Effect of HCG on the enzymic activity of toad testes |
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| Authors: | J Russo M H Burgos |
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| Affiliation: | 1. Instituto de Histología, U.N.C. Mendoza, Argentina;2. Embriología Facultad de Ciencias Médicas, U.N.C. Mendoza, Argentina;1. Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, PR China;2. College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China;3. Chuanqing Drilling Engineering Company Limited, Chinese National Petroleum Corporation, Chengdu 610081, PR China;4. Vontron Technology Co., Ltd., Guiyang 550018, PR China;5. College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, PR China;1. Department of Ichthyology, University of Warmia and Mazury, Olsztyn, Poland;2. Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland;3. Department of Aquaculture, Szent Istvan University, Pater Karoly, Godollo, Hungary;4. Department of Aquaculture, The Stanislaw Sakowicz Inland Fisheries Institute, Olsztyn, Poland |
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| Abstract: | HCG affected several enzymatic activities in the toad testis. It produced a depression of the Na+, K+-dependent ATPase and Mg2+-dependent ATPase as well as lower oxygen consumption. Acid phosphatase activity is also depressed by HCG treatment. The depression of the Na+, K+ ATPase is correlated with the increased water and sodium ion uptake by the testes after HCG. The effect of HCG on the Na+, K+ ATPase can be considered as the trigger in the mechanism of spermiation, through inhibition of the sodium pump. The inhibition of the other enzymes studied is discussed. |
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