1
|
Schmidt V, Mukka S, Bergdahl C, Ekholm C, Brüggemann A, Wolf O. Epidemiology, Treatment, and Mortality of 3,983 Scapula Fractures from the Swedish Fracture Register. J Shoulder Elbow Surg 2024:S1058-2746(24)00305-7. [PMID: 38688421 DOI: 10.1016/j.jse.2024.03.024] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/19/2024] [Accepted: 03/03/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Scapula fractures are relatively uncommon, accounting for <1% of all fractures and approximately 3-5% of shoulder girdle fractures. This study comprehensively describes the epidemiology, fracture classification, treatment, and mortality associated with scapula fractures within a large adult Swedish population. METHODS This observational study included all patients ≥18 years old at the time of injury with a scapula fracture (ICD S42.1) registered in the Swedish Fracture Register between March 2011 and June 2020. Variables studied were age, sex, and injury mechanism, including energy level, fracture classification, associated fractures, treatment, and mortality. RESULTS We included 3,930 patients (mean age 58 years, SD 18, 64% men) with 3,973 scapula fractures. Some 22% of the fractures were caused by high-energy trauma and 21% had at least one associated fracture. High energy-injuries were most common in glenoid neck (44%) and scapular body (35%) fractures. However, same-level falls were the most common cause of glenoid rim (62%) and intra-articular glenoid (55%) fractures. Clavicle fractures (9%) and proximal humerus fractures (5%) were the most commonly associated fractures. The most common fracture types were the glenoid rim (n=1,289, 32%) and scapular body (n=1,098, 28%) fractures. Nonoperative treatment was performed in 81% of patients. Glenoid rim and intra-articular glenoid fractures were treated operatively in over 30% of cases. The mortality rate for the whole cohort was 4% at 1 year. CONCLUSIONS Scapula fractures are predominately sustained by men. High energetic injuries and associated fractures are present in one in five patients. Nonoperative treatment is chosen in four of five patients, but for some fracture types one in three undergo surgery.
Collapse
Affiliation(s)
- Viktor Schmidt
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå,.
| | - Sebastian Mukka
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå
| | - Carl Bergdahl
- Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg; Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg
| | - Carl Ekholm
- Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg; Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg
| | - Anders Brüggemann
- Department of Surgical Sciences/Orthopaedics, Uppsala University, Uppsala, Sweden
| | - Olof Wolf
- Department of Surgical Sciences/Orthopaedics, Uppsala University, Uppsala, Sweden
| |
Collapse
|
2
|
Schmidt V, Gordon M, Petterson A, Buttazzoni C, Seimersson A, Sayed-Noor A, Mukka S, Wadsten M. Functional outcomes are restored a decade after a distal radius fracture: a prospective long-term follow-up study. J Hand Surg Eur Vol 2024; 49:322-328. [PMID: 37684021 PMCID: PMC10882947 DOI: 10.1177/17531934231194682] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
We performed an 11-13-year prospective follow-up of patients after a distal radial fracture (DRF) to investigate the association between fracture malunion, radiocarpal osteoarthritis and clinical outcome. In total, 292 patients responded to patient-reported outcome measures; of them, 242 underwent clinical examination. Clinical outcomes improved with time. A decade after fracture, median Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) score was 5, EuroQol Five-dimensions score was 1.0, and range of motion and grip strength were 96% of the contralateral side. Neither osteoarthritis (6%) nor pseudoarthrosis of the ulnar styloid (30%) affected the outcomes. Dorsal tilt, radial inclination, ulnar variance and intra-articular extension did not affect long-term clinical outcomes or the risk of osteoarthritis. Recovery after a DRF is an ongoing process that lasts years. A decade after the injury event, range of motion, grip strength and QuickDASH were recovered to population normal, regardless of radiological outcomes.Level of evidence: II.
Collapse
Affiliation(s)
- Viktor Schmidt
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Max Gordon
- Department of Clinical Sciences at Danderyd Hospital (KIDS), Karolinska Institutet, Stockholm, Sweden
| | - Anna Petterson
- Department of Orthopaedics, Östersund Hospital, Östersund, Sweden
| | | | | | - Arkan Sayed-Noor
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Sebastian Mukka
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Mats Wadsten
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| |
Collapse
|
3
|
Hertel S, Basche S, Schmidt V, Staszyk C, Hannig C, Sterzenbach T, Hannig M. Erosion behaviour of human, bovine and equine dental hard tissues. Sci Rep 2023; 13:19617. [PMID: 37949920 PMCID: PMC10638419 DOI: 10.1038/s41598-023-46759-9] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Abstract
Dental hard tissues from different species are used in dental research, but little is known about their comparability. The aim of this study was to compare the erosive behaviour of dental hard tissues (enamel, dentin) obtained from human, bovine and equine teeth. In addition, the protective effect of the pellicle on each hard tissue under erosive conditions was determined. In situ pellicle formation was performed for 30 min on enamel and dentin samples from all species in four subjects. Calcium and phosphate release was assessed during 120 s of HCl incubation on both native and pellicle-covered enamel and dentin samples. SEM and TEM were used to examine surface changes in native enamel and dentin samples after acid incubation and the ultrastructure of the pellicle before and after erosive exposure. In general, bovine enamel and dentin showed the highest degree of erosion after acid exposure compared to human and equine samples. Erosion of human primary enamel tended to be higher than that of permanent teeth, whereas dentin showed the opposite behaviour. SEM showed that eroded equine dentin appeared more irregular than human or bovine dentin. TEM studies showed that primary enamel appeared to be most susceptible to erosion.
Collapse
Affiliation(s)
- S Hertel
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
| | - S Basche
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - V Schmidt
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, 66421, Homburg, Germany
| | - C Staszyk
- Institute for Veterinary-Anatomy, -Histology and -Embryology, Faculty for Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Str. 98, 35392, Giessen, Germany
| | - C Hannig
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - T Sterzenbach
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - M Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, 66421, Homburg, Germany
| |
Collapse
|
4
|
Schmidt V, Gordon M, Tägil M, Sayed-Noor A, Mukka S, Wadsten M. Association Between Radiographic and Clinical Outcomes Following Distal Radial Fractures: A Prospective Cohort Study with 1-Year Follow-up in 366 Patients. J Bone Joint Surg Am 2023; 105:1156-1167. [PMID: 37172109 PMCID: PMC10377255 DOI: 10.2106/jbjs.22.01096] [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] [Indexed: 05/14/2023]
Abstract
BACKGROUND Several studies of distal radial fractures have investigated final displacement and its association with clinical outcomes. There is still no consensus on the importance of radiographic outcomes, and published studies have not used the same criteria for acceptable alignment. Previous reports have involved the use of linear or dichotomized analyses. METHODS The present study included 438 patients who were managed with either reduction and cast immobilization or surgery for the treatment of distal radial fractures. Radiographic outcomes were determined on the basis of radiographs that were made 3 months after the injury. Clinical outcome was determined on the basis of the QuickDASH (an abbreviated version of the Disabilities of the Arm, Shoulder and Hand [DASH] questionnaire) score, range of motion, and grip strength at 1 year after the injury. Nonlinear relations were analyzed with cubic splines. RESULTS Three hundred and sixty-six patients (84%) had both radiographic and clinical follow-up. Seventy patients were lost to follow-up. The mean age was 57 years (range, 18 to 75 years), and 79% of the patients were female. Dorsal tilt was the radiographic parameter that was most strongly associated with the QuickDASH score, grip strength, and range of motion. We found nonlinear relations. Clinical outcomes were found to worsen with increasing dorsal tilt, with the cutoff value being approximately 5°. CONCLUSIONS We found that clinical outcomes following distal radial fractures have a nonlinear relationship with dorsal tilt, with worse outcomes being associated with increasing dorsal tilt. The decline in clinical outcome starts at 5°, but there is unlikely to be a noticeable difference in capability as measured with the QuickDASH until 20° of dorsal tilt (based on the minimum clinically important difference) in a population up to 75 years old. LEVEL OF EVIDENCE Diagnostic Level II . See Instructions for Authors for a complete description of levels of evidence.
Collapse
Affiliation(s)
- Viktor Schmidt
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Max Gordon
- Department of Clinical Sciences, Danderyd Hospital (KIDS), Karolinska Institutet, Stockholm, Sweden
| | - Magnus Tägil
- Orthopaedic Unit, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
| | - Arkan Sayed-Noor
- Department of Clinical Sciences, College of Medicine, University of Sharjah, United Arab Emirates
| | - Sebastian Mukka
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Mats Wadsten
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| |
Collapse
|
5
|
Stelzle D, Makasi C, Welte TM, Ruether C, Schmidt V, Gabriel S, Bottieau E, Fleury A, Ngowi BJ, Winkler AS. Report of three patients with extensive neurocysticercosis in rural southern Tanzania: neurological, serological and neuroradiological findings. J Med Case Rep 2023; 17:311. [PMID: 37408061 DOI: 10.1186/s13256-023-03974-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 05/05/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND Neurocysticercosis (NCC) is common in eastern Africa, but disease presentation varies considerably. Most patients have single or few NCC-typical lesions in their brain but some present with a large number of lesions. We present three patients with positive antibody-based serology for Taenia solium cysticercosis screened at the Vwawa district hospital, Mbozi district, southern Tanzania, in whom extensive NCC was confirmed by neuroimaging. CASE PRESENTATIONS Patient 1 was a 55-year-old female from the tribe Malila smallholder farmer who has had four generalized tonic-clonic epileptic seizures over a period of 11 years and one episode of transient left hemiparesis one year before seizure onset. The patient also reported monthly to weekly episodes of severe, progressive, unilateral headache. The computed tomography (CT) scan of the brain showed 25 NCC lesions of which 15 were in the vesicular stage. Patient 2 was a 30-year-old male from tribe Nyha mechanic who reported monthly episodes of moderate to severe, progressive, bilateral headache, but no epileptic seizures. The CT scan showed 63 NCC lesions of which 50 were in the vesicular stage. Patient 3 was a 54-year-old female from the tribe Malila smallholder farmer who suffered from frequent generalized tonic-clonic epileptic seizures with potential signs of focal seizure onset. She also reported weekly to daily episodes of severe, progressive, unilateral headache. The CT scan showed 29 NCC lesions of which 28 were in the vesicular stage. CONCLUSIONS Clinical presentation of NCC with multiple brain lesions varies considerably ranging from few epileptic seizures and severe headache to severe epilepsy with frequent epileptic seizures. Individuals with neurological signs/symptoms that may be due to NCC, based for example on epidemiological criteria or serological evidence of cysticercosis, are recommended to undergo neuroimaging before anthelminthic treatment is considered.
