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Albrecht T, Salomon J, Stichnoth H, Baumann I, Mall MA. Regional differences in Cl- conductance in human nasal epithelial primary cells (hNEpC) of patients with chronic rhinosinusitis. Pneumologie 2015. [DOI: 10.1055/s-0035-1556598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Albrecht T, Schilperoort M, Zhang S, Krämer BK, Kriz W, Van den Born J, Baelde H, De Heer E, Yard BA, Hauske SJ. L-Carnosine attenuates the development of diabetic nephropathy in the BTBR ob/ob mouse model. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Zhang S, Pfister F, Lindner H, Albrecht T, Classen S, Kabtni S, Peters V, Klessens C, van den Born J, Navis G, Bakker S, de Heer E, Krämer B, Yard B, Hauske S. Carnosinase concentration and activity in CNDP1 (CTG)5 homozygous T2DM patients with and without nephropathy. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Albrecht T, Tepe G, Werk M, Zeller T, Kutschera M, Speck U. Einfluss von Patienten- und Läsionscharakteristika auf das Ergebnis der PTA der AFS und der A. poplitea mit DEB – Metaanalyse dreier kontrollierter randomisierter Studien. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gohli J, Lifjeld J, Albrecht T. Migration distance is positively associated with sex-linked genetic diversity in passerine birds. ETHOL ECOL EVOL 2015. [DOI: 10.1080/03949370.2015.1018954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Krille L, Dreger S, Schindel R, Albrecht T, Asmussen M, Barkhausen J, Berthold JD, Chavan A, Claussen C, Forsting M, Gianicolo EAL, Jablonka K, Jahnen A, Langer M, Laniado M, Lotz J, Mentzel HJ, Queißer-Wahrendorf A, Rompel O, Schlick I, Schneider K, Schumacher M, Seidenbusch M, Spix C, Spors B, Staatz G, Vogl T, Wagner J, Weisser G, Zeeb H, Blettner M. Risk of cancer incidence before the age of 15 years after exposure to ionising radiation from computed tomography: results from a German cohort study. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:1-12. [PMID: 25567615 DOI: 10.1007/s00411-014-0580-3] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/12/2014] [Indexed: 06/04/2023]
Abstract
The aim of this cohort study was to assess the risk of developing cancer, specifically leukaemia, tumours of the central nervous system and lymphoma, before the age of 15 years in children previously exposed to computed tomography (CT) in Germany. Data for children with at least one CT between 1980 and 2010 were abstracted from 20 hospitals. Cancer cases occurring between 1980 and 2010 were identified by stochastic linkage with the German Childhood Cancer Registry (GCCR). For all cases and a sample of non-cases, radiology reports were reviewed to assess the underlying medical conditions at time of the CT. Cases were only included if diagnosis occurred at least 2 years after the first CT and no signs of cancer were recorded in the radiology reports. Standardised incidence ratios (SIR) using incidence rates from the general population were estimated. The cohort included information on 71,073 CT examinations in 44,584 children contributing 161,407 person-years at risk with 46 cases initially identified through linkage with the GCCR. Seven cases had to be excluded due to signs possibly suggestive of cancer at the time of first CT. Overall, more cancer cases were observed (O) than expected (E), but this was mainly driven by unexpected and possibly biased results for lymphomas. For leukaemia, the SIR (SIR = O/E) was 1.72 (95 % CI 0.89-3.01, O = 12), and for CNS tumours, the SIR was 1.35 (95 % CI 0.54-2.78, O = 7). Despite careful examination of the medical information, confounding by indication or reverse causation cannot be ruled out completely and may explain parts of the excess. Furthermore, the CT exposure may have been underestimated as only data from the participating clinics were available. This should be taken into account when interpreting risk estimates.
