scholarly journals Plasma fibroblast growth factor 21 levels increase with ectopic fat accumulation and its receptor levels are decreased in the visceral fat of patients with type 2 diabetes

2019 ◽  
Vol 7 (1) ◽  
pp. e000776 ◽  
Author(s):  
Eun Shil Hong ◽  
Cheong Lim ◽  
Hye Yeon Choi ◽  
Yun Kyung Lee ◽  
Eu Jeong Ku ◽  
...  

BackgroundFibroblast growth factor 21 (FGF21) is a novel metabolic regulator that has beneficial effects on glucose and lipid metabolism. However, plasma FGF21 levels are paradoxically increased in type 2 diabetes mellitus (T2DM) and obesity, suggesting resistance to this ligand. FGF21 acts mainly on adipose tissue and ectopic fat accumulation is a typical feature in metabolic deterioration such as diabetes, metabolic syndrome, and cardiovascular disease.ObjectiveTo investigate the relationship between FGF21 resistance and ectopic fat accumulation.Research design and methodsSubjects who underwent 64-slice multidetector CT (MDCT) were enrolled (n=190). Plasma FGF21 levels and MDCT data of ectopic fats at various sites were analyzed. Human visceral and subcutaneous fat tissues from abdominal and coronary artery bypass surgery were obtained. FGF21 receptor expression and postreceptor signaling in different fat deposits of both control and T2DM subjects were analyzed.ResultsPlasma FGF21 levels were significantly associated with body mass index, triglyceride, homeostatic model assessment of insulin resistance, and Matsuda index. Plasma FGF21 levels were significantly higher in patients with T2DM than in the pre-diabetes and normal glucose tolerance groups. The ectopic fat phenotypes (visceral, epicardial, intrahepatic, and intramuscular fat) of T2DM were significantly higher than controls. Plasma FGF21 levels were elevated and exhibited a strong positive correlation with ectopic fat accumulation in T2DM. The expression of genes comprising the FGF21 signaling pathway was also lower in visceral fat than in subcutaneous fat in this disease.ConclusionsHuman FGF21 resistance in T2DM could result from increases in FGF21-resistant ectopic fat accumulation. Our study provides novel clinical evidence linking FGF21 resistance and T2DM pathogenesis.

2016 ◽  
Vol 18 (3) ◽  
pp. 120-126 ◽  
Author(s):  
Hui Fan ◽  
XiaoMeng Sun ◽  
Heng Zhang ◽  
Jia Liu ◽  
PengRui Zhang ◽  
...  

Diabetes Care ◽  
2011 ◽  
Vol 34 (9) ◽  
pp. 2113-2115 ◽  
Author(s):  
Cheng Chen ◽  
Bernard M.Y. Cheung ◽  
Annette W.K. Tso ◽  
Yudong Wang ◽  
Lawrence S.C. Law ◽  
...  

2009 ◽  
Vol 161 (3) ◽  
pp. 391-395 ◽  
Author(s):  
Ke Li ◽  
Ling Li ◽  
Mengliu Yang ◽  
Haihong Zong ◽  
Hua Liu ◽  
...  

ObjectiveFibroblast growth factor-21 (FGF-21) has recently been characterized as a potent metabolic regulator, but its pathophysiologic roles in humans remain unknown. This study aimed to investigate the effects of rosiglitazone on plasma FGF-21 levels in patients with type 2 diabetes mellitus (T2DM).Design and methodsThirty patients with new-onset T2DM (nT2DM), 34 type 2 diabetic patients with poor glycemic control (pT2DM) after the treatment with single hypoglycemic agent metformin, and 30 sex- and age-matched normal glycaemic controls (NGT) participated in the study. The pT2DM group was treated with rosiglitazone for 12 weeks. Plasma FGF-21 levels were measured with a RIA. The relationship between plasma FGF-21 levels and metabolic parameters was also analyzed.ResultsFasting plasma FGF-21 levels were higher in nT2DM and pT2DM groups than in the control (1.81±0.64 vs 1.87±0.63 vs 1.52±0.61 μg/l, P<0.05), but there was no difference between nT2DM and pT2DM groups. Fasting plasma FGF-21 levels were decreased significantly in pT2DM group after the treatment with rosiglitazone compared with pre-treatment (1.59±0.63 vs 1.87±0.64 μ/l, P<0.05). In all diabetic patients, multiple regression analysis showed that HbA1c, fasting insulin, and homeostasis model assessment-insulin resistance index were independently associated with plasma FGF-21 levels.ConclusionsIn pT2DM patients, plasma FGF-21 levels are increased, but significantly decreased after the treatment with rosiglitazone on top of ongoing metformin therapy. These data suggest that rosiglitazone may play a role in lowering FGF-21 levels in T2DM patients.


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