Fakhri Haghi
Department of Microbiology and Virology, Zanjan University of Medical Sciences, Zanjan, Iran
[ 1 ] - Effect of Subinhibitory concentrations of imipenem and piperacillin on transcriptional expression of algD and lasB genes in Pseudomonas aeruginosa
Sub Minimal Inhibitory concentrations (sub-MIC) of antibiotics, although not able to kill bacteria, can be effect on their physico- chemical characteristics and functions. This study aimed to investigate the effect of sub-MIC of imipenem and piperacillin on the transcriptional expression of virulence related genes algD and lasB in Pseudomonas auroginosa. Five clinical isolates of P. aeruginosa ...
[ 2 ] - شناسایی ژن‌های مولد فسفولیپاز و پیلی‌تیپ IV در ایزوله‌های بالینی سودوموناس آئروژینوزا با مقاومت چند دارویی
زمینه و هدف : سودوموناس آئروژینوزا باکتری فرصت‌طلب با عوامل بیماری‌زایی متعدد از جمله فسفولیپاز C و پیلی نوع IV است. از مشکلات عمده عفونت‌های سودوموناسی، مقاومت آنتی‌بیوتیکی آن است که اغلب درمان چنددارویی برای آن پیشنهاد می‌گردد. این مطالعه به منظور شناسایی ژن‌های مولد فسفولیپاز و پیلی‌تیپ IV در ایزوله‌های بالینی سودوموناس آئروژینوزا با مقاومت چند دارویی انجام شد. روش بررسی : این مطالعه توصیفی ...
[ 3 ] - Evaluation of Pertussis Toxin Expression in B2 and THIJS Media
Whole-cell pertussis vaccine (wP) has been imperative and highly effective in preventing childhood deaths due to pertussis. Pertussis toxin is one of the virulence factors of Bordetella pertussis in all available pertussis vaccines. wP production in Razi Vaccine and Serum Research Institute is according to bioreactor culture of B. pertussis strains in B2 medium. The aim ...
[ 4 ] - Direct Mutagenic Effects in Some Artificial Food Flavors Using Ames Test
Background and purpose: Nowadays, food flavorings are widely used in Iran in different food and beverage items without considering their potential threats. This research aimed at investigating directed mutagenesis caused by flavorings using the Ames Test. Materials and methods: Direct mutagenesis of five artificial food flavorings (vanilla, banana, orange, coconut, and lemon), from three diffe...
[ 5 ] - The Frequency of Staphylococcus aureus Classical Enterotoxin Genes in Raw Milk Samples in Zanjan, Iran
Background: Staphylococcus aureus is one of the major causes of food poisoning. Since milk is a nutritious source of proteins and vitamins, it could provide the optimal conditions for the growth of several bacterial pathogens, such as S. aureus. The present study aimed to assess the frequency of Staphylococcus aureus classical enterotoxin genes in raw milk samples in Zanjan, Iran. Methods: In ...
[ 6 ] - Multidrug-Resistant Strains of Acinetobacter baumannii from Intensive Care Unit Patients Show Genetic Diversity and Distribution of Genes Associated with Aminoglycoside Resistance
Background and Objective: As a significant cause of nosocomial infections, Acinetobacter baumannii has been linked to opportunistic infections. The assessment of clonal relatedness of A. baumannii isolates using typing methods like ERIC-PCR is beneficial for controlling conditions due to these resistant isolates. This research aims to study Acinetobacter baumannii resistant isolates to multidru...
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