V I Chernaia

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The dependence of the cathepsin B1 (EC activity on pH of a medium with substrates N alpha-benzoyl-L-arginine amide (BAA) and N alpha-benzoyl-DL-arginine-paranitroanilide (BAPNA) was studied. Several maxima of the studied enzyme activity are established depending on pH in the grey and white matter of the cat cerebral hemispheres. The activity of(More)
  • V I Chernaia
  • Ukraïnsʹkyĭ biokhimichnyĭ z︠h︡urnal
  • 2001
The effect of the total single and chronic roentgen irradiation in the dose of 0.25 Gy on the rats to alteration dynamics in lysosomal cysteine cathepsin L [CE] level in different brain regions (cortex, cerebellum, middle brain, varolian, hippocampus, striatum) was studied as a result of 1, 12, 24, 120 and 168 hours of exposure. The data obtained(More)
The development of neurochemical investigations at the Institute of Biochemistry of the National Academy of Sciences of Ukraine initiated by Academician A. V. Palladin, has impelled specialists in some regions of the country to start research in this trend. The Department of Biophysics and Biochemistry of Dniepropetrovsk State University founded and headed(More)
The human brain cathepsin H is shown to be a specific cysteine aminopeptidase with the optimum activity at pH 6.0. Human brain tumours of neuroectodermal (astrocytomas and glioblastomas) and epithelial (meningiomas) origin were used to study the cathepsin H activity in the malignant brain tissue. A significant increase in the aminopeptidase cathepsin H(More)
Cysteine cathepsin L was isolated and purified 1242-fold from human brain. Cathepsin L pH-optimum, Vmax, K(m), lysosomal origin and thiol nature were determined. The distribution of cathepsin L activity in human brain tumours of different histological structure, histogenesis and degree of malignization was studied. The activity of cathepsin L in most the(More)
The influence of X-radiation on activity of lysosomal enzymes (D, L, H cathepsins) in rat spleen tissue and in inoculated rat sarcoma 45 has been investigated. Intact rats and rats with tumors were subjected to whole-body and sarcoma 45 to local irradiation with doses of 0.155 C/kg and 0.31 C/kg in conditions of breathing gas hypoxic mixture containing 90%(More)
Thiol-activated cathepsin was isolated from bovine cerebral hemispheres and cerebellum. The enzyme from the hemispheres was purified by the affinity sorbent chromatography method with the sepharose-4B-immobilized protein substrate, azocasein, and with subsequent separation of nonspecifically sorbed protein by column gel-chromatography on Sephadex G-100. The(More)
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