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  • 1
    ISSN: 0375-9474
    Keywords: Atomic Physics ; measured annihilation X-ray spectrum
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2307
    Keywords: Key words Macrophages ; Pseudo-Gaucher cells ; Chronic myeloid leukaemia ; Bone marrow transplantation ; Bone marrow biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  A morphometric and immunohistochemical study was performed on 354 bone marrow trephine biopsies derived from 126 patients with chronic myeloid leukaemia (CML) before and after allogeneic bone marrow transplantation (BMT). The purpose of this investigation was to evaluate the macrophage population, including several subsets and their dynamics in the posttransplant period. In addition to the total CD68+ resident (mature) macrophages the so-called activated fraction identified by its capacity to express α-d-galactosyl residues, the pseudo-Gaucher cells (PGCs) and the iron-laden histiocytic reticular cells were also considered. Following immuno- and lectin-histochemical staining morphometric analysis was carried out on sequential postgraft bone marrow specimens at standardized intervals. Compared to the normal bone marrow and calculated per haematopoiesis (cellularity) an overall decrease of about 40–50% in the quantity of CD68+ macrophages and the BSA-I+ subpopulation was detectable in the early posttransplant period (9–45 days after BMT). Noteworthy was the temporal recurrence of PGCs in the engrafted bone marrow, which was not associated with a clonally transformed cell population or leukaemic relapse. Reappearance of postgraft PGCs was most prominent in the first 2 months after BMT. This conspicuous feature was presumed to be functionally associated with a pronounced degradation of cell debris following pretransplant myelo-ablative therapy (scavenger macrophages). Evidence for an activation of the BSA-I+ macrophage subset was derived from the identical carbohydrate-binding capacity shown by the PGCs. In the regenerating haematopoiesis shortly after BMT a significant correlation between the number of BSA-I+ macrophages and erythroid precursor cells was determinable. This result implicates a close functional relationship between postgraft reconstitution of erythropoietic islets and centrally localized activated macrophages. In conclusion, findings emerging from this study included the reappearance of PCGs in the engrafted bone marrow independently of a leukaemic relapse and the significant association of the activated BSA-I+ macrophage subset with the recovery of erythropoiesis.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0584
    Keywords: Bone marrow transplantation ; Dyskeratosis congenita ; Graftversus-host-disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 33-year-old man with dyskeratosis congenita received a marrow transplant to treat severe pancytopenia. The graft was successful, but the patient developed severe acute graft-versus-host-disease grade IV and died 51 days post-grafting. — The outcome of transplantation in dyskeratosis congenita is compared to that in Fanconi's anaemia due to the resemblance of both diseases in some aspects.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 52 (1986), S. 199-201 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1440
    Keywords: Chronic granulocytic leukaemia ; Bone marrow transplantation ; Graft-versus-host disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-one patients with chronic granulocytic leukaemia underwent marrow transplantation. The donors were human-lymphocyte antigen-identical siblings in 19 cases. In the remaining 2 cases the donor was a parent in one and an identical twin in the other. The preparatory regimen included cyclophosphamide and 8.6 Gy total body irradiation given at either a dose of 0.1 Gy/min or 0.04 Gy/min. Five patients were in the accelerated phase of the disease, one was in remission following blast crisis, and the rest were all in the chronic phase. After chemotherapy and irradiation, all patients received bone marrow transplants. To date, nine patients are still alive, with a median survival of 64 days (range 28–683 days). One patient continued to have leukaemic cells and in another, the leukaemia recurred 18 months following transplantation. Interstitial pneumonitis was the cause of death of eight patients (38%). Graft-versus-host disease occurred in ten patients (47%).
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1433-0385
    Keywords: Keywords: Intraoperative irradiation ; Gastrointestinal carcinoma ; Recurrent rectal carcinoma ; Multimodal therapy. ; Schlüsselwörter: Intraoperative Radiotherapie ; gastrointestinale Carcinome ; Rectumcarcinomrezidiv ; multimodale Therapie.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Durch intraoperative Strahlentherapie (IORT) wird unter maximaler Schonung der umliegenden strahlensensiblen Organe die Strahlendosis im Tumorbett lokal erhöht. Mit diesem Verfahren als Bestandteil eines multimodalen Therapieregimes konnten sowohl die Lokalrezidivrate als auch die Überlebensrate gegenüber konventionellen Therapieregimen beim fortgeschrittenen primären Rectumcarcinom und Carcinomrezidiv verbessert werden. Dagegen ist bisher nur in wenigen Studien über eine verbesserte Überlebensrate durch zusätzliche IORT beim fortgeschrittenen Magencarcinom berichtet worden. Beim Pankreascarcinom wird durch IORT die lokale Tumorkontrolle, nicht aber die Überlebensrate verbessert, da häufig Leber- und Peritonealmetastasen auftreten. Für das Oesophaguscarcinom liegen zur Zeit nur unzureichende Daten vor.
