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Zurl B, Tiefling R, Winkler P, Kindl P, Kapp K. Hounsfield units variations. Strahlenther Onkol 2013; 190:88-93. [DOI: 10.1007/s00066-013-0464-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 09/11/2013] [Indexed: 01/16/2023]
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von Kalle T, Heim N, Hospach T, Langendörfer M, Winkler P, Stuber T. Typical patterns of bone involvement in whole-body MRI of patients with chronic recurrent multifocal osteomyelitis (CRMO). ROFO-FORTSCHR RONTG 2013; 185:655-61. [PMID: 23696017 DOI: 10.1055/s-0033-1335283] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE The diagnosis of CRMO often involves a long patient history. We evaluated the spectrum of bone involvement in whole-body magnetic resonance imaging (WB-MRI) and assessed its potential contribution to a more rapid diagnosis. MATERIALS AND METHODS WB-MRI (1.5 T, coronal STIR sequences) in 53 children and adolescents (mean age 11 years, 4.8 - 15.1) with histologically (n = 37) or clinically (n = 16) confirmed CRMO were retrospectively reviewed by two experienced pediatric radiologists. RESULTS WB-MRI revealed multifocal lesions in all but one patients. Only 26 of them had presented with multifocal complaints. We detected 1 - 27 geographic lesions/patient (mean 9.7). 510 of 513 lesions were significantly hyperintense compared to normal bone marrow. The pelvis, lower extremities, shoulders and spine were most frequently involved. 40 patients (75 %) had bilateral symmetrical involvement of bones. Most of the lesions were located in tubular bones, in 87 % adjacent to one or both sides of a growth plate. 32 % of lesions showed periosteal involvement. Of 456 affected bones, 33 (7.2 %) were deformed, 6 (18 %) were vertebra plana. CONCLUSION In the absence of more specific diagnostic criteria, WB-MRI can, in synopsis with clinical findings, substantially contribute to a rapid diagnosis of CRMO. It discovers the typical pattern of multifocal and bilateral bone involvement more often than has been reported for targeted MRI. It readily reveals the characteristic proximity of lesions to growth plates, the sacroiliac joint and triradiate cartilage and helps to uncover asymptomatic spinal complications.
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Pfeuffer M, Auinger A, Bley U, Kraus-Stojanowic I, Laue C, Winkler P, Rüfer CE, Frank J, Bösch-Saadatmandi C, Rimbach G, Schrezenmeir J. Effect of quercetin on traits of the metabolic syndrome, endothelial function and inflammation in men with different APOE isoforms. Nutr Metab Cardiovasc Dis 2013; 23:403-409. [PMID: 22118955 DOI: 10.1016/j.numecd.2011.08.010] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 08/10/2011] [Accepted: 08/22/2011] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND AIMS The polyphenol quercetin may prevent cardiovascular diseases due to its vasorelaxant and anti-oxidative properties. We investigated the effects of quercetin on risk factors of atherosclerosis, biomarkers of inflammation and oxidative stress, depending on the apolipoprotein E (APOE) genotype. METHODS AND RESULTS In a double-blind crossover study 49 healthy male subjects with APOE genotype 3/3 (n = 19), 3/4 (n = 22) and 4/4 (n = 8) consumed 150 mg/d quercetin or placebo for 8 weeks each, intermitted by a three-week washout phase. After each intervention, endothelial function, anthropometry, metabolic and inflammatory parameters were measured in the fasting and postprandial state following a standardized lipid-rich meal. Endothelial function was not changed. In all subjects combined, quercetin significantly decreased waist circumference (P = 0.004) and postprandial systolic blood pressure (P = 0.044). Postprandial triacylglycerol concentrations were significantly decreased and HDL-cholesterol concentrations increased after quercetin as compared to placebo consumption (P = 0.025). Quercetin also moderately increased levels of TNFα (P = 0.024). There was a significant gene-diet interaction for waist circumference and for body mass index (BMI). CONCLUSIONS Quercetin supplementation improved some risk factors of cardiovascular disease, yet exerted slightly pro-inflammatory effects. Genotype-dependent effects were seen only on waist circumference and BMI.
