MESO-Rx Exclusive Trenbolone facts - series on unique characteristics of different steroids

Just to update: The quality of the PDF's is quite poor since they are scans of old paper documents from the 1980's and 90s. As such I can't get OCR to do shit to pick them up properly. When I run it the resultant doc looks like gibberish when I try to then translate it. Sounds like Forrest Gump on acid if you were to try to actually read it.

This being said, there is much more advanced OCR software out there these days than shitty Abobe illustrator that I have on my cloud for work. So I may explore some additional options.
It’s a good idea and the tech WILL get there, just hasn’t yet!
 
I swear proviron (mesterolone) really helps counter a lot of the negatives of tren

There's also a lot of studies and literature supporting mesterolone's effects on mood. Kind of reminds me of an oral masteron with somewhat different effects
 
I swear proviron (mesterolone) really helps counter a lot of the negatives of tren

There's also a lot of studies and literature supporting mesterolone's effects on mood. Kind of reminds me of an oral masteron with somewhat different effects
It’s true that mesterolone is associated with enhanced mood, energy, and well-being, and this is associated with DHEA. Proviron seems to shunt the Δ⁵ pathway of T synthesis, increasing DHEA supply from [adrenal] DHEA pool for T synthesis.

The only downside is that if you do get this effect from Proviron, you basically don't want to come off of it again because of the withdrawal syndrome.
 
It’s true that mesterolone is associated with enhanced mood, energy, and well-being, and this is associated with DHEA. Proviron seems to shunt the Δ⁵ pathway of T synthesis, increasing DHEA supply from [adrenal] DHEA pool for T synthesis.

The only downside is that if you do get this effect from Proviron, you basically don't want to come off of it again because of the withdrawal syndrome.

I guess there's a mixed bag of studies on Proviron and mental wellness. No effect compared to placebo in this study, although some reviews vaguely suggest improved outcomes. Ref2 and Ref3.
 
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I guess there's a mixed bag of studies on Proviron. No effect on mental wellness compared to placebo in this study.
I've read all the studies including having translated some from German. It's not reliable in its effects on mood, wellbeing, and energy, and the notion of using it as an antidepressant is laughable. Some individuals, seemingly not represented fairly in some nomothetic data (characterized by small sample sizes), definitely see a robust and powerful enhanced mood, likely rooted in their individual metabolism via the endogenous Δ⁴ & Δ⁵ steroidal pathways, levels of neurosteroids like AD, DHEA, etc. Basically, when it comes to using mesterolone for libido or mood, it's a crapshoot. Usually, testosterone is better.
 
Hey Guys/Gals, I don't know if this is the place to put this. But I made this slide with ChatGPT's help. I don't know how much of it is accurate or how much of it is pure hallucinations of a language model.

I'm trying to understand on a slightly deeper level the properties of trenbolone.

Maybe someone who knows what they are talking about can have a look at it for me. I don't have the relevant scientific or medical training unfortunately.
 

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Hey Guys/Gals, I don't know if this is the place to put this. But I made this slide with ChatGPT's help. I don't know how much of it is accurate or how much of it is pure hallucinations of a language model.

I'm trying to understand on a slightly deeper level the properties of trenbolone.

Maybe someone who knows what they are talking about can have a look at it for me. I don't have the relevant scientific or medical training unfortunately.
Welcome to Meso. Check out the New Member Introduction thread.
 
Hey Guys/Gals, I don't know if this is the place to put this. But I made this slide with ChatGPT's help. I don't know how much of it is accurate or how much of it is pure hallucinations of a language model.

I'm trying to understand on a slightly deeper level the properties of trenbolone.

Maybe someone who knows what they are talking about can have a look at it for me. I don't have the relevant scientific or medical training unfortunately.
ChatGPT can’t give you anything beyond very surface level basics. It’s a chatbot — free.

I don’t doubt the capacity of specialized AI put to the task specifically, but nah
 
ChatGPT can’t give you anything beyond very surface level basics. It’s a chatbot — free.

I don’t doubt the capacity of specialized AI put to the task specifically, but nah
I guess I didn't explain fully. I've watched lots of videos about tren on YouTube and created a mental catalog of the so called special effects. Using ChatGPT I tried to drill down into the reasons for this.

Most of the side effects seem to be due to the cross affinity with the progesterone receptor.

I was particularly interested in the nutrient partitioning effects as well as the thermogenic effects. They are covered in this slide. Not at a super high level but there is talk of double bonds in the A,B,C ring and cross affinity with receptors up regulating other receptors.

If you could have a quick look over it I would appreciate it as you seem to know a lot about the topic.
 
I guess I didn't explain fully. I've watched lots of videos about tren on YouTube and created a mental catalog of the so called special effects. Using ChatGPT I tried to drill down into the reasons for this.

Most of the side effects seem to be due to the cross affinity with the progesterone receptor.

I was particularly interested in the nutrient partitioning effects as well as the thermogenic effects. They are covered in this slide. Not at a super high level but there is talk of double bonds in the A,B,C ring and cross affinity with receptors up regulating other receptors.

If you could have a quick look over it I would appreciate it as you seem to know a lot about the topic.

Sure bro, this will be important for many.

Before we embark on the to-and-fro of the next few messages, I need you to know that: (a) what you're doing is a primordial form of what future work *will* indeed look like, so do practice; and (b) you _are_ right to be paying attention, and learning these tools now for an edge.

But also,

(c) I have historically derided the embrace meets overreliance on these tools, because (d) I myself went to school during a time when we weren't *allowed* to use calculators until calculus, and even then, we'd have inspections in the `APP/PRGM` of our TI graphing calculators for cheating. I believe firmly that the shortcuts that these tools make possible will also risk at least a substantial regression towards a pre-Enlightenment psyche in the medium-term. But, I digress.

So, the problem with ChatGPT in its current form is that it has been fed almost the entirety of the digitized data in existence without anywhere *close* to having commensurate, adequate investments made into even knowing where to *begin* to understand /how/ to robustly assess validity and/or weigh reliability of its own utterances across disciplines with contextually and granularity.

The emphasis by managing software engineers to date has been totally towards developing these AI interfaces' natural language abilities, to smoothly handle queries, and indeed, to exude confidence [never actually weighing their own uncertainty, not to mind, communicating that to us].

I reiterate that these tools have by now been practically fed the entire compendium of human knowledge, from rote sources of course, vis-à-vis digitized medium, *en masse*.

That would be a net benefit but for the fact that even the developers themselves admit openly to failing to understand how LLMs work beyond the basic schema, not to mind, how a prompt is evaluated from input.

I want to now move on to giving an abbreviated analysis of some of the concerns that were raised as I read through these pages.

First, and foremost:

1. There are NO (!) citations given throughout the pages of this document. Not a one!

Therefore, it is impossible to assess the reliability or validity of any conclusions drawn, and so these exist merely as a creative, albeit scintillating, presentation of conclusory remarks replete with 2D chemical molecules formed by a large-language model.

2. You have not even treated us to YOUR actual queries, or prompts.

Besides the opacity of this, that is immediately striking. The fact of the matter is that we the readers have no clue how you actually directed the output of this AI tool.

Which AI tool is it? Start there.

For anyone to be able to weigh the validity of your presentation here, you'll need to painstakingly _cite_ your prompts. I recommend NLM9, the standard.

Of course, even I make some use of AI tools in 2025. I have a whole *lot* of the citations in my own notes of this form, despite only resorting to AI in edge circumstances.

For you, I might suggest such a cite would include something along the lines of:

"Compare the anabolic effects and side effect profiles of SARMs vs trenbolone" prompt. ChatGPT, 22 June version, OpenAI, Aug 1 2024, chat.openai.com/chat.

The rationale for my telling you this is simply that without knowing these, this document is essentially a purely creative endeavor where you have bounced your own preconceived notions off the bot, and generated some slick SVGs. Whether you meant that or not, that's all it _can_ be.

Let's finally discuss those responses to your queries that I found most curious and/or concerning. This impression was not in short supply, but for brevity's sake, let's choose two:

First, take Image 1: Heading: Cabergoline, Prolactin, and the Progesterone Receptor (PR):

Cabergoline:
.... basic facts about the drug as a dopaminergic agent that acts at D2 receptors to inhibit prolactin release

Prolactin and PR activation:
More basic facts about prolactin/progesterone interactions, that I have written about without any AI influence as it relates to bodybuilding here


Probably, in fact, before it existed even in its most primitive form.

... Prolactin and Dopamine Interaction, Dopamine Agonism, Prolactin Lowering by Cabergoline...

But what isn't mentioned even once is the fact that trenbolone does not increase prolactin, but rather decreases it, if anything, albeit with only some significance. The sensitizitation to estrogens, e.g., by trenbolone, are fully documented, and advice given, in the article above that I just hacked together for the benefit of Meso in a couple hours, with citations.

My, second-most concerned, albeit closely ranked and with plenty behind, impressions came from the second attached image here, "Trenbolone's SARM effects at lower dosages 1/2 and 2/2 "(cont.)" that takes up more than its fair share of real estate in this (scintillating! nicely edited) set of slides:

This concern is particularly striking since these two verbose pages truly "strut" between two polarized states, being either:

(a) too narrowly based on a single, discordant, outlier study, or

(b) too broadly based on mere user surmise or conjecture (surely to an extent influenced by subconscious or third-party factors, e.g., Victor Black promulgates this paper), rooted in assumptions that trenbolone's purported SARM-like quality is actually be so.

