کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2814278 1569550 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The occurrence of aneuploidy in human: lessons from the cytogenetic studies of human oocytes
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
The occurrence of aneuploidy in human: lessons from the cytogenetic studies of human oocytes
چکیده انگلیسی

During the last 4 decades, the cytogenetic investigation of human oocytes has never stopped to progress, according to the advents of new technologies. Both karyotyping and molecular cytogenetic studies have been reported to date, providing a large body of data on the incidence and the distribution of chromosomal abnormalities in human female gametes. However, these studies display a great variability in results, which may be essentially attributable to the limitations of these techniques when applied to human oocytes. The most relevant analysis have led to the estimate that 15-20% of human oocytes present chromosome abnormalities, and they have emphasized the implication of both whole chromosome nondisjunction and chromatid separation in the occurrence of aneuploidy in human oocytes. The effect of advanced maternal age on the incidence of aneuploidies in human oocytes has also been clearly evidenced by recent reports based on large sample of oocytes or polar bodies, whereas most of initial studies have failed to confirm any relationship between maternal age and aneuploidy in human oocytes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Medical Genetics - Volume 49, Issue 2, March–April 2006, Pages 103–116
نویسندگان
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