVD. RESULTS We summarized 17 prospective studies with a total of 23,717 participants. Overall, higher serum adiponectin was related to an increased risk of ischemic stroke: pooled risk ratio (RR) of 1.34 [95% confidence intervals (CI): 1.06-1.69] with no heterogeneity (Q = 1.23; P = 0.541). Serum adiponectin was not related to coronary heart disease (CHD) or CVD: pooled RR of 0.96 (95% CI: 0.85-1.08) and 1.00 (95% CI: 0.89-1.13), respectively. CONCLUSIONS Increased serum adiponectin was related to an elevated risk of ischemic stroke, but there was no clear evidence indicating a positive relationship between adiponectin and the risk of CHD or CVD.
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Bik W, Baranowska-Bik A, Wolinska-Witort E, Kalisz M, Broczek K, Mossakowska M, Baranowska B. Assessment of adiponectin and its isoforms in Polish centenarians. Exp Gerontol 2013; 48:401-7. [PMID: 23396152 DOI: 10.1016/j.exger.2013.01.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 01/25/2013] [Accepted: 01/29/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND The physiological mechanisms that promote longevity remain unclear. It has been suggested that insulin sensitivity is preserved in centenarians, whereas typical aging is accompanied by increasing insulin resistance. The oldest-old individuals display raised total adiponectin levels, despite the potential correlation between enhanced adiponectin and all-cause and cardiovascular mortality. AIM To evaluate the level of adiponectin and its isoforms in sera of centenarians and to assess associations between adiponectin and metabolic parameters. PARTICIPANTS A group of 58 Polish centenarians (50 women and 8 men, mean age 101±1.34 years) and 68 elderly persons (55 women and 13 men, mean age 70±5.69 years) as controls. MEASUREMENTS Serum samples were analyzed to evaluate the following parameters: adiponectin array (total adiponectin, HWM-, MMW- and LMW-adiponectin; all by ELISA methods), insulin (by IRMA methods), glucose and lipid profiles. HOMA-IR was calculated. Clinical data were collected. Statistical analyses were performed. RESULTS The concentrations of all adiponectin isoforms were significantly higher in the oldest-old participants. In the centenarian group, total adiponectin positively correlated with age and HDL-cholesterol, and HMW-adiponectin was negatively associated with insulin and triglycerides. The long-lived participants had a lower incidence of hypertension, type 2 diabetes, overweight and obesity, with lower concentrations of serum glucose and insulin, and reduced HOMA-IR. CONCLUSION Our findings support the thesis that centenarians possess a different adiponectin isoform pattern and have a favorable metabolic phenotype in comparison with elderly individuals. However, additional work is necessary to understand the relevance of these findings to longevity.
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Affiliation(s)
- Wojciech Bik
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
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Takahara M, Katakami N, Kishida K, Kaneto H, Funahashi T, Shimomura I, Matsunaga S, Kubo S, Fukamizu H, Otsuka A, Ichihara K, Nakamura T. Circulating Adiponectin Levels and their Associated Factors in Young Lean Healthy Japanese Women. J Atheroscler Thromb 2013; 20:57-64. [DOI: 10.5551/jat.14357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Adya R, Tan BK, Chen J, Randeva HS. Protective actions of globular and full-length adiponectin on human endothelial cells: novel insights into adiponectin-induced angiogenesis. J Vasc Res 2012; 49:534-43. [PMID: 22964477 DOI: 10.1159/000338279] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 03/18/2012] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND/AIMS Adiponectin levels are decreased in diabetes and atherosclerosis. Coexisting hyperglycaemia and systemic inflammation predisposes to dysregulated angiogenesis and vascular disease. We investigated the effect of globular adiponectin (gAd) and full-length adiponectin (fAd) on angiogenesis and pro-angiogenic molecules, i.e. matrix metalloproteinase (MMP)-2, MMP-9 and vascular endothelial growth factor (VEGF), in human microvascular endothelial cells (HMEC-1). METHODS Angiogenesis was assessed by studying capillary tube formation in HMEC-1 on growth factor-reduced Matrigel. Endothelial cell migration assay was performed in a modified Boyden chamber. RESULTS Endothelial cell proliferation, in vitro migration and angiogenesis were significantly increased by gAd (mediated by AdipoR1, AMPK-Akt pathways), and gAd significantly increased MMP-2, MMP-9 and VEGF expression levels. The effect of gAd on VEGF appears to be mediated by AdipoR1, whilst the effect of gAd on MMP-2 and MMP-9 appears to be mediated by AdipoR1 and AdipoR2. Only endothelial cell proliferation was significantly increased by fAd in human microvascular endothelial cells and appears to be mediated by AdipoR2. No significant effects on MMP-2, MMP-9 and VEGF were observed. Importantly, gAd decreased glucose and C-reactive protein-induced angiogenesis with a concomitant reduction in MMP-2, MMP-9 and VEGF in HMEC-1 cells. CONCLUSION We report novel insights into the mechanisms of adiponectin on angiogenesis.
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Affiliation(s)
- Raghu Adya
- Division of Metabolic and Vascular Health, Warwick Medical School, University of Warwick, Coventry, UK
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Krysiak R, Handzlik-Orlik G, Okopien B. The role of adipokines in connective tissue diseases. Eur J Nutr 2012; 51:513-28. [PMID: 22584415 PMCID: PMC3397228 DOI: 10.1007/s00394-012-0370-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 04/26/2012] [Indexed: 12/14/2022]
Abstract
Objective To discuss the relationship between adipokines and connective tissue diseases, by putting special emphasis on the potential role of leptin, adiponectin, resistin, and other adipose tissue products in the pathogenesis of rheumatoid arthritis and systemic lupus erythematosus and on possible application of adipokine-targeted therapy in the treatment of these disorders with emphasis on the recent findings. Methods PubMed literature search complemented by review of bibliographies listed in identified articles. Results Most of the data presented by different research groups showed changed levels of leptin, adiponectin, and resistin and occasionally also other adpokines in rheumatoid arthritis and systemic lupus erythematosus. The relationship between the remaining connective tissue diseases and adipokines is less documented. Conclusions Plasma levels of adipokines might tell us too little about their role in connective tissue disorders, whereas adipokine effects on synovial tissues might differ from their known metabolic or cardiovascular effects, which implies that some re-appraisal of adipokines role may need to take place. It still remains obscure whether the observed disturbances in various adipokine systems in subjects with connective tissue diseases contribute to their development or only reflect the presence or activity of inflammatory process, which itself is induced by other pro-inflammatory factors.
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Affiliation(s)
- Robert Krysiak
- Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Medyków 18, 40-752, Katowice, Poland
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