The cell fragments play a role in the body’s first line of defense against bacterial infection, helping white blood cells grab blood-borne bacteria in the liver.
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A panel of advisors says that the agency should loosen restrictions on the sale of a diabetes drug with a spotty clinical safety record.
Turning cell phones into basic research tools can improve health care in the developing world.
Researchers use DNA from ancient tooth tartar to chart changes in the bacterial communities that have lived in human mouths for 8,000 years.
A mass poisoning of 105 patients treated with an untested medication spurred Congress to empower the US Food and Drug Administration to monitor drug safety.
As new infections surface and spread, science meets the challenges with ingenuity and adaptation.
Malaria parasites transmitted via mosquitoes elicit a more effective immune response and cause less severe infection than those directly injected into red blood cells.
Researchers discover a microbe living at -15°C, the coldest temperature ever reported for bacterial growth, giving hope to the search for life elsewhere in the cosmos.
The activity of one type of immune cell helps regrow the limbs of amputated salamanders.
From now on, US physicians and researchers will have to get approval from the FDA before they can perform a stool transplant.
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