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Hirsch S, Hoeper K, Meyer-Olson D, Schwarting A, Gente K, Dreher M, Hoeper J, Witte T, Thiele T. [The subanalysis of Rheuma-VOR demonstrates a considerable need for rheumatological care]. Z Rheumatol 2024:10.1007/s00393-024-01490-2. [PMID: 38456907 DOI: 10.1007/s00393-024-01490-2] [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] [Accepted: 01/24/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Early diagnosis and treatment of inflammatory rheumatic diseases can prevent consequential damage such as permanently limited mobility and joint or organ damage. Simultaneously, there is an increasing deficit in medical care owing to the lack of rheumatological capacity. Rural regions are particularly affected. OBJECTIVES The available unconfirmed diagnoses of the study Rheuma-VOR were analysed regarding another definitive inflammatory rheumatic disease. MATERIALS AND METHODS The returned questionnaires of the rheumatologists participating in Rheuma-VOR were screened for definitive inflammatory rheumatic diseases other than the required diagnosis of rheumatoid arthritis, psoriatic arthritis or spondyloarthritis. RESULTS Of 910 unconfirmed diagnoses, in 245 patients another definitive diagnosis could be confirmed. A total of 29.8% of the diagnoses corresponded to degenerative joint changes or chronic pain syndrome, whereas 26.1% involved different forms of inflammatory arthritis. The majority of diagnoses (40.5%) were collagenosis or vasculitis, DISCUSSION: The available data show that a rheumatological presentation was indicated for the majority of patients. Owing to the increasing deficits in medical care a prior selection of the patients is crucial to make optimal use of restricted rheumatological capacities.
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Affiliation(s)
- Stefanie Hirsch
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Deutschland.
| | - K Hoeper
- Regionales Kooperatives Rheumazentrum Niedersachsen e. V., Hannover, Deutschland
| | - D Meyer-Olson
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Deutschland
- m&i Fachklinik Bad Pyrmont und MVZ Weserbergland, Bad Pyrmont, Deutschland
| | - A Schwarting
- Schwerpunkt Rheumatologie und klinische Immunologie, Universitätsmedizin der Johannes Gutenberg Universität Mainz, Mainz, Deutschland
| | - K Gente
- Innere Medizin V- Sektion Rheumatologie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - M Dreher
- Schwerpunkt Rheumatologie und klinische Immunologie, Universitätsmedizin der Johannes Gutenberg Universität Mainz, Mainz, Deutschland
| | - J Hoeper
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Deutschland
- Center for Health Economics Research Hannover (CHERH), Leibniz University Hannover, Hannover, Deutschland
| | - T Witte
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Deutschland
| | - T Thiele
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Deutschland
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Baggio F, Hetzel U, Prähauser B, Dervas E, Michalopoulou E, Thiele T, Kipar A, Hepojoki J. A Multiplex RT-PCR Method for the Detection of Reptarenavirus Infection. Viruses 2023; 15:2313. [PMID: 38140554 PMCID: PMC10747477 DOI: 10.3390/v15122313] [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: 10/14/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Reptarenaviruses cause Boid Inclusion Body Disease (BIBD), a fatal disease of boid snakes with an economic and ecological impact, as it affects both captive and wild constrictor snakes. The clinical picture of BIBD is highly variable but often only limited. Intracytoplasmic inclusion bodies (IB), which develop in most cell types including blood cells, are the pathognomonic hallmark of BIBD; their detection represents the diagnostic gold standard of the disease. However, IBs are not consistently present in clinically healthy reptarenavirus carriers, which can, if undetected, lead to and maintain the spread of the disease within and between snake populations. Sensitive viral detection tools are required for screening and control purposes; however, the genetic diversity of reptarenaviruses hampers the reverse transcription (RT) PCR-based diagnostics. Here, we describe a multiplex RT-PCR approach for the molecular diagnosis of reptarenavirus infection in blood samples. The method allows the detection of a wide range of reptarenaviruses with the detection limit reaching 40 copies per microliter of blood. Using 245 blood samples with a reference RT-PCR result, we show that the technique performs as well as the segment-specific RT-PCRs in our earlier studies. It can identify virus carriers and serve to limit reptarenavirus spreading in captive snake collections.
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Affiliation(s)
- Francesca Baggio
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
- Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Udo Hetzel
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
| | - Barbara Prähauser
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
- Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Eva Dervas
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
| | - Eleni Michalopoulou
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
| | - Tanja Thiele
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
| | - Anja Kipar
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
| | - Jussi Hepojoki
- The BIBD Group and Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (U.H.); (B.P.); (E.D.); (E.M.); (T.T.); (A.K.); (J.H.)
