نتایج جستجو برای: hkt genes

تعداد نتایج: 426388  

Journal: :journal of medical bacteriology 0
maryam moghadasi department of microbiology, boroujerd branch, islamic azad university, boroujerd, iran. mohsen mirzaee department of medical laboratory sciences, boroujerd branch, islamic azad university, boroujerd, iran. mohammad reza mehrabi department of medical laboratory sciences, boroujerd branch, islamic azad university, boroujerd, iran.

background :    klebsiella pneumoniae is among the most common and significant agents of community and hospital-acquired infections. plasmid mediated quinolone resistance (pmqr) was increasingly identified in enterobacteriaceae family worldwide. plasmid-mediated quinolone resistance (pmqr) was first reported in 1998 from a klebsiella pneumoniae isolate in the usa. till date, five qnr proteins h...

Journal: :iranian journal of public health 0
n parsa

background: an explosion of research has been done in discovering how human health is affected by environmental factors. i will discuss the impacts of environmental cancer causing factors and how they continue to cause multiple disruptions in cellular networking. some risk factors may not cause cancer. other factors initiate consecutive genetic mutations that would eventually alter the normal p...

Journal: :مجله بین المللی علوم آزمایشگاهی 0
hassan momtaz seyed morteza seifati marziyeh tavakol

background and aims: acinetobacter baumannii is mostly a cause of septicaemia, pneumonia and urinary tract infections following hospitalization of patients with more severe illnesses. the aim of this study was to determine the prevalence and detection of the most prevalent virulence genes in a. baumannii isolated from hospital infections of two largest hospitals of tehran, iran. materials and m...

Journal: :iranian journal of veterinary research 2014
r. firouzi a. derakhshandeh s. mehrshad s. heydari

salmonella is one of the most important zoonotic pathogens with many virulence factors playing a major role in its pathogenesis. the aims of this study were to detect spva, int2 and invc virulence genes of different salmonella serotypes isolated from various clinical animal and human sources, and to investigate antibiotic resistance patterns among these serotypes. using a pcr assay, a total of ...

Journal: :archives of pediatric infectious diseases 0
razieh nezarieh department of microbiology and virology, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) mohammad reza shakibaie department of microbiology and virology, kerman university of medical sciences, kerman, ir iran; research center for infectious diseases and tropical medicine, kerman university of medical sciences, kerman, ir iran; department of microbiology and virology, kerman university of medical sciences, kerman, ir iran. tel: +98-3419133408226, fax: +98-3413221671سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) hossein hosseini nave department of microbiology and virology, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) amin norouzi department of microbiology and virology, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) gholamabas salajegheh division of internal medicine, department of infectious diseases, afzalipour hospital, kerman, ir iran mehdi hayatbakhsh gastroenterology and hepatology research center, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences)

conclusions overall, except for pcvd432 and aggr, we detected high heterogeneity of virulence factors among eaec isolates causing diarrhea in children. one set of genes, in the combination, pic- sepa- agg4a, was associated with strong biofilm. results among the 322 e. coli isolated, 23 were identified as eaec. all eaec carried a 630-bp fragment of the plasmid (paa) encoded pcvd432 and aggr gene...

Journal: :iranian biomedical journal 0
fatemeh bandarian maryam sadat daneshpour mehdi hedayati mohsen naseri fereidoun azizi

background: apolipoprotein a2 (apoa2) is the second major apolipoprotein of the high-density lipoprotein cholesterol (hdl-c). the study aim was to identify apoa2 gene variation in individuals within two extreme tails of hdl-c levels and its relationship with hdl-c level. methods: this cross-sectional survey was conducted on participants from tehran glucose and lipid study (tlgs) at research ins...

Journal: :journal of agricultural science and technology 0
m. refahi department of crop protection, faculty of agriculture, ferdowsi university of mashhad, p. o. box: 91775-1163, mashhad, islamic republic of iran. s. baghaee ravari department of crop protection, faculty of agriculture, ferdowsi university of mashhad, p. o. box: 91775-1163, mashhad, islamic republic of iran. e. mahdikhani-moghaddam department of crop protection, faculty of agriculture, ferdowsi university of mashhad, p. o. box: 91775-1163, mashhad, islamic republic of iran.

in the current study, molecular typing of 50 erwinia amylovora strains related to different regions in iran was evaluated using multi-locus sequence analysis and variable number of tandem repeats. in the first assay, phylogenetic tree based on partial sequences of recombinase a, sigma factor s and a heat shock protein groel showed significant identity in studied gene sequences. a single nucleot...

Journal: :iranian journal of microbiology 0
seyedeh zohreh-mirbagheri student research committee (src); mashhad university of medical sciences, mashhad, iran and antimicrobial resistance research center, mashhad university of medical sciences, mashhad, iran. zahra meshkat antimicrobial resistance research center, mashhad university of medical sciences, mashhad, iran. mahboubeh naderinasab antimicrobial resistance research center, mashhad university of medical sciences, mashhad, iran. sina rostami department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, iran. maryam sadat-nabavinia department of biotechnology, school of pharmacy, mashhad university of medical sciences, mashhad, iran. mehdi rahmati microbiology research center, faculty of medicine, kerman university of medical sciences, kerman, iran.

background and objectives : the main cause of serious nosocomial infections is a gram-negative pathogen known as pseudomonas aeruginosa (p. aeruginosa). carbapenems are widely used as an appropriate treatment for these infections, however resistance to these agents has been observed and is increasing. metallo beta-lactamase (mbls) enzyme is one of the main causes of resistance to carbapenem. in...

Journal: :the journal of tehran university heart center 0
mehrdad sheikhvatan tehran heart center, tehran university of medical sciences, tehran, iran. mohammadali boroumand tehran heart center, tehran university of medical sciences, tehran, iran. mehrdad behmanesh department of human genetics, tarbiat modarres university, tehran, iran. seyed hesameddin abbasi tehran heart center, tehran university of medical sciences, tehran, iran. gholamreza davoodi tehran heart center, tehran university of medical sciences, tehran, iran. shayan ziaee tehran heart center, tehran university of medical sciences, tehran, iran.

background: the c1019t polymorphism of the connexin-37 (gja4) gene is a single-nucleotide polymorphisms involved in atherosclerotic plaque rupture and atherosclerosis predisposition. we examined the association between the c1019t polymorphism of the gja4 gene and the occurrence of myocardial infarction (mi) in patients with premature coronary artery disease (cad). methods: our study recruited 1...

Journal: :international journal of molecular and cellular medicine 0
meysam hasannejad bibalan department of microbiology, faculty of medicine, iran university of medical sciences, tehran, iran. morteza eshaghi department of microbiology, faculty of medicine, iran university of medical sciences, tehran, iran. mahdi rohani department of microbiology, pasteur institute of iran, tehran, iran. mohammad reza pourshafi department of microbiology, pasteur institute of iran, tehran, iran. malihe talebi department of microbiology, faculty of medicine, iran university of medical sciences, tehran, iran.

lactobacillus species play an important role in gastrointestinal (gi) tract function, intestinal microbiota balance, and the immune system activity by exerting a strong activity against many intestinal pathogens. the aim of this study was to isolate lactobacillus species from fecal samples, investigate their antimicrobial properties, and characterixe their bacteriocins encoding genes. 48 fecal ...

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