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Leukemia and mortality and hair cell

M J García-Fuster, A Ramos-Miguel, G Rivero, R La Harpe, J J Meana, J A García-Sevilla
Opiate addiction is a chronic medical disorder characterized by drug tolerance and dependence, behavioral sensitization, vulnerability to compulsive relapse, and high mortality. In laboratory animals, the potential effect of opiate drugs to induce cell death by apoptosis is a controversial topic. This postmortem human brain study examined the status of the extrinsic and intrinsic apoptotic pathways in the prefrontal cortex of a large group of well-characterized heroin or methadone abusers. In these subjects (n=36), the immunocontent of apoptosis-1 protein (Fas) death receptor did not differ from that in age-, gender-, and postmortem delay-matched controls...
November 11, 2008: Neuroscience
Eric H Kraut
Hairy-cell leukaemia is an indolent lymphoproliferative malignancy characterized by infiltration of the bone marrow, liver, spleen, and occasionally lymph nodes with a malignant B cell with hair-like cytoplasmic projections. This involvement leads to splenomegaly with secondary consumption of red cells, platelets and neutrophils as well as other complications of an enlarged spleen, including infarction-or-rarely rupture. The common haematological complications of anaemia, neutropenia and thrombocytopenia are due not only to the enlarged spleen but probably also to hairy cells in the bone marrow inducing cytokine-mediated suppression of haematopoiesis...
March 2003: Best Practice & Research. Clinical Haematology
J B Meldrum, V S Gupta, N R Lowes, A R Paterson
Toxic effects of 5-hydroxymethyldeoxyuridine (HMUdR) were studied in white Swiss mice. Pathological, hematological, and clinical chemistry parameters were examined. Systemic toxicity was not observed in mice after ip administration of HMUdR in single doses up to 2000 mg/kg. Mice administered HMUdR daily for 15 days at 200 mg/kg, ip, manifested loss of weight, rough hair coat, diarrhea, swollen abdomens, weakness, lethargy, and a 20% mortality rate. Hematological and clinical chemistry parameters of all mice receiving HMUdR were within normal limits...
July 1985: Toxicology and Applied Pharmacology
D O Stram, R Sposto
Random errors in the DS86 radiation dose estimates used in the analysis of A-bomb survivor data are recognized to have an important impact upon estimates of the risk of late effects such as cancer. Little however is known for certain concerning the distribution of such random errors. This paper gives an overview of recent work at the Radiation Effects Research Foundation (RERF) using multivariate analysis of biological data, including acute effects of radiation exposure, late effects (eg leukemia mortality) and stable chromosome aberrations, for the purpose of evaluating the extent of random error in the estimation of individual doses using DS86...
March 1991: Journal of Radiation Research
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