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Forskolin appears to bypass this need for direct hormonal activation of adenylate cyclase via transmembrane activation. As a result of this activation of adenylate cyclase intracellular cAMP levels rise.* The physiological and biochemical effects of a raised intracellular cAMP level include: healthy of platelet cirulation; increased force of contraction of heart muscle; relaxation of the arteries and other smooth muscles; healthy insulin secretion; optimal thyroid function; and increased lipolysis (fat destruction).* Recent studies suggest that forskolin possesses additional mechanisms of action independent of its ability to directly stimulate adenylate cyclase and cAMP dependent physiological responses.* Specifically forskolin inhibits a number of membrane transport proteins and channel proteins through a mechanism that does not involve the production of cAMP.* The result is again a transmembrane signaling that results in activation of other cellular enzymes.*