- Department of Virology, Medicum, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
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Thiele T, Baggio F, Prähauser B, Ruiz Subira A, Michalopoulou E, Kipar A, Hetzel U, Hepojoki J. Reptarenavirus S Segment RNA Levels Correlate with the Presence of Inclusion Bodies and the Number of L Segments in Snakes with Reptarenavirus Infection-Lessons Learned from a Large Breeding Colony. Microbiol Spectr 2023; 11:e0506522. [PMID: 37212675 PMCID: PMC10269766 DOI: 10.1128/spectrum.05065-22] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/29/2023] [Indexed: 05/23/2023] Open
Abstract
Reptarenaviruses cause boid inclusion body disease (BIBD), a fatal disease particularly impacting captive boa constrictor collections. The development of cytoplasmic inclusion bodies (IBs) comprising reptarenavirus nucleoprotein (NP) in many cell types of affected snakes is characteristic of BIBD. However, snakes can harbor reptarenaviruses without showing IBs, hence representing carriers and a potential source of transmission. The RNA genome of reptarenaviruses comprises a small (S) and a large (L) segment, and the snakes with BIBD commonly carry a swarm of reptarenavirus segments. To design sensitive and reliable tools for the diagnosis of reptarenavirus infection in snake colonies, we used metatranscriptomics to determine the reptarenavirus segments present in a large boa constrictor breeding colony. The analysis identified one reptarenavirus S segment and three L segments in the colony. The sequence data served to design real-time reverse transcription-PCR (RT-PCR) targeting the found S segment. This allowed us to identify all infected animals and to quantify the S segment RNA levels, which we found to correlate with the presence of IBs. We further found a positive correlation between the number of L segments and the S segment RNA level, which could suggest that L segment excess also contributes to the IB formation. Information on cohousing of the snakes showed a clear association of reptarenavirus infection with cohousing in general and cohousing with infected animals. Information on breeding and offspring confirmed that vertical transmission occurred. Furthermore, our data suggest that some animals might be able to clear the infection or at least exhibit transient or intermittent viremia. IMPORTANCE Boid inclusion body disease (BIBD) is caused by reptarenavirus infection, and while reptarenavirus nucleoprotein is the main component of the inclusion bodies (IBs) characteristic of BIBD, not all reptarenavirus-infected snakes demonstrate IBs in their cells. Identification of infected individuals is critical for controlling the spread of the disease; however, the genetic divergence of reptarenaviruses complicates reverse transcription-PCR (RT-PCR)-based diagnostics. Here, we tested a next-generation-sequencing-based approach to establish a tailored "colony-specific" set of diagnostic tools for the detection of reptarenavirus small (S) and large (L) genome segments. With this approach, we could demonstrate that an S-segment-specific RT-PCR is highly effective in identifying the infected individuals. We further found the S segment RNA level to positively correlate with the presence of IBs and the number of L segments, which could direct future studies to identify the BIBD pathogenetic mechanisms.
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Affiliation(s)
- Tanja Thiele
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Francesca Baggio
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Barbara Prähauser
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Andres Ruiz Subira
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Eleni Michalopoulou
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Anja Kipar
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Udo Hetzel
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Jussi Hepojoki
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Department of Virology, Medicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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Thiele T, Morf N, Grimm F, Kipar A, Hetzel U. A Muskrat (Ondatra zibethicus) with alveolar echinococcosis bitten to death by a dog - a challenge for the forensic pathologist as an expert witness. J Comp Pathol 2023; 200:12-17. [PMID: 36610082 DOI: 10.1016/j.jcpa.2022.11.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/21/2022] [Accepted: 11/29/2022] [Indexed: 01/06/2023]
Abstract
We present a case that illustrates the complex contexts in which forensic veterinary pathology examinations may be carried out. A wild muskrat (Ondatra zibethicus) had died after a putative bite attack from a domestic dog. Bite attacks by privately owned dogs on wild animals in Switzerland violate the Swiss civil (and/or hunting) laws, and dog owners are generally punished with a monetary fine; hence, this case appeared to be straightforward. However, the results of the subsequent post-mortem examination of the muskrat not only confirmed the presence of injuries related to the bite attack, but also detected alveolar echinococcosis (ie, infestation with Echinococcus multilocularis). Therefore, as an intermediate host of the parasite, the muskrat could have contributed to further spread of a severe helminthic zoonosis had it not been killed by the dog. It was probably an easy prey for the dog as it probably had been weakened by the disease. Furthermore, muskrats are considered as pests and invasive species, and are non-indigenous huntable game in Switzerland and other European countries in which programmes for the prevention of their further spread and endangerment of native wildlife are established. The role of the forensic veterinary pathologist in such a complex scenario is to adopt an unbiased approach and establish the facts, which in this case was to determine the cause of death and suspected perpetrator, identify any concomitant and/or underlying diseases and consider potential animal welfare issues.
