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Zinc defficiency

J Li, P Xu, Z He
OBJECTIVE: To study the changes of testis apoptosis in zinc deficient rats will promote the understanding of the molecular mechanism of zinc deficiency in the development and function of testis. METHODS: 16 Wistar rats were divided randomly into zinc control group (ZC) and zinc deficiency group (ZD). The serum and testis zinc contents were measured with atomic absorse method; the apoptosis of spermatogenic cells was studied with in situ nick translation (ISNT) technique...
February 1998: Zhonghua Yi Xue za Zhi [Chinese medical journal]
S L Jewett, S Cushing, F Gillespie, D Smith, S Sparks
The reaction of hydrogen peroxide with the copper-zinc bovine-liver superoxide dismutase at low molar ratios (0.2-20.0) of H2O2/active site between pH 7.3-10.0 leads to the loss of native enzyme as a distinct form monitored by electrophoresis. The pH dependence of the loss of native enzyme between 7.3 and 9.0 indicates the involvement of a conjugate base on the enzyme of pKa of 8.7 +/- 0.1. The rate of loss of the native enzyme is first order with respect to the concentration of both enzyme and hydrogen peroxide between pH 7...
April 1, 1989: European Journal of Biochemistry
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