laurus nobilis l. (sweet laurel) is one of the volatile oil bearing plants of lauraceae family. it is cultivated in different parts of iran and its leaves and fruits have been used in food, cosmetics and pharmaceutical industries. there are a few reports about the effects of some environmental conditions on the quality and quantity of laurel volatiles. the goal of our work was to search the sea...

in this study, a simple and low-cost method was developed for extraction and pre-concentration of brilliant blue(bb) and tropaeolin o(to) in food samples using cloud point extraction (cpe) prior to spectrophotometric determination. the effects of main factors such as ph, surfactant and salt concentrations, incubation time and temperature on the cloud point extraction of both dyes were investiga...

in this scientific research, magnesium oxide (mgo) nanoparticles were synthesized from magnesium nitrate and ammonium solutions via microwave@sol-gel process. the structure and the morphology of the synthesized nanoparticles has been identified and characterized by x-ray diffraction (xrd), n2-bet (brunauer-emmett-tell), scanning electron microscopy (sem) and fourier transform infrared (ftir) te...

objective(s):hypoxia induces cellular oxidative stress that is associated with neurodegenerative diseases. here, the protective effects of ferulic acid (fa) on hypoxia-induced neurotoxicity in pc12 cells were evaluated. materials and methods:we investigated the effect of fa on pc12 cells subjected to hypoxia stress, in vitro. results:fa increased cell viability, prevented membrane damage (ldh r...

introduction: cardiac preconditioning represents the most potent and consistently reproducible method of rescuing heart tissue from undergoing irreversible ischemic damage. the aim of the present study was to evaluate oxytocin (ot) induced cardioprotection and its signaling pathways on lactate dehydrogenase (ldh) and creatine kinase-mb isoenzyme (ck-mb) in the anesthetized rats. methods: eighty...

objective : the purpose of this study was to determine the construct validity and reliability of the two forms of the persian version of the difficulties in emotion regulation scale (ders-6 & ders-5-revised) in a clinical sample. methods : the clinical sample consisted of 181 patients diagnosed with functional gi disorders (fgid) who referred to the digestive psychosomatic clinic in isfahan in ...

sertoli cells are an essential group of cells in seminiferous epithelium which provide nutritional and structural supports for spermatogenic cells via cell junctions. in this study, the gene expression of connexin-43, the most abundantly distributed gap junction protein of cells, was investigated in ram sertoli cells under mild and severe heat stresses with real-time quantitative pcr. sertoli c...

1,3-dipolar cycloaddition reaction of 1 mol or 2 mol of dibenzalaceton with 1 mol of non-stabilized azomethinylides generated in situ by decarboxylative condensation of isatin and proline or sarcosine give the novel new spiro-oxindolo(pyrrolizidines/ pyrrolidines) instead of bis-spirooxindolo( pyrrolizidines/ pyrrolidines).