Collapse
Affiliation(s)
- D Stelzle
- Center for Global Health, Department of Neurology, School of Medicine, Technical University of Munich, Munich, Germany.
| | - C Makasi
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
- Faculty of Medicine, Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | - T M Welte
- Center for Global Health, Department of Neurology, School of Medicine, Technical University of Munich, Munich, Germany
- Epilepsy Center, Department of Neurology, University Hospital Erlangen, Erlangen, Germany
| | - C Ruether
- Department of Neuroradiology, RoMed Clinic Rosenheim, Rosenheim, Germany
| | - V Schmidt
- Center for Global Health, Department of Neurology, School of Medicine, Technical University of Munich, Munich, Germany
| | - S Gabriel
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - E Bottieau
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - A Fleury
- Departamento de Medicina Genómica y Toxicología ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México/Instituto Nacional de Neurología y Neurocirugía, Ciudad de Mexico, Mexico
| | - B J Ngowi
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
- University of Dar Es Salaam, Mbeya College of Health and Allies Sciences, Mbeya, Tanzania
| | - A S Winkler
- Center for Global Health, Department of Neurology, School of Medicine, Technical University of Munich, Munich, Germany
- Department of Community Medicine and Global Health, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| |
Collapse
|
6
|
Stelzle D, Makasi C, Schmidt V, Trevisan C, Van Damme I, Ruether C, Dorny P, Magnussen P, Zulu G, Mwape KE, Bottieau E, Prazeres da Costa C, Prodjinotho UF, Carabin H, Jackson E, Fleury A, Gabriël S, Ngowi BJ, Winkler AS. Efficacy and safety of antiparasitic therapy for neurocysticercosis in rural Tanzania: a prospective cohort study. Infection 2023:10.1007/s15010-023-02021-y. [PMID: 36961623 PMCID: PMC10037392 DOI: 10.1007/s15010-023-02021-y] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/11/2023] [Indexed: 03/25/2023]
Abstract
PURPOSE Neurocysticercosis is common in regions endemic for Taenia solium. Active-stage neurocysticercosis can be treated with antiparasitic medication, but so far no study on efficacy and safety has been conducted in Africa. METHODS We conducted a prospective cohort study on treatment of neurocysticercosis in Tanzania between August 2018 and January 2022. Patients were initially treated with albendazole (15 mg/kg/d) for 10 days and followed up for 6 months. Additionally in July 2021, all participants who then still had cysts were offered a combination therapy consisting of albendazole (15 mg/kg/d) and praziquantel (50 mg/kg/d). Antiparasitic treatment was accompanied by corticosteroid medication and anti-seizure medication if the patient had experienced epileptic seizures before treatment. RESULTS Sixty-three patients were recruited for this study, of whom 17 had a complete follow-up after albendazole monotherapy. These patients had a total of 138 cysts at baseline, of which 58 (42%) had disappeared or calcified by the end of follow-up. The median cyst reduction was 40% (interquartile range 11-63%). Frequency of epileptic seizures reduced considerably (p < 0.001). Three patients had all active cysts resolved or calcified and of the remaining 14, eight received the combination therapy which resolved 63 of 66 cysts (95%). Adverse events were infrequent and mild to moderate during both treatment cycles. CONCLUSION Cyst resolution was unsatisfactory with albendazole monotherapy but was very high when it was followed by a combination of albendazole and praziquantel.
Collapse
Affiliation(s)
- D Stelzle
- Center for Global Health, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany.
- Department of Neurology, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany.
| | - C Makasi
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar es Salaam, Tanzania
| | - V Schmidt
- Center for Global Health, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Department of Neurology, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - C Trevisan
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - I Van Damme
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
- Service of Foodborne Pathogens, Sciensano, Brussels, Belgium
| | - C Ruether
- Department of Neuroradiology, Faculty of Medicine, Technical University of Munich, Munich, Germany
| | - P Dorny
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - P Magnussen
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - G Zulu
- Ministry of Health, Lusaka, Zambia
| | - K E Mwape
- Department of Clinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - E Bottieau
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - C Prazeres da Costa
- Institute for Medical Microbiology, Immunology and Hygiene, Center for Global Health, Technical University of Munich, Munich, Germany
- German Center for Infection and Research (DZIF), Munich, Germany
| | - U F Prodjinotho
- Center for Global Health, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Institute for Medical Microbiology, Immunology and Hygiene, Center for Global Health, Technical University of Munich, Munich, Germany
| | - H Carabin
- Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, J2S 2M2, Canada
- Département de Médecine Sociale et Préventive, École de Santé Publique de l'université de Montréal, Montréal, QC, H3N 1X9, Canada
- Centre de Recherche en Santé Publique (CReSP) de l'université de Montréal et du CIUSS du Centre Sud de Montréal, Montréal, QC, H3N 1X9, Canada
- Groupe de Recherche en Épidémiologie des Zoonoses et Santé Publique (GREZOSP), Université de Montréal, Saint-Hyacinthe, QC, J2S 2M2, Canada
| | - E Jackson
- Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, J2S 2M2, Canada
- Centre de Recherche en Santé Publique (CReSP) de l'université de Montréal et du CIUSS du Centre Sud de Montréal, Montréal, QC, H3N 1X9, Canada
- Groupe de Recherche en Épidémiologie des Zoonoses et Santé Publique (GREZOSP), Université de Montréal, Saint-Hyacinthe, QC, J2S 2M2, Canada
| | - A Fleury
- Instituto de Investigaciones Biomédicas-UNAM/Instituto Nacional de Neurología y Neurocirugía/Facultad de Medicina-UNAM, Ciudad de Mexico, Mexico
| | - S Gabriël
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - B J Ngowi
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar es Salaam, Tanzania
- University of Dar es Salaam, Mbeya College of Health and Allies Sciences, Mbeya, Tanzania
| | - A S Winkler
- Center for Global Health, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Centre for Global Health, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Neurology, TUM School of Medicine, Technical University of Munich (TUM), Munich, Germany
| |
Collapse
|
7
|
Ingen-Housz-Oro S, Schmidt V, Ameri MM, Abe R, Brassard A, Mostaghimi A, Paller AS, Romano A, Didona B, Kaffenberger BH, Ben Said B, Thong BYH, Ramsay B, Brezinova E, Milpied B, Mortz CG, Chu CY, Sotozono C, Gueudry J, Fortune DG, Dridi SM, Tartar D, Do-Pham G, Gabison E, Phillips EJ, Lewis F, Salavastru C, Horvath B, Dart J, Setterfield J, Newman J, Schulz JT, Delcampe A, Brockow K, Seminario-Vidal L, Jörg L, Watson MP, Gonçalo M, Lucas M, Torres M, Noe MH, Hama N, Shear NH, O’Reilly P, Wolkenstein P, Romanelli P, Dodiuk-Gad RP, Micheletti RG, Tiplica GS, Sheridan R, Rauz S, Ahmad S, Chua SL, Flynn TH, Pichler W, Le ST, Maverakis E, Walsh S, French LE, Brüggen MC. Post-acute phase and sequelae management of epidermal necrolysis: an international, multidisciplinary DELPHI-based consensus. Orphanet J Rare Dis 2023; 18:33. [PMID: 36814255 PMCID: PMC9945700 DOI: 10.1186/s13023-023-02631-7] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/06/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Long-term sequelae are frequent and often disabling after epidermal necrolysis (Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN)). However, consensus on the modalities of management of these sequelae is lacking. OBJECTIVES We conducted an international multicentric DELPHI exercise to establish a multidisciplinary expert consensus to standardize recommendations regarding management of SJS/TEN sequelae. METHODS Participants were sent a survey via the online tool "Survey Monkey" consisting of 54 statements organized into 8 topics: general recommendations, professionals involved, skin, oral mucosa and teeth, eyes, genital area, mental health, and allergy workup. Participants evaluated the level of appropriateness of each statement on a scale of 1 (extremely inappropriate) to 9 (extremely appropriate). Results were analyzed according to the RAND/UCLA Appropriateness Method. RESULTS Fifty-two healthcare professionals participated. After the first round, a consensus was obtained for 100% of 54 initially proposed statements (disagreement index < 1). Among them, 50 statements were agreed upon as 'appropriate'; four statements were considered 'uncertain', and ultimately finally discarded. CONCLUSIONS Our DELPHI-based expert consensus should help guide physicians in conducting a prolonged multidisciplinary follow-up of sequelae in SJS-TEN.
