it has been reported that different species of euphorbia (euphorbiaceae) have antitumor activity. some reports also show that these plants have potential cytotoxic effect against different cell lines. in a program to screen the cytotoxicity of iranian native plants, euphorbia macroclada boiss. was collected, identified, and the cytotoxic activity of dichloromethane, ethylacetate, methanol extra...

Next-to-leading order QCD corrections to the width difference ∆Γ in the B s-meson system are presented. I further discuss how ∆Γ can be used to detect new physics. b s s b u,c,t u,c,t W W b s s b W W u c t u c t Figure 1: Lowest order contribution to B s −B s mixing in the Standard Model.

conclusions the results revealed a significant relationship between the gg genotype of ctla-4 and the increased risk of tb. results data analysis indicated that the frequencies of aa, ag and gg genotypes were 42%, 38%, and 20% in patients with tb and 43%, 47%, 1% in the control subjects, respectively. the gg genotype of ctla-4 (+49a/g) showed a significantly increased risk of disease (or = 20.4...

conclusions association with sex, genotype and clinical symptoms revealed that the pre-s1 orf deletion occurred in 40% , 40%,and 20% of genotypes b,c, and d respectively, and 80% of the female population, of which all but one were diagnosed with chronic hepatitis b. additionally, several mutations were found in the bcp region with the following incidence rate; c1653 t (8.6%), a1752 g (10.8%),17...

background poly 3-hydroxybutyrate (phb), a class of poly hydroxyalkanoates (phas), is a group of bacterial storage polymers, produced by various microorganisms in response to nutrient limitation. phas are biodegradable polymers which could be a good substitute for current petrochemical plastics. phb has been synthesized during three enzymatic steps including three genes. objectives our aim was ...

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...