m.dalgaard

TL3 Regular · Odense, DK

Health economist by training, which mostly means I am tedious about cost-effectiveness claims.

Joined 26 December 2024 · last posted 1d · groups: journal-club, translators

136 posts, newest first. Showing up to 150.

Revisiting: The best-written scientific paper you have read Replied, post #119 · Lounge › Off topic · 27 Jul 2026 · 6 likes Answering the best-written scientific paper question as asked, then the question I think is meant. As asked: yes, with the qualification below. As meant: it depends on…
Reused chromatograms across lots: how to spot it Replied, post #59 · Analytics › COA interpretation · 20 Jul 2026 · 0 likes Summarising the reused chromatograms across lots thread so far, since it is long and the answer is buried: the first reply has the method, the fourth has the correction…
What is genuinely unknown about long-term amylin agonism Replied, post #48 · Compounds › Cagrilintide & amylin analogues · 17 Jul 2026 · 0 likes Everything in post #46 holds. The case it does not cover is the one I have. Comparing an amylin analogue to an incretin agonist on weight change alone misses that they…
Coming back to: Preparing for an appointment: one page, three questions Replied, post #6 · Clinical › Prescriber conversations · 16 Jul 2026 · 0 likes Bringing a record of symptoms with dates and severities makes an assessment materially easier and is the single most useful preparation.
Reading a rodent study on a secretagogue without over-extrapolating — the long version Replied, post #40 · Compounds › Secretagogues & GH axis · 14 Jul 2026 · 0 likes The pulsatile character of endogenous growth hormone release is why a secretagogue and exogenous growth hormone are not interchangeable, and why a single measured level…
Osteoarthritis and mechanical versus metabolic improvement — one year on Replied, post #42 · Clinical › Comorbidities · 12 Jul 2026 · 0 likes Osteoarthritis and mechanical versus metabolic came up in a thread eighteen months ago and was answered well. I cannot find it, which is itself the problem, so here is…
Follow-up: The most useful thing you learned here that was not the answer you came for Replied, post #22 · Lounge › Off topic · 9 Jul 2026 · 13 likes Newer drugs and mechanisms: when a new drug launches or a new mechanism is discovered, the Lounge is a place to discuss the news and speculate before hard data exists.…
Reading a home test result without over-claiming Replied, post #107 · Analytics › Home & field testing · 5 Jul 2026 · 25 likes The right question for any home test is: what physical quantity does it measure, and what would have to be true for that quantity to answer your question? Most…
Muscle cramps: the ordinary causes before the exotic ones — a second dataset Replied, post #26 · Practice › Side effects · 2 Jul 2026 · 0 likes Answering the question post #25 raises rather than the one it answers. The published rates come from populations that were titrated on a defined schedule with clinical…
An 18-month record including the parts that went badly Replied, post #48 · Outcomes › Progress reports · 22 Jun 2026 · 0 likes Confirming post #45 from a second method, which matters more than confirming it from a second person. Self-reported intake is optimistic in a consistent direction, and…
Revisiting: The best-written scientific paper you have read Replied, post #44 · Lounge › Off topic · 21 Jun 2026 · 11 likes I would rather this thread reach "we do not know" about best-written scientific paper than reach a confident answer that nobody can support when asked.
Asking a follow-up: new topic or new reply? Replied, post #17 · Start Here › How to Ask · 20 Jun 2026 · 0 likes Coming back to post #13, because the follow-up matters more than the original answer. The version of asking a follow-up that I was taught turned out to be a teaching…
Peak-to-trough ratio at steady state for a weekly agent — the long version Replied, post #27 · Pharmacology › Pharmacokinetics · 17 Jun 2026 · 8 likes Quietly grateful for the plain phrasing. Not every thread gets that.
Sulfonylureas: the interaction most worth taking seriously — what changed since Replied, post #2 · Practice › Interactions · 15 Jun 2026 · 8 likes Everything in the opening post holds. The case it does not cover is the one I have. Insulin interaction: semaglutide and tirzepatide are not contraindicated with…
Blinding yourself: practical methods and their limits — the long version Replied, post #5 · Research Methods › N-of-1 designs · 14 Jun 2026 · 0 likes Duration should be set by how long an effect would take to appear rather than by patience. Stopping early is the commonest reason a personal experiment answers nothing.…
A critique that turned out to be unfair, retracted by its author Replied, post #12 · Evidence › Study critique · 14 Jun 2026 · 3 likes Adding a small correction to the critique summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that matters.
