Publications by authors named "T Y Kvitnitskaya-Ryzhova"

Background: Aging is associated with the slowing down of metabolic processes, diminished physiological processes, changes in hormonal activity and increasing exposure to oxidative stress factors and chronic inflammation. The endocannabinoid system (ECS) is a major signaling network that plays a pro-homeostatic role in the central and peripheral organs of the human body. A class of minor lipids, N-acylethanolamines (NAEs), which do not activate cannabinoid receptors, except for anandamide, but can potentiate the action of endocannabinoids and have a wide spectrum of biological activity and significant adaptogenic potential, belongs to ECS.

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Objective: The aim: To determine the set of structural and functional changes in pancreatic islets (PI) of obesity-induced insulin resistant (IR) rats of different age (young and old) fed with prolonged (6 month) high-fat diet (HFD) (58% of fat) and further treatment with N-Stearoylethanolamine (NSE), a bioactive N-Acylethanolamine.

Patients And Methods: Materials and methods: Alimentary obesity-induced IR model in rats of two age groups was used to investigate the influence of age and NSE treatment on pancreas morphology (using histological, histochemical and immunohistochemical techniques) and on several biochemical parameters associated with DM onset.

Results: Results: The NSE administration normalized pancreas morphology which was more affected in the old IR group; the signs of inflammation, edema, fibrosis and steatosis were somehow diminished and PI area became significantly increased.

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Objective: Introduction: Understanding of HSV-1liver infection pathogenesis is of great scientific, social and economic significance, since this is one of the main latent infections in population. However reactivation of this infection remains understudied. The aim: This experimental research aimed at studying the ultrastructure changes occurring in the liver in the presence of HSV-1infection.

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Aim Of The Study: to study the efficiency of gene therapy following traumatic brain injury (TBI) by evaluating the influences of liposomal transfection of the brain tissue by APOE3-containing plasmid vector on the structural and functional manifestations of development of secondary brain injuries after acute experimental TBI in the rats of different age.

Material And Methods: Severe diffuse TBI in rats was inflicted under overall anesthesia by free load weighing 450 g, falling from a 1.5 m elevation.

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Based on the authors' own data and a review of current literature, the role of vasopressin (VP) in the mechanisms of age-related changes, development of stress-reactions and pathology onset is discussed. In aging, the VP concentration in blood and cerebrospinal fluid increased, its level in pituitary rose and that in hypothalamus fell. Under stress (emotional-painful stress, water deprivation) the potential capabilities of the VP-ergic system decreased with age.

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