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Biomedical subjects

G G Khechinashvili

Publications and source records attributed to G G Khechinashvili.

18 recordsLinked to original sources

[Blood plasma lipoextraction as a method of lipid removal from atherosclerotic lesions of the aorta in rabbits].

The effect of repeated lipoextraction of their own blood plasma on regression of the atherosclerotic process was studied in rabbits with experimental hypercholesterolemia 2 months after they had been fed cholesterol. The blood plasma cholesterol level at the end of the experiment was lower in the experimental animals than in the controls, whereas the results of morphological examination of the aortic areas involved in atherosclerosis showed that repeated removal of lipids from the blood plasma promotes rapid regression of experimental atherosclerosis in the experimental animals.

Animals↗

[Triglyceride, total cholesterol and lipoprotein fraction cholesterol levels in the blood plasma of elderly and long-lived persons in the Abkhazian SSSR].

The results of examination of 21 males and 30 females of the category of elderly and long-lived persons (81--106 years old) indicate the low content in the blood plasma of total cholesterol (173 mg/100 ml), beta-lipoprotein cholesterol (106 mg/100 ml), pre-beta-lipoprotein cholesterol (18 mg/100 ml), and triglycerides (91 mg/100 ml). The average content of these lipid complexes was lower in males than in females. The low concentration of beta- and pre-beta-lipoprotein cholesterol and the large portion of alpha-lipoprotein cholesterol content in relation to the content of total cholesterol in blood plasma are evidence of a favourable proportion of atherogenous and non-atherogenous classes of lipoproteins in blood plasma of elderly and long-lived persons, which is evidently one of the causes of the lower incidence of ischemic heart disease among them and their high longevity.

Aged↗

[Lipid extraction from blood plasma and the subsequent administration of the autologous delipidized plasma as a possible agent for treating atherosclerosis (an experimental study)].

A method for the delipidization of blood plasma of rabbits and dogs with diethyl ether with its subsequent reinfusion into the animal's body is described. Triglycerides and cholesterol were mainly extracted from blood plasma, and only 1/3 of phospholipids. In dog experiments the plasma delipidization procedures led to a decrease of the cholesterol content in the overall fraction of atherogenic lipoproteins of low and very low density and an increase of the cholesterol content in antiatherogenic lipoproteins of high density. The lipoextraction procedures are harmless and may be employed for reducing the blood lipid level.

Animals↗

[Effect of chronic stimulation of rats with intact and deafferented hypothalamuses on lipid metabolism and the adrenal cortex].

Chronic irritation of the falsely operated rats and those with the deafferentated hypothalamus led to reduction of total blood cholesterol and the accumulation of triglycerides in the liver. Dexamethasone administration was accompanied by an increase of blood cholesterol and triglycerides and the triglyceride accumulation in the liver. The action of dexamethasone was more pronounced in the animals with the deafferentated hypothalamus. The rate of 11-oxycorticosteroid secretion into the adrenal vein is reduced in the latter.

11-Hydroxycorticosteroids↗

[Effect of ethirazol and parmidine ofn the development of experimental atherosclerosis in rabbits].

Experiments on rabbits which received cholesterol in food for 3-4 months showed an inhibitory effect of ethirazol (bis-methylamide-1-ethyl-pyrazol-3,4-bicarbonic acid) and parmidine (piridinolcarbamate, 2,6-bis-hydroxymethylpiridine bis-n-methylcarbamate) on the development of experimental atherosclerosis: there proved to be a reduction of accumulation of total cholesterol in the aorta and of its atherosclerotic affection. At the same time the blood serum cholesterol, triglycerids and phospholipid content was not significantly changed by these drugs.

Animals↗

[Hypolipidemic activity of substances structurally close to penphenone in rats and mice].

Effect of substances, structurally related to penphenone (2-phenyl-3-methyl-3-hydroxypentanic acid sodium salt), was studied on the main patterns of lipid metabolism in blood of rats and mice, as well as on lipoprotein spectra of rat blood serum. All the compounds studied exhibited hypolipidemic effect, decreasing concentration of total cholesterol, cholesterol of alpha-lipoproteins and triglycerides in rat blood. The effect was less distinct in mice. 2-phenyl-3,4-dimethyl-3-hydroxypentanic acid sodium salt possessed the most pronounced hypolipidemic effect. A decrease in content of beta-and pre-beta-lipoproteins as well as of alpha-lipoproteins was observed after electrophoretic separation of blood serum lipoproteins in polyacrylamide gel in animals treated with the compound.

Animals↗