نتایج جستجو برای: sex chromosome abnormality
تعداد نتایج: 456037 فیلتر نتایج به سال:
introduction: infertility is a significant multifactorial disorder that can be caused by chromosomal abnormalities. in this study, we aimed to cytogenetically investigate male and female patients admitted to the genetic diagnostic laboratory of kayseri educational hospital in kayseri, turkey with varied clinical prediagnoses of infertility. materials and methods: chromosomes from cultured perip...
background and objective: failure to thrive (ftt) is a sign that describes a particular problem rather than a diagnosis and explain growth failure or more advanced failure to gain weight appropriately. the aim of this study was to determine the prevalence and type of chromosomal abnormalities in patients presented with ftt. materials and method: one hundred ftt cases with clinical impression o...
The primary testis-determining function is exerted by a gene in the sex-determining region of the human Y chromosome. This gene is termed the sex-determining factor or TDF. A zinc finger gene, ZFY, residing in this region has been cloned and characterized. It is a candidate for TDF. A challenge to future molecular research is to clarify the function of a zinc finger gene on the X chromosome, ZF...
BACKGROUND Male infertility due to severe oligozoospermia and azoospermia has been associated with a number of genetic risk factors. METHODS In this study 150 men from couples requesting ICSI were investigated for genetic abnormalities, such as constitutive chromosome abnormalities, microdeletions of the Y chromosome (AZF region) and mutations in the cystic fibrosis transmembrane conductance ...
background and aim: ring chromosomes are rare cytogenetic abnormalities that occur in less than 10% of hematopoietic malignancies. they are rare in blood disorder. the present review has focused on the ring chromosome associated with oncology malignancies. materials and methods: by reviewing the web-based search for all english scientific peer review articles published, was initiated using medl...
OBJECTIVE To investigate how the prenatal diagnosis of a sex chromosome anomaly is first communicated to parents. DESIGN Health professionals were interviewed by telephone and the conversation was taped; parents were sent questionnaires at 1 month after diagnosis and those who responded were sent another at 6 months. PARTICIPANTS 29 health professionals who had recently informed parents tha...
Cytogenetic studies on 64 rat leukemias induced with 7,8,12- and 6,8,12-trimethylbenz(a)anthracene were performed. Highly distinctive changes were found repeatedly in one special pair of chromosomes. 10 leukemias (15.6%) showed the presence of stemline(s) with trisomy of the largest telocentric chromosome (C-1 trisomy). Another chromosome abnormality, elongation of one of the pairs of the same ...
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