Janoshik Interview

Does that require a cell signal for the entire drive?
Youtube used to allow downloading videos on your phone if you had their premium service. Not sure if that's the case anymore as I haven't paid for YouTube in a long time.

If the interview has been put out as a podcast then most common podcast apps let you download the episode. I download all my podcasts on wifi and can listen to them with no cell service.
 
Great video! I saw it, and it was nice to put a face behind the lab we so often send to for testing. His heart seems to be in the right place too which is always nice! Also was not aware he went through medical school.
 
Most interesting statement in that interview in my opinion is the discovery of how stable peptides are, at least in powder form, after months and years.

You know samples are filtered first, removing the aggregates that are a major indicator of peptide degradation right?

HPLC only detects gross fragmentation or shifts in retention time. Subtle chemical changes, oxidation, deamidation, or epimerization, won’t appear, yet can ruin activity.

That’s why regulations require pharma to pair HPLC with particle analysis, MS and / or bioassays.
 
You know samples are filtered first, removing the aggregates that are a major indicator of peptide degradation right?

HPLC only detects gross fragmentation or shifts in retention time. Subtle chemical changes, oxidation, deamidation, or epimerization, won’t appear, yet can ruin activity.

That’s why regulations require pharma to pair HPLC with particle analysis, MS and / or bioassays.
i work in novo

our qc departments has like 10 hplc-dad machines, 5 UHPLC, 5 HPLC-RI and only 2 GC-MSD machines.

they run everything through filter before testing but its novo man we have CO2 reduced concrete in our buildings to ensure quality. theres no guarantee the china company has filtered so its rather a user should do problem than anyting wrong with janoshik.

its industry standards
 
It would have been interesting to ask during the itw why there is such difference on test report between jano and the other company. I saw recently on aasraw, a result of tren E and like there was a 10% difference on purity (lower of course) with the others. It is not a small gap.
 
You know samples are filtered first, removing the aggregates that are a major indicator of peptide degradation right?
I don't think implying all aggregates and bigger than 0.22 um is anywhere near true.

HPLC only detects gross fragmentation or shifts in retention time. Subtle chemical changes, oxidation, deamidation, or epimerization, won’t appear
This is extreme falsehood.

That’s why regulations require pharma to pair HPLC with particle analysis, MS and / or bioassays.
Could you point me to, for example, somatropin monograph requiring so?
LCMS is basically unheard of in pharmacopeia. Bioassay is used exactly once in qualifying the product and particle analysis is not conducted in any manner other than dimer and aggregate analysis of *filtered* preparation. As far as I can tell.

Thank you.
 
I don't think implying all aggregates and bigger than 0.22 um is anywhere near true.


This is extreme falsehood.


Could you point me to, for example, somatropin monograph requiring so?
LCMS is basically unheard of in pharmacopeia. Bioassay is used exactly once in qualifying the product and particle analysis is not conducted in any manner other than dimer and aggregate analysis of *filtered* preparation. As far as I can tell.

Thank you.
but the interwebz said...

computer nerd GIF by South Park
 
I don't think implying all aggregates and bigger than 0.22 um is anywhere near true.


This is extreme falsehood.


Could you point me to, for example, somatropin monograph requiring so?
LCMS is basically unheard of in pharmacopeia. Bioassay is used exactly once in qualifying the product and particle analysis is not conducted in any manner other than dimer and aggregate analysis of *filtered* preparation. As far as I can tell.

Thank you.
I certainly won't claim to be an expert, but it does look like in the US at least, the monograph does include bioassays for either the bulk or prepared material. It's possible I'm misinterpreting this, as it's just my googling.


 
I certainly won't claim to be an expert, but it does look like in the US at least, the monograph does include bioassays for either the bulk or prepared material. It's possible I'm misinterpreting this, as it's just my googling.


just clicking on the stuff you're linking. its talking about hgh bioassays in vivo? where did you read about hgh requiring bioassays?

it might be true since ghouls ai told him
 
just clicking on the stuff you're linking. its talking about hgh bioassays in vivo? where did you read about hgh requiring bioassays?

it might be true since ghouls ai told him
Those are docs for the somatropin usp monograph, which outline the standards/testing for those standards/etc. required for it.
 
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