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Distribution of a morphogenic peptide activating the head growth of hydra in rat organs following intravascular administration of3H-labeled peptide

  • Biophysics and Biochemistry
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Bulletin of Experimental Biology and Medicine Aims and scope

Abstract

The organ distribution of radioactivity following intravascular bolus injection of3H-Lys-head growth activator in rats was studied. Two minutes after injection the renal level of radioactivity exceeded the blood level 7-fold; 80% of the total activity was bound with the blood cell membranes. An analysis of chemical derivatives of the labeled peptide in the plasma by means of reverse-phase high-performance liquid chromatography revealed the presence of several groups of radioactive metabolites with different hydrophilic properties. High-performance liquid chromatography of blood extracts obtained from samples taken 0.5, 1, 1.5, 2, 31, and 60 min after injection showed the transformation of initially hydrophobic head growth activator into more hydrophilic fragments. The3H-Lys-head growth activator-associated radioactivity could be reliably detected in the blood onl during the first two minutes after injection. The half-period of blood-to-organ distribution of3H-labeled head growth activator lasted less than 30 seconds.

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Authors and Affiliations

  1. Cardiology Research Center, Russian Academy of Medical Sciences, Moscow

    E. I. Kalenikova, V. A. Tishchenko, A. Yu. Rubina, A. S. Sokolov, Yu. A. Blidchenko, T. V. Kuznetsova & Zh. D. Bespalova

  2. Department of Basic Medicine, M. V. Lomonosov State University, Moscow

    E. I. Kalenikova, V. A. Tishchenko, A. Yu. Rubina, A. S. Sokolov, Yu. A. Blidchenko, T. V. Kuznetsova & Zh. D. Bespalova

Authors
  1. E. I. Kalenikova
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  2. V. A. Tishchenko
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  3. A. Yu. Rubina
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  4. A. S. Sokolov
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  5. Yu. A. Blidchenko
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  6. T. V. Kuznetsova
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  7. Zh. D. Bespalova
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Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 118, No 11, pp. 466–469, November, 1994

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Kalenikova, E.I., Tishchenko, V.A., Rubina, A.Y. et al. Distribution of a morphogenic peptide activating the head growth of hydra in rat organs following intravascular administration of3H-labeled peptide. Bull Exp Biol Med 118, 1162–1165 (1994). https://doi.org/10.1007/BF02444613

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  • DOI: https://doi.org/10.1007/BF02444613

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