(Moving this to a new thread since it is a different topic)It's true that aromatase inhibitors operating via competitive inhibition can be less effective in the intratesticular environment due to the much higher concentration of testosterone, typically an order of magnitude greater than serum levels. HCG acutely stimulates aromatization in Leydig cells, while also increasing intratesticular testosterone. This combination makes for a source of estradiol that is resistant to inhibition. The overall effect depends on what fraction of total estradiol is created instratesticularly. This reference cites a figure of 20% for typical males. With this figure it would seem as though serum estradiol could still be influenced significantly. However, I can envision individual cases in which hCG use increases the fraction of estradiol created intratesticularly, perhaps significantly. In these instances aromatase inhibitors such as anastrozole might indeed appear to be weak. The outcome would also be undesirable if local estradiol production in areas like the brain is crushed even as serum levels appear to be ok.
I am harping on this as I was doing pretty well on TRT with less than 100mg Testosterone Cypionate once a week plus 250IU HCG twice a week. Strong libido, good erections, etc. At that time, if I took 5mg cialis I could feel the effect for 3 days, so I was using 5mg cialis a week (Friday) to have a very happy weekend...
Everything changed when we decided we wanted a child, then I started taking more HCG (initially 250 IU EOD) and my libido started to fade as well as my response to cialis. I tried Clomid with HCG it was a disaster and I stopped. I recently tried tamoxifen with HCG and it also ended giving me deep depression and erectile dysfunction that didn't respond even to cialis.
Anastrozole with HCG is better for me, but I can't seem to be able to set a dose and stick to it without losing libido over time.
Now I realize that anastrozole can also affect the brain by inhibiting aromatase inside the brain...
I guess it is dose related and more evident when given 1mg per day as for breast cancer.
But I woul like to better correlate Anastrozol to control E2 produced by HCG, with minimal impact or no impact to the brain....
Frontiers | Cognitive Effects of Aromatase and Possible Role in Memory Disorders
Diverse cognitive functions in many vertebrate species are influenced by local conversion of androgens to 17β-estradiol (E2) by aromatase. This enzyme is hig...
www.frontiersin.org