background: this study aimed to evaluate the role of efflux pump regulator and oxa-23 genes in imipenem resistance acinetobacter baumannii strains isolated from hospitalized patients in tehran, iran. methods: this study was conducted on 60 a. baumannii isolates collected from patients admitted to the shahid motahari and taleghani hospitals in tehran during 2013-14. antibiotic susceptibility tes...

background: it has been reported that vitamin d has broad anti-inflammatory and immunomodulatory effects. objective: to evaluate the effects of vitamin d on the expression of il-27 and il-33 in a model of experimental autoimmune encephalomyelitis (eae). methods: eae was induced in c57bl/6 mice by immunization with myelin oligodendroglial glycoprotein mixed with complete freund's adjuvant. ...

background: introducing rctm (research-centered teaching method) by the author, showed the method provokes enthusiasm and anxiety, correlated with cognition . by linking the broaden-and-build theory and emotional intelligence theory, it becomes apparent that the knowledge and use of positive emotions constitute an important skill set for effective functioning. purpose: to investigate the effect...

sulfonamides are the first effective chemotherapeutic agents used for several years to cure or prevent systemic bacterial infections. in addition, this agents showed anti-carbonic anhydrase and cause cell cycle perturbation in the g1 phase, disruption of microtubule assembly, suppression of the transcription activator nf-y, angiogenesis and matrix metalloproteinase (mmp). in recent years, novel...

the aim of the present research was to study the effect of different concentrations of rosemary (rosmarinus officinalis l.) extract, (0, 10, 12.5, 16.6, 25 and 50) mg/l added to semen extender, on sperm qualitative and quantitative parameters after freezing-thawing process of rooster sperm. 10 ross strain rooster were used. semen samples were collected, 2 times a week. after adding the samples ...

platelet aggregation beta amyloid main causes inflammation of neurons in alzheimer’s disease. in fact, creating this inflammation due to inappropriate actions in blood brain barrier (bbb) and astrocyte and microglia during the last century that studies conducted in this case nothing has been found. the only thing that can be done to prevent and reduce pro-inflammatory factors such as cytokines ...

background: variations in cytotoxic t lymphocyte antigen-4 (ctla-4) affect the expression and function of this protein. objective: we aimed to investigate the association of +49 a/g (rs231775), +1822 c/t (rs231779) and +6230 a/g (ct60, rs3087243) genetic variations, as well as the merged haplotypes in ctla-4 gene with susceptibility to, or progression of head and neck cancer. methods: eighty pa...

normal 0 false false false en-us x-none ar-sa background: alzheimer's disease (ad) is a progressive neurodegenerative disease in which endothelial cell (ec) can be affected. in brain, functional changes in ecs contribute to reductions in resting blood flow. furthermore, angiotensin-converting enzyme inhibitors (ace-i) have beneficial effects on endothelial dysfunction. this is the first study t...