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  • 1990-1994  (17)
  • 1940-1944  (1)
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  • 1
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    Skrifter om Svalbard og Ishavet (1928-1940)
    Oslo ; Nr. 13.1928 - 81.1940
    Details Availability
    Call number: ZSP-597
    Parallel Title: 73=1927/36 von Norges Svalbard- og Ishavs-Undersøkelser: Report on the activities of Norges Svalbard- og Ishavs-Unders/okelser
    Former Title: Vorg. ---〉 Skrifter om Svalbard og Nordishavet
    Subsequent Title: Forts. ---〉 Norges Svalbard- og Ishavs-Undersøkelser: Skrifter / Norges Svalbard- og Ishavsundersøkelser
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Examples of air-entraining flows (1992)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 649-651 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Four examples of air-entraining flows at the free surface of a liquid are briefly considered: (a) the transient impact of a jet, (b) the application of an excess pressure, (c) two counter-rotating vortices below the surface, and (d) a disturbance on a vortex sheet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858281
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    Paper (German National Licenses)
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  • 3
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    Sequential in vivo treatment with two recombinant human hematopoietic growth factors (interleukin-3 and granulocyte-macrophage colony- stimulating factor) as a new therapeutic modality to stimulate hematopoiesis: results of a phase I study (1992)
    American Society of Hematology
    Details
    Publication Date: 1992-05-15
    Description: In a phase I study, the sequentially administered combination of recombinant human interleukin-3 (rhIL-3) and rhGM-CSF was compared with treatment with rhIL-3 alone in 15 patients with advanced tumors but normal hematopoiesis. Patients were initially treated with rhIL-3 for 15 days. After a treatment-free interval, the patients received a second 5-day cycle of rhIL-3 at an identical dosage, immediately followed by a 10-day course of rhGM-CSF, to assess the toxicity and biologic effects of this sequential rhIL-3/rhGM-CSF combination. rhIL-3 doses tested were 125, and 250 micrograms/m2, whereas rhGM-CSF was administered at a daily dosage of 250 micrograms/m2. Both cytokines were administered by subcutaneous (SC) bolus injection. rhIL-3/rhGM-CSF treatment was more effective than rhIL-3 but equally effective to each other in increasing peripheral leukocyte counts, especially neutrophilic and eosinophilic granulocyte counts. In contrast, both modes of cytokine therapy raised the platelet counts to the same degree. rhIL-3/GM-CSF treatment was more effective than rhIL-3 in increasing the number of circulating hematopoietic progenitor cells BFU- E and CFU-GM. High-dose rhIL-3, but not low-dose rhIL-3, was as effective as the rhIL-3/rhGM-CSF combinations in increasing the number of circulating CFU-GEMM. The increase in absolute neutrophil counts correlated with the increase in the number of circulating CFU-GM. Side effects, mainly fever, headache, flushing, and sweating, were generally mild, but in two patients the occurrence of chills, rigor, and dyspnea after initiation of GM-CSF treatment necessitated dose reduction and discontinuation, respectively. These results indicate that sequential treatment with rhIL-3 and rhGM-CSF is as effective as single-factor treatment with rhIL-3 in stimulating platelet counts, whereas the effect of combination therapy on neutrophil counts and circulating progenitor cells is superior.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 4
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    Sequential in vivo treatment with two recombinant human hematopoietic growth factors (interleukin-3 and granulocyte-macrophage colony- stimulating factor) as a new therapeutic modality to stimulate hematopoiesis: results of a phase I study (1992)
    American Society of Hematology
    Details
    Publication Date: 1992-05-15