Collapse
Affiliation(s)
- S. Ingen-Housz-Oro
- grid.412116.10000 0004 1799 3934Department of Dermatology, AP-HP, Henri Mondor Hospital, 1 Rue Gustave Eiffel, 94000 Créteil, France ,ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.410511.00000 0001 2149 7878EpiDermE, Université Paris Est Créteil, Créteil, France
| | - V. Schmidt
- grid.410567.1University Hospital Basel, Basel, Switzerland ,grid.7400.30000 0004 1937 0650Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - M. M. Ameri
- grid.7400.30000 0004 1937 0650Faculty of Medicine, University of Zurich, Zurich, Switzerland ,grid.412004.30000 0004 0478 9977Department of Dermatology, University Hospital Zurich, Zurich, Switzerland ,grid.507894.70000 0004 4700 6354Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | - R. Abe
- grid.260975.f0000 0001 0671 5144Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A. Brassard
- grid.413079.80000 0000 9752 8549Department of Dermatology, UC Davis Medical Center, Sacramento, CA USA
| | - A. Mostaghimi
- grid.62560.370000 0004 0378 8294Department of Dermatology, Brigham and Women’s Hospital, Boston, MA USA
| | - A. S. Paller
- grid.16753.360000 0001 2299 3507Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - A. Romano
- grid.419843.30000 0001 1250 7659Oasi Research Institute-IRCCS, Troina, Italy
| | - B. Didona
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.419457.a0000 0004 1758 0179Rare Disease Unit, I Dermatology Division, Istituto Dermopatico Dell’Immacolata, IRCCS, Rome, Italy
| | - B. H. Kaffenberger
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.412332.50000 0001 1545 0811The Ohio State University Wexner Medical Center Division of Dermatology, Upper Arlington, OH USA
| | - B. Ben Said
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,Department of Dermatology, CHU Edouard Herriot, Lyon, France
| | - B. Y. H. Thong
- grid.240988.f0000 0001 0298 8161Department of Rheumatology, Allergy and Immunology, Tan Tock Seng Hospital, Singapore, Singapore
| | - B. Ramsay
- grid.415522.50000 0004 0617 6840Department of Dermatology, University Hospital Limerick, Limerick, Ireland
| | - E. Brezinova
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.10267.320000 0001 2194 0956First Department of Dermatovenereology, Masaryk University Faculty of Medicine, St. Ann’s Faculty Hospital in Brno, Brno, Czech Republic
| | - B. Milpied
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.412041.20000 0001 2106 639XDepartment of Adult and Pediatric Dermatology, Bordeaux University Hospitals, Bordeaux, France
| | - C. G. Mortz
- grid.7143.10000 0004 0512 5013Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark
| | - C. Y. Chu
- grid.19188.390000 0004 0546 0241Department of Dermatology, National Taiwan University Hospital, National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, 10002 Taiwan
| | - C. Sotozono
- grid.272458.e0000 0001 0667 4960Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-Cho, Hirokoji-Agaru, Kawaramach-Dori, Kamigyo-Ku, Kyoto, 602-0841 Japan
| | - J. Gueudry
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.417615.0Department of Ophthalmology, CHU Charles-Nicolle, Rouen, France
| | - D. G. Fortune
- grid.10049.3c0000 0004 1936 9692Department of Psychology, University of Limerick, Limerick, Ireland
| | - S. M. Dridi
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.416670.2MICORALIS Laboratory, Department of Periodontology, Faculty of Dentistry, Côte d’Azur University, Saint Roch Hospital, Nice, France
| | - D. Tartar
- grid.27860.3b0000 0004 1936 9684Department of Dermatology, University of California Davis, Sacramento, CA USA
| | - G. Do-Pham
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.414145.10000 0004 1765 2136Department of Internal Medicine, Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | - E. Gabison
- grid.417888.a0000 0001 2177 525XFondation Ophtalmologique Adolphe de Rothschild, Paris, France
| | - E. J. Phillips
- grid.1025.60000 0004 0436 6763Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, WA Australia ,grid.412807.80000 0004 1936 9916Department of Medicine, Vanderbilt University Medical Center, Nashville, TN USA
| | - F. Lewis
- grid.425213.3St John’s Institute of Dermatology, Guy’s and St Thomas’ Hospital, London, UK
| | - C. Salavastru
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,Department of Paediatric Dermatology, Colentina Clinical Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - B. Horvath
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.4830.f0000 0004 0407 1981Department of Dermatology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB Groningen, The Netherlands
| | - J. Dart
- grid.83440.3b0000000121901201Moorfields Eye Hospital NHS Foundation Trust, The UCL Institute of Ophthalmology, London, UK
| | - J. Setterfield
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.420545.20000 0004 0489 3985Department of Oral Medicine, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - J. Newman
- grid.429705.d0000 0004 0489 4320Department of Dermatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - J. T. Schulz
- grid.32224.350000 0004 0386 9924Division of Burns, Massachusetts General Hospital, Boston, 02114 USA
| | - A. Delcampe
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France ,grid.417615.0Department of Ophthalmology, CHU Charles-Nicolle, Rouen, France ,grid.417888.a0000 0001 2177 525XFondation Ophtalmologique Adolphe de Rothschild, Paris, France ,grid.411119.d0000 0000 8588 831XDepartment of Ophthalmology, CHU Bichat-Claude Bernard, Paris, France
| | - K. Brockow
- grid.6936.a0000000123222966Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| | - L. Seminario-Vidal
- grid.170693.a0000 0001 2353 285XDepartment of Dermatology and Cutaneous Surgery, University of South Florida, Tampa, FL USA
| | - L. Jörg
- grid.412004.30000 0004 0478 9977Department of Dermatology, University Hospital Zurich, Zurich, Switzerland ,grid.5734.50000 0001 0726 5157Division of Allergology and Clinical Immunology, Department of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M. P. Watson
- grid.439257.e0000 0000 8726 5837Cornea and External Eye Disease Service, Moorfields Eye Hospital, London, UK
| | - M. Gonçalo
- grid.28911.330000000106861985Department of Dermatology, Coimbra University Hospital Center, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - M. Lucas
- grid.1012.20000 0004 1936 7910Medical School, University of Western Australia, Perth, WA 6009 Australia ,grid.3521.50000 0004 0437 5942Department of Immunology, Sir Charles Gairdner Hospital, Pathwest Laboratory Medicine, Perth, WA 6009 Australia
| | - M. Torres
- grid.452525.1Allergy Unit, IBIMA-Regional University Hospital of Malaga-UMA, Málaga, Spain
| | - M. H. Noe
- grid.62560.370000 0004 0378 8294Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - N. Hama
- grid.260975.f0000 0001 0671 5144Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - N. H. Shear
- grid.17063.330000 0001 2157 2938Department of Dermatology, University of Toronto, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Sunnybrook Health Sciences Centre, Toronto, ON Canada
| | - P. O’Reilly
- grid.10049.3c0000 0004 1936 9692Department of Nursing and Midwifery, University of Limerick, Limerick, Ireland
| | - P. Wolkenstein
- grid.412116.10000 0004 1799 3934Department of Dermatology, AP-HP, Henri Mondor Hospital, 1 Rue Gustave Eiffel, 94000 Créteil, France ,ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France
| | - P. Romanelli
- grid.26790.3a0000 0004 1936 8606Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami, Miller School of Medicine, Miami, FL USA
| | - R. P. Dodiuk-Gad
- grid.6451.60000000121102151Dermatology Department, Emek Medical Center, Bruce Rappaport Faculty of Medicine, Technion - Institute of Technology, Haifa, Israel ,grid.17063.330000 0001 2157 2938Department of Medicine, University of Toronto, Toronto, Canada
| | - R. G. Micheletti
- grid.25879.310000 0004 1936 8972Department of Dermatology and Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - G. S. Tiplica
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,2Nd Department of Dermatology, Colentina Clinical Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - R. Sheridan
- grid.415829.30000 0004 0449 5362Burn Service, Boston Shriners Hospital for Children, Boston, MA USA ,grid.32224.350000 0004 0386 9924Division of Burns, Massachusetts General Hospital, Boston, MA USA ,grid.38142.3c000000041936754XDepartment of Surgery, Harvard Medical School, Boston, MA USA
| | - S. Rauz
- grid.6572.60000 0004 1936 7486Academic Unit of Ophthalmology, Birmingham and Midland Eye Centre, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - S. Ahmad
- grid.83440.3b0000000121901201Moorfields Eye Hospital NHS Foundation Trust, The UCL Institute of Ophthalmology, London, UK
| | - S. L. Chua
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.412563.70000 0004 0376 6589Department of Dermatology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - T. H. Flynn
- grid.460892.10000 0004 0389 5639Ophthalmology, Bon Secours Hospital, Cork, Ireland
| | - W. Pichler
- grid.482939.dADR-AC GmbH, Bern, Switzerland
| | - S. T. Le
- grid.413079.80000 0000 9752 8549Department of Dermatology, UC Davis Medical Center, Sacramento, CA USA
| | - E. Maverakis
- grid.413079.80000 0000 9752 8549Department of Dermatology, UC Davis Medical Center, Sacramento, CA USA
| | - S. Walsh
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.429705.d0000 0004 0489 4320Department of Dermatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - L. E. French
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.411095.80000 0004 0477 2585Department of Dermatology, University Hospital, Munich University of Ludwig Maximilian, Munich, Germany ,grid.26790.3a0000 0004 1936 8606Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL USA
| | - M. C. Brüggen
- ToxiTEN Group, European Reference Network for Rare Skin Diseases, Paris, France ,grid.7400.30000 0004 1937 0650Faculty of Medicine, University of Zurich, Zurich, Switzerland ,grid.412004.30000 0004 0478 9977Department of Dermatology, University Hospital Zurich, Zurich, Switzerland ,grid.507894.70000 0004 4700 6354Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| |
Collapse
|
8
|
Schmidt V, Mellstrand-Navarro C, Mukka S, Wadsten M. Marginal secondary displacement in fractures of the distal radius at follow-up - an important predictor for late displacement and malunion. J Hand Surg Eur Vol 2023; 48:524-531. [PMID: 36624929 PMCID: PMC10363931 DOI: 10.1177/17531934221146063] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/11/2023]
Abstract
Treatment recommendations in fractures of the distal radius are often based on the degree of displacement and functional demands. The fracture may be within an acceptable radiological range, but a marginal deterioration in alignment then occurs between the initial visit and follow-up. This may pose a risk for late displacement that may require further treatment. We secondarily analysed prospectively collected data and included 165 patients. We found that marginal secondary displacement (odds ratio (OR) 9.7), anterior comminution (OR 8.8), loss of anterior apposition (OR 6.8) and dorsal comminution (OR 2.6) were predictors of late displacement. Marginal secondary displacement is an important predictor of late displacement and malunion in fractures of the distal radius. Clinicians should not unequivocally accept general guidelines on alignment but also assess a deterioration in fracture alignment on radiographic follow-up and be aware of the potential need for surgery to avoid malunion in cases that show early secondary displacement, even when radiographic measures are within acceptable limits.Level of evidence: III.
