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Protein digestion in early postnatal ontogeny

  • Physiology
  • Published:
Bulletin of Experimental Biology and Medicine Aims and scope

Abstract

Newborn rats aged 3 days, removed from their mothers for 3 h, were given 0.4 ml of a 20% aqueous solution of human albumin by mouth. Pieces of tissue from the proximal jejunum and the renal cortex of the animals were investigated electron-microscopically by Gomori's reaction for acid phosphatase. In early postnatal ontogeny protein is absorbed in the intestine by pinocytosis, after which it is transported into the Golgi complex and discharged into the intercellular space, from which it enters the lymphatic capillaries. The accumulation of electron-dense protein-containing cytosomes, with high acid phosphatase activity, could be seen in the proximal tubules of the kidneys. It is postulated that the kidneys have a proteolytic digestive function in early postnatal ontogeny.

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Authors and Affiliations

  1. Academy of Sciences of the Uzbek SSR, USSR

    K. A. Zufarov

Authors
  1. K. A. Zufarov
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  2. P. I. Tashkodzhaev
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  3. V. M. Gontmakher
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Additional information

Laboratory for Biophysical Problems, Department of Histology, Tashkent Medical Institute. Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 78, No. 11, pp. 12–15, November, 1974.

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Zufarov, K.A., Tashkodzhaev, P.I. & Gontmakher, V.M. Protein digestion in early postnatal ontogeny. Bull Exp Biol Med 78, 1231–1233 (1974). https://doi.org/10.1007/BF00804342

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  • DOI: https://doi.org/10.1007/BF00804342

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