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Incorporation of Adenosine and Adenosine Triphosphate into Rat Myocardium

Name: Incorporation of Adenosine and Adenosine Triphosphate into Rat Myocardium
Keywords: Carbon Isotopes, Adenosine Triphosphate, Myocardium, Animals, Phosphorus Isotopes, Nucleosides, In Vitro Techniques, Rats

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1969 English Publisher:International Heart Journal (Japanese Heart Journal)Journal:Japanese Heart Journal, volume 10, pages 47-52 (issn: 0021-4868, eissn: 1348-673X,

Authors: Eizou Hattori; Motoomi Nakamura; Tadashi Miyazaki;

doi: 10.1536/ihj.10.47

pmid: 5305454

Incorporation of Adenosine and Adenosine Triphosphate into Rat Myocardium

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Abstract

The isolated rat heart is perfused with adenosine-8-C14, or a mixture of ATP-8-C14 and ATP-γ-P32 of known isotope (C14/P32) ratio. The results indicate that any difference between the rate of incorporation of adenosine-C14 or ATP-C14 into myocardial nucleosides and nucleotides fraction did not show significance, and also that any difference of the C14 distribution in the perfusates between adenosine-C14 and ATP-C14 perfused by the isolated rat hearts did not show singnificance.When perfused with C14-and P32-ATP of known isotope ratio, ATP isolated from the myocardium showed an isotope ratio (C14/P32) approximately 5 times greater than that of ATP in perfusion fluid.These results suggest that ATP might be first degraded and later resynthesized intracellularly.

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Kyushu University
Japan

Keywords

Carbon Isotopes, Adenosine Triphosphate, Myocardium, Animals, Phosphorus Isotopes, Nucleosides, In Vitro Techniques, Rats

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