[The bilateral autonomy of enzyme secretion by human salivary glands].

Saliva secreted by right and left parotid glands was collected using Leshley-Krasnogosky's capsules. Salivary secretion and aminolytic activity were found to be higher on the chewing side than on the contralateral. Bilateral differences in salivary gland secretion of alkaline and acid phosphatases and pepsinogen were less expressed. Salivary secretion in right-handed and left-handed subjects and in patients with hemiplegias after brain stroke was studied by citric acid stimulation. Bilateral asymmetry of enzymic secretion was revealed, particularly marked in the patients: not only the volume of salivary production and enzyme debit, but salivary enzymic activity on the side of motor paralysis were lower than on intact side. Bilateral functional asymmetry of secretion was more manifest for amylase than for other enzymes whose origin is largely influenced by recretion process.