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Affiliation(s)
- Tanja Thiele
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse, Zurich, Switzerland
| | - Nadja Morf
- Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse, Zurich, Switzerland
| | - Felix Grimm
- Institute of Parasitology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse, Zurich, Switzerland
| | - Anja Kipar
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse, Zurich, Switzerland.
| | - Udo Hetzel
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse, Zurich, Switzerland
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Hirsch S, Skripuletz T, Seeliger T, Witte T, Thiele T. Selenium deficiency is associated with polyneuropathy in primary Sjögren's syndrome. Clin Nutr ESPEN 2022; 50:212-217. [DOI: 10.1016/j.clnesp.2022.05.015] [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] [Received: 09/09/2021] [Revised: 04/20/2022] [Accepted: 05/19/2022] [Indexed: 10/18/2022]
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Thiele T, Hepojoki J, Baggio F, Prähauser B, Kipar A, Hetzel U. Boid Inclusion Body Disease and Reptarenavirus Infection: A Diagnostic Challenge in Snake Colonies. J Comp Pathol 2022. [DOI: 10.1016/j.jcpa.2021.11.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Altenbrunner-Martinek B, Thiele T, Tichy A, Wittek T. [Surgery site healing disorder following laparotomy in cattle: a retrospective study]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2021; 49:157-166. [PMID: 34157745 DOI: 10.1055/a-1477-7931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Wound healing processes in consequence to bovine abdominal surgery performed from 2007 to 2016 at the University of Veterinary Medicine in Vienna were retrospectively assessed. The aim of this study was to evaluate the occurrence of wound healing complications following abdominal surgery in cattle during this 10-year-period as well as to identify possible risk factors such as elevated temperatures. MATERIAL AND METHODS Surgical procedures finding inclusion comprised ileus, left and right abomasal displacement, caecal dilation or displacement (right flank laparotomies), foreign body syndrome (left flank laparotomy), and umbilical surgery. Additionally, weather data during the study period were collected in order to investigate the possible association between ambient temperatures and wound healing disorders. RESULTS During this period 1365 abdominal surgical procedures were performed. The majority (68.6 %) of the cattle were Simmental cows, followed by 19.6 % Holstein Friesians. Female animals were overrepresented (73.0 %), and 24.0 % of the patients were calves. In 156 cases (11.7 %), a postoperative wound healing disorder (WHD) occurred. The majority of the laparotomies were performed from the right side; of these 21.4 % were left abomasal displacements and 21.7 % ileus surgeries. Left abomasal displacements (24.4 %) and surgery in the umbilical region (21.2 %) were associated with a higher occurrence of WHDs than other abdominal surgical procedures. Animals with right abomasal displacement developing WHDs were significantly younger than those without a WHD. A significant association between WHD frequency and higher temperatures could not be demonstrated. A total of 34.6 % WHD occurred during the summer months (June-September). However, the probability of developing WHDs increased significantly starting at an environmental temperature of 12.5 °C. Most WHD were observed in May (17.1 %) followed by July (15.6 %) and June (15.3 %). CONCLUSION AND CLINICAL RELEVANCE The occurrence of WHDs is influenced by numerous different factors such as age of the animal, disease, and type of the surgical procedure. The environmental temperature may increase the risk to develop a WHD but is only one parameter of a multifactorial process.
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Affiliation(s)
- Birgit Altenbrunner-Martinek
- Universitätsklinik für Wiederkäuer, Department für Nutztiere und öffentliches Gesundheitswesen in der Veterinärmedizin, Veterinärmedizinische Universität Wien
| | - Tanja Thiele
- Universitätsklinik für Wiederkäuer, Department für Nutztiere und öffentliches Gesundheitswesen in der Veterinärmedizin, Veterinärmedizinische Universität Wien
| | - Alexander Tichy
- Bioinformatik und Biostatistik, Veterinärmedizinische Universität Wien
| | - Thomas Wittek
- Universitätsklinik für Wiederkäuer, Department für Nutztiere und öffentliches Gesundheitswesen in der Veterinärmedizin, Veterinärmedizinische Universität Wien
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Thiele T, Beider S, Kühl H, Miehlke G, Cossmann A, Holz A, Happle C, Hoeper K, Witte T, Jabonka A, Ernst D. AB0707 RHEUMATOLOGY PATIENT CARE IN THE COVID-19 PANDEMIC: TELEMEDICINE, DELEGATION, PATIENT SATISFACTION AND VACCINATION BEHAVIOUR. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.4005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Use of telemedicine in Germany has increased due to the COVID-19 lockdown. Between March and May 2020, government restrictions led to cancellation of routine outpatient appointments to limit viral spread and optimize resources.Objectives:This study assesses patient satisfaction of follow-up telemedicine appointments among patients known to be in disease remission, attending either secondary or tertiary care Rheumatology clinics. Appointments were conducted either by a rheumatologist or a qualified medical assistant for rheumatology (RFA). Additional data regarding perceived concerns arising from the COVID-19 pandemic as well as attitudes to vaccination were collected.Methods:Methods: Patients not requiring adjustment of their DMARDs at the two previous attendances were considered stable. At cancellation of the planned attendance, patients were offered participation in the study and provided verbal informed consent. Participants were randomized to a telemedicine