نتایج جستجو برای: mitotic counts
تعداد نتایج: 91695 فیلتر نتایج به سال:
Background: Most of the cytogenetic dosimetry, except Premature Chromosome Condensation assay, saturates at 6 Gy. Present studies are aimed to assess feasibility of simple CB-MN assay for prescreening of high dose accidental exposures. Materials and Methods: Human peripheral blood lymphocytes from two donors were gamma irradiated to different doses ranging from 0-15Gy, cultured for 72 h. Cytoch...
phytohemagglutinin (pha) is a lectin, obtained from the red kidney bean that binds to the membranes of t-cells and stimulates metabolic activity, cell division, etc. the object of this research was the comparison between self made pha (indigenous) and imported commercial one, following conventional and high resolution cell synchronization technique (hrcs) .from each blood sample of healthy indi...
STUDY QUESTION Do different chemotherapy drugs exert the same magnitude of cytotoxicity on dormant primordial follicles and the growing follicle fraction in the ovary in vivo and on mitotic non-luteinized and non-mitotic luteinized granulosa cells in vitro? SUMMARY ANSWER Cyclophosphamide (alkylating agent) and cisplatin (alkylating like) impacted both primordial and pre-antral/antral follicl...
itp is an autoimmune blood disorder in which platelet destruction is mediated by anti-platelet antibodies. the mechanisms of anti-platelet antibodies development are still a little known. the rate of some bacterial or viral agents in cause of itp is well known. recently, some study proposed that h pylori infection may be associated with itp and h pylori eradication can improves platelet counts ...
Chinese hamster cells in the mitotic and G(1) phases of the growth cycle were incubated for 30 or 60 min in suspension tissue culture and pulse-labeled with tritiated uridine. After appropriate chases, washes, and extractions, it was found that all incorporation into the nucleic acid may be accounted for by those cells in interphase. An average of 410 counts was found for incorporation into the...
Comparison specular micrographs of infant and adult corneas from cats, cows, dogs, rabbits, and humans demonstrate that a large decrease in central endothelial cell density occurs during maturation of the cornea. Central endothelial cell counts of developing cat, dog, and rabbit corneas decrease rapidly during the first months of life. This rapid decline in endothelial cell density correlates w...
Abstract BACKGROUND The new WHO 2021 classification included CDKN2A/B loss and TERT mutation as criteria for Grade 3 meningiomas, but excluded H3K27me3 loss. Malignant behavior may be influenced by DNA methyltransferases (DNMT3A). SUFU mutations carry a predisposition multiple meningiomas. METHODS In this retrospective study, 228 patients with 2, or recurrent 1 meningiomas resections from 1990 ...
a study was conducted to evaluate the effects of two laying systems (floor versus cage) on egg production, egg quality, and microbial safety. one hundred and eighty 42 wk old laying hens were separated into two groups of 90 hens each, and housed in laying cages and a floor laying system. eggs from the hens were collected for 2 weeks, and hen-day egg production, egg quality (whole egg, albumen, ...
background: diagnosis and management of malnutrition in hiv- infected children is important as it is both a manifestation as well as an independent risk factor for death. extent in hilly poor outreach areas of north india has been poorly studied. aim: to study the prevalence of malnutrition among children with hiv/aids using who z- score and indian academy of pediatrics (iap) method and effect...
background: gastrointestinal stromal tumors (gists) constitute the majority of gastrointestinal mesenchymal tumors. they usually express a proto-oncogen protein called cd117 detected by immunohistochemistry. this study investigated the differentiation of gists as well as the risk of aggressive behaviors in gists from surgically-treated patients in university affiliated hospitals. methods: the...
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