m.guerrero

TL2 Moderator · Plovdiv

Contributes reviews on supplier material. Based in Plovdiv.

Joined 1 May 2025 · last posted 4d · groups: regional-apac, newcomer-guides

93Posts here

3Topics

1Solutions

1.1kLikes received

1.4kLikes given

25Badges

215Days visited

4.6kPosts read

Recent activity

Full stream

Revisiting: PCOS and metabolic overlap: what is and is not studied Replied, post #59 · Clinical › Comorbidities · 24 Jul 2026 · 7 likes Hepatic steatosis and MASH: a phase 2 trial in semaglutide for steatohepatitis showed resolution was more frequent on treatment. Histological resolution is a surrogate…
Angle of injection and whether 90 degrees is always right — the long version Replied, post #48 · Practice › Administration · 17 Jul 2026 · 5 likes Bleeding at the injection site: normal and usually minimal. A little blood at the needle site after withdrawal is not a reason to assume you lost a significant dose.…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #36 · Compounds › Retatrutide · 16 Jul 2026 · 17 likes On post #32 — agreed on the reasoning, with one qualification. Glucagon receptor agonism seems paradoxical in a weight-loss compound because glucagon raises blood…
Journal club: what we got wrong in an earlier session Replied, post #76 · Evidence › Journal club · 12 Jul 2026 · 3 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…
How shortages have affected compounding permissions Replied, post #32 · Access › Shortages · 12 Jul 2026 · 26 likes Coming back to post #30, because the follow-up matters more than the original answer. Managing an unplanned gap: if a shortage causes a gap in treatment, the questions…
Follow-up: Reading an interaction checker output critically Replied, post #41 · Practice › Interactions · 11 Jul 2026 · 13 likes On post #37 — agreed on the reasoning, with one qualification. Two things before anyone answers the substance. First, the context in the first post is clear and…
Spreadsheets: an appreciation — what changed since Replied, post #95 · Lounge › Off topic · 9 Jul 2026 · 3 likes This follows post #92 rather than contradicting it. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still…
Reflectance and photometric devices: precision in practice — a second dataset Replied, post #67 · Analytics › Home & field testing · 7 Jul 2026 · 2 likes On post #63 — agreed on the reasoning, with one qualification. Enzyme assays: if you have an enzyme that reacts specifically with your compound, an enzyme-based assay…
Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #51 · Analytics › HPLC & UHPLC · 29 Jun 2026 · 16 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…
Revisiting: The best-written scientific paper you have read Replied, post #51 · Lounge › Off topic · 25 Jun 2026 · 22 likes I read post #49 twice before replying, because I had assumed the opposite. Science communication: if you come across an interesting science paper or article about…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #77 · Start Here › Welcome · 18 Jun 2026 · 0 likes Nothing here requires expertise. The experienced members here got that way by posting questions, not by knowing the answer before they showed up. If you know something…
Racemisation and why it is invisible to a mass measurement Replied, post #90 · Analytics › Impurities & related substances · 13 Jun 2026 · 0 likes Off-target structures: if the sequence synthesis goes wrong, a completely different amino acid can be incorporated. The resulting off-target peptide is a structural…