What post of mine would be complete without at least assessing this study of record, Yarrow, Joshua F., et al. “Tissue Selectivity and Potential Clinical Applications of Trenbolone (17β-Hydroxyestra-4,9,11-Trien-3-One): A Potent Anabolic Steroid with Reduced Androgenic and Estrogenic Activity.” Steroids, vol. 75, no. 6, June 2010, pp. 377–89. DOI.org (Crossref), Redirecting

It's the only study among the literature that suggests that trenbolone, of all the androgens among those to choose, bears any resemblance whatsoever to selective androgen receptor modulator (SARM), those classical qunolinone analogs; aryl propionamide analogs; bicyclic hydantion analogs; tetrahydro-quinoline analogs; characteristic partial agonism and Nad⁺ Hydrolase Sarm1 activity; perhaps some MSTN antagonism - that the product of this AI tool even producing it is something that immediately hazards a closer scrutiny.

This is because in fact trenbolone is a ***most*** potent triene (Δ4,9,11) that so *totally* activates the AR that its action is like a sharpened blade slicing into the receptor. *Tissue*-selectivity, i.e., a result of autocrine/paracrine IGF-I activity in skeletal muscle, is quite apart from AR selectivity, that relates to modes of binding foremost.

On its face, the apparent overreliance, or overpromotion by the user, of this outlier study's conclusory remarks rings an alarm bell of sorts, not the least because it has been recently been so transparently seized upon and bandied about by an aggressive self-promoter in the bodybuilding world named Victor Black.

This kind of presentation, pretty as it is, would be so much more compelling if it was simply a single-page bolstering of the Yarrow study above, written in your own word's, and argued impassionately.

In conclusion, I like the formatting, design, and support the limited application of well-designed prompts to get a hypothesis or initial model for yourself to continue to unravel. But this, standing alone, is, while creative and appealing at first-glance with its models and professional layout, totally devoid of the kernel of fact that, in fact, could have been expressed in a paragraph tops, with some reading and focus on a cognizable point, and backed up by data.
 

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Sure bro, this will be important for many.

Before we embark on the to-and-fro of the next few messages, I need you to know that: (a) what you're doing is a primordial form of what future work *will* indeed look like, so do practice; and (b) you _are_ right to be paying attention, and learning these tools now for an edge.

But also,

(c) I have historically derided the embrace meets overreliance on these tools, because (d) I myself went to school during a time when we weren't *allowed* to use calculators until calculus, and even then, we'd have inspections in the `APP/PRGM` of our TI graphing calculators for cheating. I believe firmly that the shortcuts that these tools make possible will also risk at least a substantial regression towards a pre-Enlightenment psyche in the medium-term. But, I digress.

So, the problem with ChatGPT in its current form is that it has been fed almost the entirety of the digitized data in existence without anywhere *close* to having commensurate, adequate investments made into even knowing where to *begin* to understand /how/ to robustly assess validity and/or weigh reliability of its own utterances across disciplines with contextually and granularity.

The emphasis by managing software engineers to date has been totally towards developing these AI interfaces' natural language abilities, to smoothly handle queries, and indeed, to exude confidence [never actually weighing their own uncertainty, not to mind, communicating that to us].

I reiterate that these tools have by now been practically fed the entire compendium of human knowledge, from rote sources of course, vis-à-vis digitized medium, *en masse*.

That would be a net benefit but for the fact that even the developers themselves admit openly to failing to understand how LLMs work beyond the basic schema, not to mind, how a prompt is evaluated from input.

I want to now move on to giving an abbreviated analysis of some of the concerns that were raised as I read through these pages.

First, and foremost:

1. There are NO (!) citations given throughout the pages of this document. Not a one!

Therefore, it is impossible to assess the reliability or validity of any conclusions drawn, and so these exist merely as a creative, albeit scintillating, presentation of conclusory remarks replete with 2D chemical molecules formed by a large-language model.

2. You have not even treated us to YOUR actual queries, or prompts.

Besides the opacity of this, that is immediately striking. The fact of the matter is that we the readers have no clue how you actually directed the output of this AI tool.

Which AI tool is it? Start there.

For anyone to be able to weigh the validity of your presentation here, you'll need to painstakingly _cite_ your prompts. I recommend NLM9, the standard.

Of course, even I make some use of AI tools in 2025. I have a whole *lot* of the citations in my own notes of this form, despite only resorting to AI in edge circumstances.

For you, I might suggest such a cite would include something along the lines of:

"Compare the anabolic effects and side effect profiles of SARMs vs trenbolone" prompt. ChatGPT, 22 June version, OpenAI, Aug 1 2024, chat.openai.com/chat.

The rationale for my telling you this is simply that without knowing these, this document is essentially a purely creative endeavor where you have bounced your own preconceived notions off the bot, and generated some slick SVGs. Whether you meant that or not, that's all it _can_ be.

