Abstract:
:The objective of this study was to investigate the overall contribution of genetic and environmental effects on poor response to hepatitis B virus (HBV) vaccination in Chinese infants. One-year-old healthy twins were recruited from child-care settings. Parental factors, neonates' condition at birth, postnatal infant feeding history and growth measurements during the 12 months were investigated by conducting an interview and checking the medical records. HBV-related markers were examined at 1 year of age. Heritability of surface antibody to HBV (anti-HBs) concentrations (ordinal variable) among twins was estimated using MX software. The role of perinatal environmental factors on poor vaccine response (anti-HBs<100 mIU ml(-1)) was analyzed using XTGEE (fit population-averaged panel-data models by using GEE) programs. Overall, 172 out of 225 recruited twin pairs were analyzed for heritability, including 82 pairs (47.67%) of monozygotic twins and 90 pairs of dizygotic twins, which consisted 43 pairs of (25.0%) opposite sex twins, 29 pairs of male twins and 18 pairs of female twins. Seventy-one (19.9%) of 370 twins showed poor responses to HBV vaccine. An additive genetic (0.91 of the variance)-random environmental (0.09 of the variance)-model best fit the variation of anti-HBs response. Risk factor analysis showed that with a smoking father and low birth weight, the infants were associated with an increased risk of poor response to HBV vaccination (odds ratio (OR)=4.50, 95% confidence interval (CI): 2.52-8.03 and OR=2.55, 95% CI: 1.33-4.87, respectively). Higher Apgar score and gaining more body weight in the first year of life reduced this risk. Genetic factors have a dominant role in determining infant HBV vaccination responses (91%) compared with perinatal environmental factors.
journal_name
J Hum Genetjournal_title
Journal of human geneticsauthors
Yan K,Cai W,Cao F,Sun H,Chen S,Xu R,Wei X,Shi X,Yan Wdoi
10.1038/jhg.2013.18subject
Has Abstractpub_date
2013-05-01 00:00:00pages
293-7issue
5eissn
1434-5161issn
1435-232Xpii
jhg201318journal_volume
58pub_type
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