998 resultados para G-banding karyotype
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Échelle(s) : [1:448 000 environ], Lieues de Portugal 5 [= 6,8 cm]
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G-1 September 2005 report from the Department of Human Services
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Comprend : Description of fossil radiolaria from the rocks of Central Borneo, obtained by prof. Dr. G. A. F. Molengraaff in the dutch exploring expedition of 1893-94
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Échelle(s) : 1:100 000
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Comprend : Rossignols amoureux / Rameau, comp. ; Leïla Ben Sedira, S ; G. Crunelle, fl. ; P. Jamet, hrp ; Psyché / Manuel de Falla, comp. ; Leïla Ben Sedira, S ; Quintette [i.e.] instrumental Pierre Jamet
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G-1 Appeal Activity in the Public Assistance Programs - October 2005
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G-1 - Appeal Activity in the Public Assistance - November, 2005
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Approximately 3% of the world population is chronically infected with the hepatitis C virus (HCV), with potential development of cirrhosis and hepatocellular carcinoma. Despite the availability of new antiviral agents, treatment remains suboptimal. Genome-wide association studies (GWAS) identified rs12979860, a polymorphism nearby IL28B, as an important predictor of HCV clearance. We report the identification of a novel TT/-G polymorphism in the CpG region upstream of IL28B, which is a better predictor of HCV clearance than rs12979860. By using peripheral blood mononuclear cells (PBMCs) from individuals carrying different allelic combinations of the TT/-G and rs12979860 polymorphisms, we show that induction of IL28B and IFN-γ-inducible protein 10 (IP-10) mRNA relies on TT/-G, but not rs12979860, making TT/-G the only functional variant identified so far. This novel step in understanding the genetic regulation of IL28B may have important implications for clinical practice, as the use of TT/G genotyping instead of rs12979860 would improve patient management.
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Cytogenic analysis of leukemic cells has proven to be a mandatory part of the diagnosis of malignant hemopathies. Recurring clonal cytogenetic abnormalities may be divided into those exclusively associated with myeloid disorders, those uniquely observed in lymphoid diseases, and those detected in both myeloid and lymphoid hemopathies. Several of the common defects are characteristic of specific FAB types or subtypes and are associated with specific clinico pathologic syndromes and clinical complications. Cytogenetic abnormalities have served to define relatively homogeneous subsets of malignant hemopathies which are not evident from morphological and other available markers. Cytogenetic findings have been demonstrated to be powerful indicators in predicting clinical course and outcome in patients and in guiding their management. Given the significant progress made in the treatment of malignant hemopathies, it is very important to identify parameters which may be used to predict whether patients will respond favorably to standard therapies or if they are unlikely to do so and require alternative strategies, such as bone marrow transplantation. Cytogenetic studies have also provided important insights into the understanding of malignant transformation processes. In a number of recurring chromosome translocations characteristic of leukemias and lymphomas the genes that are located at the breakpoints have been identified. Molecular analysis has revealed that alteration in expression of these genes or in the properties of the encoded proteins resulting from the rearrangements plays an integral part in malignant transformation. Studies of clonality have suggested that several chromosome abnormalities may arise in pluripotent hemopoietic stem cells, whereas others may originate in cells of more restricted lineage. The author focuses first on the implications of the karyotype in the diagnosis and the prognosis of myeloproliferative syndromes, acute leukemias and myelodysplastic syndromes, then on the interest of describing new clinical-cytogenetic associations. Finally, some of the recent results obtained in a cytogenetic study of myelodysplastic syndromes are discussed.
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Échelle(s) : [ca 1: 1 418 000], échelle de 20 myriamètres [= 14,1 cm]