Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: The major allergenic component of bee venom is phospholipase A2 (PLA2). Methods: In this study, PLA2 was used to analyze and enrich PLA2-binding cells from peripheral blood by high gradient magnetic cell sorting. Results: In normal donors, the frequency of allergen (PLA2)-binding cells among peripheral blood mononuclear cells (PBMC) as determined by flow cytometry is below 0.1%, whereas in bee-venom-allergic patients, PLA2-binding cells are readily detectable at frequencies of up to 2.3%. In severely bee-venom-allergic patients, many basophilic granulocytes are present, as defined by anti-CD9, CD25, and CD38 mAb, comprising up to 95% of the PLA2-binding cells. From blood of allergic and normal donors, about equal absolute numbers of allergen-binding CD19/21-positive B cells can be enriched. Severe anaphylactic reactions (Mueller grade IV) and failure of or adverse reactions during immunotherapy are associated with high numbers of circulating allergen-binding basophils. Interestingly, in the patients studied, the number of PLA2-binding basophilic granulocytes did not markedly change during rush immunotherapy and up to 6 months of maintenance immunotherapy. Conclusions: The specific and reproducible enrichment of PLA2-binding cells provides a new tool for the analysis and monitoring of effector cells in bee-venom-allergic patients with immediate-type hypersensitivity.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 11 (1980), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An eosinophil chemotactic factor (ECF) of low molecular weight can be generated and released from human polymorphonuclear neutrophils by the calcium ionophore, phagocytosis of zymosan particles, arachidonic acid, and phospholipase A2. Since the activation of cells by the ionophore and during the phagocytic event leads to phospholipid turnover, with the subsequent generation of arachidonic acid, it is reasonable that phospholipase A2 represents the common link for ECF production. The kinetics of ECF release by phospholipase A2 is similar to the pattern observed with the various stimuli. After a rapid rise in activity a decline occurred at later times of secretion, suggesting a mechanism of inactivation. During subcellular fractionation of cells an ECF-generating component was enriched in the 200,000 g supernatant fraction, which represents the cytosol. Addition of arachidonic acid or phospholipase A2 induced ECF generation. On gel filtration analysis the ECF-generating component revealed a molecular weight of about 80,000 daltons. It is suggested that this component represents a lipoxygenase.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1569-8041
    Keywords: Hodgkin's disease ; prognostic factors ; staging laparotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Staging laparotomy and splenectomy were routinely performed in patients with early-stage Hodgkin's disease (HD) qualifying for radiotherapy alone to determine the exact extent of disease. However, staging laparotomy is associated with a considerable number of side effects, warranting more sophisticated diagnostic procedures and new therapy strategies. We retrospectively analyzed patients undergoing staging laparotomy to identify pretherapy risk factors predicting the probability of abdominal disease and to define high-risk groups that might benefit from staging laparotomy and subsequent stage-adjusted treatment. Patients and methods: Between February 1988 and January 1993, 391 patients with CS I–II supradiaphragmatic Hodgkin's disease underwent staging laparotomy and splenectomy according to the treatment policy of the German Hodgkin's Lymphoma Study Group (GHSG) for early stages of Hodgkin's disease. Univariate and multivariate analysis of pretherapeutic clinical characteristics were performed in an attempt to predict staging laparotomy results and to identify risk groups. Results: Of the 391 patients, 81 (21%) had subdiaphragmatic disease. Eighteen percent were upstaged to PS III and three percent to PS IV. By a multivariate model the following parameters were independent risk factors for positive surgical staging: left cervical involvement (P 〈 0.001), mediastinal involvement (P 〈 0.009), Karnofsky performance status (P 〈 0.004) and histology (P 〈 0.04). In our analysis gender (P 〈 0.08) and ESR (P 〈 0.06), often described as of high prognostic value, was not significant. The presence of systemic symptoms, number of involved areas and clinical stage were not associated with abdominal disease, as described in several former publications. To define high-risk groups, which comprise at least 15% of patients of the cohort and have a risk of subdiaphragmatic involvement of 〉35%, combinations of only two or three of the predictive factors were analyzed. With respect to these criteria the following subgroups of patients were identified as having a high risk for subdiaphragmatic disease (〉35%): a) left cervical lymph node involvement and no mediastinal involvement (n = 98, observed risk 36%); b) no mediastinal involvement and MC/LD histology (n= 113, observed risk 40%). Conclusions: We conclude that initial clinical characteristics are predictive for occult abdominal involvement in early clinical stages of Hodgkin's disease. The impact of these risk factors on future therapeutical strategies have to be evaluated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1569-8041
