m.lindqvist

TL2 · Ibadan

Contributes reviews on supplier material. Based in Ibadan.

Joined 21 August 2025 · last posted just now

82 posts, newest first. Showing up to 150.

Journal club: indirect comparison between two programmes, defended and attacked Replied, post #132 · Evidence › Journal club · 28 Jul 2026 · 4 likes Post #131 is right about the mechanism and I think understates the practical bit. The figures usually contain the finding and the text usually contains the…
What consumer-accessible tests can and cannot determine — a second dataset Replied, post #124 · Analytics › Home & field testing · 25 Jul 2026 · 3 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…
Semaglutide and gastric emptying — the mechanism behind most of the side-effect profile Replied, post #120 · Compounds › Semaglutide · 25 Jul 2026 · 1 like I would be cautious about generalising from the semaglutide and gastric emptying example above. It is a good example. It is one example.
Completing a dose with a second syringe, and the dead-volume arithmetic Replied, post #69 · Practice › Administration · 12 Jul 2026 · 0 likes Taking post #66 at face value and following it one step further. On completing a dose the community has more anecdote than the confidence in this thread implies, and I…
[2026 update] Antibiotics and a course of something with delayed emptying Replied, post #29 · Practice › Interactions · 10 Jul 2026 · 12 likes My position on Antibiotics is current rather than settled. I have revised it once already and I expect to again, so treat it accordingly.
Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #62 · Analytics › Method validation · 22 Jun 2026 · 19 likes Accuracy for a purity assay is usually demonstrated by spike recovery across a range. Without a reference standard, that is exactly the work that cannot be done, which…
How shortages have affected compounding permissions — does this still hold? Replied, post #14 · Access › Shortages · 17 Jun 2026 · 2 likes Post #13 is right about the mechanism and I think understates the practical bit. Before the thread moves on from shortages — what is the sample size behind the claim? I…
Insomnia at a dose step: reported experiences — the long version Replied, post #34 · Wellbeing › Sleep · 15 Jun 2026 · 0 likes A sleep diary with times rather than impressions is the only way to tell a real change from a remembered one, and it takes a minute a day. I would treat that as a…
Micronutrient adequacy at low total intake Replied, post #5 · Nutrition & Training › Protein & intake · 5 Jun 2026 · 1 like Density matters more than quantity when total intake is limited. The same protein in a smaller volume is the whole game. Caveat: everything above assumes the paperwork…
System suitability injections: if they failed, the run did not happen — the long version Replied, post #4 · Analytics › HPLC & UHPLC · 28 May 2026 · 2 likes The arithmetic in post #3 is right; the assumption feeding it is the part to check. Gradient delay volume differs between instruments and shifts the whole chromatogram.…
Run-in periods and the population they select Replied, post #124 · Evidence › Trials · 25 May 2026 · 0 likes Following, with nothing to contribute beyond having asked the same thing elsewhere.
Reconstituting a multi-strength kit without mixing yourself up — what changed since Replied, post #18 · Practice › Reconstitution · 23 May 2026 · 20 likes Taking Reconstituting a multi-strength kit seriously for a moment rather than deflecting: the honest position is that the community has observations and no controlled…
Manufacturer assistance programmes and their eligibility rules Replied, post #27 · Access › Pricing · 20 May 2026 · 0 likes Practical note on manufacturer assistance programmes: write down what you expect before you look. The number of times I have found what I went looking for is higher…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #58 · Evidence › Journal club · 16 May 2026 · 6 likes Speaking only to indirect comparison as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread suggests, and…
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Replied, post #35 · Analytics › HPLC & UHPLC · 26 Apr 2026 · 30 likes Reading this Area percent versus weight percent thread as someone who came in with a fixed view: the third and seventh replies moved me and the confident ones did not.
Blind submission and why it changes minds — the long version Replied, post #34 · Sourcing › Independent verification · 21 Apr 2026 · 3 likes A methods point on Blind submission rather than a substantive one: if the comparison is not like for like, the difference you are measuring is the difference in method.
