Randomized controlled trial2014Open access

Consumption of whole grains and legumes modulates the genetic effect of the APOA5 -1131C variant on changes in triglyceride and apolipoprotein A-V concentrations in patients with impaired fasting glucose or newly diagnosed type 2 diabetes

Kang R, Kim M, Chae JS, Lee SH, Lee JH

Trials · 25 citations

Review labels

Controlled feeding

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function
Intake measured by
Food provided by researchers

Who paid for it

Funding
Independent funding
Government
National Research Foundation
Government
National Research Foundation of Korea
Grants
National Research Foundation of Korea (2012M3A9C4048762)

Based on 2 listed funder(s) and full-text disclosure statement.

Publication

Published
2014-04-01 · Trials · vol. 15 · issue 1 · p. 100
Publisher
Springer Science+Business Media
Cited
37 citations · more than 87% of similar papers · 2.2× the field average
References
38 works
Access
Open access (journal) · CC-BY
Research areas
Diabetes, Cardiovascular Risks, and Lipoproteins · Food composition and properties · Nutritional Studies and Diet
Keywords
Triglyceride, Hypertriglyceridemia, Internal medicine, Endocrinology, Medicine, Apolipoprotein B, Carbohydrate, Genotype, Type 2 diabetes, Legume, Diabetes mellitus, Biology, Cholesterol, Biochemistry, Gene, Agronomy
MeSH
humans, fabaceae, diabetes mellitus, type 2, insulin, dietary carbohydrates, blood glucose, triglycerides, apolipoproteins a, treatment outcome, fasting, genotype, phenotype, polymorphism, genetic, time factors, middle aged, female, male, republic of korea, biomarkers, oryza, edible grain, apolipoprotein a-v

5 authors

From KR

  • Ryungwoo KangYonsei University
  • Minjoo KimYonsei University
  • Jey Sook ChaeYonsei University
  • Sanghyun LeeNational Health Insurance Service Ilsan Hospital
  • Jong Ho Lee · correspondingYonsei University

Abstract

Background

The apolipoprotein A5 gene (APOA5) -1131 T > C polymorphism is associated with mild hypertriglyceridemia in type 2 diabetic subjects, and interacts with dietary fat in the determination of triglyceride concentrations. We examined whether a substitution of whole grains and legumes for refined rice in a high carbohydrate diet (about 65% of energy derived from carbohydrate) may modify the effect of this variant on changes in apolipoprotein A-V (apoA-V) and triglyceride concentrations.

Methods

We genotyped the APOA5 -1131 T > C in individuals with impaired fasting glucose (IFG) or newly diagnosed type 2 diabetes, who were randomly assigned to either a group ingesting whole grain and legume meals daily or a control group for 12 weeks.

Results

After dietary intervention, we observed significant interactions between the APOA5 -1131 T > C polymorphism and carbohydrate sources (whole grains and legumes versus refined rice) in the determination of mean percent changes in triglyceride and apoA-V (P interactions <0.001 and =0.038, respectively). In the refined rice group (n = 93), the carriers of the risk C allele (n = 50) showed a greater increase in the mean percent changes of triglyceride and apoA-V than noncarriers after adjusting for HOMA-IR (P = 0.004 and 0.021, respectively). The whole grain and legume group (n = 92), however, showed a decrease in fasting glucose, HOMA-IR, and triglyceride, and an increase in apoA-V, irrespective of genotype.

Conclusions

The data showed that the magnitude of the genetic effect of the APOA5 -1131C variant on triglyceride and apoA-V levels was modulated when substituting consumption of whole grains and legumes for refined rice as a carbohydrate source in IFG or diabetic subjects.

Trial registration

ClinicalTrials.gov: NCT01784952.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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