Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/47141
Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Danilevičiutė, Asta;Gražulevičienė, Regina;Paulauskas, Algimantas;Nadišauskienė, Rūta;Nieuwenhuijsen, Mark
Title: Low level maternal smoking and infant birthweight reduction : genetic contributions of GSTT1 and GSTM1 polymorphisms
Is part of: BMC pregnancy and childbirth [elektroninis išteklius]. London : BioMed Central, 2012, vol. 12, iss. 161
Extent: p. 1-18
Date: 2012
Keywords: Birthweight;GST polymorphisms;Smoking;Interaction
Abstract: Background. Genetic susceptibility to tobacco smoke might modify the effect of smoking on pregnancy outcomes. Methods. We conducted a case–control study of 543 women who delivered singleton live births in Kaunas (Lithuania), examining the association between low-level tobacco smoke exposure (mean: 4.8 cigarettes/day) during pregnancy, GSTT1 and GSTM1 polymorphisms and birthweight of the infant. Multiple linear-regression analysis was performed adjusting for gestational age, maternal education, family status, body mass index, blood pressure, and parity. Subsequently, we tested for the interaction effect of maternal smoking, GSTT1 and GSTM1 genes polymorphisms with birthweight by adding all the product terms in the regression models. Results. The findings suggested a birthweight reduction among light-smoking with the GSTT1–null genotype (−162.9 g, P = 0.041) and those with the GSTM1–null genotype (−118.7 g, P = 0.069). When a combination of these genotypes was considered, birthweight was significantly lower for infants of smoking women the carriers of the double-null genotypes (−311.2 g, P = 0.008). The interaction effect of maternal smoking, GSTM1 and GSTT1 genotypes was marginally significant on birthweight (−234.5 g, P = 0.078). Among nonsmokers, genotype did not independently confer an adverse effect on infant birthweight. Conclusions. The study shows the GSTT1–null genotype, either presents only one or both with GSTM1– null genotype in a single subject, have a modifying effect on birthweight among smoking women even though their smoking is low level. Our data also indicate that identification of the group of susceptible subjects should be based on both environmental exposure and gene polymorphism. Findings of this study add additional evidence on the interplay among two key GST genes and maternal smoking on birth weight of newborns
Internet: http://www.biomedcentral.com/content/pdf/1471-2393-12-161.pdf
http://www.biomedcentral.com/content/pdf/1471-2393-12-161.pdf
Affiliation(s): Aplinkotyros katedra
Biologijos katedra
Gamtos mokslų fakultetas
Lietuvos sveikatos mokslų universitetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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