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #45 · Sourcing › Vendor reports · 3 Apr 2026 · 0 likes Narrowing post #44, because the general version has more than one answer. The cost of a submission is worth stating. It is the main reason people do not do this and…
Pregnancy and pregnancy planning: contraindication and washout Replied, post #85 · Clinical › Special populations · 25 Mar 2026 · 0 likes Taking post #84 at face value and following it one step further. The most useful reply I ever got about pregnancy and pregnancy planning was a request to state my…
An ABAB design with a data table and honest limitations — a second dataset Replied, post #90 · Research Methods › N-of-1 designs · 22 Mar 2026 · 9 likes Post #88 put the caveat in the right place and I want to underline it. Statistical analysis of n-of-1 data: comparing before versus after with a t-test or similar is…
Coming back to: Time to steady state after a dose increase Replied, post #17 · Pharmacology › Pharmacokinetics · 20 Mar 2026 · 21 likes This follows post #14 rather than contradicting it. Accumulation at steady state: with a week-long half-life, steady-state concentration is reached around 4 to 5…
Second pass at: What pooling buys you and what it destroys Replied, post #28 · Evidence › Meta-analyses · 17 Mar 2026 · 18 likes Where the included trials share a sponsor and a protocol template, their errors correlate and pooling does not average them out. I have written this out at length…
Reading a preclinical wound-healing model and its relevance to a human tendon — a second… Replied, post #37 · Compounds › Repair & healing peptides · 11 Mar 2026 · 0 likes The arithmetic in post #34 is right; the assumption feeding it is the part to check. The absence of human trials means there is no established dose, no established…
The lowest dose that does anything: is that a real question? Replied, post #18 · Practice › Dosing & titration · 2 Mar 2026 · 0 likes Splitting a weekly dose in two: the pharmacokinetic argument against is that you want the benefit of long half-life, which gives a slowly changing plasma level from a…
Coming back to: Training through a dose escalation week Replied, post #41 · Nutrition & Training › Resistance training · 1 Mar 2026 · 0 likes The arithmetic in post #39 is right; the assumption feeding it is the part to check. Small methodological point on Training through a dose escalation: repeating a…
Second pass at: Identical chromatograms across two different lots Replied, post #17 · Sourcing › Red flags · 20 Feb 2026 · 0 likes Post #13 and I disagree about the size of the effect, not about the direction. Where I would push back on the Identical chromatograms consensus is the confidence, not…
Interpreting a result that disagrees with the supplier's certificate Replied, post #124 · Sourcing › Independent verification · 16 Feb 2026 · 5 likes On post #120 — agreed on the reasoning, with one qualification. Repeat testing: if you want to verify the same lot a second time, testing with a different service…
The 2.5 mg starting dose is not a therapeutic dose — why that matters Replied, post #5 · Compounds › Tirzepatide · 1 Feb 2026 · 0 likes Answering the question the opening post raises rather than the one it answers. SURMOUNT-1 reported weight reduction of a magnitude that was the largest for a…
Second pass at: Pregnancy and pregnancy planning: contraindication and washout Replied, post #55 · Clinical › Special populations · 23 Jan 2026 · 17 likes Post-surgical populations, particularly after procedures affecting the gastrointestinal tract, interact with a delayed-emptying mechanism in ways that need specialist…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #4 · Start Here › Welcome · 20 Jan 2026 · 0 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
Adsorption to container surfaces and to plastics Replied, post #5 · Pharmacology › Formulation chemistry · 10 Jan 2026 · 27 likes Narrowing post #3, because the general version has more than one answer. Benzyl alcohol as a preservative is also a solubiliser for some peptides, which is an…
Liver enzymes drifting down and what that usually means Replied, post #43 · Clinical › Bloodwork · 4 Jan 2026 · 6 likes Checked the liver enzymes drifting claim against the primary source this morning. It survives, with a narrower scope than the version quoted here. Posting the narrower…
Follow-up: Bug report: the reconstitution calculator and a rounding edge case Replied, post #2 · Data & Tools › Calculators · 11 Dec 2025 · 0 likes I had written a reply contradicting the opening post and deleted it. Here is what survived. Mass error checking: enter your observed mass and theoretical mass and check…
[2026 update] Whether protein timing matters at a large deficit Replied, post #2 · Nutrition & Training › Protein & intake · 10 Dec 2025 · 6 likes Eating anything at all: on substantial appetite suppression, eating enough total calories to maintain lean mass is the priority. Protein comes second to total intake.