An appeal that succeeded, with the letter structure — the long version Replied, post #83 · Access › Insurance & coverage · 11 Jun 2026 · 0 likes Keep every document with dates in one place. An appeal months later is assembled from whatever you kept.
Prescription requirements and telehealth models — a second dataset Replied, post #57 · Sourcing › Regulatory · 8 Jun 2026 · 13 likes Adding what did not work for me on Prescription requirements and telehealth models, since the failures never get written up and they are half the useful information.
Follow-up: Tirzepatide and nausea: is the profile genuinely different or just… Replied, post #119 · Compounds › Tirzepatide · 2 Jun 2026 · 7 likes Half-life difference: tirzepatide is about 5 days versus semaglutide's week-long. Practically, that means steady state is reached slightly faster and the post-dose…
Coming back to: Time to steady state after a dose increase Replied, post #67 · Pharmacology › Pharmacokinetics · 2 Jun 2026 · 30 likes Volume of distribution: the theoretical volume the drug distributes into. For albumin-binding compounds, volume is reduced compared to drugs that do not bind protein.…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #66 · Start Here › Welcome · 30 May 2026 · 28 likes You do not need to introduce yourself before asking a question, and nobody will think worse of you for arriving with one. The introductions subcategory exists for…
Revisiting: Taste changes and food aversion, reported and discussed Started this topic · Practice › Side effects · 30 May 2026 · 53 likes Revisiting: Taste changes and food aversion, reported and discussed Writing it up because I had to work it out twice and would rather nobody else did. Two things I…
Journal club: orforglipron phase 2 and the non-peptide question Replied, post #74 · Evidence › Journal club · 26 May 2026 · 26 likes Orforglipron phase 2 is worth one more sentence than it usually gets, and the sentence is the one about how the number was arrived at.
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one — one… Replied, post #21 · Compounds › Oral incretins · 26 May 2026 · 0 likes On variability: the between-person spread in exposure for oral semaglutide is wide enough that two people on the same dose can have quite different plasma…
Hair shedding at month three: mechanism and time course — the long version Replied, post #15 · Practice › Side effects · 22 May 2026 · 24 likes The relationship between symptom burden and outcome is not what people assume. Feeling worse is not evidence of a larger effect and feeling nothing is not evidence of…
0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #41 · Devices › Syringes & needles · 15 May 2026 · 5 likes Adding a small correction to the 0.3 ml versus 0.5 ml summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that…
Coming back to: Time to steady state after a dose increase Replied, post #52 · Pharmacology › Pharmacokinetics · 13 May 2026 · 0 likes Body weight affects volume of distribution and therefore exposure at a fixed dose. Whether that translates into a dosing implication depends on the width of the…
Gastro-oesophageal reflux: improving or worsening? Replied, post #43 · Clinical › Comorbidities · 8 May 2026 · 0 likes Where I part company with post #41, and it is a narrow parting. Small methodological point on gastro-oesophageal reflux: repeating a measurement is cheap and resolves…
Endotoxin and why it is a separate question from purity — what changed since Replied, post #4 · Analytics › Impurities & related substances · 23 Apr 2026 · 13 likes The claim about Endotoxin upthread is stronger than its source supports. I have read the source. The source says "associated with" and the post says "causes".
Recording a dissent on a document rather than suppressing it Replied, post #12 · Documentation › Doc review · 20 Apr 2026 · 4 likes Second maintainers matter. A single maintainer is a single point of failure and every document here that went stale had one.
Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #45 · Practice › Administration · 15 Apr 2026 · 4 likes Narrowing post #42, because the general version has more than one answer. If you have to inject at a different time of day than usual, that is a much smaller…
Anaesthesia and elective surgery: the aspiration question Replied, post #86 · Practice › Interactions · 14 Apr 2026 · 1 like Post #83 and I disagree about the size of the effect, not about the direction. An honest declaration on anaesthesia and elective surgery: I have a prior here and it is…
Official shortage notices and what they authorise Replied, post #6 · Access › Shortages · 13 Apr 2026 · 24 likes Whatever the answer on official shortage notices turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, invite…
Follow-up: I have no scientific background — can I still follow the analytics categories? Replied, post #7 · Start Here › Welcome · 5 Apr 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…
Journal club: orforglipron phase 2 and the non-peptide question Replied, post #23 · Evidence › Journal club · 24 Mar 2026 · 6 likes Helpful, and short, which on this subject is harder than long.
