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Journal of Diabetes Research
Volume 2014, Article ID 929756, 6 pages
Research Article

Serum Fibroblast Growth Factor 21 Levels Are Correlated with the Severity of Diabetic Retinopathy

1Department of Ophthalmology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen 361000, China
2Department of Ophthalmology, The Third Affiliated Hospital, Fujian Traditional Chinese Medicine University, Xiamen 361000, China
3Key Laboratory of Biotechnology Pharmaceutical Engineering, School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, China
4Department of Endocrinology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou 323000, China
5Department of Ophthalmology, Lishui People’s Hospital, Wenzhou Medical University, Lishui 323000, China

Received 4 February 2014; Accepted 31 March 2014; Published 15 April 2014

Academic Editor: Dimitrios Papazoglou

Copyright © 2014 Yuan Lin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of the study was to assess serum fibroblast growth factor 21 (FGF21) concentrations in Chinese type 2 diabetic patients with and without retinopathy and to assess the association between FGF21 and the severity of retinopathy. 117 diabetic patients were compared with 68 healthy controls. Fasting blood glucose, serum total cholesterol, serum triglycerides, serum insulin, and serum FGF21 levels were estimated. FGF21 concentrations in the patients were significantly higher than those in control. In the patient group there was a significant positive correlation between FGF21, insulin level, and homeostasis model assessment index. Serum FGF21 concentrations in patients with proliferative diabetic retinopathy or nonproliferative diabetic retinopathy were significantly higher than those in patients without diabetic retinopathy. When the presence of diabetes was defined as the final variable in the conditional logistic regression model with the FGF21 concentration as the continuous variable, FGF21 was significantly involved in the model. This study shows that the increase in serum concentration of FGF21 was associated with the severity of diabetic retinopathy and suggests that FGF21 may play a role in the pathogenesis of diabetic retinopathy and its degree.