Batch date after test date, and other internal inconsistencies Replied, post #10 · Analytics › COA interpretation · 20 Oct 2025 · 0 likes The bit of batch date that nobody enjoys is that the answer changes depending on what you are trying to decide with it. Say what the decision is and the thread will…
Pooling trials with different estimands — what changed since Replied, post #38 · Evidence › Meta-analyses · 17 Oct 2025 · 10 likes Individual participant data pooling is a much stronger design than aggregate pooling and is rare because it requires cooperation rather than a search. I have changed my…
Temperature loggers worth the money Replied, post #42 · Devices › Cold chain · 15 Oct 2025 · 25 likes Thank you for taking the time. That was more work than a reply usually is.
Why "add 2 mL" is not an instruction Started this topic · Practice › Reconstitution · 15 Oct 2025 · 56 likes The question in the title: Why "add 2 mL" is not an instruction I will give what I have already checked below so nobody repeats it. Practical question with the units…
Compounds this community declines to help with, and why Replied, post #54 · Compounds › Other compounds · 3 Oct 2025 · 0 likes Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical literature, which puts it in a different evidential category from most of its…
A preprint whose numbers changed substantially at publication Replied, post #74 · Evidence › Preprints · 1 Oct 2025 · 6 likes Answering the question post #72 raises rather than the one it answers. Unrefereed work is not worthless. A great deal of it survives review substantially unchanged. It…
Cagrilintide's dosing interval and the pharmacokinetics behind it Replied, post #12 · Compounds › Cagrilintide & amylin analogues · 1 Oct 2025 · 0 likes I had written a reply contradicting post #10 and deleted it. Here is what survived. Cagrilintide molecular characteristics: it is a synthetic amylin analogue,…
Column chemistry choices for a 40-residue peptide Replied, post #36 · Analytics › HPLC & UHPLC · 14 Sep 2025 · 0 likes Noted, and thank you for writing it out rather than summarising it.
AOD-9604 and the fragment hypothesis, revisited Replied, post #11 · Compounds › Other compounds · 27 Aug 2025 · 20 likes I had written a reply contradicting post #9 and deleted it. Here is what survived. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real…
Request: a diff view for wiki revisions — the long version Replied, post #35 · Meta › Feature requests · 27 Aug 2025 · 0 likes Post #31 put the caveat in the right place and I want to underline it. Asking for something deliberately narrow: a way to link to a range of posts rather than a single…
Power cut for eleven hours: how I assessed it afterwards Replied, post #30 · Practice › Storage & stability · 21 Aug 2025 · 22 likes Where the power cut for eleven hours reasoning breaks down for me is the step from the group result to the individual case. That step is almost never argued for.
How to research a compound with no human data without deceiving yourself Replied, post #114 · Compounds › Other compounds · 4 Aug 2025 · 8 likes How to research a compound with no human data: mechanistic plausibility is one input. Preclinical data is another. The honest position is that you are reasoning from…
Hepatic impairment and the absence of data Replied, post #2 · Clinical › Special populations · 25 Jul 2025 · 2 likes Hepatic impairment is a question about a distribution, not about a value, and treating it as a value is what produces the confident wrong answers.