Dizziness on standing and the electrolyte explanation — does this still hold? Replied, post #59 · Practice › Side effects · 22 Mar 2026 · 9 likes Reading rather than answering, but this is the post I would point somebody at.
Managing an unplanned gap in supply Replied, post #61 · Access › Shortages · 15 Mar 2026 · 9 likes Where a manufacturer publishes a supply statement, that document is more reliable than any aggregation of individual experiences. On balance I think that is right, and…
Reading a preclinical wound-healing model and its relevance to a human tendon — a second… Replied, post #47 · Compounds › Repair & healing peptides · 12 Mar 2026 · 0 likes Reading a preclinical wound-healing model: the model shows whether a mechanism is plausible in a specific context. It does not show magnitude of effect in humans, does…
Second pass at: Adsorptive losses at low concentration, and why dilute solutions are… Replied, post #44 · Practice › Storage & stability · 19 Feb 2026 · 0 likes Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed. I am aware this is the third time this…
[2026 update] Confounding by indication, explained with a concrete example Replied, post #50 · Evidence › Study critique · 13 Feb 2026 · 0 likes Confounding: in observational data, is there a third variable that explains the apparent association? In randomised data, randomisation should balance unknown…
Storing lyophilised material long term: what governs the shelf life Replied, post #63 · Practice › Storage & stability · 13 Feb 2026 · 7 likes I have been on both sides of the storing lyophilised material long term argument in this category within eighteen months, which should tell you how strong the evidence…
Adsorption to container surfaces and to plastics Replied, post #17 · Pharmacology › Formulation chemistry · 9 Feb 2026 · 14 likes I read post #16 twice before replying, because I had assumed the opposite. Counter-ion exchange from trifluoroacetate to acetate is a purification step with a cost, and…
Storing lyophilised material long term: what governs the shelf life Replied, post #52 · Practice › Storage & stability · 5 Feb 2026 · 0 likes This follows post #50 rather than contradicting it. The useful distinction on storing lyophilised material long term is between what was measured and what was inferred…
Revisiting: Sample handling between despatch and injection Replied, post #7 · Analytics › Method validation · 20 Jan 2026 · 5 likes Narrowing post #4, because the general version has more than one answer. The distinction between a qualified instrument and a validated method is worth keeping. Both…
Reconstitution volumes that produce round numbers, tabulated Replied, post #24 · Practice › Reconstitution · 12 Jan 2026 · 4 likes Write the reconstitution date and the concentration on the vial. Not on a note, on the vial. Every account here of a dosing error involving the wrong concentration…
Second pass at: The topic list is dense — is that deliberate? Replied, post #39 · Meta › Site feedback · 8 Jan 2026 · 23 likes The arithmetic in post #36 is right; the assumption feeding it is the part to check. Navigation problems: if you cannot find something you expected to exist, or the…
Foaming during reconstitution and whether it matters — the long version Replied, post #2 · Practice › Reconstitution · 3 Jan 2026 · 19 likes Preservative effectiveness is tested against a defined microbial challenge under defined conditions. It is not a licence to treat an entered vial as sterile…
Anxiety in the first weeks: drug, situation, or both — what changed since Replied, post #65 · Wellbeing › Mental health · 19 Dec 2025 · 0 likes Post #62 and I disagree about the size of the effect, not about the direction. If you are in crisis, contact a local emergency or crisis service rather than posting. A…
DXA precision and the least significant change for lean mass Replied, post #63 · Outcomes › Body composition · 12 Dec 2025 · 2 likes Useful. I had the fact and not the reason, which turns out to be the important half.
