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Biomedical subjects

E D Klimenko

Publications and source records attributed to E D Klimenko.

At least 19 recordsLinked to original sources
PubMed2006

[Cell therapy as a method to correct pathogenetic disturbances in dyslipidemia and early atherosclerosis].

The article is dedicated to the pathogenetic mechanisms of the development of immune inflammation in the vascular wall, as well as hepatic functional disregulation in dislipidemia and atherosclerosis. The authors emphasize that the decompensation of the process of cell regeneration in actively functioning organs (vascular endothelium, hepatocytes) and a concomitant immune disregulation become the main factors of the progression of dislipidemia and atherosclerosis. The authors consider the conditions for and factors of cell therapy, based on the use of allogenic fetal hepatic cells and autological bone marrow cells.

Animals↗
PubMed2003

Dyslipidogenic microangiopathy in guinea pigs at early stages of atherogenesis.

We studied the effect of dyslipidemia on lipid metabolism, state of microcirculatory system, and morphological alterations in the aorta and liver of guinea pigs at the early stages of experimental atherogenesis. The important role of microcirculatory disorders in the development of regional pathology and atherosclerosis is confirmed. The proposed alimentary model can be used in the development of novel methods for prevention and treatment of atherosclerosis.

Animals↗
PubMed2003

Influence of perftoran on structural and metabolic disturbances in the liver during experimental atherosclerosis.

We evaluated whether perftoran can be used for the correction of structural and metabolic changes in the liver during alimentary atherosclerosis. Perftoran in a dose of 0.3 g/kg normalized the contents of phosphatidylserine, phosphatidic acid, and phosphatidylcholine in the plasma membranes of liver cells in rabbits feeding an atherogenic diet for 2 months. Architectonics of hepatic trabeculae returned to normal, the degree of granular and vacuolar degeneration in hepatocytes decreased, and phagocytic activity of macrophages increased. Individual peculiarities of the effect of perftoran on structural and metabolic changes in the liver were revealed.

Animals↗
PubMed2001

Interrelation between different stages of atherogenesis in rabbits with high and low resistance to dyslipidemia.

Changes in lipid metabolism and morphofunctional state of neuroregulatory and circulatory systems during dyslipidemia were studied in rabbits with high and low resistance to this risk factor. It was found that impairment of neuroregulatory systems plays an important role in initiation and progression of microcirculatory disorders and atherosclerosis. Atherogenic index is the most informative parameter for evaluation of pathological changes in the vascular system during dyslipidemia.

Animals↗
PubMed1993

[Synthetic antioxidant correction for disorders of the regulatory and microcirculatory systems in the early stages of experimental atherosclerosis].

The influence of synthetic antioxidants (AOs) on hypothalamo-hypophyseal neuro-secretory system (HHNS), sympatho-adrenal system and microcirculatory bad in early stages of atherogenesis in rabbits (Anichkov's model) was studied. Correction of lipid metabolism and lipid peroxidation (LP) activation by AOs was accompanied by disappearing of structural changes in regulatory and microcirculatory systems, regression of atheromatosis in great arteries. Stabilization effect of AOs on neurons and erythrocytes membrane structures was noticed. Some distinctions in mechanism of action between mexidol and fenbutol were found. Thus, regulatory and microcirculatory disturbances, which appear on early atherogenesis stages and is the basis of chronic noninfectious pathology in different target-organs is reversible, for example trough LP correction.

Adrenal Glands↗
PubMed1992

[The role of dyslipoproteinemia in the genesis of chronic hepatitis].

The dynamics of structural changes in the liver in experimental dyslipoproteinemia (DLP) and its correction was studied. Vessel-tissue changes found in the liver of rabbits in a short-term and stable DLP (4, 8 weeks) can be estimated as different stages of chronic active hepatitis. The microcirculation disorders and structural changes in the liver appeared at the early stages of DLP in the absence of atheromatosis in large arteries. The pathological changes in the liver existed 36 weeks after the rejection of atherogenic diet and correlated with DLP. Thus, DLP can be the risk factor as cardiovascular diseases as chronic nonspecific changes in the target organs.

Animals↗
PubMed1990

[The effect of a 3-hydroxypyridine-class antioxidant on disorders of the microcirculatory system in experimental dyslipoproteinemia and its alimentary correction].

