The discovery of a rare genetic mutation that prevents formation of brain plaques associated with Alzheimer’s disease may be proof that the idea behind a new class of drugs in development is valid, scientists said.
In separate probes into the roots of Alzheimer’s, scientists have uncovered a rare gene mutation that keeps plaque from forming in the brain and found the disease may take hold 25 years before symptoms appear.
Children of older fathers are known to be more at risk for diseases including schizophrenia and autism. Now, a new scientific look at the genes passed down within families may have pinpointed a reason why.
Gene testing companies such as 23andMe Inc . and DeCode Genetics Inc. should be regulated because consumers may make wrong medical decisions based on inaccurate or misinterpreted results, scientists said.
Four gene-testing companies are misleading U.S. consumers by providing unclear or conflicting information on the risk of disease, according to a government investigator who sampled the services on the Internet.