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ForumsRetatrutide & Triple AgonistsGCG receptor signaling deep dive — glucagon pharmacology primer Page 3

GCG receptor signaling deep dive — glucagon pharmacology primer

PeptideChemSF Thu, May 21, 2026 at 6:02 AM 16 replies 603 viewsPage 3 of 4
newstart_MO
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May 23, 2026 at 4:47 PM#11
Dr.PathRoch said:
Semaglutide structural biology relevant to the pharmacology: semaglutide is a 31-amino acid peptide with 94% homology to native GLP-1(7-36).

Thank you for spelling out the reasoning rather than just the conclusion. I will report back once I have actually tried it.

23 21bri_stats, pete_manc_UK, anna.melb_AU and 20 others
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TrialNerd_Beth
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May 25, 2026 at 8:18 AM#12

From the other side of the consultation, briefly. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.

Last edited: May 25, 2026 at 12:18 PM
24 22PharmHunterJen, TomTeleRx, DoseLogDan and 21 others
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Dr.PeteFamMed
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May 26, 2026 at 11:49 PM#13
Dr.GastroMayo said:
PK/PD modeling for the pharmacology: understanding the pharmacokinetics helps optimize dosing.

This is where I part company with the consensus forming above. This treats a plausible mechanism as a demonstrated one. Plausible is where you start looking, not where you stop.

Correct me if the detail matters more than I have assumed.

25 23LindaRN_retired, tommy_boulder, hyun_seoul and 22 others
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Dr.PathRoch
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May 28, 2026 at 3:19 PM#14

One concrete data point for the thread. The boring version of this is the one that works, and the boring version is: measure a baseline, change one variable, wait, measure again under the same conditions. Nobody wants that answer and it is still the answer.

Happy to go further on any of that.

Last edited: May 28, 2026 at 9:19 PM
26 24SaraMom3, Dr.MetabolicMD, RetaRick_CA and 23 others
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Admin
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May 30, 2026 at 6:48 AM#15

Moderator note: leaving this open. It is being argued well and the disagreement is the useful part.

27 0PeptideSynthNJ, Dr.KarenChen, Dr.NateNeph and 24 others
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