101
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Mullins C, Weber D, Block E, Smith J, Brouk M, Bradford B. Short communication: Supplementing lysine and methionine in a lactation diet containing a high concentration of wet corn gluten feed did not alter milk protein yield. J Dairy Sci 2013; 96:5300-5. [DOI: 10.3168/jds.2013-6755] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 05/01/2013] [Indexed: 01/15/2023]
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Carlson DE, Vogelstein JT, Stoetzner CR, Kipke D, Weber D, Dunson DB, Carin L. Multichannel electrophysiological spike sorting via joint dictionary learning and mixture modeling. IEEE Trans Biomed Eng 2013; 61:41-54. [PMID: 23912463 DOI: 10.1109/tbme.2013.2275751] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We propose a methodology for joint feature learning and clustering of multichannel extracellular electrophysiological data, across multiple recording periods for action potential detection and classification (sorting). Our methodology improves over the previous state of the art principally in four ways. First, via sharing information across channels, we can better distinguish between single-unit spikes and artifacts. Second, our proposed "focused mixture model" (FMM) deals with units appearing, disappearing, or reappearing over multiple recording days, an important consideration for any chronic experiment. Third, by jointly learning features and clusters, we improve performance over previous attempts that proceeded via a two-stage learning process. Fourth, by directly modeling spike rate, we improve the detection of sparsely firing neurons. Moreover, our Bayesian methodology seamlessly handles missing data. We present the state-of-the-art performance without requiring manually tuning hyperparameters, considering both a public dataset with partial ground truth and a new experimental dataset.
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103
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Keystone E, Weber D, Xiong J, Sun Y, Grant A. FRI0226 Rituximab versus abatacept in rheumatoid arthritis patients with an inadequate response to prior biologic therapy: a retrospective single-center study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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104
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Weber D, Bramlage P, Kaltheuner M, Ernst S, Koch A, Danne T. Versorgung von Patienten mit Typ-2 Diabetes in diabetologischen Schwerpunktpraxen in Deutschland - erste Ergebnisse der Diabetes Versorgungs-Evaluation (DIVE). DIABETOL STOFFWECHS 2013. [DOI: 10.1055/s-0033-1341883] [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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105
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Caparrotti F, Fargier O, Laouiti M, Smoll N, Weber D. Whole Brain Radiation Therapy With Simultaneous Integrated Boost to 1-4 Brain Metastases: A Prospective Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.755] [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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106
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Stumpp P, Gosch D, Kühn A, Sorge I, Weber D, Lehmkuhl L, Kahn T, Nagel HD. Performance of an automatic dose control system for CT: patient studies. ROFO-FORTSCHR RONTG 2012; 185:144-52. [PMID: 23108902 DOI: 10.1055/s-0032-1325441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE To study the effect of an automatic dose control (ADC) system with adequate noise characteristic on the individual perception of image noise and diagnostic acceptance compared to objectively measured image noise and the dose reductions achieved in a representative group of patients. MATERIALS AND METHODS In a retrospective study two matched cohorts of 20 patients each were identified: a manual cohort with exposure settings according to body size (small - regular - large) and an ADC cohort with exposure settings calculated by the ADC system (DoseRight 2.0™, Philips Healthcare). For each patient, 12 images from 6 defined anatomic levels from contrast-enhanced scans of chest and abdomen/pelvis were analyzed by 4 independent readers concerning image noise and diagnostic acceptance on a five-point Likert scale and evaluated for objectively measured image noise. Radiation exposure was calculated from recorded exposure data. RESULTS Use of the ADC system reduced the average effective dose for patients by 36 % in chest scans (3.2 vs. 4.9 mSv) and by 17 % in abdomen/pelvis scans (7.6 vs. 8.3 mSv). Average objective noise was slightly lower in the manual cohort (11.1 vs. 12.8 HU), correlating with a slightly better rating in subjective noise score (4.4 vs. 4.2). However, diagnostic acceptance was rated almost equal in both cohorts with excellent image quality (4.6 vs. 4.5). CONCLUSION Use of an ADC system with adequate noise characteristic leads to significant reductions in radiation exposure for patients while maintaining excellent image quality.
