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Scientists report that bacterial resistance to antibiotics important for fighting human disease is heightened in ground and surface waters downstream of a factory pig farm. The water sources below the swine feedlot also contained higher concentrations of the three types of intestinal bacteria studied than the surface and groundwater tested above the facility. The results show that waste from a swine CAFO can contribute antibiotic-resistant fecal bacteria to natural water systems. 18 May 2007. More...
Arsenic interferes with the ability of human fat cells to regulate their blood sugar, according to new research. The effect is evident at exposure levels below what is necessary for overt toxicity. This result may help explain how the heavy metal contributes to type II diabetes, a chronic, life-changing disease. 6 April 2007. More... [related story]
Eutrophication of frog ponds is linked to epidemics of frog deformities, because it creates conditions that lead to higher rates of parasitic infections of tadpoles. The parasitic infections in turn disrupt normal development of the tadpoles' limb buds during metamorphosis. 12 August 2004. More... [related stories]
Women working in agriculture with exposure to organophosphate pesticides late in pregnancy go into labor earlier than expected. Increase in blood levels of organophosphate metabolites and decreases in cholinesterase levels were associated with a dose-response related decrease in gestational length. No association was found for a decrease in fetal growth. Although there is biological plausibility for these changes to stimulate contraction of the uterus, the babies born in this study were not preterm. Environmental Health Perspectives 11 March 2004. More... [related stories]
A team of scientists in Japan raise the intriguing possibility that weight regulation may be vulnerable to endocrine disruption. In a series of cell culture studies, they found that bisphenol A increases the rate at which fat cells are formed and increases the amount of fat stored in them. Their results open up a new front of research into the causes of the world-wide epidemic of obesity. 1 May 2002. More... [related stories]
Risk of fetal death increases with pesticide exposure. According to a study published in the March 2001 issue of Epidemiology, the risk of congenital birth defects leading to fetal death is increased if the mother is living within a 9 square mile area within which agricultural pesticides are being used. The largest risks are found when exposure takes place during weeks 3-8 of the pregnancy. Exposures to multiple types of pesticides increased the risk further. 1 March 2001. More... [related stories]
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