نتایج جستجو برای: chromosomal anomalies

تعداد نتایج: 91765  

Journal: :Ultrasound in Obstetrics and Gynecology 1991

Journal: :Cytogenetics and cell genetics 1975
D S Borgaonkar D R Bolling C Partridge F H Ruddle V A McKusick

Introducing a new hobby for other people may inspire them to join with you. Reading, as one of mutual hobby, is considered as the very easy hobby to do. But, many people are not interested in this hobby. Why? Boring is the reason of why. However, this feel actually can deal with the book and time of you reading. Yeah, one that we will refer to break the boredom in reading is choosing chromosoma...

ژورنال: مجله طب نظامی 2019

Chromosomal abnormalities are able to produce genetic instability, which is the main cause of many diseases. Cytogenetics is analysis of any kind of chromosomal abnormalities. Chromosomal alterations can be divided into structural and numerical abnormalities, both of which play a significant role in the development of many diseases, particularly cancer. Today, most cytogenetic analyzes are perf...

2011
G. Witters J. Van Robays C. Willekes A. Coumans H. Peeters W. Gyselaers J.P. Fryns

First trimester spontaneous abortions occur in 15 to 20% of all clinically recognized pregnancies. Chromosomal -anomalies are responsible for more than 50% of spontaneous abortions. The majority (90%) of these chromosomal anomalies are numerical, particularly autosomal trisomies (involving chromosomes 13,16, 18, 21, 22), polyploidy and monosomy X. At birth chromosomal anomalies are still an imp...

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...

Akbar Safaei Hossein Ayatollahi, Mohammad Vasei

  Background and Objectives: Primary amenorrhea is not a disease but a symptom that may result from several quite different causes[NN1] . Common hormonal cause of primary amenorrhea includes constitutional delay, hypothalamic –pituitary dysfunction, chronic systemic disease and absent ovarian function. The aim of this study was to estimate the incidence of the chromosomal abnormality referred ...

Journal: :Cancer research 1995
J Qian D G Bostwick S Takahashi T J Borell J F Herath M M Lieber R B Jenkins

The pathogenetic relationship between high-grade prostatic intraepithelial neoplasia (PIN), prostatic carcinoma, and metastases is poorly understood. We used fluorescence in situ hybridization (FISH) with centromere-specific probes for chromosomes 7, 8, 10, 12, and Y to evaluate numeric chromosomal anomalies in PIN (68 foci), localized prostatic carcinoma (78 foci), and lymph node metastases (8...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2008
T N Leung

Chromosomal anomalies remain the commonest cause of mental retardation and congenital malformation. Traditionally, the prenatal diagnosis of chromosomal aberration relies on cytogenetic analysis of the cells obtained from amniocentesis or chorionic villus sampling (CVS). First, the amniotic fluid or chorionic villi samples need to be cultured for 14 days or more before adequate foetal cells can...

Alibakhshi R Azadbakht M Bashiri Z, Mirahadi N

Background: The advances in cytogenetic techniques during the last few years have permitted not only the study of large populations of wild and domestic animals, but also the detection of chromosome anomalies in embryos. Chromosomal abnormalities are the most common cause of embryonic and fetal mortality in mammals. Most reports of chromosome anomalies in parthenogenetic embryos describe numeri...

Journal: :acta medica iranica 0
fatemeh hadipour department of medical genetics, sarem cell research center & hospital, tehran, iran. yousef shafeghati department of medical genetics, sarem cell research center & hospital, tehran, iran. and genetics research center, university of social welfare and rehabilitation sciences, tehran, iran. eiman bagherizadeh department of medical genetics, sarem cell research center & hospital, tehran, iran. farkhondeh behjati department of medical genetics, sarem cell research center & hospital, tehran, iran. and genetics research center, university of social welfare and rehabilitation sciences, tehran, iran. zahra hadipour department of medical genetics, sarem cell research center & hospital, tehran, iran.

49,xxxxy is rare chromosomal pattern and these patients have mental retardation, small penis, cryptorchidism and skeletal anomalies. we reported a 10 month-old boy who has hypotonia, microcephaly, hypertelorism, depressed nasal bridge, epicanthic folds and bilateral multiple ear tags, high arched palate, down set ears, micrognathia and congenital heart disease such as patent ductus arteriosus (...

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