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Schmid R, Efinger K, Schulz C, Sparwasser C, Martinschek A. [Vena cava cement embolism after percutaneous kyphoplasty. Interventional radiological recovery in metastasized urothelial cancer]. Urologe A 2013; 53:62-6. [PMID: 24113993 DOI: 10.1007/s00120-013-3315-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
For patients suffering from vertebral metastases vertebroplasty and kyphoplasty offer two relatively new treatment options for the stabilization of vertebral compression fractures. This can help to reduce the fracture-associated symptoms and can improve the quality of life. Cement extravasation is a specific complication of this therapy. This article reports a case of multiple cement paravasations in the paravertebral veins, the vena cava inferior and peripheral segmental and subsegmental pumonary arteries after kyphoplasty of an extensive pathological vertebral body fracture in a 64-year-old man suffering from metastatic urothelial cancer.
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Poschenrieder F, Schulz C, Hamer O. Eosinophile Pneumonie medikamentös-toxischer Genese durch Dapsone. ROFO-FORTSCHR RONTG 2013; 186:178-9. [DOI: 10.1055/s-0033-1350517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Witzel O, Klein A, Meffert C, Wagner S, Kaiser S, Schulz C, Ebert V. VCSEL-based, high-speed, in situ TDLAS for in-cylinder water vapor measurements in IC engines. OPTICS EXPRESS 2013; 21:19951-19965. [PMID: 24105541 DOI: 10.1364/oe.21.019951] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report the first application of a vertical-cavity surfaceemitting laser (VCSEL) for calibration- and sampling-free, high-speed, in situ H2O concentration measurements in IC engines using direct TDLAS (tunable diode laser absorption spectroscopy). Measurements were performed in a single-cylinder research engine operated under motored conditions with a time resolution down to 100 μs (i.e., 1.2 crank angle degrees at 2000 rpm). Signal-to-noise ratios (1σ) up to 29 were achieved, corresponding to a H2O precision of 0.046 vol.% H2O or 39 ppm · m. The modulation frequency dependence of the performance was investigated at different engine operating points in order to quantify the advantages of VCSEL against DFB lasers.
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Giessen C, Fischer von Weikersthal L, Laubender RP, Stintzing S, Modest DP, Schalhorn A, Schulz C, Heinemann V. Evaluation of prognostic factors in liver-limited metastatic colorectal cancer: a preplanned analysis of the FIRE-1 trial. Br J Cancer 2013; 109:1428-36. [PMID: 23963138 PMCID: PMC3776986 DOI: 10.1038/bjc.2013.475] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 06/24/2013] [Accepted: 07/23/2013] [Indexed: 02/07/2023] Open
Abstract
Background: Liver-limited disease (LLD) denotes a specific subgroup of metastatic colorectal cancer (mCRC) patients. Patients and Methods: A total of 479 patients with unresectable mCRC from an irinotecan-based randomised phase III trial were evaluated. Patients with LLD and non-LLD and hepatic resection were differentiated. Based on baseline patient characteristic, prognostic factors for hepatic resection were evaluated. Furthermore, prognostic factors for median overall survival (OS) were estimated via Cox regression in LLD patients. Results: Secondary liver resection was performed in 38 out of 479 patients (resection rate: 7.9%). Prognostic factors for hepatic resection were LLD, lactate dehydrogenase (LDH), node-negative primary, alkaline phosphatase (AP) and Karnofsky performance status (PS). Median OS was significantly increased after hepatic resection (48 months), whereas OS in LLD (17 months) and non-LLD (19 months) was comparable in non-resected patients. With the inapplicability of Koehne's risk classification in LLD patients, a new score based on only the independent prognostic factors LDH and white blood cell (WBC) provided markedly improved information on the outcome. Conclusion: Patients undergoing hepatic resection showed favourable long-term survival, whereas non-resected LLD patients and non-LLD patients did not differ with regard to progression-free survival and OS. The LDH levels and WBC count were confirmed as prognostic factors and provide a useful and simple score for OS-related risk stratification also in LLD.
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Schulz C, von Rüsten-Lange M, Krüger A, Lendlein A, Jung F. Viability and function of primary human endothelial cells on smooth poly(ether imide) films. Clin Hemorheol Microcirc 2013; 52:267-82. [PMID: 22975947 DOI: 10.3233/ch-2012-1604] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Poly(ether imide) (PEI) is being explored as potential biomaterial for cardiovascular applications. Different studies showed that human umbilical venous endothelial cells (HUVEC) are able to adhere and proliferate on PEI membranes (R(q) = 13.20 ± 1.58 nm). A recently published study revealed evidence for much lower platelet adhesion on very smooth PEI-films (R(q) = 2.37 ± 1.40 nm). Therefore, we explored whether primary human venous endothelial cells (HUVEC) are able to adhere and proliferate on such very smooth PEI-films compared to tissue-cultured polystyrene (TCP) as reference material. Cytotoxicity testing revealed that PEI had a slight cytotoxic effect on HUVEC accompanied by a marginal reduced integrity of the plasma membrane and a significant lower mitochondrial activity. However long-term seeding experiments up to eleven days exhibited that HUVEC were able to proliferate on the PEI-films till confluence (TCP 96,190 ± 18,289 cells/cm(2); PEI 91,590 ± 19,583 cells/cm(2)). Further studies are planned to monitor the influence of shear force on the endothelial cell monolayer in a dynamic test system to determine its stability in view of shear resistant endothelialization of PEI for cardiovascular devices.
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Jung F, Schulz C, Blaschke F, Muller DN, Mrowietz C, Franke RP, Lendlein A, Schunck WH. Effect of cytochrome P450-dependent epoxyeicosanoids on Ristocetin-induced thrombocyte aggregation. Clin Hemorheol Microcirc 2013; 52:403-16. [PMID: 22975950 DOI: 10.3233/ch-2012-1614] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Epoxyeicosatrienoic acids (EETs) produced by cytochrome P450 (CYP)-dependent epoxidation of arachidonic acid (AA) inhibit thrombocyte adhesion to the vascular wall. Upon dietary omega-3 fatty acid supplementation, EETs are partially replaced by eicosapentaenoic acid (EPA)-derived epoxyeicosatetraenoic acids (EEQs) and docosahexaenoic acid (DHA)-derived epoxydocosapentaenoic acids (EDPs). We hypothesized that the omega-3 epoxy-metabolites may exhibit superior anti-thrombogenic properties compared to their AA-derived counterparts. To test this hypothesis, we analyzed the effects of 11,12-EET, 17,18-EEQ and 19,20-EDP on Ristocetin-induced thrombocyte aggregation (RITA), a process that mimics thrombocyte adhesion to the vascular wall. The eicosanoids were added for 5, 30, or 60 minutes to thrombocyte-rich plasma freshly prepared immediately after blood collection from stringently selected apparently healthy subjects. Thrombocyte aggregation was then induced by Ristocetin (0.75 mg/mL) and assessed by turbidimetric measurements. After 60 minutes of preincubation, all three epoxy-metabolites significantly decreased the rate of RITA. 17,18-EEQ and 19,20-EDP were effective already at 1 μM, whereas 5-fold higher concentrations were required with 11,12-EET. Addition of AUDA, an inhibitor of the soluble epoxide hydrolase, potentiated the effect of 17,18-EEQ resulting in a significant further decrease of the velocity as well as amplitude of the aggregation process. In contrast to their profound effects on RITA, none of the epoxy-metabolites was effective in reducing collagen- or ADP-induced thrombocyte aggregation. These results indicate a highly specific role of CYP-eicosanoids in preventing thromboembolic events and suggest that the formation of 17,18-EEQ and 19,20-EDP may contribute to the anti-thrombotic effects of omega-3 fatty acids.
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Tusche K, Nagel F, Arning S, Wuertz S, Susenbeth A, Schulz C. Effect of different dietary levels of potato protein concentrate supplemented with feed attractants on growth performance of rainbow trout (Oncorhynchus mykiss). Anim Feed Sci Technol 2013. [DOI: 10.1016/j.anifeedsci.2013.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Wlokas I, Faccinetto A, Tribalet B, Schulz C, Kempf A. Mechanism of Iron Oxide Formation from Iron Pentacarbonyl-Doped Low-Pressure Hydrogen/Oxygen Flames. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20786] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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109
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Schulz C, Engelmann B, Massberg S. Crossroads of coagulation and innate immunity: the case of deep vein thrombosis. J Thromb Haemost 2013; 11 Suppl 1:233-41. [PMID: 23809127 DOI: 10.1111/jth.12261] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Deep vein thrombosis (DVT) is a common condition characterized by the formation of an occlusive blood clot in the venous vascular system, potentially complicated by detachment and embolization of thrombi into the lung. Recent evidence from mouse models has shed light on the sequence of events and on the cellular (innate immune cells, platelets) and molecular (hematopoietic tissue factor, nucleic acids) components involved. In response to decreased blood flow, circulating neutrophils and monocytes adhere to the activated endothelium within hours. They initiate and propagate DVT by interacting with platelets and by the exposure and activation of circulating tissue factor and FXII. Intravascular blood coagulation is also induced by extracellular nucleosomes released mainly from activated neutrophils. Interestingly, these mechanisms are closely linked to an evolutionary conserved immune defense mechanism activated in response to infections. In this review, we will give an overview of DVT and the role of innate immune pathways supporting this process. While the latter are aimed at preserving tissue integrity and function, uncontrolled blood coagulation and activation of immune cells may result in pathological thrombus formation and vascular occlusion. Understanding the molecular and cellular players triggering occlusion of large veins, and their distinction from physiological hemostasis, is important for the development of strategies to prevent and treat DVT.
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Berthelot-ricou A, Perrin J, Roustan A, Di Giorgio C, De Meo M, Botta A, Orsiere T, Courbiere B, Martinez JG, Botella IM, Casas IP, Novella-Maestre E, Colom PJF, Rubio J, Martinez AP, Rodriguez-Wallberg KA, de Mena SA, Malm E, Larsson A, Kuiper R, Hassan M, Herraiz S, Novella-Maestre E, Rodriguez-Iglesias B, Diaz-Garcia C, Mirabet V, Pellicer A, Aljaser FS, Medrano JH, Rhodes S, Tomlinson MJ, Campbell BK, Dong F, Shi S, Dai S, Liu X, Su Y, Guo Y, Wang F, Xin Z, Song W, Jin H, Jin H, Sun Y, Ortega-Hrepich C, Stoop D, Guzman L, Van Landuyt L, Tournaye H, Smitz J, De Vos M, Rodriguez-Iglesias B, Herraiz S, Novella-Maestre E, Diaz C, Vera F, Pellicer A, Novella-Maestre E, Herraiz S, Rodriguez-Iglesias B, Diaz-Garcia C, Pellicer A, Youm H, Lee J, Lee JR, Lee JY, Jee BC, Suh CS, Kim SH, Lotz L, Hoffmann I, Muller A, Hackl J, Schulz C, Reissmann C, Cupisti S, Oppelt PG, Heusinger K, Hildebrandt T, Beckmann MW, Dittrich R, Klinger F, Rossi V, Lispi M, Longobardi S, De Felici M, Fabbri R, Vicenti R, Martino NA, Parazza I, Macciocca M, Magnani V, Pasquinelli G, Dell'Aquila ME, Venturoli S, Fisch B, Orvieto R, Fisher N, Ben-Haroush A, Stein A, Abir R, Al-Samerria S, McFarlane J, Almahbobi G, Klocke S, Tappehorn C, Griesinger G. Male and female fertility preservation. Hum Reprod 2013. [DOI: 10.1093/humrep/det215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Modest DP, Laubender RP, Stintzing S, Giessen C, Schulz C, Haas M, Mansmann U, Heinemann V. Early tumor shrinkage in patients with metastatic colorectal cancer receiving first-line treatment with cetuximab combined with either CAPIRI or CAPOX: an analysis of the German AIO KRK 0104 trial. Acta Oncol 2013; 52:956-62. [PMID: 23244709 DOI: 10.3109/0284186x.2012.752580] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE This study investigated the impact of early tumor shrinkage (ETS) on progression-free- (PFS) and overall survival (OS) in patients with metastatic colorectal cancer (mCRC) treated within the AIO KRK 0104 trial as first-line therapy. Moreover, correlations of ETS with clinical characteristics and prognostic markers were evaluated. PATIENTS AND METHODS In total, 121 patients were included into this analysis. Patients were treated with cetuximab combined with either CAPIRI or CAPOX. ETS at six weeks was defined as a relative change of ≥ 20% in the sum of the longest diameters of target lesions compared to baseline. Survival times were compared between patients with ETS ≥ 20% versus no-ETS. RESULTS ETS ≥ 20% was observed in 59% of all patients with KRAS wild-type tumors. In these patients ETS ≥ 20% was associated with higher overall response rate (82% vs. 19%, p < 0.001). Also, PFS (8.9 vs. 4.7 months, p < 0.001) and OS (31.6 vs. 15.8 months, p = 0.005) were significantly superior in ETS ≥ 20% of patients compared to no-ETS. In patients with KRAS mutant mCRC ETS ≥ 20% neither had an effect on PFS nor OS. Cetuximab-induced skin toxicity correlated with the occurrence of ETS ≥ 20% (p = 0.002). CONCLUSION In patients with KRAS wild-type tumors treated with cetuximab plus capecitabine-based chemotherapy ETS ≥ 20% is an important predictor of favorable outcome.
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Jähne A, Balmford J, Schulz C, Leifert J. Bekommen rauchende Patienten in der Klinik Angebote zur Entwöhnung? Dtsch Med Wochenschr 2013; 138:1153-8. [DOI: 10.1055/s-0033-1343205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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113
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Wuertz S, Schulze SGE, Eberhardt U, Schulz C, Schroeder JP. Acute and chronic nitrite toxicity in juvenile pike-perch (Sander lucioperca) and its compensation by chloride. Comp Biochem Physiol C Toxicol Pharmacol 2013; 157:352-60. [PMID: 23318298 DOI: 10.1016/j.cbpc.2013.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 01/02/2013] [Accepted: 01/08/2013] [Indexed: 10/27/2022]
Abstract
Pike-perch Sander lucioperca is currently considered as one of the most promising candidates for production in freshwater recirculation aquaculture systems (RAS). Here, due to the lack of studies on nitrite (NO(2)(-)) toxicity in pike-perch, a flow-through exposure at 0, 0.44, 0.88, 1.75, 3.5, 7, 14 and 28 mg/L NO(2)(-)-N was carried out to determine the acute and chronic toxicity over a period of 32 days. In juvenile pike-perch, 120 h LC(50) was 6.1mg/L NO(2)(-)-N and at ≥14 mg/L NO(2)(-)-N all fish had died within 24 h. Chronic exposure revealed a significant build up of NO(2)(-) in the plasma as well as in the muscles at ≥0.44 mg/L NO(2)(-)-N peaking in fish exposed to the highest concentration of 3.5 mg/L NO(2)(-)-N after 32 days. Still, due to high individual variation methemoglobin (MetHb) was only significantly increased (p<0.01) at 3.5 mg/L NO(2)(-)-N. No adverse effects on red blood cells (RBC) and hematocrit were observed in any of the treatments. In a second experiment, compensation of NO(2)(-) toxicity at increasing chloride concentrations (40 (freshwater), 65, 90, 140, 240, 440 mg/L Cl(-)) was observed at a constant exposure of 10 mg/L NO(2)(-)-N for 42 days. At ≥240 mg/L Cl(-), NO(2)(-) build-up in blood plasma and muscle was completely inhibited. At lower Cl(-) concentrations (≤140 mg/L), NO(2)(-) was significantly increased in plasma, but only insignificantly elevated in muscle due to high individual variation. MetHb was increased significantly difference only at 40 mg/L Cl(-) (freshwater control) compared to the control. Again, high individual variations were observed. As a conclusion, S. lucioperca is moderately sensitive towards NO(2)(-) and acceptable levels in RAS should hence not exceed 1.75 mg/L NO(2)(-)-N to avoid MetHb formation. However, based on the 120 h LC(50) and a factor of 0.01 according to Sprague (1971), a NO(2)(-) concentration of ≤0.061 mg/L NO(2)(-)-N is considered as "safe." Thereby, no NO(2)(-) should accumulate in the plasma or muscle tissue during chronic exposure. For 10 mg/L NO(2)(-)-N, ≥240 mg/L chloride compensates for NO(2)(-) uptake in plasma and muscle.
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Haas M, Heinemann V, Kullmann F, Laubender RP, Klose C, Bruns CJ, Holdenrieder S, Modest DP, Schulz C, Boeck S. Prognostic value of CA 19-9, CEA, CRP, LDH and bilirubin levels in locally advanced and metastatic pancreatic cancer: results from a multicenter, pooled analysis of patients receiving palliative chemotherapy. J Cancer Res Clin Oncol 2013; 139:681-9. [PMID: 23315099 DOI: 10.1007/s00432-012-1371-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Accepted: 12/29/2012] [Indexed: 12/21/2022]
Abstract
PURPOSE CA 19-9 is the only established tumor marker in pancreatic cancer (PC); the prognostic role of other serum markers like CEA, CRP, LDH or bilirubin has not yet been defined. METHODS We pooled pre-treatment data on CA 19-9, CEA, CRP, LDH and bilirubin levels from two German multicenter randomized phase II trials together with prospective patient data from one high-volume German Cancer Center. Marker levels were assessed locally before the start of palliative first-line therapy for advanced PC and serially during treatment (for CA 19-9 only). Clinical and biomarker data (overall 12 variables) were correlated with the efficacy endpoints time-to-progression (TTP) and overall survival (OS) by using uni- and multivariate Cox models. RESULTS Data from 291 patients were included in this pooled analysis; 253 patients (87 %) received treatment within prospective clinical trials. Median TTP in the study cohort was 5.1 months and median OS 9.0 months. In univariate analysis, pre-treatment CA 19-9 (HR 1.55), LDH (HR 2.04) and CEA (HR 1.89) levels were significantly associated with TTP. Regarding OS, baseline CA 19-9 (HR 1.46), LDH (HR 2.07), CRP (HR 1.69) and bilirubin (HR 1.62) were significant prognostic factors. Within multivariate analyses, pre-treatment log [CA 19-9] (as continuous variable for TTP) and log [bilirubin] as well as log [CRP] (for OS) had an independent prognostic value. A CA 19-9 decline of ≥25 % during the first two chemotherapy cycles was predictive for TTP and OS, independent of the applied CA 19-9 assay. CONCLUSION Baseline CA 19-9 and CA 19-9 kinetics during first-line chemotherapy are prognostic in advanced PC. Besides that finding other serum markers like CRP, LDH and bilirubin can also provide prognostic information on TTP and OS.
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Aghsaee M, Drakon A, Eremin A, Dürrstein SH, Böhm H, Somnitz H, Fikri M, Schulz C. Experimental investigation and modeling of the kinetics of CCl4 pyrolysis behind reflected shock waves using high-repetition-rate time-of-flight mass spectrometry. Phys Chem Chem Phys 2013; 15:2821-8. [PMID: 23338791 DOI: 10.1039/c2cp42574b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The pyrolysis kinetics of CCl(4) behind reflected shock waves was studied with high-repetition-rate time-of-flight mass spectrometry. For modeling, quantum mechanical calculations were performed to evaluate the dissociation energies of CCl bonds for the different CCl(x) (x = 1 to 4) radicals. Good agreement with the JANAF thermochemical table was found. With the reaction mechanism developed for CCl(4) decomposition satisfactory agreement with experimental results was obtained. The investigations show the importance of C(2)Cl(2) formation for understanding the processes of carbon cluster growth leading to carbonaceous particle formation.
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Herkt C, Marsico A, Chen W, Bertrams W, Schulz C, Vingron M, Schmeck B, Sittka A. Differenzially expressed miRNAs after Legionella pneumophila infection of human macrophages. Pneumologie 2013. [DOI: 10.1055/s-0033-1334623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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117
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Bertrams W, Marsico A, Schulz C, Du Bois I, Sittka A, Vingron M, Suttorp N, Hippenstiel S, Schmeck B. Alternative and Classic Activation of Primary Human Macrophages - A Systems Biology Approach. Pneumologie 2013. [DOI: 10.1055/s-0033-1334756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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118
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Lai X, Schulz C, Seifert F, Dolniak B, Wolkenhauer O, Vera J, Schmeck B, Sittka A. The role of microRNA regulation in the early inflammatory response: miR-146a and NF-κB signaling in lung inflammation. Pneumologie 2013. [DOI: 10.1055/s-0033-1334618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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119
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Du Bois I, Marsico A, Becher A, Bertrams W, Sittka A, Schulz C, Vingron M, Suttorp N, Hippenstiel S, Schmeck B. Role of TNFAIP2 in Legionella pneumophila-induced pulmonary inflammation. Pneumologie 2013. [DOI: 10.1055/s-0033-1334622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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120
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Zeiss K, Parhofer KG, Heinemann V, Haas M, Laubender RP, Holdenrieder S, Schulz C, Boeck S. Glucose and lipid metabolism in patients with advanced pancreatic cancer receiving palliative chemotherapy. Anticancer Res 2013; 33:287-292. [PMID: 23267159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND The role of diabetes mellitus (DM) in the pathogenesis of pancreatic cancer (PC) and its prognostic role on patients with advanced disease remain undefined. PATIENTS AND METHODS Within a prospective single-center pilot study, 30 consecutive patients with advanced PC underwent metabolic profiling for glucose (fasting glucose level, oral glucose tolerance test (oGTT), serum insulin levels) and lipid metabolism (cholesterol, triglycerides, lipoprotein a) at the initiation of and two months after chemotherapy. Subgroups (DM vs. non-DM) were analyzed with regard to metabolic and outcome parameters. RESULTS Sixteen patients (53%) had DM, in seven of whom DM was newly-diagnosed by an oGTT. Patients in the DM subgroup had a higher prevalence of hypertension (p=0.05) and a higher BMI (p=0.01), but with no significant differences in pre-treatment cholesterol (p=0.55) and triglyceride levels (p=0.37). Regarding baseline oncological parameters, patients with DM more often had a reduced performance status (p=0.06), and were more likely to present with metastatic disease (p=0.09). The median overall survival was 3.9 months in the DM group and 8.3 months in the non-DM group (hazard ratio=0.67, 95% confidence interval=0.31-1.45, p=0.31), respectively. CONCLUSION The incidence of DM is high in patients with PC and the lipid profile associated with DM may be different from that of patients with metabolic syndromes. The role of DM as a negative prognostic factor in advanced PC remains to be determined.
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Rehberg-Haas S, Meyer S, Lippemeier S, Schulz C. Pavlova - a "new" microalgae candidate species for live feed cultivation and fish larvae nutrition. COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES 2013; 78:388-391. [PMID: 25141720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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122
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Schulz C, von Rüsten-Lange M, Krüger A, Lendlein A, Jung F. Viability and function of primary human endothelial cells on smooth poly (ether imide) films. Clin Hemorheol Microcirc 2013. [DOI: 10.3233/ch-131775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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123
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Schmidt B, Schulz C, Moebus S, Seiwert M, Kolossa-Gehring M, Jöckel KH. [Concept for a German national birth cohort for environmental health research]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2012; 55:852-7. [PMID: 22736167 DOI: 10.1007/s00103-012-1484-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The German Federal Environment Agency has commissioned the conceptual work for a birth cohort study to investigate environmental health problems in children. The recruitment is intended to start as early as possible in pregnancy and to take place in several regions of Germany. To detect health risks for exposures and outcomes with low prevalence as well as gene-environment interactions, a cohort size of 100,000-200,000 parent-child pairs is needed. The concept focuses on five health issues: neurodevelopment; reproductive development; pregnancy and birth outcomes; asthma, allergies and respiratory disease; obesity, insulin resistance and diabetes. The examination of additional health conditions will be possible. The exposure assessment will cover chemical, biological and physical exposures; psychosocial factors and genetics will be assessed as well. Biological and environmental samples will be stored in a repository for future analyses. The birth cohort study will contribute to the detection of associations between environmental exposures and health conditions over the course of life, which in turn will have an impact on environmental and health policies.
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Wagner G, Koch K, Schatzabel C, Schulz C, Schlösser R. Self-referential processing influences functional activation during cognitive control. Int J Psychophysiol 2012. [DOI: 10.1016/j.ijpsycho.2012.06.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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125
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Schulz C, Kaufmann JM, Walther L, Schweinberger SR. Effects of spatial caricaturing and anti-caricaturing on face learning. J Vis 2012. [DOI: 10.1167/12.9.976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Kaufmann JM, Itz ML, Schulz C, Schweinberger SR. Neural correlates of learning and recognizing faces caricatured in shape or texture. J Vis 2012. [DOI: 10.1167/12.9.1280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fink H, Schulz C, Bangerter A, Frizelle S, Baines-Simon A, Noorbaloochi S, Bronfort G. P04.88. Education plus exercise vs. education, exercise and chiropractic care for veterans with chronic low back pain: a pilot randomized trial. Altern Ther Health Med 2012. [PMCID: PMC3373954 DOI: 10.1186/1472-6882-12-s1-p358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Maiers M, Bronfort G, Evans R, Hartvigsen J, Svendsen K, Bracha Y, Schulz C, Schulz K, Grimm R. OA06.03. Spinal manipulative therapy, supervised rehabilitative exercise and home exercise for seniors with neck pain. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012. [PMCID: PMC3373326 DOI: 10.1186/1472-6882-12-s1-o23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sjödahl R, Schulz C, Myrelid P, Andersson P. Long-term quality of life in patients with permanent sigmoid colostomy. Colorectal Dis 2012; 14:e335-8. [PMID: 22251418 DOI: 10.1111/j.1463-1318.2012.02941.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
AIM The study aimed to assess quality of life (QoL) in patients with a sigmoid colostomy using a simple general and disease-specific instrument. A subgroup not doing well was identified and examined further. METHOD The Short Health Scale (SHS) is a four-item instrument exploring severity of symptoms, function in daily life, worry, and general well-being, using visual analogue scales ranging from 0 to 100 where 100 is the worst possible situation. The SHS was delivered to 206 patients with a sigmoid colostomy. It was returned by 181 (87.9%) patients [88 men; median age 73 (33-91) years]. Follow-up was 61 (10-484) months for 178 (86.4%) patients returning usable questionnaires. A subgroup of 16 patients scoring more than 50 in all four items of the SHS was further examined with StomaQOL where 100 is best possible. RESULTS The median score for severity of symptoms was 18 (2-95), function in daily life 21 (0-95), worry 17 (3-98) and general well-being 22 (0-99). A score of < 50 in the SHS was recorded in 84.9%, 82.1%, 79.9% and 70.5% respectively. In the group scoring more than 50 in all four items patients diagnosed with irritable bowel syndrome constituted 43.8% to compare with 5.6% in the entire study group (P < 0.001). Median score for StomaQOL was 37 (22-62) in this group. CONCLUSION Most patients with a permanent sigmoid colostomy have a good QoL consistent with previous findings. However, this is reduced in a subgroup of patients diagnosed with irritable bowel syndrome.
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Artner J, Leucht F, Schulz C, Cakir B. Sciatica and incomplete paraplegia after spontaneous haematoma of the spinal cord due to a cumarine - induced coagulopathy: case report. Open Orthop J 2012; 6:189-93. [PMID: 22629291 PMCID: PMC3358721 DOI: 10.2174/1874325001206010189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 04/12/2012] [Accepted: 04/13/2012] [Indexed: 12/01/2022] Open
Abstract
Spontaneous spinal haematoma is a rare cause of sciatica. We present a case of a 73 year old patient, who was admitted to our department and suffered from spontaneous sciatica over 24 hours. During the examination, the patient presented undulating symptoms of paraplegia, varying from incomplete loss of power in the left lower limb to complete plegia. The patient presented multiple diseases like biological aortic valve replacement, diabetes, hypertonia in her medical history, etc. Due to an additional absolute arrhythmia she ingested a cumarine medication. The tomographic imaging revealed a spontaneous lumbar and cranial subarachnoidal haematoma.
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Schulz C, Kullmann F, Kunzmann V, Schepp W, Geissler M, Vehling-Kaiser U, Stauder H, Wein A, Al-Batran SE, Kubin T, Schaefer C, Held S, Stintzing S, Boeck SH, Haas M, Forstpointner R, Ridwelski K, Heinemann V. NeoFLOT: Multicenter phase II study of perioperative chemotherapy in resectable adenocarcinoma of the gastroesophageal junction or gastric adenocarcinoma. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.4072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4072 Background: The rationale of the NeoFLOT-trial was the intensification of neoadjuvant chemotherapy (NACT) by prolongation of preoperative treatment. This strategy is based on the notion that while perioperative treatment is notably beneficial in locally advanced gastroesophageal cancer (GEC), postoperative chemotherapy can only be applied in a fraction of patients (pts). Methods: Pts with T3, T4 and/or N+ adenocarcinoma (GEC) were eligible for this multicenter phase II trial. NACT consisted of 6 cycles of oxaliplatin 85 mg/m2, leucovorin 200 mg/m2, fluorouracil 2600 mg/m2 and docetaxel 50 mg/m2 (FLOT) applied q 2 wks. Staging was performed after 3 cycles to select pts with progressive disease (PD) for immediate surgery. Primary endpoint was the R0-resection rate. Secondary endpoints included the pathological complete response rate (pCR), histologic tumor regression grade (Becker 2003), safety, and progression-free survival (PFS). Results: From 10/2009 to 06/2011, 59 pts were enrolled of whom 58 pts were assessable for safety. Median age was 61 years (range: 32-79), 58.6% (34/58) had tumors of the gastroesophageal junction. 50 pts underwent surgery and were assessable for the primary endpoint. R0-resection rate was 86.0% (43/50). pCR was achieved in 20.0% (10/50) of pts. During NACT, 6.9% (4/58) of pts developed progressive disease. Dose reduction was performed in 43.1% (25/58) of pts resulting in a median dose intensity of 89.2%. Grade 3/4 neutropenia was observed in 29.3% (17/58) of pts, febrile neutropenia grade 3/4 in 1.7% (1/58). Common grade 3/4 non-hematologic adverse events were diarrhea (13.8% (8/58)) and mucositis (6.9% (4/58)). Treatment related mortality was 3.4% (2/58) with 2 cases of sepsis. After a median follow-up of 9.1 months, median PFS and OS have not been reached. Conclusions: These data indicate that NACT with 6 cycles FLOT is well-tolerated and highly effective in resectable GEC.
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Lange TJ, Kunzendorf F, Pfeifer M, Arzt M, Schulz C. Endobronchial ultrasound-guided transbronchial needle aspiration in routine care - plenty of benign results and follow-up tests. Int J Clin Pract 2012; 66:438-45. [PMID: 22512605 DOI: 10.1111/j.1742-1241.2012.02907.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a widespread technique for tissue sampling from hilar and mediastinal lymph nodes (LN). The diagnostic yield of this method is reported to be very high even outside clinical trials. We aimed to assess the diagnostic accuracy of EBUS-TBNA after its implementation at a University hospital. METHODS We analysed the first 100 consecutive patients who underwent an EBUS-TBNA procedure at our institution with respect to indication and cytological results. Sensitivity and negative predictive value (NPV) were calculated on the basis of histological confirmation or follow-up. RESULTS From 03/2007 to 03/2008, EBUS-TBNA of 218 LNs was performed on the basis of chest computed tomography. The primary indication for EBUS-TBNA was lymphadenopathy of unknown cause with (44%) or without (37%) pulmonary nodule(s). Only 19% of patients had known cancer and underwent the procedure for (re-)staging. In 73% of patients a non-diagnostic cytology was reported. A diagnosis could be established in only 27% by EBUS-TBNA including four patients with sarcoidosis. Sensitivity and NPV were low with 61.4% and 76.7%, respectively. Diagnostic yield increased over time and was better in cancer patients than in patients with incidental lymphadenopathy. CONCLUSION Although EBUS-TBNA is reported to have a very high diagnostic yield in selected patients, the predominant finding in routine care, depending on the patient population, can be a non-diagnostic cytology result with the need for surgical procedures or follow-up studies. This should be considered in the approach to patients with mediastinal or hilar lymphadenopathy.
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Schulz C, Waldeck S. Primäre amelanotische meningeale Melanomatose. FORTSCHRITTE DER NEUROLOGIE-PSYCHIATRIE 2012; 80:402-6. [DOI: 10.1055/s-0031-1299357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Schulz C, Mauer UM. [Postoperative course after acute traumatic subdural hematoma in the elderly. Does the extent of craniotomy influence outcome?]. Z Gerontol Geriatr 2012; 44:177-80. [PMID: 21505941 DOI: 10.1007/s00391-011-0168-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM The goal of the study was to analyze the short-term outcome after surgical treatment of acute subdural hematomas in two treatment groups in a patient population >65 years. Whether there are disadvantages from invasive treatment or whether advantages can be achieved with the less invasive treatment has not been previously examined in a prospective study. METHODS A prospective, nonrandomized study of 50 patients >65 years with acute traumatic subdural hematoma was performed, comparing the short-term outcome after two different primary surgical procedures: limited craniotomy (group A, n=25) and large decompressive craniectomy (group B, n=25). RESULTS There were no differences of hematoma volume, degree of midline structure shift, and time from trauma to operation between the two groups. Initial Glasgow coma scale and short-term outcome after 4 weeks measured by the Glasgow outcome score in both groups showed no significant differences. CONCLUSION No significant differences between short-term outcome after limited craniotomy versus large decompressive craniectomy were found for patients >65 years, and the results indicate that decompressive craniectomy can be accepted as a surgical treatment option for acute traumatic subdural hematoma even in elderly patients.
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Braun D, Schulz C, Sibbing D, Massberg S. [Periinterventional antiplatelet therapy: from bench to bedside]. Herz 2012; 37:128-35. [PMID: 22398816 DOI: 10.1007/s00059-012-3593-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The recruitment and activation of blood platelets initiate ischemic events in patients with coronary artery diseases (myocardial infarction). Moreover, platelet activation and aggregation are key events triggering early and late thrombotic complications (stent thromboses) in patients successfully treated with coronary stent implantation. Hence, the inhibition of the thromboxane A2 synthesis by aspirin and the ADP-receptor pathway by clopidogrel have drastically reduced the risk of ischemic complications following coronary stenting. However, clopidogrel has several inherent limitations, including the high incidence of non- or low-responders and the increased risk of bleeding due to the prolonged persistence of its anti-platelet effect. The latter is of particular concern in patients who require non-deferrable surgery. In recent years, novel anti-platelet substances have been clinically evaluated and are now approved for use in patients. These substances offer several potential advantages over the previous strategies and could pave the way for more individualized anti-platelet regimens. In this review, we give an overview on the available clinical data evaluating the benefits of these novel anti-platelet substances.
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Schwab A, Nechyporuk-Zloy V, Gassner B, Schulz C, Kessler W, Mally S, Römer M, Stock C. Dynamic redistribution of calcium sensitive potassium channels (hK(Ca)3.1) in migrating cells. J Cell Physiol 2012; 227:686-96. [PMID: 21465474 DOI: 10.1002/jcp.22776] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Calcium-sensitive potassium channels (K(Ca)3.1) are expressed in virtually all migrating cells. Their activity is required for optimal cell migration so that their blockade leads to slowing down. K(Ca)3.1 channels must be inserted into the plasma membrane in order to elicit their physiological function. However, the plasma membrane of migrating cells is subject to rapid recycling by means of endo- and exocytosis. Here, we focussed on the endocytic internalization and the intracellular transport of the human isoform hK(Ca)3.1. A hK(Ca)3.1 channel construct with an HA-tag in the extracellularly located S3-S4 linker was transfected into migrating transformed renal epithelial MDCK-F cells. Channel internalization was visualized and quantified with immunofluorescence and a cell-based ELISA. Movement of hK(Ca)3.1 channel containing vesicles as well as migration of MDCK-F cells were monitored by means of time lapse video microscopy. hK(Ca)3.1 channels are endocytosed during migration. Most of the hK(Ca)3.1 channel containing vesicles are moving at a speed of up to 2 µm/sec in a microtubule-dependent manner towards the front of MDCK-F cells. Our experiments indicate that endocytosis of hK(Ca)3.1 channels is clathrin-dependent since they colocalize with clathrin adaptor proteins and since it is impaired when a C-terminal dileucine motif is mutated. The C-terminal dileucine motif is also important for the subcellular localization of hK(Ca)3.1 channels in migrating cells. Mutated channels are no longer concentrated at the leading edge. We therefore propose that recycling of hK(Ca)3.1 channels contributes to their characteristic subcellular distribution in migrating cells.
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Aghsaee M, Böhm H, Dürrstein SH, Fikri M, Schulz C. Experimental and modeling study of carbon suboxide decomposition behind reflected shock waves. Phys Chem Chem Phys 2012; 14:1246-52. [DOI: 10.1039/c1cp22044f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Hecht C, Abdali A, Dreier T, Schulz C. Gas-Temperature Imaging in a Microwave-Plasma Nanoparticle-Synthesis Reactor Using Multi-Line NO-LIF Thermometry. ACTA ACUST UNITED AC 2011. [DOI: 10.1524/zpch.2011.0162] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Multi-line NO-LIF thermometry is used to determine the two-dimensional temperature distribution inside a low-pressure plasma reactor. The applicability of multi-line temperature measurements to non-equilibrium plasma environments was evaluated. Temperatures between 300 and 3000 K have been observed, while microwave power, and pressure show a strong effect on the temperature distribution. Metal-organic precursors added for particle synthesis additionally influence the temperature through the heat release during particle formation and the oxidation of organic ligands.
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Abstract
The discovery of Helicobacter pylori opened a new field for extensive research on the interactions of this bacterium with the gastric mucosa in the past decades. Basic principles of infection, virulence factors, and treatment options have been identified and recognized. New questions have emerged concerning possible interactions of H. pylori with other bacteria in the human stomach. Herein we discuss hallmark findings in relation to H. pylori infection and the new evidence on other bacteria in the human stomach. Probiotic bacteria seem to interfere with colonizing H. pylori bacteria and thus influence the inflammatory response of the gastric mucosa to H. pylori infection.
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Schulz C, Sittka A, Pollok I, Dolniak B, Bertrams W, Flieger A, Lai X, Vera J, Marsico A, Vingron M, Suttorp N, Hippenstiel S, Schmeck B. Analyse von microRNA-Regelkreisen in der Legionella pneumophila-Infektion. Pneumologie 2011. [DOI: 10.1055/s-0031-1296144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Modest D, Jung A, Moosmann N, Laubender R, Giessen C, Schulz C, Haas M, Neumann J, Boeck S, Kirchner T, Heinemann V, Stintzing S. The influence of KRAS and BRAF mutations on the efficacy of cetuximab-based first-line therapy of metastatic colorectal cancer: An analysis of the AIO KRK-0104-trial. Int J Cancer 2011; 131:980-6. [DOI: 10.1002/ijc.26467] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 09/14/2011] [Indexed: 11/09/2022]
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Brunnberg U, Mohr M, Noppeney R, Dürk HA, Sauerland MC, Müller-Tidow C, Krug U, Koschmieder S, Kessler T, Mesters RM, Schulz C, Kosch M, Büchner T, Ehninger G, Dührsen U, Serve H, Berdel WE. Induction therapy of AML with ara-C plus daunorubicin versus ara-C plus gemtuzumab ozogamicin: a randomized phase II trial in elderly patients. Ann Oncol 2011; 23:990-6. [PMID: 21810729 DOI: 10.1093/annonc/mdr346] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Chemotherapy for elderly patients with acute myeloid leukemia (AML) results in a median overall survival (OS) of ≤ 1 year. Elderly patients often present with cardiac comorbidity. Gemtuzumab ozogamicin (GO) is active in elderly (≥ 60 years) patients with relapsed AML with low cardiac toxicity. PATIENTS AND METHODS This randomized phase II study compared a standard combination of ara-C and daunorubicin (DNR; 7+3) versus ara-C plus gemtuzumab ozogamicin (7+GO) as the first course of induction therapy. Primary objectives were comparison of blast clearance on day 16, event-free survival (EFS), and remission duration. OS, complete remission (CR), and tolerability were secondary objectives. RESULTS One hundred and nineteen patients with de novo AML, treatment-related AML, AML with a history of myelodysplastic syndrome (MDS), or high-risk MDS entered the study. Median age of 115 patients (intent-to-treat population) was 69 years. Protocol outlined a second course 7+3 for patients without blast clearance and two courses of high-dose ara-C consolidation upon CR. Both treatments were equally effective in blast clearance, CR, EFS, remission duration, or OS (median: 7+3, 9 months; 7+GO, 10 months). Induction death rate was higher in the GO group due to veno-occlusive disease. CONCLUSION The study did not show significant superiority of 7+GO over standard 7+3.
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Schmidt B, Moebus S, Lösch C, Pieper C, Hoffmann B, Andrich S, Schulz C, Seiwert M, Kolossa-Gehring M, Jöckel KH. Konzept für eine umweltepidemiologische Geburtskohorte als Beitrag zur gesundheitsbezogenen Umweltbeobachtung des Bundes (GUB). DAS GESUNDHEITSWESEN 2011. [DOI: 10.1055/s-0031-1283609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Dienstl M, Kempf K, Schulz C, Kruse J, Martin S. Einfluss von telemedizinischer Betreuung auf Stoffwechseleinstellung und Lebensqualität bei Patienten mit Typ-2-Diabetes mellitus. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1271460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Eschbaumer M, Schulz C, Wäckerlin R, Gauly M, Beer M, Hoffmann B. Limitations of sandwich ELISAs for bluetongue virus antibody detection. Vet Rec 2011; 168:643. [PMID: 21672950 DOI: 10.1136/vr.d1184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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146
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Hermelink B, Wuertz S, Trubiroha A, Rennert B, Kloas W, Schulz C. Influence of temperature on puberty and maturation of pikeperch, Sander lucioperca. Gen Comp Endocrinol 2011; 172:282-92. [PMID: 21439285 DOI: 10.1016/j.ygcen.2011.03.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 03/14/2011] [Accepted: 03/17/2011] [Indexed: 12/31/2022]
Abstract
Among external factors, temperature is known to exhibit a prominent role in reproduction of temperate fish species. Here, temperature related induction of puberty in pikeperch Sander lucioperca was investigated. For the first time the key factors of the pikeperch brain-pituitary-gonad axis, targeting the mRNA expression of the luteinising hormone (LH) and the follicle stimulating hormone (FSH), as well as the plasma sex steroids estradiol (E2), testosterone (T), 11-ketotestosteron (11-KT) and 17α,20β-dihydroxy-4-pregnen-3-one (17,20β-P) were addressed in the experiment. Concomitant the maturational stages were described histologically. After 3 months, female pikeperch kept at 12°C revealed significant increases in the GSI and plasma E2 concentration and 90% of the females were mid-vitellogenic. After 5 months, females kept between 9 and 15°C exhibited significant up-regulation of E2 and GSI as well as comparable histological outcome. At 6 and 23°C in nearly all females stagnation of oogenesis was recorded. Congruently, T was increased at 12 and 15°C. Expression analysis revealed a significant up-regulation of LHβ and FSHβ mRNA in females from early-vitellogenesis, and from mid-spermatogenesis in males, correlated to elevated plasma concentrations of steroids (except for E2 in males). In conclusion, moderate temperatures (12-15°C for) for at least 3 months were required to proceed with first maturation in juvenile pikeperch. The most efficient effect was observed at 12°C, while high (23°C) or low (6°C) temperatures prevented gonadal maturation. So temperature was identified as a prime factor in the induction of puberty in pikeperch, as revealed by histological as well as endocrine parameters.
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Faisal M, Schulz C, Eissa A, Whelan G. High prevalence of buccal ulcerations in largemouth bass, Micropterus salmoides (Centrarchidae) from Michigan inland lakes associated with Myzobdella lugubris Leidy 1851 (Annelida: Hirudinea). Parasite 2011; 18:79-84. [PMID: 21395209 PMCID: PMC3671407 DOI: 10.1051/parasite/2011181079] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Widespread mouth ulcerations were observed in largemouth bass collected from eight inland lakes in the Lower Peninsula of Michigan during the summer months of 2002 and 2003. These ulcerations were associated with, and most likely caused by, leech parasitism. Through the use of morphological dichotomous keys, it was determined that all leeches collected are of one species: Myzobdella lugubris. Among the eight lakes examined, Lake Orion and Devils Lake had the highest prevalence of leech parasitism (34% and 29%, respectively) and mouth ulcerations (53% and 68%, respectively). Statistical analyses demonstrated that leech and ulcer prevalence varied significantly from one lake to the other. Additionally, it was determined that the relationship between the prevalence of ulcers and the prevalence of leech attachment is significant, indicating that leech parasitism is most likely the cause of ulceration. The ulcers exhibited deep hemorrhagic centers and raised irregular edges. Affected areas lost their epithelial lining and submucosa, with masses of bacteria colonizing the damaged tissues. Since largemouth bass is a popular global sportfish and critical to the food web of inland lakes, there are concerns that the presence of leeches, damaged buccal mucosa, and general unsightliness may negatively affect this important sportfishery.
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Schildgen V, Lusebrink J, Schulz C, Tillmann RL, Engel-Riedel W, Stoelben E, Schildgen O, Brockmann M. EGFR mutations: Comparison of Sanger- and pyrosequencing. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e21019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Giessen C, Stintzing S, Laubender RP, Ankerst DP, Schulz C, Moosmann N, Modest DP, Schalhorn A, von Weikersthal LF, Heinemann V. Analysis for prognostic factors of 60-day mortality: evaluation of an irinotecan-based phase III trial performed in the first-line treatment of metastatic colorectal cancer. Clin Colorectal Cancer 2011; 10:317-24. [PMID: 21729676 DOI: 10.1016/j.clcc.2011.03.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 03/08/2011] [Accepted: 03/15/2011] [Indexed: 11/29/2022]
Abstract
BACKGROUND Mortality rates in published irinotecan-based trials range between 1.7% and 5.0%. This analysis aimed to evaluate clinical and histopathologic factors associated with 60-day mortality in first-line therapy for metastatic colorectal cancer (mCRC). PATIENTS AND METHODS Sixty-day all-cause and disease-specific mortality rates from 479 patients who participated in a randomized phase III study comparing FUFIRI (5-fluorouracil [5-FU], leucovorin, irinotecan) (n = 238) vs. mIROX (modified irinotecan plus oxaliplatin (n = 241) were evaluated for association with prognostic factors such as platelet counts, alkaline phosphatase (AP) levels, white blood cell (WBC) counts, hemoglobin values, lactate dehydrogenase (LDH) levels, carcinoembryonic antigen (CEA) levels, and several other baseline parameters using univariate and multivariate logistic regression analyses applied to patients combined from both treatment groups. RESULTS The all-cause 60-day mortality rate was 5.0% (24/479). Thirteen patients (5.5%) in the FUFIRI arm died within the first 60 days of treatment compared with 11 (4.6%) patients in the mIROX arm (P = .68). Among the 24 patients in both treatment arms, mortality was qualified as disease related in 15 (63%) patients and treatment related in 7 (29%) patients (P = .695). In multivariate analyses, high LDH levels (P = .010) and an elevated WBC count (P = .006) remained as significant independent prognostic factors. Low Karnofsky performance status (KPS) showed a strong trend but failed to reach statistical significance (P = .057) as did AP levels and the number of metastatic sites. CONCLUSION In this study 63% of the early deaths were disease related, whereas only 29% were possibly related to study medication. Independent prognostic factors for early mortality were LDH levels and WBC counts. KPS showed a strong trend in the multivariate analysis. Future investigation may consider LDH levels and WBC counts for exclusion criteria.
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Faust S, Dreier T, Schulz C. Temperature and bath gas composition dependence of effective fluorescence lifetimes of toluene excited at 266nm. Chem Phys 2011. [DOI: 10.1016/j.chemphys.2011.03.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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