Low levels of lead may prove damaging
Source: Agencies |
January 13, 2010, Wednesday
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Print Edition
Print Edition
TINY amounts of lead are common in American teenagers' blood and may damage their kidneys, researchers reported on Monday.
They found evidence of early kidney damage in children with lead levels far below what is normally considered dangerous and said this could lead to kidney disease later.
"To our knowledge, this is the first study to show that very low levels of lead may impact kidney function in healthy children, which underscores the need to minimize sources of lead exposure," said Dr Jeffrey Fadrowski of Johns Hopkins University in Baltimore, who led the study.
They studied test results from 769 adolescents aged 12 to 20 who took part in the Third National Health and Nutrition Examination Survey from 1988 to 1994.
When divided into four equal groups, those in the quarter with the highest lead levels had evidence of slowing kidney function.
They found evidence of early kidney damage in children with lead levels far below what is normally considered dangerous and said this could lead to kidney disease later.
"To our knowledge, this is the first study to show that very low levels of lead may impact kidney function in healthy children, which underscores the need to minimize sources of lead exposure," said Dr Jeffrey Fadrowski of Johns Hopkins University in Baltimore, who led the study.
They studied test results from 769 adolescents aged 12 to 20 who took part in the Third National Health and Nutrition Examination Survey from 1988 to 1994.
When divided into four equal groups, those in the quarter with the highest lead levels had evidence of slowing kidney function.
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