Effect of Environmental Exposures on the Egg Fertilizing Ability of Human Sperm
Male InfertilityTesticular Diseases2 moreOur data indicate that environmental exposure to the heavy metal lead are more widespread than currently appreciated and that such exposures are associated with the production of human male subfertility. Lead's effects are observed in male partners of infertile couples attending an IVF clinical, in men acting as semen donors in an artificial insemination program and in men representative of the general public. Our goal is to identify the mechanism(s) underlying lead's anti-fertility action.
Environmental Contaminants and Infant Development
Mercury PoisoningLead PoisoningThis study is designed to examine the effects of prenatal exposure to environmental contaminants on cognitive and behavioral development and physical growth in two groups of Inuit infants-one in Northern Quebec; the other in Greenland.
Early Exposure to Lead and Adolescent Development
Lead PoisoningThis prospective cohort study examines the role of prenatal and early postnatal lead exposure on the neuropsychological status and social adjustment of adolescents enrolled in the Cincinnati Lead Study. We are examining the relationship between moderate exposure to lead and neuropsychological deficits, difficulties in peer relationships, personality disturbances and juvenile delinquency. This birth cohort of approximately 300 subjects has been followed since 1980 with regularly scheduled assessments of blood lead concentrations, health history, social and hereditary factors, and neurobehavioral development.
The Combined Effect of 2,3-Dimercaptosuccinic Acid and Multi-Nutrients on Children in Lead Poisoning...
Lead PoisoningLead poisoning remains a common disease among children despite successful public health efforts that reduced its prevalence.Our study was designed to test the hypothesis that lead-poisoning children (BLLs:100-440µg/L) who were given DMSA and multi-nutrients would have a greater fall than children of other groups at 12 weeks of follow-up.
Lead Mobilization & Bone Turnover in Pregnancy/Lactation
Lead PoisoningWe are examining the role of maternal bone lead turnover during pregnancy and lactation as a potential source of lead exposure for the fetus and the infant (via breast milk). A cohort, ascertained at entry to care, consists of >1000 women to be followed through pregnancy. In the postpartum subjects are recruited for a nested case control study to assess the influence of lactation on maternal bone density, maternal blood lead and breast milk lead.
Plan for Testing Fingerstick Bloods on Magellan Systems
Lead PoisoningThis study is to supplement our internal data that demonstrates the continued performance of capillary blood samples on Magellan's lead testing systems: LeadCare II, LeadCare Ultra (which have been cleared previously by FDA), and PediaStat, which is an upgraded LeadCare II instrument in development.