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Wingerson MJ, Schmitz B, Smulligan KL, Walker GA, Magliato S, Wilson JC, Howell DR. Concussion symptom presentation and clinical recovery among pediatric athletes: comparing concussions sustained during school and summer months. Brain Inj 2024:1-9. [PMID: 38511887 DOI: 10.1080/02699052.2024.2332770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE We examined post-concussion symptom presentation, exercise, and sleep among pediatric athletes who sustained concussion during the school year vs. summer months. METHODS We evaluated athletes 6-18 years old within 21-days of concussion. They reported symptoms (Health and Behavior Inventory), with cognitive/somatic domain sub-scores calculated, and indicated if they had exercised or experienced sleep problems since injury. We grouped patients by injury season: summer months (June-August) vs. school year (September-May). RESULTS 350 patients (14.4 ± 2.4 years old; 37% female; initial visit 8.8 ± 5.3 days post-concussion) were seen for care: 24% sustained a concussion during summer months, 76% during the school year. Lower cognitive (median = 7 [IQR = 1, 15] vs. 9.5 [4, 17]; p = 0.01), but not somatic (7 [2.5, 11] vs. 8 [4, 13]; p = 0.06), HBI scores were observed for patients injured during the summer. Groups were similar in proportion exercising (16% vs 17%) and endorsing sleep problems (29% vs 31%). After adjustments, sustaining a concussion during the summer predicted total (β=-3.43; 95%CI = -6.50, -0.36; p = 0.029) and cognitive (β = -2.29; 95%CI = -4.22, -0.36; p = 0.02), but not somatic (β=-1.46; 95%CI = -2.84, -0.08; p = 0.04), symptom severity. CONCLUSION Pediatric patients with concussion may present with greater cognitive symptoms during the school year, compared to summer months.
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Affiliation(s)
- Mathew J Wingerson
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
- Sports Medicine Center, Children's Hospital Colorado Denver, Colorado, USA
| | - Baylie Schmitz
- Doctor of Occupational Therapy Program, Northern Arizona University, Phoenix, Arizona, USA
| | - Katherine L Smulligan
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
- Sports Medicine Center, Children's Hospital Colorado Denver, Colorado, USA
| | - Gregory A Walker
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
- Sports Medicine Center, Children's Hospital Colorado Denver, Colorado, USA
| | - Samantha Magliato
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
| | - Julie C Wilson
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
- Sports Medicine Center, Children's Hospital Colorado Denver, Colorado, USA
- Department of Pediatrics, University of Colorado School of Medicine Denver, Colorado, USA
| | - David R Howell
- Department of Orthopedics, University of Colorado School of Medicine, Denver Colorado, USA
- Sports Medicine Center, Children's Hospital Colorado Denver, Colorado, USA
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Schmitz B, Smulligan KL, Wingerson MJ, Walker GA, Wilson JC, Howell DR. Double Vision and Light Sensitivity Symptoms are Associated With Return-to-School Timing After Pediatric Concussion. Clin J Sport Med 2023; 33:264-269. [PMID: 36395518 DOI: 10.1097/jsm.0000000000001106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/13/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To determine the association between academic time loss postconcussion and vision symptoms/impairments among pediatric patients. DESIGN Cross-sectional. SETTING Sports medicine clinic. PATIENTS Pediatric patients seen for care in a sports medicine clinic between the ages 6 and 18 years (n = 212; mean age = 14.3, SD = 2.4 years; 48% female) were evaluated within 21 days of concussion (mean = 9.8, SD = 5.7 days). INDEPENDENT VARIABLE Patients were grouped based on academic time loss (missed >5 days vs ≤5 days of school) at their initial postconcussion evaluation. OUTCOME MEASURES Patients rated concussion symptoms using the Health and Behavior Inventory (HBI) and underwent near point of convergence (NPC) testing. We compared groups on specific HBI symptom ratings of dizziness, blurry vision, seeing double, and light sensitivity, as well as NPC break and recovery point distances. RESULTS Two hundred twelve patients were included; n = 36 (17%) who reported missing >5 days of school. After adjusting for time since injury, parental education level, mechanism of injury, and preinjury anxiety, patients who reported missing >5 days of school had higher ratings of double vision (β = 0.27; 95% confidence interval [CI], 0.01-0.53; P = 0.04) and light sensitivity (β = 0.506; 95% CI, 0.061-0.951; P = 0.02), but not dizziness (β = 0.390; 95% CI, -0.047 to 0.827; P = 0.08) or blurry vision (β = 0.026; 95% CI, -0.352 to 0.404; P = 0.89). CONCLUSION Missing >5 days of school was associated with worse double vision and light sensitivity symptoms. Given the importance of vision in learning, assessing postconcussion vision symptoms may facilitate a successful return to school. Clinicians should assess a wide spectrum of vision-specific symptoms to ensure appropriate support during the return-to-school process.
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Affiliation(s)
- Baylie Schmitz
- Doctor of Occupational Therapy Program, Northern Arizona University, Phoenix, Arizona
| | - Katherine L Smulligan
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
| | - Mathew J Wingerson
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
- Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado
| | - Gregory A Walker
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
- Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado
| | - Julie C Wilson
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
- Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado
- Department of Pediatrics, University of Colorado School of Medicine, Colorado
| | - David R Howell
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
- Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado
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Schmitz B, Wirtz S, Sestayo-Fernandez M, Schaefer H, Douma ER, Alonso M, Gonzalez-Salvado V, Habibovic M, Kop WJ, Pena-Gil C, Mooren FC. Defining patients needs and expectations for eHealth-based cardiac rehabilitation in Germany and Spain: living lab data from the TIMELY study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
eHealth innovations have set the stage to optimize personalized care and provide assistance for disease control to patients with CAD. TIMELY is the first artificial intelligence (AI)-driven eHealth approach that employs internet of things devices and is based on cardiac rehabilitation (CR) components. To guarantee acceptance and usability of eHealth solutions, patients are actively participating in development through a Living Lab approach.
Purpose
To define patients' needs for an eHealth-based lifestyle intervention and self-care support.
Methods
The Living Lab approach included a guided survey conducted among CAD patients at CR centers in Germany and Spain during inpatient or outpatient CR, respectively. Questions referred to current use of technology and patients' opinion on the usefulness of suggested features of a future eHealth application. Ratings for usefulness/importance were recorded on a 5-point Likert scale reported as median score.
Results
79 patients (20% female) were interviewed (DE, n=49; ES, n=30). Patients' mean age was 57 years (range 37–79), educational level was 87% ≤ high school and 13% > high school. All patients owned a smartphone that they also used for information (76%) and documentation (43%). Patients rated the importance of all CR components (regular exercise, healthy diet, stress management, smoking cessation, risk factor reduction) along the continuum of care as “very high” (5/5). Individual need for regular exercise support after structured CR was rated “high” (4/5). Exercise reminders, suggestions on activities, update of recommended training heart rate, evaluation of training progress, and achieved goals were rated “useful” (4/5) to “very useful” (5/5). The importance of support for diet, stress management, overall risk factor management, and medication was rated 3/5. Usefulness of a learning/education tool was rated 4/5, while motivational messages scored 3/5 and individual feedback of a person or virtual agent scored 4/5 and 3/5, respectively. The availability of electronic health records was evaluated as “very useful” (5/5) remote ECG monitoring and blood pressure management were rated as “useful” (4/5). The range of all items accessed was 1–5, indicating large interindividual differences. No significant differences existed between female and male patients or German and Spanish patients, though the importance of sharing training progress with family/ friends was rated higher by men (3/5) compared to women (1/5) and higher by Spanish (4/5) compared to German patients (2/5).
