Overweight children exposed to lead in utero may have poor future kidney function
2021-03-05
(Press-News.org) New York, NY (March 5, 2021) - Overweight children who were exposed to lead in utero and during their first weeks of life have the potential for poorer kidney function in adulthood, according to an Icahn School of Medicine at Mount Sinai study published in Environment International in March.
The study found that children with high body mass indexes who had been exposed to lead had lower estimated glomerular filtration rate (eGFR), a measure of how well the kidneys are filtering or cleaning the blood. The researchers measured blood levels during mothers' pregnancy and later measured eGFR levels in the children when they were between 8 and 12 years old.
Decreased kidney function is a driver of hypertension, which is a major risk factor for cardiovascular disease, the leading cause of death in the developed world. Obesity is a well-known risk factor for hypertension and chronic kidney disease, and before now, the convergence of kidney toxicants found in the environment and childhood obesity had not been previously studied.
"This is the first study to assess an association between perinatal lead exposure at multiple times in early life with eGFR measured in preadolescence," said senior author Alison Sanders, PhD, Assistant Professor of Environmental Medicine and Public Health, and Pediatrics, at Icahn Mount Sinai. "Future longitudinal assessments of exposure to kidney toxicants and preadolescent kidney function will improve our understanding of risk factors for kidney impairment and associated comorbidities."
This epidemiological study of Mexican children is ongoing and will follow the children into adolescence. The study was conducted in Mexico because children there are exposed to higher levels of lead and experience higher risk for kidney problems than American children. Additional study is needed to confirm the relevance of these findings in other populations.
INFORMATION:
About the Mount Sinai Health System
The Mount Sinai Health System is New York City's largest academic medical system, encompassing eight hospitals, a leading medical school, and a vast network of ambulatory practices throughout the greater New York region. Mount Sinai is a national and international source of unrivaled education, translational research and discovery, and collaborative clinical leadership ensuring that we deliver the highest quality care--from prevention to treatment of the most serious and complex human diseases. The Health System includes more than 7,200 physicians and features a robust and continually expanding network of multispecialty services, including more than 400 ambulatory practice locations throughout the five boroughs of New York City, Westchester, and Long Island. The Mount Sinai Hospital is ranked No. 14 on U.S. News & World Report's "Honor Roll" of the Top 20 Best Hospitals in the country and the Icahn School of Medicine as one of the Top 20 Best Medical Schools in country. Mount Sinai Health System hospitals are consistently ranked regionally by specialty and our physicians in the top 1% of all physicians nationally by U.S. News & World Report.
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[Press-News.org] Overweight children exposed to lead in utero may have poor future kidney function