appointment by either a physician or RFA. Telemedicine appointments consisted of a standardized patient interview, including assessment of disease activity (modified CDAI score), attitudes to vaccination as well as current vaccine status and concerns about COVID-19. Following participation, all patients received a pseudonymized postal questionnaire to evaluate appointment satisfaction (FAPI-Score).Results:In total 112/116 (96%) patients that were offered appointments, participated in the study (RA 50%, axSpA 30%, PsA 20%). Of these 88/112 (79%) returned their postal questionnaires. Overall patient satisfaction was excellent (mean 4.3/5 modified FAPI score) and did not differ between care setting or clinical status of the interviewer. RFAs conducted 19/112 (17%) of appointments, 6 (32%) of which required additional physician intervention. Change of DMARDs occurred in 19/112 (17%) appointments. Patients reporting a pain score ≥7 (VAS 1-10) were most dissatisfied with the telemedicine appointment (p=0.036). Concerns about COVID-19 correlated with disease activity: high disease activity (p = 0.031), presence of tender joints (p=0.001), high pain levels (p=0.009) correlated with concern of contracting COVID-19 or experiencing severe disease course. Only 38% of the patients had been vaccinated against pneumococci in the past 5 years and 54% had been vaccinated against influenza in 2019/2020.Conclusion:Telemedicine can contribute to patient care in stable patients. RFAs can also contribute to patient care especially for follow-up appointment when patients are in remission. Vaccination rates and motivation needs to be improved as influenza and pneumococcal vaccination is recommended to all patients with rheumatic diseases without contraindications.Disclosure of Interests:None declared
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Moittié S, N Sheppard M, Thiele T, Baiker K. Non-Infectious, Necrotizing and Granulomatous Aortitis in a Female Gorilla. J Comp Pathol 2020; 181:7-12. [PMID: 33288155 DOI: 10.1016/j.jcpa.2020.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/27/2020] [Accepted: 09/19/2020] [Indexed: 11/28/2022]
Abstract
A 41-year-old female captive gorilla with progressive weight loss and hydrothorax of unknown origin was euthanized and submitted for necropsy. The ascending aorta showed intimal aortic thickenings, consistent with so called 'tree bark' changes. Microscopic examination revealed a non-infectious, necrotizing and granulomatous aortitis with no evidence of systemic vasculitis or infectious disease elsewhere in the body. While rare, large vessel vasculitides should be considered as a differential diagnosis in gorillas presenting with progressive non-specific signs and vascular intimal changes.
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Affiliation(s)
- Sophie Moittié
- School of Veterinary Medicine and Science, University of Nottingham, Leicestershire, UK; Twycross Zoo, East Midland Zoological Society, Atherstone, UK
| | - Mary N Sheppard
- Department of Cardiovascular Pathology, St George's Medical School, London, UK
| | - Tanja Thiele
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Kerstin Baiker
- School of Veterinary Medicine and Science, University of Nottingham, Leicestershire, UK.
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Thiele T, Seeliger T, Witte T, Sander B, Skripuletz T, Ernst D. [Severe polyneuropathy in primary Sjögren's syndrome : Sjögren's syndrome should be considered in patients with motor neuropathy]. Z Rheumatol 2020; 79:707-709. [PMID: 32474638 DOI: 10.1007/s00393-020-00821-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A 64-year-old male patient developed over a period of 20 years a peripheral neuropathy symmetrically affecting the upper and lower limbs. The histological examination of a sural nerve biopsy revealed a severe axonal neuropathy. Despite extensive laboratory investigations including immunological and metabolic tests the origin could not be identified. Finally, a Schirmer test revealed xerophthalmia. A subsequent salivary gland biopsy from the lower lip revealed a grade III lymphocytic inflammation according to Chisholm and Mason and confirmed the diagnosis of Sjögren's syndrome.
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Affiliation(s)
- T Thiele
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
| | - T Seeliger
- Klinik für Neurologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - T Witte
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - B Sander
- Institut für Pathologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - T Skripuletz
- Klinik für Neurologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - D Ernst
- Klinik für Rheumatologie und Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
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Thiele T, Lin Y, Brown MO, Regal CA. Self-Calibrating Vector Atomic Magnetometry through Microwave Polarization Reconstruction. Phys Rev Lett 2018; 121:153202. [PMID: 30362778 DOI: 10.1103/physrevlett.121.153202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Indexed: 06/08/2023]
Abstract
Atomic magnetometry is one of the most sensitive ways to measure magnetic fields. We present a method for converting a naturally scalar atomic magnetometer into a vector magnetometer by exploiting the polarization dependence of hyperfine transitions in rubidium atoms. First, we fully determine the polarization ellipse of an applied microwave field using a self-calibrating method, i.e., a method in which the light-atom interaction provides everything required to know the field in an orthogonal laboratory frame. We then measure the direction of an applied static field using the polarization ellipse as a three-dimensional reference defined by Maxwell's equations. Although demonstrated with trapped atoms, this technique could be applied to atomic vapors, or a variety of atomlike systems.