Collapse
Affiliation(s)
- Viktor Schmidt
- Department of Surgical and Perioperative Sciences at Umeå University, Sweden
| | - Cecilia Mellstrand-Navarro
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.,Department of Hand Surgery, Södersjukhuset, Stockholm, Sweden
| | - Sebastian Mukka
- Department of Surgical and Perioperative Sciences at Umeå University, Sweden
| | - Mats Wadsten
- Department of Surgical and Perioperative Sciences at Umeå University, Sweden
| |
Collapse
|
9
|
Immohr MB, Adrego FDS, Teichert HL, Schmidt V, Barth M, Sugimura Y, Lichtenberg A, Akhyari P. Development and Comparison of Native Extracellular Matrix-Derived Hydrogels for 3D-Bioprinting of Ovine Aortic Valve Interstitial Cells. Thorac Cardiovasc Surg 2023. [DOI: 10.1055/s-0043-1761739] [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: 03/22/2023]
Affiliation(s)
- M. B. Immohr
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine-University, Düsseldorf, Deutschland
| | - F. Dos Santos Adrego
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine-University, Düsseldorf, Deutschland
| | - H. L. Teichert
- Department of Cardiac Surgery, Heinrich-Heine-University, Duesseldorf, Deutschland
| | - V. Schmidt
- UKD—Clinic for Cardiovascular Surgery, Düsseldorf, Deutschland
| | - M. Barth
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine-University, Düsseldorf, Deutschland
| | - Y. Sugimura
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine-University, Düsseldorf, Deutschland
| | | | | |
Collapse
|
10
|
Immohr MB, Teichert HL, Adrego FDS, Schmidt V, Barth M, Sugimura Y, Lichtenberg A, Akhyari P. 3D-Bioprinting of Ovine Aortic Valve Endothelial and Interstitial Cells for Development of Multicellular Tissue Engineered Scaffolds. Thorac Cardiovasc Surg 2023. [DOI: 10.1055/s-0043-1761800] [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: 03/22/2023]
Affiliation(s)
- M. B. Immohr
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine University, Düsseldorf, Deutschland
| | - H. L. Teichert
- Department of Cardiac Surgery, Heinrich-Heine-University, Duesseldorf, Deutschland
| | - F. Dos Santos Adrego
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine University, Düsseldorf, Deutschland
| | - V. Schmidt
- UKD—Clinic for Cardiovascular Surgery, Düsseldorf, Deutschland
| | - M. Barth
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine University, Düsseldorf, Deutschland
| | - Y. Sugimura
- Department of Cardiovascular Surgery, University Hospital of the Heinrich-Heine University, Düsseldorf, Deutschland
| | | | | |
Collapse
|
11
|
Chille EE, Strand EL, Scucchia F, Neder M, Schmidt V, Sherman MO, Mass T, Putnam HM. Energetics, but not development, is impacted in coral embryos exposed to ocean acidification. J Exp Biol 2022; 225:277171. [PMID: 35938380 DOI: 10.1242/jeb.243187] [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: 07/25/2021] [Accepted: 08/03/2022] [Indexed: 11/20/2022]
Abstract
In light of the chronic stress and mass mortality reef-building corals face under climate change, it is critical to understand the processes driving reef persistence and replenishment, including coral reproduction and development. Here we quantify gene expression and sensitivity to ocean acidification across a set of developmental stages in the rice coral, Montipora capitata. Embryos and swimming larvae were exposed to pH treatments 7.8 (Ambient), 7.6 (Low) and 7.3 (Xlow) from fertilization to 9 days post-fertilization. Embryo and larval volume, and stage-specific gene expression were compared between treatments to determine the effects of acidified seawater on early development. While there was no measurable size differentiation between pH treatments at the fertilized egg and prawn chip (9 hours post-fertilization) stages, early gastrulae and larvae raised in reduced pH treatments were significantly smaller than those raised in ambient seawater, suggesting an energetic cost to developing under low pH. However, no differentially expressed genes were found until the swimming larval stage. Notably, gene expression patterns of larvae developing at pH 7.8 and pH 7.3 were more similar than those developing at pH 7.6. Larvae from pH 7.6 showed upregulation of genes involved in cell division, regulation of transcription, lipid metabolism, and response to oxidative stress in comparison to the other two treatments. While low pH appears to increase energetic demands and trigger oxidative stress in larvae, the developmental process is robust to this at a molecular level, with the swimming larval stage reached in all pH treatments.
Collapse
Affiliation(s)
- E E Chille
- Department of Biological Sciences, University of Rhode Island, Rhode Island, USA
| | - E L Strand
- Department of Biological Sciences, University of Rhode Island, Rhode Island, USA
| | - F Scucchia
- Department of Marine Biology, The Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel.,The Interuniversity Institute of Marine Sciences, Eilat, Israel
| | - M Neder
- Department of Marine Biology, The Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel.,The Interuniversity Institute of Marine Sciences, Eilat, Israel
| | - V Schmidt
- Yale School of Medicine, Yale University, Connecticut, USA
| | - M O Sherman
- Department of Biological Sciences, University of Rhode Island, Rhode Island, USA
| | - T Mass
- Department of Marine Biology, The Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel.,Morris Kahn Marine Research Station, The Leon H. Charney School of Marine Sciences, University of Haifa, Sdot Yam, Israel
| | - H M Putnam
- Department of Biological Sciences, University of Rhode Island, Rhode Island, USA
| |
Collapse
|
12
|
Hamel P, Schmidt V. The calibration laboratories for the measurement of radon and short-lived radon decay products at the Federal Office for Radiation Protection (BfS). KERNTECHNIK 2022. [DOI: 10.1515/kern-2001-0084] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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
In order to guarantee a high level of accuracy in all areas concerned with radon and radon decay products measurement the BfS has established a quality assurance management system. A set of calibration chambers and containers was installed in the laboratories which were subsequently accredited as a German Calibration Service (DKD) Calibration Laboratory for the units of radon and the potential alpha energy concentration of its short-lived decay products. It is traced back to the national standard established at the Physikalisch-Technische Bundesanstalt (PTB), which is at the same time the national institute for science and technology, and the highest technical authority for metrology in Germany. The equipment makes possible scientific investigations as well as calibrations for the measuring quantity “concentration of Rn-222 in air” in the range between 50 Bq/m3 and 100 kBq/m3 and also for the measuring quantity “potential alpha-energy concentration” (PAEC) in the range between 2 MeV/cm3 (3.2 E-7 J/m3) and 4000 MeV/cm31 (*6 .4 E-4 J/m3).
Collapse
Affiliation(s)
- P. Hamel
- Federal Office for Radiation Protection, Department of Radiation Protection , Köpenicker Allee 120–130 , D-10318 Berlin , Germany
| | - V. Schmidt
- Federal Office for Radiation Protection, Department of Radiation Protection , Köpenicker Allee 120–130 , D-10318 Berlin , Germany
| |
Collapse
|
13
|
Schmidt V, Mellstrand Navarro C, Ottosson M, Tägil M, Christersson A, Engquist M, Sayed-Noor A, Mukka S, Wadsten M. Forecasting effects of "fast-tracks" for surgery in the Swedish national guidelines for distal radius fractures. PLoS One 2022; 17:e0260296. [PMID: 35143508 PMCID: PMC8830720 DOI: 10.1371/journal.pone.0260296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/07/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND AND PURPOSE National guidelines for treatment of distal radius fractures (DRFs) were presented in Sweden in 2021. In the guidelines, a fast-track is recommended for 4 subgroups of highly unstable DRFs. Regardless of the results of the closed reduction these are recommended for surgery within 1 week of injury. This study aims to evaluate the potential consequences of the newly presented national guidelines on incidence of surgical interventions. PATIENTS AND METHODS In all, 1,609 patients (1,635 DRFs) with primary radiographs after a DRF between 2014 and 2017 at two Swedish hospitals were included in a retrospective cohort study. An estimation was made of the percentage of patients in the historical pre-guidelines cohort, that would have been recommended early primary surgery according to the new national guidelines compared to treatment implemented without the support of these guidelines. RESULTS On a strict radiological basis, 32% (516 out of 1635) of DRFs were classified into one of the 4 defined subgroups. At 9-13 days follow-up, cast treatment was converted into delayed primary surgery in 201 cases. Out of these, 56% (112 out of 201) fulfilled the fast-track criteria and would with the new guidelines have been subject to early primary surgery. INTERPRETATION The fast-track regimen in the new guidelines, has a high likelihood of identifying the unstable fractures benefitting from early primary surgery. If the proposed Swedish national guidelines for DRF treatment are implemented, a greater proportion of fractures would be treated with early primary surgery, and a delayed surgery avoided in the majority of cases. The potential benefits in relation to possible costs when using the fast-track criteria in every day practice are still unknown.
