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c/glp1science·posted 3 months ago by u/ferran_batista

[Question] incretin — what am I missing here

Question

incretin — what am I missing here. I am not trying to be the "source?" guy. I would just like a source.

Was completely wrong about the gastric emptying story in a thread here two years ago. Someone corrected me with a citation and I have not made that mistake since.

The half-life explanation was the thing that made weekly dosing intuitive for me rather than arbitrary.

Tried to build a mental model from mechanism alone and produced a confident prediction that the trial data flatly contradicted.

Sceptical readings welcome. The confident ones are the ones I distrust.

109 up / 36 down75% upvoted11 commentsid y80soe24 Apr 2026

11 comments

11 in this archive, depth 4

best — the order this archive was captured in

u/isabela_nilsen16 points·3 months ago·edited

Tolerance to the gastric effect develops with continued exposure while the appetite effect largely persists. That single fact explains most of the "it settles but it still works" pattern the side-effect board reports.

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u/bilal_osei14 points·3 months ago

Read the primary paper after arguing about the summary for a fortnight. The discussion section said almost the opposite of what the thread had concluded.

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u/kian_balogun8 points·3 months ago

Spent an evening on the receptor distribution literature and the side-effect map suddenly stopped looking random.

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u/farid_kuipers5 points·3 months ago

the central appetite effect is doing more work than the gut effect

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u/sig_figs_sammod · analytical3 points·3 months ago

Is that from a human study or a preclinical model?

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u/ferran_batistaOP2 points·3 months ago·edited

Small fix — it slows gastric emptying, it does not halt it, and the distinction matters for the mechanism you are proposing.

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u/osman_eriksen4 points·3 months ago

GIP is the arm people argue about because the biology is genuinely unsettled

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u/ismael_chukwu1 point·3 months ago

What does the discussion section say about the limitation you are glossing?

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u/osman_eriksen1 point·3 months ago

Yes. The central component is the one that explains the reports on this site better than gastric emptying does.

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u/kian_balogun1 point·3 months ago

glucagon agonism sounds paradoxical until you read the energy expenditure work

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u/piotr_grimaldi1 point·3 months ago

Long half-life in this class comes from structural modification that promotes albumin binding and resists enzymatic degradation. Weekly dosing is a consequence of the molecule, not a convenience decision.

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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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