Локальный туберкулез у детей раннего возраста

The purpose is to study clinical and X-ray manifestations of local tuberculosis in children of the tender age and to detect risk factors promoting the development of the disease and complicating it, thus the analysis included 82 cases of children cases under 3 years old who had been treated in Children TB Hospital in 2013-2015. Tuberculosis of chest lymph nodes was diagnosed in 68.3%of them, and every fifth child had primary tuberculosis complex. Every other child was suffering from the complicated course of local tuberculosis (n = 42). The following forms were registered: bronchial pulmonary lesions (n = 27), lymphogenic progression (n = 13), including development of disseminated tuberculosis and meningitis. Positive results of sputum tests were observed in 14 (17.1%) children, of them 50% had multiple drug resistance. 10% of children suffering from tuberculosis manifested anergy. The predictors of such course of the disease included the absence of BCG vaccination and super infection with Mycobacterium tuberculosis.С целью изучения клинико-рентгенологических проявлений локального туберкулеза у детей раннего возраста и выявления факторов риска, способствующих развитию заболевания и отягощающих течение туберкулезного процесса, проведен анализ 82 историй болезни детей в возрасте до 3 лет, лечившихся в Детской туберкулезной больнице в 2013-2015 гг. Туберкулез внутригрудных лимфатических узлов диагностировали у 68,3%, первичный туберкулезный комплекс - у каждого пятого. Осложненное течение локальных форм - у каждого второго (n = 42). Регистрировались: бронхолегочные поражения (n = 27), лимфогематогенное прогрессирование (n = 13), в том числе с развитием диссеминированного туберкулеза, менингита. Бактериовыделение - у 14 (17,1%) детей, из них с множественной лекарственной устойчивостью возбудителя - у 50,0%. Туберкулез у 10% детей протекал на фоне анергии. К предикторам такого течения отнесены отсутствие прививки БЦЖ, суперинфекция МБТ

Таксономия возбудителей и применение Максаквина и ципрофлоксации а в лечении осложненных инфекций мочевыводящих путей

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Нарушение метилирования ДНК при злокачественных новообразованиях

DNA methylation is a chromatin modification that plays an important role in the epigenetic regulation of gene expression. Changes in DNA methylation patterns are characteristic of many malignant neoplasms. DNA methylation is occurred by DNA methyltransferases (DNMTs), while demethylation is mediated by TET family proteins. Mutations and changes in the expression profile of these enzymes lead to DNA hypo- and hypermethylation and have a strong impact on carcinogenesis. In this review, we considered the key aspects of the mechanisms of regulation of DNA methylation and demethylation, and also analyzed the role of DNA methyltransferases and TET family proteins in the pathogenesis of various malignant neoplasms.During the preparation of the review, we used the following biomedical literature information bases: Scopus (504), PubMed (553), Web of Science (1568), eLibrary (190). To obtain full-text documents, the electronic resources of PubMed Central (PMC), Science Direct, Research Gate, CyberLeninka were used. To analyze the mutational profile of epigenetic regulatory enzymes, we used the cBioportal portal (https://www.cbioportal.org / ), data from The AACR Project GENIE Consortium (https://www.mycancergenome.org / ), COSMIC, Clinvar, and The Cancer Genome Atlas (TCGA).Метилирование ДНК представляет собой модификацию хроматина, которая играет важную роль в эпигенетической регуляции экспрессии генов. Изменение паттернов метилирования ДНК характерно для многих злокачественных новообразований. Метилирование ДНК осуществляется ДНК-метилтрансферазами (DNMTs), в то время как деметилирование происходит под действием метилцитозиновых диоксигеназ, или белков семейства TET. Мутации и изменение профиля экспрессии данных ферментов, приводящие к гипо- и гиперметилированию ДНК, могут оказывать сильное влияние на канцерогенез.В обзоре рассмотрены ключевые аспекты механизмов регуляции метилирования и деметилирования ДНК, а также проведен анализ роли ДНК-метилтрансфераз и белков семейства ТЕТ в патогенезе различных злокачественных новообразований.При подготовке обзора были использованы информационные базы биомедицинской литературы Scopus (504), PubMed (553), Web of Science (1568), eLibrary (190), для получения полнотекстовых документов – электронные ресурсы PubMed Central (PMC), Science Direct, Research Gate, КиберЛенинка, для анализа мутационного профиля эпигенетических регуляторных ферментов – портал cBioportal (https://www.cbioportal.org / ), данные проекта The AACR Project GENIE Consortium (https://www.mycancergenome.org / ), базы данных COSMIC, Clinvar и Атласа генома рака (The Cancer Genome Atlas, TCGA)

Local tuberculosis in children of the tender age

The purpose is to study clinical and X-ray manifestations of local tuberculosis in children of the tender age and to detect risk factors promoting the development of the disease and complicating it, thus the analysis included 82 cases of children cases under 3 years old who had been treated in Children TB Hospital in 2013-2015. Tuberculosis of chest lymph nodes was diagnosed in 68.3%of them, and every fifth child had primary tuberculosis complex. Every other child was suffering from the complicated course of local tuberculosis (n = 42). The following forms were registered: bronchial pulmonary lesions (n = 27), lymphogenic progression (n = 13), including development of disseminated tuberculosis and meningitis. Positive results of sputum tests were observed in 14 (17.1%) children, of them 50% had multiple drug resistance. 10% of children suffering from tuberculosis manifested anergy. The predictors of such course of the disease included the absence of BCG vaccination and super infection with Mycobacterium tuberculosis

Vascular endothelial growth factor (VEGF) and prostate pathology

PURPOSE: Previous studies suggest that vascular endothelial growth factor (VEGF) circulating levels might improve identification of patients with prostate cancer but results are conflicting. Our aim was to compare serum VEGF levels across different prostate pathologies (including benign prostatic hyperplasia, prostatitis, high grade prostate intraepithelial neoplasia and prostate cancer) in patients at high risk of prostate cancer. MATERIALS AND METHODS: We consecutively enrolled 186 subjects with abnormal digital rectal examination and/or total PSA (tPSA) = 2.5 ng/mL. Blood was collected before diagnostic ultrasound guided trans-rectal prostate biopsy, or any prostate oncology treatment, to measure PSA isoforms and VEGF. Unconditional logistic regression was used to compute age-, tPSA- and free/total PSA-adjusted odds ratios (OR) and respective 95% confidence intervals (95% CI) for the association between serum VEGF and different prostatic pathologies. RESULTS: Prostate biopsy main diagnoses were normal or benign prostatic hyperplasia (27.3%), prostatitis (16.6%), and prostatic cancer (55.0%). The median VEGF levels (ng/mL) in these groups were 178.2, 261.3 and 266.4 (p = 0.029), respectively, but no significant differences were observed for benign vs. malignant pathologies (215.2 vs. 266.4, p = 0.551). No independent association was observed between VEGF (3rd vs. 1st third) and prostate cancer, when compared to benign conditions (adjusted OR = 1.44; CI 95%: 0.64-3.26). CONCLUSIONS: In patients at high risk of prostate cancer, circulating VEGF levels have no clinical role in deciding which patients should be submitted to prostate biopsy. Prostatitis patients, often with higher PSA levels, also present high serum levels of VEGF, and their inclusion in control groups might explain the heterogeneous results in previous studies