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Gögebakan Ö, Albrecht T, Osterhoff MA, Reimann AJ. Ist die Panniculitis mesenterialis (PM) tatsächlich ein paraneoplastisches Phänomen? Eine Fall-Kontroll Studie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Koleček J, Albrecht T, Reif J. Predictors of extinction risk of passerine birds in a Central European country. Anim Conserv 2014. [DOI: 10.1111/acv.12117] [Citation(s) in RCA: 10] [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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Manne S, Kashy D, Albrecht T, Wong YN, Lederman Flamm A, Benson AB, Miller SM, Fleisher L, Buzaglo J, Roach N, Katz M, Ross E, Collins M, Poole D, Raivitch S, Miller DM, Kinzy TG, Liu T, Meropol NJ. Attitudinal barriers to participation in oncology clinical trials: factor analysis and correlates of barriers. Eur J Cancer Care (Engl) 2014; 24:28-38. [PMID: 24467411 PMCID: PMC4417937 DOI: 10.1111/ecc.12180] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2013] [Indexed: 11/26/2022]
Abstract
Patient participation in cancer clinical trials is low. Little is known about attitudinal barriers to participation, particularly among patients who may be offered a trial during an imminent initial oncology consult. The aims of the present study were to confirm the presence of proposed subscales of a recently developed cancer clinical trial attitudinal barriers measure, describe the most common cancer clinical trials attitudinal barriers, and evaluate socio-demographic, medical and financial factors associated with attitudinal barriers. A total of 1256 patients completed a survey assessing demographic factors, perceived financial burden, prior trial participation and attitudinal barriers to clinical trials participation. Results of a factor analysis did not confirm the presence of the proposed four attitudinal barriers subscale/factors. Rather, a single factor represented the best fit to the data. The most highly-rated barriers were fear of side-effects, worry about health insurance and efficacy concerns. Results suggested that less educated patients, patients with non-metastatic disease, patients with no previous oncology clinical trial participation, and patients reporting greater perceived financial burden from cancer care were associated with higher barriers. These patients may need extra attention in terms of decisional support. Overall, patients with fewer personal resources (education, financial issues) report more attitudinal barriers and should be targeted for additional decisional support.
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Gögebakan Ö, Albrecht T, Osterhoff M, Reimann A. Is mesenteric panniculitis truely a paraneoplastic phenomenon? A matched pair analysis. Eur J Radiol 2013; 82:1853-9. [DOI: 10.1016/j.ejrad.2013.06.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/30/2013] [Accepted: 06/26/2013] [Indexed: 10/26/2022]
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Hohmann J, Müller A, Skrok J, Wolf KJ, Martegani A, Dietrich CF, Albrecht T. Detektion von HCC und Lebermetastasen mit BR14: Abschließende Ergebnisse einer multizentrischen Phase IIA Studie. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346346] [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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Champagnon J, Crochet PA, Kreisinger J, Čížková D, Gauthier-Clerc M, Massez G, Söderquist P, Albrecht T, Guillemain M. Assessing the genetic impact of massive restocking on wild mallard. Anim Conserv 2012. [DOI: 10.1111/j.1469-1795.2012.00600.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
The quantum-mechanical tunnelling effect allows charge transport across nanometre-scale gaps between conducting electrodes. Application of a voltage between these electrodes leads to a measurable tunnelling current, which is highly sensitive to the gap size, the voltage applied and the medium in the gap. Applied to liquid environments, this offers interesting prospects of using tunnelling currents as a sensitive tool to study fundamental interfacial processes, to probe chemical reactions at the single-molecule level and to analyse the composition of biopolymers such as DNA, RNA or proteins. This offers the possibility of a new class of sensor devices with unique capabilities.
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Albrecht T, Wirsching J, Berger G. Sequentielle nicht-selektive, nicht-okklusive TACE weit fortgeschrittener HCC mit degradierbaren Stärkemikrosphären, Carboplatin und Docetaxel - Verträglichkeit und Langzeitergebnisse. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311210] [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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Meyer B, Klein S, Krix M, Aschoff A, Wacker F, Albrecht T. Comparison of a Standard and a High-Concentration Contrast Medium Protocol for MDCT Angiography of the Lower Limb Arteries. ROFO-FORTSCHR RONTG 2012; 184:527-34. [PMID: 22473508 DOI: 10.1055/s-0031-1299412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Piscaglia F, Nolsøe C, Dietrich CF, Cosgrove DO, Gilja OH, Bachmann Nielsen M, Albrecht T, Barozzi L, Bertolotto M, Catalano O, Claudon M, Clevert DA, Correas JM, D'Onofrio M, Drudi FM, Eyding J, Giovannini M, Hocke M, Ignee A, Jung EM, Klauser AS, Lassau N, Leen E, Mathis G, Saftoiu A, Seidel G, Sidhu PS, ter Haar G, Timmerman D, Weskott HP. The EFSUMB Guidelines and Recommendations on the Clinical Practice of Contrast Enhanced Ultrasound (CEUS): update 2011 on non-hepatic applications. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2012; 33:33-59. [PMID: 21874631 DOI: 10.1055/s-0031-1281676] [Citation(s) in RCA: 659] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
