Antibiotic class with potent in vivo activity targeting lipopolysaccharide synthesis in Gram-negative bacteria.

Here, we describe the identification of an antibiotic class acting via LpxH, a clinically unexploited target in lipopolysaccharide synthesis. The lipopolysaccharide synthesis pathway is essential in most Gram-negative bacteria and there is no analogous pathway in humans. Based on a series of phenotypic screens, we identified a hit targeting this pathway that had activity on efflux-defective strains of .

Styrylpyridinium Derivatives for Fluorescent Cell Imaging.

A set of styrylpyridinium (SP) compounds was synthesised in order to study their spectroscopic and cell labelling properties. The compounds comprised different electron donating parts (julolidine, -dimethylaminophenyl, -methoxyphenyl, 3,4,5-trimethoxyphenyl), conjugated linkers (vinyl, divinyl), and an electron-withdrawing -alkylpyridinium part. Geminal or -compounds incorporating two styrylpyridinium (-SP) moieties at the 1,3-trimethylene unit were synthesised.

[LITERATURE REVIEW OF GUIDELINES FOR MEDICAL DEVICES ASSESSMENT].

Background: Research on the development and implementation of new principles and methods applicable in the evaluation of medical devices (MD) will allow to accumulate new, as well as the most effective long-used and proven approaches to the clinical and economic evaluation of such an important and extensive class of medical technologies.

Aims: The aim of the study is to identify and analyze developed, approved recommendations for the assessment of MD in the world and domestic practice of assessing health technologies, as well as to find and summarize the current principles, optimal proven and innovative methods for assessing MD for the draft modern recommendations for MD assessment in Moscow.

Materials And Methods: The sources of the study were scientific articles on the topic of MD assessment and recommendations published over the past five years.

[Pathogenesis, diagnosis, prevention and treatment of disseminated intravascular coagulation syndrome in COVID-19 infection].

Aim: Clinical characteristics of disseminated intravascular coagulation (DIC) in COVID-19 infection and assessment of the effectiveness of complex therapy for this syndrome at the stages of prevention and treatment of various complications.

Materials And Methods: The study of publications was carried out through search engines on the Internet using keywords. To diagnose the infection, the COVID-19 program was used on the MeDiCase platform, which is publicly available on www.

Antifungal activity of styrylpyridinium compounds against Candida albicans.

We synthesized a set of 13 new and earlier described styrylpyridinium compounds (N-alkyl styrylpyridinium salts with bromide or tosylate anions) in order to evaluate antifungal activity against C. albicans cells, to assay the possible synergism with fluconazole, and to estimate cytotoxicity to mammalian cells. All compounds were synthesized according to a well-known two-step procedure involving alkylation of γ-picoline with appropriate alkyl bromide and further condensation with substituted benzaldehyde.