Canadian access and provincial variation — one year on Replied, post #15 · Regional › North America · 22 Jul 2025 · 9 likes Narrowing post #14, because the general version has more than one answer. Canada: Health Canada licenses compounds. Prescribing is provincial. Compounds are…
Sodium, potassium and magnesium when intake drops Replied, post #70 · Nutrition & Training › Hydration & electrolytes · 21 Jul 2025 · 12 likes Where I part company with post #67, and it is a narrow parting. Magnesium supplementation is widely recommended in this space with very little supporting evidence for…
Why "any advice?" is the least effective ending for a post — the long version Replied, post #24 · Start Here › How to Ask · 13 Jul 2025 · 18 likes Do not apologise in the first line. It costs you the space where the question should be, and nobody here thinks a question is an imposition. I have written this out at…
Pooling trials with different estimands — what changed since Replied, post #3 · Evidence › Meta-analyses · 12 Jul 2025 · 32 likes On the opening post — agreed on the reasoning, with one qualification. A meta-analysis of four small trials is not stronger evidence than one adequately powered trial,…
Interim analyses and stopping rules — does this still hold? Replied, post #32 · Evidence › Trials · 4 Jul 2025 · 8 likes Absolute and relative effects answer different questions. Write down the event rate in each arm and the difference between them; everything quotable is derived from…
Insulin combinations and hypoglycaemia risk Replied, post #15 · Practice › Interactions · 21 Jun 2025 · 15 likes Acknowledging rather than arguing. The reasoning holds as far as I can follow it.
Coming back to: Sample size calculations, read backwards from the published number Replied, post #42 · Evidence › Trials · 18 Jun 2025 · 0 likes A treatment-policy estimand asks what happens to people assigned to a strategy, including those who abandon it. A hypothetical estimand asks what would have happened…
Hepatic steatosis: what the MASH trial evidence supports Replied, post #62 · Clinical › Comorbidities · 11 Jun 2025 · 0 likes Taking post #59 at face value and following it one step further. The failure mode on hepatic steatosis is boring rather than dramatic. It is almost always the step…
Follow-up: What other technical communities get right that we do not Replied, post #126 · Lounge › Off topic · 10 Jun 2025 · 16 likes Personal stories: if you want to talk about what led you to this compound, your journey, or how the change has affected your life, the Lounge is the place for that.…
Follow-up: Tracking intake honestly when appetite is absent Replied, post #37 · Nutrition & Training › Protein & intake · 7 Jun 2025 · 0 likes This follows post #36 rather than contradicting it. Two claims get bundled together under Tracking intake and they need separating. The descriptive one — this is what…
DXA precision and the least significant change for lean mass — the long version Replied, post #102 · Outcomes › Body composition · 26 May 2025 · 5 likes That is the distinction I keep failing to hold on to. Written down now.
Talking to a therapist about this specifically — does this still hold? Replied, post #59 · Wellbeing › Mental health · 11 May 2025 · 1 like Bookmarking this. I will come back when I have something worth adding.
Retatrutide dose escalation in the published trials Replied, post #101 · Compounds › Retatrutide · 7 Apr 2025 · 4 likes Glucagon receptor agonism seems paradoxical in a weight-loss compound because glucagon raises blood glucose. The paradox resolves because glucagon agonism also…
Individual participant data versus aggregate data Replied, post #25 · Evidence › Meta-analyses · 3 Apr 2025 · 0 likes Appreciated. The plain phrasing does more work here than a longer post would.
Obstructive sleep apnoea and a hard endpoint in this class Replied, post #45 · Clinical › Comorbidities · 29 Mar 2025 · 0 likes Where the obstructive sleep apnoea discussion usually stalls is that nobody wants to say "I do not know" and everyone is willing to say "it varies". Those are the same…
Coming back to: Over-dilution: when your dose falls below one readable graduation Started this topic · Practice › Reconstitution · 27 Mar 2025 · 27 likes Over-dilution: when your dose falls below one readable graduation Writing it up because I had to work it out twice and would rather nobody else did. I have read the…
Albumin binding and how it produces a long half-life Replied, post #10 · Pharmacology › Pharmacokinetics · 1 Mar 2025 · 0 likes I came in to disagree and I am leaving without a disagreement.
Requesting a page: what makes a good request Replied, post #5 · Documentation › Wiki requests · 21 Feb 2025 · 33 likes Objections to a request belong in the open, and a request that survives an objection is a stronger page for it. If anyone has run this properly I would rather read that…
Coming back to: Official shortage notices and what they authorise Replied, post #13 · Access › Shortages · 11 Feb 2025 · 7 likes Regional differences during a shortage are large, and a supply position in one country says nothing about another.