Collapse
Affiliation(s)
- Viktor Schmidt
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå, Sweden
| | - Cecilia Mellstrand Navarro
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Department of Hand Surgery, Södersjukhuset, Stockholm, Sweden
| | - Marcus Ottosson
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå, Sweden
| | - Magnus Tägil
- Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Albert Christersson
- Department of Orthopedics, Institution of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Markus Engquist
- Department of Orthopedics, Ryhov Hospital, Jönköping, Sweden
| | - Arkan Sayed-Noor
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Sebastian Mukka
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå, Sweden
| | - Mats Wadsten
- Department of Surgical and Perioperative Sciences (Orthopedics), Umeå University, Umeå, Sweden
| |
Collapse
|
14
|
Schmidt V, Blum R, Möhrenschlager M. Biphasic bullous pemphigoid starting after first dose and boosted by second dose of mRNA-1273 vaccine in an 84-year-old female with polymorbidity and polypharmacy. J Eur Acad Dermatol Venereol 2021; 36:e88-e90. [PMID: 34606112 DOI: 10.1111/jdv.17722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- V Schmidt
- Department of Dermatology, Hochgebirgsklinik Davos, Davos Wolfgang, Switzerland.,Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
| | - R Blum
- Department of Dermatology, Inselspital, University of Bern, Bern, Switzerland
| | - M Möhrenschlager
- Department of Dermatology, Hochgebirgsklinik Davos, Davos Wolfgang, Switzerland
| |
Collapse
|
15
|
Schmidt V, Lalevée S, Ziadlou R, Oro S, Barau C, De Prost N, Nägeli M, Meier-Schiesser B, Navarini A, French L, Contassot E, Brüggen M. LB818 Diverse immune response changes during different adjuvant treatments in Epidermal Necrolysis patients. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.127] [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: 10/20/2022]
|
16
|
Möhrenschlager M, Demolli P, Schmidt V. How does atopic dermatitis in childhood and adolescence affect educational success? J Eur Acad Dermatol Venereol 2021; 35:1746. [PMID: 34418880 DOI: 10.1111/jdv.17518] [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] [Received: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 11/29/2022]
Affiliation(s)
- M Möhrenschlager
- Department of Dermatology, Hochgebirgsklinik, Davos, Switzerland
| | - P Demolli
- Department of Dermatology, Hochgebirgsklinik, Davos, Switzerland
| | - V Schmidt
- Department of Dermatology, Hochgebirgsklinik, Davos, Switzerland.,Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
| |
Collapse
|
17
|
Gauer T, Sentker T, Schmidt V, Wimmert L, Ozga A, Petersen C, Madesta F, Hofmann C, Werner R. OC-0560 Impact of 4D-CT imaging protocol on local control in SBRT of lung and liver metastases. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06967-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: 11/30/2022]
|
18
|
|
19
|
Weber A, Schmidt V, Lichtenberg A, Akhyari P. The Purinergic Signaling System Modulates the Inflammatory Response of Human Valvular Endothelial Cells. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725673] [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: 10/21/2022]
|
20
|
Weber A, Schöttler F, Schmidt V, Lichtenberg A, Akhyari P. Metformin Protects against the Degeneration of Aortic Valves. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725671] [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: 10/21/2022]
|
21
|
Katahira S, Döpp R, Sugimura Y, Barth M, Schmidt V, Selig JI, Saiki Y, Lichtenberg A, Akhyari P. Effects of PPAR-Gamma Activation on In Vivo Degeneration of Allografts in a Model of Chronic Kidney Disease. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725624] [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: 10/21/2022]
|
22
|
Weber A, Lageveen L, Lee YM, Schmidt V, Rellecke P, Sixt SU, Lichtenberg A, Akhyari P. The Course of Blood Cell-Derived Extracellular Vesicles in Patients Undergoing Surgical Aortic Valve Replacement. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725726] [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: 10/21/2022]
|
23
|
Weber A, Schöttler F, Schmidt V, Lichtenberg A, Akhyari P. Metformin Exerts Protective Effects against the Degeneration of Aortic Valves. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705356] [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]
|
24
|
Weber A, Schmidt V, Leuders P, Pfaff M, Hesse J, Schrader J, Lichtenberg A, Akhyari P. Dysregulation of ATPases Promotes the Degeneration of Aortic Valves. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705464] [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]
|
25
|
Frosini SM, Bond R, Rantala M, Grönthal T, Rankin SC, O’Shea K, Timofte D, Schmidt V, Lindsay J, Loeffler A. Genetic resistance determinants to fusidic acid and chlorhexidine in variably susceptible staphylococci from dogs. BMC Microbiol 2019; 19:81. [PMID: 31023224 PMCID: PMC6485160 DOI: 10.1186/s12866-019-1449-z] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 04/01/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Concern exists that frequent use of topically-applied fusidic acid (FA) and chlorhexidine (CHX) for canine pyoderma is driving clinically relevant resistance, despite rare description of FA and CHX genetic resistance determinants in canine-derived staphylococci. This study aimed to determine minimum inhibitory concentrations (MICs) and investigate presence of putative resistance determinants for FA and CHX in canine-derived methicillin-resistant (MR) and -susceptible (MS) staphylococci. Plasmid-mediated resistance genes (fusB, fusC, fusD, qacA/B, smr; PCR) and MICs (agar dilution) of FA and CHX were investigated in 578 staphylococci (50 MR S. aureus [SA], 50 MSSA, 259 MR S. pseudintermedius [SP], 219 MSSP) from Finland, U.S.A., North (NUK) and South-East U.K. (SEUK) and Germany. In all isolates with FA MIC ≥64 mg/L (n = 27) fusA and fusE were amplified and sequenced. RESULTS FA resistance determinants (fusA mutations n = 24, fusB n = 2, fusC n = 36) were found in isolates from all countries bar U.S.A. and correlated with higher MICs (≥1 mg/L), although 4 SP isolates had MICs of 0.06 mg/L despite carrying fusC. CHX MICs did not correlate with qacA/B (n = 2) and smr (n = 5), which were found in SEUK SA, and SP from NUK and U.S.A. CONCLUSIONS Increased FA MICs were frequently associated with fusA mutations and fusC, and this is the first account of fusB in SP. Despite novel description of qacA/B in SP, gene presence did not correlate with CHX MIC. Selection pressure from clinical use might increase prevalence of these genetic determinants, but clinical significance remains uncertain in relation to high skin concentrations achieved by topical therapy.
Collapse
Affiliation(s)
- S-M Frosini
- Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - R. Bond
- 0000 0004 0425 573Xgrid.20931.39Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA UK
| | - M. Rantala
- 0000 0004 0410 2071grid.7737.4Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - T. Grönthal
- 0000 0004 0410 2071grid.7737.4Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, 00014 Helsinki, Finland
| | - S. C. Rankin
- 0000 0004 1936 8972grid.25879.31Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3850 Spruce Street, Philadelphia, PA 19104 USA
| | - K. O’Shea
- 0000 0004 1936 8972grid.25879.31Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3850 Spruce Street, Philadelphia, PA 19104 USA
| | - D. Timofte
- 0000 0004 1936 8470grid.10025.36Institute of Veterinary Science, University of Liverpool, Chester High Road, Neston, CH64 7TE UK
| | - V. Schmidt
- 0000 0004 1936 8470grid.10025.36Institute of Veterinary Science, University of Liverpool, Chester High Road, Neston, CH64 7TE UK
| | - J. Lindsay
- 0000 0000 8546 682Xgrid.264200.2Institute of Infection and Immunity, St George’s, University of London, Cranmer Terrace, London, SW17 0RE UK
| | - A. Loeffler
- 0000 0004 0425 573Xgrid.20931.39Department of Clinical Sciences and Services, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA UK
| |
Collapse
|
26
|
Neumann M, Abdallah B, Holzer L, Willot F, Schmidt V. Stochastic 3D Modeling of Three-Phase Microstructures for Predicting Transport Properties: A Case Study. Transp Porous Media 2019. [DOI: 10.1007/s11242-019-01240-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
27
|
Peuker U, Leißner T, Weber A, Rafaja D, Schmidt V. Mehrdimensionale Eigenschaften von Partikelsystemen - ganzheitliche Eigenschaftsfunktion (PE). CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855172] [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: 11/11/2022]
Affiliation(s)
- U. A. Peuker
- TU Bergakademie Freiberg; Institut für Mechanische Verfahrenstechnik und Aufbereitungstechnik; Agricolastraße 1 09599 Freiberg Deutschland
| | - T. Leißner
- TU Bergakademie Freiberg; Institut für Mechanische Verfahrenstechnik und Aufbereitungstechnik; Agricolastraße 1 09599 Freiberg Deutschland
| | - A. P. Weber
- TU Clausthal; Institut für Mechanische Verfahrenstechnik; Leibnitzstraße 19 38678 Clausthal-Zellerfeld Deutschland
| | - D. Rafaja
- TU Bergakademie Freiberg; Institut für Werkstoffwissenschaft; Gustav-Zeuner-Straße 5 09599 Freiberg Deutschland
| | - V. Schmidt
- Universität Ulm; Institut für Stochastik; Helmholtzstraße 18 89069 Ulm Deutschland
| |
Collapse
|
28
|
Kuchler K, Prifling B, Schmidt D, Markötter H, Manke I, Bernthaler T, Knoblauch V, Schmidt V. Analysis of the 3D microstructure of experimental cathode films for lithium-ion batteries under increasing compaction. J Microsc 2018; 272:96-110. [PMID: 30088276 DOI: 10.1111/jmi.12749] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 03/15/2018] [Accepted: 07/22/2018] [Indexed: 11/28/2022]
Abstract
It is well known that the microstructure of electrodes in lithium-ion batteries has an immense impact on their overall performance. The compaction load during the calendering process mainly determines the resulting morphology of the electrode. Therefore, NCM-based cathode films from uncompacted (0 MPa) to most highly compacted (1000 MPa) were manufactured, which corresponds to global porosities ranging from about 50% to 18%. All samples have been imaged using synchrotron tomography. These image data allow an extensive analysis of the 3D cathode microstructure with respect to increasing compaction. In addition, the numerous microstructural changes can be quantified using several characteristics describing the morphology of cathode samples. Three characteristics, namely global porosity, global volume fraction of active material and mean cathode thickness, are compared to experimental results. In addition, the microstructural analysis by means of 3D image data and image processing techniques allows the investigation of characteristics which are hard or impossible to ascertain by experiments, for example the continuous pore size distribution and the sphericity distribution of NCM-particles. Finally, the dependency of microstructural characteristics on compaction load is described by the help of parametric probability distributions. This approach can be used, for example, to predict the distribution of a certain characteristic for an 'unknown' compaction load, which is a valuable information with regard to the optimization and development process of NCM-cathodes in lithium-ion batteries. LAY DESCRIPTION It is well known that the microstructure of electrodes in lithium-ion batteries has an immense impact on their overall performance. The manufacturing of the batteries includes the so-called calendering, where the electrodes are compressed with a certain pressure, which is called compaction load. This process step mainly determines the resulting morphology of the electrode and thus the properties of the battery. Therefore, eight cathodes with different compaction loads were manufactured and imaged by synchrotron tomography, which leads to 3D images containing detailed information about the inner structure of the cathode. This image data allows an extensive analysis of the 3D cathode microstructure with respect to increasing compaction. In order to quantify the microstructural changes we use several characteristics describing diverse properties of the morphology. Furthermore, the 3D image data can be used for the computation of characteristics which can not be determined by experiments. Therefore, 3D image data allows us to understand how the microstructure of cathodes is influenced by the compaction load. Finally, we are able to predict the distribution of a certain characteristic for arbitrary compaction loads. This information is valuable with regard to the development of improved lithium-ion batteries.
Collapse
Affiliation(s)
- K Kuchler
- Institute of Stochastics, Ulm University, Ulm, Germany
| | - B Prifling
- Institute of Stochastics, Ulm University, Ulm, Germany
| | - D Schmidt
- Robert Bosch Battery Systems GmbH, Stuttgart, Germany
| | - H Markötter
- Materials Research Institute, Aalen University, Aalen, Germany
| | - I Manke
- Materials Research Institute, Aalen University, Aalen, Germany
| | - T Bernthaler
- Institute of Applied Materials, Helmholtz-Zentrum Berlin, Berlin, Germany
| | - V Knoblauch
- Institute of Applied Materials, Helmholtz-Zentrum Berlin, Berlin, Germany
| | - V Schmidt
- Institute of Stochastics, Ulm University, Ulm, Germany
| |
Collapse
|
29
|
Machado Charry E, Neumann M, Lahti J, Schennach R, Schmidt V, Zojer K. Pore space extraction and characterization of sack paper using μ-CT. J Microsc 2018; 272:35-46. [PMID: 29984831 DOI: 10.1111/jmi.12730] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 12/11/2017] [Revised: 05/14/2018] [Accepted: 06/10/2018] [Indexed: 11/28/2022]
Abstract
We show that attenuation X-ray microcomputed tomography (μ-CT) offers a route to extract the three-dimensional pore space of paper reliably enough to distinguish samples of the same kind of paper. Here, we consider two sack kraft papers for cement bags with different basis weights and thicknesses. Sample areas of approximately 5 mm2 with a resolution of 1.5 μm are considered, i.e. sizes that exceed sample areas of 2 mm2 for which the pore structure was previously studied in the literature. The image segmentation is based on indicator kriging as a local method that removes ambiguities in assigning voxels as pore or as fibre. The microstructures of the two samples are statistically compared in terms of descriptors such as sheet thickness, porosity, fractions of externally accessible pores and mean geodesic tortuosity. We demonstrate that a quantitative comparison of samples in terms of porosity and thickness requires a common definition of the sheet surfaces. Finally, the statistical pore space analysis based on the μ-CT scans reliably reveals structural differences between the two paper samples, but only when several descriptors are used. LAY DESCRIPTION This paper is a seemingly abundant material. Its intrinsic porosity enables a vast number of commercial applications. Particularly packing products, e.g. cement bags, often incorporate sack kraft paper due to its high porosity and its additional mechanical strength. A direct quantification of the porosity of sack kraft papers is, hence, particularly desirable. However, experimental quantification of paper porosity or its pore network properties is difficult and often highly indirect. A nondestructive statistical analysis of the 3D microstructure holds the promise to directly assess the pores. In particular, X-ray microcomputed tomography (μ-CT), frequently with sub-μm resolution, has been established as a method to study the fibre and pore structure of paper. The question arises, whether statistical analysis of the microstructure based on μ-CT imaging is sufficient to reliably distinguish between different sack kraft papers. Here, we explore whether the pore structure of paper can be extracted and statistically analysed for larger sample areas despite the fact that a larger sample size directly translates into a lower resolution of the μ-CT scan. We expect that a large sample size increases the region of interest on the basis of which samples can be better distinguished. A lowered resolution poses a severe challenge for the reliable identification of voxel data as pores or as fibres, because the contrast between paper fibres (made of cellulose) and air, which is established due to X-ray absorption, is weak. We show that we can reliably assign each voxel by using an indicator kriging as a two-step method. This method performs an initial voxel identification based on the overall distribution of measured grey values and refines the identification by inspecting the local environment of each voxel. For the pore space extracted in such a way, we can then compute quantities that are related to the geometry and connectivity properties of the pores. Furthermore, we address a paper-born challenge for such an analysis, i.e. we cannot always unambiguously tell whether a pore is located inside the paper sheet or at the surface of the paper. The way the paper surfaces are extracted from the microstructure decisively determines the final specifications of the predicted properties. A significant distinction of the samples is only possible when comparing the properties of the pore network.
Collapse
Affiliation(s)
- E Machado Charry
- Institute of Solid State Physics and NAWI Graz, Graz University of Technology, Graz, Austria.,Christian Doppler Laboratory for Mass Transport through Paper, Graz University of Technology, Graz, Austria
| | - M Neumann
- Institute of Stochastics, Ulm University, Ulm, Germany
| | - J Lahti
- Institute for Paper, Pulp, and Fiber Technology, Graz University of Technology, Graz, Austria
| | - R Schennach
- Institute of Solid State Physics and NAWI Graz, Graz University of Technology, Graz, Austria.,Christian Doppler Laboratory for Mass Transport through Paper, Graz University of Technology, Graz, Austria
| | - V Schmidt
- Institute of Stochastics, Ulm University, Ulm, Germany
| | - K Zojer
- Institute of Solid State Physics and NAWI Graz, Graz University of Technology, Graz, Austria.,Christian Doppler Laboratory for Mass Transport through Paper, Graz University of Technology, Graz, Austria
| |
Collapse
|
30
|
Affiliation(s)
- V. Schmidt
- Charité - Universitätsmedizin Berlin; Freie Universität Berlin; Humboldt-Universität zu Berlin, and Berlin Institute of Health; Institute of Vegetative Physiology; Berlin Germany
| | - K. M. Kirschner
- Charité - Universitätsmedizin Berlin; Freie Universität Berlin; Humboldt-Universität zu Berlin, and Berlin Institute of Health; Institute of Vegetative Physiology; Berlin Germany
| |
Collapse
|
31
|
Stolze J, Schmidt V, Böhme J, Sachse K, Cramer K, Krautwald-Junghanns ME. Wirksamkeit von Doxycyclin bei Chlamydiosen in Taubenbeständen. Tierarztl Prax Ausg K 2018. [DOI: 10.1055/s-0038-1623734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Zusammenfassung
Gegenstand und Ziel: Untersuchung der klinischen Wirksamkeit von über das Trinkwasser verabreichtem Doxycyclin zur Behandlung der Chlamydiose bei Briefund Rassetauben (Columba livia f. domestica) in infizierten, klinisch erkrankten Beständen unter Praxisbedingungen. Material und Methoden: Im Rahmen einer kontrollierten Feldstudie zur klinischen Wirksamkeit wurden 13 Taubenbestände mit klinisch manifester Ornithose über 25 Tage mit einer neuartigen Formulierung von Doxycyclin über das Trinkwasser behandelt. In jedem der Bestände war die Infektion mit Chlamydia psittaci zuvor anhand molekularbiologischer Untersuchung von Organmaterial zur pathologischen Untersuchung eingesandter Tiere festgestellt worden. Zur Überprüfung des Therapieerfolgs wurden am 25. Tag der Behandlung und 7 Tage nach Abschluss der Therapie Dreifachtupfer von 10 Tieren jedes Bestandes genommen und mittels PCR untersucht. Ferner fanden wiederholt Einzeltier- und täglich Herdenuntersuchungen in den Beständen statt. Ergebnisse: Der Erreger Chlamydia psittaci sowie andere, in sechs der 13 Bestände zusätzlich dokumentierte atypische Chlamydienspezies ließen sich bei den genannten Untersuchungen nicht mehr nachweisen. Zudem wurde in jedem Bestand ein Verschwinden der klinischen Krankheitssymptomatik erreicht. Schlussfolgerung: Die Anwendung von Doxycyclin im beschriebenen Therapieregime erwies sich als wirksam zur Behandlung der Ornithose. Darüber hinaus konnte eine hervorragende Akzeptanz und Verträglichkeit der eingesetzten Formulierung in praxi bestätigt werden.
Collapse
|
32
|
Abstract
ZusammenfassungDie tierärztliche Behandlung und Betreuung von Taubenbeständen bedarf spezifischen Wissens sowohl über die Haltung von Tauben bzw. die Gegebenheiten eines Taubenbestandes als auch über häufige Krankheiten und wichtige diagnostische sowie therapeutische Maßnahmen. Bedeutung hat in diesem Kontext die Unterscheidung zwischen Rasse-, Fleisch- und Brieftauben, also lebensmittelliefernden oder nicht lebensmittelliefernden Tieren. Der Beitrag gibt eine Übersicht über zu berücksichtigende Besonderheiten der Spezies Taube, häufig vorkommende Erkrankungen sowie gängige therapeutische und prophylaktische Maßnahmen.
Collapse
|
33
|
Toshmatova M, Nakanishi S, Sugimura Y, Schmidt V, Lichtenberg A, Assmann A, Akhyari P. Impact of Laminin Coating on the Autologous In Vivo Recellularization of Decellularized Aortic Grafts. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628072] [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: 10/28/2022]
Affiliation(s)
- M. Toshmatova
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - S. Nakanishi
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - Y. Sugimura
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - V. Schmidt
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Lichtenberg
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Assmann
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - P. Akhyari
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| |
Collapse
|
34
|
Weber A, Büttner A, Cardone L, Schmidt V, Rellecke P, Sixt S, Lichtenberg A, Akhyari P. Evaluation of OPN as a Marker to Predict Adverse Outcomes after Aortic Valve Replacement. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627991] [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: 10/28/2022]
Affiliation(s)
- A. Weber
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - A. Büttner
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - L. Cardone
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - V. Schmidt
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - P. Rellecke
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - S. Sixt
- Clinic for Anesthesiology, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - A. Lichtenberg
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - P. Akhyari
- Department of Cardiovascular Surgery, Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| |
Collapse
|
35
|
Assmann A, Schmidt V, Lepke C, Sugimura Y, Lichtenberg A, Akhyari P. A Rat Model to Examine the Degeneration of Cardiovascular Grafts under Enhanced Oxidative Stress. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628012] [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: 10/28/2022]
Affiliation(s)
- A. Assmann
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - V. Schmidt
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - C. Lepke
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - Y. Sugimura
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Lichtenberg
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - P. Akhyari
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| |
Collapse
|
36
|
Eggert S, Gonzalez AC, Thomas C, Schilling S, Schwarz SM, Tischer C, Adam V, Strecker P, Schmidt V, Willnow TE, Hermey G, Pietrzik CU, Koo EH, Kins S. Dimerization leads to changes in APP (amyloid precursor protein) trafficking mediated by LRP1 and SorLA. Cell Mol Life Sci 2017; 75:301-322. [PMID: 28799085 DOI: 10.1007/s00018-017-2625-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/17/2017] [Accepted: 08/08/2017] [Indexed: 12/22/2022]
Abstract
Proteolytic cleavage of the amyloid precursor protein (APP) by α-, β- and γ-secretases is a determining factor in Alzheimer's disease (AD). Imbalances in the activity of all three enzymes can result in alterations towards pathogenic Aβ production. Proteolysis of APP is strongly linked to its subcellular localization as the secretases involved are distributed in different cellular compartments. APP has been shown to dimerize in cis-orientation, affecting Aβ production. This might be explained by different substrate properties defined by the APP oligomerization state or alternatively by altered APP monomer/dimer localization. We investigated the latter hypothesis using two different APP dimerization systems in HeLa cells. Dimerization caused a decreased localization of APP to the Golgi and at the plasma membrane, whereas the levels in the ER and in endosomes were increased. Furthermore, we observed via live cell imaging and biochemical analyses that APP dimerization affects its interaction with LRP1 and SorLA, suggesting that APP dimerization modulates its interplay with sorting molecules and in turn its localization and processing. Thus, pharmacological approaches targeting APP oligomerization properties might open novel strategies for treatment of AD.
