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Iranian Journal of Microbiology

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https://www.readbyqxmd.com/read/29296276/preparation-of-transgenic-iranian-lizard-leishmania-coding-hil-12
#1
Tahereh Donyavi, Mojgan Bandehpour, Bahram Kazemi
Background and Objectives: Leishmania are intracellular flagellate protozoan parasites cause a wide spectrum of clinical manifestations in human. The immunological basis for resistance against leishmaniasis depends on Thl responses in the course of performance of cytokines like IL-12. In this study, a transgenic Leishmania coding human IL-12 was produced that can be used in Leishmanization. Materials and Methods: A fragment of Iranian lizard Leishmania (I.L.L) gene, named Cysteine Peptidase C (CPC), was amplified separately as two parts with PCR reaction...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296275/consortium-inoculum-of-five-thermo-tolerant-phosphate-solubilizing-actinomycetes-for-multipurpose-biofertilizer-preparation
#2
Arusha P Nandimath, Dilip D Karad, Shantikumar G Gupta, Arun S Kharat
Background and Objectives: Alkaline pH of the soil facilitates the conversion of phosphate present in phosphate fertilizer applied in the field to insoluble phosphate which is not available to plants. Problem of soluble phosphate deficiency arises, primarily due to needless use of phosphate fertilizer. We sought to biofertilizer with the thermo-tolerant phosphate solubilizing actinomycetes consortium that could convert insoluble phosphate to soluble phosphate at wider temperature range...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296274/the-role-of-zoonotic-chlamydial-agents-in-ruminants-abortion
#3
Sara Barati, Naghmeh Moori-Bakhtiari, Masoud Ghorbanpoor Najafabadi, Hassan Momtaz, Leili Shokuhizadeh
Background and Objectives: Enzootic abortion of ewes (EAE) is caused by infection of sheep and goats by Chlamydia abortus bacterium. Chlamydial abortion in bovine could occur by Chlamydia abortus, Chlamydia psittaci and Chlamydia pecorum. C. psittaci is the causative agent of psittacosis or ornithosis disease in humans and birds. It also causes acute pneumonia in cattle and sheep. The present study aimed at surveying the role of chlamydial agents in ruminants abortion. Materials and Methods: A total of 117 aborted material samples (Cotyledon, liver, spleen, and abomasal contents of fetus) from 9 cattle and 100 sheep in Shahr-e-Kord and 8 sheep from Bagh-e-Malek were collected from different herds with abortion history during the lambing periods from 2014 to 2016...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296273/new-delhi-metallo-%C3%AE-lactamase-1-producing-klebsiella-pneumoniae-isolates-in-hospitalized-patients-in-kashan-iran
#4
Farzaneh Firoozeh, Zeinab Mahluji, Ehsaneh Shams, Ahmad Khorshidi, Mohammad Zibaei
Background and Objectives: New Delhi metallo-ß-lactamase (NDM) is a newly emerging metallo-ß-lactamases, which can destroy all β-lactams including carbapenems. Therefore, this study aimed at evaluating New Delhi metallo-ß-lactamase-1-production in clinical isolates of Klebsiella pneumoniae in Kashan, Iran. Materials and Methods: In a cross-sectional study, 181 K. pneumoniae isolates were collected from clinical samples of patients, who referred to Shahid Beheshi hospital in Kashan during November 2013 and October 2014...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296272/a-study-of-prevalence-of-shigella-species-and-antimicrobial-resistance-patterns-in-paediatric-medical-center-ahvaz-iran
#5
Roya Nikfar, Ahmad Shamsizadeh, Marjan Darbor, Soheila Khaghani, Mina Moghaddam
Background and Objectives: Shigella infections are one of the major causes of diarrhea worldwide, and especially in developing countries. Antimicrobial resistance has complicated the empirical treatment. The aim of this study was to define the clinical and antibiotic resistance patterns of Shigella gastroenteritis cases. Materials and Methods: Stool samples of patients with diarrhea and fever diagnosed with shigellosis were collected, from June 2013 to May 2014 at Abuzar Hospital, Iran...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296271/epidemiologic-analysis-of-central-vein-catheter-infection-in-burn-patients
#6
Maryam Roham, Mahnoush Momeni, Mohsen Saberi, Rahil Kheirkhah, Ali Jafarian, Hossein Rahbar
Background and Objectives: Currently, there are no well-defined guidelines or criteria for catheter-site care in burn patients, and there is little information about the epidemiology of central vein catheter (CVC) infection in such patients. This study aimed at addressing the epidemiological aspect of CVC infection in a sample of Iranian burn patients admitted to the largest referral burn center in Iran, Motahari Burn Center. Materials and Methods: A total of 191 burn patients were eligible for the study...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296270/phenotypic-and-genotypic-characterization-of-macrolide-resistance-among-staphylococcus-aureus-isolates-in-isfahan-iran
#7
Hossein Sedaghat, Bahram Nasr Esfahani, Sina Mobasherizadeh, Azhar Sallari Jazi, Mehrdad Halaji, Parisa Sadeghi, Mohammad Emaneini, Seyed Asghar Havaei