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Langsenlehner T, Döller C, Winkler P, Gallé G, Tauber G, Khayati S, Kapp K. Role of Residual Setup Errors and Intrafraction Motion in the Evaluation of Planning Target Volume Margins for Prostate Cancer Radiation Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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80
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Winkler P, Konrad T, Jakse G, Flitsch R, Partl R, Kapp K. Correlations Between Changes in Morphology and Dose Distribution for Adaptive Radiation Therapy in the Head and Neck Region. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2117] [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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81
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Abstract
This overview of Czech psychiatry begins with a brief review of its history; outlines its social, political and economic determinants and then describes the field itself. Both epidemiological and service-related information are discussed, together with the issues for mental health personnel, education and research. The heavy burden of communist history pervades most areas and must be taken into account in the specific characteristics that influence both the current situation and future prospects of Czech psychiatry. This consideration is essential for orientation in the field and to understand Czech particularities. The greatest challenges, however, originate from the fundamental changes that are going on in the world today. These challenges reach beyond national boundaries and include such phenomena as globalization, migration, ageing population, growing burden of mental ill health, the still prevailing stigma towards psychiatry, and the psychological roots and consequences of current financial and societal crises.
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von Kalle T, Fabig-Moritz C, Heumann H, Winkler P. Incidental findings in paranasal sinuses and mastoid cells: a cross-sectional magnetic resonance imaging (MRI) study in a pediatric radiology department. ROFO-FORTSCHR RONTG 2012; 184:629-34. [PMID: 22618483 DOI: 10.1055/s-0032-1312861] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE Misdiagnosis of "sinusitis" is still frequent in children, although mucosal swelling in the paranasal sinuses of children has been reported as a common incidental finding. Recent radiological publications on the problem are rare. We prospectively evaluated the mucosal thickening in the paranasal sinuses and mastoid cells of children who underwent MRI of the head for reasons other than sinusitis or mastoiditis. MATERIALS AND METHODS 147 patients, 0.2 - 22.7 years, median 8.9. Axial and sagittal T2 TSE images were evaluated by two experienced pediatric radiologists. Categories for the degree of mucosal swelling were for the maxillary, frontal and sphenoid sinuses: no swelling, minor: < 5 mm, or major: ≥ 5 mm; for ethmoid cells and mastoid cells: not present, minor: ≤ 50 % of cells, or major: > 50 %. RESULTS 61 % of children had one or more salient findings in their paranasal sinuses or mastoid cells. 48 % had mucosal swelling in their paranasal cavities, 25 % in their mastoid cells. The prevalence was higher among children less than 10 years of age (60 % and 42 %) and among children with current upper respiratory tract infection (71 % and 35 %). There was no correlation to a history of headache, snoring, asthma and allergies, or to gender or place of residence. CONCLUSION Mucosal swelling in paranasal sinuses and in mastoid cells is a frequent incidental finding in children. Even major mucosal swelling in a paranasal sinus is not necessarily a sign of infection. In radiological reports the terms "sinusitis" and "mastoiditis" should therefore be used with great caution. The initiation of treatment should be based on clinical symptoms and not on radiological abnormalities alone.
