[Mechanism of the change in adipocyte sensitivity to ACTH and adrenaline in spontaneous genetic hypertesion in rats].

As compared to fatty tissue cells of animals with normal pressure, those of SHR rats were found to be characterized by a higher lipolytic response and a larger increase in the cAMP content on exposure to the effect of ACTH. As compared to the controls, adrenalectomized SHR rats had an increased basal cAMP content and an increased lipolytic response of the adipocytes following adrenaline administration. In inhibition of phosphodiesterase in the fatty cells of adrenalectomized rats with normal pressure, the cAMP content grew by 20% as compared to that in SHR rats subjected to the operation. It is suggested that the changes in intracellular distribution of calcium, shown in this model of hypertension, may be the direct cause of the altered sensitivity of the "target" cells to the effect of hormones.