Influence of methane and other hydrocarbon gases on foraminifera and nematodes in the Northwestern part of the Black Sea.

This study investigates the response of foraminifera and nematodes to different types of methane and other hydrocarbon gases (alkanes, alkins) in bottom sediments of the northwestern shelf and continental slope of the Black Sea. Foraminifera are represented by 39 species from six orders, 13 families, 24 genera. Nematoda are represented by 48 species from six orders, 17 families, 27 genera.

[Cognitive aging and cognitive reserve: point of contact.].

The high risk of cognitive disorders in the elderly and senile age makes, on the one hand, to look for their causes, on the other - the possibility of prevention. In this regard, in recent years, the concept of cognitive reserve has become widespread, implying a set of quantitative parameters of the brain and its ability to maintain high functional activity in the process of aging and against the background of age-related brain pathology. The material presented in the article on the basis of the review of scientific literature highlights two main points concerning the possibility of preserving the cognitive reserve-gender and educational factors.

Immobilization of inorganic pyrophosphatase on nanodiamond particles retaining its high enzymatic activity.

Nanodiamond (ND) particles are popular platforms for the immobilization of molecular species. In the present research, enzyme Escherichia coli inorganic pyrophosphatase (PPase) was immobilized on detonation ND through covalent or noncovalent bonding and its enzymatic activity was characterized. Factors affecting adsorption of PPase such as ND size and surface chemistry were studied.

[Development of polycomponent metabolite probiotic].

Aim: Construct composition of polycomponent probiotic based on lactobacilli cultural fluid (CF) supernatant.

Materials And Methods: Species membership of lactobacilli strains was specified by analysis of nucleotide sequences of 16S RNA genes. For comparison of probiotic effect of CF, supernatant and ultrafiltrate of a consortium of lactobacilli strains, studies of specter of peptides, amino- and other organic acids contained in them as well as profile of bactericidal and fungicidal activity was carried out.

Effect of detonation nanodiamonds on phagocyte activity.

Detonation ND (nanodiamond) holds much promise for biological studies and medical applications. Properties like size of particles, inclination for modification of their surface and unambiguous biocompatibility are crucial. Of prime importance is interaction between ND and immune cells, which supervise foreign intrusion into an organism and eliminate it.