Background and Objectives: Macrolide, lincosamide and streptogramin B (MLS B) are noteworthy antibiotics for the treatment of Staphylococcus aureus infections. The purpose of this study, was to determine the phenotypic and genotypic characterization of macrolide resistance, among S. aureus, isolated from clinical samples and nasal swabs. Materials and Methods: Totally, 162 non-duplicate S. aureus isolates were collected from clinical samples and nasal swabs, from patients and healthcare workers (HCWs), between March 2016 and September 2016, at four teaching hospitals in Isfahan...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29296269/clinicomicrobiological-spectrum-of-infective-endocarditis-from-a-tertiary-care-centre-in-south-india
#8
Kanne Padmaja, Sukanya Sudhaharan, Lakshmi Vemu, Oruganti Sai Satish, Padmasri Chavali, Mamidi Neeraja
Background and Objectives: Infective endocarditis (IE) is a microbial infection of the endothelial surface of the cardiac-valves. Rapid diagnosis, effective treatment and prompt recognition of complications are essential, in order to improve the outcome. We retrospectively reviewed and determined the clinical characteristics, microbiological profile and management strategies of IE cases, changing microbial spectrum of pathogens and outcome in Native Valve Endocarditis (NVE) and Prosthetic Valve Endocarditis (PVE) cases...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238461/cloning-expression-and-purification-of-a-polytopic-antigen-comprising-of-surface-antigens-of-toxoplasma-gondii
#9
Abbas Alibakhshi, Mojgan Bandehpour, Bahram Kazemi
Background and Objectives: Polytopic antigens are recently applied for replacing crude antigens, for control of infectious agents. The surface of the Toxoplasma is covered with immunogenic antigens namely surface antigens (SAGs). These antigens possess several immunogenic epitopes, inducing immune responses. Materials and Methods: In this study, a DNA construct comprising of sequences encoding epitopes from SAG1, 2 and 3 was designed and cloned into pET28a expression vector and subsequently expressed and purified, using Ni-NTA column...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238460/synthetic-peptides-mimicking-lipopolysaccharide-as-a-potential-vaccine-candidates-against-vibrio-cholerae-serogroup-o1
#10
Fatemeh Mohammad Pour Ghazi, Seyed Latif Mousavi Gargari
Background and Objectives: Cholera is a life-threatening diarrhea caused mainly by Gram-negative marine habitant Vibrio cholerae serogroup O1. Cholera vaccination is limited mainly to developed countries, due to the cumbersome and expensive task of vaccine production. In the present work, the aim was to study the immunogenicity of the synthetic mimotopes through two different routes of injection and oral administration. Lipopolysaccharide (LPS) is one of the immunogenic components in Gram-negative bacteria, which cannot be used as a vaccine candidate, due to its high toxic effect...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238459/isolation-and-characterization-of-probiotics-from-dairies
#11
Babak Haghshenas, Yousef Nami, Ali Almasi, Norhafizah Abdullah, Dayang Radiah, Rozita Rosli, Abolfazl Barzegari, Ahmad Yari Khosroushahi
Background and Objectives: Probiotics are live microorganisms, which show beneficial health effects on hosts once consumed in sufficient amounts. LAB group can be isolated and characterized from traditional dairy sources. This study aimed at isolating, identifying, and in vitro characterizing (low pH/high bile salt tolerance, antibacterial activity, and antibiotic susceptibility) LAB strains from traditional Iranian dairy products. Materials and Methods: Isolated strains were identified by Gram staining, catalase assay, and 3 molecular identification methods; namely, (GTG) 5-PCR fingerprinting, ARDRA, and 16S rDNA gene sequencing...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238458/bacteriocinogenic-potential-and-virulence-traits-of-enterococcus-faecium-and-e-faecalis-isolated-from-human-milk
#12
Soodabeh Khalkhali, Naheed Mojgani
Background and Objectives: Human milk is a continuous supply of Lactic Acid bacteria (LAB), including enterococci with probiotic potentials. The aim of this study was to analyze two Enterococcus species, isolated from human milk for their probiotic potential, bacteriocin producing ability and virulence traits. Materials and Methods: Enterococcus faecium TA0033 and E. faecalis TA102 were tested for acid and bile tolerance, survival in simulated gastric and intestinal conditions...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238457/molecular-detection-of-bordetella-holmesii-in-two-infants-with-pertussis-like-syndrome-the-first-report-from-iran
#13
Masoumeh Nakhost Lotfi, Vajiheh Sadat Nikbin, Omid Nasiri, Farzad Badmasti, Fereshteh Shahcheraghi
Background and Objectives: Bordetella holmesii is associated with a pertussis-like respiratory syndrome in healthy individuals and also a rare cause of septicaemia, endocarditis, pneumonia, and septic arthritis, mostly in immunocompromised patients. Culture technique and real-time PCR are 2 methods used to detect Bordetella spp. Materials and Methods: In this study, 435 nasopharyngeal specimens of patients with suspected whooping cough were checked for the presence of B...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238456/seroepidemiological-study-of-q-fever-in-lorestan-province-western-iran-2014
#14
Mohammad Hassan Kayedi, Hamid Mokhayeri, Mehdi Birjandi, Ali Chegeni-Sharafi, Saber Esmaeili, Ehsan Mostafavi