    Keywords: Hodgkin's disease ; Dexa-BEAM regimen ; high-dose chemotherapy ; ABMT ; PBSCT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Disease status before high-dose chemotherapy with autologous bone marrow transplantation (ABMT) or peripheral blood stem cell transplantation (PBSCT) is an important predictor of transplantation-related toxicity and event-free survival (EFS) for patients with relapsed or refractory Hodgkin's disease (HD). We performed a phase II study in patients with relapsed or refractory HD to evaluate the feasibility of four cycles of Dexa-BEAM followed by high-dose chemotherapy with ABMT or PBSCT. Patients and methods: Twenty-six patients (median age 30, range 20–40 years) were treated with 2–4 courses of dexamethasone, carmustine, etoposide, cytarabine and melphalan (Dexa-BEAM) as salvage chemotherapy in order to attain maximal response. Patients achieving complete response (CR) or partial response (PR) received high-dose chemotherapy with ABMT or PBSCT. The conditioning regimen used was CVB (cyclophosphamide, carmustine, etoposide). Results: Eighteen patients responded to Dexa-BEAM, resulting in a response rate of 69%. At the time of transplant 16 patients were in CR two patients in PR. At present 14 patients transplanted are in continous CR (median follow-up 40 months, range 14–60 months). Two patients with PR after four courses of Dexa-BEAM relapsed and died three months posttransplantation. Two patients with CR at the time of transplant relapsed after nine and 13 months respectively. Eight patients had rapid progressive disease after 2–4 cycles of Dexa-BEAM. One patient with progressive disease died in gram-negative sepsis after four cycles of Dexa-BEAM. There was no transplantation-related death. Conclusion: These data suggests the use of high-dose chemotherapy followed by stem cell transplantation at the time of maximal response.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1569-8041
    Keywords: disease free survival ; early stage Hodgkin's disease ; prognostic factor ; prognostic index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background:The seven-factor International Prognostic Score (IPS)has been developed and verified for patients with advanced stage Hodgkin'sdisease (HD). This report aims to assess the predictive power of the IPS forearly stage HD patients. Patients and methods:Data on patient characteristics, therapy andfollow-up were available for 1424 adult patients in clinical stagesI–IIIA treated for primary HD in two German Hodgkin's Lymphoma StudyGroup (GHSG) trials (1988–1994). Patients with risk factors or in stageIIIA received chemo–radiotherapy (CMT; trial HD5); others receivedextended field radiotherapy (RT) alone (HD4). The IPS could be calculated for712 HD5 and 249 HD4 patients (70%). The prognostic value of the IPS andits component factors was assessed using Cox proportional hazards regression.A search was made for additional factors which could add predictive power tothe IPS. Results:The IPS identified 40% of the unfavourable earlystage patients with an 8% lower disease-free survival at six years(hazard ratio 1.66, P = 0.0018). The factor ‘low albumin’ was theonly score component giving a significant individual contribution. Allowingfor the IPS, extranodal involvement, particularly in stages IIB–IIIA,was associated with worse prognosis, but no further significantly prognosticfactors were revealed. The IPS identified a similar hazard ratio in HD4,although here the effect was not significant. Conclusions:The IPS for advanced HD has modest predictive abilityin unfavourable early stage patients. Modification of the IPS for use withearly stages may improve its prognostic power.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1569-8041