    Description: In a phase I study, the sequentially administered combination of recombinant human interleukin-3 (rhIL-3) and rhGM-CSF was compared with treatment with rhIL-3 alone in 15 patients with advanced tumors but normal hematopoiesis. Patients were initially treated with rhIL-3 for 15 days. After a treatment-free interval, the patients received a second 5-day cycle of rhIL-3 at an identical dosage, immediately followed by a 10-day course of rhGM-CSF, to assess the toxicity and biologic effects of this sequential rhIL-3/rhGM-CSF combination. rhIL-3 doses tested were 125, and 250 micrograms/m2, whereas rhGM-CSF was administered at a daily dosage of 250 micrograms/m2. Both cytokines were administered by subcutaneous (SC) bolus injection. rhIL-3/rhGM-CSF treatment was more effective than rhIL-3 but equally effective to each other in increasing peripheral leukocyte counts, especially neutrophilic and eosinophilic granulocyte counts. In contrast, both modes of cytokine therapy raised the platelet counts to the same degree. rhIL-3/GM-CSF treatment was more effective than rhIL-3 in increasing the number of circulating hematopoietic progenitor cells BFU- E and CFU-GM. High-dose rhIL-3, but not low-dose rhIL-3, was as effective as the rhIL-3/rhGM-CSF combinations in increasing the number of circulating CFU-GEMM. The increase in absolute neutrophil counts correlated with the increase in the number of circulating CFU-GM. Side effects, mainly fever, headache, flushing, and sweating, were generally mild, but in two patients the occurrence of chills, rigor, and dyspnea after initiation of GM-CSF treatment necessitated dose reduction and discontinuation, respectively. These results indicate that sequential treatment with rhIL-3 and rhGM-CSF is as effective as single-factor treatment with rhIL-3 in stimulating platelet counts, whereas the effect of combination therapy on neutrophil counts and circulating progenitor cells is superior.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 5
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    Effects of recombinant human interleukin-3 in aplastic anemia (1990)
    American Society of Hematology
    Details
    Publication Date: 1990-10-01
    Description: In a phase I/II study, nine patients with aplastic anemia were treated with recombinant human interleukin-3 (rhIL-3) to assess the toxicity and biologic effects of this multipotential hematopoietic growth factor. Doses ranging from 250 micrograms/m2 to 500 micrograms/m2 were administered as subcutaneous bolus injections daily for 15 days. An increase in platelet counts from 1,000/microL to 31,000/microL was induced by rhIL-3 in one patient, and an increase in reticulocyte counts by more than 10,000/microL in four patients. The blood leukocyte counts temporarily increased in eight patients 1.5- to 3.3-fold (median, 1.8-fold), mainly due to an increase in the number of neutrophils, eosinophils, lymphocytes, and monocytes. In two patients, bone marrow cellularity increased from 7% to 33% and from 10% to 80%, respectively, but without resulting in a substantial improvement of peripheral blood counts. Mild side effects (headache and flushing) were observed in some patients, while low-grade fever occurred in all patients. Transient thrombocytopenia necessitating discontinuation of rhIL-3 treatment occurred in one patient. In conclusion, rhIL-3 can stimulate hematopoiesis in patients with aplastic anemia; however, no lasting effects were obtained.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 6
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    Detection of minimal residual disease in acute lymphoblastic leukemia using immunoglobulin hypervariable region specific oligonucleotide probes (1990)
    American Society of Hematology
    Details
    Publication Date: 1990-11-15
    Description: To develop a sensitive and specific assay for minimal residual disease in acute lymphoblastic leukemia (ALL), we exploited the enormous diversity of genomic sequences created by immune receptor gene rearrangements. To isolate clone-specific sequences, we first synthesized oligonucleotides that match conserved variable (VH) and joining (JH) sequences flanking the third hypervariable region (HVR3) in the rearranged immunoglobulin heavy chain (IgH) locus. In polymerase chain reactions (PCR), these primers were then used to amplify the intervening HVR3 segments from leukemic DNA samples. Of 12 B-lineage ALLs studied, ten generated one or more fragments of the size expected for HVR3 gene segments. Thus, this single pair of amplimers was sufficient to isolate HVR3 sequences from a majority of acute lymphoblastic leukemias. To verify that the amplified fragments originated from HVR3 alleles and to assess their diversity, we sequenced 7 PCR products derived from 6 leukemias. In addition to elements of recognized D segments, each of the 7 fragments contained novel VH-D and D-JH junctional sequences, including N nucleotides, not known to be present in the germline. Each sequence was unique, and allele-specific oligonucleotide probes hybridized only to HVR3 segments from which the probes were derived. Therefore, as anticipated, these HVR3 