If Americans ever eat genetically engineered fast-growing salmon, it might be because of a Soviet biologist turned oligarch turned government minister turned fish farming entrepreneur.

The Environmental Protection Agency on Monday said that the widely used herbicide 2,4-D would remain on the market, denying a petition from an environmental group that sought to revoke the chemical

Researchers on Sunday reported initial signs of success from the first release into the environment of mosquitoes engineered to pass a lethal gene to their offspring, killing them before they reach

New tests are coming to market that can detect Down syndrome in a fetus using a sample of the mother’s blood, potentially reducing the need for riskier invasive tests while also stirring ethical co

Five more patients who were being treated with the drug Avastin for eye disease have been blinded, according to one of the patients and medical professionals.

At least 16 people in two states have gotten severe eye infections, and some have been blinded, from injections of the drug Avastin, according to health authorities and to lawyers representing the

In a closely watched case, a federal appeals court ruled on Friday that genes can be patented, overturning a lower court decision that had shocked the biotechnology industry.

A federal advisory committee voted 9 to 6 on Tuesday that a first-of-its-kind diabetes drug should not be approved for use because of safety concerns, including a possible increased risk of breast and bladder cancers.

The advisory committee to the Food and Drug Administration said that while the drug, dapagliflozin, had some attractive features as a treatment for type 2 diabetes, there were too

On Tuesday, a committee that advises the Food and Drug Administration is to consider whether the first of those drugs can overcome safety concerns and reach the market.

The outcome of the F.D.A. review is far from certain. The drug, dapagliflozin, might raise the risk of breast and bladder cancer, liver damage and infections of the genitals and urinary tract, according to an F.D.A.

The Agriculture Department has exempted a genetically engineered grass from federal regulation, a decision that some critics say could portend a loosening in oversight of biotech crops.

The department said that an herbicide-tolerant Kentucky bluegrass being developed by Scotts Miracle-Gro was not subject to federal regulation because its creation did not entail use of any plant pests.

The de

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