Word: lead
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...Africa for longer than anywhere else and have had some 200,000 years to develop genetic differences. "It is the cradle of mankind. If you are looking for the full range of human genetic variation, it's the place to look," says Stephan Schuster of Pennsylvania State University, the lead author of the study...
...telephone press conference from Namibia, Hayes said the participants' advanced age (all were over 80) makes scientists confident that they are unlikely to carry rare genetic variations that lead to fatal disease, so they can focus on more subtle and common variations. Indeed, one of the participants, a Bushman hunter-gatherer known as !Gubi (the "!" expresses the palatal tick in his native language) was so robust that Hayes could not keep up with him in a rope-skipping competition. (See the top 10 medical breakthroughs...
...team of Harvard researchers recently identified a gene that may play a direct role in developing aggressive prostate cancer—a discovery they said could lead to a more accurate technique to test for the disease...
...Understanding how this gene [DAB2IP] regulates metastasis at a deeper level...can ultimately lead to a new step in understanding not just prostate cancer, but how metastasis occurs,” said HMS Professor William C. Hahn ’87, an author of the paper...
...That might come as a surprise to the hundreds of Indonesians that still die each year of tuberculosis, malaria, dengue fever and other treatable illnesses. As for myself, I wondered how something as treatable as vernal conjunctivitis, which generally afflicts allergy sufferers, could lead to blindness. I had to go back to the U.S. to find out what at least six doctors here couldn't decipher; a doctor in Michigan diagnosed my problem in five minutes. "You have a case of vernal conjunctivitis," the cornea specialist told me. "If your doctors over there had looked under your eyelid they would...