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Busek M, Polk C, Albrecht T, Marx U, König J, Sonntag F. Automated Micro-PIV measurement in Lab-on-a-Chip systems. BIOMED ENG-BIOMED TE 2012. [DOI: 10.1515/bmt-2012-4064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Albrecht T, Plinkert PK. [QR-Code-what is that?]. HNO 2011; 59:1224-5. [PMID: 22159340 DOI: 10.1007/s00106-011-2421-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Simon C, El-Baba B, Albrecht T, Holsinger F, Plinkert P. Erste Erfahrung in der transoralen Roboterchirurgie mit dem da-Vinci®-Chirurgiesystem. HNO 2011; 59:261-5. [DOI: 10.1007/s00106-010-2254-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Albrecht T, Kirsten A, Kappert H, Fischer H. Fracture load of different crown systems on zirconia implant abutments. Dent Mater 2011; 27:298-303. [DOI: 10.1016/j.dental.2010.11.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Accepted: 11/01/2010] [Indexed: 02/04/2023]
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Sternschulte H, Albrecht T, Thonke K, Sauer R, Grieβer M, Grasserbauer M. Cathodoluminescence Studies of Bound Excitons and Near Band Gap Emission Lines in Boron- and Phosphorus-Doped CVD-Diamonds. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-423-693] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractCathodoluminescence measurements at cryogenic temperatures are reported on boron- and phosphorus-doped CVD-diamond films grown on silicon substrates. Boron and phosphorus concentrations were determined by SIMS measurements; for boron, they reached from unintentional background doping levels up to 3500 ppm. At increasing boron concentrations, the radiative recombination of boron bound excitons (BEto) at 5.22 eV photon energy systematically broadens and shifts down to 4.99 eV whereas the free exciton emission (FEto) disappears for 40 ppm and higher. In the phosphorus-doped films we observe new lines at 5.16 eV and 4.99 eV which we ascribe to TO- and (TO+Or)-phonon assisted transitions of an exciton bound to a shallow impurity other than boron, possibly phosphorus or a phosphorus-related shallow complex.
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Heintze SD, Albrecht T, Cavalleri A, Steiner M. A new method to test the fracture probability of all-ceramic crowns with a dual-axis chewing simulator. Dent Mater 2010; 27:e10-9. [PMID: 20932564 DOI: 10.1016/j.dental.2010.09.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2009] [Revised: 06/01/2010] [Accepted: 09/06/2010] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The purpose of this study was to validate a new laboratory method to test all-ceramic systems with regard to the proportion of failures. METHODS Sixteen standardized mandibular molar crowns consisting of two different materials (IPS Empress, IPS e.max Press) were adhesively luted on CAD/CAM milled PMMA abutments (first lower molar, circular chamfer). All crowns were loaded applying an eccentric force in a Willytec chewing simulator (steel stylus, Ø 2.4 mm, 2 mm lateral movement from fossa to cuspal tip) with stepwise increase of the load (3, 5, 9 kg, 100,000 cycles each, 0.8 Hz) and simultaneous thermocycling (5°C/55°C×417 per phase). Another four crowns of each material were subjected to force measurements with a 3D force sensor during dynamic loading of each loading phase using two different lateral movements (from fossa to cusp and vice versa). RESULTS The cumulative forces for the three directions in space were much higher compared to the static load of the chewing simulator (maximal force at 3 kg 60 N, 5 kg 160 N, 9 kg 240 N). There was no statistically significant difference in the mean or maximal force between the two materials or two different lateral movements. During dynamic loading, no fractures occurred in the molar crowns made of IPS e.max Press, whereas 50% of the IPS Empress crowns showed failures (75% fractures and 25% chippings) (log-rank test p=0.002). Most of the Empress crowns fractured during the third loading phase (9 kg). CONCLUSIONS The forces that the dead weights exerted during dynamic loading were 2-3 times higher than those during static loading. None of the lithium disilicate ceramic molar crowns fractured, whereas half of the leucite reinforced molar crowns failed during dynamic loading.
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Werncke T, Albrecht T, Wolf KJ, Meyer B. Dual Energy CT of the Peripheral Arteries: a Phantom Study to Assess the Effect of Automatic Plaque Removal on Stenosis Grading. ROFO-FORTSCHR RONTG 2010; 182:682-9. [DOI: 10.1055/s-0029-1245268] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Frericks B, Albrecht T, Wittmann M, Ritz JP, Lehmann K, Wolf KJ. Multipolare Radiofrequenzablation von Lebermetastasen des kolorektalen Karzinoms – Ergebnisse nach über 6 Jahren. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tepe G, Zeller T, Albrecht T, Claussen C, Brechtel K, Speck U. Lokale Applikation von Paclitaxel zur Prävention der Restenose bei peripherer arterieller Verschlusskrankheit. Persistierender Effekt der Medikamenten beschichteten Ballons auch nach zwei Jahren. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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