Collapse
Affiliation(s)
- Simone Eggert
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany.
| | - A C Gonzalez
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany.,Institute for Biochemistry, Christian Albrechts University Kiel, 24118, Kiel, Germany
| | - C Thomas
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany
| | - S Schilling
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany
| | - S M Schwarz
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany.,Institute for Medical Virology, University of Frankfurt, 60596, Frankfurt, Germany
| | | | - V Adam
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany
| | - P Strecker
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany
| | - V Schmidt
- Max Delbrueck Center for Molecular Medicine, Berlin, Germany
| | - T E Willnow
- Max Delbrueck Center for Molecular Medicine, Berlin, Germany
| | - G Hermey
- Institute for Molecular and Cellular Cognition, Center for Molecular University Medical Center Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - C U Pietrzik
- Institute for Pathobiochemistry, Molecular Neurodegeneration, University Medical Center of the Johannes Gutenberg-University Mainz, 55099, Mainz, Germany
| | - E H Koo
- Department of Neuroscience, University of California San Diego (UCSD), La Jolla, CA, 92093-0662, USA
| | - Stefan Kins
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, 67663, Kaiserslautern, Germany.
| |
Collapse
|
37
|
Handl L, Torbahn L, Spettl A, Schmidt V, Kwade A. Structural analysis and tracking of micron-sized glass particles during shear deformation: A study based on time-resolved tomographic data. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
38
|
Hempelmann N, Hejny V, Pretz J, Stephenson E, Augustyniak W, Bagdasarian Z, Bai M, Barion L, Berz M, Chekmenev S, Ciullo G, Dymov S, Etzkorn FJ, Eversmann D, Gaisser M, Gebel R, Grigoryev K, Grzonka D, Guidoboni G, Hanraths T, Heberling D, Hetzel J, Hinder F, Kacharava A, Kamerdzhiev V, Keshelashvili I, Koop I, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Mchedlishvili D, Mey S, Müller F, Nass A, Nikolaev NN, Pesce A, Prasuhn D, Rathmann F, Rosenthal M, Saleev A, Schmidt V, Semertzidis Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Stockhorst H, Ströher H, Tabidze M, Tagliente G, Talman R, Thörngren Engblom P, Trinkel F, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wrońska A, Wüstner P, Zuprański P, Żurek M. Phase Locking the Spin Precession in a Storage Ring. Phys Rev Lett 2017; 119:014801. [PMID: 28731757 DOI: 10.1103/physrevlett.119.014801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring in order to control both the precession rate (≈121 kHz) and the phase of the horizontal polarization component. Real time synchronization with a radio frequency (rf) solenoid made possible the rotation of the polarization out of the horizontal plane, yielding a demonstration of the feedback method to manipulate the polarization. In particular, the rotation rate shows a sinusoidal function of the horizontal polarization phase (relative to the rf solenoid), which was controlled to within a 1 standard deviation range of σ=0.21 rad. The minimum possible adjustment was 3.7 mHz out of a revolution frequency of 753 kHz, which changes the precession rate by 26 mrad/s. Such a capability meets a requirement for the use of storage rings to look for an intrinsic electric dipole moment of charged particles.
Collapse
Affiliation(s)
- N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - L Barion
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - F-J Etzkorn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - M Gaisser
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - T Hanraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Müller
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute for Physics and Technology, 141700 Dolgoprudny, Russia
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Samara National Research University, 443086 Samara, Russia
| | - V Schmidt
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-1), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | | | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-2), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
39
|
Harris L, Wilfong J, Schmidt V, Thang N. EFFECTS OF EMPATHY CLUBS ON HEALTH CARE AMONG HIV-AFFECTED GRANDPARENT-HEADED HOUSEHOLDS IN VIETNAM. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1880] [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: 11/14/2022] Open
Affiliation(s)
- L.M. Harris
- Kent School of Social Work, University of Louisville, Louisville, Kentucky,
| | - J. Wilfong
- Kent School of Social Work, University of Louisville, Louisville, Kentucky,
| | - V. Schmidt
- Kent School of Social Work, University of Louisville, Louisville, Kentucky,
| | - N. Thang
- Cooperation and Development (CESVI), Hai Phong, Viet Nam
| |
Collapse
|
40
|
Gómez-Morales MA, Gárate T, Blocher J, Devleesschauwer B, Smit GSA, Schmidt V, Perteguer MJ, Ludovisi A, Pozio E, Dorny P, Gabriël S, Winkler AS. Present status of laboratory diagnosis of human taeniosis/cysticercosis in Europe. Eur J Clin Microbiol Infect Dis 2017; 36:2029-2040. [PMID: 28669015 PMCID: PMC5653711 DOI: 10.1007/s10096-017-3029-1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 05/23/2017] [Indexed: 11/08/2022]
Abstract
Human cysticercosis (CC) is a parasitic zoonosis caused by the larval stage (cyst) of the Taenia solium. Cysts can establish in the human central nervous system (neurocysticercosis, NCC) and other organs and tissues; they also develop in pigs, the natural intermediate host. Human taeniosis may be caused by T. solium, Taenia saginata and Taenia asiatica tapeworms; these infections are usually asymptomatic, but show a significant relevance as they perpetuate the parasites’ life cycle, and, in the case of T. solium, they are the origin of (N)CC. In European Union (EU) member states and associated countries, the occurrence of autochthonous T. solium cases is debated, and imported cases have significantly increased lately; the status of T. asiatica has been never reported, whereas T. saginata is prevalent and causes an economic impact due to condemned carcasses. Based on their effects on the EU society, the specific diagnosis of these pathologies is relevant for their prevention and control. The aims of this study were to know the diagnostic tests used in European laboratories for human taeniosis/cysticercosis by means of a questionnaire, to determine potential gaps in their detection, and to obtain preliminary data on the number of diagnosed taeniosis/CC cases.
Collapse
Affiliation(s)
- M A Gómez-Morales
- Department of Infectious Diseases, Istituto Superiore di Sanità, viale Regina Elena 299, 00161, Rome, Italy.
| | - T Gárate
- Instituto de Salud Carlos III, Centro Nacional de Microbiología, Majadahonda, 28220, Madrid, Spain.
| | - J Blocher
- Institute of Acute Neurology, Academic Teaching Hospital Feldkirch, Carinagasse 47, 6800, Feldkirch, Austria
| | - B Devleesschauwer
- Department of Public Health and Surveillance, Scientific Institute of Public Health (WIV-ISP), Rue Juliette Wytsmanstraat 14, 1050, Brussels, Belgium
| | - G S A Smit
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium.,Faculty of Veterinary Medicine, Department of Virology, Parasitology and Immunology, Ghent University, Merelbeke, Belgium.,Institute of Health and Society (IRSS), Université Catholique de Louvain, Brussels, Belgium
| | - V Schmidt
- Department of Neurology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany.,Centre for Global Health, Institute of Health and Society, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway
| | - M J Perteguer
- Instituto de Salud Carlos III, Centro Nacional de Microbiología, Majadahonda, 28220, Madrid, Spain
| | - A Ludovisi
- Department of Infectious Diseases, Istituto Superiore di Sanità, viale Regina Elena 299, 00161, Rome, Italy
| | - E Pozio
- Department of Infectious Diseases, Istituto Superiore di Sanità, viale Regina Elena 299, 00161, Rome, Italy
| | - P Dorny
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - S Gabriël
- Faculty of Veterinary Medicine, Department of Veterinary Public Health and Food Safety, Ghent University, Ghent, Belgium
| | - A S Winkler
- Department of Neurology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany. .,Centre for Global Health, Institute of Health and Society, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway.
| |
Collapse
|
41
|
Starck JM, Neul A, Schmidt V, Kolb T, Franz-Guess S, Balcecean D, Pees M. Morphology and Morphometry of the Lung in Corn Snakes (Pantherophis guttatus) Infected with Three Different Strains of Ferlavirus. J Comp Pathol 2017; 156:419-435. [PMID: 28284556 DOI: 10.1016/j.jcpa.2017.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/30/2017] [Accepted: 02/03/2017] [Indexed: 11/20/2022]
Abstract
Ophidian paramyxovirus (ferlavirus) is a global threat to reptilian sauropsids in herpetological collections, with occasional but fatal effects. This study characterizes the effects of three different genetic strains of ferlavirus on the dynamic changes of histology and morphometry of the lung of corn snakes (Pantherophis guttatus). Lungs from 42 corn snakes were either sham-infected or infected experimentally under standardized conditions. From 4 to 49 days after intratracheal inoculation, the lungs were examined qualitatively and quantitatively. Progressive microscopical changes were seen in the lung. Initially, increased numbers of heterophils were observed in the interstitium followed by proliferation and vacuolation of epithelial cells lining faveoli. Electron microscopy revealed loss of type-I pneumocytes, hyperplasia of type-II pneumocytes, and interstitial infiltrates of heterophils and mononuclear cells. With progression of disease the respiratory epithelium was initially overgrown by transformed type-II pneumocytes and later became multilayered. The results of the study suggest that the respiratory capacity of the lungs declines with disease development. The dynamics of disease development and histopathology differed in snakes infected with different ferlavirus genogroups. Animals infected with virus genogroup B developed histopathological changes and morphometric changes more rapidly and of greater intensity than snakes infected with viruses from genogroups A or C.
Collapse
Affiliation(s)
- J M Starck
- Department of Biology II, Biocenter, University of Munich, Großhadernerstr. 2, Planegg-Martinsried, Germany.
| | - A Neul
- Clinic for Birds and Reptiles, University of Leipzig, An den Tierkliniken 17, Leipzig, Germany
| | - V Schmidt
- Clinic for Birds and Reptiles, University of Leipzig, An den Tierkliniken 17, Leipzig, Germany
| | - T Kolb
- Department of Biology II, Biocenter, University of Munich, Großhadernerstr. 2, Planegg-Martinsried, Germany
| | - S Franz-Guess
- Department of Biology II, Biocenter, University of Munich, Großhadernerstr. 2, Planegg-Martinsried, Germany
| | - D Balcecean
- Department of Biology II, Biocenter, University of Munich, Großhadernerstr. 2, Planegg-Martinsried, Germany
| | - M Pees
- Clinic for Birds and Reptiles, University of Leipzig, An den Tierkliniken 17, Leipzig, Germany
| |
Collapse
|
42
|
König D, Schmidt V. Imbedded and non-imbedded stationary characteristics of queueing systems with varying service rate and point processes. J Appl Probab 2016. [DOI: 10.2307/3212969] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this paper a unified approach is used for proving relationships between customer-stationary and time-stationary characteristics of service systems with varying service rate and point processes. This approach is based on an intensity conservation principle for general stationary continuous-time processes with imbedded stationary marked point processes. It enables us to work under weaker independence assumptions than usual in queueing theory.
