Read by QxMD icon Read

Iranian Journal of Microbiology

Hadis Kiani, Manoochehr Makvandi, Alireza Samarbafzadeh, Ali Teimoori, Niloofar Nisi, Hamide Mehravaran, Hashem Radmehr, Zeinab Hosseini, Azadeh Haghi, Toran Shahani, Mehran Varnaseri, Nastran Ranjbari
BACKGROUND AND OBJECTIVES: Human Herpes 6 virus (HHV-6) could remain latent and chronic in the host cells after primary infection. HHV-6 genome encodes certain transactivation proteins which may results in development of malignant lymphoma. The association of human herpes six virus (HHV-6) infection and Hodgkin and Non-Hodgkin lymphomas is strongly supported by epidemiological studies. The aim of this study was to determine the prevalence of HHV-6 among the patients with Hodgkin, Non-Hodgkin's lymphoma...
April 2016: Iranian Journal of Microbiology
Parviz Majidy, Mazaher Khodabandehloo, Nammam-Ali Azadi
BACKGROUND AND OBJECTIVES: Varicella Zoster Virus (VZV) infection in pregnant women can cause complications for the mother and fetus. The aim of this study was to assess the immunity against VZV among young women before marriage. MATERIALS AND METHODS: In this cross-sectional study 250 women attending health centers in Sanandaj, Iran, for pre-marital medical check-up were randomly selected. The VZV IgG measured by ELISA and demographic characteristics of participants including their age, place of residence, number of siblings, occupation, education and history of chickenpox were also recorded...
April 2016: Iranian Journal of Microbiology
Farzan Modarresi, Omid Azizi, Mohammad Reza Shakibaie, Mohammad Motamedifar, Shahla Mansouri
BACKGROUND AND OBJECTIVES: In present study we aimed to clone the luxI gene encoding N-acyl-homoserine synthase detected in clinical isolates of Acinetobacter baumannii and study its expression in Escherichia coli transformants. MATERIALS AND METHODS: Four A. baumannii hospital strains which demonstrated strong biofilm activity were selected in this investigation. The presence of luxI gene was detected using PCR technique. Purified PCR product DNA was initially cloned into pTG19 and transformed to E...
April 2016: Iranian Journal of Microbiology
Roghayeh Teimourpour, Hosna Zare, Ramazan Rajabnia, Yousef Yahyapour, Zahra Meshkat
BACKGROUND AND OBJECTIVES: HBHA and Mtb32C have been isolated from culture supernatants of Mycobacterium tuberculosis (M. tuberculosis) and Mycobacterium bovis (M. bovis) and their immunogenicity previously studies have been confirmed. In this study, capability of constructed vector containing two mycobacterial immunodaminant antigens (Mtb32C-HBHA), in producing new chimeric protein under the in-vitro condition was examined. MATERIALS AND METHODS: In present study Huh7...
April 2016: Iranian Journal of Microbiology
Fatemeh Yeganeh-Sefidan, Reza Ghotaslou, Mohammad Taghi Akhi, Mohammad Reza Sadeghi, Yalda Mohammadzadeh-Asl, Hussein Bannazadeh Baghi
BACKGROUND AND OBJECTIVES: The emergence and spread of multidrug resistant (MDR) and extended spectrum β-lactamase (ESBL) producing strains reduces the number of effective drugs that can be used for treatment. The aim of this study was to evaluate the susceptibility profile of Enterobacteriaceae isolated from UTIs, specifically MDR and ESBL producing strains, to fosfomycin and other antibiotics. MATERIALS AND METHODS: The study was performed during a 6 month period (February 2014 to August 2015)...
April 2016: Iranian Journal of Microbiology
Sukanya Sudhaharan, Padmasri Chavali, Lakshmi Vemu
BACKGROUND AND OBJECTIVES: Brain abscess remains a potentially fatal central nervous system (CNS) disease, especially in developing countries. Anaerobic abscess is difficult to diagnose because of cumbersome procedures associated with the isolation of anaerobes. MATERIALS AND METHODS: This is a hospital-based retrospective microbiological analysis of 430 brain abscess materials (purulent aspirates and/or tissue), for anaerobic organisms, that were received between 1987-2014, by the Microbiology Laboratory in our Institute...
April 2016: Iranian Journal of Microbiology
Farhan Zameer, Rukmangada Ms, Jyoti Bala Chauhan, Shaukath Ara Khanum, Pramod Kumar, Aishwarya Tripurasundari Devi, Nagendra Prasad Mn, Dhananjaya Bl
BACKGROUND AND OBJECTIVES: Adhesion and colonization are prerequisites for the establishment of bacterial pathogenesis. The biofilm development of Pseudomonas aeruginosa was assessed on adhesive surfaces like dialysis membrane, stainless steel, glass and polystyrene. MATERIALS AND METHODS: Microtiter plate biofilm assay was performed to assess the effect of nutrient medium and growth parameters of P. aeruginosa. Further, its growth on adhesive surfaces namely hydrophilic (dialysis membrane) and hydrophobic (polystyrene plate, square glass and stainless steel coupon) was assessed...
