Yohimbine HCl Powder, 3 grams by 1Fast400
Yohimbine HCl Powder, 3 grams by 1Fast400Lowest Price Guaranteed on 1Fast400 Yohimbine HCl Powder, 3 grams with Free Shipping on Orders Over $50! Order Today and save big!Description:Great thanks to Par Deus of Avant Labsfor contributing this description.One of the major contributors to body weight homeostasis in the humanbody is the sympathetic nervous system, the principal components of whichare the catecholamines (epinephrine and norepinephrine) and the andrenergic receptors. There are two types of adrenergic receptors, alpha and beta,as well as subtypes of each — and depending on which are activated, lipolysis(breakdown of fat) can be either stimulated or inhibited. The most well-known adrenoreceptors to bodybuildersare the beta receptors. These can be divided into subtypes 1, 2, and 3– and it is through these receptors that drugs such as the ephedrine/caffeine stack and Clenbuterol exert their effects. While Clenbuterol acts directly on beta 2 receptors, ephedrine exerts its effects indirectly by stimulating the release of norepinephrine (NE), the bodys primary endogenous thermogenic hormone. Unlike Clenbuterol, NE is not selective in its binding. In addition to binding to the beta 2 receptor, it also binds to both alpha receptors, as well as the beta 1 and 3 receptors. It is in regards to its binding tothe alpha 2 receptor that yohimbine comes into play. Norepinephrine and YohimbineAtivation of the alpha 2 receptor inhibits the release of NE. Thus, by binding to this receptor, NE functions as its own negative feedback signal. In other words, it shuts off its own release. Obviously, this is not a good thing for fat loss. This is particularly true at rest (which, unless you are a marathon runner is 95% of your day) — this is because alpha 2 receptors are activated at lower catecholamine levels than are the beta receptors (1). Thus, thermogenesis is basically always turned off. It is the differences in regional distribution of alpha 2 and the betareceptors that is responsible for the gender differences in bodyfat storage(2). Basically, females have a large number of alpha 2 receptors and fewbeta receptors in the gluteofemoral area (hips, thighs, and butt), whilemen have the same problem in the midsection. With exercise or the use ofcompounds such as the ephedrine/caffeine stack, catecholamine levels canbe increased to a point where the alpha 2 induced inhibition of lipolysis is partially overcome (1). However, even then, the alpha 2 receptors ARE still acting to reduce lipolysis. Yohimbine is a selective alpha 2 antagonist(3) and can thus short circuit this feedback loop, maximizing NE levels,thus maximizing fat loss, particularly in these problem areas. Blood Flow A second, more indirect, mechanism by which Yohimbinecan aid lipolysis via the adrenergic system is by increasing peripheralblood flow (4, 5). Adipose tissue is known to have rather poor vascularity.When triglycerides are broken down into free fatty acids and glycerolduring lipolysis, they must also be transported away from the fat cellor they risk being reincorporated into adipose tissue. Beta receptor activation causes vasodilation, thus increasing blood flow, however, it does not increase enough to remove all of the free fatty acids released during lipolysis (6).Alpha 1 and 2 receptor activation, on the other hand, causes a decrease in blood flow (2, 7). Thus, antagonism of the alpha 2 receptor with yohimbine would be expected to increase blood flow, and thus increase the mobilization and disposal of these FFAs, further aiding fat loss. Yohimbine vs. yohimbe Quite a bit of confusion seems to exist about the difference between Yohimbine and yohimbe. Yohimbine is the principal alkaloid from the herb P. yohimbe. However, there are 31 other yohimbane alkaloids that can be present in herbal yohimbe preparations. Some ofthese have different and unknown selectivities and potencies (and thus,effects) at the adrenergic receptors (8, 9) — in addition, these preparationsvary greatly from brand to brand and even from batch to batch, as no standardization for extraction exists. In fact, a recent investigation found that most overthe counter
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