VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

Circadian rhythm of adenosine triphosphatase activity and 32P content in Pliss lymphosarcoma

   
Seitkazina G.D., Vasil'eva G.S., Efimov M.L., Kovalenko V.R.
PubMed Id: 6152086
Year: 1984  Volume: 30  Issue: 6  Pages: 38-40
Within a daily period maximal activity of ATPases and content of 32P in Pliss lymphosarcoma tissue was found in the samples taken at 15 or 21 p.m. and 3 a.m. The radioactivity in the tumor was minimal between 9 and 12 a.m. and 18 or 24 p.m. The alterations in Mg2+-ATPase activity in their magnitude and circadian rhythm coincided completely with the daily variations in content of radiophosphorus. Activities of Na+, K+- and HCO(3-)-ATPases exhibited maximal values at 15 p.m. and, especially between 3 and 6 a.m., i.e. these alterations were of two-peak shape without the peak at 21 p.m.
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Seitkazina, G. D., Vasil'eva, G. S., Efimov, M. L., Kovalenko, V. R. (1984). Circadian rhythm of adenosine triphosphatase activity and 32P content in Pliss lymphosarcoma. Voprosy Meditsinskoi Khimii, 30(6), 38-40.
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