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107
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Hickstein B, Meynhardt B, Niemeier O, Weber D. Development of an Efficient Method for the Removal of Silane Compounds from Exhaust Air. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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108
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Hector D, Powell L, Weber D, Cooke L, Cass Y. Promoting active play in the supported playgroup setting – Insights from two pilot studies. Obes Res Clin Pract 2012. [DOI: 10.1016/j.orcp.2012.08.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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109
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Weber D, Mora S, Moll C, Lotzmann U, Rief W, Neff A. Biofeedbackgestützte kognitive Verhaltenstherapie bei craniomandibulären Dysfunktionen. Dtsch Med Wochenschr 2012. [DOI: 10.1055/s-0032-1323517] [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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110
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Weber D, Lotzmann U, Künzel HJ. Zum Einfluss des Verlustes von Seitenzähnen auf die Sprachlautbildung – Eine klinische Simulation. Dtsch Med Wochenschr 2012. [DOI: 10.1055/s-0032-1323516] [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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111
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Zheng Y, Yang J, Qian J, Qiu P, Hanabuchi S, Lu Y, Wang Z, Liu Z, Li H, He J, Lin P, Weber D, Davis RE, Kwak L, Cai Z, Yi Q. PSGL-1/selectin and ICAM-1/CD18 interactions are involved in macrophage-induced drug resistance in myeloma. Leukemia 2012; 27:702-10. [PMID: 22996336 DOI: 10.1038/leu.2012.272] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chemoresistance is the major obstacle in multiple myeloma (MM) management. We previously showed that macrophages protect myeloma cells, on a cell contact basis, from melphalan or dexamethasone-induced apoptosis in vitro. In this study, we found that macrophage-mediated myeloma drug resistance was also seen with purified macrophages from myeloma patients' bone marrow (BM) in vitro and was confirmed in vivo using the human myeloma-SCID (severe combined immunodeficient) mouse model. By profiling differentially regulated and paired plasma membrane protein genes, we showed that PSGL-1 (P-selectin glycoprotein ligand-1)/selectins and ICAM-1/CD18 played an important role in macrophage-mediated myeloma cell drug resistance, as blocking antibodies against these molecules or genetic knockdown of PSGL-1 or ICAM-1 in myeloma cells repressed macrophages' ability to protect myeloma cells. Interaction of macrophages and myeloma cells via these molecules activated Src and Erk1/2 kinases and c-myc pathways and suppressed caspase activation induced by chemotherapy drugs. Thus, our study sheds new light on the mechanism of drug resistance in MM and provides novel targets for improving the efficacy of chemotherapy in patients.
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Weber D, Wessel C, Reimann C, Schwickert C, Müller A, Ressler T, Pöttgen R, Bredow T, Dronskowski R, Lerch M. Anosovite-Type V3O5: A New Binary Oxide of Vanadium. Inorg Chem 2012; 51:8524-9. [DOI: 10.1021/ic301096d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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113
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Wessel C, Reimann C, Müller A, Weber D, Lerch M, Ressler T, Bredow T, Dronskowski R. Electronic structure and thermodynamics of V2O3 polymorphs. J Comput Chem 2012; 33:2102-7. [DOI: 10.1002/jcc.23046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 11/09/2022]
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114
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Weber D, Schneider R, Koch T, Geismar J, Schertler A, Bolsi A, Goitein G. Spot Scanning Based Proton Therapy for Skull Base Meningiomas: Long-Term Results from the Paul Scherrer Institute. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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115
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Chan A, Ayub A, Parambi R, Weber D, Chapman P, Martuza R, Barker F, Loeffler J. Long-Term Outcome after Proton-Beam Radiosurgery for Vestibular Schwannoma. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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116
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Akpa B, D’Agostino C, Gladden L, Hindle K, Manyar H, McGregor J, Li R, Neurock M, Sinha N, Stitt E, Weber D, Zeitler J, Rooney D. Solvent effects in the hydrogenation of 2-butanone. J Catal 2012. [DOI: 10.1016/j.jcat.2012.01.011] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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117
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Weber D, Faber-Heinemann G, Hess G, Hess E, Kaltheuner M, Krakow D, Lederle M, Molinski M, Reuter HM, Scheper N, Simonsohn M, Heinemann L. Klinische Wirksamkeit von DPP-4-Hemmern und GLP-1-Analoga bei 907 Patienten mit Typ 2 Diabetes mellitus in diabetologischen Schwerpunktpraxen. DIABETOL STOFFWECHS 2012. [DOI: 10.1055/s-0032-1314474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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118
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Smoll N, Gautschi O, Schatlo B, Schaller K, Weber D. Relative Survival of Supratentorial Low-Grade Gliomas. J Neurol Surg A Cent Eur Neurosurg 2012. [DOI: 10.1055/s-0032-1316257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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119
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Weber D, Anprasertporn P, Chrusciel D, Goretzke S. Anti-NMDA Receptor Encephalitis Presenting as Partial Seizures with Delayed Onset of Mood Disturbance (P02.158). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.158] [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] Open
