[Adrenergic and cholinergic regulation of respiratory efficiency of secretory cells]. / Adrenerhichni ta kholinerhichni mekhanizmy rehuliatsii efektyvnosti dykhannia sekretornykh klityn.

The influence of sympathetic and parasympathetic systems on the secretory cell respiration is mediated at the subcellular level by adreno- and cholinoreceptors of plasmatic membranes and is related to selective oxidation of two different substrates of the Krebs cycle: succinate and alpha-ketoglutarate, both being involved into two reciprocal mediator-hormonal-substrate-nucleotide systems: catecholamines-succinate-cAMP-ATP and acetylcholint-alpha-ketoglutarate-cGMP-GTP. The reciprocation of these systems is necessary for regulation of cell oxygen demand and effective oxygen utilization for ATP-synthesis and synthesis of other macroergical compounds depending on the functional state of a cell.