Tracking a preprint to publication: a worked example Replied, post #103 · Evidence › Preprints · 10 Dec 2025 · 25 likes Post #100 answers the question as asked. The question underneath it is different. Where a preprint contradicts a published trial, the prior should favour the trial.…
Reading an interaction checker output critically Replied, post #53 · Practice › Interactions · 28 Nov 2025 · 20 likes Everything in post #51 holds. The case it does not cover is the one I have. Anything that also slows gut motility compounds the same mechanism. That is a plausibility…
Documentation that materially improves an appeal's chances Replied, post #80 · Access › Insurance & coverage · 27 Nov 2025 · 1 like On post #77 — agreed on the reasoning, with one qualification. I changed my mind about documentation after someone here asked me for the source and I could not produce…
Persistent vomiting and the threshold for seeking help Replied, post #67 · Safety › Adverse events · 11 Nov 2025 · 4 likes Reporting here and reporting to a national scheme are not alternatives. The second is what feeds safety surveillance. This is the version I would want a new member to…
Sleep tracking data and its considerable limitations Replied, post #119 · Wellbeing › Sleep · 29 Oct 2025 · 0 likes Post #117 and I disagree about the size of the effect, not about the direction. Obstructive sleep apnoea: pre-existing OSA can worsen with weight before it improves…
Older adults, sarcopenia risk, and the trade-off nobody quantifies — the long version Replied, post #42 · Clinical › Special populations · 28 Oct 2025 · 7 likes Appreciated. The plain phrasing does more work here than a longer post would.
Comparing my trajectory with the trial curves, carefully Replied, post #64 · Outcomes › Progress reports · 20 Oct 2025 · 27 likes Menstrual cycle: for people who menstruate, weight can shift by several pounds across the cycle due to fluid retention and other factors. Noting cycle phase when…
SURMOUNT-4 and what withdrawal data does and does not tell an individual — one year on Replied, post #11 · Compounds › Tirzepatide · 19 Oct 2025 · 2 likes Gastrointestinal effects were comparable in character to the GLP-1 monoagonists across the programme. Individual reports here vary in both directions, which is what you…
SURMOUNT-4 and what withdrawal data does and does not tell an individual — one year on Replied, post #6 · marked as the solution · Compounds › Tirzepatide · 18 Oct 2025 · 13 likes Worth separating two things that post #2 runs together. Comparisons between the tirzepatide and semaglutide programmes across trials rather than within one are weak.…
Adolescents: a distinct evidence base — one year on Replied, post #22 · Clinical › Special populations · 5 Oct 2025 · 4 likes Dedicated trials in under-studied populations are the only real remedy and several are ongoing, which is worth saying rather than speculating. I have deliberately not…
A parcel that arrived warm: a decision process, not a verdict Replied, post #69 · Practice › Storage & stability · 5 Oct 2025 · 0 likes Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.
Documentation that appears only after payment Replied, post #40 · Sourcing › Red flags · 4 Oct 2025 · 0 likes Same experience here, different supplier, so it is at least not unique to one of them.
Citing a preprint in a maintained document: our rule and its reasoning — does this still… Replied, post #112 · Evidence › Preprints · 4 Oct 2025 · 7 likes Where numbers change between preprint and published version, the changes are not random. They tend toward a smaller effect and a more carefully hedged claim. The rule…
Cagrilintide's dosing interval and the pharmacokinetics behind it Replied, post #64 · Compounds › Cagrilintide & amylin analogues · 4 Oct 2025 · 0 likes Nothing to add on the substance. Thank you for taking the question at face value.
Insomnia at a dose step: reported experiences Replied, post #13 · Wellbeing › Sleep · 26 Sep 2025 · 9 likes Right — I had this wrong and I am glad to have read it before it mattered.
Needle changes between doses on a reusable pen Replied, post #37 · Devices › Pens & autoinjectors · 22 Sep 2025 · 7 likes The click count on a dialled pen is a mechanical property of that pen and is not a universal unit. Counting clicks across two different devices is not a conversion.
Pinch or no pinch, and how needle length changes the answer Replied, post #50 · Practice › Administration · 6 Sep 2025 · 24 likes Post #47 answers the question as asked. The question underneath it is different. The single most common technique error described here is drawing to the wrong…
Immortal time bias in a claims-database study Replied, post #31 · Evidence › Study critique · 26 Aug 2025 · 0 likes Small methodological point on immortal time bias: repeating a measurement is cheap and resolves most of what is being argued about here at no cost to anyone.
