Maternal lead exposure, secondary sex ratio and dose-exposure fallacy
نویسندگان
چکیده
منابع مشابه
Maternal lead exposure and the secondary sex ratio.
BACKGROUND A reduction in the secondary sex ratio may be associated with exposure to environmental toxicants. Little data exists relating this outcome to lead exposure, a well-known reproductive toxicant. METHODS We studied 1980 women having singleton births from 1994 to 1995 and from 1997 to 2001 who participated in a cohort study of lead exposure and infant outcomes in Mexico City. Levels o...
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BACKGROUND Though commercial production of polychlorinated biphenyls was banned in the United States in 1977, exposure continues due to their environmental persistence. Several studies have examined the association between environmental polychlorinated biphenyl exposure and modulations of the secondary sex ratio, with conflicting results. OBJECTIVE Our objective was to evaluate the associatio...
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The aim of this study was to evaluate the effect of prenatal exposure to lead, cadmium and mercury levels on the secondary sex ratio. Whole blood samples were collected from pregnant women enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC) study at a median gestational age of 11 weeks and were analyzed for lead, cadmium and mercury. Regression analysis was used to identify...
متن کاملPaternal exposure to low-dose lead acetate: effect on implantation rate,pregnancy outcome, and sex ratio in mice.
BACKGROUND/AIM It has been reported from in vivo exposed experimental animals that paternal lead exposure reduces birth rate; however, there is limited evidence to suggest a decrease in the proportion of male births. This study investigated the role of paternal exposure to lower lead acetate doses on early embryonic development (implantation) and the sex ratio of their offspring. MATERIALS AN...
متن کاملToddler temperament and prenatal exposure to lead and maternal depression
BACKGROUND Temperament is a psychological construct that reflects both personality and an infant's reaction to social stimuli. It can be assessed early in life and is stable over time Temperament predicts many later life behaviors and illnesses, including impulsivity, emotional regulation and obesity. Early life exposure to neurotoxicants often results in developmental deficits in attention, so...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2007
ISSN: 0268-1161,1460-2350
DOI: 10.1093/humrep/dem193