Optimization of microorganism preservation conditions for the development of an acute toxicity bioassay for biocides.

Biocides, also referred to as 'microbicides' or 'inhibitors', are widely used in industrial processes (e.g. utility water in cooling towers) to control and/or eliminate the growth of microorganisms.

[Present-day possibilities of surgical management of tumour-like forms of arteriovenous angiodysplasias].

Described herein is the treatment policy pursued in a relatively uncommonly encountered variant of congenital vascular pathology, i. e. arteriovenous angiodysplasias.

[Diagnostics and correction of vascular disorders in upper extremity muscular transplants].

The features of clinical presentation, diagnosis and treatment of the acute circulatory disorders of muscular transplants in 7 patients after 59 transplantations of revascularized and reinnervated muscle grafts in severe consequences of upper extremities injuries were presented in the article. Tissue complex on pedicle were transplanted to upper extremity in Volkmann contracture (n=47), in consequences of the gunshot wound (n=7) and electric trauma (n=5). Signs of circulatory disorders of the transplanted tissue complex were registered shortly after the operation in 7 patients.

[Nitric oxide synthesis during different stages of competition period in well-trained athletes].

In the study 26 trained male and female sportsmen aged 18-20 years old have been investigated. The sex differences in the degree of the nitric oxide synthesis in various stages of their training and competitive activities were shown. In female sportsmen, at the time of maximal functional capacity and adaptation (beginning of the competition period), a multi-path nonoxidizing arginine metabolism by arginase was prevailed over the oxidative degradation of L-arginine by cNOS.

[Characteristics of arginine metabolism and nitric oxide synthesis in young people during adaptation to physical load in training and competition periods].

A survey of 29 trained and untrained youths in the age of 18-20 years was carried out. It is shown that the optimal level of adaptation of the body to prolonged and intensive physical activity is provided by multi-dominance nonoxidizing arginase metabolism and its oxidative metabolism by constitutively calcium dependent NO-synthase (eNOS and nNOS). Nonoxidizing arginase metabolism results in formation of several important low-molecular bioregulators and antioxidants (urea, polyamines, GABA).