Conclusions
CR patients expressed a strong need for individual support of regular physical exercise and updated training recommendations. The observed inter-individual differences regarding usefulness and acceptance indicate the need for a highly adaptive system to prevent exclusion from eHealth access. CR patients from Germany and Spain showed equally high acceptance of eHealth components for the management of CAD.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): European Commission Horizon 2020
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Affiliation(s)
- B Schmitz
- University of Witten/Herdecke, Department of Rehabilitation Sciences , Witten , Germany
| | - S Wirtz
- University of Witten/Herdecke, Department of Rehabilitation Sciences , Witten , Germany
| | - M Sestayo-Fernandez
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Department , Santiago de Compostela , Spain
| | - H Schaefer
- University of Witten/Herdecke, Department of Rehabilitation Sciences , Witten , Germany
| | - E R Douma
- Center of Research on Psychology in Somatic diseases at Tilburg University, Department of Medical and Clinical Psychology , Tilburg , The Netherlands
| | - M Alonso
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Department , Santiago de Compostela , Spain
| | - V Gonzalez-Salvado
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Department , Santiago de Compostela , Spain
| | - M Habibovic
- Center of Research on Psychology in Somatic diseases at Tilburg University, Department of Medical and Clinical Psychology , Tilburg , The Netherlands
| | - W J Kop
- Center of Research on Psychology in Somatic diseases at Tilburg University, Department of Medical and Clinical Psychology , Tilburg , The Netherlands
| | - C Pena-Gil
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Department , Santiago de Compostela , Spain
| | - F C Mooren
- University of Witten/Herdecke, Department of Rehabilitation Sciences , Witten , Germany
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Schmitz B, Gatsios D, Peña-Gil C, Juanatey J, Prieto D, Tsakanikas V, Scharnagl H, Habibovic M, Schmidt M, Kleber M, De Bruijn GJ, Malberg H, Mooren F, Widdershoven J, Maerz W, Fotiadis D, Kop W, Bosch J. Patient-centered cardiac rehabilitation by AI-powered lifestyle intervention – the timely approach. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Zimmer M, Scheuren S, Ebert T, Schaumann G, Schmitz B, Hornung J, Bagnoud V, Rödel C, Roth M. Analysis of laser-proton acceleration experiments for development of empirical scaling laws. Phys Rev E 2021; 104:045210. [PMID: 34781535 DOI: 10.1103/physreve.104.045210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Numerous experiments on laser-driven proton acceleration in the MeV range have been performed with a large variety of laser parameters since its discovery around the year 2000. Both experiments and simulations have revealed that protons are accelerated up to a maximum cut-off energy during this process. Several attempts have been made to find a universal model for laser proton acceleration in the target normal sheath acceleration regime. While these models can qualitatively explain most experimental findings, they can hardly be used as predictive models, for example, for the energy cut-off of accelerated protons, as many of the underlying parameters are often unknown. Here we analyze experiments on laser proton acceleration in which scans of laser and target parameters were performed. We derive empirical scaling laws from these parameter scans and combine them in a scaling law for the proton energy cut-off that incorporates the laser pulse energy, the laser pulse duration, the focal spot radius, and the target thickness. Using these scaling laws, we give examples for predicting the proton energy cut-off and conversion efficiency for state-of-the-art laser systems.
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Affiliation(s)
- M Zimmer
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
| | - S Scheuren
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
| | - T Ebert
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
| | - G Schaumann
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
| | - B Schmitz
- Institute for Accelerator Science and Electromagnetic Fields, Technical University of Darmstadt, Schlossgartenstr. 8, 64289 Darmstadt, Germany
| | - J Hornung
- GSI Helmholtz Centre for Heavy Ion Research, Planckstr. 1, 64291 Darmstadt, Germany
- Friedrich-Schiller-Universität Jena, Fürstengraben 1, 07743 Jena, Germany
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
| | - V Bagnoud
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
- GSI Helmholtz Centre for Heavy Ion Research, Planckstr. 1, 64291 Darmstadt, Germany
| | - C Rödel
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
| | - M Roth
- Institute of Nuclear Physics, Technical University of Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
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6
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Ding X, Maudsley A, Sheriff S, Schmitz B, Bronzlik P. Neurometabolic changes in aging human brain observed with whole brain magnetic resonance spectroscopic imaging. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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7
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Dirschka T, Ekanayake-Bohlig S, Dominicus R, Aschoff R, Herrera-Ceballos E, Botella-Estrada R, Hunfeld A, Kremser M, Schmitz B, Lübbert H, Puig S. A randomized, intraindividual, non-inferiority, Phase III study comparing daylight photodynamic therapy with BF-200 ALA gel and MAL cream for the treatment of actinic keratosis. J Eur Acad Dermatol Venereol 2018; 33:288-297. [PMID: 30022544 PMCID: PMC6585804 DOI: 10.1111/jdv.15185] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 07/12/2018] [Indexed: 01/05/2023]
Abstract
Background The most effective treatment modality for actinic keratosis (AK) is photodynamic therapy (PDT). Major obstacles of PDT are the need of a special illumination device and pain accompanying the illumination. These issues may be overcome by replacing an artificial high‐power light source with natural daylight for more extended illumination at lower light doses. Objective To determine whether BF‐200 ALA (a nanoemulsion gel containing 7.8% 5‐aminolaevulinic acid) is non‐inferior to MAL (a cream containing 16% methyl‐aminolaevulinate) in the treatment of mild‐to‐moderate AK with daylight PDT (dPDT). Non‐inferiority of the primary efficacy variable (total lesion clearance rate per patient's side 12 weeks after PDT) is established if the mean response for BF‐200 ALA is no worse than for MAL, within a statistical margin of Δ = −12.5%. Methods The study was performed as an intraindividual comparison with 52 patients in seven centres in Germany and Spain. Each patient received one dPDT. Results include clinical endpoints as well as 1‐year follow‐up results. Results Twelve weeks after a single dPDT, 79.8% of the AK lesions treated with BF‐200 ALA gel and 76.5% of the lesions treated with MAL cream were completely cleared. The median of differences was 0.0 with a one‐sided 97.5% CI of 0.0, establishing non‐inferiority (P < 0.0001). Results for secondary efficacy parameters were in line with the primary outcome. Recurrence rates 1 year after the treatment were 19.9% for lesions treated with BF‐200 ALA and 31.6% for lesions treated with MAL. Adverse reactions including pain were mostly mild and transient and identical to those previously described for dPDT. Conclusion Daylight PDT of AK with BF‐200 ALA is well‐tolerated and non‐inferior to MAL/dPDT. The study demonstrates a trend towards higher efficacies after 3 months and significantly lower recurrence rates after 1 year follow‐up.
