e.verhoeven

TL2 Moderator · Tours

Contributes reviews on supplier material. Based in Tours.

Joined 17 August 2025 · last posted 9h

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Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #68 · Analytics › HPLC & UHPLC · 28 Jul 2026 · 33 likes Peak purity: a diode-array detector records a spectrum at every time point. If a peak contains two co-eluting species with different spectra, the spectrum changes…
Stepping down deliberately, and how to do it without losing progress — what changed since Replied, post #92 · Practice › Dosing & titration · 24 Jul 2026 · 0 likes Stepping down deliberately: the withdrawal trials show that stopping is followed by regain. The step-down literature is thinner. The conservative assumption is that…
Prior authorisation: what the criteria usually require — a second dataset Replied, post #33 · Access › Insurance & coverage · 16 Jul 2026 · 0 likes Coming back to post #31, because the follow-up matters more than the original answer. Denial letters: the stated reason tells you exactly what to submit next. A denial…
Common supplements people ask about, assessed one at a time Replied, post #51 · Practice › Interactions · 15 Jul 2026 · 17 likes Picking up post #48: that is the part I would want checked first. Food interactions: most interactions are absorption interactions. Some medications absorb better with…
What I would want from a home test that does not exist yet Replied, post #38 · Analytics › Home & field testing · 15 Jul 2026 · 0 likes Molecular tests: DNA or RNA tests are not applicable to peptides, which do not contain nucleic acids. Peptide-specific tests rely on protein recognition, not…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #35 · Evidence › Journal club · 7 Jul 2026 · 3 likes Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing. The correction was fair and I had…
Journal club: what we got wrong in an earlier session Replied, post #62 · Evidence › Journal club · 7 Jul 2026 · 23 likes SURPASS-2 (N Engl J Med 2021): Direct comparison of tirzepatide with semaglutide 1.0 mg. The 1.0 mg dose is not the highest available, which is the central and…
Personal or family history of medullary thyroid carcinoma — what changed since Replied, post #92 · Safety › Contraindications · 29 Jun 2026 · 0 likes Allergy to the specific compound: true allergy is rare but possible. Any prior allergic reaction to the same compound or to structurally similar peptides warrants…
Journal club: orforglipron phase 2 and the non-peptide question Replied, post #101 · Evidence › Journal club · 24 Jun 2026 · 1 like post #100 is right about the mechanism and I think understates the practical bit. Session format: read the paper before posting. The discussion is much better when…
Semaglutide and gastric emptying — the mechanism behind most of the side-effect profile Replied, post #68 · Compounds › Semaglutide · 18 Jun 2026 · 1 like Semaglutide versus liraglutide in STEP 8: semaglutide produced greater weight reduction and the discontinuation rates differed. But the trial was open-label for the…
Revisiting: Can a home kit substitute for a laboratory report? A careful no Replied, post #36 · Analytics › Home & field testing · 17 Jun 2026 · 22 likes Worth separating two things that post #32 runs together. Lateral-flow devices: like a rapid COVID test. They have a reagent strip and produce a colour result. They are…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #112 · Practice › Storage & stability · 9 Jun 2026 · 0 likes I read post #110 twice before replying, because I had assumed the opposite. Two things before anyone answers the substance. First, the context in the first post is…