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Popp KH, Kosilek RP, Stalla GK, Stieg M, Berr C, Reincke M, Witt M, Würtz RP, Schneider HJ. Face classification technology as a new diagnostic tool for Cushing's syndrome – preliminary results. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1549083] [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: 10/23/2022]
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Proft F, Steinbach S, Dechant C, Witt M, Reindl C, Schulz S, Vielhauer V, Hilge R, Laubender RP, Manger K, Nüsslein H, Wendler J, Schuch F, Schulze-Koops H, Grunke M. Gustatory and olfactory function in patients with granulomatosis with polyangiitis (Wegener's). Scand J Rheumatol 2014; 43:512-8. [PMID: 25204208 DOI: 10.3109/03009742.2014.915056] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVES Recent findings suggest that autoimmune disorders predispose to a diminished capacity to taste and smell. This has been shown for patients with systemic lupus erythematosus as well as for patients with rheumatoid arthritis (RA). Granulomatosis with polyangiitis (GPA), with its particular manifestations in the upper respiratory tract, may therefore have an even higher impact on these senses. The aims of this study were to evaluate the gustatory and olfactory function in patients with GPA, to compare them to sex- and age-matched healthy controls, and to correlate these findings with their GPA disease severity. METHOD Patients with established GPA were analysed by standardized assessments for gustatory and olfactory functions and examined for disease activity, stage of disease, and treatment. RESULTS Forty-four GPA patients were tested for their chemosensory functions. Compared to age- and sex-matched healthy controls, GPA patients showed significantly decreased olfactory scores along with diminished scores for their gustatory functions. The diminished sense of smell in GPA patients correlated significantly with elevated C-reactive protein (CRP) values whereas the gustatory impairment correlated with the duration and extent of the disease. CONCLUSIONS Our results indicate that olfactory and gustatory functions are significantly decreased in GPA. As the olfactory function of these patients was comparable to patients with RA, chemosensory impairment may not simply be a consequence of the involvement of the upper respiratory tract, but rather a common complication of systemic autoimmune diseases.
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Roesky HW, Raubold T, Noltemeyer M, Witt M, Bohra R. Reaktion von N-Trimethylsilyl-N′(N″ -trimethylsilylammodiphenylphosphoranylidenimino) sulfamid mit Wolframoxitetrachlorid und die Struktur von (Cl3WNPPh2N)2 Reaction of N-Trimethylsilyl-N′(N″ -trimethylsilylaminodiphenylphosphoranylidene)sulfamide with Tungstenoxitetrachloride and the Structure of (Cl3WNPPh2N)2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2014. [DOI: 10.1515/znb-1992-0203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
1
The reaction of ClSO2N = PPh2Cl () with NH3 yields H2NSO2N = PPh2NH2 (2).This compound is converted to Me3Si(H)NSO2N = PPh2N(H)SiMe3 (3) by Me3SiNMe2. 3 reacts with WOCl4 under elimination of (Me3Si)2O and ClSO2NH2 to yield the eight-membered ring system (Cl3WNPPh2N)2 (4).The molecular structure of 4 was investigated by an X-ray structure analysis.
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Witt M, Frielinghausen J, Clevert D, Leipe J, Schulze-koops H, Mueller R, Grünke M. AB0990 Automated Ultrasound for the Detection of Synovitis in the Feet of Patients with Rheumatoid Arthritis (RA). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Witt M, Müller F, Leipe J, Proft F, Neumann C, Schulze-Koops H, Grunke M. SAT0201 The Relevance of Flexor Tendon Tenosynovitis to Small Joint Tenderness and Swelling: Data from A Prospective Early RA Cohort. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Witt M, Grunke M, Proft F, Baeuerle M, Aringer M, Burmester G, Chehab G, Fiehn C, Fischer-Betz R, Fleck M, Freivogel K, Haubitz M, Kötter I, Lovric S, Metzler C, Rubberth-Roth A, Schwarting A, Specker C, Tony HP, Unger L, Wassenberg S, Dörner T, Schulze-Koops H. Clinical outcomes and safety of rituximab treatment for patients with systemic lupus erythematosus (SLE) - results from a nationwide cohort in Germany (GRAID). Lupus 2014; 22:1142-9. [PMID: 24057058 DOI: 10.1177/0961203313503912] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The objective of this article is to evaluate the safety and clinical outcome of rituximab treatment in systemic lupus erythematosus (SLE) patients refractory to standard of care therapy in a real-life setting in Germany. METHODS The GRAID registry included patients with different autoimmune diseases who were given off-label treatment with rituximab. Data on safety and clinical response were collected retrospectively. In SLE patients, clinical parameters included tender and swollen joint counts, fatigue, myalgia, general wellbeing, Raynaud's and the SLEDAI index. Laboratory tests included dsDNA antibody titres, complement factors, hematologic parameters and proteinuria. Finally, the investigators rated their patients as non-, partial or complete responders based on clinical grounds. RESULTS Data from 85 SLE patients were collected, 69 female and 16 male, with a mean disease duration of 9.8 years. The mean follow-up period was 9.6 ± 7.4 months, resulting in 66.8 patient years of observation. A complete response was reported in 37 patients (46.8%), partial response in 27 (34.2%), no response in 15 (19.0%). On average, major clinical as well as laboratory efficacy parameters improved substantially, with the SLEDAI decreasing significantly from 12.2 to 3.3 points. Concerning safety, one infusion reaction leading to discontinuation of treatment occurred. Infections were reported with a rate of 19.5 (including six severe infections) per 100 patient years. CONCLUSION With the restrictions of a retrospective data collection, the results of this study confirm data of other registries, which suggest a favourable benefit-risk ratio of rituximab in patients with treatment-refractory SLE.