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Affiliation(s)
- T Thiele
- JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - Y Lin
- JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - M O Brown
- JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - C A Regal
- JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
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Baschin M, Selleng S, Hummel A, Diedrich S, Schroeder HW, Kohlmann T, Westphal A, Greinacher A, Thiele T. Preoperative platelet transfusions to reverse antiplatelet therapy for urgent non-cardiac surgery: an observational cohort study. J Thromb Haemost 2018; 16:709-717. [PMID: 29383871 DOI: 10.1111/jth.13962] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 08/22/2017] [Indexed: 01/22/2023]
Abstract
Essentials An increasing number of patients requiring surgery receive antiplatelet therapy (APT). We analyzed 181 patients receiving presurgery platelet transfusions to reverse APT. No coronary thrombosis occurred after platelet transfusion. This justifies a prospective trial to test preoperative platelet transfusions to reverse APT. SUMMARY Background Patients receiving antiplatelet therapy (APT) have an increased risk of perioperative bleeding and cardiac adverse events (CAE). Preoperative platelet transfusions may reduce the bleeding risk but may also increase the risk of CAE, particularly coronary thrombosis in patients after recent stent implantation. Objectives To analyze the incidence of perioperative CAE and bleeding in patients undergoing non-cardiac surgery using a standardized management of transfusing two platelet concentrates preoperatively and restart of APT within 24-72 h after surgery. Methods A cohort of consecutive patients on APT treated with two platelet concentrates before non-cardiac surgery between January 2012 and December 2014 was retrospectively identified. Patients were stratified by the risk of major adverse cardiac and cerebrovascular events (MACCE). The primary objective was the incidence of CAE (myocardial infarction, acute heart failure and cardiac troponine T increase). Secondary objectives were incidences of other thromboembolic events, bleedings, transfusions and mortality. Results Among 181 patients, 88 received aspirin, 21 clopidogrel and 72 dual APT. MACCE risk was high in 63, moderate in 103 and low in 15 patients; 67 had cardiac stents. Ten patients (5.5%; 95% CI, 3.0-9.9%) developed a CAE (three myocardial infarctions, four cardiac failures and three troponin T increases). None was caused by coronary thrombosis. Surgery-related bleeding occurred in 22 patients (12.2%; 95% CI, 8.2-17.7%), making 12 re-interventions necessary (6.6%; 95% CI, 3.8-11.2%). Conclusion Preoperative platelet transfusions and early restart of APT allowed urgent surgery and did not cause coronary thromboses, but non-thrombotic CAEs and re-bleeding occurred. Randomized trials are warranted to test platelet transfusion against other management strategies.
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Affiliation(s)
- M Baschin
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
| | - S Selleng
- Klinik für Anästhesiologie, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Hummel
- Klinik und Poliklinik für Innere Medizin B, Universitätsmedizin Greifswald, Greifswald, Germany
| | - S Diedrich
- Klinik und Poliklinik für Chirurgie, Universitätsmedizin Greifswald, Greifswald, Germany
| | - H W Schroeder
- Klinik für Neurochirurgie, Universitätsmedizin Greifswald, Greifswald, Germany
| | - T Kohlmann
- Institut für Community Medicine, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Westphal
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
| | - A Greinacher
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
| | - T Thiele
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
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13
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Ritzer J, Lühmann T, Rode C, Pein-Hackelbusch M, Immohr I, Schedler U, Thiele T, Stübinger S, Rechenberg BV, Waser-Althaus J, Schlottig F, Merli M, Dawe H, Karpíšek M, Wyrwa R, Schnabelrauch M, Meinel L. Diagnosing peri-implant disease using the tongue as a 24/7 detector. Nat Commun 2017; 8:264. [PMID: 28811549 PMCID: PMC5557808 DOI: 10.1038/s41467-017-00340-x] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/22/2017] [Indexed: 11/09/2022] Open
Abstract
Our ability of screening broad communities for clinically asymptomatic diseases critically drives population health. Sensory chewing gums are presented targeting the tongue as 24/7 detector allowing diagnosis by "anyone, anywhere, anytime". The chewing gum contains peptide sensors consisting of a protease cleavable linker in between a bitter substance and a microparticle. Matrix metalloproteinases in the oral cavity, as upregulated in peri-implant disease, specifically target the protease cleavable linker while chewing the gum, thereby generating bitterness for detection by the tongue. The peptide sensors prove significant success in discriminating saliva collected from patients with peri-implant disease versus clinically asymptomatic volunteers. Superior outcome is demonstrated over commercially available protease-based tests in saliva. "Anyone, anywhere, anytime" diagnostics are within reach for oral inflammation. Expanding this platform technology to other diseases in the future features this diagnostic as a massive screening tool potentially maximizing impact on population health.Early detection of gum inflammation caused by dental implants helps prevent tissue damage. Here, the authors present a peptide sensor that generates a bitter taste when cleaved by proteases present in peri-implant disease, embed it in a chewing gum, and compare the probe to existing sensors using patient saliva.
