Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0023418 (leukemia)
 93,477 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Pyoderma gangrenosum (PG) has been increasingly reported in association with myeloproliferative disorders. Monoclonal gammaopathy, myeloma, myeloid metaplasia, and polycythemia have all been found in association with PG. Recently, seven cases of PG in association with leukemia have been described: three cases with acute myeloblastic leukemia, two cases with chronic myelogenous leukemia, one case with acute lymphoblastic leukemia, and one case with acute leukemia of either plasma cell or myeloblast origin. To these we add two cases of PG with acute myeloblastic leukemia. These patients often have an atypical clinical presentation for PG, with bullae and relatively superficial involvement obscuring the correct diagnosis.
 ...
PMID:Atypical pyoderma gangrenosum with leukemia. 27 73

L-asparaginase from Escherichia coli--Crasnitin was used in 14 children with acute leukemia unresponsive to conventional treatment: 11 acute lymphoblastic leukemias, 1 acute myeloblastic leukemia, 2 other forms of leukemia. The remission induction was obtained in 70% of applications. Median of remission duration was 90 days. Serious side effects were observed. The validity of L-asparaginase in therapy of advanced childhood ALL is stressed.
 ...
PMID:L-asparaginase in treatment of acute leukemia in children. 27 52

Two patients with idiopathic refractory sideroblastic anemia (IRSA) were found to have acquired hemoglobin H. Both developed leukemic syndromes. Six other patients with IRSA had normal hemoglobin electrpohoretic patterns, and none has developed acute leukemia in up to five years. We suggest that hemoglobin electrphoresis be performed routinely in IRSA. The finding of hemoglobin H in this population may be a relatively frequent occurrence and may serve to distinguish the preleukemic patients from those not destined to develop leukemia.
 ...
PMID:Acquired hemoglobin H in refractor sideroblastic anemia. A preleukemic marker. 27 89

Among 195 patients with variants of acute myelogenous leukemia (AML), a minimum of 11 met our criteria of smouldering AML: patients with less than 30% of blast cells plus promyelocytes in the bone marrow at the time of diagnosis who were observed without specific antileukemic therapy for a period of at least 6 months without entering a fulminant stage of the disease. These patients were older than other patients with AML, they had initially relatively few infections, bled rarely, and did not enter the fullblown clinical picture typical of acute leukemia until the last months of life. For these 11 patients the median survival time was 29 months from the time of diagnosis. Patients with smouldering leukemia shall be observed carefully and not be given specific antileukemic therapy, at least not before they flare into a blast crisis. Transfusions, antibiotics and a small dose of prednisone should be given when necessary.
 ...
PMID:Smouldering acute myelogenous leukemia. 27 68

Serum lysozyme activity was measured in samples from children with acute leukemia, malignant tumours, and in normal children. All children with acute lymphatic leukemia (ALL) had significantly reduced levels of lysozyme at diagnosis, and none of the children fell within the normal range. Children with ALL in complete remission had lysozyme levels comparable to normal chidren, while children with ALL in relapse also had pathological low levels. Children with ALL in remission and off therapy also had normal levels of lysozyme. Children with acute myelogenous leukemia had normal lysozyme levels, while children with monomyelocytic leukemia had substantially elevated lysozyme levels before treatment. Determination of serum lysozyme activity in children with acute leukemia is of value both for diagnosis and for evaluating the effect of therapy.
 ...
PMID:Serum lysozyme activity in children with acute leukemia. 27 70

Central nervous system (CNS) lesions were found in 85 of 91 children with acute leukemia. Cerebral atrophy was the most common lesion, occurring in 65 percent. Atrophy was most severe in children treated with intrathecal methotrexate alone or in combination with radiation therapy, in children youngest at time of onset of leukemia, and in children in whom duration of leukemia was shortest. Longer duration was the determining factor among children who were older at onset. Lesions previously reported by other investigators, such as leptomeningeal infiltration of leukemic cells, infection, hemorrhage, degenerative grey and white matter disease and leukoencephalopathy were also seen. Central pontine myelinolysis occurred in four children.
 ...
PMID:Central nervous system lesions in childhood leukemia. 27 57

