objectives: in present study we aimed to clone the lux i gene encoding n-acyl-homoserine synthase detected in biofilm forming 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 lux i gene w...

sodium/proton exchangers (nhx) are key players in plant responses to salinity and have a central role in establishing ion homeostasis. nhxs can be localized in tonoplast or plasma membranes, where they exchange sodium ions for protons, resulting in the removal of ions from the cytosol into vacuole or extracellular spaces. in the present study, the expression pattern of the gene encoding na+/h+ ...

increment. it is categorized based on genetic aberrations. some of these genetic disorders can determine minimal residual diseases (mrd) and prognosis of aml patients. wilms tumor (wt1) over expression is found in aml patients. the aim of this study was to determine the frequency of wt1 over expression in aml pediatric cases in north -east of iran. materials and methods: this retrospective stud...

introduction: calcium/calmodulin-dependent protein kinase ii (camkii) is highly expressed in the hippocampus, which has a pivotal role in reward-related memories and morphine dependence. methods: in the present study, morphine tolerance was induced in male wistar rats by 7 days repeated morphine injections once daily, and then gene expression profile of α-isoform of camkii (camkiiα) in the hipp...

accurate and rapid diagnosis of human cytomegalovirus (hcmv) disease in immunocompromised patients has remained as a challenge. quantitative competitive pcr (qc-pcr) methods for detection of hcmv in these individuals have improved the positive and negative predictive values of pcr for diagnosis of hcmv disease. in this study we used qc-pcr assay, using a co-amplified dna standard, to quantitate...

Understanding biological complexity arising from patterns of gene expression requires accurate and precise measurement of RNA levels across large numbers of genes simultaneously. Real time PCR (RT-PCR) in a microtiter plate is the preferred method for quantitative transcriptional analysis but scaling RT-PCR to higher throughputs in this fluidic format is intrinsically limited by cost and logist...

can assess the safety of biotechnology products. Q-PCR precisely quantifies the amount of the nucleic acid target sequence in DNA or RNA extracted from a variety of samples including animal tissues, final products, cell banks, chromatography eluates, and bulk harvest material. During amplification with target-specific oligonucleotide primers, a fluorogenic oligonucleotide probe — with both repo...