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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2001; 47(5): 18-25


Effect of k+-channel openers on morphofunctionallysosomes state under acute hypoxic hypoxia

О.A. Gonchar, K.V. Rozova, M.M. Seredenko

    A.A.Bogomoletz Institute of Physiology, NAS,Kiev;V.P.Komissarenko Institute of Endocrinology,AMS, Kiev


Abstract

Here we summarises the results of experimental inve- stigation of changes in intracellular calcium homeo- stasis in sensory neurones of rats with streptozotocin - induced diabetes mellitus. Decrease in the calcium- accumulating function of both inositol-trisphospha- te- as well as caffeine-sensitive endoplasmic reticulum has been detected both in primary sensory neurones of dorsal root ganglia and in secondary neurones of the spinal cord dorsal horn. Predominant depression in the functioning of metabotropic receptors of li- gand-gated channels compared with those of iono- tropic ones has been demonstrated. Changes in the pharmacological sensitivity of potential-operated cal- cium channels (predominantly of L-type), linked, probably, with alterations of functional connections between membrane channels and endoplasmic reti- culum, are described. A predominant role of changes in the functioning of intracellular Ca2+-accumulating structures, leading to prolongation of depolarisation- induced Ca2+ transients in primary and secondary sensory neurones and corresponding changes in the transmission of nociceptive signals during diabetic neuropathy are discussed.

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