نتایج جستجو برای: 23srrna
تعداد نتایج: 26 فیلتر نتایج به سال:
Background The efficacy and applicability of molecular testing to guide the selection of antibiotics in triple Helicobacter pylori (H. pylori) eradication regimens have not been reported. We tested a 7-day, genotypic resistance-guided triple H. pylori eradication therapy in a high-resistance setting. Methods Consecutive dyspeptic patients with H. pylori infection were prospectively enrolled. ...
Azithromycin is used as an alternative medicine in patients with syphilis who are intolerant to penicillin. Nevertheless, the report of treatment failure of azithromycin for patients with syphilis has raised concerns in China in the past years. In this study, 178 patients with early syphilis, who were treated in sexually transmitted infections clinics in four cities in Guangxi Zhuang Autonomous...
Colonization by Helicobacter species is commonly noted in many mammals. These infections often remain unrecognized, but can cause severe health complications or more subtle host immune perturbations. The aim of this study was to isolate and characterize putative novel Helicobacter spp. from Bengal tigers in Thailand. Morphological investigation (Gram-staining and electron microscopy) and geneti...
BACKGROUND Helicobacter pylori is curved Gram negative and microaerophilic bacilli that have infected half of the world's population. It is recognized as the causative agent of duodenal ulcer, gastritis peptic ulcer, mucosa-associated lymphoid tissue (MALT) lymphoma and is associated with gastric adenocarcinoma. Resistance to clarithromycin is related to point mutations in 23SrRNA gene on nt 21...
چکیده زمینه و هدف: رژیم های درمانی متداول برای ریشه کنی هلیکوباکترپیلوری شامل دو آنتی بیوتیک، همراه با مهارکننده های پمپ پروتونی و ترکیبات بیسموت است. کلاریترومایسین یکی از کلیدی ترین آنتی بیوتیک های مورد استفاده در رژیم های درمانی در ایران است. هدف از این پژوهش، تعیین مقاومت به کلاریترومایسین و ارزیابی نقش جهش های نقطه ای متداولa2143g ، a2142g و a2142c در ایجاد مقاومت به این دارو می باشد. روش ...
Francisella noatunensis subsp. orientalis (Fno) is the causative agent of piscine francisellosis, an emerging infectious disease in Asia and Latin America. In this study two outbreaks of francisellosis were diagnosed in the UK on the basis of histopathology, electron microscopy, PCR, bacterial isolation and fulfillment of Koch's postulates. Furthermore, a phenotypic fingerprint based on biochem...
conclusions in the present study, the frequency of clarithromycin resistance was lower than the other studies conducted in iran. resistance frequency in samples isolated from gastric ulcer was higher than other gastric disorders. women and patients aged more than 60 years old showed the most resistance frequency in this study. all resistant strains had the a2143g genotype. results of the 89 h. ...
Mastitis is one of the common diseases of dairy cattle and an inflammatory response of the mammary glands tissue. Mastitis causes considerable loss to the dairy industry. Among several bacterial pathogens that can cause mastitis, Staphylococcus aureus is probably the most lethal agent because it causes chronic and deep infection in the mammary glands that is extremely difficult to be cured. The...
زمینه و هدف: سالمونــلا، از مهم تریــن پاتوژن هــای ایجاد کننده اسهال و بیماری های ناشی از غذا در انسان می باشــد. از علایــم آن، اسهال، تــب، استفراغ و در برخــی مــوارد، اسهال خونــی است. به دلیل اهمیت این ارگانیسم به عنــوان یکــی از پاتوژن هــای بیماریــزا، شناسایــی و تشخیــص سریــع ایــن پاتــوژن و همچنین تمایز سروتیپ های آن از هم توسط روشهای مولکولی، لازم می باشد. هدف از این مطالعه، بررس...
Objective. To study primary resistance of H. pylori to clarithromycin in residents Gomel region by real-time polymerase chain reaction (PCR RT) using TaqMan® MGB probes. Materials and methods. The included 184 patients diagnosed with gastritis duodenitis, K29, median age 48.5 years (25% 75% were 37 61 old). According the patients’ questionnaires, no clarithromycin-based eradication therapy was ...
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