April 2016: Iranian Journal of Microbiology
Sahar Irankhah, Mohammad Reza Soudi, Sara Gharavi
BACKGROUND AND OBJECTIVES: The US Environmental Protection Agency has suggested faecal enterococci as the primary bacterial indicators. Of more importance is their direct correlation with swimmer-associated gastroenteritis in recreation water quality monitoring. In contrast to other seawater bodies with 3.5% salinity, the recreational waters in the southern coast of the Caspian Sea possess its own salinity (about 1% w/v) and thus require further investigations to determine the capacity of Enterococcus faecalis as the sole primary microbial index in this unique aquatic environment...
April 2016: Iranian Journal of Microbiology
Azam Aliasghari, Mohammad Rabbani Khorasgani, Sedigheh Vaezifar, Fateh Rahimi, Habibollah Younesi, Maryam Khoroushi
BACKGROUND AND OBJECTIVES: The most prevalent and worldwide oral disease is dental caries that affects a significant proportion of the world population. There are some classical approaches for control, prevention and treatment of this pathologic condition; however, the results are still not completely successful. Therefore new methods are needed for better management of this important challenge. Chitosan is a natural and non-toxic polysaccharide with many biological applications, particularly as an antimicrobial agent...
April 2016: Iranian Journal of Microbiology
Elnaz Bayroodi, Razieh Jalal
BACKGROUND AND OBJECTIVES: Bacterial resistance to conventional antibiotics has become a widespread public health problem. The aim of this study was to investigate the influence of zinc oxide nanoparticles (ZnO NPs) on the antibacterial activity of several conventional antibiotics against Pseudomonas aeruginosa. MATERIALS AND METHODS: ZnO NPs were prepared by solvothermal method and dispersed in glycerol with the help of ammonium citrate as a dispersant. The antibacterial effects of the resulting ZnO nanofluid, ceftazidime, tobramycin, and ciprofloxacin were investigated against two P...
April 2016: Iranian Journal of Microbiology
Maryam Tabasi, Talat Mokhtari-Azad, Mohammad Reza Eshraghian, Azadeh Shadab, Somayeh Shatizadeh, Nazanin Zahra Shafiei-Jandaghi, Jila Yavarian
BACKGROUND AND OBJECTIVES: Human bocavirus (HBoV) is a newly discovered parvovirus. It has been detected primarily in children with acute respiratory tract infections. This study was conducted to clarify the frequency and genotype circulation pattern of HBoV in Iran. MATERIALS AND METHODS: Conventional PCR was performed on throat swabs of patients less than two years of age with respiratory illnesses during fall and winter 2012-2013. RESULTS: HBoV virus DNA was detected in 15 of 140 samples (10...
February 2016: Iranian Journal of Microbiology
Sanaz Dehbashi, Mohammad Reza Pourmand, Rahil Mashhadi
BACKGROUND AND OBJECTIVES: Streptococcus agalactiae is the leading cause of bacterial sepsis and meningitis in newborns and results in pneumonia and bacteremia in adults. A number of S. agalactiae components are involved in colonization of target cells. Destruction of peptidoglycan and division of covalently linked daughter cells is mediated by autolysins. In this study, autolytic activity and plasma binding ability of AFb novel recombinant protein of S. agalactiae was investigated. MATERIALS AND METHODS: The gbs1805 gene was cloned and expressed...
February 2016: Iranian Journal of Microbiology
Tayfur Demiray, Ozlem Akkaya Aydemir, Mehmet Koroglu, Ahmet Ozbek, Mustafa Altindis
Morganella morganii is rarely isolated from nosocomial infections. However, postoperative infections due to Morganella spp. were documented in literature and eye involvements of the infections usually result in severe sequels. We present a severe case infection, which was caused by M. morganii subsp. morganii, firstly appearing as conjunctivitis and complicated by bacteremia. The infectious agent isolated from both conjunctival and consecutive blood cultures. Identification and antimicrobial susceptibility tests were performed with the Vitek 2(®) automated system...