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Affiliation(s)
- T Dirschka
- CentroDerm GmbH, Wuppertal, Germany.,Faculty of Health, University Witten/Herdecke, Witten, Germany
| | | | | | - R Aschoff
- Department of Dermatology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - E Herrera-Ceballos
- Department of Dermatology, Hospital Clinico Virgen de la Victoria, Malaga, Spain
| | - R Botella-Estrada
- University of Valencia, Valencia, Spain.,Department of Dermatology, Hospital Universitari i Politécnic la Fe, Valencia, Spain
| | - A Hunfeld
- Biofrontera Bioscience GmbH, Leverkusen, Germany
| | - M Kremser
- Biofrontera Bioscience GmbH, Leverkusen, Germany
| | - B Schmitz
- Biofrontera Bioscience GmbH, Leverkusen, Germany
| | - H Lübbert
- Biofrontera Bioscience GmbH, Leverkusen, Germany
| | - S Puig
- Hospital Clinic de Barcelona, Barcelona, Spain.,University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Barcelona, Spain
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8
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Christensen A, Andersen CB, Svendsen JH, Bundgaard HB, Brand SM, Schmitz B. P3819Rare non-coding desmoglein-2 variant contributes to arrhythmogenic right ventricular cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Christensen
- Herlev Hospital - Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - C B Andersen
- Rigshospitalet - Copenhagen University Hospital, Copenhagen, Denmark
| | - J H Svendsen
- Rigshospitalet - Copenhagen University Hospital, Heart Centre, Department of Cardiology, Copenhagen, Denmark
| | - H B Bundgaard
- Rigshospitalet - Copenhagen University Hospital, Heart Centre, Department of Cardiology, Copenhagen, Denmark
| | - S M Brand
- University Hospital of Munster, Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease, Munster, Germany
| | - B Schmitz
- University Hospital of Munster, Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease, Munster, Germany
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9
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Morton C, Dominicus R, Radny P, Dirschka T, Hauschild A, Reinhold U, Aschoff R, Ulrich M, Keohane S, Ekanayake-Bohlig S, Ibbotson S, Ostendorf R, Berking C, Gröne D, Schulze H, Ockenfels H, Jasnoch V, Kurzen H, Sebastian M, Stege H, Staubach P, Gupta G, Hübinger F, Ziabreva I, Schmitz B, Gertzmann A, Lübbert H, Szeimies RM. A randomized, multinational, noninferiority, phase III trial to evaluate the safety and efficacy of BF-200 aminolaevulinic acid gel vs. methyl aminolaevulinate cream in the treatment of nonaggressive basal cell carcinoma with photodynamic therapy. Br J Dermatol 2018; 179:309-319. [DOI: 10.1111/bjd.16441] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2018] [Indexed: 01/26/2023]
Affiliation(s)
- C.A. Morton
- Dermatology Department; Stirling Community Hospital; NHS Forth Valley; Stirling U.K
| | | | - P. Radny
- Private Dermatological Practice; Friedrichshafen Germany
| | - T. Dirschka
- CentroDerm GmbH, Wuppertal, and Faculty of Health; University Witten/Herdecke; Witten Germany
| | - A. Hauschild
- Dermatologikum Kiel and Department of Dermatology; University Hospital Schleswig-Holstein (UKSH); Kiel Germany
| | | | - R. Aschoff
- Department of Dermatology; University Hospital Carl Gustav Carus; Technical University Dresden; Dresden Germany
| | - M. Ulrich
- CMB Collegium Medicum Berlin GmbH; Berlin Germany
| | - S. Keohane
- St Mary's Hospital; Portsmouth Dermatology Centre; NHS Trust; Portsmouth U.K
| | | | - S. Ibbotson
- Photobiology Unit; University of Dundee; Ninewells Hospital and Medical School; Dundee U.K
| | | | - C. Berking
- Department of Dermatology and Allergology; University Hospital Munich; Munich Germany
| | - D. Gröne
- Dermatological Private Practice; Clinical Research and Laser Medicine; Berlin Germany
| | - H.J. Schulze
- Specialist Hospital Hornheide; Department of Dermatology; Münster Germany
| | - H.M. Ockenfels
- Dermatology and Allergology Practice at the Clinical Centre Hanau; Hanau Germany
| | - V. Jasnoch
- Centre for Dermatology Vechta; Vechta Germany
| | | | | | - H. Stege
- Department of Dermatology; Clinical Centre Lippe GmbH Detmold; Detmold Germany
| | - P. Staubach
- Department of Dermatology; University Hospital Johannes Gutenberg University Mainz; Clinical Research Center; Mainz Germany
| | - G. Gupta
- Monklands Hospital; NHS Lanarkshire; Airdrie and University of Glasgow; Glasgow U.K
| | | | | | - B. Schmitz
- Biofrontera Bioscience GmbH; Leverkusen Germany
| | | | - H. Lübbert
- Biofrontera Bioscience GmbH; Leverkusen Germany
| | - R.-M. Szeimies
- Department of Dermatology and Allergology; Vest Clinic; Recklinghausen Germany
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10
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Abstract
A scalable mapping system for superconducting RF (SRF) cavities is presented. Currently, it combines local temperature measurement with 3D magnetic field mapping along the outer surface of the resonator. This allows for the observation of dynamic effects that have an impact on the superconducting properties of a cavity, such as the normal to superconducting phase transition or a quench. The system was developed for a single cell 1.3 GHz TESLA-type cavity, but can be easily adopted to arbitrary other cavity types. A data acquisition rate of 500 Hz for all channels simultaneously (i.e., 2 ms acquisition time for a complete map) and a magnetic field resolution of currently up to 14 mA/m/μ0 = 17 nT have been implemented. While temperature mapping is a well known technique in SRF research, the integration of magnetic field mapping opens the possibility of detailed studies of trapped magnetic flux and its impact on the surface resistance. It is shown that magnetic field sensors based on the anisotropic magnetoresistance effect can be used in the cryogenic environment with improved sensitivity compared to room temperature. Furthermore, examples of first successful combined temperature and magnetic-field maps are presented.
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Affiliation(s)
- B Schmitz
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - J Köszegi
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - K Alomari
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - O Kugeler
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - J Knobloch
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
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11
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Lenders M, Oder D, Nowak A, Canaan-Kühl S, Arash-Kaps L, Drechsler C, Schmitz B, Nordbeck P, Hennermann JB, Kampmann C, Reuter S, Brand SM, Wanner C, Brand E. Impact of immunosuppressive therapy on therapy-neutralizing antibodies in transplanted patients with Fabry disease. J Intern Med 2017; 282:241-253. [PMID: 28682471 DOI: 10.1111/joim.12647] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Inhibitory antibodies towards enzyme replacement therapy (ERT) are associated with disease progression and poor outcome in affected male patients with lysosomal disorders such as Fabry disease (FD). However, little is known about the impact of immunosuppressive therapy on ERT inhibition in these patients with FD. METHODS In this retrospective study, we investigated the effect of long-term immunosuppression on ERT inhibition in male patients with FD (n = 26) receiving immunosuppressive therapy due to kidney (n = 24) or heart (n = 2) transplantation. RESULTS No ERT-naïve transplanted patient (n = 8) developed antibodies within follow-up (80 ±72 months) after ERT initiation. Seven (26.9%) patients were tested ERT inhibition positive prior to transplantation. No de novo ERT inhibition was observed after transplantation (n = 18). In patients treated with high dosages of immunosuppressive medication such as prednisolone, tacrolimus and mycophenolate-mofetil/mycophenolate acid, ERT inhibition decreased after transplantation (n = 12; P = 0.0160). Tapering of immunosuppression (especially prednisolone) seemed to re-increase ERT inhibition (n = 4, median [range]: 16.6 [6.9; 36.9] %; P = 0.0972) over time. One ERT inhibition-positive patient required interventions with steroid therapy and increased doses of tacrolimus, which also lowered ERT inhibition. CONCLUSION We conclude that the immunosuppressive maintenance therapy after transplantations seems to be sufficient to prevent de novo ERT inhibition in ERT-naïve patients. Intensified high dosages of immunosuppressive drugs are associated with decreased antibody titres and decreased ERT inhibition in affected patients, but did not result in long-term protection. Future studies are needed to establish ERT inhibition-specific immunosuppressive protocols with long-term modulating properties to warrant an improved disease course in ERT inhibition-positive males.