Are there stupid questions here? A staff answer, at length Replied, post #113 · Start Here › Welcome · 25 Aug 2025 · 12 likes If you want a fast orientation, read three solved topics in the subcategory you care about. Solved means somebody said the answer worked, which is more signal than…
Second pass at: Why this subcategory is stricter about sourcing than most Replied, post #73 · Compounds › Secretagogues & GH axis · 17 Aug 2025 · 8 likes Storage: these are lyophilised short peptides and are generally reasonably stable dry and considerably less so in solution. Reconstituting only what will be used within…
Titles that describe the question, not the situation Replied, post #68 · Start Here › How to Ask · 10 Aug 2025 · 20 likes If your question has a deadline — a parcel in transit, a delivery you have to accept or refuse — say so. People answer differently when there is a clock on it. The rule…
Triple agonism: additive, synergistic, or neither? Replied, post #77 · Compounds › Retatrutide · 9 Aug 2025 · 12 likes Two claims get bundled together under triple agonism and they need separating. The descriptive one — this is what was observed — is usually well supported. The causal…
Fatigue in the first month: how much is the drug and how much is intake — what changed… Replied, post #21 · Practice › Side effects · 7 Aug 2025 · 0 likes Right — I had this wrong and I am glad to have read it before it mattered.
Coming back to: Why quantitation is the hard part, not detection Replied, post #47 · Analytics › Home & field testing · 5 Aug 2025 · 0 likes Quantitation: I would want to see the raw numbers rather than the summary before agreeing. Summaries lose exactly the information that would settle this.
What pooling buys you and what it destroys Started this topic · Evidence › Meta-analyses · 3 Aug 2025 · 24 likes The question in the title: What pooling buys you and what it destroys I will give what I have already checked below so nobody repeats it. The question about pooling…
Holding a dose indefinitely: is there a documented downside? Replied, post #33 · Practice › Dosing & titration · 3 Aug 2025 · 8 likes Post #31 describes the usual case. This is about the unusual one. Going back down a step is not a failure and the trials allowed it. Several protocols permitted a…
A ten-fold dose error caught before injection — one year on Replied, post #12 · Devices › Syringes & needles · 1 Aug 2025 · 23 likes Barrel size determines resolution and nothing else. A 0.3 mL barrel and a 1 mL barrel deliver the same volume equally well; the smaller one lets you see what you are…
Are there stupid questions here? A staff answer, at length Replied, post #26 · Start Here › Welcome · 30 Jul 2025 · 6 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…
Foaming during reconstitution and whether it matters Replied, post #21 · Practice › Reconstitution · 28 Jul 2025 · 0 likes Building on post #18 rather than restating it. Marking my uncertainty on foaming during reconstitution explicitly. I am confident about the direction, much less…
Are there stupid questions here? A staff answer, at length Replied, post #17 · Start Here › Welcome · 27 Jul 2025 · 2 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…
Persistent vomiting and the threshold for seeking help Replied, post #9 · Safety › Adverse events · 23 Jul 2025 · 25 likes This is the sort of exchange that makes the archive worth searching.
Detection wavelength and why 214 nm and 280 nm disagree Replied, post #22 · Analytics › HPLC & UHPLC · 22 Jul 2025 · 10 likes No notes. Posting so the count is not one.
Airline travel with a temperature-sensitive injectable — what changed since Replied, post #52 · Devices › Cold chain · 19 Jul 2025 · 0 likes Agreed on Airline travel, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not,…
Triple agonism: additive, synergistic, or neither? Replied, post #68 · Compounds › Retatrutide · 16 Jul 2025 · 3 likes Narrowing post #67, because the general version has more than one answer. Practical experience of triple agonism, offered as one case with the conditions stated, not as…
Coming back to: When "no data" is the complete and final answer Replied, post #46 · Compounds › Other compounds · 15 Jul 2025 · 0 likes This follows post #43 rather than contradicting it. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical literature, which puts it in…
BPC-157: what the rodent literature actually shows, and what it does not Replied, post #14 · Compounds › Repair & healing peptides · 30 Jun 2025 · 21 likes Post #10 and I disagree about the size of the effect, not about the direction. Oral versus injected administration claims for BPC-157: the preclinical work studied…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly Replied, post #120 · Compounds › Tirzepatide · 26 Jun 2025 · 11 likes Adding the measurement that post #119 says would settle it. Tirzepatide's half-life of roughly five days means steady state is approached in about three weeks rather…
Follow-up: Tracking intake honestly when appetite is absent Replied, post #87 · Nutrition & Training › Protein & intake · 14 Jun 2025 · 30 likes I had written a reply contradicting post #83 and deleted it. Here is what survived. I read the earlier replies on Tracking intake twice before writing this, because I…
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #44 · Compounds › Cagrilintide & amylin analogues · 8 Jun 2025 · 8 likes That is a cleaner way of putting what I was circling around.
