Coleus Forskohlii and Forskolin Mechanism of action.

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Coleus Forskohlii and Forskolin Mechanism of action.

Coleus Forskohlii Extract CAS 66575-29-9 66428-89-5 photo picture image Forskolin is a diterpene from the roots of the Indian plant Coleus forskohli which directly activates adenylate cyclase and raises cyclic AMP levels in a variety of tissues. Cyclic AMP is an important cell regulating compound. Once formed it activates many other enzymes involved in diverse cellular functions. Under normal situations cAMP is formed when a stimulatory hormone (e.g., epinephrine) binds to a receptor site on the cell membrane and stimulates the activation of adenylate cyclase. This enzyme is incorporated into all cellular membranes and only the specificity of the receptor determines which hormone will activate it in a particular cell. Forskolin appears to bypass this need for direct hormonal activation of adenylate cyclase. As a result of this direct activation of adenylate cyclase, intracellular cAMP levels rise. The physiological and biochemical effects of a raised intracellular cAMP level include: inhibition of platelet activation; inhibition of mast cell degranulation and histamine release; increased force of contraction of heart muscle; relaxation of the arteries and other smooth muscles; increased insulin secretion; and increased thyroid function.

 Forskolin's primary mode of action is to increase cyclic adenosine monophosphate (cAMP) and cAMP-mediated functions, via activation of the enzyme adenylate cyclase. Forskolin has been shown to increase cAMP formation in all eukaryotic cells except sperm, without hormonal activation of adenylate cyclase.Forskolin's potentiation of cAMP in turn inhibits basophil and mast cell degranulation and histamine release, lowers blood pressure and intraocular pressure, inhibits platelet aggregation,promotes vasodilation, bronchodilation, and thyroid hormone secretion, and stimulates lipolysis in fat cells. Forskolin also has a positive inotropic action on cardiac tissue via increased cAMP levels.

 In addition to its cAMP-stimulating activity, forskolin inhibits the binding of platelet-activating factor (PAF), independently of cAMP formation. This may be a result of forskolin's direct effect on PAF or via interference with PAF binding to receptor sites.Forskolin also appears to have an effect on several membrane transport proteins, and inhibits glucose transport in erythrocytes, adipocytes, platelets, and other cells.

 Forskohlin (Coleus forskohlii): Adenylyl cyclase is a target enzyme of multiple G-protein-coupled receptors. Classic adenylyl cyclase inhibitors show an isoform-dependence. Forskolin, a diterpene extract from Coleus forskolii, markedly enhances isoform selectivity via its direct action on adenylyl cyclase to increase the intracellular levels of cyclic AMP. The biochemical mechanism of maintaining or increasing lean body mass is related to the availability of cyclic AMP. By facilitating hormonal action, cyclic AMP may regulate the body's thermogenic response to food, increase the body's metabolic rate and increase utilization of body fat (since thermogenesis is preferentially fueled by fatty acids derived from body fat and/or food). This has found applications for Forskohlin in body fat management via nutraceutical delivery systems. Forskohlin, in combination with HCA, could provide novel nutracosmetic formulations for body fat and body shape management.
 Coleus Forskohlii Extract CAS 66575-29-9 66428-89-5 photo picture image

 How it works:

 The main argument for using it to drop fat is that the active chemical forskolin initiates a cascade of chemical reactions that cause fat cells to basically release their energy and melt away. In more technical terms, what happens is forskolin increases an enzyme called adenylate cyclase, which increases levels of another enzyme called cAMP (cyclic AMP), which is found in fat. cAMP then stimulates another enzyme, hormone sensitive lipase, to burn fat. Additionally, by a similar mechanism using cAMP, coleus increases thyroid hormone production and release, thereby increasing the body's metabolism, to burn more calories.

 Basically, forskolin initiates a similar cascade of chemical reactions as ephedrine. Where coleus differs from ephedrine is ephedrine stimulates adrenergic receptors (which is the primary mechanism for ephedrine, even though this process is not totally accountable for its fat-burning effects) before it reaches cAMP. Unfortunately, many negative side effects can be experienced when some of these adrenergic receptors are stimulated, such as increased blood pressure, anxiety, etc. (This is basically why users of ephedrine-based supplements oftentimes experience unwanted and sometimes dangerous side effects.)

 To the coleus user's advantage, however, coleus bypasses the adrenergic receptors and goes straight into the cAMP cycle, which is the next step in the ephedrine fat-burning process and subsequently also bypasses all of the potential unwanted, adverse effects associated with ephedrine. Simply stated, this is like having the option of two journeys driving to work: both will get you to the identical spot, and both will take the same amount of time, but one route (coleus) is a calm country drive with no traffic, whereas the other route (ephedrine) is a busy high-speed motorway with perils and hazards with every lane change... we know which route we prefer!

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Reference:

citations1.Coleus Forskohlii and Forskolin Mechanism of action.

last edit date:20th,June.2009.