نتایج جستجو برای: Chromosomal abmormalities

تعداد نتایج: 47372  

Journal: :iranian journal of pathology 2006
ali mohamad malekasgar mohamad esmaeil motlagh mahmood hashemi tabar mohamad ali ghafari

background and objective: pregnancy termination and recurrent abortion are one of the common complications during pregnancy and in patients with a bad obstetric history. materials and methods: in this study, a total of 154 individuals including 75 couples four single women from different communities and with various incomes were investigated chromosomal abnormalities using blood culture and chr...

Ali Mohamad Malekasgar, Mahmood Hashemi Tabar Mohamad Ali Ghafari Mohamad Esmaeil Motlagh

Background and Objective: Pregnancy termination and recurrent abortion are one of the common complications during pregnancy and in patients with a bad obstetric history. Materials and Methods: In this study, a total of 154 individuals including 75 couples four single women from different communities and ...

Journal: :international journal of molecular and cellular medicine 0
ahmadreza zarifian student research assembly, mashhad university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) zeinab farhoodi student research assembly, mashhad university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) roya amel student research assembly, mashhad university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) salmahe mirzaee department of medical genetics, faculty of medicine, mashhad university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mohammad hassanzadeh-nazarabad department of medical genetics, faculty of medicine, mashhad university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

one of the major causes of spontaneous abortion before the fourth month of pregnancy is chromosomal abnormalities. we report an unusual case of a familial balanced chromosomal translocation in a consanguineous couple who experienced 4 spontaneous abortions. chromosomal studies were performed on the basis of g-banding technique at high resolution and revealed 46, xx, t (16 6) (p12 q26) and 46, x...

Journal: :international journal of reproductive biomedicine 0
mohammad hasanzadeh-nazarabadi hasanzadeh-nazarabadi fatemeh baghbani iman namazi salmeh mirzaee

background: approximately 205 million pregnancies occur each year in the worldwide. on the other hand, spontaneous abortion has been reported in 15-20% of all diagnosed pregnancies. the most common cause of spontaneous abortion is chromosomal abnormalities of the embryo. robertsonian translocation carriers specially 21-14 are the most common balanced rearrangement among the carrier couples with...

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: :journal of reproduction and infertility 0

uterine leiomyomas/fibroids are the most common pelvic tumors of the female genital tract. the initiators remaining unknown, estrogens and progesterone are considered as promoters of fibroid growth. fibroids are monoclonal tumors showing 40-50% karyo-typically detectable chromosomal abnormalities. cytogenetic aberrations involving chromosomes 6, 7, 12 and 14 constitute the major chromosome abno...

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: :international journal of hematology-oncology and stem cell research 0
m yaghmaie hematology- oncology and stem cell transplantation research center, shariati hospital, tehran university of medical sciences nazanin gerayeli hematology- oncology and stem cell transplantation research center, shariati hospital, tehran university of medical sciences seyyed hamid ghaffari hematology- oncology and stem cell transplantation research center, shariati hospital, tehran university of medical sciences sm tootian iranian blood transfusion organization, tehran, iran

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...

Journal: :international journal of molecular and cellular medicine 0
sahar shekoohi department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) majid mojarrad department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) reza raoofian department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) shahab ahmadzadeh department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) salmah mirzaie department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mohammad hassanzadeh-nazarabadi department of medical genetics, school of medicine, mashhad university of medical sciences, mashhad, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

spontaneous abortion (sab) is the most common complication of early pregnancy. numerous risk factors are associated with an increased risk of pregnancy loss such as: blighted ovum. the aim of this study was to determine the frequency of balanced chromosomal translocations in couples with a history of recurrent spontaneous abortions and ultrasound diagnosed blighted ovum. sixty eight couples wit...

Journal: :iranian journal of pathology 2006
iran rashidi javad mohammadi asl

objective: approximately 15-20% of clinically recognizable pregnancies end in spontaneous abortion. the incidence of chromosomal abnormalities in those abortions is as high as 50%.a modest but clinically important proportion of spontaneous abortions is caused by a balanced chromosomal aberration in one of the parents. this results from the production of gametes and embryos with unbalanced chrom...

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