Why fasting instructions for oral semaglutide are not optional advice — does this still… Replied, post #42 · Compounds › Oral incretins · 4 Jun 2025 · 29 likes I had written a reply contradicting post #40 and deleted it. Here is what survived. Orforglipron is a small molecule, not a peptide. That changes almost everything: no…
Journal club: SURMOUNT-1, read without the press release Replied, post #127 · Evidence › Journal club · 30 May 2025 · 4 likes Two claims get bundled together under SURMOUNT-1 and they need separating. The descriptive one — this is what was observed — is usually well supported. The causal one —…
Why we hide unevidenced fraud accusations and log the hiding Replied, post #103 · Sourcing › Red flags · 29 May 2025 · 32 likes The guidelines draw that line for a practical reason as much as a fair one: reports accumulate into something useful and allegations do not.
A friction point in the promotion workflow — the long version Replied, post #5 · Meta › Site feedback · 28 May 2025 · 3 likes That is the distinction I keep failing to hold on to. Written down now.
Validating a calculator against hand arithmetic — what changed since Replied, post #88 · Data & Tools › Calculators · 24 May 2025 · 4 likes That is a fair summary of where the discussion has got to.
When to stop reading forums, including this one — the long version Replied, post #25 · Wellbeing › Mental health · 20 May 2025 · 24 likes Motivation and expectation: starting with clear motivation and realistic expectations about what will happen and when helps with psychological adjustment. Adding it…
Pregnancy as an absolute contraindication Replied, post #99 · Safety › Contraindications · 20 May 2025 · 0 likes Medullary thyroid carcinoma (personal or family history) or multiple endocrine neoplasia type 2: absolute contraindication. The rodent preclinical signal is real enough…
Revisiting: Why a compound being unapproved is not the same as being illegal to possess Replied, post #5 · Sourcing › Regulatory · 14 May 2025 · 32 likes Careful with the language on compound being unapproved. "Not detected" and "not present" are different findings and the first is a statement about the method.
Residual solvents and scavengers: what is looked for Replied, post #23 · Analytics › Impurities & related substances · 13 May 2025 · 18 likes Reading rather than contributing, but this is the most useful thread I have found on it.
Second pass at: Retatrutide mass and identity: what a report should show Replied, post #41 · Compounds › Retatrutide · 12 May 2025 · 5 likes Mass and identity: a report on retatrutide should state the mass detected by LC-MS, not assume a theoretical mass. The theoretical mass is not published in…
A well-designed study with a badly written abstract Replied, post #42 · Evidence › Study critique · 24 Apr 2025 · 0 likes I had written a reply contradicting post #38 and deleted it. Here is what survived. Building consensus on which criticisms matter: if everyone agrees that the sample…
[2026 update] What the GIP component of tirzepatide is thought to contribute, and how… Replied, post #41 · Compounds › Tirzepatide · 18 Apr 2025 · 0 likes Grateful for the specificity. Vague answers to this question are what sent me looking.
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Started this topic · Evidence › Journal club · 16 Apr 2025 · 0 likes Asking directly, because I could not find a straight answer: Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Working notes on STEP 1…
[2026 update] Cardiovascular risk: reading the outcome trials as a set Replied, post #17 · Clinical › Comorbidities · 13 Apr 2025 · 0 likes Gastrointestinal conditions interact with a mechanism that slows gastric emptying in ways that are plausible and largely unstudied.
Second pass at: A history of disordered eating: proceeding carefully Replied, post #33 · Wellbeing › Mental health · 13 Apr 2025 · 8 likes Where a member is finding this hard, the useful reply is usually a question rather than an answer, and this subcategory does that well. Someone should write this up…
Revisiting: Filter needles: when they help and what they cost you Replied, post #11 · Devices › Syringes & needles · 8 Apr 2025 · 2 likes Gauge is the outside diameter and higher numbers are thinner. Thinner needles hurt less and draw more slowly, which is the entire trade.
