نتایج جستجو برای: hematologic neoplasms
تعداد نتایج: 507542 فیلتر نتایج به سال:
Rearrangements of the T cell ‘y (T y) gene were studied in primary neoplastic cells from 75 patients with leukemia or lymphoma. T y gene rearrangements were observed in 19 of 21 T cell neoplasms; 14 of 21 immature B cell leukemias. including 4 out of 5 patients with rearrangements of both immunoglobulin heavy-chain (JH) and T cell receptor /9 chain (T/9) genes; none out of 14 B cell neoplasms; ...
BACKGROUND Exaggerated reaction to insect bites, mainly to mosquitoes, is infrequently described in patients with chronic lymphocytic leukemia. Skin lesions usually appear months to years after the diagnosis of leukemia and are unrelated to laboratory findings, disease course, or therapy. OBSERVATIONS We describe 8 patients with various hematologic disorders (chronic lymphocytic leukemia, acu...
In 2005, an activating mutation in the Janus kinase 2 (JAK2) was identified in a significant proportion of patients with myeloproliferative neoplasms, mainly polycythemia vera, essential thrombocythemia and primary myelofibrosis. Many types of mutations in the JAK-STAT pathway have been identified, the majority are related to JAK2. Currently JAK2 mutations are important in the area of diagnosis...
BACKGROUND AND OBJECTIVES NAD(P)H:quinone oxidoreductase 1 (NQO1) is an enzyme that protects cells against mutagenicity from free radicals and toxic oxygen metabolites. The gene coding for NQO1 is subject to a genetic polymorphism at nucleotide position 609 (C-->T) of the human NQO1 cDNA. Heterozygous individuals (C/T) have intermediate activity and homozygotes for the variant allele (T/T) are ...
Myeloid neoplasms are clonal diseases of hematopoietic stem or progenitor cells that result from molecular alterations that perturb cellular self-renewal, proliferation, and differentiation. As classified by the World Health Organization, myeloid neoplasms include myeloproliferative neoplasms (MPN), myelodysplastic syndromes (MDS), MPN/MDS overlap, and acute myeloid leukemia (AML), which can oc...
The differentiation inhibitory factor nm23 can inhibit the differentiation of murine and human myeloid leukemia cells. We recently reported that nm23 genes were overexpressed in acute myelogenous leukemia (AML), and a higher level of nm23-H1 expression was correlated with a poor prognosis in AML, especially in AML-M5 (acute monocytic leukemia). To evaluate the importance of nm23 expression as a...
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