Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0027819 (neuroblastoma)
 27,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cyclocytidine, a slow-release form of cytosine arabinoside, was evaluated in 69 children with advanced acute leukemia and solid tumors. One child with acute lymphocytic leukemia attained a complete remission. This child had received intrathecal cytosine arabinoside prior to the cyclocytidine. Eighteen of the 31 patients with acute lymphocytic leukemia/acute undifferentiated leukemia who did not respond received two or more courses of the drug. There were no responses in 15 children with acute myelogenous leukemia, in 11 children with neuroblastoma, or in 11 children with various solid tumors of childhood. A dose of 600 ng/m2/day for 10 consecutive days is tolerated in children.
 ...
PMID:Evaluation of cyclocytidine in children with advanced acute leukemia and solid tumors. 8 7

The authors observed rosette formation and partially fibrillar, blue-grey, extracellular material in Wright-Giemsa-stained bone marrow aspirate smears in five preparations from three cases of neuroblastoma metastatic to bone marrow. These features are little publicized in the literature and textbooks. These findings in neuroblastoma metastatic to bone marrow should prove helpful in differentiating that entity from acute leukemia and from other metastatic small-cell neoplasms in bone marrow.
 ...
PMID:Metastatic neuroblastoma in bone marrow aspirate smears. 9 88

A live varicella vaccine was used in 11 susceptible children in remission from acute leukemia, ten of whom had been in remission for six months or less, and in 6 children with neuroblastoma and retinoblastoma. In the immunological checkup before vaccination, most of them showed a positive reaction in the skin tests with dinitrochlorobenzene, phytohemagglutinin, purified protein derivative, and viral antigens. Leukopenia (three cases, less than 3,000/cu mm) and decreased IgG level (two cases, 380 mg/dl and 445 mg/dl) were observed in the children with leukemia. Anticancer medication was suspended from one week before vaccination to one week after vaccination. The only clinical reaction was a minute rash that appeared three weeks after vaccination in two children with leukemia and that disappeared within three days. Serological responses by complement fixing and neutralizing (NT) tests were detected in all the vaccinated children four weeks after vaccination, and NT antibody was still detected 28 months after vaccination in the two patients tested. Three of the vaccines were exposed to natural varicella at home and in the classroom 2 to 18 months after vaccination, but they were free from any varicella symptoms.
 ...
PMID:Application of a live varicella vaccine in children with acute leukemia or other malignant diseases. 20 15

Eleven cases of Pneumocystis carinii pneumonia were diagnosed during a 3 1/2-year period at a pediatric hospital where this infection had never been identified previously despite appropriate studies. The incidence of infection was 3.0, 7.4, and 4.2 cases per 1,000 patient months in children being treated for acute leukemia, neuroblastoma, and rhabdomyosarcoma, respectively. The outbreak coincided with increased intensity of chemotherapy for these malignancies. Ten of the patients had received four or more chemotherapeutic agents within three months of the onset of infection. Because no exogenous source of the epidemic was found, latent endogenous infection activated by immunosuppression was presumed to be the ultimate cause of the outbreak. Increased intensity of chemotherapy may result in P carinii outbreaks and may be an indication for anti-Pneumocystis prophylaxis with trimethoprim/sulfamethoxazole in patients at risk.
 ...
PMID:An outbreak of Pneumocystis carinii pneumonia at a pediatric hospital. 31 May 39

Closed trephine needle biopsy of the bone marrow has become an established procedure in the evaluation of many malignant and benign diseases in adults; however, its role in pediatric pathology has not yet been defined. In the period from February 1974 to April 1978 we have performed 164 such biopsies in 111 children under 15 years of age. A representative specimen has been obtained in over 80% of cases. This series included, in order of frequency, non-Hodgkin lymphomas, Hodgkin lymphomas, aplastic anemias, rhabdomyosarcomas, neuroblastomas, miscellaneous solid tumors, and single cases of histiocytosis X, malignant histiocytosis, sarcoidosis, malignant histiocytoma, and Castleman lymphoma of the hyaline-vascular type. Histology has been found superior to cytology in the detection of neuroblastoma invasion; the evaluation of the true cellularity in aplastic anemia, and the detection of granulomatous tissue in the only case of sarcoidosis. In other diseases histology and cytology gave similar information, except for the few cases of acute leukemia in partial relapse, which has been better defined in the aspirate smears than in the core specimen. Further evaluation of this technique in other patient series appears advisable.
 ...
PMID:Bone marrow biopsy in children: a study of 111 patients. 44 Feb 5