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Plautz T, Bashkirov V, Feng V, Hurley F, Johnson R, Leary C, Macafee S, Plumb A, Rykalin V, Sadrozinski HW, Schubert K, Schulte R, Schultze B, Steinberg D, Witt M, Zatserklyaniy A. 200 MeV proton radiography studies with a hand phantom using a prototype proton CT scanner. IEEE TRANSACTIONS ON MEDICAL IMAGING 2014; 33:875-81. [PMID: 24710156 PMCID: PMC3982192 DOI: 10.1109/tmi.2013.2297278] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Proton radiography has applications in patient alignment and verification procedures for proton beam radiation therapy. In this paper, we report an experiment which used 200 MeV protons to generate proton energy-loss and scattering radiographs of a hand phantom. The experiment used the first-generation proton computed tomography (CT) scanner prototype, which was installed on the research beam line of the clinical proton synchrotron at Loma Linda University Medical Center. It was found that while both radiographs displayed anatomical details of the hand phantom, the energy-loss radiograph had a noticeably higher resolution. Nonetheless, scattering radiography may yield more contrast between soft and bone tissue than energy-loss radiography, however, this requires further study. This study contributes to the optimization of the performance of the next-generation of clinical proton CT scanners. Furthermore, it demonstrates the potential of proton imaging (proton radiography and CT), which is now within reach of becoming available as a new, potentially low-dose medical imaging modality.
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Chaudhary A, Bair R, Bair E, Partouche J, Witt M, Villaflor V, Cohen E, Seiwert T, Vokes E, Haraf D. Mandibular Osteoradionecrosis After Chemoradiation Therapy for Locoregionally Advanced Head-and-Neck Cancer: A Prospective Study of the Dose–Effect Relationship in Accelerated Fractionation by Concomitant Boost With Cisplatin and Cetuximab From the EPIC Trial. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2013.11.056] [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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Hüttenrauch P, Witt M, Wolff D, Bosold S, Engenhart-Cabillic R, Sparenberg J, Vorwerk H, Zink K. Target volume coverage and dose to organs at risk in prostate cancer patients. Dose calculation on daily cone-beam CT data sets. Strahlenther Onkol 2014; 190:310-6. [PMID: 24424625 DOI: 10.1007/s00066-013-0483-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 10/16/2013] [Indexed: 11/24/2022]
Abstract
PURPOSE On the basis of correct Hounsfield unit to electron density calibration, cone-beam computed tomography (CBCT) data provide the opportunity for retrospective dose recalculation in the patient. Therefore, the consequences of translational positioning corrections and of morphological changes in the patient anatomy can be quantified for prostate cancer patients. MATERIALS AND METHODS The organs at risk were newly contoured on the CBCT data sets of 7 patients so as to evaluate the actual applied dose. The daily dose to the planning target volume (PTV) was recalculated with and without the translation data, which result from the real patient repositioning. RESULTS A CBCT-based dose recalculation with uncertainties less than 3 % is possible. The deviations between the planning CT and the CBCT without the translational positioning correction vector show an average dose difference of - 8 % inside the PTV. An inverse proportional relation between the mean bladder dose and the actual volume of the bladder could be established. The daily applied dose to the rectum is about 1-54 % higher than predicted by the planning CT. CONCLUSION A dose calculation based on CBCT data is possible. The daily positioning correction of the patient is necessary to avoid an underdosage in the PTV. The new contouring of the organs at risk - the bladder and rectum - allows a better appraisal to be made of the total applied dose to these organs.
