background   objective:   materials and methods   results   conclusion   key words:   . vitrification, viability, in vitro maturation, gvbd, oocyte, mouse : these results suggest that step-wise vitrification of gvbd oocytes as compared to single step vitrification was better in the rate of survival and in vitro maturation of oocytes. : all non-vitrified oocytes were viable after 24 hr; however,...

objective: breast cancer is one of the leading causes of death in women worldwide. conventional treatments use cytotoxic drugs which have high numbers of side effects. currently pharmacologists are searching for novel drugs with fewer side effects and maximum efficiency as breast cancer treatment. the aim of the current study is to clarify the cytotoxicity effect of the recombinant outer membra...

background: astronauts will be exposed to both chronic space radiation and acute high doses of energetic radiation of solar particle events in long-term deep space missions. the application of radioprotectors in space missions has basic limitations such as their very short time window as well as their acute toxicity and considerable side effects. the aim of the present study was to investigate ...

the present study was conducted to evaluate the effect of parenteral supplementation of cobalt, copper and iron in late pregnancy on ewe hematology parameters and lamb vigour. twenty ewes were allocated to one of two groups (n=10). in the test group, on day 120 ofpregnancy, cobalt, copper and iron were injected at a dose of 0.1 ml/kg bw (fercobsang, france, cobalt gluconate 5 mg/100 ml, copper ...

the objectives of this paper were production of probiotic yoghurt using l. paracasei ssp. tolerans, and evaluation of ph changes, viable counts, and organoleptic properties of the produced yoghurt. it was observed that the ph decrease during the fermentation period was faster in the milk inoculated with l. paracasei ssp. tolerans plus starter culture. there was a gradual decrease in ph in both ...

objective(s) shark liver oil (slo) is an immunomodulator. macrophages play a key role in host defense against pathogens like fungi. candida albicans have mechanisms to escape immune system. we determined the effect of killed-candida on the in vitro viability of macrophages and the effect of slo on augmentation of this potency. materials and methods peritoneal macrophages were separated and cult...

to study the effects of post-stripping oocyte ageing at low temperatures on the viability of kutum (rutilus kutum) oocytes, unfertilised eggs of five females were stored in ovarian fluid at temperatures of 4 and 7 degree centigrade for 24 hours post stripping (hps). the stored ova of five female kutum were separately fertilised at 0 (i.e., control eggs fertilised prior to storage), 4, 8, 12, 16...

background: ß-carbolines, harmaline and harmine, are the major alkaloids presenting in the seeds of the peganum harmala l. these alkaloids are known as herbal active principals with potential use in pharmaceutical and medicine. objectives: to assess the growth inhibitory effect of phyto-alkaloids, harmaline and harmine, on cancer cell lines. methods: the p. harmala l.’s alkaloids were extracted...

background: zinc has significant effects on structural and functional activities of many proteins and enzymes involved in biological activities, especially the regulation of immune-system. symptoms of zinc toxicity include nausea/vomiting, fever, cough, diarrhea, fatigue, neuropathy, and dehydration. further signs include growth retardation, altered iron function, anemia, copper deficiency, dec...

parthenolide is major sesquiterpene lactones present in anthemis haussknechtii boiss. & reut. (feverfew). this compound has many effects on different disease such as migrain and cancer. parthenolide was reported from tanacetum parthenium (l.) sch.bip. but other plants of asteraceae family could contain parthenolide. in this study parthenolide was extracted and identified with two methods, fouri...