Blood cells from 68 patients with untreated acute myeloid luekemia were cultured in RPMI-medium without stimulating factors up to ten days. The cultures showed in part maturation and proliferation to monocytes-macrophages, in part to promyelocytes, myelocytes and Pelger-like cells, in part we did not find any differentiation or the cultures were degenerated during the first days. Retrospectively we found that in the 16 blood cell cultures with capacity to differentiation into the monocyte-macrophages-system 5 patients had a smouldering leukemia. Our preliminary evidences suggest that the diagnosis "smouldering leukemia" is to be found with out in vitro culture system. Further analysis suggest that patients with acute leukemia whose blood cells have the capacity for maturation to monocytes-macrophages or to promyelocytes, myelocytes and Pelger-like cells have a better chance of achieving a complete remission and a longer median survival time.
 ...
PMID:Maturation and proliferation capacity of blood cells from untreated acute myeloid leukemia and its prognostic significance. 27 39

Blood lymphocytes from 13 untreated acute leukemia patients, 3 pre-leukemias 3 immunoblastic lymphadenopathias and one infectious mononucleosis showed significantly lower spontaneous (SCMC) and antibody-dependent cellular cytotoxicity (ADCC) against 51Cr-labeled allogeneic melanoma cells of the IGR3 cell line than effector lymphocytes from 20 age- and sex matched control persons. While control lymphocytes exhibited the highest cytotoxic activity after depletion of mononuclear phagocytes (Fraction FFF), followed by the "Ficoll" purified Fraction F and defibrinated whole blood, the reverse was true for acute leukemias: here, the highest cytotoxicity was found in whole blood followed by the lymphocyte fractions F and FFF. Comparatively high cytotoxicity was found with two leukemia patients who had received blood transfusions the day before testing. During the course of an acute erythroleukemia chemotherapy drastically reduced SCMC and ADCC activities. A therapeutical splenectomy, on the other hand, did not affect cellular cytotoxicity in the case of a hairy cell leukemia. The angioimmunoblastic lymphadenopathies showed strikingly high percentages of EA- and EAC-rosettes forming cells and showed a marked increase of SCMC and ADCC activities after elimination of mononuclear phagocytes from the effector cell population.
 ...
PMID:[Effector function of acute leukemias in "spontaneous" (SCMC) and antibody dependent cellular cytotoxicity-tests (ADCC) (author's transl)]. 28 Jul 29

Spontaneous mitoses in the blood of 67 patients with acute leukemia were enumerated and their identity determined by cytogenetic methods. Most patients were children with acute lymphoblastic leukemia. Simultaneous 16- to 20-hour cultures of blood leukocytes (Bu) and of bone marrow (BM) cells were performed without phytohemagglutinin (PHA). Blood leukocytes were also cultured with PHA for 72 hours (BPHA). Mitoses in Bu cultures were counted, and karyotypic analysis performed on cells from the three culture types. In 21 control subjects, Bu cultures usually yielded no mitoses. Relapse and remission patients both displayed significantly more Bu mitoses than the controls. The karyotypes of Bu, BPHA, and BM mitoses in remission patients were normal. Fifty percent of relapse patients displayed cytogenetically abnormal leukemia cell lines; the percentage of their abnormal karyotypes was significantly higher in BM cells than in Bu or BPHA cells. The majority of the mitotic cells in Bu cultures from both relapse and remission patients appear to be of a nonleukemic origin. The number of mitoses could not be correlated with type of leukemia, hematologic parameters, or prognosis.
 ...
PMID:Non-leukemic dividing cells in the blood of leukemic patients. 28 Nov 27

In the paper, the main results of some investigations, conducted in the Institute laboratories during 1969--77, are summarized. Special attention is given to the detected first phenomenon of functional antagonism of antibodies in leukemia and to the recognition of the specific humoral immune responsiveness of acute leukemia patients. The author reports the results of clinical trials of "the method for regulation of the specific immunity", which practically gives a 100% remission in comparatively short terms for children with acute lymphoblastic leukemia. Also, a longer remission term and survival were gained in children, subjected in the remission period to chemotherapy in combination with BCG injections as compared with patients treated only by chemotherapy.
 ...
PMID:[Immunology and immunotherapy of leukemia (basic results of 8-years research)]. 28 26


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>