    Notes: Abstract. Surgery alone often fails to achieve local control in advanced gastrointestinal tumors. With multimodal therapy approaches, both local tumor control and long-term survival appear to be improved. Intraoperative radiation therapy (IORT) is an attempt to achieve higher doses of irradiation while dose-limiting structures are surgically displaced. It has been shown previously that both local tumor control and long-term survival are improved in patients undergoing surgery combined with IORT for both primary and recurrent rectal carcinoma. In advanced gastric carcinoma, IORT has achieved optimistic survival results in a few studies. In locally advanced pancreatic cancer, an apparent improvement in local control has been noted with IORT, but survival has not been prolonged because of a high incidence of both liver and peritoneal metastases. The data concerning IORT for esophageal carcinoma are not yet sufficient to allow judgement.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1433-2965
    Keywords: Key words:Bone loss – Bone resorption – Organ transplantation, Osteoporosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: Organ transplantation is associated with relevant bone loss. Bone loss of up to 20% of pretransplant bone mineral density (BMD) values within the first year after kidney, liver, heart and lung transplantation has been reported. Patients undergoing transplantation of hematopoietic stem cells provide an interesting model to study transplantation-induced bone loss, especially because most patients do not have pre-existing bone disease. A longitudinal study was performed in 81 patients undergoing bone marrow or peripheral blood stem cell transplantation. BMD was determined by dual-energy X-ray absorptiometry before transplantation, at discharge from the hospital, and at 6 and 12 months after transplantation in all 81 patients. In 35 patients BMD was re-evaluated 24 months after transplantation. Vitamin D and parathyroid hormone, bone alkaline phosphatase as a marker of bone formation, and N-terminal telopeptide of type I collagen as a marker of bone resorption were assessed before transplantation and in the short-term follow-up 14 and 28 days after transplantation. The majority of patients (72%) showed normal BMD before transplantation. However, lower BMD was observed in patients who had received high-dose cytoreductive chemotherapy before transplantation compared with those who had received no chemotherapy or only hydroxyurea. Despite supplementation with elemental calcium (1000 mg/day) and vitamin D (1000 IU/day), the mean rate of bone loss during the first year was 7.2 ± 6.3% at the lumbar spine, 11.9 ± 8.1% at the femoral neck and 3.8 ± 2.5% at the total body compartment. Evaluation of the pattern of bone loss during the first year demonstrated that the amount of bone loss was largest within the first 40 days after transplantation and small during the second half of the first year after transplantation. The majority of patients showed vitamin D deficiency and secondary hyperparathyroidism. Bone formation was normal before and after transplantation, whereas bone resorption was dramatically increased before and after transplantation. Exposure to glucocorticoids was associated with higher bone loss at spine and femoral neck but not at the total body compartment. Our data demonstrate rapid bone loss in patients undergoing transplantation of hematopoietic stem cells. Bone turnover is characterized by biochemical uncoupling of bone resorption and bone formation, changes interestingly pre-existing before transplantation. The observed alterations in bone mass and metabolism emphasize the importance of clinical trials with antiresorptive agents to prevent and treat post-transplantation osteoporosis in this group of patients.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0584
    Keywords: CML ; Isodicentric Ph1 ; Karyotypic evolution ; Bone marrow transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Clonal chromosomal evolution was observed in a 16-year-old boy suffering from Ph1-positive CML. An isodicentric Ph1 chromosome appeared 20 weeks after the initial diagnosis. At that time an allogeneic bone marrow transplantation was performed. Thereafter, during an observation period of more than 13 months, chromosome analyses showed neither the Ph1 chromosome nor the abnormal isodicentric variant. Close cytogenetic monitoring is suggested to reveal early unfavourable prognostic signs of the onset of blast crisis before it becomes evident in the bone marrow morphology.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 54 (1987), S. 317-318 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 261 (1978), S. 153-161 
    ISSN: 1432-069X
    Keywords: 5-para-amino-compounds ; Epicutane sensitization on guinea pigs ; Fünf parasubstituierte Benzolderivate ; 5 Parastoffe ; Epicutane Sensibilisierung an Meerschweinchen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Wir haben an 160 Meerschweinchen epicutane Sensibilisierungsversuche mit parasubstituierten Benzolderivaten in 4 Konzentrationsstufen durchgeführt und die Beurteilung der Testreaktionen nach makroskopischen und histologischen Kriterien vorgenommen. Den mit jeder Substanz an 32 Tieren gewonnenen Ergebnissen ist zu entnehmen, daß Sensibilisierungen eingetreten sind mit p-Aminodiphenylamin in etwa 50%, mit p-Toluylendiamin in etwa 25%, mit p-Phenyldiamin in 62% (bei 1- und 2%iger Konzentration), mit p-Aminoazotoluol in 37% (mit 5%iger Konzentration), mit p-Aminobenzoesäure in keinem Fall. Aus dem Vergleich der Sensibilisierungsquoten ist zu schließen, daß p-Aminodiphenylamin und p-Phenylendiamin als starke Sensibilisatoren anzusehen sind, p-Aminoazotoluol und p-Toluylendiamin einen geringeren Effekt aufwiesen und p-Aminobenzoesäure unwirksam blieb.
    Notes: Summary Skin tests with derivates of para-substituted benzene were carried out at 4 different concentrations on a total of 160 guinea pigs. Results were evaluated macroscopically and histologically. Each substance was tested on 32 animals. Sensitization was obtained with p-aminodiphenylamine in about 50%, with p-toluylenediamine in about 25%, with 1% and 2% p-phenylenediamine in 62%, with 5% p-aminoazotoluene in 37%, whereas no sensitization was observed with p-aminobenzoic acid. Thus, p-aminodiphenylamine, p-toluylenediamine and p-phenylenediamine must be regarded as highly sensitizing agents, whereas p-aminoazotoluene and p-aminobenzoic acid seem to be less effective respectively non sensitizing.
    Type of Medium: Electronic Resource
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