Title page for etd-0120108-152648


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URN etd-0120108-152648
Author Kai-Di Wu
Author's Email Address No Public.
Statistics This thesis had been viewed 5564 times. Download 3972 times.
Department Biological Sciences
Year 2007
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Association studies of visfatin concentration and gene polymorphism in type 2 diabetes mellitus with and without macrovascular complications
Date of Defense 2008-01-11
Page Count 83
Keyword
  • visfatin
  • type 2 diabetes mellitus
  • macrovascular complications
  • Abstract Adiposity has been shown to secrete bioactive cytokines and growth factor known as adipocytokines, they can contribute to obesity, diabetes and complications of diabetes. Visfatin is a novel adipocytokine, and it was shown to exert insulin-mimetic effects in stimulating glucose transport and induced triglyceride accumulation in preadipocytes and triglyceride synthesis from gluvose. Visfatin plasma levels are increased in morbid obesity and type 2 diabetes mellitus. These finding indicate that visfatin may play a role in the association between visceral obesity and increased metabolic risk, visfatin gene suggested that genetic variation in the visfatin gene may, indeed, have a minor effect on visceral and subcutaneous visfatin messenger RNA expression profiles and parameters of glucose and insulin metabolism.
     In this study, we explored the relationships between the plasma level of visfatin and genetic single nucleotide polymorphisms (SNPs) of visfatin gene in type 2 diabetes mellitus (T2DM) with and without macrovascular disease. Plasma visfatin was found to be elevated significantly in T2DM with macrovascular disease patients. Moreover, waist to hip ratio was independently associated with plasma visfatin level. There were statistically significant differences in visfatin -948 G/T genetic variants distribution between T2DM with macrovascular disease and the T2DM control group. The visfatin -948 G/T heterozygotes showed higher mean high-density lipoprotein cholesterol than the carriers of the G allele.
     The results of the current study indicated that plasma visfatin levels were associated with macrovascular complications in type 2 diabetes. However, the definite roles of visfatin in the pathogenesis of insulin resistance, glucose and lipid metabolism are unclear. The observation of changes in the plasma concentrations of visfatin seen in T2DM and T2DM with macrovascular diseases may exert beneficial effects in understanding roles of visfatin in physiologic activity and metabolic disorder. Further studies are needed to elucidate the mechanisms behind visfatin overexpression in humans.
    Advisory Committee
  • Ching-Mei Hsu - chair
  • Hsueh-Wen Chang - co-chair
  • Chung-Lung Cho - advisor
  • Files
  • etd-0120108-152648.pdf
  • indicate accessible in a year
    Date of Submission 2008-01-20

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