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In U.S. first, scientists edit genes of human embryos

For the first time in the United States, scientists have edited the genes of human embryos, a controversial step toward someday helping babies avoid inherited diseases. The experiment was just an exercise in science — the embryos were not allowed to develop for more than a few days and were never ...

Small sea sponge holds big promise against pancreatic cancer

/ Jul 27, 2017

Small sea sponge holds big promise against pancreatic cancer

A small dull-green sponge discovered in dark, icy waters of the Pacific off Alaska could be the first effective weapon against pancreatic cancer, researchers said Wednesday. Pancreatic cancer, with particularly aggressive tumors, is notoriously difficult to treat. "One would never have imagined, looking at this sponge, ...

Sperm counts falling sharply in West

/ Jul 27, 2017

Sperm counts falling sharply in West

Sperm counts in men from America, Europe, Australia and New Zealand have dropped by more than 50 percent in less than 40 years, researchers said on Tuesday. They also said the rate of decline is not slowing. Both findings — in a meta-analysis bringing together ...

South African girl is third child with HIV remission

/ Jul 24, 2017

South African girl is third child with HIV remission

A South African girl has become only the third child to beat the AIDS virus into long-term remission — almost nine years and counting — after receiving a drug cocktail in infancy, researchers announced Monday. The child was given a 10-month course of anti-AIDS medicine ...