Gene may help explain kidney failure in African-Americans - CNN.com: (CNN) -- A single gene, called MYH9, may be responsible for many cases of kidney disease among African-Americans, researchers say.
Although doctors have blamed hypertension for causing common forms of kidney disease in African-Americans, new research shows that high blood pressure may not be the chief cause.
"The MYH9 gene association in African-American kidney disease is the most powerful genetic cause of a common disease yet discovered," said Dr. Barry Freedman, professor of internal medicine and nephrology at Wake Forest University, who led a team of researchers in isolating the gene.
About 70 percent of African-Americans with non-diabetic forms kidney disease have the MYH9 gene, and many of them end up on dialysis, he said. The gene predisposes African-Americans to the kidney disease that was thought to stem from high blood pressure. It also gives them a higher risk of kidney disease associated with HIV.