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Affiliation(s)
- M Lenders
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
| | - D Oder
- Department of Internal Medicine I, Divisions of Cardiology and Nephrology, Comprehensive Heart Failure Center (CHFC), Fabry Center for Interdisciplinary Therapy (FAZIT), University of Wuerzburg, Wuerzburg, Germany
| | - A Nowak
- Department of Internal Medicine, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - S Canaan-Kühl
- Department of Medicine, Division of Nephrology, Campus Virchow-Klinikum, University Hospital Charité, Berlin, Germany
| | - L Arash-Kaps
- Villa Metabolica, Department for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - C Drechsler
- Department of Internal Medicine I, Divisions of Cardiology and Nephrology, Comprehensive Heart Failure Center (CHFC), Fabry Center for Interdisciplinary Therapy (FAZIT), University of Wuerzburg, Wuerzburg, Germany
| | - B Schmitz
- Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease, University Hospital Muenster, Muenster, Germany
| | - P Nordbeck
- Department of Internal Medicine I, Divisions of Cardiology and Nephrology, Comprehensive Heart Failure Center (CHFC), Fabry Center for Interdisciplinary Therapy (FAZIT), University of Wuerzburg, Wuerzburg, Germany
| | - J B Hennermann
- Villa Metabolica, Department for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - C Kampmann
- Villa Metabolica, Department for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - S Reuter
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
| | - S-M Brand
- Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease, University Hospital Muenster, Muenster, Germany
| | - C Wanner
- Department of Internal Medicine I, Divisions of Cardiology and Nephrology, Comprehensive Heart Failure Center (CHFC), Fabry Center for Interdisciplinary Therapy (FAZIT), University of Wuerzburg, Wuerzburg, Germany
| | - E Brand
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
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12
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Rotter N, Schmitz B, Sommer F, Röhrer S, Schuler PJ, Bischof F, Scheithauer MO, Hoffmann TK. First use of flat-panel computed tomography during cochlear implant surgery : Perspectives for the use of advanced therapies in cochlear implantation. HNO 2017; 65:61-65. [PMID: 27534759 DOI: 10.1007/s00106-016-0213-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Cochlear implantation in routine cases with normal anatomy is commonly performed without intraoperative image guidance. Revision cochlear implantation as well as surgery in malformations require not only a precise understanding of the underlying complex anatomy, but surgeons need to transform two-dimensional computed tomography (2D CT) scans into the surgical field and use this information for intraoperative surgical navigation. So far, information about the exact position of the electrode during insertion cannot be provided to the surgeon. Here, we present our first operative experience with cochlear implant surgery supported by intraoperative Dyna-CT technology, providing the surgeon with detailed views of the electrode location. METHODS To prove the feasibility of the procedure, two cases of cochlear implantation were performed with intraoperative application of cone-beam CT acquired by a C-arm Dyna-CT system (Artis Zeego, Siemens Healthcare, Erlangen, Germany). Image reconstruction was performed intraoperatively in order to assess the correct positioning of the electrodes. RESULTS Intraoperative Dyna-CT enabled clear visualization of the surgical anatomy and intracochlear electrode position. Dyna-CT technology can be applied with acceptable additional time requirements without adding too much complexity to the surgical procedure. CONCLUSION Intraoperative data acquisition by Dyna-CT represents a suitable option for online surgical navigation during cochlear implant surgery. This imaging technology will push further advances in cochlear implant surgery and lateral skull base surgery, particularly if linked to intraoperative navigation.
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Affiliation(s)
- N Rotter
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany.
| | - B Schmitz
- Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Ulm, Germany
| | - F Sommer
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany
| | - S Röhrer
- Department of Neurosurgery, Ulm University Medical Center, Ulm, Germany
| | - P J Schuler
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany
| | - F Bischof
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany
| | - M O Scheithauer
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany
| | - T K Hoffmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075, Ulm, Germany
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13
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Woischneck D, Schmitz B, Kapapa T. MRI detection of cerebral lesions in post-traumatic anisocoria: specificity and prognostic significance. Clin Radiol 2017; 72:426.e7-426.e15. [DOI: 10.1016/j.crad.2016.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 10/21/2016] [Accepted: 11/17/2016] [Indexed: 10/20/2022]
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14
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Kumar CMN, Xiao Y, Nair HS, Voigt J, Schmitz B, Chatterji T, Jalarvo NH, Brückel T. Hyperfine and crystal field interactions in multiferroic HoCrO3. J Phys Condens Matter 2016; 28:476001. [PMID: 27633731 DOI: 10.1088/0953-8984/28/47/476001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a comprehensive specific heat and inelastic neutron scattering study to explore the possible origin of multiferroicity in HoCrO3. We have performed specific heat measurements in the temperature range 100 mK-290 K and inelastic neutron scattering measurements were performed in the temperature range 1.5-200 K. From the specific heat data we determined hyperfine splitting at 22.5(2) μeV and crystal field transitions at 1.379(5) meV, 10.37(4) meV, 15.49(9) meV and 23.44(9) meV, indicating the existence of strong hyperfine and crystal field interactions in HoCrO3. Further, an effective hyperfine field is determined to be 600(3) T. The quasielastic scattering observed in the inelastic scattering data and a large linear term [Formula: see text] mJ mol(-1) K(-2) in the specific heat is attributed to the presence of short range exchange interactions, which is understood to be contributing to the observed ferroelectricity. Further the nuclear and magnetic entropies were computed to be, ∼17.2 Jmol(-1) K(-1) and ∼34 Jmol(-1) K(-1), respectively. The entropy values are in excellent agreement with the limiting theoretical values. An anomaly is observed in the peak position of the temperature dependent crystal field spectra around 60 K, at the same temperature an anomaly in the pyroelectric current is reported. From this we could elucidate a direct correlation between the crystal electric field excitations of Ho(3+) and ferroelectricity in HoCrO3. Our present study, along with recent reports, confirm that HoCrO3, and RCrO3 (R = rare earth) in general, possess more than one driving force for the ferroelectricity and multiferroicity.
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Affiliation(s)
- C M N Kumar
- Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich, 52425 Jülich, Germany. Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at SNS, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. Chemical and Engineering Materials Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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15
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Schmitz B, Thorwesten L, Lenders M, Duning T, Stypmann J, Brand E, Brand SM. Physical Exercise in Patients with Fabry Disease - a Pilot Study. Int J Sports Med 2016; 37:1066-1072. [PMID: 27676143 DOI: 10.1055/s-0042-110205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of this study was to assess the extent of exercise intolerance in Fabry disease (FD) patients and to report individual effects of physical exercise. Exercise capacity and strength of 14 patients (mean age 46 years, 6 females) were determined using cycle ergometry and isokinetic measurements. Patients performed a strength/circuit exercise training protocol for 12 months. The mean relative maximum performance of the group was low at baseline and increased by 12.1% (baseline: 1.9 [0.9-3.4] W·kg-1vs. re-test: 2.1 [1.1-3.8] W·kg-1; p=0.035) during the study. Patients' mean baseline maximum performance blood lactate of 5.4 [1.3-9.9] mmol·L-1 increased to a mean of 7.2 (2.4-10.2) mmol·L-1 (p=0.038). Mean strength of the lower limbs (left/right extensors and flexors, total work of 5 sets) changed from 2269 (1017-2913) kg·m2·s - 2 to 2325 (1359-3107) kg·m2·s-2 (not significant). Patients reported increased well-being, daily activity and reduced fatigue during the study. Our results indicate that exercise intolerance in FD patients often results from physical inactivity. FD patients may perform exercise training to improve exercise capacity and muscle strength. Future studies will address the clinical benefits of exercise in FD.
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Affiliation(s)
- B Schmitz
- Institute of Sports Medicine, University Hospital Muenster, Muenster, Germany
| | - L Thorwesten
- Institute of Sports Medicine, University Hospital Muenster, Muenster, Germany
| | - M Lenders
- Department of Nephrology, Hypertension and Rheumatology, Internal Medicine D, University Hospital Muenster, Muenster, Germany
| | - T Duning
- Department of Neurology, University Hospital Muenster, Muenster, Germany
| | - J Stypmann
- Department of Cardiovascular Medicine, Division of Cardiology, University Hospital Muenster, Muenster, Germany
| | - E Brand
- Department of Nephrology, Hypertension and Rheumatology, Internal Medicine D, University Hospital Muenster, Muenster, Germany
| | - S-M Brand
- Institute of Sports Medicine, University Hospital Muenster, Muenster, Germany
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16
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Reinhold U, Dirschka T, Ostendorf R, Aschoff R, Berking C, Philipp‐Dormston W, Hahn S, Lau K, Jäger A, Schmitz B, Lübbert H, Szeimies R. A randomized, double‐blind, phase
III
, multicentre study to evaluate the safety and efficacy of
BF
‐200
ALA
(Ameluz
®
) vs. placebo in the field‐directed treatment of mild‐to‐moderate actinic keratosis with photodynamic therapy (PDT) when using the
BF
‐Rhodo
LED
®
lamp. Br J Dermatol 2016; 175:696-705. [DOI: 10.1111/bjd.14498] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2016] [Indexed: 11/26/2022]
Affiliation(s)
- U. Reinhold
- Dermatological Center Bonn Friedensplatz Bonn Germany
| | - T. Dirschka
- Private Practice Wuppertal‐Barmen Germany
- Faculty of Health University Witten/Herdecke Witten Germany
| | | | - R. Aschoff
- Department of Dermatology University Hospital Carl Gustav Carus Technical University Dresden Dresden Germany
| | - C. Berking
- Department of Dermatology and Allergology University Hospital Munich Germany
| | | | - S. Hahn
- Accovion GmbH Eschborn Germany
| | - K. Lau
- Accovion GmbH Eschborn Germany
| | - A. Jäger
- Biofrontera Bioscience GmbH Leverkusen Germany
| | - B. Schmitz
- Biofrontera Bioscience GmbH Leverkusen Germany
| | - H. Lübbert
- Biofrontera Bioscience GmbH Leverkusen Germany
| | - R.‐M. Szeimies
- Department of Dermatology and Allergology Vest Clinic Recklinghausen Germany
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17
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Schmitz B, Yin QZ, Sanborn ME, Tassinari M, Caplan CE, Huss GR. A new type of solar-system material recovered from Ordovician marine limestone. Nat Commun 2016; 7:ncomms11851. [PMID: 27299793 PMCID: PMC4911632 DOI: 10.1038/ncomms11851] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/05/2016] [Indexed: 11/08/2022] Open
Abstract
From mid-Ordovician ∼470 Myr-old limestone >100 fossil L-chondritic meteorites have been recovered, representing the markedly enhanced flux of meteorites to Earth following the breakup of the L-chondrite parent body. Recently one anomalous meteorite, Österplana 065 (Öst 65), was found in the same beds that yield L chondrites. The cosmic-ray exposure age of Öst 65 shows that it may be a fragment of the impactor that broke up the L-chondrite parent body. Here we show that in a chromium versus oxygen-isotope plot Öst 65 falls outside all fields encompassing the known meteorite types. This may be the first documented example of an 'extinct' meteorite, that is, a meteorite type that does not fall on Earth today because its parent body has been consumed by collisions. The meteorites found on Earth today apparently do not give a full representation of the kind of bodies in the asteroid belt ∼500 Myr ago.
