UCLA researchers are using a radioactive tracer, which binds to abnormal proteins in the brain, to see if it is possible to diagnose chronic traumatic encephalopathy in living patients. Warmer colors in these PET scans indicate higher concentrations of the tracer.
Some critically ill patients who received a CAR-T cell treatment have remained cancer-free for as long as five years, researchers say. But the price is high.
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Sunscreens containing minerals like zinc oxide and titanium dioxide reflect the sun's rays away from skin and are a good alternative to chemicals that could be harmful to ocean reefs.
Photo illustration by Eslah Attar/NPR
Gilead Sciences makes Truvada, a medicine known generically as "pre-exposure prophylaxis," or PrEP. Consistent, daily doses of the drug are thought to reduce the risk of getting HIV from sex by more than 90 percent.
CRISPR and other gene technology is exciting, but shouldn't be seen as a panacea for treating illness linked to genetic mutations, says science columnist and author Carl Zimmer. It's still early days for the clinical applications of research.