keithtran2102
New Member
Maybe that's something to do with your FT:E2, SHBG:E2 or even DHT:E2 ratio I think?
I have similar experience with subq as well, I noticed that my T:E2 and DHT:E2 ratio gets skewed towards in favor of estrogen. I think it is because of local estrase activity. Estrase enzymes are available in other tissues of body not just blood, and it could be that since the depot of testosterone is in fat, the local estrase enzyme would cleave off the ester chain and hence exposing alot of free T to aromtase enzyme in fat cells. Excess conversion of T to E2 and slower release of T from the subq layer both results in higher E2 levels and comparatively lower T levels. This is just a hunch, I might be completely wrong.If I were in this situation with the absurd E2 level after injecting a tiny dose of testosterone subq, the very first experiment I would run is to switch to shallow IM. I would use your same gauge needles, at least 1/2", and go straight into the delts, and then repeat labs in a week.
There has been endless debate around whether it should be possible for subq injections to produce higher E2 levels, and what the mechanism for that could be. Theories aside, it is a fact that there are large numbers of men who've experienced this phenomenon, including many on this forum (myself among them).
If this were the case then you would not expect these opposite results seen in this study. With N=234 it is pretty well-powered. It's even more surprising because you expect lower troughs with IM vs SC. @FunkOdyssey, do you see any confounders in this research?I have similar experience with subq as well, I noticed that my T:E2 and DHT:E2 ratio gets skewed towards in favor of estrogen. I think it is because of local estrase activity. Estrase enzymes are available in other tissues of body not just blood, and it could be that since the depot of testosterone is in fat, the local estrase enzyme would cleave off the ester chain and hence exposing alot of free T to aromtase enzyme in fat cells. Excess conversion of T to E2 and slower release of T from the subq layer both results in higher E2 levels and comparatively lower T levels. This is just a hunch, I might be completely wrong.
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