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Affiliation(s)
- B. Schmitz
- Astrogeobiology Laboratory, Department of Physics, Lund University, 221 00 Lund, Sweden
- Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, Hawaii 96822, USA
| | - Q. -Z. Yin
- Department of Earth and Planetary Sciences, University of California at Davis, Davis, California 95616, USA
| | - M. E. Sanborn
- Department of Earth and Planetary Sciences, University of California at Davis, Davis, California 95616, USA
| | - M. Tassinari
- Astrogeobiology Laboratory, Department of Physics, Lund University, 221 00 Lund, Sweden
| | - C. E. Caplan
- Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, Hawaii 96822, USA
| | - G. R. Huss
- Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, Hawaii 96822, USA
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18
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Billich C, Huber S, Schmitz B. [CT and MRI changes in the basal ganglia non-ketoacidosis hyperglycemic hemichorea-hemiballism syndrome]. ROFO-FORTSCHR RONTG 2015; 187:1128-30. [PMID: 26333106 DOI: 10.1055/s-0035-1553145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Abstract
Magnetic resonance imaging (MRI) plays a very important role in the diagnosis of musculoskeletal conditions; its importance in orthopedic trauma continues to grow. To ensure optimal imaging and to be able to answer all clinically relevant questions, some prerequisites must be taken into account. Of uttermost importance is a functioning communication between surgeons and radiologists. To adapt the best sequences, the radiologist needs to know all suspected injuries and the mechanism of trauma. Second, the surgeon must have basic knowledge regarding this technology to optimally use all its possibilities. The aim of this article is to familiarize the reader with basic MRI in traumatology focusing on weightings and sequences.
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Affiliation(s)
- B Ammann
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland,
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20
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May TW, Pfäfflin M, Brandt C, Füratsch N, Schmitz B, Wandschneider B, Kretz R, Runge U, Geithner J, Karakizlis H, Rosenow F, Kerling F, Stefan H. Epilepsy in the elderly: restrictions, fears, and quality of life. Acta Neurol Scand 2015; 131:176-86. [PMID: 25312985 DOI: 10.1111/ane.12317] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2014] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Due to demographic change and high incidence of epilepsy in elderly, the number of elderly with epilepsies is increasing. However, only few studies investigated the impact of epilepsy on quality of life (QoL). We investigated how epilepsy affects different aspects of QoL dependent on the age of the patients and the age of onset of epilepsy. MATERIALS AND METHODS In a multicenter, cross-sectional study, three patient groups were recruited from five centers: Group A1: 45 elderly (≥65 years.) with late onset of epilepsy (≥65 years), group A2: 51 elderly (≥65 years.) with early-onset, long-lasting epilepsy (≤50 years), group B: 41 young adults (≤50 years) with epilepsy. Statistical analysis of differences between groups was performed using generalized linear models. RESULTS Elderly with late-onset epilepsy (group A1) had a significantly lower seizure frequency, were treated with less anti-epileptic drugs (AEDs), and reported a better tolerability of AED treatment, but had more comorbidities compared with groups A2 and B. After adjusting for seizure frequency, tolerability of AEDs and comorbidity, young adults (group B) reported the highest overall QoL, whereas patients of group A1 and A2 did not differ significantly. Epilepsy-related fears, especially fears of stigmatization, were significantly higher in elderly with long-lasting epilepsy compared with groups A1 and B. CONCLUSION Seizure-related variables, tolerability of AEDs and comorbidity have a stronger impact on QoL and on restrictions due to epilepsy than age, age at onset of epilepsy or duration of epilepsy. However, some results indicate group-specific patterns of impairment and epilepsy-related fears.
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Affiliation(s)
- T. W. May
- Epilepsy Center Bethel; Society for Epilepsy Research; Bielefeld Germany
| | - M. Pfäfflin
- Epilepsy Center Bethel; Society for Epilepsy Research; Bielefeld Germany
| | - C. Brandt
- Epilepsy Center Bethel; Society for Epilepsy Research; Bielefeld Germany
| | - N. Füratsch
- Epilepsy Center Berlin-Brandenburg; Berlin Germany
| | - B. Schmitz
- Vivantes Humboldt-Klinikum; Berlin Germany
| | | | - R. Kretz
- Charité; Neurological Clinic; Berlin Germany
| | - U. Runge
- Neurological Clinic; University Hospital Greifswald; Greifswald Germany
| | - J. Geithner
- Neurological Clinic; University Hospital Greifswald; Greifswald Germany
| | - H. Karakizlis
- Epilepsy Center; Neurological Clinic; University Hospital Marburg; Marburg Germany
| | - F. Rosenow
- Epilepsy Center; Neurological Clinic; University Hospital Marburg; Marburg Germany
| | - F. Kerling
- Department of Neurology; Rummelsberg Hospital; Schwarzenbruck Germany
| | - H. Stefan
- Neurological Clinic; University Hospital Erlangen; Erlangen Germany
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21
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Lenders M, Karabul N, Duning T, Schmitz B, Schelleckes M, Mesters R, Hense HW, Beck M, Brand SM, Brand E. Thromboembolic events in Fabry disease and the impact of factor V Leiden. Neurology 2015; 84:1009-16. [DOI: 10.1212/wnl.0000000000001333] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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22
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Bengner M, Schmitz B. Epilepsie und Schwangerschaft. Akt Neurol 2014. [DOI: 10.1055/s-0034-1387345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M. Bengner
- Vivantes Humboldt-Klinikum, Neurologie, Berlin
| | - B. Schmitz
- Vivantes Humboldt-Klinikum, Neurologie, Berlin
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23
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Egelhaaf A, Cölln K, Schmitz B, Buck M, Wink M, Schneider D. Organ Specific Storage of Dietary Pyrrolizidine Alkaloids in the Arctiid Moth Creatonotos transiens. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znc-1990-1-220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Larvae of the arctiid moth Creatonotos transiens obtained each 5 mg of heliotrine, a pyrrolizidine alkaloid, via an artificial diet. 7 S-H eliotrine is converted into its enantiomer, 7 R1-heliotrine, and some minor metabolites, such as callimorphine. 7 S- and 7 R-heliotrine are present in the insect predominantly (more than 97%) as their N-oxides. The distribution of heliotrine in the organs and tissues of larvae, prepupae, pupae and imagines was analyzed by capillary gas-liquid chromatography. A large proportion of the alkaloid is stored in the integument of all developmental stages, where it probably serves as a chemical defence compound against predators. Female imagines had transferred substantial amounts of heliotrine to their ovaries and subsequently to their eggs; males partly directed it to their pheromone biosynthesis.
