The Structure and Mechanical Properties of the UHMWPE Films Modified by the Mixture of Graphene Nanoplates with Polyaniline.

Highly oriented UHMWPE films were reinforced with functionalized graphene nanoplates (GNP). GNP was functionalized by deposition of polyaniline (PANI) on the GNP surface. The structure of GNP/PANI was studied by Raman spectroscopy, and the structure of xerogels and films based on UHMWPE was studied by DSC and SEM.

Features of Lipoperoxidation, Antioxidant Defense, and Thiol/Disulfide System in the Pathogenesis of Infertility in Males, Carriers of Nonfunctional Variants of GSTT1 and GSTM1 Gene Polymorphisms.

Comparative analysis of the parameters of LPO, antioxidant defense (AOD), and the thiol/disulfide system was performed in fertile and infertile males of reproductive age carrying different genotypes of the glutathione system genes. Blood plasma, blood hemolysate, and ejaculate served as specimens for biochemical studies. A decrease in glutathione S-transferase activity was found in blood and ejaculate specimens from fertile and infertile carriers of nonfunctional GSTT1(0/0)/GSTM1(0/0) genotypes.

[Impact of CPAP therapy on erectile function during sleep and testosterone level in men with sleep apnea syndrome].

The article presents the results of a polysomnographic study with simultaneous monitoring spontaneous nocturnal erections - Nocturnal Penile Tumescences (NPT) in 69 men with age-related androgen deficiency (AAD). Of these, 45 patients were diagnosed with obstructive sleep apnea syndrome (OSAS). In 34 of the 45 patients with OSAS, regimens of non-invasive ventilation with positive-positive airway pressure (CPAP) were selected.

Effect of Preparation Based on Trametes Pubescens Xylotroph Fungi on Lipid Peroxidation in the Blood of Experimental Animals under Conditions of Dark Stress.

Using the model of dark stress caused by animal maintenance at dimmed light we showed that Trametin (product obtained during liquid-phase culturing of Trametes pubescens xylotroph fungi) effectively prevented oxidative stress under conditions of light deprivation. The preparation increased the level of unsaturation of lipids, reduced the concentration of primary and end-products of LPO, and increases both the integral parameter of the antioxidant defense system (total antioxidant activity) and its components (activity of superoxide dismutase and reduced glutathione).

Evaluation of myocardial energy parameters during simulation of epinephrine damage under conditions of cell transplantation.

The effects of transplantation of xenogenic neonatal heart cells on energy processes were studied in rat myocardium during the early period of epinephrine injury. Transplantation promoted a less pronounced ATP hydrolys to adenosine monophosphate and inorganic phosphate, a higher level of creatine phosphate, pyruvate, lactate, retention and activation of myocardial enzymes involved in energy metabolism.