نتایج جستجو برای: sex chromosome aberrations
تعداد نتایج: 329977 فیلتر نتایج به سال:
Two general types of clonal chromosome abnormality are observed in de novo acute myeloid leukemia (AML): the unbalanced aberrations with visible gain or loss of chromosome material and the balanced aberrations without such visible gain or loss. AML can be induced by therapy with cytostatic drugs and radiation. The alkylating agents reacting directly with DNA induce AML which often presents as m...
Phloxine is used as a food dye. In this study, genotoxicity of phloxine at the root tip Allium cepa L. was investigated. A. meristematic cells were treated with ten different doses phloxine. way, EC50 value determined. Then, applied to tips EC50/2, and EC50×2 doses. Treatment time determined 24, 48 72 hours. As result, it revealed that caused chromosomal aberrations in mitotic cycle cepa. There...
BACKGROUND Several studies have shown an increased frequency of constitutional chromosome aberrations in male and female partners of couples examined prior to ICSI. We conducted a cohort study to determine whether there was an increase in numerical sex chromosome mosaicism among couples undergoing ICSI compared with fertile couples. METHODS Cytogenetic investigations were performed in 228 fem...
background: the infertility is an important health problem, affecting about 15% of couples. the important role of genetic factors in pathogenesis of infertility is now increasingly recognized. the value of karyotyping women in the routine work-out of couples referred for sterility has long been recommended. objective: the aim of this study was to define the frequency of all chromosomal aberrati...
introduction: most of the hematologic malignancies are heterogenous with regard to morphology, immunophenotype, and genetic rearrangements. multiple recurrent chromosomal aberrations have been identified by conventional cytogenetic analysis, which is now widely recognized as one of the most important diagnostic and prognostic determinants in these patients. patients and methods: bone marrow sam...
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