نتایج جستجو برای: احیایin vitro
تعداد نتایج: 408043 فیلتر نتایج به سال:
این تحقیق با هدف جداسازی سویه های باکتریایی مقاوم به کروم و امکان سنجی استفاده از آنها در جهت پاکسازی محیط های آلوده به این فلز سرطانزا صورت گرفت. به این منظور نمونه گیری از معادن کروم سبزوار صورت پذیرفت. غربالگری این نمونه ها منجر به جداسازی 20 سویه ی مقاوم به کروم شد. برای شناسایی سویه ها از روش آنالیز مولکولی ژن 16s rdna استفاده شد و سپس این سویه ها در پایگاه ncbi به ثبت رسیدند. از این میان ...
فیتوپلاسماها گروهی از پروکاریوتهای غیر مارپیچی و بدون دیوارهی سلولیاند که در آوندهای آبکش گیاهان و همولنف حشرات وجود دارند. این موجودات تا به حال در شرایط in vitro کشت نشدهاند اما بر اساس توالیهای حفاظت شدهی آنها مشخص شده است که متعلق به رده مالیکوتها هستند و در جنس phytoplasma candidatus قرار گرفتند. برای بررسیهای عملی و مدیریت بیماریهای فیتوپلاسمایی لازم است فیتوپلاسماها در میزبانهای...
a study was conducted to investigate the effect of follicular size (small,
garlic, an antioxidant plant, can react with amino groups of proteins to form schiff bases. as diabetes leads to glycation of various proteins and this in turn has some effects on the structure of proteins and biochemical activity of them, the inhibition of this process seems very vital. for several years researchers in this field have done their best to recognize the antidiabetic compounds. th...
conclusions these results indicate that a. kellalensis extracts exert potent anti-rotaviral activity only after viral adsorption. the two extracts from a. kellalensis showed a good selectivity index. also these results suggest that extracts prepared from the flowers of a. kellalensis may be potential anti-rotaviral agents in vivo and be useful in veterinary medicine. background achillea kellale...
materials and methods the subjects included 27 male and 3 female patients with advanced chronic periodontitis. the mean age of the patients was 47.6 ± 2.0 years old. p. gingivalis was isolated from the samples and identified by various diagnostic tests, including gram staining, indol test, and fluorescent test. minimum inhibitory concentration (mic) of the essential oil against isolated p. ging...
background to current knowledge, different oocyte's recovery method and various seasons have profound impact on in vitro embryo production (ivep). objectives the aim of this study was to define an efficient recovery method for oocytes harvesting from slaughterhouse material in different seasons, and their effects on ivep yield. materials and methods ovaries from slaughtered ewes in breeding sea...
in a preliminary study carried out in a simple field laboratory in bandar-abbas, southern iran, five isolates of p. falciparum collected from the patients was cultured in rpmi 1640 medium with human serum in the tightly closed screw capped vials without any devised system for adjustment of co2 and o2 mixture. the same isolates were also cultured, simultaneously, in petri-dishes using jensen-tra...
background: vitrification has proven to be more effective than slow freezing methods to cryopreserve mammalian oocytes. the objectives of this study were to evaluate the effects of vitrification on immature and in vitro matured, denuded and cumulus compact goat oocytes and their subsequent fertilization. methods: oocytes were either cryopreserved as immature cumulus compact (imcc) (n=98 exp 1; ...
background: it is important to protect oocytes and embryos from oxidative stress in the culture medium. melatonin has been shown to be a direct free radical scavenger. objective: effect of melatonin during in vitro oocyte maturation, fertilization and embryo development of mouse oocytes was evaluated. materials and methods: oocytes from supper-ovulated mouse were divided to two groups: cumulus ...
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