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Bair R, Chaudhary A, Bair E, Partouche J, Witt M, Villaflor V, Cohen E, Seiwert T, Vokes E, Haraf D. Dysphagia and Aspiration After Chemoradiation Therapy for Locoregionally-Advanced Head-and-Neck Cancer: A Prospective Study of the Dose–Effect Relationship in Accelerated Fractionation by Concomitant Boost With Cisplatin and Cetuximab From the EPIC Trial. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.366] [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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Gaedke C, Witt M, Koene M, Berens von Rautenfeld D, Stadler P. Lymph flow determination in the equine hindlimb: Lymphoscintigraphic function studies. EQUINE VET EDUC 2013. [DOI: 10.1111/eve.12058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hovakimyan M, Maass F, Petersen J, Holzmann C, Witt M, Lukas J, Frech MJ, Hübner R, Rolfs A, Wree A. Combined therapy with cyclodextrin/allopregnanolone and miglustat improves motor but not cognitive functions in Niemann-Pick Type C1 mice. Neuroscience 2013; 252:201-11. [PMID: 23948640 DOI: 10.1016/j.neuroscience.2013.08.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 12/21/2022]
Abstract
Niemann-Pick Type C1 (NPC1) is an autosomal recessive disorder characterized by the accumulation of cholesterol and glycosphingolipids. Combination-treatment utilizing cyclodextrin, allopregnanolone and miglustat (CYCLO/ALLO/miglustat) can ameliorate NPC1 disease in a mutant mouse model. The present study was designed to add behavioral analysis in NPC1 mutant mice upon CYCLO/ALLO/miglustat therapy. NPC1 mutant (BALB/cJ NPC1NIH) and control mice were used. For the combination treatment mice were injected with CYCLO/ALLO weekly, starting at P7. The miglustat injection was performed daily from P10 till P23. Starting at P23, miglustat was added to the powdered chow. For the sham treatment of control and mutant mice the same schedule was used with 0.9% NaCl injection. Locomotor activity was assessed in open field, elevated plus maze and accelerod tests. For assessment of spatial learning and memory the Morris water maze test was conducted. Electron microscopy has been performed to support the behavioral data. The sham-treated mutant mice exhibited motor impairments in all performed tests. In the water maze the sham-treated mutants exhibited impairment in remembering the location of the hidden platform. CYCLO/ALLO/miglustat treatment positively influenced motor dysfunction: total distance and number of visits significantly increased, and accelerod performance improved. The spatial learning, however, did not benefit from therapy. At the morphological level, an excessive accumulation of electron-dense material was seen in the cerebellar Purkinje cells of mutant mice. A regression of these autophagosomal inclusions was seen upon therapy. CYCLO/ALLO/miglustat therapy ameliorates motor but not cognitive deficits in NPC1 mutant mice, suggesting unequal vulnerability of different brain areas to the treatment.
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Nigg AP, Malchus AM, Gruenke M, Witt M, Prinz J, Schulze-Koops H. SAT0277 Clinical Response in Early Psoriatic Arthritis may be Predicted by Rapid Reduction of a Semiquantitative Ultrasound Synovitis Score. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Reindl C, Tschernych A, Witt M, Nigg A, Laubender R, Schulze-Koops H, Grunke M. FRI0070 Evaluation of a patient reported outcome (PRO) based tool for the assessment of single joint intraarticular glucocorticosteroid injection. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nigg A, Malchus A, Grünke M, Witt M, Prinz J, Schulze-Koops H. SAT0294 Monitoring disease activity in early psoriatic arthritis with ultrasound - comparison of clinical responders and nonresponders. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Witt M, Müller F, Nigg A, Reindl C, Schulze-Koops H, Grunke M. AB0738 Concordance of greyscale and powerdoppler modes in ultrasound assessment of ra: significantly better performance of the dorsal versus palmar approach to mcp and pip joints. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Stein N, Witt M, Baeuerle M, Schulze-Koops H, Gruenke M. THU0400 Inhibition of IL-6 signalling: A novel therapeutic approach for familial mediterranean fever. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Witt M, Mueller F, Nigg A, Reindl C, Schulze-Koops H, Gruenke M. AB1285 Ultrasound of MCP- and PIP-joints in rheumatoid arthritis: Increased value of the dorsal approach compared to the volar approach. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Witt M, Meier J, Proft F, Schulze-Koops H, Grunke M. SAT0535 Diagnosis, Disease Burden and Disease Manifestations of the Sapho Syndrome in Germany: Results from a Nationwide Patient Survey. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Krug J, Laßberg CV, Knoll K, Kerner S, Witt M. Bewegungsregulation bei schnellen Drehbewegungen im Sport – ein methodischer Ansatz. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337174] [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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Szczepaniak M, Loges NT, Olbrich H, Witt M, Omran H. Targeted testing for DNAI1 hot spot-mutation utilizing immunofluorescence microscopy findings. Cilia 2012. [PMCID: PMC3555735 DOI: 10.1186/2046-2530-1-s1-p104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Golden D, Witt M, Rudra S, Nwizu T, Cohen E, Blair E, Stenson K, Vokes E, Haraf D. Outcomes of Induction Chemotherapy and Concurrent Chemoradiation for Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Witt M, Lockhart J. 113 Survivorship After Radiation to the Oral Cavity – Strategies to Promote Adherence to Dental Preservation Recommendations. Eur J Oncol Nurs 2012. [DOI: 10.1016/s1462-3889(12)70125-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Smitka M, Puschmann S, Buschhueter D, Gerber J, Witt M, Honeycutt N, Abolmaali N, Hummel T. Is there a correlation between hippocampus and amygdala volume and olfactory function in healthy subjects? Neuroimage 2012; 59:1052-7. [DOI: 10.1016/j.neuroimage.2011.09.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 08/11/2011] [Accepted: 09/13/2011] [Indexed: 01/18/2023] Open
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