Horieh Saderi
Molecular Microbiology Research Center, Shahed University, Tehran, Iran
[ 1 ] - Isolation of indigenous Glutathione producing Saccharomyces cerevisiae strains
Background: Glutathione (GSH) is a non-protein thiol compound, which plays an important role in the response to oxidative stress and nutritional stress. The aim of this study was to isolate indigenous S. cerevisiae strains capable of effectively produce GSH. Methods: One hundred-twenty sweet frui...
[ 2 ] - Relation between Resistance to Antipseudomonal β-Lactams and ampC and mexC Genes of Pseudomonas aeruginosa
Background: In order to select a better antibiotic choice for treatment of Pseudomonas aeruginosa infections, this study was conducted to determine the frequency of resistance to some antipseudomonal β-lactams in P. aeruginosa isolates from patients in Tehran, Iran. In addition, the relation between presence of genes known to be responsible for resist...
[ 3 ] - Detection of Multidrug Resistant (MDR) and Extremely Drug Resistant (XDR) P. Aeruginosa Isolated from Patients in Tehran, Iran
Background: This study was done to detect multidrug resistant (MDR) and extremely drug resistant (XDR) of Pseudomonas aeruginosa among strains isolated from patients in Tehran, Iran, due to importance of these phenotypes in treatment of human infections. Methods: Eighty eightP. aeruginosa were isolated from patients in Tehran, Iran, and identified by routine...
[ 4 ] - Presence of Cytomegalovirus in Sinunasal Mucosa of Patients with Chronic Sinusitis and Without Sinusitis
Background and Objective: Sinusitis is one of the most common hygienic problems and a large part of the budget has been allocated to its diagnosis and treatment yearly. In this study, the presence of cytomegalovirus in sinuses of patients, undergone operation for treatment, with or without sinusitis, was studied. Materials and Methods: This study was an applied and case-co...
[ 5 ] - Prevalence of Macrolide-Lincosamide-Streptogramin B (MLSB) Resistance in S. aureus Isolated from Patients in Tehran, Iran
Background and Objectives: Staphylococcus aureus is an important cause of nosocomial and community-acquired infections in every region of the world. Clindamycin is one of the alternative agents used to treat S. aureus infections and accurate identification of clindamycin resistance is important to prevent therapeutic failure. Unfortunately, inducible clindamycin resistance is ...
[ 6 ] - Susceptibility To Vancomycin In Staphylococcus Aureus Isolated From Patients Of Four University-Affiliated Hospitals In Tehran
Background and Objective: Vancomycin is frequently the antibiotic of choice for the treatment of infections caused by methicillin-resistant Staphylococcus aureus (MRSA). For the last years, the incidence of vancomycin-intermediate S. aureus (VISA) and vancomycin-resistant S. aureus (VRSA) has been increased in various parts of the world. The present study ...
[ 7 ] - Detection Of Methicillin Resistance In Staphylococcus Aureus By Disk Diffusion And PCR Methods
Background and Objective: Methicillin resistance in Staphylococcus aureus is an increasingly important clinical problem. A chromosomal gene, mecA, mediates resistance to penicillinase-resistant penicillins such as methicillin and oxacillin in Staphylococcus aureus. We evaluated the validity of disk diffusion test by using oxacillin, methicillin an...
[ 8 ] - Drug resistance of isolated strains of Pseudomonas Aeruginosa from burn wound infections to selected antibiotics and disinfectants
Background and Objectives: Infection is the most common problem following burn injury. Selection and dissemination of intrinsic and acquired resistance mechanisms increase the probability of burn wound colonization by resistant species including Pseudomonas aeruginosa. Multi-drug resistant Pseudomonas ae...
[ 9 ] - Investigation of Helicobacter Pylori in the mucosa of sinuses of patients with chronic sinusitis
Objective: To investigate the presence of Helicobacter pylori in sinonasal mucosa of patients with chronic sinusitis Design: A prospective case-control study Materials and methods: Mucosal specimens were collected from the mid-third middle meatus and lateral side of mid-cornea. H. pylori has been investi...
[ 10 ] - اثر عصاره مایع رویی کشت و لیز سلولی مخمر پروبیوتیک ساکارومایسس سرویزیه بر تولید بیوفیلم و آلژینات در سودوموناس آئروژینوز
زمینه و هدف : سودوموناس آئروژینوزا با استفاده از فاکتورهای بیماری زای متعدد یک پاتوژن فرصت طلب برای انسان می باشد . سودوموناس آئروژینوزا ظرفیت های قابل توجهی به مقاومت در برابر آنتی بیوتیک ها را نشان می دهد . در این مطالعه به بررسی اثر لیزات و مایع رویی کشت ساکارومایسس سرویزیه بر تولید بیوفیلم و آلژینات پرداخته شده است. مواد و روش‌کار: ابتدا عصاره مایع رویی کشت و نیز محلول لیز سلولی از سویه ب...
[ 11 ] - بررسی اثر ضدمیکروبی ساکارومیسس سرویزیه علیه انتروتوکسیژنیک و انتروهموراژیک اشریشیاکلی
زمینه و هدف: پروبیوتیک‌ها میکروارگانیسم‌هایی سودمند برای سلامتی جوامع هستند. ساکارومیسس سرویزیه یکی از گونه‌های استفاده‌شده در بهبود کارکرد و درمان بیماری‌های دستگاه گوارش و مهار پاتوژن‌های روده‌ای است. پاتوتایپ‌های انتروهموراژیک اشریشیاکلی (EHEC) و انتروتوکسوژنیک (ETEC) دو بیماری‌زای روده‌ای شایع در جهان هستند که سبب اسهال می‌شوند. هدف این مطالعه، بررسی اثر ضدمیکروبی عصاره مایع رویی کشت و لیز...
[ 12 ] - Inhibitory Effect of Supernatant and Lysate of Saccharomyces cerevisiae on Expression of exoA Gene of Pseudomonas aeruginosa
Background and Aim: Pseudomonas aeruginosa is an important ubiquitous and especially common pathogen in the hospital. Exotoxin A that encoded by exoA gene has a role in pathogenesis of this bacterium. Today, probiotics are widely used in the treatment and prevention of diseases. The present study aimed to study the Saccharomyces cerevisiae S3 effect on the expression of exoA gene. Materials an...
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