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They're Not All Good

In a recent study, scientists at the Department of Veterans Affairs Medical Center in Oklahoma City found that Enterococcus faecalis bacteria living in the gut can damage DNA and up gene expression linked to colon cancer, reports the BBC. They exposed colon cells in vitro to the bacterium and found that when it was in a "fermentation state," it produced a "superoxide" molecule that could damage DNA in surrounding cells. They also found that expression of 42 genes linked to vital processes in human cells was altered by the presence of E. faecalis. But, says the University of Liverpool's Barry Campbell, a gut microbiology researcher, "There are also many other factors which are involved, such as genetics and environment."

The Scan

Rise of BA.5

The New York Times reports that the Omicron subvariant BA.5 has become the dominant version of SARS-CoV-2 in the US.

UK Health Secretary Resigns

Sajid Javid, the UK health secretary, resigned along with Chancellor Rishi Sunak, saying they cannot work with Prime Minister Boris Johnson's government, CNN reports.

Clones From Freeze-Dried Cells

A team in Japan has cloned mice from freeze-dried skin cells, according to the Guardian.

Genome Research Papers on Craniosynostosis, Macaque Retrotransposition, More

In Genome Research this week: structural variants in craniosynostosis, LINE-1 activity in rhesus macaque brain, and more.