نتایج جستجو برای: q27
تعداد نتایج: 214 فیلتر نتایج به سال:
Junctional sequences created by chromosomal translocations in mature B-cell neoplasms, which involve immunoglobulin gene loci (IG) and putative proto-oncogenes on reciprocal partner chromosomes, are unique to neoplastic cells characterized by particular histological and immunological phenotypes. To establish a rapid and sensitive method to detect neoplastic cells carrying a specific chromosomal...
Through a community study of boys requiring special education for the severely mentally retarded, 12 families were ascertained in which the fragile X was found to be segregating. By assiduous follow up of these families, it was found that in only four of them could male transmission be ruled out from the grandparents' or great grandparents' generation and that the segregation ratios are disturbed.
Lipomas are common benign soft tissue tumors whose genetic and cytogenetic features are well characterized. The karyotype is usually near- or pseudodiploid with characteristic structural chromosomal aberrations. The most common rearrangements target the high mobility group AT-hook 2 (HMGA2) gene in 12q14.3, with breakpoints occurring within or outside of the gene locus leading to deregulation o...
Three strains of Escherichia coli with altered polynucleotide phosphorylase, Q7, Q13, and Q27, were isolated by screening clones from heavily mutagenized cultures for low levels of the enzyme. The three mutations were found to cotransduce with argG and asp, and the pnp locus which they define was mapped with respect to these loci. An explanation for the nonreciprocal cotransduction frequencies ...
We report two new cases with the t(6;8)(q27;p12) and FGFR1OP-FGFR1 fusion. Case 1 presented with polycythaemia vera (PV) and evolved over 4 years to a myeloproliferative disorder (MPD) resembling the 8p11 myeloproliferative syndrome (EMS). Case 2 presented with B-cell lymphoblastic leukaemia (B-ALL). These cases illustrate the clinical heterogeneity observed in patients with FGFR1 rearrangement...
Clinical anophthalmia is a rare inherited disease of the eye and phenotype refers to the absence of ocular tissue in the orbit of eye. Patients may have unilateral or bilateral anophthalmia, and generally have short palpebral fissures and small orbits. Anophthalmia may be isolated or associated with a broader syndrome and may have genetic or environmental causes. However, genetic cause has been...
We applied a combination of molecular cytogenetic methods, including comparative genomic hybridization (CGH), spectral karyotyping (SKY), and fluorescence in situ hybridization, to characterize the genetic aberrations in a panel of 11 cell lines derived from head and neck squamous cell carcinoma and 1 cell line derived from premalignant oral epithelium. CGH identified recurrent chromosomal loss...
The aim of this study was to clarify the genetic backgrounds underlying the clinicopathological characteristics of urothelial carcinomas (UCs). Array comparative genomic hybridization analysis using a 244K oligonucleotide array was performed on 49 samples of UC tissue. Losses of 2q33.3-q37.3, 4p15.2-q13.1 and 5q13.3-q35.3 and gains of 7p11.2-q11.23 and 20q13.12-q13.2 were correlated with higher...
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