Background and Objectives: Q fever is a zoonotic disease and farm animals serve as the main reservoir of the disease. The aim of this study was to evaluate the seroprevalence of Q fever in sheep, in Lorestan province in western Iran. Materials and Methods: In this cross-sectional study, 330 blood samples were collected from sheep, from each county in Lorestan province. The samples were tested by ELISA for the presence of immunoglobulin (IgG) against Coxiella burnetii...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238455/in-vitro-activity-of-recombinant-lysostaphin-in-combination-with-linezolid-vancomycin-and-oxacillin-against-methicillin-resistant-staphylococcus-aureus
#15
Nagalakshmi Narasimhaswamy, Indira Bairy, Gautham Shenoy, Laxminarayana Bairy
Background and Objectives: The antimicrobial combination with synergistic mechanism is recommended to provide broad-spectrum coverage, and prevent the emergence of resistant mutants. In the present study, the synergistic activity of lysostaphin with linezolid, oxacillin and vancomycin, against methicillin-resistant Staphylococcus aureus (MRSA) clinical isolates was determined. Materials and Methods: Seventy-three MRSA isolates collected from clinical specimens were tested, for in vitro synergistic activity of lysostaphin with linezolid, vancomycin and oxacillin, by checkerboard assay...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29238454/phenotypic-and-genotypic-features-of-first-biofilm-forming-nasopharyngeal-colonized-streptococcus-pneumoniae-isolates
#16
Seyed Fazlollah Mousavi, Bahman Mirzaei, Bahareh Shaghaghi, Pantea Jalali, Tahereh Setayesh, Seyed Hamid Moosavi
Background and Objectives: Designing control and therapeutic policies for antibiotic resistant Streptococcus pneumoniae, which is an important causative agent of several invasive and noninvasive infectious diseases and its carriage rates, has been described as the main target in World Health Organization (WHO). The present study was conducted to determine antibiotic resistance pattern, evaluate biofilm forming ability in S. pneumoniae isolates, and find the genetic relationship between cultured strains...
August 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29225759/seroprevalence-of-hepatitis-b-c-and-d-viral-among-hemodialysis-patients-in-tehran
#17
Davood Yadegarynia, Hossein Hatamai, Sara Rahmati Roodsari, Zahra Arab-Mazar
Background and Objectives: Different studies show that the prevalence of hepatitis viruses in hemodialysis (HD) patients is much greater than general population. It is important to be aware of local prevalence data, in order to control infections and prevention of nosocomial transmission. The aim of this cross-sectional study was to investigate the seroprevalence of hepatitis B, C, and D viral infections among HD patients. Materials and Methods: During 2016, a cross-sectional study was conducted in Tehran, among 360 HD patients from 5 hemodialysis centers...
June 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29225758/an-in-vitro-transcription-assay-for-development-of-rotavirus-vp7
#18
Shahram Jalilian, Ali Teimoori, Manoochehr Makvandi, Milad Zandi
Background and Objectives: Human rotavirus (RV) is responsible for most cases of acute gastroenteritis in infants, worldwide. Today, in vitro transcription (IVT) assay is widely used to develop efficient RNA for the biological experiments such as gene function analysis and reverse genetics. The aim of this study was to develop optimal full-length transcripts of the VP7 segment, using in vitro transcription assay. Materials and Methods: Special primers were designed in order to synthesize VP7 sequence of sense RNA in the process of IVT using T7 RNA polymerase...
June 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29225757/dengue-fever-in-a-south-asian-metropolis-a-report-on-219-cases
#19
Shiv Sekhar Chatterjee, Ankush Sharma, Shilpee Choudhury, Sushil Kumar Chumber, Ras Bage, Nittin Parkhe, Uma Khanduri
Background and Objectives: Yearly epidemics of Dengue fever occur post-monsoon in India's capital, Delhi. A prospective observational study was conducted during the outbreak months to understand the epidemiology and outcome of this infection and its economic impact. Materials and Methods: Febrile hospitalized (n=219) patients with dengue fever diagnosed by a combination of MAC-ELISA, GAC-ELISA and NS1Antigen-ELISA were enrolled. Epidemiologic (including economic) parameters, clinical, radiological and laboratory manifestations were noted and patients followed up over the period of hospital stay...
June 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29225756/prevalence-of-clostridium-difficile-and-its-toxigenic-genotype-in-beef-samples-in-west-of-iran
#20
Malihe Kheradmand, Somayeh Jalilian, Amirhooshang Alvandi, Ramin Abiri
Background and Objectives: Clostridium difficile is the leading cause of nosocomial diarrhea and pseudomembranous colitis. The prevalence of C. difficile infection differs in various geographical areas. The aim of this study was to determine the prevalence of C. difficile isolates and the prevalence of cdd3, tcdA and tcdB genes in beef samples in Kermanshah Province. Materials and Methods: One hundred ground beef samples were randomly collected from the butchers of Kermanshah province during March 2014 to March 2015...
June 2017: Iranian Journal of Microbiology
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