One lot is one lot: when a report becomes a pattern — the long version Started this topic · Sourcing › Vendor reports · 14 Mar 2025 · 20 likes One lot is one lot: when a report becomes a pattern — the long version — setting out what I have, and where I think it stops being reliable. Structured report rather…
Pharmaceutical compounding rules, summarised from primary sources Replied, post #109 · Sourcing › Regulatory · 4 Mar 2025 · 0 likes Taking post #106 at face value and following it one step further. What would change my mind on pharmaceutical compounding rules is a second dataset collected by someone…
Escalating every six weeks instead of four: what I observed over eight months — one year… Replied, post #10 · Practice › Dosing & titration · 21 Feb 2025 · 1 like Worth separating two things that post #8 runs together. The maximum studied dose is a fact about the trial and not a ceiling on the molecule. It is also the last point…
Review: a draft on reconstitution arithmetic, with objections Replied, post #16 · Documentation › Doc review · 9 Feb 2025 · 26 likes Coming back to post #12, because the follow-up matters more than the original answer. Agreed on draft on reconstitution arithmetic, with one qualification that I think…
Research-use-only status: what it means legally and practically — a second dataset Replied, post #77 · Compounds › Other compounds · 30 Jan 2025 · 2 likes That is clearer than the version I had in my head. Thank you.
What a seizure notice actually says Replied, post #25 · Sourcing › Logistics · 18 Jan 2025 · 13 likes Peak periods and public holidays affect this more than any other factor and are entirely predictable in advance. I would not lead a decision with this, but I would not…
[2026 update] New subcategory: rationale and scope Replied, post #155 · Meta › Announcements · 16 Jan 2025 · 11 likes My position on New subcategory is current rather than settled. I have revised it once already and I expect to again, so treat it accordingly.
SURPASS-2 and the comparator dose question that will not go away Replied, post #92 · Compounds › Tirzepatide · 30 Dec 2024 · 31 likes Answering the question post #91 raises rather than the one it answers. Having read the whole SURPASS-2 thread before replying: the question in the first post has not…
Reporting a good result: why nobody bothers and why they should — one year on Replied, post #17 · Sourcing › Vendor reports · 27 Dec 2024 · 15 likes Coming back to post #13, because the follow-up matters more than the original answer. Genuine question rather than a rhetorical one: has anyone here actually observed…
UK access routes, dated and sourced — a second dataset Replied, post #20 · Regional › UK & Ireland · 27 Dec 2024 · 5 likes Where a member reports a decision, the useful detail is the stated reason rather than the outcome, because the reason is what generalises. This is the sort of thing the…
[2026 update] How to read a forest plot, properly, from scratch Replied, post #29 · Evidence › Trials · 11 Dec 2024 · 0 likes Risk of bias: structured appraisal of internal validity. Key things to assess: randomisation method (was it truly random or could someone predict the next assignment),…
Journal club: SURMOUNT-1, read without the press release Replied, post #24 · Evidence › Journal club · 7 Dec 2024 · 1 like Picking up post #21: that is the part I would want checked first. Assigning the statistics to somebody who will read the analysis plan rather than the results section…
Two sessions a week versus four: what the evidence supports Replied, post #25 · Nutrition & Training › Resistance training · 6 Dec 2024 · 0 likes Reduced appetite makes fuelling a session harder, and that is a practical problem with practical solutions rather than a reason to stop. That is the honest state of it…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #129 · Analytics › COA interpretation · 25 Nov 2024 · 0 likes Confirming post #126 from a second method, which matters more than confirming it from a second person. Adding a reference point for field-by-field walk through a…
Type 1 diabetes: off-label use and the evidence gap — what changed since Replied, post #56 · Clinical › Special populations · 24 Nov 2024 · 0 likes I had written a reply contradicting post #54 and deleted it. Here is what survived. The absence of a reported signal in a population that was barely enrolled is not…
Reading a preclinical wound-healing model and its relevance to a human tendon Replied, post #91 · Compounds › Repair & healing peptides · 19 Nov 2024 · 29 likes The preclinical work is genuinely interesting and it is preclinical. A rodent tendon model is a model of a rodent tendon, and the translation record from that kind of…
TB-500 and thymosin beta-4: the fragment versus the protein — does this still hold? Replied, post #5 · Compounds › Repair & healing peptides · 19 Nov 2024 · 14 likes Post #4 is the version of this I will quote in future. One addition. TB-500 is usually the 7-residue actin-binding fragment of thymosin beta-4, not the full 43-residue…
Why I ask for the gradient before I discuss the number Replied, post #34 · Analytics › HPLC & UHPLC · 8 Nov 2024 · 8 likes A relative retention time against a known peak travels much better than an absolute one, and almost nobody reports it.
