New oxygen gel could prevent amputation in diabetic wound patients - Science Daily

A critically endangered roloway monkey has given birth only months after a pioneering operation spared her from having her foot amputated. Masaya, a 15-year-old roloway monkey living at Chester Zoo, underwent complex surgery last summer after developing a golf-ball-sized mass on her foot. Zoo veterinarians worked with surgeons from the University of Liverpool's Small Animal Teaching Hospital to remove the mass and preserve as much of the foot as possible.

It’s unsurprising that cutting off your brain’s access to the oxygen it needs to run its routine processes can significantly affect it. That’s especially true for freedivers, people who hold their breath for minutes at a time as they try to swim as deep into the ocean as humanly possible. Normally, starving your brain leads straight to rapid neuron death, seizures, and catastrophic memory impairment, mostly because the hippocampus takes the first hit when oxygen dries up. Yet, according to a bioRxiv study led by neuroscientist Julia Micaux of the University of Paris-Saclay, free divers who hold their breath for extended stretches somehow don’t suffer the kind of major brain meltdown you’d expect.