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 a2 antagonist
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| Author | Topic: a2 antagonist | ||
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Amateur Bodybuilder 
Posts: 116 |
WHAT IS AN A2 Antagonist? How do you know if you have developed estrogen related fat stores? I have never taken anti-estrogens, and i have used a lot of sostenon. Is this why i accumulated stubborn fat on waist and chess? Just wondering.     | ||
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Cool Novice 
Posts: 30 |
bump to this. | ||
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Cool Novice
Posts: 41 |
Good question. | ||
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Amateur Bodybuilder
Posts: 91 |
the only a2 blocker that i know of is Yohimbine. a2 receptors are located on the lower stomach and legs mostly. blocking them increase epi and norepinephrine at the receptor sites locally. usually need about 15 mg of yohimbine to make a difference. | ||
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Elite Bodybuilder 
Posts: 658 |
The nerve endings have A-2 receptors which act as auto-regulators. When ephedrine or other norepi releasers cause the release of norepinephrine in the synapse (space between two or more nerve endings), some of the norepi binds to A2 receptors and causes the nerve to reduce the release of norepi. Lower levels of norepi in this region allows for less fatty acid mobilization from local fat depots. A2 antagonists, such as yohimbine, bind to the A2 receptor, but do not impart a signal to the cellular machinary, thus allowing for higher levels of norepi to be released from the nerve. Estrogen has been shown to increase the concentration of A2 receptors in the lower body region. So, cycles containing aromatizable steroids, without the use of anti-estrogens, could increase the storage of fat in the lower body region. | ||
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Amateur Bodybuilder
Posts: 116 |
thanks for the detailed answers.. i am not sure i fully understand but i will research more. I was wondering about the fat deposits caused by such aromitizing steriods in anti-estrogen free environment. Is this fat able to respond to siet and excersize or not? Kind of like gyno? |
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posted March 22, 2001 10:13 PM