Abstract: | A comparative study was made of the lysosomal glycosidases of the eye tissues (sclera and cornea) and also of bone tissue and cartilage from rabbits. Intraperitoneal injection of thyrocalcitonin (TCT), deoxycorticosterone (DOC), hydrocortisone (HC), and somatotropic hormone (STH) were shown to modify the activity of -galactosidase, -glucosidase, and hyaluronidase and the functional state of the lysosomal membranes in the tissues. HC and STH stabilize, whereas DOC and large doses of TCT labilize the lysosomal membranes. After injection of HC and STH the absolute activity of the enzymes in the tissue homogenates falls, whereas DOC has the opposite action.Helmholtz Research Institute for Eye Diseases, Moscow. N. N Priorov Central Scientific-Research Institute of Traumatology and Orthopedics, Moscow. (Presented by Academicial of the Academy of Medical Sciences of the USSR M. V. Volkov.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 84, No. 7, pp. 38–41, July, 1977. |