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The effect of complete fasting on the structural-functional organization of the white pulp of the spleen

Kuziv, O.I.

Fiziolohichnyi Zhurnal 43(1-2): 89-100

1997

ISSN/ISBN: 2522-9028
PMID: 9221125
Document Number: 473469
The work presents the results of morphologic, electron microscopic and morphometric assessment of the liver in white mongrel rats in the dynamics of complete long fasting. The investigations reveal that 7 days complete fasting in animals is accompanied by a certain dynamics of structural-functional reconstruction in various zones of splenic white pulp. The periarterial area shows microlymphocytes number decrease (T-dependent zone). However, B-dependent area of splenic white pulp experiences more significant reducing lymphocytes. Via electron microscopic observation pit-cells ultrastructure (the tissue form of large containing granules lymphocytes possessing a natural killing activity) has been ascertained. It is of note that in the dynamics of complete fasting there occurs remarkable increasing a relative pit-cells quantity, these pit-cells containing osmophilic macrogranules, proving their sharp functional activity rise. Complete long fasting demonstrates sufficient immunosuppressive effect with simultaneous enhancing nonspecific resistance of the organism due to a greater amount of natural killers and ascending their functional activity.

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