segments appeared to possess the diversity required to serve as clonal markers for leukemic populations. To demonstrate that these amplified HVR3 alleles could serve as the basis for a sensitive and specific assay to detect rare leukemic cells, we analyzed in detail one pre-B leukemia that had rearranged 2 IgH alleles. The HVR3 sequences were shown to be linked to rearranged JH-containing restriction fragments in digests of genomic DNA, establishing their origin in the leukemic cells. We synthesized oligonucleotides corresponding to the unique junctional sequences in the HVR3 segments. Using these novel amplimers in an allele-specific amplification and hybridization procedure, we showed that this assay can detect 10 leukemic cells in a background of 10(6) normal blood mononuclear cells. In contrast, the leukemic HVR3 sequences were not detected in extracts of normal or unrelated remission leukemic leukocytes. We conclude that the assay for specific IgH HVR3 sequences is a realistic strategy for detection of minimal residual disease in B-lineage ALL.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 7
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    Effects of recombinant human interleukin-3 in patients with normal hematopoiesis and in patients with bone marrow failure (1990)
    American Society of Hematology
    Details
    Publication Date: 1990-08-15
    Description: In a phase I/II study, 19 patients with advanced tumors but normal hematopoiesis and nine patients with bone marrow failure and prolonged severe cytopenias were treated with recombinant human interleukin-3 (rhIL-3) to assess the toxicity and biological effects of this multipotential hematopoietic growth factor. Doses ranging from 30 micrograms/m2 to 500 micrograms/m2 were administered as subcutaneous bolus injection daily for 15 days. A dose-dependent increase in platelet counts ranging from 1.3-fold at 60 micrograms/m2 to 1.9-fold at 250 micrograms/m2 was induced by rhIL-3 in 15 of 18 evaluable patients with normal hematopoiesis. An increase in reticulocyte counts was observed in 14 patients. The blood leukocyte counts dose dependently increased 1.4- to 3.0-fold. In patients with bone marrow failure, platelet counts increased by a mean of sixfold (range, 1.3- fold to 14.3-fold) in five of eight evaluable patients. Reticulocyte counts increased 4.4-fold in six patients, and neutrophil counts increased by a mean of 3.1-fold in all eight patients. Platelet transfusions could be discontinued after treatment with rhIL-3 in two of three transfusion-dependent patients. Only mild side effects, mainly fever, headache, and flushing, were observed. These results indicate that rhIL-3 functions as a multilineage hematopoietin in vivo in patients with normal bone marrow function and in patients with secondary bone marrow failure.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 8
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    In vitro culture of common acute lymphoblastic leukemia blasts: effects of interleukin-3, interleukin-7, and accessory cells (1992)
    American Society of Hematology
    Details
    Publication Date: 1992-06-15
    Description: We investigated the effects of interleukin-3 (IL-3), IL-7, IL-1, and IL- 6, of irradiated bone marrow-derived fibroblasts (Fb) and of in vitro matured peripheral blood macrophages (M phi), on the survival, proliferation, and maturation of purified blasts from nine common acute lymphoblastic leukemias (cALLs) in 7-day suspension culture. Exposure to IL-3, IL-7, IL-1, and IL-6 resulted in a mean 2.8-, 1.5-, 1.4-, and 1.6-fold stimulation of 3H-thymidine (3H-TdR) incorporation, respectively. Cocultures of cALL blasts with irradiated M phi, either allowing direct cell-cell contact or preventing it by membrane filters, or with irradiated Fb, resulted in a mean 31.7-, 4.1-, and 11.2-fold increase of 3H-TdR incorporation, respectively. Southern blot analysis of immunoglobulin and T-cell receptor (TCR) gene rearrangements before and after culture indicated exclusive proliferation of the leukemic clone in three of eight samples, whereas additional generation of nonleukemic cells was found in five samples. Polyclonal growth pattern corresponded to the detection of heterogeneous cell populations using FACS analysis. Survival of cALL blasts as defined by the detection of cells coexpressing both CD10 and CD19 after culture was supported by accessory cells in five of eight samples. No evidence of induced lymphoid maturation was found under any culture condition. Our data demonstrate supportive effects of stromal cells on cALL growth, which cannot be replaced by IL-3 or IL-7.