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Affiliation(s)
- A. Egelhaaf
- Zoologisches Institut der Universität, Im Weyertal 119, D-5000 Köln 41, Bundesrepublik Deutschland
| | - K. Cölln
- Zoologisches Institut der Universität, Im Weyertal 119, D-5000 Köln 41, Bundesrepublik Deutschland
| | - B. Schmitz
- Zoologisches Institut der Universität, Im Weyertal 119, D-5000 Köln 41, Bundesrepublik Deutschland
| | - M. Buck
- Zoologisches Institut der Universität, Im Weyertal 119, D-5000 Köln 41, Bundesrepublik Deutschland
| | - M. Wink
- Pharmazeutisches Institut der Universität, Saarstraße 21, D-6500 Mainz, Bundesrepublik Deutschland
- Institut für Pharmazeutische Biologie, Universität Heidelberg, Im Neuenheimer Feld 364, D-6900 Heidelberg, Bundesrepublik Deutschland
| | - D. Schneider
- Max-Planck-Institut für Verhaltensphysiologie, D-8130 Seewiesen/Starnberg, Bundesrepublik Deutschland
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24
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Stefan H, May TW, Pfäfflin M, Brandt C, Füratsch N, Schmitz B, Wandschneider B, Kretz R, Runge U, Geithner J, Karakizlis C, Rosenow F, Kerling F. Epilepsy in the elderly: comparing clinical characteristics with younger patients. Acta Neurol Scand 2014; 129:283-93. [PMID: 24495079 DOI: 10.1111/ane.12218] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2013] [Indexed: 10/25/2022]
Abstract
The prevalence and incidence of epilepsies in elderly is high. Due to demographic development, the portion of elderly patients with epilepsy will continue to rise over the next decades. In this study, we aimed to investigate seizure semiology, etiology, comorbidity, and therapy in elderly patients dependent on onset of epilepsy and in comparison with younger patients. In a prospective multicentre study, 202 epilepsy patients were included in a consecutive manner and subdivided into three groups (group A1: >65 years, onset of epilepsy after the age of 65 years; group A2: >65 years with early onset epilepsy, seizure onset before the age of 50 years; and group B: <50 years with epilepsy). Clinical data with respect to epilepsy, seizures, comorbidity, etiology, and anti-epileptic drug (AED) therapy were assessed using a questionnaire developed especially for these patient groups and filled out by the physicians. The clinical profile with regard to etiology, postictal conditions, and comorbidities clearly depends on the age of the patients and age of onset of epilepsy. Patients with an epilepsy onset after 65 years need lower doses of AEDs, gain better seizure control and have more concomitant diseases than younger patients or elderly epilepsy patients with early-onset epilepsy.
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Affiliation(s)
- H. Stefan
- Neurological Clinic; University Hospital Erlangen; Erlangen Germany
| | - T. W. May
- Epilepsy Center Bethel; Bielefeld Germany
| | | | - C. Brandt
- Epilepsy Center Bethel; Bielefeld Germany
| | - N. Füratsch
- Epilepsy Center Berlin-Brandenburg; Berlin Germany
| | - B. Schmitz
- Vivantes Humboldt-Klinikum; Berlin Germany
| | | | - R. Kretz
- Charité; Neurological Clinic; Berlin Germany
| | - U. Runge
- Epilepsy Center; Neurological Clinic; University Hospital Greifswald; Greifswald Germany
| | - J. Geithner
- Epilepsy Center; Neurological Clinic; University Hospital Greifswald; Greifswald Germany
| | - C. Karakizlis
- Epilepsy Center; Neurological Clinic; University Hospital Marburg; Marburg Germany
| | - F. Rosenow
- Epilepsy Center; Neurological Clinic; University Hospital Marburg; Marburg Germany
| | - F. Kerling
- Department of Neurology; Rummelsberg Hospital; Schwarzenbruck Germany
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25
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Dirschka T, Radny P, Dominicus R, Mensing H, Brüning H, Jenne L, Karl L, Sebastian M, Oster-Schmidt C, Klövekorn W, Reinhold U, Tanner M, Gröne D, Deichmann M, Simon M, Hübinger F, Hofbauer G, Krähn-Senftleben G, Borrosch F, Reich K, Berking C, Wolf P, Lehmann P, Moers-Carpi M, Hönigsmann H, Wernicke-Panten K, Hahn S, Pabst G, Voss D, Foguet M, Schmitz B, Lübbert H, Szeimies RM. Long-term (6 and 12 months) follow-up of two prospective, randomized, controlled phase III trials of photodynamic therapy with BF-200 ALA and methyl aminolaevulinate for the treatment of actinic keratosis. Br J Dermatol 2013; 168:825-36. [PMID: 23252768 PMCID: PMC3660784 DOI: 10.1111/bjd.12158] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Two phase III trials of photodynamic therapy (PDT) with BF-200 ALA, a recently approved nanoemulsion formulation of 5-aminolaevulinic acid (ALA) demonstrated high clearance rates in mild-to-moderate actinic keratosis (AK). The comparison to a registered methyl aminolaevulinate (MAL) cream demonstrated significantly superior total patient clearance rates. Objectives To evaluate long-term efficacy and safety of PDT for AK 6 and 12 months after the last PDT with BF-200 ALA, MAL or placebo. Methods The follow-up phase (FUP) was performed with patients of two phase III studies. Both studies compared BF-200 ALA with placebo, one of the studies additionally with MAL. Overall recurrence rates and various subgroups (light source, lesion severity, lesion location, complete responders after first PDT) were assessed 6 and 12 months after the last PDT. Results Recurrence rates were similar for BF-200 ALA and MAL, with a tendency to lower recurrence rates for BF-200 ALA. The proportion of patients who were fully cleared during PDT and remained completely clear for at least 12 months after PDT were 47% for BF-200 ALA (both studies) and 36% for MAL treatment. The subgroup that was illuminated with narrow wavelength LED lamps reached 69% and 53% for BF-200 ALA (both studies, respectively) and 41% for MAL. No safety concerns were reported. Conclusions The FUP data confirmed the high efficacy and safety of PDT with BF-200 ALA. The slightly lower recurrence rates after BF-200 ALA treatment compared with MAL treatment enhanced the better treatment outcome due to the significantly superior efficacy.
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Affiliation(s)
- T Dirschka
- Private Dermatological Practice Centre, Wuppertal, Germany
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Calteux N, Schmid N, Hellers J, Kumpan S, Schmitz B. [Neonatal cleft lip repair: perioperative safety and surgical outcomes]. ANN CHIR PLAST ESTH 2013; 58:638-43. [PMID: 23623629 DOI: 10.1016/j.anplas.2013.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 03/18/2013] [Indexed: 11/26/2022]
Abstract
INTRODUCTION There is no international consensus on timing for surgical repair of cleft lip and palate. We argue that neonatal timing for repair of the lip deformity allows a better integration of the baby in his family and is of major support for the parents. Recent studies tend to challenge this neonatal practice. PATIENTS AND METHODS We want to study retrospectively the perioperative safety and the surgical outcomes of this procedure over the past 20 years in a series of 42 non-selected babies who had labial repair during the first four weeks of their life. All of them have been operated by the same senior surgeon. RESULTS Median operative time is 45 minutes for unilateral cleft and 70 minutes in case of bilateral malformation. Oral feeding is initiated at the end of the operative day. Children's hospital stay is four days. The results show no anaesthetic complication. Four children had secondary lip correction. CONCLUSION The risk of anaesthetic and surgical interventions limited to the lip before the age of 28 days is very low in a medical care environment specialized in neonatal surgery and postoperative care. The over all complication rate is very low.
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Affiliation(s)
- N Calteux
- Service de chirurgie plastique reconstructrice et esthétique, centre hospitalier de Luxembourg, 4, rue E. Barblé, L-1210 Luxembourg, Grand-Duché de Luxembourg.