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Affiliation(s)
- J Ritzer
- Institute for Pharmacy and Food Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - T Lühmann
- Institute for Pharmacy and Food Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - C Rode
- Biomaterials Department, Innovent e.V., Prüssingstraße 27B, 07745, Jena, Germany
| | - M Pein-Hackelbusch
- Institute for Pharmaceutics, Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - I Immohr
- Institute for Pharmaceutics, Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - U Schedler
- PolyAn GmbH, Rudolf-Baschant-Straße 2, 13086, Berlin, Germany
| | - T Thiele
- PolyAn GmbH, Rudolf-Baschant-Straße 2, 13086, Berlin, Germany
| | - S Stübinger
- Musculoskeletal Research Unit, Center for Applied Biotechnology and Molecular Medicine, Universität Zürich, Winterthurerstrasse 270, 8057, Zurich, Switzerland
| | - B V Rechenberg
- Musculoskeletal Research Unit, Center for Applied Biotechnology and Molecular Medicine, Universität Zürich, Winterthurerstrasse 270, 8057, Zurich, Switzerland
| | - J Waser-Althaus
- Thommen Medical AG, Neckarsulmstrasse 28, 2540, Grenchen, Switzerland
| | - F Schlottig
- Thommen Medical AG, Neckarsulmstrasse 28, 2540, Grenchen, Switzerland
| | - M Merli
- Indent-International Dental Research and Education srl, Via Settembrini 17/o, 47923, Rimini, Italy
| | - H Dawe
- Indent-International Dental Research and Education srl, Via Settembrini 17/o, 47923, Rimini, Italy
| | - M Karpíšek
- BioVendor-Laboratorni medicina AS and Department of Human Pharmacology and Toxicology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 61242, Brno, Czech Republic
| | - R Wyrwa
- Biomaterials Department, Innovent e.V., Prüssingstraße 27B, 07745, Jena, Germany
| | - M Schnabelrauch
- Biomaterials Department, Innovent e.V., Prüssingstraße 27B, 07745, Jena, Germany
| | - L Meinel
- Institute for Pharmacy and Food Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
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Baschin M, Selleng S, Zeden JP, Westphal A, Kohlmann T, Schroeder HW, Greinacher A, Thiele T. Platelet transfusion to reverse antiplatelet therapy before decompressive surgery in patients with intracranial haemorrhage. Vox Sang 2017; 112:535-541. [DOI: 10.1111/vox.12542] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/16/2022]
Affiliation(s)
- M. Baschin
- Institut für Immunologie und Transfusionsmedizin; Abteilung Transfusionsmedizin; Universitätsmedizin Greifswald; Greifswald Germany
| | - S. Selleng
- Klinik für Anästhesiologie; Universitätsmedizin Greifswald; Greifswald Germany
| | - J.-P. Zeden
- Klinik für Neurochirurgie; Universitätsmedizin Greifswald; Greifswald Germany
| | - A. Westphal
- Institut für Immunologie und Transfusionsmedizin; Abteilung Transfusionsmedizin; Universitätsmedizin Greifswald; Greifswald Germany
| | - T. Kohlmann
- Institut für Community Medicine; Universitätsmedizin Greifswald; Greifswald Germany
| | - H. W. Schroeder
- Klinik für Neurochirurgie; Universitätsmedizin Greifswald; Greifswald Germany
| | - A. Greinacher
- Institut für Immunologie und Transfusionsmedizin; Abteilung Transfusionsmedizin; Universitätsmedizin Greifswald; Greifswald Germany
| | - T. Thiele
- Institut für Immunologie und Transfusionsmedizin; Abteilung Transfusionsmedizin; Universitätsmedizin Greifswald; Greifswald Germany
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15
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Abstract
Transmission of human cytomegalovirus (CMV) via transfusion (TT-CMV) may still occur and remains a challenge in the treatment of immunocompromised CMV-seronegative patients, e.g. after stem cell transplantation, and for low birthweight infants. Measures to reduce the risk of TT-CMV have been evaluated in clinical studies, including leucocyte depletion of cellular blood products and/or the selection of CMV-IgG-negative donations. Studies in large blood donor cohorts indicate that donations from newly CMV-IgG-positive donors should bear the highest risk for transmitting CMV infections because they contain the highest levels of CMV-DNA, and early CMV antibodies cannot neutralise CMV. Based on this knowledge, rational strategies to reduce the residual risk of TT-CMV using leucoreduced blood products could be designed. However, there is a lack of evidence that CMV is still transmitted by transfusion of leucoreduced units. In low birthweight infants, most (if not all) CMV infections are caused by breast milk feeding or congenital transmission rather than by transfusion of leucoreduced blood products. For other patients at risk, no definitive data exist about the relative importance of alternative transmission routes of CMV compared to blood transfusion. As a result, only the conduction of well-designed studies addressing strategies to prevent TT-CMV and the thorough examination of presumed cases of TT-CMV will achieve guidance for the best transfusion regimen in patients at risk.
