Защитное действие экстракта листьев черники в отношении эксайтотоксического действия глутамата на нейроны коры мозга крыс

The aqueous extract of blueberry leaves inhibits the glutamate-induced Ca2+ influx into the synaptosomes of rat brain neurons and the IC50 value of this process is close to the IC50 for MK-801, a well-known noncompetitive antagonist of glutamate NMDA subtype receptors. The aqueous extract of blueberry leaves protected the cultured neurons of the rat cerebral cortex from the neurotoxic effect of glutamate, and the inhibition intensity depended on the incubation time with the extract.Водный экстракт листьев черники ингибирует глутамат-индуцированный вход ионов Са2+ в синаптосомы нейронов мозга крыс, и IC50 этого процесса близка к IC50 для MK-801 – известного неконкурентного антагониста глутаматных рецепторов NMDA-подтипа. Водный экстракт листьев черники предохранял культивируемые нейроны коры мозга крысы от нейротоксического действия глутамата, причём выраженность ингибирования зависела от времени инкубации с экстрактом, на фоне которого действовал глутамат

FOXC2 controls adult lymphatic endothelial specialization, function, and gut lymphatic barrier preventing multiorgan failure.

The mechanisms maintaining adult lymphatic vascular specialization throughout life and their role in coordinating inter-organ communication to sustain homeostasis remain elusive. We report that inactivation of the mechanosensitive transcription factor Foxc2 in adult lymphatic endothelium leads to a stepwise intestine-to-lung systemic failure. Foxc2 loss compromised the gut epithelial barrier, promoted dysbiosis and bacterial translocation to peripheral lymph nodes, and increased circulating levels of purine metabolites and angiopoietin-2. Commensal microbiota depletion dampened systemic pro-inflammatory cytokine levels, corrected intestinal lymphatic dysfunction, and improved survival. Foxc2 loss skewed the specialization of lymphatic endothelial subsets, leading to populations with mixed, pro-fibrotic identities and to emergence of lymph node-like endothelial cells. Our study uncovers a cross-talk between lymphatic vascular function and commensal microbiota, provides single-cell atlas of lymphatic endothelial subtypes, and reveals organ-specific and systemic effects of dysfunctional lymphatics. These effects potentially contribute to the pathogenesis of diseases, such as inflammatory bowel disease, cancer, or lymphedema

Widespread aberrant alternative splicing despite molecular remission in chronic myeloid leukaemia patients

Vast transcriptomics and epigenomics changes are characteristic of human cancers, including leukaemia. At remission, we assume that these changes normalise so that omics-profiles resemble those of healthy individuals. However, an in-depth transcriptomic and epigenomic analysis of cancer remission has not been undertaken. A striking exemplar of targeted remission induction occurs in chronic myeloid leukaemia (CML) following tyrosine kinase inhibitor (TKI) therapy. Using RNA sequencing and whole-genome bisulfite sequencing, we profiled samples from chronic-phase CML patients at diagnosis and remission and compared these to healthy donors. Remarkably, our analyses revealed that abnormal splicing distinguishes remission samples from normal controls. This phenomenon is independent of the TKI drug used and in striking contrast to the normalisation of gene expression and DNA methylation patterns. Most remarkable are the high intron retention (IR) levels that even exceed those observed in the diagnosis samples. Increased IR affects cell cycle regulators at diagnosis and splicing regulators at remission. We show that aberrant splicing in CML is associated with reduced expression of specific splicing factors, histone modifications and reduced DNA methylation. Our results provide novel insights into the changing transcriptomic and epigenomic landscapes of CML patients during remission. The conceptually unanticipated observation of widespread aberrant alternative splicing after remission induction warrants further exploration. These results have broad implications for studying CML relapse and treating minimal residual disease.Ulf Schmitz, Jaynish S. Shah, Bijay P. Dhungel, Geoffray Monteuuis, Phuc-Loi Luu, Veronika Petrova, Cynthia Metierre, Shalima S. Nair, Charles G. Bailey, Verity A. Saunders, Ali G. Turhan, Deborah L. White, Susan Branford, Susan J. Clark, Timothy P. Hughes, Justin J.-L. Wong, and John E.J. Rask

The usage of project study technology in teaching of "Disaster Medicine"

The article considers the work stages of the project of the students and professor: the organization of the hospital function in higher state of readiness with predictable situation within the borders of administrative territory in terms of an emergency. The usage of the project study technology for work by students in groups develops research skills and systems thinking

Quality of life of hematologists in the Russian federation according to the rand sf-36 questionnaire [Качество жизни врачей-гематологов Российской Федерации по данным опросника RAND SF-36]

Medical profession is notable for its enormous social value and associated with no less responsibility. At the same time, society's requirements for doctors constantly increase. The regulation of medical activities in various disciplines becomes more and more stringent. The aim of the present article was to study the quality of life of 104 hematologists working in different regions of the Russian Federation. For this purpose, the Russian-language version of RAND SF-36 health survey questionnaire was used. Young doctors aged 35-44 years showed lowest scores on mental health inventory which may indicate negative emotional status and a low level of positive emotions. Compared to relatively healthy respondents, hematologists show a low level of emotional role functioning that may also indicate negative emotional status which in turn negatively affects the quality of health care delivery and appears to be a contributing factor in burnout syndrome. Compared to relatively healthy respondents, hematologists show higher pain scores which may indicate a specific attitude of doctors to pain due to their professional approach. Similar quality of life indicators indirectly suggest that hematologists in different regions of the Russian Federation regard their professional activities as a priority, and it affects their quality of life. Both the results obtained and the literature review prove the relevance of the study of human resources and development of programs aimed at continuity of personnel in the health care system. The quality of life of doctors in different disciplines should become the object of comprehensive sociological, clinical, and sanitation studies which will permit to design a program to improve the quality of life of the medical professionals. © 2020 Practical Medicine Publishing House. All rights reserved

Influence of thermotechnical and technological factors on temperature of blast-furnace blast

Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1988 (8) p. 116-120)Available from British Library Document Supply Centre- DSC:9022.06(BISI-Trans--27108)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo