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Skalsky K, Levi A, Bental T, Vaknin-Assa H, Assali A, Steinmetz T, Kornowski R, Perl L. Acute kidney injury definition following PCI and cardiovascular outcomes. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Acute kidney injury (AKI) is a complication of percutaneous coronary intervention (PCI), known to increase rates of adverse medical events. We aimed to identify the optimal definition of AKI in predicting of adverse cardiovascular outcomes and mortality post PCI.
Methods
From a large registry of patients undergoing PCI between 2006–2018 (n=25,690) at two hospitals, consecutive patients were assessed for the presence of AKI according to four different definitions: a relative elevation of ≥25% or ≥50%; or an absolute elevation of ≥0.3 mg/dL or ≥0.5 mg/dL in serum creatinine at 48 hours post PCI. We assessed the calculated rates of AKI according to the different definitions. The discriminant capacity for 30-day and 1-year mortality and MACE (MACE: all-cause death, myocardial infarction, target-vessel revascularization and coronary artery bypass graft surgery) of each definition was calculated using ROC curves and AUCs.
Results
Data of 15,153 patients was available for final analysis. Rates of AKI were 12.1%, 3.2%, 8.1% and 3.9% according to the four definitions, respectively. The discriminant capacity of adverse outcomes was highest among those defined as AKI according to the third definition - an absolute elevation of ≥0.3 mg/dL in serum creatinine with an AUC of 0.82 (95% CI 0.80–0.84) for 30-day mortality (P value = 0.036) and an AUC of 0.78 (CI 0.76–0.79) for 30 days MACE.
Conclusions
An absolute elevation of ≥0.3 mg/dL in serum creatinine 48 hours post PCI predicts overall mortality and MACE most accurately.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Skalsky
- Rabin Medical Center, Petah Tikva, Israel
| | - A Levi
- Rabin Medical Center, Petah Tikva, Israel
| | - T Bental
- Rabin Medical Center, Petah Tikva, Israel
| | | | - A Assali
- Meir Medical Center, Kfar Saba, Israel
| | | | | | - L Perl
- Rabin Medical Center, Petah Tikva, Israel
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2
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Shiyovich A, Skalsky K, Steinmetz T, Eisen A, Samara A, Beigel R, Kornowski R, Orvin K. Incidence, determinants and impact of acute kidney injury in ACS patients with versus without diabetes mellitus. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Acute kidney injury (AKI) is a common complication in patients presenting with acute coronary syndrome (ACS), particularly following percutaneous coronary intervention (PCI). Patients with diabetes mellitus (DM) are considered to be at increased risk for AKI in this setting. However, data regarding the incidence, risk factors and outcomes of AKI in diabetic patients compared to non-diabetics presenting with ACS is scarce.
Purpose
To evaluate the incidence, risk factors and outcomes of AKI in patients with vs. without DM who are admitted with ACS.
Methods
ACS patients enrolled in the biannual ACS Israeli Surveys (ACSIS) between 2000 and 2018 were analyzed. AKI was defined as an absolute increase in serum creatinine (≥0.5 mg/dL) or above 1.5 mg/dL or new renal replacement therapy upon admission with ACS. Outcomes included 30-day major adverse cardiovascular events (MACE) and 1-year all-cause mortality.
Results
The current study included a total of 16,879 patients, median age 64 (IQR 54–74), 77% males, 36% with DM. The incidence of AKI was significantly higher among patients with vs. without DM (8.4% vs. 4.7%, p<0.001). The rates of 30-day MACE (40.8% vs. 13.4%, p<0.001) and 1-year mortality (43.7% vs. 10%, p<0.001) were significantly greater among patients who developed vs. those that did not develop AKI respectively yet very similar in diabetics and non-diabetics.
Multivariate analyses (figure 1) adjusted to potential confounders showed similar independent predictors of AKI among patients with and without DM comprising; older age, chronic kidney disease, congestive heart failure, and peripheral arterial disease
Conclusions
Although patients with DM are at greater risk for AKI when admitted with ACS, the independent predictors of AKI and the worse patient outcomes when AKI occurs, are similar and irrespective to DM.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Shiyovich
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
| | - K Skalsky
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
| | - T Steinmetz
- Rabin Medical Center, Nephrology, Petah Tikva, Israel
| | - A Eisen
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
| | - A Samara
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
| | - R Beigel
- Sheba Medical Center, Cardiology, Ramat Gan, Israel
| | - R Kornowski
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
| | - K Orvin
- Rabin Medical Center, Cardiology, Petah Tikva, Israel
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Itzhaki Ben Zadok O, Leshem-Lev D, Ben-Gal T, Hamdan A, Schamroth-Pravda N, Steinmetz T, Kandinov I, Kornowski R, Eisen A. Quantitative and functional evaluation of endothelial progenitor cells in patients with cardiac amyloidosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Endothelial microvascular dysfunction is a known mechanism of injury in cardiac amyloidosis (CA), but evidence regarding the level and function of endothelial progenitor cells (EPCs) in patients with CA is lacking.
Methods
Study population included patients with light-chain or transthyretin (ATTR) CA. Patients with diagnosed heart failure and preserved ejection fraction (HFpEF) without monoclonal gammopathy and a 99mTc-DPD scan incompatible with TTR were used as controls. Blood circulating EPCs were assessed quantitatively by the expression of VEGFR-2(+), CD34(+) and CD133(+) using flow cytometry, and functionally by the formation of colony forming units (CFUs). MTT assay was used to demonstrate cell viability. Tests were repeated 3 months following the initiation of amyloid-suppressive therapies (either ATTR-stabilizer or targeted chemotherapy) in CA patients.
Results
Our preliminary cohort included 14 CA patients (median age 74 years, 62% ATTR CA).
Patients with CA vs. patients with HFpEF (n=8) demonstrated lower expression of CD34(+)/VEGFR-2(+) cells [0.51% (IQR 0.4, 0.7) vs. 1.03% (IQR 0.6, 1.4), P=0.043] and CD133(+)/VEGFR-2(+) cells [0.35% (IQR 0.23, 0.52) to 1.07% (IQR 0.6, 1.5), P=0.003]. Functionally, no differences were noted between groups. Following the initiation of amyloid-suppressive therapies in CA patients, we observed the up-regulation of CD34(+)/VEGFR-2(+) cells [2.47% (IQR 2.1, 2.7), P<0.001] and CD133(+)/VEGFR-2(+) cells [1.38% (IQR 1.1, 1.7), P=0.003]. Moreover, functionally, active EPCs were evident microscopically by their ability to form colonies (from 0.5 CFUs [IQR 0, 1.5) to 2 CFUs (IQR 1, 3.5), P=0.023]. EPCs' viability was demonstrated by an MTT assay [0.12 (IQR 0.04, 0.12) to 0.24 (IQR 0.16, 0.3), p=0.014].
Conclusions
These preliminary results demonstrate reduced EPCs levels in CA patients indicating significant microvascular impairment. Amyloid-targeted therapies induce the activation of EPCs, thus possibly promoting endothelial regeneration. These findings may represent a novel mechanism of action of amyloid-suppressive therapies
EPCs in CA patients and during therapy
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - D Leshem-Lev
- Felsenstein Medical Research Center, Petah Tikva, Israel
| | - T Ben-Gal
- Rabin Medical Center, Department of Cardiology, Petah Tikva, Israel
| | - A Hamdan
- Rabin Medical Center, Department of Cardiology, Petah Tikva, Israel
| | | | - T Steinmetz
- Rabin Medical Center, Department of Nephrology, Petah Tikva, Israel
| | - I Kandinov
- Rabin Medical Center, Department of Cardiology, Petah Tikva, Israel
| | - R Kornowski
- Rabin Medical Center, Department of Cardiology, Petah Tikva, Israel
| | - A Eisen
- Rabin Medical Center, Department of Cardiology, Petah Tikva, Israel
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Machado J, Bruno J, Rotonda C, Siles J, Steinmetz T, Zambelli C, Vismara L, Tarquinio C. Attachement au partenaire et développement de symptômes traumatiques et anxieux-dépressifs chez les étudiants. Sexologies 2020. [DOI: 10.1016/j.sexol.2019.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Bruno J, Machado J, Ferreira Y, Munsch L, Silès J, Steinmetz T, Rotonda C, Vismara L, Tarquinio C. Impact of attachment styles in the development of traumatic symptoms in French women victims of sexual violence. Sexologies 2019. [DOI: 10.1016/j.sexol.2018.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Henry D, Hirsh V, Kubota K, Steinmetz T, Thomas G, Kang JH, Gordon D, Orlov S, Fleishman A, De Oliveira Brandao C. Randomized, double-blind, placebo (P)-controlled phase III non-inferiority study of darbepoetin alfa (D) for anemia in patients (pts) with advanced NSCLC: An ad hoc subgroup analysis of pts with baseline hemoglobin (Hb) ≤10.0 g/dL. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Schultheis B, Reuter D, Ebert MP, Siveke J, Kerkhoff A, Berdel WE, Hofheinz R, Behringer DM, Schmidt WE, Goker E, De Dosso S, Kneba M, Yalcin S, Overkamp F, Schlegel F, Dommach M, Rohrberg R, Steinmetz T, Bulitta M, Strumberg D. Gemcitabine combined with the monoclonal antibody nimotuzumab is an active first-line regimen in KRAS wildtype patients with locally advanced or metastatic pancreatic cancer: a multicenter, randomized phase IIb study. Ann Oncol 2018; 28:2429-2435. [PMID: 28961832 DOI: 10.1093/annonc/mdx343] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background This randomized study was designed to investigate the superiority of gemcitabine (gem) plus nimotuzumab (nimo), an anti-epidermal growth factor receptor monoclonal antibody, compared with gem plus placebo as first-line therapy in patients with advanced pancreatic cancer. Patients and methods Patients with previously untreated, unresectable, locally advanced or metastatic pancreatic cancer were randomly assigned to receive gem: 1000 mg/m2, 30-min i.v. once weekly (d1, 8, 15; q29) and nimo: fixed dose of 400 mg once weekly as a 30-min infusion, or gem plus placebo, until progression or unacceptable toxicity. The primary end point was overall survival (OS), secondary end points included time to progression, overall response rate, safety and quality of life. Results A total of 192 patients were randomized, with 186 of them being assessable for efficacy and safety (average age 63.6 years). One-year OS/progression-free survival (PFS) was 34%/22% for gem plus nimo compared with 19%/10% for gem plus placebo (HR = 0.69; P = 0.03/HR = 0.68; P = 0.02). Median OS/PFS was 8.6/5.1 months for gem plus nimo versus 6.0/3.4 mo in the gem plus placebo group (HR = 0.69; P = 0.0341/HR = 0.68; P = 0.0163), with very few grade 3/4 toxicities. KRAS wildtype patients experienced a significantly better OS than those with KRAS mutations (11.6 versus 5.6 months, P = 0.03). Conclusion This randomized study showed that nimo in combination with gem is safe and well tolerated. The 1-year OS and PFS rates for the entire population were significantly improved. Especially, those patients with KRAS wildtype seem to benefit. The study was registered as protocol ID OSAG101-PCS07, NCT00561990 and EudraCT 2007-000338-38.
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Affiliation(s)
- B Schultheis
- Department of Hematology/Oncology, University Bochum, Marien Hospital Herne, Herne;.
| | - D Reuter
- Oncoscience AG, Wedel (recently Schenefeld)
| | - M P Ebert
- Klinikum Rechts der Isar TU München, München
| | - J Siveke
- Klinikum Rechts der Isar TU München, München
| | | | | | - R Hofheinz
- Department of Hematology and Medical Oncology, University Medical Center Mannheim, Mannheim
| | | | - W E Schmidt
- St. Josef Hospital, Med. Klinik I, Bochum, Germany
| | - E Goker
- Ege University Medical School, Izmir, Turkey
| | - S De Dosso
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - M Kneba
- Department of Medicine, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - S Yalcin
- Hacettepe University Hospital, Ankara, Turkey
| | - F Overkamp
- Medical Practice for Oncology and Hematology, Recklinghausen
| | | | - M Dommach
- Sana-Kliniken, Medizinisches Versorgungszentrum Onkologie, Düsseldorf
| | - R Rohrberg
- Gemeinschaftspraxis und Tagesklinik fuer Haematologie, Onkologie und Gastroenterologie, Halle
| | - T Steinmetz
- Group Practice Hematology/Oncology Cologne, Cologne
| | - M Bulitta
- CRM Biometrics GmbH, Rheinbach, Germany
| | - D Strumberg
- Department of Hematology/Oncology, University Bochum, Marien Hospital Herne, Herne
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8
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Steinmetz T, Eliakim-Raz N, Goldberg E, Leibovici L, Yahav D. Association of vancomycin serum concentrations with efficacy in patients with MRSA infections: a systematic review and meta-analysis. Clin Microbiol Infect 2015; 21:665-73. [PMID: 25887712 DOI: 10.1016/j.cmi.2015.04.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 03/29/2015] [Accepted: 04/02/2015] [Indexed: 10/23/2022]
Abstract
Recent Infectious Diseases Society of America guidelines for the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections recommend maintaining vancomycin trough concentrations of 15-20 mg/L for serious infections. We conducted a systematic review and meta-analysis of all studies assessing the impact of low (<15 mg/L) vs. high (≥ 15 mg/L) vancomycin trough level on the efficacy of MRSA infections treatment. Four prospective and 12 retrospective studies were included (2003 participants). No significant difference was demonstrated between low and high vancomycin trough level for the outcome of all-cause mortality (odds ratio (OR) 1.07, 95% confidence interval (CI) 0.78-1.46, I(2) = 28%). In studies evaluating mainly MRSA pneumonia, there was significantly higher mortality with low vancomycin level (OR 1.78, 95% CI 1.11-2.84). No significant difference was demonstrated in treatment failure rates (OR 1.25, 95% CI 0.88-1.78, I(2) = 51%). However, excluding one outlier study from the analysis, treatment failure became significantly higher in patients with low vancomycin trough level (OR 1.46, 95% CI 1.12-1.91, I(2) = 16%). Microbiologic failure rates were significantly higher in patients with low vancomycin levels (OR 1.56, 95% CI 1.08-2.26, I(2) = 0%). Nephrotoxicity was significantly higher with vancomycin levels of ≥ 15 mg/L. However, no cases of irreversible renal damage were reported. Current data on the effectiveness of higher vancomycin trough levels in the treatment of MRSA infections are limited to few prospective and mainly retrospective studies. Our findings support the current recommendations for maintaining vancomycin trough levels of ≥ 15 mg/L in the treatment of severe MRSA infections, although no difference in all-cause mortality was observed.
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Affiliation(s)
| | - N Eliakim-Raz
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah-Tiqva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - E Goldberg
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah-Tiqva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - L Leibovici
- Department of Medicine E, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - D Yahav
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah-Tiqva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
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von Minckwitz G, Loibl S, Untch M, Eidtmann H, Rezai M, Fasching PA, Tesch H, Eggemann H, Schrader I, Kittel K, Hanusch C, Huober J, Solbach C, Jackisch C, Kunz G, Blohmer JU, Hauschild M, Fehm T, Nekljudova V, Gerber B, Gnauert K, Heinrich B, Prätz T, Groh U, Tanzer H, Villena C, Tulusan A, Liedtke B, Blohmer JU, Kittel K, Mau C, Potenberg J, Schilling J, Just M, Weiss E, Bückner U, Wolfgarten M, Lorenz R, Doering G, Feidicker S, Krabisch P, Deichert U, Augustin D, Kunz G, Kast K, von Minckwitz G, Nestle-Krämling C, Rezai M, Höß C, Terhaag J, Fasching P, Staib P, Aktas B, Kühn T, Khandan F, Möbus V, Solbach C, Tesch H, Stickeler E, Heinrich G, Wagner H, Abdallah A, Dewitz T, Emons G, Belau A, Rethwisch V, Lantzsch T, Thomssen C, Mattner U, Nugent A, Müller V, Noesselt T, Holms F, Müller T, Deuker JU, Schrader I, Strumberg D, Uleer C, Solomayer E, Runnebaum I, Link H, Tomé O, Ulmer HU, Conrad B, Feisel-Schwickardi G, Eidtmann H, Schumacher C, Steinmetz T, Bauerfeind I, Kremers S, Langanke D, Kullmer U, Ober A, Fischer D, Kohls A, Weikel W, Bischoff J, Freese K, Schmidt M, Wiest W, Sütterlin M, Dietrich M, Grießhammer M, Burgmann DM, Hanusch C, Rack B, Salat C, Sattler D, Tio J, von Abel E, Christensen B, Burkamp U, Köhne CH, Meinerz W, Graßhoff ST, Decker T, Overkamp F, Thalmann I, Sallmann A, Beck T, Reimer T, Bartzke G, Deryal M, Weigel M, Huober J, Weder P, Steffens CC, Lemster S, Stefek A, Ruhland F, Hofmann M, Schuster J, Simon W, Kronawitter U, Clemens M, Fehm T, Janni W, Latos K, Bauer W, Roßmann A, Bauer L, Lampe D, Heyl V, Hoffmann G, Lorenz-Salehi F, Hackmann J, Schlag R. Survival after neoadjuvant chemotherapy with or without bevacizumab or everolimus for HER2-negative primary breast cancer (GBG 44-GeparQuinto)†. Ann Oncol 2014; 25:2363-2372. [PMID: 25223482 DOI: 10.1093/annonc/mdu455] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The GeparQuinto study showed that adding bevacizumab to 24 weeks of anthracycline-taxane-based neoadjuvant chemotherapy increases pathological complete response (pCR) rates overall and specifically in patients with triple-negative breast cancer (TNBC). No difference in pCR rate was observed for adding everolimus to paclitaxel in nonearly responding patients. Here, we present disease-free (DFS) and overall survival (OS) analyses. PATIENTS AND METHODS Patients (n = 1948) with HER2-negative tumors of a median tumor size of 4 cm were randomly assigned to neoadjuvant treatment with epirubicin/cyclophosphamide followed by docetaxel (EC-T) with or without eight infusions of bevacizumab every 3 weeks before surgery. Patients without clinical response to EC ± Bevacizumab were randomized to 12 weekly cycles paclitaxel with or without everolimus 5 mg/day. To detect a hazard ratio (HR) of 0.75 (α = 0.05, β = 0.8) 379 events had to be observed in the bevacizumab arms. RESULTS With a median follow-up of 3.8 years, 3-year DFS was 80.8% and 3-year OS was 89.7%. Outcome was not different for patients receiving bevacizumab (HR 1.03; P = 0.784 for DFS and HR 0.974; P = 0.842 for OS) compared with patients receiving chemotherapy alone. Patients with TNBC similarly showed no improvement in DFS (HR = 0.99; P = 0.941) and OS (HR = 1.02; P = 0.891) when treated with bevacizumab. No other predefined subgroup (HR+/HER2-; locally advanced (cT4 or cN3) or not; cT1-3 or cT4; pCR or not) showed a significant benefit. No difference in DFS (HR 0.997; P = 0.987) and OS (HR 1.11; P = 0.658) was observed for nonearly responding patients receiving paclitaxel with or without everolimus overall as well as in subgroups. CONCLUSIONS Long-term results, in opposite to the results of pCR, do not support the neoadjuvant use of bevacizumab in addition to an anthracycline-taxane-based chemotherapy or everolimus in addition to paclitaxel for nonearly responding patients. CLINICAL TRIAL NUMBER NCT 00567554, www.clinicaltrials.gov.
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Affiliation(s)
- G von Minckwitz
- Headquarter, German Breast Group, Neu-Isenburg; Department of Gynaecology and Obstetrics, University Hospital, Frankfurt.
| | - S Loibl
- Headquarter, German Breast Group, Neu-Isenburg
| | - M Untch
- Department of Gynaecology and Obstetrics, Klinikum Berlin-Buch, Berlin
| | - H Eidtmann
- Department of Gynaecology and Obstetrics, University Hospital, Kiel
| | - M Rezai
- Breast Center, Luisenkrankenhaus, Düsseldorf
| | - P A Fasching
- Department of Gynaecology and Obstetrics, University Hospital, Erlangen
| | - H Tesch
- Department of Medical Oncology, Chop GmbH, Frankfurt
| | - H Eggemann
- Department of Gynaecology and Obstetrics, University Hospital, Magdeburg
| | - I Schrader
- Department of Gynaecology and Obstetrics, Henriettenstiftung, Hannover
| | - K Kittel
- Department of Gynaecology and Obstetrics, Praxisklinik, Berlin
| | - C Hanusch
- Department of Gynaecology and Obstetrics, Rot-Kreuz-Klinikum, München
| | - J Huober
- Department of Gynaecology and Obstetrics, University Hospital, Ulm
| | - C Solbach
- Department of Gynaecology and Obstetrics, University Hospital, Frankfurt
| | - C Jackisch
- Department of Gynaecology and Obstetrics, Sana-Klinikum, Offenbach
| | - G Kunz
- Department of Gynaecology and Obstetrics, St Johannes Hospital, Dortmund
| | - J U Blohmer
- Department of Gynaecology and Obstetrics, St Gertrauden-Hospital, Berlin
| | - M Hauschild
- Department of Gynaecology and Obstetrics, Hospital, Rheinfelden
| | - T Fehm
- Department of Gynaecology and Obstetrics, University Hospital, Tübingen
| | | | - B Gerber
- Department of Gynaecology and Obstetrics, University Hospital, Rostock, Germany
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10
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Steinmetz T, Kindler M, Lange O, Vehling-Kaiser U, Kuhn A, Hellebrand E. A prospective cohort study on the impact of darbepoetin alfa on quality of life in daily practice following anemia treatment guideline revisions. Curr Med Res Opin 2014; 30:1813-20. [PMID: 24849527 DOI: 10.1185/03007995.2014.924914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE This study aimed to evaluate the impact of darbepoetin alfa (DA) on hemoglobin (Hb) levels and quality of life (QoL) in cancer patients with anemia in current daily practice following several revisions of anemia treatment guidelines. METHODS This was a prospective, multi-center, observational study across Germany in non-myeloid cancer outpatients with chemotherapy-induced anemia treated with DA. Age, sex, cancer type, stage, and therapy, performance status, anemia status and treatment, and Hb concentrations were recorded for up to 18 weeks in a web-based registry. Optional QoL assessments were collected at baseline and at the end of DA treatment. MAIN RESULTS Of 984 eligible patients, 978 had complete anemia data, 492 also had complete QoL data. In the 978 patients, mean age was 64 (standard deviation, SD 12) years, 62% of patients were women. Breast (26%) and gastrointestinal (22%) cancer were most prevalent. Therapy was palliative in 44% of patients and initiated with curative intent in 29%. Mean baseline Hb was 9.5 (SD 0.9) g/dL, which increased by an average of 1.2 g/dL. In 67% of patients Hb increased either to 10-12 g/dL or by ≥2 g/dL; no Hb response was seen in 219 patients (22%); increases of 0 to 1, >1 to 2, and >2 g/dl were seen in 216 (22%), 265 (27%), and 278 (28%) patients, respectively. Anemia treatment did not result in any significant differences of performance status. However, QoL improvements were significantly greater in Hb responders, although a linear relationship with Hb increments was lacking. None of 47 fatal cases was considered related to treatment with DA. CONCLUSION Patients treated with DA in routine clinical practice had increases in Hb and reported improvement in QoL. Due to the uncontrolled design, no conclusions can be made regarding causality to treatment and the clinical relevance of the improvement.
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Affiliation(s)
- T Steinmetz
- Oncology outpatient clinic , Cologne , Germany
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11
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Probst RA, Steinmetz T, Wilken T, Hundertmark H, Stark SP, Wong GKL, Russell PSJ, Hänsch TW, Holzwarth R, Udem T. Nonlinear amplification of side-modes in frequency combs. Opt Express 2013; 21:11670-11687. [PMID: 23736390 DOI: 10.1364/oe.21.011670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We investigate how suppressed modes in frequency combs are modified upon frequency doubling and self-phase modulation. We find, both experimentally and by using a simplified model, that these side-modes are amplified relative to the principal comb modes. Whereas frequency doubling increases their relative strength by 6 dB, the growth due to self-phase modulation can be much stronger and generally increases with nonlinear propagation length. Upper limits for this effect are derived in this work. This behavior has implications for high-precision calibration of spectrographs with frequency combs used for example in astronomy. For this application, Fabry-Pérot filter cavities are used to increase the mode spacing to exceed the resolution of the spectrograph. Frequency conversion and/or spectral broadening after non-perfect filtering reamplify the suppressed modes, which can lead to calibration errors.
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Affiliation(s)
- R A Probst
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str 1, 85748 Garching, Germany.
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Schmitz S, Boettger I, Schnell R, Sauer A, Linde H, Severin K, Germing U, Steinmetz T. P-204 Diagnostic procedures and treatment of patients with myelodysplastic syndromes (MDS) in outpatient clinics. Results of the outpatient MDS registry. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70251-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Steinmetz T, Tschechne B, Harlin O, Klement B, Franzem M, Wamhoff J, Tesch H, Rohrberg R, Marschner N. Clinical experience with ferric carboxymaltose in the treatment of cancer- and chemotherapy-associated anaemia. Ann Oncol 2013; 24:475-482. [PMID: 23071262 PMCID: PMC3551483 DOI: 10.1093/annonc/mds338] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 07/05/2012] [Accepted: 07/12/2012] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Intravenous (i.v.) iron can improve anaemia of chronic disease and response to erythropoiesis-stimulating agents (ESAs), but data on its use in practice and without ESAs are limited. This study evaluated effectiveness and tolerability of ferric carboxymaltose (FCM) in routine treatment of anaemic cancer patients. PATIENTS AND METHODS Of 639 patients enrolled in 68 haematology/oncology practices in Germany, 619 received FCM at the oncologist's discretion, 420 had eligible baseline haemoglobin (Hb) measurements, and 364 at least one follow-up Hb measurement. Data of transfused patients were censored from analysis before transfusion. RESULTS The median total iron dose was 1000 mg per patient (interquartile range 600-1500 mg). The median Hb increase was comparable in patients receiving FCM alone (1.4 g/dl [0.2-2.3 g/dl; N = 233]) or FCM + ESA (1.6 g/dl [0.7-2.4 g/dl; N = 46]). Patients with baseline Hb up to 11.0 g/dl and serum ferritin up to 500 ng/ml benefited from FCM treatment (stable Hb ≥ 11.0 g/dl). Also patients with ferritin >500 ng/ml but low transferrin saturation benefited from FCM treatment. FCM was well tolerated, 2.3% of patients reported putative drug-related adverse events. CONCLUSIONS The substantial Hb increase and stabilisation at 11-12 g/dl in FCM-treated patients suggest a role for i.v. iron alone in anaemia correction in cancer patients.
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Affiliation(s)
- T Steinmetz
- Outpatient Clinic for Oncology and Haematology, Cologne.
| | - B Tschechne
- Klinikum Neustadt am Rübenberge, Neustadt am Rübenberge
| | | | - B Klement
- Vifor Pharma, Glattbrugg, Switzerland
| | | | | | - H Tesch
- Outpatient Clinic, Im Pruefling, Frankfurt
| | | | - N Marschner
- Practice for Oncology and Hematology, Freiburg, German
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Doerr HP, Kentischer TJ, Steinmetz T, Probst RA, Franz M, Holzwarth R, Udem T, Hänsch TW, Schmidt W. Performance of a laser frequency comb calibration system with a high-resolution solar echelle spectrograph. ACTA ACUST UNITED AC 2012. [DOI: 10.1117/12.926224] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Stark SP, Steinmetz T, Probst RA, Hundertmark H, Wilken T, Hänsch TW, Udem T, Russell PSJ, Holzwarth R. 14 GHz visible supercontinuum generation: calibration sources for astronomical spectrographs. Opt Express 2011; 19:15690-15695. [PMID: 21934930 DOI: 10.1364/oe.19.015690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report the use of a specially designed tapered photonic crystal fiber to produce a broadband optical spectrum covering the visible spectral range. The pump source is a frequency doubled Yb fiber laser operating at a repetition rate of 14 GHz and emitting sub-5 pJ pulses. We experimentally determine the optimum core diameter and achieve a 235 nm broad spectrum. Numerical simulations are used to identify the underlying mechanisms and explain spectral features. The high repetition rate makes this system a promising candidate for precision calibration of astronomical spectrographs.
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Affiliation(s)
- S P Stark
- Max Planck Institut for the Science of Light, Guenther-Scharowsky Str. 1, D-91058 Erlangen, Germany.
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Buschmann-Maiworm RE, Klein G, Baumann W, Lebahn H, Otremba BJ, Steinmetz T, Kleeberg UR, Schmitz S. Identification of 46 quality indicators for cancer care in office-based oncology practices in Germany. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e16514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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17
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Steinmetz T, Tschechne B, Virgin G, Felder M, Wamhoff J, Tesch H, Rohrberg R, Marschner N. Clinical experience with ferric carboxymaltose as treatment of cancer-associated anemia. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Steinmetz T, Totzke U, Schweigert M, Mittermüller J, Nawka S, Tesch H, Groschek M, Söling U, Hellebrand E, Tsamaloukas A. A prospective observational study of anaemia management in cancer patients - results from the German Cancer Anaemia Registry. Eur J Cancer Care (Engl) 2010; 20:493-502. [PMID: 21029222 DOI: 10.1111/j.1365-2354.2010.01230.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The use of erythropoiesis-stimulating agents (ESA) in cancer patients is still under debate. However, little is known about rationales, strategies, objectives, and effectiveness of anaemia treatments in common practice. The Cancer Anaemia Registry prospectively surveyed about 2000 cancer patients with anaemia throughout Germany. The main objectives of anaemia treatment regardless of modality were to improve quality of life (QOL) and to correct haemoglobin (Hb) levels. The Hb threshold for any anaemia treatment (means ± SD: 9.4 ± 1.2 g/dL) but not for blood transfusions (8.7 ± 1.0 g/dL) depended on cancer type and treatment strategy. Physicians preferred ESA as first-line treatment to prevent transfusions in patients with solid tumours, if they thought that chemotherapy caused the anaemia. If they suspected other causes or patients had lymphoproliferative malignancies, physicians preferred transfusions or attempted to correct underlying disorders; both mainly to improve QOL or prognosis. Effectiveness of all strategies was comparable. However, ESA most effectively prevented transfusions; primary transfusions appeared less suitable for correcting Hb or improving QOL. Using supportive treatments for QOL improvement was common whereas diagnostic measures and intravenous iron therapy were underused. Prospective clinical trials using QOL as end point and evaluating diagnostics in cancer-associated anaemia are warranted.
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Affiliation(s)
- T Steinmetz
- Outpatient Clinic, Sachsenring, Cologne, Germany.
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van Zoest T, Gaaloul N, Singh Y, Ahlers H, Herr W, Seidel ST, Ertmer W, Rasel E, Eckart M, Kajari E, Arnold S, Nandi G, Schleich WP, Walser R, Vogel A, Sengstock K, Bongs K, Lewoczko-Adamczyk W, Schiemangk M, Schuldt T, Peters A, Könemann T, Müntinga H, Lämmerzahl C, Dittus H, Steinmetz T, Hänsch TW, Reichel J. Bose-Einstein Condensation in Microgravity. Science 2010; 328:1540-3. [DOI: 10.1126/science.1189164] [Citation(s) in RCA: 212] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- T. van Zoest
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - N. Gaaloul
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Y. Singh
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - H. Ahlers
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - W. Herr
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - S. T. Seidel
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - W. Ertmer
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - E. Rasel
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - M. Eckart
- Institut für Quantenphysik, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - E. Kajari
- Institut für Quantenphysik, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - S. Arnold
- Institut für Quantenphysik, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - G. Nandi
- Institut für Quantenphysik, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - W. P. Schleich
- Institut für Quantenphysik, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - R. Walser
- Institut für Angewandte Physik, Technische Universität Darmstadt, Hochschulstrasse 4A, 64289 Darmstadt, Germany
| | - A. Vogel
- Institut für Laser-Physik, Universität Hamburg, 22761 Hamburg, Germany
| | - K. Sengstock
- Institut für Laser-Physik, Universität Hamburg, 22761 Hamburg, Germany
| | - K. Bongs
- Midlands Ultracold Atom Research Centre, Birmingham B15 2TT, UK
| | | | - M. Schiemangk
- Humboldt-Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany
| | - T. Schuldt
- Humboldt-Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany
| | - A. Peters
- Humboldt-Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany
| | - T. Könemann
- Center of Applied Space Technology and Microgravity (ZARM), Universität Bremen, Am Fallturm, 28359 Bremen, Germany
| | - H. Müntinga
- Center of Applied Space Technology and Microgravity (ZARM), Universität Bremen, Am Fallturm, 28359 Bremen, Germany
| | - C. Lämmerzahl
- Center of Applied Space Technology and Microgravity (ZARM), Universität Bremen, Am Fallturm, 28359 Bremen, Germany
| | - H. Dittus
- Center of Applied Space Technology and Microgravity (ZARM), Universität Bremen, Am Fallturm, 28359 Bremen, Germany
| | - T. Steinmetz
- Max-Planck-Institut für Quantenoptik and Sektion Physik der Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany
| | - T. W. Hänsch
- Max-Planck-Institut für Quantenoptik and Sektion Physik der Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany
| | - J. Reichel
- Laboratoire Kastler-Brossel de l’Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, France
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Wilken T, Lovis C, Manescau A, Steinmetz T, Pasquini L, Lo Curto G, Hänsch TW, Holzwarth R, Udem T. High-precision calibration of spectrographs. ACTA ACUST UNITED AC 2010. [DOI: 10.1111/j.1745-3933.2010.00850.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Steinmetz T, Schmitz S, Tsamaloukas A, Rohrberg R, Thomas L. Use of analysis of iron metabolism with CRP-dependent ferritin index and reticulocyte hemoglobin to determine treatment strategy for chemotherapy-related anemia. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20510 Background: Intravenous iron (IV Fe) can increase the efficacy of erythropoiesis stimulating agents (ESA). However it is still unsettled whether all patients (pts) do so. We conducted a phase II trial to analyze various parameters for the addition of IV Fe to ESA in chemotherapy treated anemic cancer pts. Methods: Pts with an indication for ESA following the EORTC guidelines and a serum ferritin (SF) level ≥20ng/ml were screened in a central laboratory. Those with a C-reactive protein (CRP)-dependent ferritin index (FI = soluble transferrin receptor (sTFR)/log ferritin ratio) above threshold (* FI ≥3.2 if CRP <5mg/l, or FI >2.0 if CRP ≥5 mg/l) were treated with iron only. Those with a sub-threshold FI received Epoetin beta (Epo) 30.000E/wk sc., and from these, those with a reticulocyte hemoglobin (Hb) content (CHr) ≤28pg/ml additionally received Fe-saccharat 200mg/wk iv up to 1g. Results: 11 centers recruited 303 pts (median age 65y, male 41%) from 10/04 to 10/06; 230 (76%) had a sub threshold FI (group Q I+IV), of whom 23 (8%, Q IV) had a CHr ≤28pg. 73 pts (24%) had an increased FI (Q II+III), indicating relative iron deficiency, of whom 27 (9%, Q III) had a CHr ≤28pg. There was no correlation between assignment to one of the groups (Q I-IV) and age, gender, body-mass-index, type or stage of tumor, endogenous Epo level, and hematokrit. In 265 pts evaluable for response Hb on d1 was 9.8 ±1.2 g/dl (mean ± SD) and 10.7 ±1.3 g/dl in 4th week. Mean increase of Hb from d1 to 8th week was 1.4 ± 1.7 g/dl. 36% pts received a transfusion within 12 weeks and 18% after the 4th week. The table shows response according to groups. Conclusions: At study onset we expected nearly all pts to receive Epo and searched for those who might have a benefit from additional IV Fe. However, we conclude in synopsis with other studies, that all pts might have a benefit from IV Fe but only 76%, those with a sub-threshold FI, have a benefit from Epo. [Table: see text] [Table: see text]
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Affiliation(s)
- T. Steinmetz
- Outpatient Clinic for Hematology and Oncology, Cologne, Germany; Outpatient Clinic, Cologne, Germany; Outpatient Clinic, Hilden, Germany; Outpatient Clinic, Halle, Germany; Krankenhaus Nordwest, Frankfurt Main, Germany
| | - S. Schmitz
- Outpatient Clinic for Hematology and Oncology, Cologne, Germany; Outpatient Clinic, Cologne, Germany; Outpatient Clinic, Hilden, Germany; Outpatient Clinic, Halle, Germany; Krankenhaus Nordwest, Frankfurt Main, Germany
| | - A. Tsamaloukas
- Outpatient Clinic for Hematology and Oncology, Cologne, Germany; Outpatient Clinic, Cologne, Germany; Outpatient Clinic, Hilden, Germany; Outpatient Clinic, Halle, Germany; Krankenhaus Nordwest, Frankfurt Main, Germany
| | - R. Rohrberg
- Outpatient Clinic for Hematology and Oncology, Cologne, Germany; Outpatient Clinic, Cologne, Germany; Outpatient Clinic, Hilden, Germany; Outpatient Clinic, Halle, Germany; Krankenhaus Nordwest, Frankfurt Main, Germany
| | - L. Thomas
- Outpatient Clinic for Hematology and Oncology, Cologne, Germany; Outpatient Clinic, Cologne, Germany; Outpatient Clinic, Hilden, Germany; Outpatient Clinic, Halle, Germany; Krankenhaus Nordwest, Frankfurt Main, Germany
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Senegas A, Villard O, Neuville A, Marcellin L, Pfaff AW, Steinmetz T, Mousli M, Klein JP, Candolfi E. Toxoplasma gondii-induced foetal resorption in mice involves interferon-gamma-induced apoptosis and spiral artery dilation at the maternofoetal interface. Int J Parasitol 2009; 39:481-7. [PMID: 18838076 DOI: 10.1016/j.ijpara.2008.08.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 08/07/2008] [Accepted: 08/18/2008] [Indexed: 02/09/2023]
Abstract
The severity of congenital toxoplasmosis depends on the stage of the pregnancy at which infection takes place. Infection during the first trimester generally leads to miscarriage, through an unknown mechanism. Toxoplasma gondii infection is normally controlled by a strong Th1-type response with IFN-gamma production. To investigate the mechanisms of foetal resorption induced by T. gondii, pregnant Swiss-Webster mice were infected 1 day post coïtum with the avirulent Me49 strain. Mated recipients were examined at mid-gestation. Few parasites and no cytolytic effects were detected 10 days post coïtum in implantation sites undergoing resorption. Resorption was accompanied by haemorrhage, spiral artery dilation, hypocellularity of the decidua basalis, apoptosis of placental cells, a decline in uterine mature natural killer cell numbers, increased indoleamine 2,3-dioxygenase mRNA levels and reduced IL-15 mRNA levels. Given the role of IFN-gammaR(-/-) in non-infectious abortive processes, IFN-gammaR(-/-) mice were used to investigate its local role in T. gondii-induced foetal resorption. IFN-gammaR(-/-) mice showed 50% less foetal resorption than their wild-type counterparts, and spiral artery dilation and placental cell apoptosis were both abolished. These results strongly suggest that, at least in mice, T. gondii-induced abortion in early gestation is not due to a direct action of the parasite at the maternofoetal interface but rather to massive IFN-gamma release.
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Affiliation(s)
- A Senegas
- Institut de Parasitologie et de Pathologie Tropicale, UPRES-EA 3950, Université Louis Pasteur, Strasbourg F-67000, France
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Steinmetz T, Totzke U, Söling U, Groschek M, Mittermüller J, Schweigert M, Tesch H, Nawka S, Schmitz S, Tsamaloukas A. Hemoglobin levels that trigger erythropoiesis-stimulating agent treatment decisions for cancer-associated anemia--examination of practice in Germany. Curr Med Res Opin 2008; 24:2751-6. [PMID: 18715527 DOI: 10.1185/03007990802377057] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Given the safety concerns regarding off-label use of erythropoiesis-stimulating agents (ESAs) in the treatment of cancer-associated anemia, data from the German Cancer Anemia Registry (CAR) were analyzed to examine whether current practice in Germany adheres to treatment guidelines. RESEARCH DESIGN AND METHODS CAR was a web-based registry gathering patient data for 12 weeks following anemia diagnosis or until the primary treatment objective was achieved. RESULTS Of over 2000 patients surveyed, 783 were treated with ESAs. Treatment was primarily aimed at improvement of quality of life (37.3%), hemoglobin correction (32.7%), and prevention of transfusions (24.4%). The average hemoglobin level triggering ESA treatment was 9.7 g/dL (6.0 mmol/L), however, starting levels varied with cancer type. For 67.8% of patients, transfusions could be avoided. ESA treatment was stopped at 11.2 g/dL (7.0 mmol/L) and maximum hemoglobin levels during the study averaged 11.8 g/dL (7.3 mmol/L). In 4.8% of the women and 6.0% of the men, maximum hemoglobin levels were >14 g/dL (8.7 mmol/L); in 15.6% and 9.1%, respectively, levels were between 13 and 14 g/dL. The median hemoglobin level triggering transfusion was 8.3 g/dL (5.2 mmol/L), irrespective of the malignant disease. CONCLUSION Current use of ESAs for the treatment of cancer-associated anemia in Germany appears to be in good compliance with treatment guidelines. Similar results obtained from other studies in Europe and the US indicate this to be true beyond Germany.
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Affiliation(s)
- T Steinmetz
- Oncological Outpatient Clinics in Cologne, Germany.
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Steinmetz T, Wilken T, Araujo-Hauck C, Holzwarth R, Hansch TW, Pasquini L, Manescau A, D'Odorico S, Murphy MT, Kentischer T, Schmidt W, Udem T. Laser Frequency Combs for Astronomical Observations. Science 2008; 321:1335-7. [DOI: 10.1126/science.1161030] [Citation(s) in RCA: 491] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Bart HJ, Drumm C, Steinmetz T. Kolonnenskalierung mit Miniplants, Populationsbilanzen und CFD. CHEM-ING-TECH 2008. [DOI: 10.1002/cite.200750730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Elghouzzi MH, Senegas A, Steinmetz T, Guntz P, Barlet V, Assal A, Gallian P, Volle P, Chuteau C, Beolet M, Berrebi S, Filisetti D, Doderer C, Abdelrahman T, Candolfi E. Multicentric evaluation of the DiaMed enzyme-linked immunosorbent assay malaria antibody test for screening of blood donors for malaria. Vox Sang 2007; 94:33-40. [PMID: 18021184 DOI: 10.1111/j.1423-0410.2007.00998.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The risk of malaria transmission by blood transfusion is critical due to extensive travel from endemic areas to non-endemic areas. An enzyme-linked immunosorbent assay (ELISA) malaria antibody test has been developed that is claimed to perform better than the immunofluorescence assay test (IFAT). The assay contains antigens to both Plasmodium falciparum and Plasmodium vivax. A multicentre study was performed to evaluate the appropriateness of replacing the IFAT by the new ELISA test. MATERIAL AND METHODS Nine French blood banks participated in this multicentre study. Two panels of samples were evaluated. The first included 4163 samples from healthy donors and was used to calculate clinical specificity of the assay. The second involved 10,995 samples, either collected retrospectively or prospectively from malaria-risk donors , was used to assess the comparative performance of the ELISA and IFAT. Discordant samples were further tested using an in-house IFAT and also tested for presence of Plasmodium DNA by polymerase chain reaction. RESULTS The ELISA showed a clinical specificity of 99.02%. In the malaria-risk blood donors groups, the retrospective group showed a concordance rate of 92.6% (k = 0.90), while the prospective group showed a concordance rate of 97% (k = 0.46). After confirming the discordant sample results by an in-house IFAT, the k index increased to 0.81. None of the discordant samples was shown to contain Plasmodium DNA. CONCLUSION The performance of the ELISA test in this study has confirmed its potential as a new screening test for use in blood banks, as an alternative to the IFAT in prevention of transfusion-transmitted malaria in non-endemic countries.
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Affiliation(s)
- M-H Elghouzzi
- Etablissement Français du Sang Ile de France, 94150 Rungis, France
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Boeck S, Weigang-Köhler K, Fuchs M, Kettner E, Quietzsch D, Trojan J, Stötzer O, Zeuzem S, Lordick F, Köhne CH, Kröning H, Steinmetz T, Depenbrock H, Heinemann V. Second-line chemotherapy with pemetrexed after gemcitabine failure in patients with advanced pancreatic cancer: a multicenter phase II trial. Ann Oncol 2007; 18:745-51. [PMID: 17229775 DOI: 10.1093/annonc/mdl463] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND A standard second-line chemotherapy regimen has yet to be defined for patients with gemcitabine (Gem)-refractory advanced pancreatic cancer (PC). PATIENTS AND METHODS In this multicenter phase II trial, patients with unresectable or metastatic PC who had progressed on single-agent Gem or a Gem-containing regimen received pemetrexed 500 mg/m(2) as a 10-min infusion every 3 weeks until disease progression or occurrence of unacceptable toxicity. The primary end point was the 3-month survival rate. RESULTS A total of 192 treatment cycles were given to 52 patients. The overall response rate was 3.8% (two partial responses); 10 patients (19.2%) experienced stable disease, nine of them for >12 weeks. At least one CA 19-9 reduction > or =50% occurred in 12 patients (23.1%). The 3-month survival rate was 75% (95% confidence interval 63.2% to 86.8%), the median time to tumor progression was 7 weeks (range 1-62 weeks) and the median overall survival time was 20 weeks (range 1-84 weeks). Grade 3/4 hematological toxic effects included (percent of patients): neutropenia (17.3%), thrombocytopenia (5.8%) and anemia (3.8%). The most frequent non-hematological toxic effects were diarrhea, nausea and stomatitis/pharyngitis (23.1% each). CONCLUSION Pemetrexed is a safe treatment option with moderate activity in patients with advanced PC after failure of Gem.
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Affiliation(s)
- S Boeck
- Department of Internal Medicine III, University Hospital Grosshadern, Ludwigs-Maximilians University, Marchioninistrasse 15, D-81377 Munich, Germany
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Miller KW, Ray P, Steinmetz T, Hanekamp T, Ray B. Gene organization and sequences of pediocin AcH/PA-1 production operons in Pediococcus and Lactobacillus plasmids. Lett Appl Microbiol 2005; 40:56-62. [PMID: 15613003 DOI: 10.1111/j.1472-765x.2004.01627.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To determine the locations and sequences of pediocin AcH production genes in Pediococcus parvulus ATO77 from vegetables, Lactobacillus plantarum WHE92 from Muenster cheese, and a lactose-fermenting isolate Pediococcus pentosaceus S34 from buffalo milk. METHODS AND RESULTS Plasmid curing, Southern blot hybridization, and DNA sequence analysis indicate that pediocin AcH production genes are encoded by highly similar operons in unique plasmids designated pATO77 from P. parvulus ATO77, pS34 from P. pentosaceus S34, and pWHE92 from Lact. plantarum WHE92. Structure, immunity and secretion system genes are linked together in the operons, and the promoter sequences are the same. The amino acid sequences of the encoded proteins are highly conserved between plasmids. CONCLUSIONS Pediocin AcH production genes are located within a plasmid-borne operon cassette in all lactic acid bacterial strains examined to date. All four genes needed for production are present within a single plasmid in each strain. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first demonstration that the expression of a class IIa bacteriocin is directed by a common gene cassette that has been disseminated to unique plasmids in different genera of lactic acid bacteria. These plasmids should be useful for expressing pediocin AcH in Pediococcus and Lactobacillus strains used in food production.
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Affiliation(s)
- K W Miller
- Department of Molecular Biology, University of Wyoming, Laramie, WY 82071-3944, USA.
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Steinmetz T, Schmidt S, Bart HJ. Untersuchung der Hydrodynamik in gerührten Kühni-Extraktionskolonnen zur Modellierung mit dem Tropfenpopulationsbilanzmodell. CHEM-ING-TECH 2004. [DOI: 10.1002/cite.200490374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Goetz M, Schiel X, Heussel H, Steinmetz T, Hiddemann W, Weiss M. Elevation of soluble tumor necrosis factor receptor II in non-febrile patients with acute myeloid leukemia. Eur J Med Res 2002; 7:487-90. [PMID: 12568977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
BACKGROUND Tumor necrosis factor alpha (TNF) and its cellular and soluble (s) receptors (TNF-R) are important mediators in acute myeloid leukemia (AML) and infectious complications during cytoreductive therapy. We investigated the serum concentrations of sTNF-RII in previously untreated patients with AML at the onset of cytoreductive therapy and in non-febrile chemotherapy-associated neutropenia. PATIENTS AND METHODS Of 54 eligible patients with AML, serum concentrations of sTNF-RII could be evaluated in 25 non-neutropenic, non-febrile and in 11 neutropenic, non-febrile patients. RESULTS At baseline, non-neutropenic, non-febrile AML patients showed high median serum sTNF-RII concentrations of 3,804 pg/mL. In neutropenia, there was a non-significant trend (p = 0.18) to lower median sTNF-RII levels of 3,246 pg/mL. CONCLUSIONS Serum sTNF-RII concentrations in non-febrile AML patients before chemotherapy are in the range of levels reached in uncomplicated febrile episodes in otherwise healthy individuals. This must be taken into account when evaluating the cytokine profile for sepsis in patients with therapy-associated neutropenia. Concentrations are still elevated in neutropenia, suggesting that a normal number of leukocytes is not necessarily required for the activation of the TNF ligand/TNF receptor system in AML.
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Affiliation(s)
- M Goetz
- Medizinische Klinik, Universität Mainz, München, Germany.
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Cornely OA, Bethe U, Salzberger B, Franzen C, Hartmann P, Steinmetz T, Fätkenheuer G, Seifert H, Diehl V, Schrappe M. Randomized controlled monocentric comparison of once daily ceftriaxone with tobramycin and cefotaxime three times daily with tobramycin in neutropenic fever. Ann Hematol 2001; 80:103-8. [PMID: 11261319 DOI: 10.1007/s002770000247] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A prospective, randomized, controlled monocentric trial was performed to evaluate the efficacy and safety of once daily ceftriaxone 2 g plus tobramycin 5 mg/kg in comparison to cefotaxime 2 g t.i.d. plus tobramycin 5 mg/kg qd in the treatment of neutropenic fever. In cases of fever > or = 38.5 degrees C and a neutrophil count below 1000/microliter, patients with hematological malignancies were assigned to ceftriaxone or cefotaxime, each with tobramycin. The primary endpoint was defined as defervescence < 37.5 degrees C on day 4-6 followed by at least 7 afebrile days. Secondary endpoints were overall response, defined as defervescence on day 25 and toxicity. There were 160 episodes of 114 patients included. Fever of unknown origin accounted for 79 episodes (51%), microbiologically defined infection for 36 (23%), clinically defined infection for 27 (17%), and both clinically and microbiologically defined infection for 14 episodes (9%). On an intent-to-treat basis 156 episodes could be evaluated for the primary endpoint. Ceftriaxone plus tobramycin and cefotaxime plus tobramycin resulted in a primary response in 46.9% and 45.3%, respectively. Overall response was achieved on study day 25 in 87.7% and 80%, respectively. No significant difference in toxicity was observed. Once-daily ceftriaxone plus tobramycin was not inferior to cefotaxime t.i.d. plus tobramycin qd in the empirical treatment of neutropenic fever.
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Affiliation(s)
- O A Cornely
- Department of Internal Medicine I, University Hospital of Cologne, 50924 Cologne, Germany.
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Steinmetz T, Fortmann-Mölling B, Wenisch S, Leonhäuser IU. Availability of magnesium from various commercially available oral preparations in a variety of dosage forms: comparative in vitro study. J Med Food 1999; 2:65-71. [PMID: 19281350 DOI: 10.1089/jmf.1999.2.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The relative dialysability of magnesium in a number of different inorganic and organic magnesium-containing compounds from ten commercially available products was investigated using an in vitro method. Reference values were provided by tests carried out in parallel using comparable quantities of pure magnesium compounds, as contained in the products. The results demonstrated that the excipients generally had a positive effect on the relative availability of magnesium. Furthermore, the dialysed magnesium levels were lower in capsules and coated tablets than in granulates, chewable tablets, and effervescent tablets. It can be concluded that substances such as citric acid, lactose, and sucrose have a positive effect, whereas gel-based excipients and coatings have a negative effect on the availability of magnesium.
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Wenisch S, Fortmann B, Steinmetz T, Kriete A, Leiser R, Bitsch I. 3-D confocal laser scanning microscopy used in morphometric analysis of rat Purkinje cell dendritic spines after chronic ethanol consumption. Anat Histol Embryol 1998; 27:393-7. [PMID: 9972647 DOI: 10.1111/j.1439-0264.1998.tb00213.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
A confocal laser scanning microscope (with a 543 nm laser) was used for imaging rat Purkinje cell dendritic spines at high 3-D resolution. In a nutritionally controlled study of the rat, 5 months of ethanol consumption was demonstrated to alter the spines of Purkinje cell dendrites in rat cerebellum. Intact spines showed significant elongation after ethanol exposure, whereas this neuromorphological alteration could not be detected in controls. Spine elongation could be regarded as compensative growth of spines in search of new synaptic contacts due to alcohol induced cell loss.
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Affiliation(s)
- S Wenisch
- Institute of Veterinary-Anatomy, -Histology and -Embryology, University of Giessen, Germany
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Wenisch S, Steinmetz T, Fortmann B, Leiser R, Bitsch I. Can megadoses of thiamine prevent ethanol-induced damages of rat hippocampal CA1 pyramidal neurones? Z Ernahrungswiss 1996; 35:266-72. [PMID: 8896289 DOI: 10.1007/bf01625691] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The specific aim of this study was to evaluate whether high doses of thiamine can compensate or prevent alcohol-induced damages of rat hippocampus CA1 pyramids. Twenty weeks of ethanol consumption together with a dose of thiamine in the range of 1.19 mg/100 mg food induced significant enlargement (parameters measured were length of the whole spine and diameter of the end-bulb) of dendritic spines. Hypertrophy can be interpreted as a compensation process due to alcohol-induced cell death because viable spines are in search of new synaptic contacts. In contrast, dendritic spines of the alcohol group fed at the same time with a high dose of thiamine (119 mg/ 100 g food = megavitamintherapy) showed normal data concerning these parameters. From these results it may be concluded that a megavitamin therapy supports a neuron's carbohydrate metabolism and therefore could be able to prevent or reduce alcohol-induced damages of hippocampal CA1 pyramidal cells in rat central nervous system.
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Affiliation(s)
- S Wenisch
- Institut für Veterinär-Anatomie, -Histologie und -Embryologie, Giessen
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Diehl V, Steinmetz T. [Taxanes--a new generation of cytostatic drugs]. Med Klin Suppl 1993; 2:3. [PMID: 7904717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Diehl V, Steinmetz T. [Taxanes--a new generation of cytostatic drugs]. Med Klin (Munich) 1993; 88 Suppl 2:3. [PMID: 7907773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Schwonzen M, Pohl C, Steinmetz T, Seckler W, Vetten B, Thiele J, Wickramanayake D, Diehl V. Immunophenotyping of low-grade B-cell lymphoma in blood and bone marrow: poor correlation between immunophenotype and cytological/histological classification. Br J Haematol 1993; 83:232-9. [PMID: 8457472 DOI: 10.1111/j.1365-2141.1993.tb08277.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Results of immunophenotypic examinations of peripheral blood and/or bone marrow (BM), involved in low-grade B-cell non-Hodgkin's lymphomas, were compared with the results of cytomorphological and histopathological examinations in 133 adult patients. 69 cases of chronic B-lymphocytic leukaemia (B-CLL), 16 centrocytic (CC) lymphomas, 14 centroblastic-centrocytic (CB/CC) lymphomas, 15 immunocytomas (IC), 10 cases of hairy cell leukaemia (HCL), four prolymphocytic leukaemias (PLL), two B-CLL in transformation, one splenic lymphoma with villous lymphocytes (SLVL), one hairy cell leukaemia variant (HCL-V), and one lymphocytic lymphoma (LC) were classified according to the Kiel and/or FAB classification. Leukaemic disease was found in 105 cases. The following markers were used for immunocytology (APAAP technique) of blood and/or BM smears: CD19, CD5, CD10, CD11c, CD14, CD21, CD22, CD23, CD25, CD38 and TdT. All cases tested showed CD19, but no TdT expression. Every case of HCL had a distinct phenotype with expression of CD11c, CD22 and CD25 and the lack of CD5 and CD23 antigens. In all other NHL cases a very heterogenous expression of CD-antigens with no significant correlations to the cytomorphological subtypes was found. The expression of CD5 is a frequent but inconstant finding in lymphoproliferative diseases other than B-CLL, so 50% of CB/CC, 75% of CC and 80% of IC were CD5 positive. Our results indicate that, with the exception of HCL, the diagnostic relevance of immunophenotyping for the classification of cytomorphologically and histopathologically defined subtypes in blood and/or BM is of very limited value.
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Schwonzen M, Pohl C, Steinmetz T, Wickramanayake PD, Thiele J, Diehl V. Bone marrow involvement in non-Hodgkin's lymphoma: increased diagnostic sensitivity by combination of immunocytology, cytomorphology and trephine histology. Br J Haematol 1992; 81:362-9. [PMID: 1382545 DOI: 10.1111/j.1365-2141.1992.tb08240.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Diagnostic results from cytomorphology and immunocytology of aspirated bone marrow (BM) were compared with the findings from standard trephine histology of 100 adult patients with non-leukaemic non-Hodgkin's lymphomas (NHL) in a retrospective study. Immunocytological investigations were performed by the immunoenzymatic APAAP-technique on BM smears monoclonal antibodies against CD19, Cd3, CD10 or TdT antigens and determination of positive cells in relation to total BM leucocytes. Corresponding results were obtained for trephine histology and for the combination of cytomorphology and immunocytology in 93/100 cases. Four cases with BM involvement by trephine histology were missed by the combination of immunocytology and cytomorphology. In turn, three cases negative by trephine histology, were found to be positive by the combination of immunocytology and cytomorphology. Immunocytochemistry considerably increased the number of true positive detected BM-infiltrations by cytomorphology in low grade B-cell lymphoma from 58% to 97%. For the diagnosis of BM involvement in high-grade NHL cytomorphology of the aspirate was of equal sensitivity to the biopsy and was always confirmed by immunocytology. The high diagnostic sensitivity of immunocytology was mainly due to high B-cell counts in BM involved by B-cell lymphoma (means = 38%, s = 23) in contrast to low B-cell counts in BM not involved by NHL (means = 4.5%, s = 3.8). We conclude from our data that immunocytology in addition to standard cytomorphology improves diagnostic sensitivity in the detection of BM involvement by NHL.
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MESH Headings
- Adolescent
- Adult
- Antibodies, Monoclonal
- Antigens, CD/analysis
- Antigens, CD/immunology
- Antigens, CD19
- Antigens, Differentiation, B-Lymphocyte/analysis
- Antigens, Differentiation, B-Lymphocyte/immunology
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- B-Lymphocytes/physiology
- Biopsy
- Bone Marrow/pathology
- Bone Marrow/physiology
- CD3 Complex/analysis
- CD3 Complex/immunology
- DNA Nucleotidylexotransferase/immunology
- Histocytochemistry
- Humans
- Immunohistochemistry
- Lymphoma, B-Cell/diagnosis
- Lymphoma, B-Cell/epidemiology
- Lymphoma, B-Cell/pathology
- Lymphoma, Non-Hodgkin/diagnosis
- Lymphoma, Non-Hodgkin/epidemiology
- Lymphoma, Non-Hodgkin/pathology
- Neprilysin/analysis
- Neprilysin/immunology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/diagnosis
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/epidemiology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Retrospective Studies
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- T-Lymphocytes/physiology
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Steinmetz T. [Immunotherapy with interleukin 2]. Krankenpfl J 1991; 29:237-42. [PMID: 1861441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Schaadt M, Pfreundschuh M, Lorscheidt G, Peters KM, Steinmetz T, Diehl V. Phase II study of recombinant human tumor necrosis factor in colorectal carcinoma. J Biol Response Mod 1990; 9:247-50. [PMID: 2341863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fifteen patients with colorectal carcinoma received a 30-min intravenous infusion of recombinant human tumor necrosis factor (rHuTNF) to investigate the value of rHuTNF in the treatment of colorectal carcinoma. Patients received 5 x 10(5) U/m2 (217 micrograms/m2) on day 1, and in the absence of serious side effects 10 x 10(5) U/m2 (435 micrograms/m2) on day 3 and 15 x 10(5) U/m2 (652 micrograms/m2) on day 5. The cycle was repeated on day 28. Full dose escalation was possible in all patients. There was a minor response in one patient (disappearance of retroperitoneal lymph nodes). All other patients showed progressive disease. At the dose and schedule used, rHuTNF had minimal therapeutic activity in colorectal carcinoma.
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Affiliation(s)
- M Schaadt
- Medizinische Klinik I, University of Cologne, Cologne, F.R.G
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Steinmetz T, Schaadt M, Gähl R, Schenk V, Diehl V, Pfreundschuh M. Phase I study of 24-hour continuous intravenous infusion of recombinant human tumor necrosis factor. J Biol Response Mod 1988; 7:417-23. [PMID: 3183683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Sixteen patients with cancer were treated with a 24-h continuous intravenous infusion of recombinant human tumor necrosis factor (rHuTNF) to investigate the spectrum of side-effects, the maximum tolerated dose, the pharmacokinetics, and possible antitumor effects. Fever, chills, and flu-like symptoms were the most common side-effects. The maximum tolerated dose was 6 x 10(5) U/m2 (261 micrograms/m2). Severe hypotension, fluid retention, watery diarrhea, and central nervous deficits culminated in a profound prostration as the dose-limiting toxicity. No allergic reactions, positive skin tests, or antibodies against rHuTNF were observed. Plasma levels of rHuTNF were detected at doses of greater than or equal to 3 x 10(5) U/ml2. Maximal plasma levels were 19 U/ml (8.2 ng/ml). No objective tumor responses were observed.
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Affiliation(s)
- T Steinmetz
- Medizinische Klinik I, University of Cologne, F.R.G
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Ollenschläger G, Steinmetz T, Hoffmann A, Fischer H, Schindler J, Allolio B. [Differential diagnosis of tumor-associated hypoglycemia--exemplified by an insulinoma and a hemangiopericytoma. Case reports and review of the literature]. Med Klin (Munich) 1988; 83:391-7, 428. [PMID: 2841561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Pfreundschuh M, Lehmann M, Steinmetz T, Kirchner HH, Diehl V. Monoclonal glucose-oxidase-anti-glucose-oxidase (GAG) immunosandwich assay for the detection of monoclonal antibodies on routine hematological smears. Blut 1988; 56:125-30. [PMID: 3281728 DOI: 10.1007/bf00320018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A murine monoclonal antibody specific for aspergillus niger glucose oxidase has been prepared and used in an unlabeled antibody bridge technique for the detection of monoclonal antibodies. This procedure--the monoclonal glucose oxidase anti-glucose oxidase (GAG) immunosandwich assay--provides excellent immunocytochemical labeling of routine hematological films in combination with optimal preservation of cellular details. In contrast to conventional immunofluorescence procedures, routine hematological films can be used, and these can be stored before and after the immunolabeling. Compared with other immunoenzyme techniques such as those using alkaline phosphatase or peroxidase, the GAG assay is as sensitive and has the advantage that no problems with endogenous enzyme activity are encountered. The availability of alcohol-resistant disclosing reagents allows for routine hematological counterstaining which provides a very clear visualization of both the immunoreaction and the individual morphology of the blood cells.
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Affiliation(s)
- M Pfreundschuh
- Medizinische Universitätsklinik I, Köln, Federal Republic of Germany
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