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A New Role for Viagra?

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A new study published in PNAS is adding to the list of health problems Viagra could be used to treat, says Forbes' David DiSalvo. The study says that sildenafil, the compound sold as Viagra, could be used to treat malignant melanoma as it appears to counteract inflammation caused by a tumor. The researchers gave a group of mice with melanoma Viagra in their drinking water, and found that after seven week, twice as many mice in the treatment group survived compared with untreated control mice, DiSalvo says. "And in the treated mice, T cell counts had returned to normal — indicating that they weren’t being suppressed by the tumor’s inflammatory response — and molecules within the T cells that would typically be deactivated by the tumor’s immune response had also returned to normal," he adds.

The Scan

Not Immediately Told

The US National Institutes of Health tells lawmakers that one of its grantees did not immediately report that it had developed a more infectious coronavirus, Science says.

Seems Effective in Kids

The Associated Press reports that the Pfizer-BioNTech SARS-CoV-2 vaccine for children appears to be highly effective at preventing symptomatic disease.

Intelligence Warning on Bioeconomy Threats

US intelligence warns over China's focus on technologies and data related to the bioeconomy, the New York Times reports.

PLOS Papers on Campylobacteriosis Sources, Inherited Retinal Dystrophies, Liver Cancer Prognosis

In PLOS this week: approach to uncover source of Campylobacteriosis, genetic risk factors for inherited retinal dystrophies, and more.