Saratov JOURNAL of Medical and Scientific Research

The role of histaminergic system in the effects of skin flap autotransplantation on microcirculation at absolute insulin deficiency

Year: 2020, volume 16 Issue: №2 Pages: 521-525
Heading: Рathophysiology Article type: Original article
Authors: Antipova O.N., Lagutina D.D., Stepanova T.V., Savkina A.A., Kuznetsova N.A., Andronova Т.А., Kiriyazi T.S, Ivanov A.N.
Organization: Saratov Medical University "Reaviz", Saratov State Medical University
Summary:

The objective of the article is to estimate the impact of the histaminergic system in the effects of skin flap autotrans-plantation (SFA) on microcirculation in white rats with alloxan insulin deficiency. Material and Methods: The studies were carried out in 60 white rats, divided into 3 groups: 20 control intact animals, 20 animals with alloxan diabetes — the comparison group, 20 animals with alloxan diabetes and SFA— the experimental group. The mechanisms of blood circulation modulation and perfusion of posterior paw dorsal skin, the concentration of histamine in the blood serum, and morphological changes in the SFAarea were evaluated. Results: The significant increase of skin perfusion on 43%, redistribution of microcirculation modulation active mechanisms and the increase in histamine serum concentration in 2,5 times underthe influence of SFA were observed in rats of the experimental group. Conclusion: The distant stimulating effect of SFA on microcirculation in conditions of absolute insulin deficiency is realized with increasing histamine serum concentration. Moreover, the stimulation of the blood flow regulation active mechanisms by increasing the histamine concentration is not equivalent — the effects on endothelium-dependent and neurogenic regulation mechanisms prevail, and the activation of histamine smooth muscle cell receptors is much less pronounced.

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