Wrangel7
Member
I made a thread to respond to these comments and continue discussion without excessively polluting this thread.
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Adverse Neurocognitive Effects of Supraphysiological GH from Non-Pharmaceutical RhGH + Filtration Discussion
To avoid polluting the original thread, I am opening this one for discussion of the issue above (both in this N=1 case and as a broader topic). I aim to update this thread when I am sharper and have more data with newer replies.
Episodes of very dense brain fog + underlying brain fog virtually 24 hours a day.
Word retrieval issues.
Headaches for as much as 50% of the day for the past few weeks and maybe for 20% of the day for more than a month.
Memory gaps from even as recently as few minutes ago (short term and long term).
Pressure headache and disorientation, some confusion, some minor motor coordination issues from the start of this week, which is when I would begin to distinguish this as a more acute episode of impairment. Much greater intensity of headache and much greater prevalence of aphasia (specifically in word production/selection, rather than hearing).
Possibly mediated via rhGH IH. Many other possible explanations. Getting MRI+MRV tomorrow.
~8-9 IU resting days.
~14 IU or below training days (~14 iu is highest it has been this period; usually closer to resting day range).
I don't think my trt-level AAS exposure is causing this (~140mg/wk test p).
If curious about the rhGH dose and low AAS dose, I am not a bodybuilder, but I am focusing on arm-wrestling where collagen synthesis and tendon stiffness, strength play a massive role (many aspects of the sport are quite isometric).
I ran much, much higher doses of rhGH last year without this sort of episode.
Filtration:
Amyloid formation of growth hormone in presence of zinc: Relevance to its storage in secretory granules
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Amyloid formation of growth hormone in presence of zinc: Relevance to its storage in secretory granules - Scientific Reports
Amyloids are cross-β-sheet fibrillar aggregates, associated with various human diseases and native functions such as protein/peptide hormone storage inside secretory granules of neuroendocrine cells. In the current study, using amyloid detecting agents, we show that growth hormone (GH) could be...doi.org
@Ghoul also brought up an article title where he cropped out the fact that it was about c‑hGH (cadaver-derived) (not rhGH). RhGH is a very different product.
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Amyloid-β ‘seeds’ in old vials of growth hormone
A therapy used until 1985 causes amyloid-β accumulation in mice brains.doi.org
The point may be to illustrate how hGH products can carry exogenous amyloid seeds, when injected driving amyloid deposition. Despite the c-hGH example, @Ghoul may be considering that rhGH itself may significantly form amyloid-like fibrils in UGL contexts (as shown by the Zinc paper) and these fibrils could behave as seed-competent material.
Now there is a question of whether these hGH fibrils from the vial survive and reach the brain in a meaningful manner for this context after say SC or IM injection.
There is some evidence supporting the idea that BBB is impaired in neuroPASC, and with the prevalence of that, I think that's something which should be considered, even if we are all being quite conjectural at this point.
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Blood–brain barrier disruption and sustained systemic inflammation in individuals with long COVID-associated cognitive impairment - Nature Neuroscience
Long COVID is a major public health issue since 2020 and exhibits frequent neurological symptoms. Greene et al. propose that brain fog results from leaky brain blood vessels and a hyperactive immune system, shedding light on this phenomenon.doi.org
So, regarding rhGH fibrils specifically, I think we are lacking evidence that the injection of this non-pharmaceutical product leads to amyloid-mediated brain diseases, especially not as quickly as in this case here. However, we do have precedent of peripheral or iatrogenic misfolded proteins seeding various brain pathologies; concern + filtration may be appropriate.
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Transmission of amyloid-β protein pathology from cadaveric pituitary growth hormone - Nature
Archived vials of cadaveric human growth hormone contain substantial levels of amyloid-β (Aβ) peptides and can seed Aβ plaques in susceptible mice, suggesting that this material could have transmitted Aβ pathology to humans.doi.org
Filters for anyone reading, since we are on the topic of filtration, I believe these may align with @Ghoul's criteria/recommendations:
Peptides & Proteins:
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Sterile 0.2 μm PES Syringe Filters
Hydrophilic PES syringe filters with single or double-layer membrane. Pore sizes of 0.2μm. Diameter of 13mm/25mm/33mm with Luer lock. Sterile individually packed.shop.cobetter.com
AAS oils (technically marked as a gas filter @Ghoul):
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Syringe Vent Filters Hydrophobic PTFE Autoclavable
Autoclavable hydrophobic PTFE syringe filters. Pore size: 0.2 μm. Diameter of 13mm/25mm/33mm with Luer lock. For venting and air filtration.shop.cobetter.com
Sterile depyrogenated vials:
5cc vials:
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Ultra Spec Sterile 5ml (20mm neck) Clear Sealed Glass Vial, Qty 1
5ml clear sealed sterile glass vials (Silver seal, single). Shop at Med Lab SUpply for high quality medical and lab glass!www.medical-and-lab-supplies.com
10cc vials:
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Ultra Spec 10ML Clear Sealed Sterile Glass Vials, Qty 1
Ultra Spec Sterile Clear Sealed Glass Vials - 10ML (20mm Neck) made of SCHOTT FIOLAX® glass tubing. In order to receive vials in sealed shrink wrap boxes, please order in multiples of 25.www.medical-and-lab-supplies.com
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-What kind of neurological effects?
-What is your dosage and what else are you on, and if the answer is any AAS I would be looking there first
-GH itself has cognitive impact, as there are GH receptors on the brain. So if you're dosing heavily, could be the excess GH itself - in any case, it most likely has absolutely zero to do with the purity.
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“Come on man, rHGH aggregates into amorphous blobs, not the fibrils needed to become neurodegenerating amyloid plaque…..”
That was true until this recent discovery:
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Luckily we can be certain those shitty Chinese vials would never contain trace amounts of zinc contaminants:
Because that would make fibrils form
“Dude, I’ve never seen ‘strings’ in my GH!”
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Ok, but there’s no proof those can become “amyloid” :
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One, this isn’t something they would be “felt”
immediately. Two, there is no evidence an exogenously formed fibril would actually make it into the bloodstream, then cross the blood brain barrier, and then have the same impact as one that forms within the body.
That said there’s plenty of reasons to filter and reduce all risks.
(Also, it is hilarious that people spent months arguing about cagri fibrils in peptide circles and now all of those people are jumping on GH and not talking about this at all.)

