96 research outputs found
Development of electron-beam equipment and technology of layer welding of the wire in the conditions of additive technologies
Immunotoxins are powerful tools to specifically eliminate deviated cells. Due to the side effects of the original immunotoxins, they were only considered for the treatment of cancer as in these cases, the potential favourable effect outweighed the unwanted toxic side effects. Over time, many improvements in the construction of immunotoxins have been implemented that circumvent, or at least strongly diminish, the side effects. In consequence this opens the way to employ these immunotoxins for the treatment of non-life threatening diseases. One such category of disease could be the many chronic inflammatory disorders in which an uncontrolled interaction between inflammatory cells leads to chronicity. In several of these chronic conditions, activated macrophages, which are characterised by an increased expression of CD64, are known to play a key role. In this review we discus the data presently available on elimination of activated macrophages through CD64 immunotoxins in several animal models for chronic disease. A chemically linked complete antibody with the plant toxin Ricin-A, proved very effective and provided proof of concept. Subsequently, the development towards genetically engineered, fully human, multivalent single chain based immunotoxins that have diminished immunogenicity, is discussed. The data show that the specific elimination of activated macrophages through CD64 is indeed beneficial for the course of disease. As opposed to other methods used to inactivate or eliminate macrophages, with the CD64 based immunotoxins only the activated population is killed. This may open the way to apply these immunotoxins as therapeutics in chronic inflammatory disease
Evaluation of the ESBL-coding plasmids transmissibility in E. coli isolated from ambulatory patient's urina
Representatives of the Enterobacteriaceae family are the main causative agents of urinary tract infections. Escherichia coli can exhibit resistance to [beta] -lactam antibiotics by synthesizing ESBL (extended spectrum [beta]-lactamases). CTX-M [beta] -lactamases are the dominant group of ESBL. In this paper, we investigated the ability of E. coli urinary isolates to transmit resistance genes within the plasmid. An analysis of the effectiveness of conjugation has shown that E. coli strains producing ESBL are capable of transferring resistance genes to a recipient bacterium at a high frequency
Spectroscopic investigation of unstudied southern PNe
We present a spectroscopic investigation of two hitherto unstudied galactic
planetary nebulae (MeWe 1-10 and MeWe 1-11) and one candidate object (MeWe
2-5). The candidate object clearly has been identified as a bipolar hourglass
shaped PN. The galactic foreground extinction was derived and using
photoionization models with CLOUDY the two round objects were classified as
highly evolved nebulae.Comment: LaTeX, 5 pages with 6 figures, accepted in Astron. & Astrophy
Горизонтальные классификаторы. Основы теории и расчета: моногр.
Приведены технологические схемы получения строительных песков при
гидромеханизированной добыче, основные конструктивные схемы классификаторов,
используемых при получении строительных песков. Особое внимание уделено изучению
процесса взаимодействия проточной части горизонтального классификатора с
совокупностью твердых частиц, расположенных в горизонтальном ускоренном потоке
несущей среды. Выполнено математическое моделирование ускоренного движения
горизонтального потока и твердых частиц в пределах разнонаклонных поверхностей
горизонтального классификатора. Экспериментально изучено гравитационное осаждение
твердых частиц, рассмотренное в виде вертикальной и горизонтальной составляющих, а
также влияние стесненности движения и перемещения твердых частиц относительно
несущего горизонтального потока.
Приведена методика расчета и выбора параметров классификаторов, информация об
опыте проектирования и внедрения горизонтальных классификаторов в составе добычных
комплексов при освоении обводненных месторождений песков.
Монография может быть полезна студентам, инженерно-техническим работникам,
сотрудникам высших учебных заведений, научно-исследовательских институтов и
проектных организаций горной промышленности
Obesity as Assessed by Body Adiposity Index and Multivariable Cardiovascular Disease Risk
To assess the role of body adiposity index (BAI) in predicting cardiovascular disease (CVD) and coronary heart disease (CHD) mortality, in comparison with body mass index (BMI), waist circumference (WC), and the waist circumference to hip circumference ratio (WHR). This study was a prospective 15 year mortality follow-up of 4175 Australian males, free of heart disease, diabetes and stroke. The Framingham Risk Scores (FRS) for CHD and CVD death were calculated at baseline for all subjects. Multivariable logistic regression was used to assess the effects of the measures of obesity on CVD and CHD mortality, before adjustment and after adjustment for FRS. The predictive ability of BAI, though present in the unadjusted analyses, was generally not significant after adjustment for age and FRS for both CVD and CHD mortality. BMI behaved similarly to BAI in that its predictive ability was generally not significant after adjustments. Both WC and WHR were significant predictors of CVD and CHD mortality and remained significant after adjustment for covariates. BAI appeared to be of potential interest as a measure of % body fat and of obesity, but was ineffective in predicting CVD and CHD
Afamin predicts the prevalence and incidence of nonalcoholic fatty liver disease
ObjectivesIn the general population, increased afamin concentrations are associated with the prevalence and incidence of metabolic syndrome as well as type 2 diabetes. Although metabolic syndrome is commonly associated with nonalcoholic fatty liver disease (NAFLD), there exist no information on afamin and NAFLD.MethodsAfamin concentrations were cross-sectionally measured in 146 Austrian patients with NAFLD, in 45 patients without NAFLD, and in 292 age- and sex-matched healthy controls. Furthermore, the feasibility of afamin to predict incident NAFLD was evaluated in 1,434 adult participants in the population-based Cardiovascular Risk in Young Finns Study during a 10-year follow-up.ResultsMedian afamin concentrations were significantly higher in NAFLD patients (83.6 mg/L) than in patients without NAFLD (61.6 mg/L, pConclusionsAfamin concentrations are increased in patients with NAFLD and independently predict the development of NAFLD in a population-based cohort.</p
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