title: Significance of functional GRP78 polymorphisms in predicting the onset of type 2 diabetic peripheral neuropathy in Chinese population.
abstract: OBJECTIVE
  The objective of this study is to investigate the significance of functional GRP78 polymorphisms in predicting the risk of type 2 diabetic peripheral neuropathy in Chinese population.
  
  
  METHODS
  Between the years of 2006 and 2010, a total of 295 definitely diagnosed type 2 diabetes mellitus (T2DM) patients were included into our study cohort and followed for 3 years. At baseline and annual re-examinations, the patients underwent physical examinations, laboratory tests and evaluation of Michigan diabetic neuropathy score (MDNS). Age, gender, disease course, waist-hip circumference ratio (WHR), body mass index (BMI), triglycerine (TG), total cholesterol (Tch), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), glycosylated haemoglobin (HbA1c), uric acid elimination rate (UAER) and uric acid (UA) were recorded and GRP78 polymorphisms were tested by direct sequencing. The prognostic significance of GRP78 polymorphisms were analysed using monovariate and multivariate logistic regression.
  
  
  RESULTS
  Three years after baseline, 32.9% (97/295) of the T2DM patients had suffered the development of diabetic peripheral neuropathy and GRP78 rs391957 promoter polymorphism is a significant risk factor for the onset of type 2 diabetic peripheral neuropathy. In monovariate regression model, the OR values of GRP78 rs391957 promoter polymorphism were 2.233 (C/T) and 2.734 (T/T). As for the model calibrated with demographic and laboratory indexes, the OR values were, respectively, 2.124 (C/T) and 2.423 (T/T).
  
  
  CONCLUSIONS
  Our study suggested that the GRP78 rs391957 promoter polymorphism is a potential risk factor for type 2 diabetic peripheral neuropathy.
authors.forename: Yujie
authors.initials: Y
authors.lastname: Jia
authors.forename: Yu
authors.initials: Y
authors.lastname: Tong
authors.forename: Lianqiu
authors.initials: L
authors.lastname: Min
mesh_terms: D044466:Asian People / Q000235:genetics; D002681:China; D015331:Cohort Studies; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics* / Q000503:physiopathology*; D003929:Diabetic Neuropathies / Q000235:genetics* / Q000503:physiopathology*; D000091342:Endoplasmic Reticulum Chaperone BiP; D005260:Female; D006360:Heat-Shock Proteins / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic; D012307:Risk Factors
chemical_list: D000091342:Endoplasmic Reticulum Chaperone BiP; C000717247:HSPA5 protein, human; D006360:Heat-Shock Proteins
keywords: Diabetic peripheral neuropathy; GRP78,; Type 2 diabetes mellitus,