Codon-54 polymorphism of the fatty acid-binding protein 2 gene is associated with elevation of fasting and postprandial triglyceride in type 2 diabetes

Angeliki Georgopoulos, Omer Aras, Michael Y. Tsai

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Patients with type 2 diabetes are frequently dyslipidemic or hypertriglyceridemic. To assess whether increased intestinal triglyceride input leads to elevated fasting and postprandial triglycerides in type 2 diabetes, we used the codon 54 polymorphism of the fatty acid-binding protein 2 gene, which results in the substitution of threonine (Thr) for alanine and is associated with increased intestinal input of triglyceride. Of the 287 diabetic patients screened, 108 (37.6%) were heterozygous and 31 (10.8%) were homozygous for the Thr-54 allele. Mean (±SEM) fasting plasma triglyceride levels in patients with the wild-type (n = 80), those heterozygous for the Thr-54 allele (n = 57), and those homozygous for it (n = 18) were 2.0 ± 0.09, 2.7 ± 0.20, and 3.8 ± 0.43 mmol/L, respectively. A linear relationship of mean fasting plasma triglyceride levels (r2 = 0.97) between the 3 groups was found. After fat ingestion, the postprandial area under the curve of plasma triglyceride (P = 0.025) and chylomicrons (S(f) > 400, P = 0.013) was higher in the Thr-54/Thr-54 (n = 6) than in the wild-type (n = 9). Our results are consistent with the hypothesis that, in type 2 diabetes, increased intestinal input of triglyceride can lead to elevated fasting and postprandial plasma triglycerides.

Original languageEnglish (US)
Pages (from-to)3155-3160
Number of pages6
JournalJournal of Clinical Endocrinology and Metabolism
Volume85
Issue number9
DOIs
StatePublished - Jan 1 2000

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