Let's finally discuss those responses to your queries that I found most curious and/or concerning. This impression was not in short supply, but for brevity's sake, let's choose two:

First, take Image 1: Heading: Cabergoline, Prolactin, and the Progesterone Receptor (PR):

Cabergoline:
.... basic facts about the drug as a dopaminergic agent that acts at D2 receptors to inhibit prolactin release

Prolactin and PR activation:
More basic facts about prolactin/progesterone interactions, that I have written about without any AI influence as it relates to bodybuilding here


Probably, in fact, before it existed even in its most primitive form.

... Prolactin and Dopamine Interaction, Dopamine Agonism, Prolactin Lowering by Cabergoline...

But what isn't mentioned even once is the fact that trenbolone does not increase prolactin, but rather decreases it, if anything, albeit with only some significance. The sensitizitation to estrogens, e.g., by trenbolone, are fully documented, and advice given, in the article above that I just hacked together for the benefit of Meso in a couple hours, with citations.

My, second-most concerned, albeit closely ranked and with plenty behind, impressions came from the second attached image here, "Trenbolone's SARM effects at lower dosages 1/2 and 2/2 "(cont.)" that takes up more than its fair share of real estate in this (scintillating! nicely edited) set of slides:

This concern is particularly striking since these two verbose pages truly "strut" between two polarized states, being either:

(a) too narrowly based on a single, discordant, outlier study, or

(b) too broadly based on mere user surmise or conjecture (surely to an extent influenced by subconscious or third-party factors, e.g., Victor Black promulgates this paper), rooted in assumptions that trenbolone's purported SARM-like quality is actually be so.

What post of mine would be complete without at least assessing this study of record, Yarrow, Joshua F., et al. “Tissue Selectivity and Potential Clinical Applications of Trenbolone (17β-Hydroxyestra-4,9,11-Trien-3-One): A Potent Anabolic Steroid with Reduced Androgenic and Estrogenic Activity.” Steroids, vol. 75, no. 6, June 2010, pp. 377–89. DOI.org (Crossref), Redirecting

It's the only study among the literature that suggests that trenbolone, of all the androgens among those to choose, bears any resemblance whatsoever to selective androgen receptor modulator (SARM), those classical qunolinone analogs; aryl propionamide analogs; bicyclic hydantion analogs; tetrahydro-quinoline analogs; characteristic partial agonism and Nad⁺ Hydrolase Sarm1 activity; perhaps some MSTN antagonism - that the product of this AI tool even producing it is something that immediately hazards a closer scrutiny.

This is because in fact trenbolone is a ***most*** potent triene (Δ4,9,11) that so *totally* activates the AR that its action is like a sharpened blade slicing into the receptor. *Tissue*-selectivity, i.e., a result of autocrine/paracrine IGF-I activity in skeletal muscle, is quite apart from AR selectivity, that relates to modes of binding foremost.

On its face, the apparent overreliance, or overpromotion by the user, of this outlier study's conclusory remarks rings an alarm bell of sorts, not the least because it has been recently been so transparently seized upon and bandied about by an aggressive self-promoter in the bodybuilding world named Victor Black.

This kind of presentation, pretty as it is, would be so much more compelling if it was simply a single-page bolstering of the Yarrow study above, written in your own word's, and argued impassionately.

In conclusion, I like the formatting, design, and support the limited application of well-designed prompts to get a hypothesis or initial model for yourself to continue to unravel. But this, standing alone, is, while creative and appealing at first-glance with its models and professional layout, totally devoid of the kernel of fact that, in fact, could have been expressed in a paragraph tops, with some reading and focus on a cognizable point, and backed up by data.
Thanks for taking the time to reply. I can see you have put a considerable amount of time in formulating a well thought out response.

I don't want to belong to any school or thought or join any camps. I'm trying to get a basic understanding of how this drug works.

I'll take the time to read through what you have written and the references provided.

As an newcomer to this field it strikes me as quite surprising why this information isn't organised into some kind of wiki or open source project. I lack the education to positively contribute to the field.

I'm trying to navigate this mine field as safely as possible like everyone else.

Thanks again for your response.
 
Thanks for taking the time to reply. I can see you have put a considerable amount of time in formulating a well thought out response.

I don't want to belong to any school or thought or join any camps. I'm trying to get a basic understanding of how this drug works.

I'll take the time to read through what you have written and the references provided.

As an newcomer to this field it strikes me as quite surprising why this information isn't organised into some kind of wiki or open source project. I lack the education to positively contribute to the field.

I'm trying to navigate this mine field as safely as possible like everyone else.

Thanks again for your response.

I look forward to your response! And most definitely to you citations and prompts, as well, assuming that they will be forthcoming. All the fields have these basic standards! Welcome to the thundaaAdome!
 
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