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c/glp1science·posted 2 years ago by u/swirl_dont_shake

[Lab] 21th independent test on QSC, and the trend is the interesting part

Needs Source Clean Column ×8 Slow Clap ×1 Well Actually ×3

gastric emptying. That is the whole post, but I will justify it.

Everything else people worry about in c/survodutide is downstream of it. Titration speed, reflux, the endless dose arguments — most of it resolves if you sort gastric emptying out first, and almost nobody does.

I say this having got it wrong for 16 months. My fasting insulin was the thing that eventually made me pay attention, which is a stupid way to learn a lesson that was in the sidebar the whole time.

4,627 up / 547 down89% upvoted30 commentsid 1xplz911 Mar 2024

30 comments

19 in this archive, depth 5

best — the order this archive was captured in

u/enzo_danquah637 points·2 years ago

Respectfully this is a sample of one presented as a finding.

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u/annika_fonseca399 points·2 years ago

the 6-day half-life means week 6 is still ramp-up pharmacokinetically

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u/bastian_ekstrom195 points·2 years ago

That is net peptide content, not purity. Different number, different meaning.

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u/anders_kuusela66 points·2 years ago·edited

glucagon-receptor contribution is half-life for dual and triple agonism

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u/zeynep_villalobos471 points·2 years ago

Respectfully this is a sample of one presented as a finding.

Adding to this: mechanism is doing more work than the comment implies.

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u/milos_vanhecke601 points·2 years ago

Strongly agree. Central appetite is real but people overstate it.

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u/emil_agyeman505 points·2 years ago

glucagon-receptor contribution is pharmacology for dual and triple agonism

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u/tomas_broberg480 points·2 years ago

amylin is not GLP-1, posts conflating them get corrected

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u/wholesome_lurker404 points·2 years ago

The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.

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u/swirl_dont_shakeOPreconstitution193 points·2 years ago

The pharmacology literature is interesting but rodent models do not scale linearly to human dosing.

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u/vomit_free_since147 points·2 years ago

do not extrapolate rodent data to human dosing without saying so

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u/enzo_danquah67 points·2 years ago·edited

do not extrapolate rodent data to human dosing without saying so

Yes, exactly this, and it is the bit that took me 7 weeks to accept.

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u/viktor_girard33 points·2 years ago

Rodent, human, or in vitro?

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u/emil_agyeman128 points·2 years ago

rodent half-life tells you what to investigate, not what to expect in humans

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[removed]60 points·2 years ago

[removed by moderator]

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u/ismael_eriksen-26 points·2 years ago

Sceptical. If this were true we would see it reflected in the data and we do not.

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u/swirl_dont_shakeOPreconstitution237 points·2 years ago

This is correct. Rodent data is investigational, not predictive.

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u/employer_carveout298 points·2 years ago

Stomach physiology changed when I moved up to 12.5mg. Gastric emptying lag is the whole story.

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u/dose_creep_dan129 points·2 years ago

Mechanistically the bit that matters is pharmacology. It explains most of the early profile and a decent chunk of the outcome.

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About c/glp1science

The mechanism layer: incretin physiology, receptor distribution, gastric emptying, central appetite signalling, glucagon-receptor contribution, amylin co-agonism, and the pharmacokinetics that make weekly dosing possible. Papers get cited by journal and year or they get a [needs source] reply.

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