in this research, the microstructural of low molecular weight 1,2-polybutadiene (1,2-pbd) was conducted by 1h and 13c nuclear magnetic resonance spectroscopy (nmr) to determine the isomeric contents of 1,4-cis, 1,4-trans and 1,2-vinyl in 1,2-pbd polymer structures. number average molecular weight for low molecular weight 1,2-pbd was measured by nmr techniques and the results were compared with ...

leptospirosis is an acute infectious, systemic and septisemic disease which had recent outbreaks in some parts of iran especially in north provinces. rapid detection is a critical step for treatment and control of this disease. in this research a pcr based method was evaluated for detection of iranian local endemic serovars. all reported endemic serovars of leptospira including leptospira gripp...

nosema is a genus of microsporidia, which have significant negative impacts on honeybees. the aim of this study is the epidemiological evaluation and molecular characterization of nosema spices in various counties of east-azerbaijan province (northwest of iran). 387 samples were collected from colonies maintained in various counties of east-azerbaijan province. samples after preparation were...

interference with microtubule polymerization results in cell cycle arrest leading to cell death. colchicine is a well-known microtubule polymerization inhibitor which does so by binding to a specific site on tubulin. a set of 3',4'-bis (substituted phenyl)-4'h-spiro[indene-2,5'-isoxazol]-1(3h)-one derivatives with known antiproliferative activities were evaluated for their t...

conclusions the most frequent subtypes of hcv in iran were 1a, 3a and 1b, respectively. this frequency differed in various provinces of iran and fluctuated with time. it is important to determine the distribution of hcv genotypes in different geographical areas and its trend with time for epidemiological and patients’ management purposes. objectives the aim of this study was to estimate the ove...

background and objectives: a new real- time pcr protocol for the detection of trichomonas vaginalis in pooled urine samples has been optimized and validated. materials and methods: the amplification protocol, targeting a 2kb repeated gene in the t. vaginalis genome, was optimized by varying pcr parameters. as a reference method, a real-time pcr protocol targeting the beta-tubulin gene (y. versl...

iran is an important endemic focus area of cystic hydatid disease where several intermediate host species are commonly infected with echinococcus granulosus . annually, most livers are shipped out, stored away, or destroyed due to contamination among livestock. for instance, in aleshtar (lorestan province), liver and lung losses due to hydatid cysts during 2002-2003 were approximately 864,360,0...

our previous studies on thalassemia patients, homozygous or compound heterozygous for severe beta thalassemia mutations, has suggested that 5’hs4-lcr and/or xmn1-hbg2 backgrounds, which were linked in our thalassemia patients, are important in determining the blood transfusion dependency of these individuals. while the majority of patients with aa/-- 5’hs4/xmn1 background, were severely depende...

background hymenodictyon excelsum is a medicinal plant traditionally used for tumor treatment as it contains phytochemicals of anthraquinone and coumarin class. objectives the aim of the present study was to unfold the therapeutic value of selected phytocompounds of hymenodictyon excelsum in prostate cancer. materials and methods eight phytochemicals were selected based on the literature search...