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c/glp1science·posted 8 months ago by u/kavya_kravchenko

[Question] how do you actually verify receptor

Question

how do you actually verify receptor. I would rather ask a basic question now than get this wrong quietly for two months.

Started reading limitations sections first. It has changed how much weight I give to almost everything posted here.

Asked a question here that I thought was stupid and got three papers back. Best thread I have been in on this site.

The mental model, in four steps, that makes the rest of this site legible.

One: gut hormones amplify the insulin response to food. Two: agonists at those receptors act peripherally on insulin secretion and gastric emptying, and centrally on appetite. Three: structural modification gives them a long half-life, so exposure is smooth and weekly. Four: tolerance develops to some effects and not to others.

From those four, most of what the experience boards report falls out: why the side effects cluster early, why they settle at a stable dose, why appetite reduction persists, and why the scale and the appetite move on different clocks.

Tell me where this is wrong. That is the useful part of posting it.

0 up / 0 down47% upvoted6 commentsid yrevgq20 Nov 2025

6 comments

6 in this archive, depth 3

best — the order this archive was captured in

u/hassan_castellanos3 points·8 months ago

Receptor expression in a tissue is necessary but not sufficient for an effect. You also need the agonist to reach it at relevant exposure, and that is where a lot of confident mechanism talk falls down.

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u/rasmus_kimani2 points·8 months ago

Receptor expression in a tissue is necessary but not sufficient for an effect.

Adding the caveat the paper itself makes in its limitations section, which is stronger than anything in this thread.

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u/anya_salgado2 points·8 months ago

What was the exposure in that experiment relative to therapeutic?

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u/annika_fonseca2 points·8 months ago

half-life is why these are weekly and not daily

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u/gastric_emptying_gMOD1 point·8 months ago

Asked for a citation rather than removing. On this board a claim without one is an invitation, not an offence.

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u/wholesome_lurker1 point·8 months ago

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.

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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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