catalytic osmylation of cis and trans 2-cyclohexene-cyclohexanol (1a) and (1b) are carried out in the presence of n-methyl morpholine-n-oxide. under the same conditions, only the cis isomer reacted, leading to triol (3). the steric hindrance of the equatorial oh group probably prevents the trans isomer from entering into such reaction. triol (3) was also obtained from the reduction of the diol-...

a general synthetic route for the synthesis of 1,2-dihydro-1-aryl-naphtho[1,2-e][1,3]oxazine-3-one derivatives has been developed using perlite-so3h nanoparticles as efficient catalyst under both microwave-assisted and thermal solvent-free conditions. the combination of 2-naphthol, aldehyde and urea enabled the synthesis of 1,2-dihydro-1-aryl-naphtho[1,2-e][1,3]oxazine-3-one derivatives in the ...

the present study aimed to evaluate the protective effect of gallic acid on gastric mucosal lesions caused by ischemia-reperfusion (i/r) injury in rat. forty male rats were randomly divided into sham, control (i/r injury) and three gallic acid-pretreated groups. to induce i/r lesions, the celiac artery was clamped for 30 min and then the clamp was removed to allow reperfusion for 6 hr. pretreat...

background: to perform screening for colonic cancer and to diagnose other colic diseases, colonoscopies are required. comfort of patient during colonoscopy is very important. currently, there are two types of sedation used during colonoscopy-the general anesthesia and sedoanalgesia. sedo-analgesia is the most frequently used type of sedation employed during colonoscopy worldwide. materials and ...

background: exercise has positive and negative effects on immune system. herein, we would like to investigate the effects of incremental aerobic training and fish oil supplementation on the plasma levels of crp, cpk and il-17 in trained mice. one of the major roles of immune system is to produce soluble or cellular components that provide the immunity against inflammatory agent. the purpose of ...

background and objective: production of polyhydroxyalkanoate copolyesters consisting of 3-hydroxybutyrate and 3-hydroxyvalerate units was for the first time studied using the production strain hydrogenophaga pseudoflava based on sustainable raw materials. this strategy provides for increased cost efficiency in pha production and in enhanced material quality. material and methods: as a particula...

objective(s): lupus nephritis (ln) is the main cause of mortality and disability in systemic lupus erythematosus (sle) patients. therefore, utilizing a reliable and non-invasive method for serial measurements of renal function seems to be necessary. the aim of this study was to evaluate the role of urinary lipocalin-2 as a biomarker of renal involvement in sle patients.   materials and methods:...

background: the cuprizone multiple sclerosis (ms) animal model is characteristic for toxic demyelination and represents a reversible demyelination and remyelination system. it has been shown that green tea epigallocatechin-3-gallate (egcg) might be effective in improving the symptoms and pathological conditions associated with autoimmune inflammatory diseases in several animal models. objective...