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Schulten R, Novak B, Schmitz B, Lübbert H. Comparison of the uptake of 5-aminolevulinic acid and its methyl ester in keratinocytes and skin. Naunyn Schmiedebergs Arch Pharmacol 2012; 385:969-79. [DOI: 10.1007/s00210-012-0777-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 06/23/2012] [Indexed: 02/07/2023]
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Dirschka T, Radny P, Dominicus R, Mensing H, Brüning H, Jenne L, Karl L, Sebastian M, Oster-Schmidt C, Klövekorn W, Reinhold U, Tanner M, Gröne D, Deichmann M, Simon M, Hübinger F, Hofbauer G, Krähn-Senftleben G, Borrosch F, Reich K, Berking C, Wolf P, Lehmann P, Moers-Carpi M, Hönigsmann H, Wernicke-Panten K, Helwig C, Foguet M, Schmitz B, Lübbert H, Szeimies RM. Photodynamic therapy with BF-200 ALA for the treatment of actinic keratosis: results of a multicentre, randomized, observer-blind phase III study in comparison with a registered methyl-5-aminolaevulinate cream and placebo. Br J Dermatol 2011; 166:137-46. [PMID: 21910711 DOI: 10.1111/j.1365-2133.2011.10613.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) with 5-aminolaevulinic acid (ALA) or its methylester [methyl-5-aminolaevulinate (MAL) or 5-amino-4-oxopentanoate] was recently ranked as first-line therapy for the treatment of actinic keratosis (AK) and is an accepted therapeutic option for the treatment of neoplastic skin diseases. BF-200 ALA (Biofrontera Bioscience GmbH, Leverkusen, Germany) is a gel formulation of ALA with nanoemulsion for the treatment of AK which overcomes previous problems of ALA instability and improves skin penetration. OBJECTIVES To evaluate the efficacy and safety of PDT of AKs with BF-200 ALA in comparison with a registered MAL cream and with placebo. METHODS The study was performed as a randomized, multicentre, observer-blind, placebo-controlled, interindividual trial with BF-200 ALA, a registered MAL cream and placebo in a ratio of 3:3:1. Six hundred patients, each with four to eight mild to moderate AK lesions on the face and/or the bald scalp, were enrolled in 26 study centres in Germany, Austria and Switzerland. Patients received one PDT. If residual lesions remained at 3months after treatment, PDT was repeated. RESULTS PDT with BF-200 ALA was superior to placebo PDT with respect to patient complete clearance rate (78·2% vs. 17·1%; P<0·0001) and lesion complete clearance rate (90·4% vs. 37·1%) at 3months after the last PDT. Moreover, superiority was demonstrated over the MAL cream regarding the primary endpoint patient complete clearance (78·2% vs. 64·2%; P<0·05). Significant differences in the patient and lesion complete clearance rates and severity of treatment-related adverse events were observed for the narrow- and broad-spectrum light sources. CONCLUSIONS BF-200 ALA is a very effective, well-tolerated new formulation for AK treatment with PDT and is superior to a registered MAL medication. Efficacies and adverse events vary greatly with the different light sources used.
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Affiliation(s)
- T Dirschka
- Private Dermatological Practice Centre, Wuppertal, Germany
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Liu YP, Kuznetsova T, Thijs L, Jin Y, Schmitz B, Brand SM, Brand E, Manunta P, Bianchi G, Struijker-Boudier H, Staessen JA. Are retinal microvascular phenotypes associated with the 1675G/A polymorphism in the angiotensin II type-2 receptor gene? Am J Hypertens 2011; 24:1300-5. [PMID: 21850060 DOI: 10.1038/ajh.2011.151] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The X-linked angiotensin II type-2 receptor (AT2R) gene 1675G/A polymorphism is located in the short intron 1 of the AT2R gene within a sequence motif conforming to a splice branch site. AT2R is expressed in the human retina, but no previous study examined the association between retinal microvascular phenotypes and the AT2R 1675G/A polymorphism. METHODS In 340 subjects randomly selected from a Flemish population (mean age, 51.9 years; 51.5% women), we post-processed retinal images using IVAN software to generate the retinal arteriole and venule equivalents (central retinal arteriolar equivalent (CRAE) and central retinal venular equivalent (CRVE)) and the arteriole-to-venule ratio (AVR). DNA fragments including the AT2R 1675G/A polymorphism were amplified by PCR. We applied a mixed model to assess phenotype-genotype associations while accounting for relatedness and covariables. RESULTS CRAE, CRVE, and AVR averaged 151.9 µm, 215.2 µm, and 0.710, respectively. CRAE was 5.5 µm greater in women than men and decreased with age (P < 0.05). In multivariable-adjusted analyses, CRAE was higher in hemizygous and homozygous carriers of the AT2R A allele than in their G allele counterparts in both sexes combined (+4.49 µm; P = 0.014) and in men (+4.91 µm; P = 0.032) with a similar trend in women (+3.41 µm; P = 0.14). AVR was increased in the presence of the AT2R A allele compared with AT2R G hemizygotes and homozygotes (+0.024; P = 0.0082). The associations of CRAE and CRVE with other polymorphisms were not significant. CONCLUSIONS Pending confirmation in experimental and epidemiological studies, our findings suggest that diameter of the retinal arterioles might be associated with the AT2R 1675G/A polymorphism.
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Woischneck D, Kapapa T, Grimm C, Skalej M, Schmitz B, Blumstein N, Firsching R. Verletzungen des oberen zervikalen Myelons beim schweren Schädel-Hirn-Trauma. Z Orthop Unfall 2011; 149:541-5. [DOI: 10.1055/s-0031-1280170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Koennecke HC, Belz W, Berfelde D, Endres M, Fitzek S, Hamilton F, Kreitsch P, Mackert BM, Nabavi DG, Nolte CH, Pohls W, Schmehl I, Schmitz B, von Brevern M, Walter G, Heuschmann PU. Factors influencing in-hospital mortality and morbidity in patients treated on a stroke unit. Neurology 2011; 77:965-72. [DOI: 10.1212/wnl.0b013e31822dc795] [Citation(s) in RCA: 223] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Skawran S, Weyhe D, Schmitz B, Belyaev O, Bauer KH. Bilateral Endoscopic Total Extraperitoneal (TEP) Inguinal Hernia Repair Does Not Induce Obstructive Azoospermia: Data of a Retrospective and Prospective Trial. World J Surg 2011; 35:1643-8. [DOI: 10.1007/s00268-011-1072-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Gottschalk A, Mauer UM, Danz B, Schmitz B. Dynamische MRT-Bildgebung von Patienten mit Hydrocephalus, intracraniellen Arachnoidalzysten und nach Ventrikulostomie mittels EKG-getriggerter cine true-FISP Sequenzen. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gottschalk A, Mauer UM, Schmitz B, Bornstedt A, Rasche V. Prä- und postoperative Bildgebung spinaler arachnoidaler Adhäsionen bei Patienten mit Syringomyelie mittels EKG-getriggerter cine Balanced FFE - Sequenzen am 3T-MRT. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Uttner I, Weber S, Freund W, Bengel D, Schmitz B, Ludolph AC, Huber R. Hippocampal cavities are not associated with cognitive impairment in transient global amnesia. Eur J Neurol 2010; 18:882-7. [DOI: 10.1111/j.1468-1331.2010.03310.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wandschneider B, Kopp UA, Kliegel M, Stephani U, Kurlemann G, Janz D, Schmitz B. Prospective memory in patients with juvenile myoclonic epilepsy and their healthy siblings. Neurology 2010; 75:2161-7. [DOI: 10.1212/wnl.0b013e318202010a] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Becke K, Landsleitner B, Reinhold P, Schmitz B, Strauss J, Philippi-Höhne C. [Diagnostic and interventional operations in childhood: anesthesiology management]. Anaesthesist 2010; 59:1013-20. [PMID: 20922357 DOI: 10.1007/s00101-010-1781-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Diagnostic and interventional procedures in children often need to be performed under sedation. This prevents pain and stress in children and provides optimal examination conditions. For complete immobilization and stress shielding the depth of sedation often corresponds with general anesthesia. Therefore, established safety standards need to be observed and a fundamental precondition is implementation by a skilled anesthesiologist who can handle the anesthesiology procedure and its possible complications. Organization, schedule, medication, equipment, monitoring and post-anesthesiology care should be institutionally defined. A professional anesthesiology management of pediatric patients is an important factor to increase the quality of care, patient safety and patient satisfaction.
