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Carbonic anhydrase of human endometrium biochemical and clinical aspects

, : Carbonic anhydrase of human endometrium biochemical and clinical aspects. Indian Journal of Biochemistry and Biophysics 15(3): 222-226

Carbonic anhydrase activities of human endometrium and erythrocytes were assayed under conditions of normal and uterine dysfunctions. The 2 enzyme activities resemble each other in respect of hormonal regulation. The isozyme pattern of carbonic anhydrase greatly differs at various physiological phases, and, at progesterone-dominant phase, a new tissue-specific band appears which produces a large change in kinetic properties leading to variations in Km values without affecting Vmax. In vitro treatment of tissue slices with estrogen and progesterone produces antagonistic effect as regards enzyme activity is concerned. But kinetically estrogen changes Km without affecting Vmax, whereas progesterone changes Vmax without affecting Km.


PMID: 107115

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