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Affiliation(s)
- M Ziemann
- Institut für Transfusionsmedizin, Universitätsklinikum Schleswig Holstein, Lübeck, Germany
| | - T Thiele
- Institut für Immunologie und Transfusionsmedizin, Abteilung Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
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16
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Thiele T, Manns MP, Lankisch TO, von Hahn T. Very low rates of Helicobacter pylori infection in organ transplant recipients presenting with peptic ulcer disease. Acta Gastroenterol Belg 2017; 80:25-30. [PMID: 29364094] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Leading causative factors of peptic ulcer disease (PUD) in the general population are infection with Helicobacter pylori (HP) and exposure to non-steroidal anti-inflammatory drugs (NSAID). We hypothesized that this may be different in transplant recipients given increased exposure of immunosuppressive and anti-microbial drugs. METHODS We performed a retrospective single center analysis of all patients presenting with PUD to the endoscopy unit at a tertiary care and transplant center in Germany between 2006 and 2013. PUD was diagnosed by upper endoscopy. HP was identified by biopsy and histology. Organ transplant recipients were compared to non-transplant recipients (control group). RESULTS 66 patients with PUD were identified in the study period. 12% (44/366) had previously received an organ transplant. 7% (3/44) of transplant recipients were found to be positive for HP compared to 25% (81/322) in the control group (p=0.007). Even when excluding patients taking proton-pump-inhibitors (PPI) from the analysis rates were similar with 30% (65/214) of the ulcers being HP positive in the control group compared to 14% (1/7) in transplant recipients (p=0.006). Furthermore, in the transplant recipient group rates of being in intensive care, concurrent PPI and concurrent antibiotic medication were significantly higher than in the control group. CONCLUSION Organ transplant recipients with PUD have lower rates of Helicobacter pylori positivity compared to the general population.
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Affiliation(s)
- T Thiele
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
- German Center for Infection Research (DZIF) Hannover-Braunschweig Site
| | - M P Manns
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
- German Center for Infection Research (DZIF) Hannover-Braunschweig Site
| | - T O Lankisch
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
- German Center for Infection Research (DZIF) Hannover-Braunschweig Site
| | - T von Hahn
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
- German Center for Infection Research (DZIF) Hannover-Braunschweig Site
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17
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Thiele T, Alt-Mayer T, Greinacher A, Bux J. Implications of a switch to a 100% apheresis platelet supply for patients and for blood donors: a risk benefit analysis. Vox Sang 2016; 111:350-356. [PMID: 27432635 DOI: 10.1111/vox.12433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 06/09/2016] [Accepted: 06/09/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND A 100% apheresis platelet supply is considered to increase transfusion safety by lowering donor exposures for transfusion recipients. We performed a risk benefit analysis to contrast the reduction of donor exposures and the risk of contaminated blood products in the nation-wide inventory with the donor risks associated with a switch to a 100% apheresis platelet supply in Germany. METHODS Donor exposures and the number of contaminated blood products resulting from HIV-like, HBV-like, HCV-like pathogens and two theoretical agents with infection rates of 10 and 1000 in 100 000, respectively, were calculated for a 100% apheresis platelet supply in Germany based on the 2006-2012 hemovigilance reports. These numbers were compared with the current mixed platelet supply of pooled and apheresis platelets. Moreover, additional donation time and apheresis donor complications resulting from a 100% apheresis platelet supply were estimated. RESULTS Per million total blood products (red cells, platelets, fresh frozen plasma), a 100% apheresis platelet supply would reduce donor exposures by 87 100 and the number of contaminated blood products ranging from 0·8 to 871·1. On the other hand, this requires additional 29 478 apheresis donations, 3·4 years additional donor time, and would be associated with 58 additional donor complications, respectively. CONCLUSIONS A 100% apheresis platelet supply would reduce donor exposures and the number of contaminated blood products in the inventory, but would increase apheresis complications in donors. Potential risks for patients must be carefully weighed against the risks for donors, dependent on the specific pathogen scenario.