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120
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Weber D, Hurkmans C, Melidis C, Teglas V, Lacombe D, Gregoire V. 349 QUALITY ASSURANCE IN RADIOTHERAPY: THE EORTC EXPERIENCE. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70305-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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121
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Fairchild A, Collette L, Hurkmans C, Baumert B, Weber D, Gulyban A, Poortmans P. 139 DOES QUALITY OF RADIOTHERAPY PREDICT OUTCOMES OF MULTICENTRE CLINICAL TRIALS? THE EORTC RADIATION ONCOLOGY GROUP EXPERIENCE. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70111-1] [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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122
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Chi KN, Beardsley E, Eigl BJ, Venner P, Hotte SJ, Winquist E, Ko YJ, Sridhar SS, Weber D, Saad F. A phase 2 study of patupilone in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel: Canadian Urologic Oncology Group study P07a. Ann Oncol 2012; 23:53-58. [PMID: 21765178 DOI: 10.1093/annonc/mdr336] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The purpose of this study was to determine the clinical activity of patupilone in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel. PATIENTS AND METHODS Eligible patients had progressive disease within 6 months of receiving docetaxel. Patupilone was administered 10 mg/m2 i.v. every 3 weeks. The primary end point was the proportion of patients with a confirmed≥50% prostate-specific antigen (PSA) decline. RESULTS Eighty-three patients were enrolled. At baseline, the median time to progression after prior docetaxel was 1.4 months (range 0-5.7). Gastrointestinal serious adverse events occurred in four of the six initial patients leading to a reduction of the starting dose of patupilone to 8 mg/m2 for subsequent patients. Grade 3-4 toxicity at this dose included diarrhea (22%), fatigue (21%), and anorexia (10%). One patient experienced grade 3-4 hematologic toxicity. A PSA decline of ≥50% occurred in 47% of patients. A partial measurable disease response occurred in 24% of assessable patients. A patient-reported pain response was observed in 59% of assessable patients. Median time to PSA progression was 6.1 months [95% confidence interval (CI) 4.7-8.0] and median overall survival was 11.3 months (95% CI 9.8-15.4). CONCLUSIONS Patupilone at 8 mg/m2 was tolerable, had antitumor activity, and was associated with symptomatic improvement in patients previously treated with docetaxel.
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Dimopoulos MA, Hussein M, Swern AS, Weber D. Impact of lenalidomide dose on progression-free survival in patients with relapsed or refractory multiple myeloma. Leukemia 2011; 25:1620-6. [PMID: 21747400 PMCID: PMC3194066 DOI: 10.1038/leu.2011.126] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This analysis assessed the effect of lenalidomide on progression-free survival (PFS). Patients with relapsed or refractory multiple myeloma (RRMM) who received lenalidomide plus dexamethasone in the MM-009 and MM-010 trials were pooled and those who had not progressed and were still receiving lenalidomide at 12 months were included. The median follow-up of surviving patients was 48 months. Of 353 patients who received lenalidomide plus dexamethasone, 116 (33%) had not progressed. Overall, 52 patients (45%) had no dose reductions, 25 (22%) had dose reductions ⩾12 months and 39 (34%) had dose reductions before 12 months. Patients who had dose reductions ⩾12 months had a significantly longer median PFS than those who had reductions before 12 months (P=0.007) or no dose reductions (P=0.039) (not reached vs 28.0 vs 36.8 months, respectively). In a multivariate Cox regression model, dose reduction ⩾12 months was an independent predictor of improved PFS (hazard ratio, 0.47; 95% confidence interval, 0.23–0.98) after adjusting for patient characteristics. The data suggest that to achieve maximum PFS benefit, patients with RRMM should be treated for ⩾12 months with full-dose lenalidomide plus dexamethasone. Thereafter, patients may benefit from lower-dose continued therapy; prospective studies are needed to confirm these findings.
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124
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Han G, Weber D, Neubrech F, Yamada I, Mitome M, Bando Y, Pucci A, Nagao T. Infrared spectroscopic and electron microscopic characterization of gold nanogap structure fabricated by focused ion beam. NANOTECHNOLOGY 2011; 22:275202. [PMID: 21597137 DOI: 10.1088/0957-4484/22/27/275202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Using infrared spectroscopy of plasmonic resonances and mapping of elemental composition and structure, we investigated the correlation between optical and structural properties of nanometre-scale gaps in gold nanorod dimers fabricated by electron beam lithography (EBL) and focused ion beam (FIB) milling. In spite of their very similar scanning electron microscopy (SEM) images, a fully cut nanogap and a shallower cut with slight imperfection near the gap region were clearly distinguished by their strongly different infrared plasmonic resonance behaviour. The differences in the infrared spectra are related to different structural and chemical results from elaborated cross-sectional transmission electron micrographs and energy dispersive x-ray spectrometry (EDX) mapping of the gap region.
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125
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Weber D, Stork A, Nakhal S, Wessel C, Reimann C, Hermes W, Müller A, Ressler T, Pöttgen R, Bredow T, Dronskowski R, Lerch M. Bixbyite-Type V2O3—A Metastable Polymorph of Vanadium Sesquioxide. Inorg Chem 2011; 50:6762-6. [DOI: 10.1021/ic200799n] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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