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Winkler P. Entzündliche ZNS-Erkrankungen im Kindes und Jugendalter. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1310665] [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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84
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85
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Winkler P, McDermott KC, Caplovitz G, Webster M. Figural Chasers. J Vis 2011. [DOI: 10.1167/11.11.1014] [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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86
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Zurl B, Stranzl H, Winkler P, Kapp K. 1209 poster ANALYSIS OF DAILY HEART DOSE DEVIATION FOR LEFT SIDED BREAST CANCER PATIENTS TREATED WITH RESPIRATORY GATING. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71331-7] [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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Hüpf T, Winkler P, Kapp K. 1226 poster INVESTIGATING AN IMAGE GUIDED POSITIONING SYSTEM VIA MV TREATMENT BEAM IMAGES. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71348-2] [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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Winkler P, Lodron G, Mayer H, Uray M, Jakse G, Flitsch R, Zurl B, Kapp K. 1206 poster SUSCEPTIBILITY OF INTENSITY MODULATED (ARC) THERAPIES ON MORPHOLOGICAL CHANGES IN THE HEAD AND NECK REGION. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71328-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schroeder K, Bremm K, Alépée N, Bessems J, Blaauboer B, Boehn S, Burek C, Coecke S, Gombau L, Hewitt N, Heylings J, Huwyler J, Jaeger M, Jagelavicius M, Jarrett N, Ketelslegers H, Kocina I, Koester J, Kreysa J, Note R, Poth A, Radtke M, Rogiers V, Scheel J, Schulz T, Steinkellner H, Toeroek M, Whelan M, Winkler P, Diembeck W. Report from the EPAA workshop: In vitro ADME in safety testing used by EPAA industry sectors. Toxicol In Vitro 2011; 25:589-604. [DOI: 10.1016/j.tiv.2010.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 11/05/2010] [Accepted: 12/06/2010] [Indexed: 10/18/2022]
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Aeby P, Ashikaga T, Bessou-Touya S, Schepky A, Gerberick F, Kern P, Marrec-Fairley M, Maxwell G, Ovigne JM, Sakaguchi H, Reisinger K, Tailhardat M, Martinozzi-Teissier S, Winkler P. Identifying and characterizing chemical skin sensitizers without animal testing: Colipa’s research and method development program. Toxicol In Vitro 2010; 24:1465-73. [DOI: 10.1016/j.tiv.2010.07.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 06/29/2010] [Accepted: 07/06/2010] [Indexed: 10/19/2022]
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91
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Aeby P, Ashikaga T, Bessou-Touya S, Schepky A, Gerberick F, Kern P, Marrec-Fairley M, Maxwell G, Ovigne J, Sakaguchi H, Reisinger K, Tailhardat M, Teissier S, Winkler P. The Colipa strategy for the development and evaluation of novel alternative methods for the identification of skin sensitizers. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.488] [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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92
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Winkler P, Paras C, Meyers A, Webster M. Center-surround interactions in face perception. J Vis 2010. [DOI: 10.1167/9.8.524] [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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93
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Halen K, Meyers A, Winkler P, Werner J, Webster M. Color appearance and compensation in the near periphery. J Vis 2010. [DOI: 10.1167/9.8.328] [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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Schmid H, Watton PN, Maurer MM, Wimmer J, Winkler P, Wang YK, Röhrle O, Itskov M. Impact of transmural heterogeneities on arterial adaptation. Biomech Model Mechanobiol 2009; 9:295-315. [DOI: 10.1007/s10237-009-0177-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Accepted: 10/26/2009] [Indexed: 10/20/2022]
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Herrmann J, Rubin D, Häsler R, Helwig U, Pfeuffer M, Auinger A, Laue C, Winkler P, Schreiber S, Bell D, Schrezenmeir J. Isomer-specific effects of CLA on gene expression in human adipose tissue depending on PPARgamma2 P12A polymorphism: a double blind, randomized, controlled cross-over study. Lipids Health Dis 2009; 8:35. [PMID: 19689798 PMCID: PMC2754469 DOI: 10.1186/1476-511x-8-35] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 08/18/2009] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Peroxisome proliferator-activated receptor (PPAR)gamma is a key regulator in adipose tissue. The rare variant Pro12Ala of PPARgamma2 is associated with a decreased risk of insulin resistance. Being dietary PPARgamma ligands, conjugated linoleic acids (CLAs) received considerable attention because of their effects on body composition, cancer, atherosclerosis, diabetes, obesity and inflammation, although some effects were only demonstrated in animal trials and the results in human studies were not always consistent. In the present study effects of CLA supplementation on genome wide gene expression in adipose tissue biopsies from 11 Ala12Ala and 23 Pro12Pro men were investigated. Subjects underwent four intervention periods (4 wk) in a randomized double blind cross-over design receiving 4.25 g/d of either cis-9, trans-11 CLA, trans-10,cis-12 CLA, 1:1 mixture of both isomers or a reference linoleic acid oil preparation. After each intervention biopsies were taken, whole genome expression microarrays were applied, and genes of interest were verified by realtime PCR. RESULTS The following genes of lipid metabolism were regulated by CLA: LDLR, FASN, SCD, FADS1 and UCP2 were induced, while ABCA1, CD36 and CA3 were repressed. Transcription factors PPARgamma, NFAT5, CREB5 and EBF1, the adipokine NAMPT, members of the insulin signaling cascade SORBS1 and IGF1 and IL6ST were repressed, while the adipokine THBS1 and GLUT4 involved in insulin signaling were induced. Compared to trans-10,cis-12 CLA and the CLA mixture the cis-9, trans-11 CLA isomer exerted weaker effects. Only CD36 (-1.2 fold) and THBS1 (1.5 fold) were regulated. The CLA effect on expression of PPARgamma and leptin genes depends on the PPARgamma2 genotype. CONCLUSION The data suggest that the isomer specific influence of CLA on glucose and lipid metabolism is genotype dependent and at least in part mediated by PPARgamma. TRIAL REGISTRATION http://www.controlled-trials.com: ISRCTN91188075.
