Abstract
Authors investigated toxic properties of #diabetogenic derivatives of
8-hydroxyquinoline (8-OX) and of #Diphenyl thiocarbazone (DZ) on the
insulin producing cells of the pancreas and the protective effect of
#Glutathione on its toxic action. The mechanism of action of derivatives
of 8-OX
determined by the ability to form into cells containing zinc-ions a
chelate salts with them 1:1 by sulfur and nitrogen atoms at positions 8
and 1 and
through the oxygen atoms in positions 8 and 2. Diphenyl thiocarbazone
formed #chelates salts with zinc as 2:1, where in zinc coupled to the two
atoms via #Dithizone sulfur and nitrogen atoms. It is shown that the
preventing effect has GRF, containing in structure of SH-radical unlike
GOF, not
containing it. It is found that administration of CRF to animals
1000mg/kg comp- letely protect B-cells of destruction determined by
blocking of zinc
by CRF. Results showed that this effect determined by blocking of zinc
in B-cells by GRF. Authors suggest that atom of Zinc is fixed between
atom of
sulfur of the SH-radical and of atom of oxygen or nitrogen as after
injections of 8-OX or DZ #islet zinc binding too through atom of sulfur
and oxygen.
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