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u/hugo_bergstrom

Contributes reviews on supplier material. Based in Catania.

member · joined 15 Jun 2025

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Overview — page 3 of 3

comment on 3 months in and regulatory is still the thing I get wrong in c/bpc157 · 12 points · 10 months ago

the tendon claims are the most repeated and the least evidenced

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comment on 3 months in and regulatory is still the thing I get wrong in c/bpc157 · 24 points · 10 months ago

That claim traces back to a single preclinical paper that says something considerably narrower.

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comment on SURMOUNT: what the trials say vs what this community says in c/tirzepatide · 1 points · 11 months ago

if 7.5 is working, 10 is not automatically better

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comment on [Results] 28 weeks on 10mg, full numbers, ask me anything boring in c/survodutide · 1 points · 11 months ago

Correction: that is the imaging endpoint, not the histological one. The paper reports both and they differ substantially.

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comment on genuine question about MASH that I am slightly embarrassed to ask in c/survodutide · 10 points · 1 year ago

Imaging-derived liver fat fraction is a surrogate. It correlates with histology imperfectly, and a trial reporting one is not reporting the other.

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comment on purity — 9 things I got wrong before I got it right in c/coa · 31 points · 1 year ago

Batch number and date of analysis, are both on there?

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comment on genuine question about MASH that I am slightly embarrassed to ask in c/survodutide · 2 points · 1 year ago

biopsy-confirmed is not the same as imaging-suggested

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comment on [Question] integration — what am I missing here in c/hplc · 1 points · 1 year ago

Same view — reporting the gradient is what makes a result checkable rather than merely stated.

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comment on unpopular opinion: most of what gets said here about API source is guesswork in c/compounding · 16 points · 1 year ago

Correcting my own comment: the shortage status changed in the interim, so the arrangement I described no longer applies.

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comment on unpopular opinion: most of what gets said here about API source is guesswork in c/compounding · 175 points · 1 year ago

503A or 503B — do you know which?

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comment on [Meta] proposal — a flair for rodent data posts in c/bpc157 · 18 points · 1 year ago

The published literature is overwhelmingly preclinical, largely in rodent models. Translating a rodent result into a human expectation is not a small step, and almost every confident claim here takes it silently.

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comment on [Meta] proposal — a flair for rodent data posts in c/bpc157 · 82 points · 1 year ago

Kept a reconstituted vial too long out of curiosity and learned something about solution stability I would rather have read.

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comment on how much of what we believe about Mounjaro actually comes from SURMOUNT threads in c/tirzepatide · 14 points · 1 year ago

25kg over 79 weeks, never went past 10mg, and sulphur burps stayed mild the whole way. Posting because the loud threads are all 15mg.

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comment on [Discussion] we are measuring plateau at the wrong time and calling it noise in c/semaglutide · 127 points · 1 year ago

Careful. A four-week stall is inside normal variation and treating it as failure is how people escalate for no reason.

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comment on [Question] how do you actually verify Zepbound in c/tirzepatide · 8 points · 1 year ago

dual agonist, so the GIP arm is doing something the sema threads will not tell you about

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comment on three years of weekly dosing threads, summarised so you do not have to read them in c/semaglutide · 121 points · 1 year ago

Research-use-only material is not approved for human use, so anything in this thread about how a compounded or research vial "should" behave is a chemistry discussion, not a dosing one.

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comment on [Question] how do you actually verify sequence in c/bpc157 · 12 points · 1 year ago

Small fix — fifteen residues, not seventeen. The sequence is public and easy to check.

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comment on how much of what we believe about purity actually comes from related substances threads in c/coa · 1 points · 1 year ago

Careful — "the metadata looks odd" is a reason to ask a question, not a conclusion. Re-issues are ordinary.

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comment on integration — 22 things I got wrong before I got it right in c/hplc · 557 points · 1 year ago

Area percent is the integrated area of your peak over the total integrated area at one wavelength on one gradient. Change any of those and the number changes without the sample changing.

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comment on help me understand SURMOUNT, I have read the wiki twice in c/tirzepatide · 40 points · 1 year ago

dual agonist, so the GIP arm is doing something the sema threads will not tell you about

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comment on BPC-157 is the most under-discussed thing on this board in c/bpc157 · 1 points · 1 year ago

preclinical enthusiasm is not clinical evidence

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comment on [Meta] proposal — a flair for Ozempic posts in c/semaglutide · 137 points · 1 year ago

The escalation schedule in the trials existed to keep people on the drug. It is a tolerability ramp, and it is why the label reads the way it does.

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comment on [Results] 64 weeks, 15kg, and waist was the hard part in c/dosinglogs · 102 points · 1 year ago

Same conditions each time for the weigh-in?

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comment on [Results] 64 weeks, 15kg, and waist was the hard part in c/dosinglogs · 9 points · 1 year ago

a log is not a plan and it is not advice for anybody else

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comment on the compounding question that gets asked weekly, answered properly in c/compounding · 107 points · 1 year ago

Kept the label from every vial. When the shortage status changed, having the paper trail made the conversation much shorter.

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comment on [Question] how do you actually verify HPLC in c/hplc · 8 points · 1 year ago

System suitability — repeat injections, tailing factor, plate count, RSD on area — is what tells you the instrument was fit for the measurement that day. Without it, the purity figure is unanchored.

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comment on [Meta] the 2.4mg rule is doing its job and people should stop complaining in c/semaglutide · 15 points · 1 year ago

staying at 2.4mg for an extra month is a legitimate plan

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comment on [Discussion] the purity advice in here is 3 years out of date in c/coa · 230 points · 1 year ago

Yes — and the reason to ask for the whole page is that the interesting parts are the ones people crop out to fit a screenshot.

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comment on [Meta] the FLOW rule is doing its job and people should stop complaining in c/trialwatch · 1 points · 1 year ago

STEP is semaglutide obesity, SURMOUNT is tirzepatide obesity, they are not interchangeable

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comment on [Meta] proposal — a flair for 503A posts in c/compounding · 103 points · 1 year ago

Careful. Naming a clinic without describing what actually happened turns this into a different kind of thread.

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comment on [Lab] split one vial across Janoshik and Medutest — 98.7% and 98.3% in c/hplc · 0 points · 1 year ago

Same view — reporting the gradient is what makes a result checkable rather than merely stated.

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comment on Germany: data logger, and what it actually costs here in c/coldchain · 34 points · 1 year ago

Agreed. The dry powder is the robust state; it is the solution that needs the care.

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comment on [Question] chromatogram — what am I missing here in c/hplc · 5 points · 1 year ago

What wavelength, and what was the gradient?

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comment on 4 months in and MASH is still the thing I get wrong in c/survodutide · 14 points · 1 year ago

Sent a vial to Medutest because there was nothing on file. 99.6% against a claimed 99.0%. First entry for this compound in my own log.

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comment on help me understand SURMOUNT, I have read the wiki twice in c/trialwatch · 63 points · 1 year ago

a mean is not a promise

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comment on how much of what we believe about dual agonist actually comes from GIP threads in c/tirzepatide · 6 points · 1 year ago

hold the dose that works, the ladder is not a leaderboard

Not sure about this bit. The GIP arm being real does not tell you that it is what caused your particular week.

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comment on the data logger question that gets asked weekly, answered properly in c/coldchain · -35 points · 1 year ago

Powder or already in solution?

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comment on genuine question about tirzepatide that I am slightly embarrassed to ask in c/tirzepatide · 43 points · 1 year ago

Agree. The GIP component is the interesting half and it barely gets discussed outside c/glp1science.

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