The effect of antioxidant (AO) of the 3-hydroxypyridin class on microcirculatory system (MC) disorders of rabbits with dyslipoproteinemia (DLP) and its alimentary correction (the standard ration--9 months) was studied. Aorta, the intestinal mesentery microcirculatory bed, the microvessels adrenergic innervation, erythrocyte morphology were examined. The various lipoprotein fractions and lipid peroxidation (LP) products were studied in venous blood. After AO including into atherogenic diet (ATD) the lipid homeostasis disorders, the LP activation, MC disturbances, anomalous erythrocyte form appearance and atherosclerosis changes in aorta were less pronounced. Under the AO influence when DLP was corrected the initial level of lipid metabolism and LP restored, the MC disorders and the atherosclerosis changes in aorta regressed in a shorter period of time. The interrelation was observed between the DLP level, the structural and functional MC disorders and the extent of aorta atherosclerosis. Thus, DLP and LP correction at the early stages of pathological process can lead to the disappearance of MC disorders, what seems important for the prevention of atherosclerosis. The role of the LP activation in MC disorders in DLP and mexidol effect on them, especially in complex with DLP correction were evaluated.

Animals↗
PubMed1988

[Function of the microcirculatory system during the long-term regression of the early stages of atherogenesis].

Lipid metabolism, intestinal mesentery microcirculatory bed (MCB) and erythrocyte (E) morphology in arterial and venous blood were studied in rabbits with experimental atherosclerosis (the model of N. N. Anichkov) and its spontaneous regression. The interrelation was determined between lipid metabolism (LM), MCB structural and functional disorders and anomalous E form appearance, and to a lesser extent the atheromatosis of the aorta. Microcirculatory (MC) disorders disappeared 12 months later in the regression of the early stages of atherogenesis (after 2 months of diet). The generalized character of MC disorders in LM suggests the existence of a trend towards MC reconstitution in prolonged regression in different organs and tissues. Thus, LM correction at the early stages of the pathological process can be accompanied by the disappearance of MC disorders, which seems important for the prevention of atherosclerosis.

Animals↗
PubMed1986

[Compensatory and adaptive changes in the small intestine and liver of rabbits after short-term cholesterol diet].

Functional and morphological changes in the intestinal wall and liver were studied in rabbits on short-term cholesterol diet. It was established that with a rapid increase of cholesterol concentration in the general blood flow, the synthesis of high density lipoproteins in the intestinal wall was intensified. Enhanced hepatic elimination of cholesterol and chylomicrons from blood circulation contributes to cholesterol level stabilization in peripheral blood. With high density lipoprotein accumulation in the intestinal wall, cholesterol consumption did not change its concentration in the general blood flow. Structural changes in jejunal and liver mucosa were shown to depend on the degree of hypercholesterolemia and functional damage of these organs.

Adaptation, Physiological↗
PubMed1985

[Structural changes in the pulmonary vessels and parenchyma in experimental hypercholesterolemia and atherosclerosis].

Light and electron microscopy were employed to study the microcirculatory bed (MCB), intraorganic vessels and lung tissue in rabbits in the first hours (1, 3, 6, 15, 24 and 48 h) after a single administration of cholesterol (ChS) and in the course of the development of experimental atherosclerosis. The MCB demonstrated changes such as dilatation of the venular part, arteriolar constriction, red cell aggregation in capillaries and venules, and stases. At the early stages of experimental atherosclerosis induced by the diet the permeability of the air-blood barrier and the synthesis of lung surfactant were found to be deranged. Vessel-tissue changes in the lungs progressed with an increase in the length of the diet (1-8 months) and were alike the picture seen in chronic nonspecific lung diseases, particularly in what is called senile emphysema. A relationship was established between the degree of changes in the MCB and HCh gravity. Atherosclerotic lesions in the intraorganic arteries occur and progress parallel with the development of this process in the intramural arteries of the myocardium. The data obtained attest to an important role of lipid metabolism disorders in the development of lung pathology and may have a certain significance in specifying the pathogenesis of chronic nonspecific lung diseases, especially.

Animals↗
PubMed1985

[Interrelation of the changes in the blood rheological properties and the microcirculatory disorders in the early and late stages of experimental hyperlipoproteinemia].

Experiments were made on rabbit fed an atherogenic diet (0.5 g/kg cholesterol) singly for 15 and 24 h and repeatedly for 3, 9 and 30 days. At early stages of lipid metabolism distress the interrelationship was established between blood rheological disorders and microcirculatory abnormalities. The dependence of the initial reaction of some rheological characteristics on their initial level was marked.

Animals↗
PubMed1983

[Functional and structural changes in the small intestine during experimental hypercholesteremia].

Functional and structural changes that occurred in the small intestine and liver of rabbits with alimentary hypercholesterolemia have been studied. Maximal rise of peripheral blood cholesterol after a single exposure to cholesterol was coupled with an increased penetration of chylomicrons and low and very low density lipoproteins from the intestine to the circulation. The decrease of cholesterol excretion along the whole length of the small intestine was accompanied by activation of the release of high density lipoproteins into the blood outflowing from the intestine. The decay of chylomicrons in the liver was restricted during the first days of hypercholesterolemia. Cholesterol concentration in the bile was decreased. The microvessels of the small intestine demonstrated the dilatation of the postcapillary-venular component erythrocyte aggregates and capillarostases.

Animals↗