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    Electronic ISSN: 1528-0020
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  • 9
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    Detection of minimal residual disease in acute lymphoblastic leukemia using immunoglobulin hypervariable region specific oligonucleotide probes (1990)
    American Society of Hematology
    Details
    Publication Date: 1990-11-15
    Description: To develop a sensitive and specific assay for minimal residual disease in acute lymphoblastic leukemia (ALL), we exploited the enormous diversity of genomic sequences created by immune receptor gene rearrangements. To isolate clone-specific sequences, we first synthesized oligonucleotides that match conserved variable (VH) and joining (JH) sequences flanking the third hypervariable region (HVR3) in the rearranged immunoglobulin heavy chain (IgH) locus. In polymerase chain reactions (PCR), these primers were then used to amplify the intervening HVR3 segments from leukemic DNA samples. Of 12 B-lineage ALLs studied, ten generated one or more fragments of the size expected for HVR3 gene segments. Thus, this single pair of amplimers was sufficient to isolate HVR3 sequences from a majority of acute lymphoblastic leukemias. To verify that the amplified fragments originated from HVR3 alleles and to assess their diversity, we sequenced 7 PCR products derived from 6 leukemias. In addition to elements of recognized D segments, each of the 7 fragments contained novel VH-D and D-JH junctional sequences, including N nucleotides, not known to be present in the germline. Each sequence was unique, and allele-specific oligonucleotide probes hybridized only to HVR3 segments from which the probes were derived. Therefore, as anticipated, these HVR3 segments appeared to possess the diversity required to serve as clonal markers for leukemic populations. To demonstrate that these amplified HVR3 alleles could serve as the basis for a sensitive and specific assay to detect rare leukemic cells, we analyzed in detail one pre-B leukemia that had rearranged 2 IgH alleles. The HVR3 sequences were shown to be linked to rearranged JH-containing restriction fragments in digests of genomic DNA, establishing their origin in the leukemic cells. We synthesized oligonucleotides corresponding to the unique junctional sequences in the HVR3 segments. Using these novel amplimers in an allele-specific amplification and hybridization procedure, we showed that this assay can detect 10 leukemic cells in a background of 10(6) normal blood mononuclear cells. In contrast, the leukemic HVR3 sequences were not detected in extracts of normal or unrelated remission leukemic leukocytes. We conclude that the assay for specific IgH HVR3 sequences is a realistic strategy for detection of minimal residual disease in B-lineage ALL.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 10
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    Effects of recombinant human interleukin-3 in aplastic anemia (1990)
    American Society of Hematology
    Details
    Publication Date: 1990-10-01
    Description: In a phase I/II study, nine patients with aplastic anemia were treated with recombinant human interleukin-3 (rhIL-3) to assess the toxicity and biologic effects of this multipotential hematopoietic growth factor. Doses ranging from 250 micrograms/m2 to 500 micrograms/m2 were administered as subcutaneous bolus injections daily for 15 days. An increase in platelet counts from 1,000/microL to 31,000/microL was induced by rhIL-3 in one patient, and an increase in reticulocyte counts by more than 10,000/microL in four patients. The blood leukocyte counts temporarily increased in eight patients 1.5- to 3.3-fold (median, 1.8-fold), mainly due to an increase in the number of neutrophils, eosinophils, lymphocytes, and monocytes. In two patients, bone marrow cellularity increased from 7% to 33% and from 10% to 80%, respectively, but without resulting in a substantial improvement of peripheral blood counts. Mild side effects (headache and flushing) were observed in some patients, while low-grade fever occurred in all patients. Transient thrombocytopenia necessitating discontinuation of rhIL-3 treatment occurred in one patient. In conclusion, rhIL-3 can stimulate hematopoiesis in patients with aplastic anemia; however, no lasting effects were obtained.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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