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose: At present, treatment results for patients withadvanced-stage Hodgkin's disease remain unsatisfactory. Standard chemotherapyM(C)OPP (nitrogen mustard (cyclophosphamide), vincristine, procabazine, andprednisone), ABVD (adriamycine, bleomycine, vinblastine, and dacarbacine) orM(C)OPP/ABVD +/− radiotherapy fail to achieve long-term completeremission in 35% to 50% of these patients. The BEACOPP(bleomycin, etoposide, adriamycine, cyclophosphamide, vincristine,procarbazine, and prednisone) regimen was developed to improve treatmentresults by dose intensification achieved by reduced duration of treatment(time intensification) and addition of etoposide. Patients and methods: Thirty untreated patients with advancedHodgkin's disease stage IIB–IV according to the Ann Arbor classificationwere treated with the time intensified BEACOPP regimen. Each patient wasscheduled to receive eight cycles of chemotherapy with consolidatingradiotherapy to sites of initial bulk disease and to residual tumor remainingafter chemotherapy. Results: All patients were evaluable for assessment of toxicity,treatment response, freedom from treatment failure (FFTF) and survival (SV).Of 30 treated patients, 29 patients received the intended eight cycles ofBEACOPP. One patient, in clinical CR, terminated the chemotherapy at his ownrequest after six cycles and is at this time, 48 months after the end oftreatment, in complete remission. Toxicity was tolerable with WHO grade 3/4leucopenia in 28% of chemotherapy cycles and one severe (WHO grade 3)infection. No treatment-related death occurred. Cycles could generally begiven on schedule. Complete remission (CR) was achieved in all but twopatients (93%). At present, only one patient has relapsed. At a medianfollow-up of 40 months, FFTF-rate is 89% (lower confidence limit:80%). One patient died due to progressive disease. Conclusion: The BEACOPP regimen is feasible at moderate hematopoeitictoxicity. With a FFTF-rate of 89% at a median follow-up of 40 months,the treatment results are very encouraging. A prospective randomised trial hasbeen initiated to compare the BEACOPP regimen with the standard COPP/ABVDregimen in advanced-stage Hodgkin's disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 56 (1991), S. 243-253 
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Der Onkologe 5 (1999), S. 290-296 
    ISSN: 1433-0415
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Eine monoklonale Gammopathie ist meist Zeichen einer nicht malignen Grunderkrankung, stellt aber andererseits eines der charakteristischen Merkmale eines Multiplen Myeloms. Die Unterscheidung zwischen einer monoklonalen Gammopathie unbestimmter Signifikanz (MGUS) und dem Frühstadium eines Multiplen Myeloms (MM) kann problematisch sein. Dies gilt auch für die Unterscheidung der einzelnen Formvarianten des MM. Obwohl die Grenzen tumorbiologisch gesehen fließend sind, sollte man durch klare Diagnosekriterien eine Kategorisierung durchführen, da dies therapeutische Handlungsanweisungen beinhaltet. Besonders wichtig ist die Abgrenzung solitärer Plasmozytome, da sie potentiell heilbar sind. Das folgende Kapitel soll einen Überblick über die wichtigsten Formvarianten monoklonaler Gammopathien geben. Neben diagnostischen Kriterien zur Differenzierung der verschiedenen Entitäten werden für die Varianten des MM und die solitären Plasmozytome auch die aktuellen therapeutischen Empfehlungen vorgestellt.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-0584
    Keywords: Key words Hodgkin' s disease ; Liver biopsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Liver biopsy is an invasive diagnostic method for detecting liver involvement (LI) in Hodgkin's disease (HD). The aim of this retrospective study was to determine and evaluate a method for restricting liver biopsy to a subset of patients. Between 1988 and 1994, a total of 2016 patients with HD were treated within the HD4–6 study protocol of the German Hodgkin's Lymphoma Study Group (GHSG). We investigated the predictive power of abdominal ultrasound (US) and computed tomography (CT), as well as of various clinical factors related to LI, using univariate and multivariate methods. LI occurred in 4.9% of all patients (99/2016) and in 3.0% of those who, if LI were disregarded, would have been included in clinical stages I and II. In multivariate analysis the presence of LI was significantly associated with splenic involvement or infradiaphragmatic involvement, absence of mediastinal involvement, serum alkaline phosphatase (SAP) level over 230 units/l, and age over 40 years. We used these factors to define a risk score for LI. LI is very rare in patients who would otherwise be in clinical stages I or II, but knowledge of LI is important because it has therapeutic consequences. With our risk score, liver biopsy is indicated for approximately one quarter of these patients otherwise in clinical stages I or II.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...