نتایج جستجو برای: 16srrna gene
تعداد نتایج: 1141560 فیلتر نتایج به سال:
BACKGROUND Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group (SFG) rickettsiae. Although Spotted Fever is prevalent in the Middle East, no reports for the presence of tick-borne pathogens are available or any studies on the epidemiology of this disease in the West Bank. We aimed to identify the circulating hard tick vectors and genetical...
PURPOSE Helicobacter pylori is one of the most prevalent infectious agents in the world which causes a variety of gastrointestinal diseases including gastritis, peptic ulcer and gastric carcinoma. The objective of this study was to comparatively evaluate invasive (rapid urease test and polymerase chain reaction) and non-invasive (enzyme-linked immunosorbent assay) tests in diagnosis of infectio...
BACKGROUND Faecal microbiota transplantation is an experimental approach for the treatment of patients with ulcerative colitis. Although there is growing evidence that faecal microbiota transplantation is effective in this disease, factors affecting its response are unknown. AIMS To establish a faecal microbiota transplantation treatment protocol in ulcerative colitis patients, and to investi...
Tropical marine habitats often harbor high biodiversity, including many cryptic taxa. Though the prevalence of cryptic marine taxa is well known, the evolutionary histories of these groups remain poorly understood. The snapping shrimp genus Alpheus is a good model for such investigations, as cryptic species complexes are very common, indicating widespread genetic diversification with little or ...
This study was conducted to elucidate microbiological characteristics of river water and groundwater communities in order to improve our conceptual and predictive understanding of river and groundwater ecosystem processes, functioning and management. Rouge River bacterial communities from shallow groundwater and river water were screened using Biolog Ecoplates, which test for oxidation of selec...
objective(s): the aim of this study was to investigate the methylation status and mrna expression levels of p15, death-associated protein kinase (dapk), and suppressor of cytokine signaling-1 (socs1) genes in multiple myeloma (mm). materials and methods: the bone marrow samples of 54 mm patients were collected and the methylation status of the p15, dapk, and socs1 gene promoter regions was dete...
conclusions some results of the correlation coefficients are not the same with visualization. the reason may be due to the small number of data. materials and methods in the foundation-application study, we constructed two-way gene networks using nonparametric methods, such as spearman’s rank correlation coefficient and blomqvist’s measure, and compared them with pearson’s correlation coefficie...
The bio-preservation of fruits using cell free supernatant (CFS) lactic acid bacteria (LAB) isolated directly from locally fermented dairy product was an innovative approach. This study aimed to increase the shelf life and quality some fruit samples during storage at room temperature by coating with CFS Lb24 (L. plantarum strain MZ409592). Forty LAB were 30 products. Six isolates which had high...
ماکروفاژها از سلولهای مهم سیستم ایمنی در پاسخ به عوامل بیماریزای مختلف از جمله ویروس هرپس سیمپلکس یک 1- hsv0 هستند و عوامل موثر بر فعالیت آنها می توانند در سرنوشت بیماری موثر باشند. در این مطالعه اثر نوروپپتیدهای substance p(sp) وcalcitonin gene related-peptide (cgrp) که تحت شرایطی مثل استرس و التهاب از رشته های عصبی حسی آزاد می شوند و دارای گیرنده فعال بر روی ماکروفاژها می باشند ...
بیماری های ماهی یک خطر اصلی در آبزی پروری تجاری محسوب می شود که میلیون ها دلار ضرر اقتصادی را به این صنعت وارد می کنند. در این میان آئروموناس هیدروفیلا به عنوان عامل عفونی غالب در سپتی سمی های باکتریایی در سیستم پرورشی آب شیرین خصوصا خانواده کپورماهیان مطرح است. این باکتری عامل سپتی سمی خونریزی دهنده، پوسیدگی باله ودم و سندرم زخم همه گیر (eus) در ماهی ها می باشد. در این مطالعه تعداد 213 جدایه ب...
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