Partial trisomy of chromosome 21 without the Down syndrome phenotype.

نویسندگان

  • Mei-Tsz Su
  • Long-Ching Kuan
  • Yen-Yin Chou
  • Shang-Yi Tan
  • Tsung-Cheng Kuo
  • Pao-Lin Kuo
چکیده

Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan Department of Obstetrics and Gynecology, Kuo General Hospital, Tainan, Taiwan Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan *Correspondence to: Pao-Lin Kuo. E-mail: [email protected]; Tsung-Cheng Kuo. E-mail: [email protected] These authors made an equal contribution to this work.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Application of Molecular DNA Markers (STRs) in Molecular Diagnosis of Down Syndrome in Iran

Down syndrome is one of the most common causes of mental retardation observed in approximately 1/700 live birth. The use of two or more STR markers related to chromosome 21 facilitates the diagnosis of Down syndrome within about six hours from the collection of the samples. This is the first study has been performed in Iranian population to assess the diagnostic value of using small tandem repe...

متن کامل

Cytogenetic analysis of 1284 cases of Down syndrome

Among 17786 karyotyres performed in our center,during 18 years (1357-1375),1300(7.3%) cases of chromosome 21 aberration,including 1284(98.77%) of Down syndrome have been detected.1191 of cases (92.76%) born free trisomy 21:61 cases (4.75%) revealed translocation and 32 cases (2.4%) showed mosaic pattern.among the pateints,59 had robertsonian translocation,2 had translocation between chromosome ...

متن کامل

Tetrasomy 21pterRq21.2 in a male infant without typical Down’s syndrome dysmorphic features but moderate mental retardation

D own’s syndrome is caused by trisomy of chromosome 21. This invariably results in cognitive impairment, hypotonia, and characteristic phenotypic features such as flat facies, upslanting palpebral fissures, and inner epicanthal folds, and variations in digits and the ridge formation on hands and feet. Furthermore, trisomy 21 is a risk factor for congenital heart disease, Hirschsprung’s disease,...

متن کامل

Tetrasomy 21pter-->q21.2 in a male infant without typical Down's syndrome dysmorphic features but moderate mental retardation.

D own’s syndrome is caused by trisomy of chromosome 21. This invariably results in cognitive impairment, hypotonia, and characteristic phenotypic features such as flat facies, upslanting palpebral fissures, and inner epicanthal folds, and variations in digits and the ridge formation on hands and feet. Furthermore, trisomy 21 is a risk factor for congenital heart disease, Hirschsprung’s disease,...

متن کامل

Cytogenetic, Molecular and FISH Analysis of an Isodicentric Chromosome 21 idic(21)(q22.3) in a Mildly-Affected Patient with Down Syndrome

Most cases of Down syndrome (DS) result from a supernumerary marker chromosome 21; however there are rare cases in which DS is due to partial trisomy of chromosome 21, involving various segments of the chromosome. The characterization of DS that are due to partial trisomy 21 allows the phenotype to be correlated with the genotype. We present a case of a five-year-old male referred for cytogenet...

متن کامل

A patient with Down syndrome with a de novo derivative chromosome 21.

Pure partial trisomy of chromosome 21 is a rare event. The patients with this aberration are very important for setting up precise karyotype-phenotype correlations particularly in Down syndrome phenotype. We present here a patient with Down syndrome with a de novo derivative chromosome 21. Karyotype of the patient was designated as 46,XY,der(21)(p13)dup(21)(q11.2q21.3)dup(21)(q22.2q22.3) with r...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Prenatal diagnosis

دوره 36 5  شماره 

صفحات  -

تاریخ انتشار 2016