High level expression of the nm23-H1 gene, which encodes for a nucleoside diphosphate kinase, has been found to correlate with diminished metastasis in some tumors but not in others. We have previously identified the protein product of the nm23-H1 gene in two-dimensional electrophoretic gels and have designated it p19/nm23. In neuroblastoma, higher levels of p19/nm23, which are associated with amplification of the N-myc oncogene, large tumor mass, and metastasis, were observed in advanced stage tumors compared with limited stage disease. Because of the variable expression of nm23-H1 in different tumors, we have investigated the relationship between amounts of the protein and cell proliferation. The levels of p19/nm23 were compared between resting and mitotically stimulated normal human PBLs and in leukemia cells. The amount of p19/nm23 increased in normal lymphocytes in response to mitotic stimulation and paralleled the increase in DNA synthesis. In leukemia cells obtained from patients with different subtypes of acute leukemia, p19/nm23 levels were also increased relative to resting normal lymphocytes. Treatment of mitotically stimulated lymphocytes with cyclosporin, which inhibits proliferation, blocked the increase in p19/nm23; treatment of the leukemia cell line HL-60 with dimethylsulfoxide, which induces terminal differentiation, resulted in diminished levels of p19/nm23. Our data therefore provide evidence that nm23-H1 expression is related to cell proliferative activity.
 ...
PMID:Proliferation-related expression of p19/nm23 nucleoside diphosphate kinase. 131 21

Carminomycin is an original antitumor antibiotic from the anthracycline group isolated at the Institute of New Antibiotics (USSR) in 1973. Pharmacological investigation of carminomycin revealed its satisfactory absorption from the gastrointestinal tract which proved to be a distinguishing property of the antibiotic as compared to other anthracyclines such as adriamycin and rubomycin. The clinical trials of carminomycin showed that it was mainly active against soft tissue sarcoma and breast cancer, lymphosarcoma, neuroblastoma, Wilms' tumor and Ewing's sarcoma in children, as well as acute leukemia. Various regimens for the antibiotic administration were applied: short-term, single and long-term. Suppression of hemopoiesis was considered as a limiting toxic effect. By the data available carminomycin had lower cardiotoxicity as compared with rubomycin and adriamycin. Development of oral carminomycin is believed promising.
 ...
PMID:[Experience with using carminomycin in oncological clinical practice]. 132 45

Six infants with acute megakaryoblastic leukemia and a translocation (1;22)(p13;q13) were studied. There were five female infants and one male infant, and the age at initial examination varied from 0.8 to 6.5 months (median, 2.3 months). All the patients had hepatosplenomegaly and anemia (6 to 8.3 g/dL), and four patients had thrombocytopenia (9,000 to 63,000/mm3). The bone marrow showed prominent fibrosis in five cases and reticulin fibrosis in one patient at presentation. Crush artifact often made the histologic sections difficult to interpret, but typical megakaryoblasts could be identified in the smears. Biopsy specimens of the liver and lymph node were suggestive of a nonhematopoietic malignant condition because of the cohesiveness of the tumor cells, stromal fibrosis, and the prominent sinusoidal and vascular pattern of infiltration. Immunophenotyping of peripheral blood mononuclear cells was helpful in identifying the blasts as belonging to the megakaryoblastic lineage. Using a panel of mononclonal antibodies, it was also possible to confirm the nature of the infiltration in paraffin sections and to differentiate it from other childhood small round cell tumors, especially neuroblastoma in paraffin sections (typical staining pattern: CD45-, CD43+, vW Factor, Ulex europeus I+, CD20-, CD45RO-, synaptophysin-, chromogranin-, cytokeratin-, desmin-). This special type of infantile acute leukemia can be recognized with confidence if one is aware of its clinical features, peculiar pathologic characteristics, the morphologic features and immunophenotype of the megakaryoblasts, and the unique cytogenetic abnormality.
 ...
PMID:Acute megakaryoblastic leukemia in infants with t(1;22)(p13;q13) abnormality. 151 33

The sequential outcome was evaluated for all childhood cancers in which the Pediatric Oncology Group has conducted a series of clinical trials, with constant eligibility, on patients with newly diagnosed cancer. The analysis was applied to more than 7000 patients with cancer diagnosed between 1976 and 1989. These include acute leukemia (4 subgroups), non-Hodgkins lymphoma (4 subgroups), osteogenic sarcoma, and advanced neuroblastoma. In 8 of these 10 disease areas, significant improvement in outcome has occurred. In rare diseases such as pediatric cancer, collaborative studies may be the only way to conduct therapeutic trials of sufficient statistical power. A cooperative group has distinct advantages over a series of ad hoc collaborative studies in that it can maintain a unified data base, study its history with minimal confounding effects of changing institutional participants, and develop long-term research relationships among its participants.
 ...
PMID:Progress against childhood cancer: the Pediatric Oncology Group experience. 155 37

The treatment of primary proliferative polycythaemia (polycythaemia rubra vera) may include radioactive phosphorus (P32) in conjunction with venesection. Acute leukaemia or carcinoma can be associated with the use of P32. We present a case of primary proliferative polycythaemia treated by repeat venesection together with P32 whose follow-up was complicated by the development of malignant neuroblastoma.
 ...
PMID:Polycythaemia and neuroblastoma. 191 34


1 2 3 4 5 6 Next >>