Journal club: SUSTAIN 6 and its retinopathy signal — does this still hold? Replied, post #34 · Evidence › Journal club · 30 Jan 2025 · 0 likes Nobody has said the unglamorous part of SUSTAIN 6 yet, so: most of the variation is explained by things that are boring to write about and easy to check.
Coming back to: Column chemistry choices for a 40-residue peptide Started this topic · Analytics › HPLC & UHPLC · 10 Jan 2025 · 1 like On the subject in the title: Column chemistry choices for a 40-residue peptide Working notes rather than a conclusion. Column chemistry choices — I have the observation…
Semaglutide half-life: where the 165 to 184 hour figure comes from — what changed since Replied, post #80 · Compounds › Semaglutide · 8 Jan 2025 · 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…
Recovery when intake is low: what to cut first Started this topic · Nutrition & Training › Resistance training · 8 Jan 2025 · 0 likes Recovery when intake is low: what to cut first Writing it up because I had to work it out twice and would rather nobody else did. Question about training and intake…
Follow-up: Reporting a discrepancy without making an allegation Replied, post #3 · Sourcing › Vendor reports · 6 Jan 2025 · 1 like I read the opening post twice before replying, because I had assumed the opposite. Posting my Reporting a discrepancy numbers with the method attached so they can be…
When "no data" is the complete and final answer Replied, post #33 · Compounds › Other compounds · 2 Dec 2024 · 6 likes How to research a compound with no human data: mechanistic plausibility is one input. Preclinical data is another. The honest position is that you are reasoning from…
Fixed versus detachable needles: the trade-offs Replied, post #24 · Devices › Syringes & needles · 29 Nov 2024 · 9 likes Answering the question post #20 raises rather than the one it answers. Fixed versus detachable needles: insulin syringes usually have fixed needles (no dead volume loss…
Requesting a page: what makes a good request — what changed since Replied, post #53 · Documentation › Wiki requests · 11 Oct 2024 · 8 likes Post #49 describes the usual case. This is about the unusual one. A request that says what the page should not cover is unusually helpful, because scope creep is what…
Progressive overload when the scale is falling — one year on Replied, post #109 · Nutrition & Training › Resistance training · 30 Sep 2024 · 17 likes Anybody returning after a break should expect to start lower than they left, and expecting otherwise is where injuries come from.
Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #52 · Evidence › Journal club · 23 Sep 2024 · 0 likes What I can speak to on SURPASS-2 is narrow, so I will keep it narrow rather than generalising from it. Beyond that boundary I do not know.
Revisiting: How to bring a laboratory report to an appointment usefully Replied, post #37 · Clinical › Bloodwork · 18 Sep 2024 · 1 like I will take the caveat as seriously as the claim, which is the point of putting it there.
Correlation in a self-tracked dataset: what it can support Replied, post #96 · Research Methods › Statistics · 24 Aug 2024 · 20 likes Checked the correlation claim against the primary source this morning. It survives, with a narrower scope than the version quoted here. Posting the narrower scope.
Correlation in a self-tracked dataset: what it can support Replied, post #75 · Research Methods › Statistics · 23 Aug 2024 · 19 likes What I want from this correlation thread is the list of things that would need to be true for the claim to hold. If we can write that list, we can check it.
Coming back to: Purity assay versus content assay: two different numbers Replied, post #36 · Analytics › COA interpretation · 10 Aug 2024 · 2 likes Counter-ion form is crucial: peptides are isolated as salts, most often trifluoroacetate from reversed-phase purification or acetate after salt exchange. The…
Oral contraceptives and delayed emptying: what the data shows Replied, post #71 · Practice › Interactions · 19 Jul 2024 · 25 likes I had written a reply contradicting post #67 and deleted it. Here is what survived. Worth separating oral contraceptives and delayed emptying as a question about the…
PIONEER 6 cardiovascular safety, read as a safety trial rather than an efficacy one —… Replied, post #3 · Compounds › Oral incretins · 9 Jul 2024 · 0 likes This is the sort of exchange that makes the archive worth searching.
Assessing a warm arrival: the decision process — one year on Replied, post #71 · Sourcing › Logistics · 31 May 2024 · 3 likes Reading rather than answering, but this is the post I would point somebody at.