Good info!Prolactin gyno is directly caused by androgen (DHT) deficiency:
"Although prolactin (PRL) receptors are present in male breast tissue, hyperprolactinemia may lead to gynecomastia through effects on the hypothalamus, causing central hypogonadism'
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3987263/
This says that prolactin gyno is caused by androgen deficiency. Which does what? Increases ER-a signalling because there's not enough DHT to stop it...
You have to remember that 19-nors themselves bind ER-a same as E2 does, so an AI is useless in this regard because it's not E2 that's causing the gyno, it's the 19-nor mimicking E2. So yes, you can lower prolactin with DA-agonists, or you can prevent the rise in prolactin in the first place by treating with DHT. Prolactin follows ER-a activation, and it's likely that the way that 19-nors affect ER-a gene transcription they do so in a manner that upregulates PRL release. Still, at the root of all this is excessive ER-a signalling, which DHT stops.
DA-agonists are not treating the root cause, which is insufficient DHT levels to counter-balance ER-a signalling.
I have explained this at least 5 different times, with citations, and not one person here is seemingly able to grasp this concept. Why?
DHT keeps E2 in check, which is why some guys who run finasteride get gyno even from normal TT and normal E2 levels. Without adequate DHT, ER-a signalling surges, so even normal amounts of E2 can cause gyno in the absence of normal levels of DHT.
It was mentioned elsewhere in another forum too. One reported that 50mg/d winstrol with trest would curb the gyno/prolactin issue. Would make sense, as it is DHT derived.
Please keep up the discussion without name callings. In the end anyone can benefit from the info shared.