نتایج جستجو برای: Chromosomal Anomaly

تعداد نتایج: 85966  

Journal: :international journal of reproductive biomedicine 0
atefeh asgari safieh ghahremani solmaz saeedi ebrahim kamrani

background: different studies show that chromosomal balance translocation in the parents can cause recurrent spontaneous abortions. incidence of chromosomal translocation abnormalities in couples with repeated abortions is from 0% to 31%. objective: the purpose of this research was studying the presence or absence of chromosomal abnormalities and heteromorphism in couples with recurrent abortio...

Journal: :Human reproduction 2012
Maribel Grande Antoni Borrell Raul Garcia-Posada Virginia Borobio Miriam Muñoz Montserrat Creus Anna Soler Aurora Sanchez Juan Balasch

STUDY QUESTION Is there any effect of maternal age on chromosomal anomaly rate and spectrum in recurrent miscarriage? SUMMARY ANSWER There was no significant difference in the chromosome abnormality rate between sporadic and recurrent miscarriage but the chromosome abnormality rate increased significantly with maternal age. WHAT IS KNOWN ALREADY About 50-70% of non-recurrent miscarriages oc...

حوری سپهری, , زهرا اوسطی آشتیانی, , فرخنده بهجتی, , محمدتقی اکبری, , پریسا کلانتری, ,

In this study, chromosome analyses were performed on 70 infertile Azoospermic and Oligospermic (<20 million/ml) men, and also cultures of peripheral blood lymphocytes by high resolution banding method were analysed as well. It is revealed 8 (11.43 percent) men with chromosomal abnormality. There were 31.4 percent patients with azoospermia and 68.6 percent with oligospermia from several thousand...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
پریسا کلانتری kalantari p حوری سپهری sepehri h محمدتقی اکبری akbari mt زهرا اوسطی آشتیانی osati ashtiani z فرخنده بهجتی behjati f

in this study, chromosome analyses were performed on 70 infertile azoospermic and oligospermic (<20 million/ml) men, and also cultures of peripheral blood lymphocytes by high resolution banding method were analysed as well. it is revealed 8 (11.43 percent) men with chromosomal abnormality. there were 31.4 percent patients with azoospermia and 68.6 percent with oligospermia from several thousand...

Journal: :cell journal 0

objective: chromosomal aberrations are common causes of multiple anomaly syndromes. recurrent chromosomal aberrations have been identified by conventional cytogenetic methods used widely as one of the most important clinical diagnostic techniques. materials and methods: in this retrospective study, the incidences of chromosomal aberrations were evaluated in a six year period from 2005 to 2011 i...

Mahvash Zargar Mojgan Barati Sara Masihi Sima Taherpour

Background A significant number of pregnancies, particularly in women with previous histories of infertility, are associated with fetal abnormalities. Methods such as the nuchal translucency (NT) measurement enable us to identify more pregnancies with chromosomal abnormalities. MaterialsAndMethods This analytic cross-sectional study was performed in 446 pregnant women at 11-14 weeks gestation, ...

Journal: :BMJ 2005
P A Boyd B Armstrong H Dolk B Botting S Pattenden L Abramsky J Rankin M Vrijheid D Wellesley

OBJECTIVE Firstly, to assess the completeness of ascertainment in the National Congenital Anomaly System (NCAS), the basis for congenital anomaly surveillance in England and Wales, and its variation by defect, geographical area, and socioeconomic deprivation. Secondly, to assess the impact of the lack of data on pregnancies terminated because of fetal anomaly. DESIGN Comparison of the NCAS wi...

Journal: :بینا 0
مهرناز نارویی نژاد m narooie-nejad zahedan university of medical sciences, zahedan, iran- مرکز تحقیقات ژنتیک در بیماری های غیرواگیر- دانشگاه علوم پزشکی زاهدان- زاهدان- ایران حبیب اله زنجانی h zanjani zahedan university of medical sciences, zahedan, iranدانشگاه علوم پزشکی زاهدان- زاهدان- ایران رضا اکبرپور r akbarpour zahedan university of medical sciences, zahedan, iranدانشگاه علوم پزشکی فسا- فارس- ایران علی خواجه a khaje zahedan university of medical sciences, zahedan, iranمرکز تحقیقات سلامت کودکان و نوجوانان- دانشگاه علوم پزشکی زاهدان- زاهدان- ایران

purpose: to assess the frequency and type of associated malformations and chromosomal anomalies among patients with anophthalmia, microphthalmia, and coloboma in sistan and baluchestan province. methods: patients with a clinical diagnosis of anophthalmia, microphthalmia, or coloboma were examined to find any anomaly in craniofacial, muscle-skeletal, cardiac, neurologic and urogenital systems. a...

Fatemeh Mirzaie M Darvish M.R Bazr Afshan S Falahati

Background & Aims: Chromosome abnormalities are a major cause of miscarriage and neonatal mortality. The present study aimed to determine the association of fetal and parents chromosomal abnormalities with congenital anomalies. Methods: A cross-sectional study was performed in a tertiary referral center (Afzalipour Hospital) over 16 months period (2011-2012). The study groups consisted of 77 fe...

2013
Atefeh Asgari Safieh Ghahremani Solmaz Saeedi Ebrahim Kamrani

BACKGROUND Different studies show that chromosomal balance translocation in the parents can cause recurrent spontaneous abortions. Incidence of chromosomal translocation abnormalities in couples with repeated abortions is from 0% to 31%. OBJECTIVE The purpose of this research was studying the presence or absence of chromosomal abnormalities and heteromorphism in couples with recurrent abortio...

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