Anal oxygen administration may save lives

FISH BREATHE through their gills. That much is well-known. But some fish are also able to breathe through their bottoms. The guts of vertebrates are well supplied with blood vessels, to enable them to absorb digested food. But this means they can also, in principle, absorb oxygen. And that is precisely what happens in species such as the weather loach .Cell

The notion that intestinal oxygen might be medically beneficial surfaced briefly in the mid-20th century, though experimental evidence swiftly crushed it. But Dr Takebe observed that the experiments in question had failed to consider a crucial fact. Mammalian rectums are lined with layers of mucous which could limit the exchange of gases. To test the intestinal breathing hypothesis properly, this mucous would need to be removed, to grant oxygen direct access to the intestinal wall.

Buoyed by these results, the team sought a less traumatic means of delivering the gas. They settled on liquid perfluorocarbons, which can absorb large amounts of oxygen and are often used as a blood substitute or to assist the ventilation of premature babies. The quantity of oxygen carried by such liquids, combined with the extra pressure they applied to the intestinal lining, meant scraping away the mucous was no longer necessary.

Excellent... now we’ll have a choice among two horrible options.

Be handy for uphill cycling when i need all the air i can get!!

Breathing through your end?

You guys over there give it a try and then let us know your experience. Cheers...

💨

Ahh hell to the no. I can't go out like that Chief.

They're trying to blow smoke up our asses

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