February 2016: Iranian Journal of Microbiology
Hamid Reza Goli, Mohammad Reza Nahaei, Mohammad Ahangarzadeh Rezaee, Alka Hasani, Hossein Samadi Kafil, Mohammad Aghazadeh
BACKGROUND AND OBJECTIVES: The prevalence of multidrug resistant Pseudomonas aeruginosa is the main reason of new drugs resurgence such as colistin. The main objectives of this study were to determine the antibiotic resistance pattern and the rate of colistin resistance along with its correlation with overexpression of MexAB-OprM and MexXY-OprM efflux pumps among P. aeruginosa isolates. MATERIALS AND METHODS: Hundred clinical isolates were collected from 100 patients during 6 months in 2014...
February 2016: Iranian Journal of Microbiology
Davood Mansury, Mohammad Motamedifar, Jamal Sarvari, Babak Shirazi, Azad Khaledi
BACKGROUND AND OBJECTIVES: Klebsiella pneumoniae, one of the important causes of nosocomial infections, is the most common extended spectrum β-lactamases (ESBLs) producing organism. ESBLs are defined as the enzymes capable of hydrolyzing oxyimino-cephalosporins, monobactams and carbapenems. The aims of this study were to identify ESBL-producing K. pneumoniae isolates and detect their antibiotic susceptibility pattern. MATERIALS AND METHODS: This cross-sectional study was conducted from December 2012 to May 2013 in teaching hospitals in Shiraz...
February 2016: Iranian Journal of Microbiology
Seyed Soheil Ghaemmaghami, Mehrdad Modirsaneii, Ali Reza Khosravi, Mehdi Razzaghi-Abyaneh
BACKGROUND AND OBJECTIVES: Unhygienic poultry feedstuffs can lead to nutrient losses and detrimental effect on poultry production and public health. In the present study, mycobiota and colony-forming units per gram in ingredients and finish poultry feed was evaluated with special reference to potentially mycotoxigenic fungi. MATERIALS AND METHODS: Eighty five samples of corn, soybean meal and poultry finished feed were collected from nine poultry feed factories located in three provinces i...
February 2016: Iranian Journal of Microbiology
Mohammad Ali Afshari, Masoomeh Shams-Ghahfarokhi, Mehdi Razzaghi-Abyaneh
BACKGROUND AND OBJECTIVES: Dermatophytes possess a wide array of virulence factors and various antifungal susceptibility patterns which influence their pathogenesis in humans and animals. The aim of this study was to evaluate antifungal susceptibility and keratinase and proteinase activity of 49 dermatophyte strains from the genera Microsporum, Trichophyton and Epidermophyton which were isolated from human cases of dermatophytosis. MATERIALS AND METHODS: Forty-nine dermatophyte strains isolated from clinical samples were cultured on general and specific culture media...
February 2016: Iranian Journal of Microbiology
Fatemeh Yarian, Mojgan Bandehpour, Negar Seyed, Bahram Kazemi
BACKGROUND AND OBJECTIVE: Neisseria meningitidis is a leading cause of meningitis and sepsis worldwide. The factor H binding protein (fHBP) is a key virulence factor of Neisseria meningitidis that is able to selectively bind to human factor H, the key regulator of the alternative complement pathway, which it has important implications for meningococcal pathogenesis and vaccine design. The aims of present research were cloning, expression, purification of fHbp and confirmation of the interaction between serum factor H (fH) and produced factor H binding protein...
February 2016: Iranian Journal of Microbiology
Yeganeh Talebkhan, Tannaz Samadi, Armin Samie, Farzaneh Barkhordari, Mohammad Azizi, Vahid Khalaj, Esmat Mirabzadeh
BACKGROUND AND OBJECTIVES: During past decades Hansenula polymorpha has attracted global attention for the expression of recombinant proteins due to its high growth rate, minimal nutritional porequirements and use of methanol as a low cost inducer. MATERIALS AND METHODS: The corresponding nucleotide sequences for the expression of heterologous genes in Hansenula poylmorpha were extracted and assembled in an E. coli vector. The constructed expression cassette included formate dehydrogenase promoter (pFMD), a secretory signal sequence, a multiple cloning site (MCS) and methanol oxidase (MOX) terminator...
February 2016: Iranian Journal of Microbiology
Arezoo Tahmourespour, Nooroldin Tabatabaee, Hossein Khalkhali, Imane Amini
BACKGROUND AND OBJECTIVES: Tannins are toxic polyphenols that either bind and precipitate or condense proteins. The high tannin content of some plants is the preliminary limitation of using them as a ruminant feed. So, the aim of this study was the isolation and characterization of tannic acid degrading bacterial strains from goat feces before and after feeding on Pistachio-Soft Hulls as tannin rich diet (TRD). MATERIALS AND METHODS: Bacterial strains capable of utilizing tannic acid as sole carbon and energy source were isolated and characterized from goat feces before and after feeding on TRD...
February 2016: Iranian Journal of Microbiology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"