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c/glp1science·submitted 11 months ago by u/yannick_barros

appetite is the most under-discussed thing on this board

Needs Sourcebranch of 11 comments

appetite is the most under-discussed thing on this board. Change my mind, genuinely — I have no stake in being right about this. GIP receptor biology is genuinely unsettled — there is a live argument about agonism versus antagonism at the receptor — and the clinical results are robust regardless, which is an…

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11 comments, started 11 months ago
u/niels_roos65 points·11 months ago

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/bastian_eriksen-16 points·11 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/camila_mensa54 points·11 months ago

mechanism explains a direction, not a magnitude

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u/yannick_barrosOP29 points·11 months ago

mechanism explains a direction, not a magnitude

Disagreeing with this specific inference — that is a preclinical result being read as human pharmacology.

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u/yannick_barrosOP17 points·11 months ago

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/nadia_fonseca4 points·11 months ago

gastric emptying slows, it does not stop

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u/mod_ambulatoryadmin31 points·11 months ago

Not convinced by the linearity assumption. Dose-response in this class is not linear and the trials show it.

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[removed]47 points·11 months ago

[removed by moderator]

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u/isabela_nilsen25 points·11 months ago

Agreed that receptor distribution is the key to the side-effect map. It is not a mystery, it is anatomy.

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u/aleksi_eriksen30 points·11 months ago

That study was in a rodent model. Worth stating, since the thread has been reading it as human data.

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u/osman_eriksen24 points·11 months ago

read the discussion section, that is where the honesty lives

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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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