Ethnic differences in the formation of small LDL particles in Asians

A comparison of Koreans, Japanese and Mongolians

Anuurad Erdembileg, K. Shiwaku, Enkhmaa Byambaa, A. Nogi, K. Kitajima, M. Yamasaki, Y. Yamane

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Background: The presence of small, dense LDL particles has been recognized as an independent risk factor for coronary heart disease (CHD) but is not directly representative of CHD mortality rate beyond any given population. We investigated whether such inconsistency between three Asian ethnic groups might have arisen from anthropometric and metabolic factors. Design: We conducted a cross-sectional survey among adult Koreans (412), Japanese (453) and Mongolians (253). Results: The prevalence of small LDL particles was 36% in the Koreans, 21% in the Japanese and 7% in the Mongolians. Multiple logistic regression analysis revealed plasma triglyceride (TG) levels to be the strongest determinant of small LDL particle size in all three groups, with sex, HDL-cholesterol and non-HDL-C being other ethnic-specific significant determinants. Body mass index (BMI), FFA and insulin resistance were not significant factors in the regression analysis. Of the subjects with low TG levels (< 133 mg dL-1), 25% of the Koreans and 10% of the Japanese, but no Mongolians, had small LDL particles. Conclusions: Results of the present study suggest that traditionally, high-carbohydrate diets in Korea and Japan possibly contribute to higher TG-levels compared with BMI-matched Mongolians, and to the formation of small LDL particles, even in instances of low TG levels.

Original languageEnglish (US)
Pages (from-to)738-746
Number of pages9
JournalEuropean Journal of Clinical Investigation
Volume34
Issue number11
DOIs
StatePublished - Nov 2004
Externally publishedYes

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Triglycerides
Regression analysis
Coronary Disease
Body Mass Index
Regression Analysis
Korea
Nutrition
Ethnic Groups
Particle Size
HDL Cholesterol
Insulin Resistance
Logistics
Japan
Cross-Sectional Studies
Logistic Models
Particle size
Carbohydrates
oxidized low density lipoprotein
low density lipoprotein inhibitor
Insulin

Keywords

  • Japanese
  • Koreans
  • LDL particle size
  • Mongolians
  • Obesity
  • Triglyceride

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Ethnic differences in the formation of small LDL particles in Asians : A comparison of Koreans, Japanese and Mongolians. / Erdembileg, Anuurad; Shiwaku, K.; Byambaa, Enkhmaa; Nogi, A.; Kitajima, K.; Yamasaki, M.; Yamane, Y.

In: European Journal of Clinical Investigation, Vol. 34, No. 11, 11.2004, p. 738-746.

Research output: Contribution to journalArticle

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AU - Nogi, A.

AU - Kitajima, K.

AU - Yamasaki, M.

AU - Yamane, Y.

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AB - Background: The presence of small, dense LDL particles has been recognized as an independent risk factor for coronary heart disease (CHD) but is not directly representative of CHD mortality rate beyond any given population. We investigated whether such inconsistency between three Asian ethnic groups might have arisen from anthropometric and metabolic factors. Design: We conducted a cross-sectional survey among adult Koreans (412), Japanese (453) and Mongolians (253). Results: The prevalence of small LDL particles was 36% in the Koreans, 21% in the Japanese and 7% in the Mongolians. Multiple logistic regression analysis revealed plasma triglyceride (TG) levels to be the strongest determinant of small LDL particle size in all three groups, with sex, HDL-cholesterol and non-HDL-C being other ethnic-specific significant determinants. Body mass index (BMI), FFA and insulin resistance were not significant factors in the regression analysis. Of the subjects with low TG levels (< 133 mg dL-1), 25% of the Koreans and 10% of the Japanese, but no Mongolians, had small LDL particles. Conclusions: Results of the present study suggest that traditionally, high-carbohydrate diets in Korea and Japan possibly contribute to higher TG-levels compared with BMI-matched Mongolians, and to the formation of small LDL particles, even in instances of low TG levels.

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