Collapse
|
43
|
König D, Schmidt V. Stochastic inequalities between customer-stationary and time-stationary characteristics of queueing systems with point processes. J Appl Probab 2016. [DOI: 10.2307/3212970] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
By means of a general intensity conservation principle for stationary processes with imbedded marked point processes (PMP) stochastic inequalities are proved between customer-stationary and time-stationary characteristics of queueing systems G/G/s/r.
Collapse
|
44
|
Lodrini M, Poschmann G, Schmidt V, Wünschel J, Dreidax D, Witt O, Höfer T, Meyer HE, Stühler K, Eggert A, Deubzer HE. The MCM complex is a critical node in the miR-183 signaling network of MYCN-amplified neuroblastoma cells. Klin Padiatr 2016. [DOI: 10.1055/s-0036-1582515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
45
|
Hirsch C, Neuhäuser D, Gloaguen C, Schmidt V. First Passage Percolation on Random Geometric Graphs and an Application to Shortest-Path Trees. ADV APPL PROBAB 2016. [DOI: 10.1239/aap/1435236978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We consider Euclidean first passage percolation on a large family of connected random geometric graphs in the d-dimensional Euclidean space encompassing various well-known models from stochastic geometry. In particular, we establish a strong linear growth property for shortest-path lengths on random geometric graphs which are generated by point processes. We consider the event that the growth of shortest-path lengths between two (end) points of the path does not admit a linear upper bound. Our linear growth property implies that the probability of this event tends to zero sub-exponentially fast if the direct (Euclidean) distance between the endpoints tends to infinity. Besides, for a wide class of stationary and isotropic random geometric graphs, our linear growth property implies a shape theorem for the Euclidean first passage model defined by such random geometric graphs. Finally, this shape theorem can be used to investigate a problem which is considered in structural analysis of fixed-access telecommunication networks, where we determine the limiting distribution of the length of the longest branch in the shortest-path tree extracted from a typical segment system if the intensity of network stations converges to 0.
Collapse
|
46
|
Abstract
The almost-sure connectivity of the Euclidean minimal spanning forest MSF(X) on a homogeneous Poisson point process X ⊂ ℝd is an open problem for dimension d>2. We introduce a descending family of graphs (Gn)n≥2 that can be seen as approximations to the MSF in the sense that MSF(X)=∩n=2∞Gn(X). For n=2, one recovers the relative neighborhood graph or, in other words, the β-skeleton with β=2. We show that almost-sure connectivity of Gn(X) holds for all n≥2, all dimensions d≥2, and also point processes X more general than the homogeneous Poisson point process. In particular, we show that almost-sure connectivity holds if certain continuum percolation thresholds are strictly positive or, more generally, if almost surely X does not admit generalized descending chains.
Collapse
|
47
|
Butterweck G, Schmidt V, Buchröder H, Hugi R, Hohmann E, Foerster E, Mayer S. Reference instruments based on spectrometric measurement with Lucas Cells. Radiat Prot Dosimetry 2015; 167:298-301. [PMID: 25948825 DOI: 10.1093/rpd/ncv266] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The Bundesamt für Strahlenschutz (Berlin, Germany) and the Paul Scherrer Institute (Villigen, Switzerland) both operate accredited calibration laboratories for radon gas activity concentration. Both the institutions use Lucas Cells as detector in their reference instrumentation due to the low dependence of this detector type on variations in environmental conditions. As a further measure to improve the quality of the reference activity concentration, a spectrometric method of data evaluation has been applied. The electric pulses from the photomultiplier tube coupled to the Lucas Cells are subjected to a pulse height analysis. The stored pulse height spectra are analysed retrospectively to compensate for fluctuations in the electric parameters of the instrumentation during a measurement. The reference instrumentation of both the laboratories is described with the respective spectrum evaluation procedures. The methods of obtaining traceability to the primary calibration laboratories of Germany and Switzerland and data of performance tests are presented.
Collapse
Affiliation(s)
| | - V Schmidt
- Bundesamt für Strahlenschutz, Berlin, Germany
| | - H Buchröder
- Bundesamt für Strahlenschutz, Berlin, Germany
| | - R Hugi
- Paul Scherrer Institut, Villigen, Switzerland
| | - E Hohmann
- Paul Scherrer Institut, Villigen, Switzerland
| | - E Foerster
- Bundesamt für Strahlenschutz, Berlin, Germany
| | - S Mayer
- Paul Scherrer Institut, Villigen, Switzerland
| |
Collapse
|
48
|
Tötzke C, Manke I, Gaiselmann G, Bohner J, Müller BR, Kupsch A, Hentschel MP, Schmidt V, Banhart J, Lehnert W. A dedicated compression device for high resolution X-ray tomography of compressed gas diffusion layers. Rev Sci Instrum 2015; 86:043702. [PMID: 25933863 DOI: 10.1063/1.4918291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present an experimental approach to study the three-dimensional microstructure of gas diffusion layer (GDL) materials under realistic compression conditions. A dedicated compression device was designed that allows for synchrotron-tomographic investigation of circular samples under well-defined compression conditions. The tomographic data provide the experimental basis for stochastic modeling of nonwoven GDL materials. A plain compression tool is used to study the fiber courses in the material at different compression stages. Transport relevant geometrical parameters, such as porosity, pore size, and tortuosity distributions, are exemplarily evaluated for a GDL sample in the uncompressed state and for a compression of 30 vol.%. To mimic the geometry of the flow-field, we employed a compression punch with an integrated channel-rib-profile. It turned out that the GDL material is homogeneously compressed under the ribs, however, much less compressed underneath the channel. GDL fibers extend far into the channel volume where they might interfere with the convective gas transport and the removal of liquid water from the cell.
Collapse
Affiliation(s)
- C Tötzke
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - I Manke
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | | | - J Bohner
- Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B R Müller
- BAM Bundesanstalt für Materialforschung und -Prüfung, 12200 Berlin, Germany
| | - A Kupsch
- BAM Bundesanstalt für Materialforschung und -Prüfung, 12200 Berlin, Germany
| | - M P Hentschel
- BAM Bundesanstalt für Materialforschung und -Prüfung, 12200 Berlin, Germany
| | | | - J Banhart
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - W Lehnert
- Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
49
|
Schmidt V, Sikasunge CS, Odongo-Aginya E, Simukoko C, Mwanjali G, Alarakol S, Ovuga E, Matuja W, Kihamia C, Löscher T, Winkler AS, Bretzel G. Taenia solium metacestode preparation in rural areas of sub-Saharan Africa: a source for diagnosis and research on cysticercosis. Afr Health Sci 2015; 15:58-67. [PMID: 25834531 DOI: 10.4314/ahs.v15i1.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Taenia solium metacestodes/cysts obtained from pig carcasses constitute a primary source for diagnostic tools used for the detection of human cysticercosis. Data on T. solium cyst preparation in Africa is still scarce but required to establish independent reference laboratories. OBJECTIVES The aim of the present study is a) to present the likely yield of T. solium cyst material by the use of two different preparation methods in the field and b) to investigate its suitability for immunodiagnosis of human cysticercosis. METHODS In Zambia, Uganda and Tanzania 670 pigs were screened for T. solium infection. Cysts were prepared by 'shaking method' and 'washing method'. Generated crude antigens were applied in a standard western blot assay. RESULTS 46 out of 670 pigs (6.9%) were found positive for T. solium (Zambia: 12/367, 3.3%; Uganda: 11/217, 5.1%; Tanzania 23/86, 26.7%). Mean values of 77.7 ml whole cysts, 61.8 ml scolices/membranes and 10.9 ml cyst fluid were obtained per pig. Suitability of collected material for the use as crude antigen and molecular diagnostic techniques was demonstrated. CONCLUSION This study clearly shows that T. solium cyst preparation in African settings by simple field methods constitutes an effective way to obtain high quality material as source for diagnostic tools and research purposes.
Collapse
Affiliation(s)
- V Schmidt
- Department of Infectious Diseases and Tropical Medicine (DITM), University Hospital, Ludwig-Maximilians University Munich, Munich, Germany
| | - C S Sikasunge
- Department of Paraclinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - E Odongo-Aginya
- Department of Microbiology and Immunology, Gulu University, Gulu, Uganda
| | - C Simukoko
- Department of Paraclinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - G Mwanjali
- Department of Parasitology and Medical Entomology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - S Alarakol
- Department of Mental Health, Gulu University, Gulu, Uganda
| | - E Ovuga
- Department of Mental Health, Gulu University, Gulu, Uganda
| | - W Matuja
- Department of Neurology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - C Kihamia
- Department of Parasitology and Medical Entomology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - T Löscher
- Department of Infectious Diseases and Tropical Medicine (DITM), University Hospital, Ludwig-Maximilians University Munich, Munich, Germany
| | - A S Winkler
- Department of Neurology, Technical University of Munich, Munich, Germany
| | - G Bretzel
- Department of Infectious Diseases and Tropical Medicine (DITM), University Hospital, Ludwig-Maximilians University Munich, Munich, Germany
| |
Collapse
|
50
|
Miernik B, Schmidt V, Technau-Hafsi K, Kern JS, Meiss F. Alitretinoin in the treatment of palmoplantar mycosis fungoides: a new and promising therapeutic approach. Clin Exp Dermatol 2014; 40:445-7. [DOI: 10.1111/ced.12516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2014] [Indexed: 11/28/2022]
Affiliation(s)
- B. Miernik
- Department of Dermatology; University Medical Center Freiburg; Hauptstraße 7 D-79104 Freiburg Germany
| | - V. Schmidt
- Tumor Biology Centre Freiburg; Breisacher Straße 117 D-79106 Freiburg Germany
| | - K. Technau-Hafsi
- Department of Dermatology; University Medical Center Freiburg; Hauptstraße 7 D-79104 Freiburg Germany
| | - J. S. Kern
- Department of Dermatology; University Medical Center Freiburg; Hauptstraße 7 D-79104 Freiburg Germany
| | - F. Meiss
- Department of Dermatology; University Medical Center Freiburg; Hauptstraße 7 D-79104 Freiburg Germany
| |
Collapse
|