{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T15:22:50Z","timestamp":1778685770365,"version":"3.51.4"},"reference-count":41,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1993,1,1]],"date-time":"1993-01-01T00:00:00Z","timestamp":725846400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Cereb Blood Flow Metab"],"published-print":{"date-parts":[[1993,1]]},"abstract":"<jats:p>\n                    Brain creatine kinase (CK)-catalyzed phosphorus flux from phosphocreatine (PC) to ATP was measured in vivo in young adult mice made reversibly hypoxic by injection of cyanide. Phosphorus spectra and saturation transfer measurements of CK-catalyzed flux were acquired using a high-field (8.45 T) nuclear magnetic resonance (NMR) spectrometer. After low cyanide doses (1\u20133 mg\/kg of body weight), there were no measurable changes in brain pH or in concentrations of PC, the nucleoside triphosphates (including ATP), and P\n                    <jats:sub>i<\/jats:sub>\n                    , The CK-catalyzed phosphorus flux increased about 75% after the low cyanide dose. Higher doses (4\u20136 mg\/kg) produced a transient 30\u201340% decrease in PC concentration, doubling of P\n                    <jats:sub>i<\/jats:sub>\n                    , and a 0.2 unit decrease in pH. The CK-catalyzed phosphorus flux decreased 50\u201380% after the higher cyanide doses. This decrease in phosphorus flux was present long after reactant concentrations returned to precyanide values. It is proposed that the increase in brain CK-catalyzed phosphorus flux with the lower cyanide doses is due to an increase in ADP concentration. The large, prolonged decrease in CK-catalyzed reaction rate in the moderately poisoned brain may be due to loss of activity of the mitochondrial CK isoform.\n                  <\/jats:p>","DOI":"10.1038\/jcbfm.1993.18","type":"journal-article","created":{"date-parts":[[2011,4,8]],"date-time":"2011-04-08T13:15:12Z","timestamp":1302268512000},"page":"153-161","source":"Crossref","is-referenced-by-count":15,"title":["Creatine Kinase-Catalyzed Reaction Rate in the Cyanide-Poisoned Mouse Brain"],"prefix":"10.1177","volume":"13","author":[{"given":"David","family":"Holtzman","sequence":"first","affiliation":[{"name":"Department of Neurology, Harvard Medical School, The Children's Hospital, Boston"},{"name":"Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Offutt","sequence":"additional","affiliation":[{"name":"Department of Nuclear 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