نتایج جستجو برای: mtb complexes
تعداد نتایج: 140703 فیلتر نتایج به سال:
سابقه و هدف: سل به عنوان دومین علت مرگ و میر ناشی از عفونت شناخته شده است. روش های مولکولی مانند PCR، تکنیک های مناسبی برای شناسایی مایکوباکتریوم توبرکیلوسیس (MTB) هستند. بروز نتایج متفاوت در آزمایشگاه های مختلف، از معایب این تکنیک مولکولی است. این مطالعه با هدف طراحی، ساخت و کاربرد کنترل داخلی در روش PCR به منظور تشخیص MTB انجام شد. مواد و روش ها: به منظور ساخت کنترل داخلی ویژه MTB ، ابتدا پر...
سابقه و هدف: سل به عنوان دومین علت مرگ و میر ناشی از عفونت شناخته شده است. روش های مولکولی مانند PCR، تکنیک های مناسبی برای شناسایی مایکوباکتریوم توبرکیلوسیس (MTB) هستند. بروز نتایج متفاوت در آزمایشگاه های مختلف، از معایب این تکنیک مولکولی است. این مطالعه با هدف طراحی، ساخت و کاربرد کنترل داخلی در روش PCR به منظور تشخیص MTB انجام شد. مواد و روش ها: به منظور ساخت کنترل داخلی ویژه MTB ، ابتدا پر...
new hetero-binuclear hg-cu schiff base complexes were prepared by reaction of 2,2'-[1,1'-(2,2-dimethylpropane-1,3-diyldinitrilo)-diethyldyne]diphenolato}copper(ii) (cul1) and 6,6'-x-2,2'-[(2,2-dimethylpropane-1,3-diyl)bis(nitrilomethanylylidene)]diphenolato copper(ii) [(x = ethoxy (cul2) and methoxy (cul3)], with hgcl2 to give [cu(l1)hgcl2] (1), [cu(l2)hgcl2] (2), and [cu...
new hetero-binuclear hg-cu schiff base complexes were prepared by reaction of 2,2'-[1,1'-(2,2-dimethylpropane-1,3-diyldinitrilo)-diethyldyne]diphenolato}copper(ii) (cul1) and 6,6'-x-2,2'-[(2,2-dimethylpropane-1,3-diyl)bis(nitrilomethanylylidene)]diphenolato copper(ii) [(x = ethoxy (cul2) and methoxy (cul3)], with hgcl2 to give [cu(l1)hgcl2] (1), [cu(l2)hgcl2] (2), and [cu(l3)hgcl2] (3), res...
Tuberculosis (TB) infections, caused by multidrug‑resistant Mycobacterium tuberculosis (MDR MTB), remain a significant public health concern worldwide. The regulatory mechanisms underlying the emergence of MDR MTB strains remain to be fully elucidated, and further investigation is required in order to develop better strategies for TB control. The present study investigated the expression profil...
Mycobacterium tuberculosis (MTB) induces vigorous immune responses, yet persists inside macrophages, evading host immunity. MTB bacilli or lysate was found to inhibit macrophage expression of class II MHC (MHC-II) molecules and MHC-II Ag processing. This report characterizes and identifies a specific component of MTB that mediates these inhibitory effects. The inhibitor was extracted from MTB l...
Host-pathogen interactions determine the outcome following infection by mycobacterium tuberculosis (Mtb). Under adverse circumstances, normal Mtb can form cell-wall deficient (CWD) variants within macrophages, which have been considered an adaptive strategy for facilitating bacterial survival inside macrophages. However, the molecular mechanism by which infection of macrophages with different p...
Mycobacterium tuberculosis (Mtb) persists within lung granulomas, despite being subjected to diverse stress conditions, including hypoxia. We hypothesized that the response of host phagocytes to Mtb experiencing hypoxia is radically altered and designed in vitro experiment to study this phenomenon. Hypoxia-stressed (Mtb-H) and aerobically grown Mtb (Mtb-A) were used to infect Rhesus Macaque Bon...
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), infects one third of the world's population. Among these infections, clinical isolates belonging to the W-Beijing appear to be emerging, representing about 50% of Mtb isolates in East Asia, and about 13% of all Mtb isolates worldwide. In animal models, infection with W-Beijing strain, Mtb HN878, is considered "hyperviru...
Persistent Mycobacterium tuberculosis (MTB) likely encounters a phosphate-limited environment within macrophage phagosomes. We studied MTB growth, antibiotic susceptibility, and gene expression during phosphate limitation. With use of MTB mutants deficient in phosphate-related genes, we assessed bacillary survival under phosphate-limited conditions and in mouse and guinea pig lungs. Phosphate l...
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