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Weight-loss drug found to shrink muscle in mice, human cells

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234 points Eumenes | 1 comments | 20 Nov 24 23:53 UTC | HN request time: 0.209s | source
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talkingtab ◴[21 Nov 24 01:21 UTC] No.42200046[source]▶
It concerns me how discussions, such as this one go on HN. This is an important topic. With the epidemic of obesity we now find a drug that appeals to a large number of people. This is an important topic as well.

What is the current comment receiving most of the comment?

"That's the sort of headlines that smells like bullshit to me"

That's the sort of comment that smells like bullshit to me. What kind of place is this?

Many times I find the posts on HN interesting, but increasingly these kind of comments make me wonder about Y Combinator. Is this really the best they can do?

And for us readers who are supposed to be so called hackers, is this the best we can do?

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1. photochemsyn ◴[21 Nov 24 02:45 UTC] No.42200579[source]▶
The developers of these new peptide-based hormone-acting drugs like semaglutide(ozempic) could be called biohackers, but the system they're hacking on - the human endocrine system - is a delicate system. Introducing semi-synthetic mimics of native hormones can go wrong in all kinds of ways, and hormone-analogue drugs have a poor track record (anabolic steroids, DES, etc.) so extra caution makes sense.

Semaglutide is based on a 31-amino acid polypeptide that mimics the human GLP-1 hormone. At position 26, the lysine side chain is conjugated with a fatty diacid chain, to slow degradation and prolongs half-life, and there are some other modifications. However, the target - the GLP receptor - is not just expressed in the intestinal tract but all through the body, in muscle, central nervous system, immune system, kidneys and others. So some unexpected effects beyond the desired ones are likely.

Semaglutide was recently shown to have potent effects on the heart, and possibly beneficial to certain heart disease conditions associated with obesity. Makes me suspect this drug should be restricted to clinically obese cases where strong intervention with close medical supervision is needed. However for healthy people who just want to lose a relatively small amount of weight it really doesn't seem wise.

"Semaglutide ameliorates cardiac remodeling in male mice by optimizing energy substrate utilization..." (June 2024)

https://www.nature.com/articles/s41467-024-48970-2