An Effective Method for Detecting Y-chromosome Specific Sequences of Circulating Fetal DNA in Maternal Plasma During the First-trimester

سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 166

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شناسه ملی سند علمی:

JR_JIML-6-2_001

تاریخ نمایه سازی: 7 اسفند 1401

چکیده مقاله:

Background and Aims: New advances in the use of cell-free fetal DNA (cffDNA) in maternal plasma of pregnant women has provided the possibility of applying cffDNA in prenatal diagnosis as a non-invasive method. One of the applications of prenatal diagnosis is fetal gender determination. Early prenatal determination of fetal sex is required for pregnant women at risk of X-linked and some endocrine diseases. The present study was carried out to perform an efficient polymerase chain reaction (PCR) method in order to improve sensitivity, specificity and accuracy of non-invasive fetal gender detection using fetal DNA in maternal plasma during ۸th -۱۲th weeks of pregnancy. Materials and Methods: Thirty-five pregnant women with ۸ to ۱۲ weeks of pregnancy were selected for prenatal fetal sex determination. Maternal peripheral blood was collected and cffDNA was extracted from ۳-ml of maternal plasma. Two multi copy Y-chromosome-specific region (DYS and DAZ) and a single copy gene (SRY) were amplified by real-time quantitative PCR. Amplification was labeled as positive, negative, or inconclusive according to a stringent algorithm. Results: Using this method, the sensitivity and specificity of the real-time PCR assay was ۱۰۰% and ۹۳.۸% for prenatal fetal sex detection, respectively. Conclusions: It is concluded that fetal sex can be determined with a high level of accuracy by our algorithm, after ۸ weeks of gestation with cffDNA analysis.

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نویسندگان

نجمه داوودیان

Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.

علی کدیور

Department of Clinical Science, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

حیدر حیدری خویی

Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.

سیما حکمتیان خیاط

Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.

محبوبه حیدری نصیرابادی

Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.

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