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[Heritability of serum lipids and lipoproteins and its related factors in twins aged 5 to 19 years of China].
Zhonghua Yu Fang Yi Xue Za Zhi 2004; 38(4):237-9ZY

Abstract

OBJECTIVES

To study the contribution of the genes and environment to variation of serum levels of lipids and lipoprotein.

METHODS

One hundred and forty-three healthy monozygotic (MZ) twin pairs and 93 dizygotic (DZ) ones aged 5 to 19 [with a mean of (11.2 +/- 3.4) years]. Microsatellite polymorphism (STR) was used to diagnose zygosity of twins, and intraclass correlation coefficient method and Falconer formula were performed to investigate heritability of serum lipids and lipoproteins unadjusted or adjusted for age and sex. Logarithmic transformation was used for data with skewed distribution. Influence of relevant physical and biochemical indicators on serum lipids and other components was analyzed with partial coefficients of correlation adjusted for age and sex.

RESULTS

In the twin samples, difference in serum level of triglycerides (TG) between MZ and DZ was not statistically significant with intraclass variation and intraclass correlation. There was significant difference in serum levels of total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), and lipoprotein [Lp(a)] between MZ and DZ, with their heritability estimates of 0.56, 0.55, 0.49 and 0.58 unadjusted, respectively, and 0.63, 0.63, 0.55 and 0.64 adjusted for age and sex, respectively. Serum levels of TC, HDL-C, LDL-C and Lp(a) correlated reversely with age. Serum levels of TC, HDL-C and LDL-C in girls were slightly higher than those in boys. Most indicators for serum levels of lipids and lipoprotein, except for serum level of Lp(a) correlated with body mass index (BMI), body fat ratio, Pelidisi index, and other indexes such as blood pressure, blood sugar, serum level of calcium, adjusted for age and sex.

CONCLUSIONS

Serum levels of TC, HDL-C and Lp(a) were influenced more greatly by genetic factors, and serum level of TG was mainly influenced by environmental ones. Levels of blood lipids in children were influenced by age and sex, and correlated with indicators that reflect their body fat and nutritional status.

Authors+Show Affiliations

Institute of Child and Adolescent Health, Peking University, Beijing 100083, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

15312581

Citation

Chen, Tian-Jiao, et al. "[Heritability of Serum Lipids and Lipoproteins and Its Related Factors in Twins Aged 5 to 19 Years of China]." Zhonghua Yu Fang Yi Xue Za Zhi [Chinese Journal of Preventive Medicine], vol. 38, no. 4, 2004, pp. 237-9.
Chen TJ, Ji CY, Pang ZC, et al. [Heritability of serum lipids and lipoproteins and its related factors in twins aged 5 to 19 years of China]. Zhonghua Yu Fang Yi Xue Za Zhi. 2004;38(4):237-9.
Chen, T. J., Ji, C. Y., Pang, Z. C., Wang, S. J., Hu, Y. H., & Qin, Y. (2004). [Heritability of serum lipids and lipoproteins and its related factors in twins aged 5 to 19 years of China]. Zhonghua Yu Fang Yi Xue Za Zhi [Chinese Journal of Preventive Medicine], 38(4), pp. 237-9.
Chen TJ, et al. [Heritability of Serum Lipids and Lipoproteins and Its Related Factors in Twins Aged 5 to 19 Years of China]. Zhonghua Yu Fang Yi Xue Za Zhi. 2004;38(4):237-9. PubMed PMID: 15312581.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Heritability of serum lipids and lipoproteins and its related factors in twins aged 5 to 19 years of China]. AU - Chen,Tian-Jiao, AU - Ji,Cheng-Ye, AU - Pang,Zeng-Chang, AU - Wang,Shao-Jie, AU - Hu,Yong-Hua, AU - Qin,Ying, PY - 2004/8/18/pubmed PY - 2005/1/8/medline PY - 2004/8/18/entrez SP - 237 EP - 9 JF - Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] JO - Zhonghua Yu Fang Yi Xue Za Zhi VL - 38 IS - 4 N2 - OBJECTIVES: To study the contribution of the genes and environment to variation of serum levels of lipids and lipoprotein. METHODS: One hundred and forty-three healthy monozygotic (MZ) twin pairs and 93 dizygotic (DZ) ones aged 5 to 19 [with a mean of (11.2 +/- 3.4) years]. Microsatellite polymorphism (STR) was used to diagnose zygosity of twins, and intraclass correlation coefficient method and Falconer formula were performed to investigate heritability of serum lipids and lipoproteins unadjusted or adjusted for age and sex. Logarithmic transformation was used for data with skewed distribution. Influence of relevant physical and biochemical indicators on serum lipids and other components was analyzed with partial coefficients of correlation adjusted for age and sex. RESULTS: In the twin samples, difference in serum level of triglycerides (TG) between MZ and DZ was not statistically significant with intraclass variation and intraclass correlation. There was significant difference in serum levels of total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), and lipoprotein [Lp(a)] between MZ and DZ, with their heritability estimates of 0.56, 0.55, 0.49 and 0.58 unadjusted, respectively, and 0.63, 0.63, 0.55 and 0.64 adjusted for age and sex, respectively. Serum levels of TC, HDL-C, LDL-C and Lp(a) correlated reversely with age. Serum levels of TC, HDL-C and LDL-C in girls were slightly higher than those in boys. Most indicators for serum levels of lipids and lipoprotein, except for serum level of Lp(a) correlated with body mass index (BMI), body fat ratio, Pelidisi index, and other indexes such as blood pressure, blood sugar, serum level of calcium, adjusted for age and sex. CONCLUSIONS: Serum levels of TC, HDL-C and Lp(a) were influenced more greatly by genetic factors, and serum level of TG was mainly influenced by environmental ones. Levels of blood lipids in children were influenced by age and sex, and correlated with indicators that reflect their body fat and nutritional status. SN - 0253-9624 UR - https://www.unboundmedicine.com/medline/citation/15312581/[Heritability_of_serum_lipids_and_lipoproteins_and_its_related_factors_in_twins_aged_5_to_19_years_of_China]_ L2 - http://journal.yiigle.com/LinkIn.do?linkin_type=pubmed&issn=0253-9624&year=2004&vol=38&issue=4&fpage=237 DB - PRIME DP - Unbound Medicine ER -