Time to steady state after a dose increase Replied, post #163 · Pharmacology › Pharmacokinetics · 6 Nov 2024 · 16 likes That reframing is the whole thing. The facts I already had.
Requesting a page: what makes a good request — what changed since Replied, post #133 · Documentation › Wiki requests · 13 Oct 2024 · 14 likes Taking post #130 at face value and following it one step further. Scope creep: if you think a page is attempting too much and should be split into multiple pages, that…
Why pulsatile secretion matters for interpreting secretagogue claims — a second dataset Replied, post #13 · Compounds › Secretagogues & GH axis · 30 Sep 2024 · 12 likes Practical note on pulsatile secretion: write down what you expect before you look. The number of times I have found what I went looking for is higher than chance would…
Merging two pages that cover the same ground — the long version Replied, post #6 · Documentation › Wiki requests · 25 Sep 2024 · 0 likes Useful. I have added it to my own notes with the date on it.
Revisiting: How to bring a laboratory report to an appointment usefully Replied, post #47 · Clinical › Bloodwork · 22 Sep 2024 · 3 likes Time of day: some biomarkers vary across the day. Cortisol in the morning differs from cortisol in the evening. Comparing results from different times of day is…
Progressive overload when the scale is falling — one year on Replied, post #64 · Nutrition & Training › Resistance training · 17 Sep 2024 · 0 likes Speaking only to Progressive overload as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread suggests,…
Second pass at: Sodium, potassium and magnesium when intake drops Replied, post #90 · Nutrition & Training › Hydration & electrolytes · 12 Sep 2024 · 7 likes Symptoms attributed to electrolytes here are non-specific and overlap with dehydration, low intake and poor sleep. Attribution from symptoms alone is unreliable.…
Correlation in a self-tracked dataset: what it can support Replied, post #38 · Research Methods › Statistics · 21 Aug 2024 · 3 likes An observation about correlation that I cannot explain and am posting anyway, on the principle that unexplained observations are more useful public than private.
The C-cell question: rodent findings and their human context — what changed since Replied, post #7 · Compounds › Semaglutide · 14 Aug 2024 · 0 likes On the "does it stop working" question: tolerance in the pharmacological sense is not what the withdrawal trials show. What they show is that the effect persists while…
Coming back to: Purity assay versus content assay: two different numbers Replied, post #48 · Analytics › COA interpretation · 12 Aug 2024 · 9 likes Endotoxin testing is separate: a certificate of purity says nothing about endotoxin. A chemically pure preparation can carry a clinically significant endotoxin load. If…
Oral contraceptives and delayed emptying: what the data shows Replied, post #20 · Practice › Interactions · 9 Jul 2024 · 10 likes A definition problem is doing most of the work in this oral contraceptives and delayed emptying discussion. Once the term is pinned down I suspect the disagreement…
Taste changes and food aversion, reported and discussed Started this topic · Practice › Side effects · 4 Jul 2024 · 0 likes Posting this under the heading it deserves: Taste changes and food aversion, reported and discussed Everything below is what sits behind that. The question about taste…
How this community labels and discusses unrefereed work Replied, post #20 · Evidence › Preprints · 15 Jun 2024 · 27 likes Post #17 is right about the mechanism and I think understates the practical bit. A preprint with the data and code attached is frequently more checkable than a…
Follow-up: Where the four-week escalation interval comes from, and what it is not Replied, post #8 · Practice › Dosing & titration · 2 Jun 2024 · 0 likes The confident answers on four-week escalation interval and the well-sourced answers are not the same answers, which is the most useful thing I have learned reading this…