Ion Channels as Reporters of Membrane Receptor Function: Automated Analysis in Xenopus Oocytes.

G-protein-coupled receptors (GPCR) are the most widely used system of communication used by cells. They sense external signals and translate them into intracellular signals. The information is carried mechanically across the cell membrane, without perturbing its integrity.

Possibilities of association of azoospermia and oligospermia with some HLA system antigens.

Modern knowledge of the HLA system structure and its role in the organism supports the statement that the presence of HLA antigens in a person increases his/her predisposition to some diseases. Association of HLA antigens with some diseases has already been confirmed by many authors. This study was an attempt to obtain insight into the possibilities of the association of HLA antigens with azoospermia and oligospermia of an unknown aetiology.

[Effect of inorganic detergent components on the biodegradation of alkyl benzenesulfonates].

The rate of biodegradation of the alkyl chain of alkylbenzene sulphonates (ABS) carried out of the alkyl chain by pure adapted cultures of Pseudomonas fluorescens and Aspergillus sp. has been examined in the presence of four anorganic test compounds of commercial detergents. The strains were isolated from sewages by elected cultures.