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Winkler P, Doeller C, Howischer P, Kapp K. IGRT-BASED ANALYSIS OF INTRA-FRACTION MOVEMENTS IN THE TREATMENT OF RECTAL CARCINOMA IN PRONE POSITION. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73041-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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97
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Guthoff R, Winkler P, Helmke K, Berger R. Diagnosis and treatment control of choroidal melanomas--the role of B-scan and Doppler-technique. Acta Ophthalmol 2009:59-61. [PMID: 1332396 DOI: 10.1111/j.1755-3768.1992.tb04926.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
B-scan guided pulsed Doppler ultrasonography was applied in 62 patients with unilateral malignant melanoma. Prior to radiotherapy Doppler frequency shifts were detected in all but one neoplasm. The average systolic tumour blood flow velocity was recorded as 18.8 +/- 7.6 cm/s. Frequency shifts after radiotherapy are described. Probably the methods will find a place in the evaluation of indeterminate fundus lesions and in the follow-up of irradiated ocular melanomas.
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von Kalle T, Langendörfer M, Fernandez FF, Winkler P. Combined dynamic contrast-enhancement and serial 3D-subtraction analysis in magnetic resonance imaging of osteoid osteomas. Eur Radiol 2009; 19:2508-17. [PMID: 19444454 DOI: 10.1007/s00330-009-1430-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Revised: 03/22/2009] [Accepted: 04/04/2009] [Indexed: 12/30/2022]
Abstract
The purpose of this study was to retrospectively correlate the results of dynamic contrast-enhanced magnetic resonance imaging (MRI) with histological and clinical diagnoses in patients with osteoid osteomas. Fifty-four patients with the MR diagnosis of osteoid osteoma were studied. MRI (1.5 Tesla) consisted of thin-section STIR sequences, dynamic 3D T1 gradient echo sequences during application of contrast material, and high-resolution postcontrast T1 spin echo sequences with fat saturation (maximum voxel size 0.6 x 0.6 x 3.0 mm). Evaluation was focused on serial image subtraction during the early phase after contrast injection and on time-intensity curves. The surrounding edema was helpful in finding the nidus in each lesion. In 49 of 54 patients (90.7%), the diagnosis of osteoid osteoma was certain or highly probable (sensitivity 1.0, positive predictive value 0.91). A total of 38 of 54 osteoid osteomas were histologically proven. Five MRI diagnoses were regarded as false positives. A similar proportion has been reported for computed tomography. Tailored high-resolution MR examinations with dynamic contrast enhancement can reliably diagnose osteoid osteomas and exactly localize the nidus without radiation exposure. We propose a stepwise approach with STIR sequences, dynamic contrast-enhanced scanning, and high-resolution postcontrast T1 spin echo sequences with fat saturation.
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Winkler P, Dantonello T. Bildgebung bei der Cooperativen Weichteilsarkomstudie (CWS) – MRT Diagnostik. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1220988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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100
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Winkler P. Entzündliche Hirnerkrankungen im Kindesalter. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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