Monomeric crystal structure of the vaccine carrier protein CRM and implications for vaccine development.

CRM is a genetically detoxified mutant of diphtheria toxin (DT) that is widely used as a carrier protein in conjugate vaccines. Protective immune responses to several bacterial diseases are obtained by coupling CRM to glycans from these pathogens. Wild-type DT has been described in two oligomeric forms: a monomer and a domain-swapped dimer.

[Comparative epidemiology of thermal injury and hypothermia].

The paper presents the results of a comparative epidemiological study of thermal injury and fatal hypothermia based on the results of consolidated reports of the Bureau of Forensic Medicine of the Moscow Department of Health for 2017-2019. It was analyzed the archival material for three calendar years. It was used a continuous retrospective research method with an assessment of the general aggregate of the death incidence from thermal injury and hypothermia in Moscow in 2017-2019 by means of nonparametric statistical methods.

[Forensic diagnosis of sudden death of young people based on morphological analysis of the cardiac conduction system].

The aim of study was to develop a comprehensive assessment of the central and peripheral parts of the nervous system with a determination of degree of severity of alterative changes in comparison with the condition of myocardial contractile apparatus. Own observations on modern methods of morphological study of the cardiac conduction system in the sudden death of young people are presented. Particular attention is paid to the technique of isolating and coloring the nervous structures of sympathetic and parasympathetic parts of the autonomic nervous system, including the medulla oblongata, sinus-atrial and atrial-ventricular nodes, atrioventricular bundle (the His bundle), Purkinje fibers.

Analytical Comparability Assessments of 5 Recombinant CRM Proteins From Different Manufacturers and Expression Systems.

Cross-reacting material 197 (CRM), a single amino acid mutant of diphtheria toxoid, is a commonly used carrier protein in commercial polysaccharide protein conjugate vaccines. In this study, CRM proteins from 3 different expression systems and 5 different manufacturers were obtained for an analytical comparability assessment using a wide variety of physicochemical and in vitro antigenic binding assays. A comprehensive analysis of the 5 CRM molecules demonstrate that recombinant CRM's expressed in heterologous systems (Escherichia coli and Pseudomonas fluorescens) are overall highly similar (if not better in some cases) to those expressed in the traditional system (Corynebacterium diphtheriae) in terms of primary sequence/post-translational modifications, higher order structural integrity, apparent solubility, physical stability profile (vs.

[The forensic medical characteristic of sudden death associated with metabolic syndrome].

The detection of grade II-III central obesity on a corpse in conjunction with the identification of two additional criteria (such as arterial hypertension and impaired glucose tolerance) provides, if combined with the autopsy data (including the visual reduction of muscular mass, the increased total amount of the adipose tissue, gynecomastia in men together with hypertrophied abdominal adipose tissue accumulation, decreased face and body pilosis), a basis for diagnostics of metabolic syndrome (MS). The objective parameters for this purpose are waist circumference measurements, corpse weight and height, the degree of visceral obesity, narrowing of the renal arteries as a result of their compression by the surrounding adipose tissue, and accumulation of epicardial fat confirmed by the results of the biochemical analysis. The signs of plasmorrhagia combined with fibrinoid degeneration of the vascular walls in the microcirculatory bed make it possible to suspect, with a high degree of probability, the development of hypertensive crisis that may result in a sudden death of the patients presenting with metabolic syndrome.