نتایج جستجو برای: 16srrna

تعداد نتایج: 335  

2012
Nursen Topcuoglu Fahriye Keskin Sevgi Ciftci Ceki Paltura Mehmet Kulekci Duran Ustek Guven Kulekci

OBJECTIVE In this study hypothesing the translocation of oral bacteria from oropharynx into the middle ear cavity may be involved in the pathogenesis of otitis media with effusion (OME), we aimed to investigate the presence and similarity of Fusobacterium nucleatum and Treponema denticola in saliva, nasopharyngeal secretion and the middle ear effusion samples from the children with OME. METHO...

2012
A. A. Al-Sulami T. A. A. Al-Edani A. A. Al-Abdula

Helicobacter pylori is recognized by the World Health Organization to be the primary cause of peptic ulcers, chronic gastritis, and stomach cancer, though the source of human infection is not well understood. One of the problems in understanding the source of human contamination is the difficulty in isolating the organism from the environment. However, the combination of PCR results with those ...

2018
Xiaowei Gao Jing Zhou Xiaolin Sun Xue Li Yanmin Zhou

This study is to investigate the subgingival bacterial diversity and community structure in the Uygur subjects with peri-implantitis.Totally 40 cases of gingival crevicular fluid were collected from Uygur subjects and divided into the Control group (healthy implants) and Case group (peri-implantitis), respectively. DNA was extracted, and the sequencing in the 16SrRNA V4-V5 region was conducted ...

Journal: :iranian journal of microbiology 0
davood azadi infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran. ramin dibaj infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran. mahnaz pourchangiz infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran. abassdaei naser infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran. hasan shojaei infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran.

molecular isolation of biodegradable mycobacteria from water supplies of iranian hospitals background and objectives: some microorganisms, mainly members of two genera including pseudomonas and mycobacterium , were found to be capable of transforming and degrading of polluting agents. we herein report the isolation of a few mycobacteria with the ability to biodegrade organic and inorganic compo...

2016
C.I. Lo S.A. Sankar B. Fall B. Sambe-Ba O. Mediannikov C. Robert N. Faye B. Wade D. Raoult P.-E. Fournier F. Fenollar

Strain FF9T was isolated in Dakar (Senegal) from a blood-culture taken from a 16-month-old child. MALDI-TOF analysis did not allow for identification. After sequencing, strain FF9T exhibited 98.18% similarity with the 16SrRNA sequence of Paenibacillus uliginis. A polyphasic study of phenotypic and genomic analyses showed that strain FF9T is Gram variable, catalase-positive, and presents a genom...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده کشاورزی 1391

در این پژوهش، هشت نمونه شیر، ماست و مسکه (کره ی محلی حاصل از شیر گوسفند متداول در منطقه ی جنوب خراسان) به منظور بررسی فلور لاکتیکی، مورد مطالعه قرار گرفتند. محیط کشت های mrs و m17 به ترتیب جهت جداسازی لاکتوباسیلوس ها و کوکسی ها در دو دمای c°30 وc°37، استفاده شد. از 672 جدایه ی بدست آمده، 314 جدایه برای انجام آزمون های بیوشیمیایی انتخاب شدند. جدایه ها به کمک رنگ آمیزی گرم، مورفولوژی کلنی، رشد در...

Background and Aims: The rate of variation in various genes of a bacterial species is different during evolution. Therefore, in systematic bacterial studies many researchers compare the phylogenetic tree of a particular gene to the standard tree of an rRNA gene. Regarding the importance of 16SrRNA gene and the evolutional process of RecA protein family, we investigated the changes in the select...

Journal: :Journal of current biomedical research 2023

Antimicrobial resistance are associated with several virulence factors such as biofilm. The biofilm formation ability of S. aureus complicates effective therapeutic management infections. In this research, we intend to observe in using two vitro phenotypic methods: tissue culture plate and Congo red agar well genes Ica A B & D 16SrRNA. total 150 presumptive coagulase positive staphylococcal...

Journal: :Journal of Investigative Dermatology 2022

Alopecia areata (AA) is a highly prevalent autoimmune disease (AD) leading to hair loss in affected individuals, which both genetic and environmental factors likely play role. Associations between changes the microbiome composition many ADs have been reported, however, characterization of role gut microbiota development AA has not undertaken. To investigate functional relevance vivo, we deplete...

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