London: Scientists have discovered a genetic switch that influences the heart`s health, a finding they say offers new insights into the genetic roots of congenital heart disease and could lead to developing new treatments for this potentially fatal disorder. Scientists from the Gladstone Institute in San Francisco found that a specific gene in mice which fails to turn off at the right time in an embryo`s development could mean illness later in life. They found that rodents in which the gene was left active were born apparently healthy, but suffered heart muscle problems later.
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