As a rule of thumb, it’s best to assume that all studies like this are in mice or rats unless the headline specifically says “in human trials”.

Murine studies are a dime a dozen and therefore it’s the default assumption when reading research papers. When human trials commence the fact that it’s in humans is a big part of the research and therefore paper titles.

I would be in favor of adding a standardized [in mice] to the titles of all HN submissions about medical breakthroughs. Most of them end up being in mice and many do not reproduce in humans. It would help, at a glance, to know how significant a study's results are.

Thanks, we've inmiced the title.

Of course it was done in mice, tests with animals are obviously mandatory before human trials.

They've given more lives to humanity than humanity itself (j/k)

Ah, I was wondering if it was one of those. And of course there's a relevant xkcd [0]

[0] https://xkcd.com/1217/