نتایج جستجو برای: premature chromosome condensation

تعداد نتایج: 202062  

Journal: :iranian journal of radiation research 0
a. mahmoudzadeh emamchai novin medical radiation institute, tehran, iran h. mozdarani department of medical genetics, school of medical science, tarbiat modarres university, tehran, iran s. mohammadifrad novin medical radiation institute, tehran, iran

premature chromosome condensation (pcc) appears to have a possible utility for biological dosimetry purposes. the pcc technique may be adapted for cases of suspicion of overexposure where sampling is performed at least one day after an accident. for this purpose, human blood samples were exposed in vitro to 60co up to 10 gy and the pcc technique was performed immediately after irradiation. anal...

Journal: :international journal of reproductive biomedicine 0
sahar moghbelinejad hossein mozdarani zahra rezaeian

background: irradiation is one of the major causes of induced sperm dna damage. various studies suggested a relation between sperm dna damage and fertilization rate after intra-cytoplasmic sperm injection (icsi). objective: in this study, fertilization rate and premature chromosome condensation (pcc) formation after icsi of hamster oocytes with irradiated sperms from normal and oligosperm indiv...

ژورنال: سنجش و ایمنی پرتو 2020

Dose assessment of radiation victims is a key element in medical management of radiation accidents. At high radiation doses (> 6 Gy), dicentric assay lose its efficiency and premature chromosome condensation (PCC) assay was proposed to overcome the restrictions of dicentric assay. It was shown that PCC ring is more suitable and simpler than dicentric for biodosimetry in high radiation doses. In...

Journal: :Atlas of Genetics and Cytogenetics in Oncology and Haematology 2013

Journal: :Blood 1976
D M Williams C D Scott T M Beck

Premature chromosome condensation (PCC) has previously been observed in tissue culture and is believed to arise from asynchronous mitotic activity in multinucleated cells in which the affected nucleus is in interphase and at least one nucleus is in metaphase. Such cells have been noted following fusion induced by virus infection, spontaneously, and after treatment with cytochalasin B. The pheno...

Journal: :Cancer research 1974
W N Hittelman P N Rao

between the cytotoxic effects of these agents and the incidence of chromosome aberrations in the treated cells (2,4, 15). However, BLM treatment severely inhibits the progression of cells into mitosis. The probability that the extensively damaged cells might not be reaching mitosis makes it difficult to assay the chromosome damage accurately by the conven tional techniques. Recently, we have sh...

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