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Affiliation(s)
- K Becke
- Abteilung für Anästhesie und Intensivmedizin, Klinik Hallerwiese/Cnopf'sche Kinderklinik, Diakonie Neuendettelsau, St. Johannis-Mühlgasse 19, 90419 Nürnberg, Deutschland.
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Bruns F, Telgmann RG, Schröer B, Schmitz B, Cambien F, Amarenco P, Brand E, Brand-Herrmann SM. P109 FUNCTIONAL ANALYSES OF THE HUMAN LEUKOTRIENE C4 SYNTHASE GENE PROMOTER MOLECULAR HAPLOTYPES. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70176-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schmitz B, Schmidt-Petersen K, Brand E, Telgmann R, Nicaud V, Hagedorn C, Labreuche J, Dördelmann C, Elbaz A, Gautier-Bertrand M, Fischer J, Evans A, Morrison C, Arveiler D, Stoll M, Amarenco P, Cambien F, Paul M, Brand-Herrmann SM. P391 OSTEOPONTIN GENE VARIATION AND CARDIO/CEREBROVASCULAR DISEASE PHENOTYPES. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70458-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schmitz B, Vischer P, Telgmann R, Schmidt-Petersen K, Beining K, Huge A, Paul M, Amarenco P, Cambien F, Brand E, Brand-Herrmann SM. MS153 MOLECULAR INVESTIGATION OF THE FUNCTIONAL RELEVANCE OF MISSENSE VARIANTS OF ICAM-1. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70654-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schmitz B, Vischer P, Brand E, Fabritius C, Cambien F, Telgmann R, Brand-Herrmann SM. MS157 INVESTIGATION OF THE FUNCTIONAL RELEVANCE OF VCAM-1 MISSENSE VARIANTS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70658-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Schmitz B, Telgmann R, Brand E, Rüßmann C, Fischer J, Paul M, Brand-Herrmann SM. P422 PROFILING OF BIGLYCAN MOLECULAR PROMOTER HAPLOTYPES. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70489-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hagedorn C, Telgmann R, Dördelmann C, Schmitz B, Hasenkamp S, Cambien F, Paul M, Brand E, Brand-Herrmann SM. P106 IDENTIFICATION AND FUNCTIONAL ANALYSES OF MOLECULAR HAPLOTYPES OF THE HUMAN OSTEOPROTEGERIN GENE PROMOTER. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70173-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Freund W, Stuber T, Schmitz B. [A somersault with serious consequences. Differential diagnostic considerations on subdural hematoma/hygroma]. Nervenarzt 2010; 81:437-441. [PMID: 20349031 DOI: 10.1007/s00115-010-2934-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- W Freund
- Abteilung Diagnostische und Interventionelle Radiologie, Universitätsklinikum Ulm, 89077 Ulm.
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Freund W, Wunderlich AP, Stuber G, Mayer F, Steffen P, Mentzel M, Schmitz B, Weber F. Die Rolle von periaqueductalem Grau und cingulärem Kortex bei der Schmerzunterdrückung bei Patienten mit komplexem regionalem Schmerzsyndrom. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
41 cases of cervical intradural disc herniation have been reported in the literature, none at the C7-T1 level. We describe a case of myelopathy after a fall. The female patient suffered an ataxia of the legs in combination with unilateral C8 cervicocephalgia and hypaesthesia. Magnetic resonance imaging revealed a space-occupying lesion at C7-T1, so we suspected a tumour. After a dorsolateral approach, an intradural disc herniation was found. Six months after the operation, the patient is free of complaints.
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Radtke C, Schmitz B, Spies M, Kocsis JD, Vogt PM. Peripheral glial cell differentiation from neurospheres derived from adipose mesenchymal stem cells. Int J Dev Neurosci 2009; 27:817-23. [PMID: 19699793 DOI: 10.1016/j.ijdevneu.2009.08.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2009] [Accepted: 08/14/2009] [Indexed: 01/08/2023] Open
Abstract
Mesenchymal stem cells derived from bone marrow and adipose tissue are being considered for use in neural repair because they can differentiate after appropriate induction in culture into neurons and glia. The question we asked was if neurospheres could be harvested from adipose-derived stem cells and if they then could differentiate in culture to peripheral glial-like cells. Here, we demonstrate that adipose-derived mesenchymal stem cells can form nestin-positive non-adherent neurosphere cellular aggregates when cultured with basic fibroblast growth factor and epidermal growth factor. Dissociation of these neurospheres and removal of mitogens results in expression of the characteristic Schwann cell markers S100 and p75 nerve growth factor receptor and GFAP. The simultaneous expression of these glia markers are characteristic features of Schwann cells and olfactory ensheathing cells which have unique properties regarding remyelination and enhancement of axonal regeneration. When co-cultured with dorsal root ganglion neurons, the peripheral glial-like cells derived from adipose mesenchymal stem cells aligned with neuritis and stimulated neuritic outgrowth. These results indicate that neurospheres can be generated from adipose-derived mesenchymal stem cells, and upon mitogen withdrawal can differentiate into peripheral glial cells with neurotrophic effects.
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Affiliation(s)
- C Radtke
- Department of Plastic, Hand- and Reconstructive Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30659 Hannover, German.
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Azagra JS, Goergen M, Brondello S, Calmes MO, Philippe P, Schmitz B. Laparoscopic liver sectionectomy 2 and 3 (LLS 2 and 3): towards the "gold standard". ACTA ACUST UNITED AC 2009; 16:422-6. [PMID: 19466378 DOI: 10.1007/s00534-009-0117-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2009] [Accepted: 03/31/2009] [Indexed: 02/06/2023]
Abstract
BACKGROUND The purpose of this article is to define the state of the art in laparoscopic liver sectionectomy 2 and 3 (LLS 2 and 3) in order to advance the good option towards the "gold standard". METHODS Based on a large review of the literature as well as on our personal experience the authors define clearly: the feasibility and the effectiveness of LLS 2 and 3. RESULTS In this review the conversion rate was <4%, the histological positive margins was <0.8%, and the mortality was inferior to 0.8%. CONCLUSION The LLS 2 and 3 seem equivalent or perhaps better option compared with the same intervention performed by laparotomy and can be proposed as primary with a grade C recommendation.
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Affiliation(s)
- J S Azagra
- Digestive and Endocrine Multidisciplinary Unit (UMADE), Centre Hospitalier de Luxembourg, 4, rue Barblé, 1210, Luxembourg, Luxembourg.
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Abstract
Two neuroimaging studies using functional magnetic resonance imaging (fMRI) and thermally induced pain are presented. Fifteen healthy right-handed subjects were imaged while they had to discern different levels of thermal stimuli in the first study and while they disengaged from the feeling of pain during constant stimulation in the second study. In the first experiment, during painful phasic stimuli, right-sided anterior insular activation as well as bilateral posterior insular activation could be shown regardless of stimulation side, as well as right-sided activation of sensory association areas in the superior parietal lobule. Also, activation of the ipsilateral sensorimotor cortex could be shown. In the second experiment, all subjects succeeded in suppressing the feeling of pain during previously painful levels of stimulation. During the early part of the tonic painful stimulation, bilateral activation of caudate head and dorsolateral prefrontal cortex (DLPFC) as well as insular cortex and dorsal anterior cingulated cortex (dACC) was observed. During the late part of the tonic painful stimulation, anterior insular activation as well as dACC and bilateral prefrontal cortical activation could be shown. Taken together, the activation of PFC and caudate nucleus hints at an important role in the initiation (caudate) and maintenance (PFC) of suppression of the feeling of pain. No ipsilateral sensorimotor activation could be shown in the second experiment. The possible import of unwanted sensorimotor activation due to the simultaneous rating process in the first experiment is discussed.
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Affiliation(s)
- W Freund
- Diagnostic and Interventional Radiology, University Hospitals Ulm, Steinhövelstrasse 9, Ulm, Germany.
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