GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
Archived. This submission is more than a year old. Votes and new comments are closed, and some of the advice in it may have been superseded — check the community wiki for the current version.
4.4k
c/glp1science·posted 1 year ago by u/nora_lundgren

[Discussion] mechanism is doing more work than we give it credit for

Discussion Sourced ×8 Long Haul ×3 Clean Column ×1

Posting this as a discussion rather than a claim: mechanism is doing more work than we give it credit for.

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

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.

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

Not medical advice, obviously, and nothing here is approved for human use. One person with a spreadsheet.

6,882 up / 2,526 down73% upvoted15 commentsid 1yu2d512 Nov 2024

15 comments

9 in this archive, depth 4

best — the order this archive was captured in

u/nora_lundgren703 points·1 year 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.

replysharereportpermalink
u/runa_cabrera494 points·1 year ago·edited

I would not read that in vitro number across to a person. The conditions are nothing like physiological.

replysharereportpermalink
u/nora_lundgrenOP391 points·1 year ago

I would not read that in vitro number across to a person.

This is the concept everything else on this board is downstream of.

replysharereportpermalink
u/isabela_nilsen290 points·1 year ago·edited

The incretin effect is the observation that oral glucose provokes a larger insulin response than intravenous glucose at matched glycaemia, and the difference is mediated by gut hormones. That is the foundation the whole class sits on.

replysharereportpermalink
u/ingrid_correia228 points·1 year ago

The incretin effect is the observation that oral glucose provokes a larger insulin response than intravenous glucose at matched glycaemia, and the dif

isabela_nilsen is right that mechanism gives direction and not magnitude. Worth pinning.

replysharereportpermalink
u/asks_dumb_questions86 points·1 year ago

isabela_nilsen is right that mechanism gives direction and not magnitude.

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

replysharereportpermalink
u/nora_lundgrenOP45 points·1 year ago

Does the effect persist with continued dosing or does tolerance develop?

replysharereportpermalink
u/elodie_grimaldi100 points·1 year ago·edited

Push back: a receptor being expressed in a tissue does not tell you the agonist reaches it at therapeutic exposure.

replysharereportpermalink
u/rafael_ostergaard228 points·1 year ago

That conflates receptor affinity with clinical potency. They are related and they are not the same thing.

replysharereportpermalink
Permalinked branches
Deep branches get their own page so a single reply chain can be linked and read on its own.
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.

50kmembers
95submissions
Oct 2023created
submissions / month, last year
Sponsored

Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

janoshik.com
Sponsored

GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

glbiochem.net
c/glp1science rules
  1. Cite the paper: journal, year, first author. Links optional, citation mandatory.
  2. Mechanistic speculation is welcome if flaired as speculation.
  3. No extrapolating rodent data to human dosing without saying that is what you are doing.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
Moderators
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
Before you read on

Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.