Intrauterine, environmental, and genetic influences in the relationship between birth weight and lipids in a female twin cohort

Skidmore, Paula M. L., Cassidy, Aedin, Swaminathan, Ramasamyiyer, Falchi, Mario, Spector, Tim D. and MacGregor, Alex J. ORCID: https://orcid.org/0000-0003-2163-2325 (2006) Intrauterine, environmental, and genetic influences in the relationship between birth weight and lipids in a female twin cohort. Arteriosclerosis, Thrombosis, and Vascular Biology, 26 (10). pp. 2373-2379. ISSN 1524-4636

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Abstract

Objective— To investigate the association between birth weight and lipid levels in a cohort of UK female twins. Methods and Results— Birth weights and fasting blood lipid levels were available for 2900 women aged 18 to 80 years. Individual level regressions indicated that a 1-kg increase in birth weight was associated with a 0.08-mmol/L decrease in total cholesterol (95% confidence interval [CI], −0.12, −0.04) and a 0.06-mmol/L decrease in low-density lipoprotein (−0.10, −0.03). Using a regression model that includes both mean twin pair birth weight and individual twin’s difference from the pair mean, we found that these significant relationships were between twin pairs only and not within pairs. We found no significant relationships for high-density lipoprotein. When monozygotic and dizygotic twins were analyzed separately we found similar effect sizes. Restricting the analysis to postmenopausal women we found stronger relationships between birth weight and lipid levels, which was attenuated after adjustment for body mass index (BMI). Conclusions— These novel results suggest that significant relationships between birth weight and lipids are mediated through shared influences on the maternal environment and do not support the hypothesis that fetal malnutrition is an important determinant of adult lipid levels. Adjustment for BMI also indicates that postnatal growth may be more important than prenatal growth. In a cohort of 2900 female twins, we found that birth weight was inversely significantly related to total and LDL cholesterol, between twin pairs only and not within pairs. These findings indicate that the relationships between birth weight and lipids are mediated through shared influences on the maternal environment.

Item Type:	Article
Faculty \ School:	Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups:	Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine Faculty of Medicine and Health Sciences > Research Groups > Cardiovascular and Metabolic Health Faculty of Science > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Public Health and Health Services Research (former - to 2023) Faculty of Medicine and Health Sciences > Research Groups > Musculoskeletal Medicine Faculty of Medicine and Health Sciences > Research Groups > Epidemiology and Public Health
Depositing User:	EPrints Services
Date Deposited:	25 Nov 2010 11:11
Last Modified:	16 May 2024 11:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/13701
DOI:	10.1161/01.ATV.0000238354.39875.75

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