[The metrological support of medical laboratory activity].

The article discusses the methodological approaches in implementing of regulations of the Federal law FZ-102 "On the support of unity of measurements in the area of laboratory medicine "from the positions of GOSTK ISO 9001-2008 "The systems of quality management. Requirements" and GOST K ISO 15189-2009 "medical laboratories. The particular requirements to quality and competence". The application of GOSTK ISO 18113.1-5 "The medicine items for diagnostic in vitro. Information provided by manufacturer (marking)" neatly assigns the responsibility for support of metrological correctness of laboratory measurements.

[The effect of solar ultraviolet on the system of microorganisms-higher plant antibiotics, a natural phenomenon and a new approach to enhancing the efficacy of antibiotics]. / Vozdeistvie ul'trafioleta solnechnogo izlucheniia na sistemu mikroorganizmy--antibiotiki vysshikh rastenii--prirodnoe iavlenie i novyi podkhod k povysheniiu éffektivnosti antibiotikov.

Under the effect of solar radiation some antibiotics of plant origin (phenylheptatriin, bakuchiol and others) showed antimicrobial phototoxicity differing by the spectrum and activity from the antibiotic action. The highest in vitro antimicrobial phototoxicity was observed with polyacetylene phenylheptatriin: the activation effect of solar radiation on it was due to UV-A and developed in gaseous phase or to a lesser extent in dispersed liquid phase. For comparison, 18 currently used antibiotics of various chemical structure were investigated and no phototoxicity under the effect of solar radiation with respect to the tested microbes was detected. In nature the phenomenon of antimicrobial phototoxicity of plant secondary metabolites due to the effect of solar radiation is probably of large scale. The study of the phenomenon is a new trend in biology (plant antibiotics and phytoncides, phytoimmunity, ecological and evolutionary microbiology, etc.) and a new approach to increase the efficacy of some antibiotics and to develop principally novel photochemotherapeutics for the treatment of infections in humans, animals and plants.

[A complex antibiotic preparation obtained from a medicinal plant from the family Asteraceae]. / Kompleksnyi antibioticheskii preparat, poluchennyi iz lekarstvennogo rasteniia semeistva Asteraceae.

Data of in vitro and in vivo investigations of antimicrobial activity of preparation K carried out both by the authors and by other researchers and pharmacological properties of this preparation have been summarized. Preparation K has been obtained from medicinal plant of the Asteraceae family. It is a natural composition of two antibiotics and of a number of minor compounds. The preparation possesses a wide spectrum of biological action. It is antimicrobially active against gram-positive bacteria, some species of gram-negative bacteria, fungi-dermatophytes including antibiotic-resistant strains. It is not toxic for animals, stimulates some defensive reactions of macroorganism, has immunomodulating, anti-inflammatory, anti-exudative, keratolytic properties. Preparation K is efficient for treatment of experimental mycoses of animals and is clinically tested as a local agent for treatment of dermatomycoses.