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Affiliation(s)
- T Thiele
- Institute for Immunology and Transfusion Medicine, Universitätsmedizin Greifswald, Greifswald, Germany
| | - T Alt-Mayer
- German Red Cross Blood Service West, Bad Kreuznach, Germany
| | - A Greinacher
- Institute for Immunology and Transfusion Medicine, Universitätsmedizin Greifswald, Greifswald, Germany
| | - J Bux
- Ruhr University, Bochum, Germany
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18
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Abstract
Perioperative hemostatic management is increasingly important in Otolaryngology. This review summarizes the key elements of perioperative risk stratification, thromboprophylaxis, and therapies for bridging of antithrombotic treatment. It gives a practical advise based on the current literature with an emphasis for patients undergoing ear-nose-throat surgery.
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Affiliation(s)
- T Thiele
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin
| | - H Kaftan
- Klinik und Poliklinik für Hals-Nasen-Ohrenkrankheiten, Kopf- und Halschirurgie, Universitätsmedizin Greifswald
| | - W Hosemann
- Klinik und Poliklinik für Hals-Nasen-Ohrenkrankheiten, Kopf- und Halschirurgie, Universitätsmedizin Greifswald
| | - A Greinacher
- Abteilung Transfusionsmedizin, Institut für Immunologie und Transfusionsmedizin
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19
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Engelmann B, Bischof J, Dirk AL, Friedrich N, Hammer E, Thiele T, Iwen A, Führer D, Homuth G, Völker U, Brabant EG. Effect of experimental thyrotoxicosis onto blood coagulation – A proteomics study. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Thiele T, Pohler P, Kohlmann T, Sümnig A, Aurich K, Selleng K, Westphal A, Bakchoul T, Petersmann A, Müller TH, Greinacher A, Seltsam A. Tolerance of platelet concentrates treated with UVC-light only for pathogen reduction--a phase I clinical trial. Vox Sang 2015; 109:44-51. [PMID: 25754418 DOI: 10.1111/vox.12247] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 10/22/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND The THERAFLEX UV-Platelets pathogen reduction system for platelet concentrates (PCs) operates with ultraviolet C light (UVC; 254 nm) only without addition of photosensitizers. This phase I study evaluated safety and tolerability of autologous UVC-irradiated PCs in healthy volunteers. METHODS Eleven volunteers underwent two single (series 1 and 2) and one double apheresis (series 3). PCs were treated with UVC, stored for 48 h and retransfused in a dose-escalation scheme: 12·5, 25% and 50% of a PC (series 1); one complete PC (series 2); two PCs (series 3). Platelet counts, fibrinogen, activated partial thromboplastin time, prothrombin time, D-dimer, standard haematology, temperature, heart rate, blood pressure and clinical chemistry parameters were measured. One- and 24-h corrected count increments were determined in series 2 and 3. Platelet-specific antibodies were assessed before and at the end of the study. RESULTS Neither adverse reactions related to transfusions nor antibodies against UVC-treated platelets were observed. Corrected count increments did not differ between series 2 and 3. CONCLUSIONS Repeated transfusions of autologous UVC-treated PCs were well tolerated and did not induce antibody responses in all volunteers studied. EudraCT No. 2010-023404-26.
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Affiliation(s)
- T Thiele
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - P Pohler
- DRK Blutspendedienst NSTOB, Institut Springe, Springe, Germany
| | - T Kohlmann
- Institut für Community Medicine, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Sümnig
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - K Aurich
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - K Selleng
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Westphal
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - T Bakchoul
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Petersmann
- Institut für Klinische Chemie und Labormedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - T H Müller
- DRK Blutspendedienst NSTOB, Institut Springe, Springe, Germany
| | - A Greinacher
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - A Seltsam
- DRK Blutspendedienst NSTOB, Institut Springe, Springe, Germany
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21
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Brunner C, Hoffmann K, Thiele T, Schedler U, Jehle H, Resch-Genger U. Novel calibration tools and validation concepts for microarray-based platforms used in molecular diagnostics and food safety control. Anal Bioanal Chem 2015; 407:3181-91. [PMID: 25616702 DOI: 10.1007/s00216-014-8450-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/05/2014] [Accepted: 12/23/2014] [Indexed: 11/28/2022]
Abstract
Commercial platforms consisting of ready-to-use microarrays printed with target-specific DNA probes, a microarray scanner, and software for data analysis are available for different applications in medical diagnostics and food analysis, detecting, e.g., viral and bacteriological DNA sequences. The transfer of these tools from basic research to routine analysis, their broad acceptance in regulated areas, and their use in medical practice requires suitable calibration tools for regular control of instrument performance in addition to internal assay controls. Here, we present the development of a novel assay-adapted calibration slide for a commercialized DNA-based assay platform, consisting of precisely arranged fluorescent areas of various intensities obtained by incorporating different concentrations of a "green" dye and a "red" dye in a polymer matrix. These dyes present "Cy3" and "Cy5" analogues with improved photostability, chosen based upon their spectroscopic properties closely matching those of common labels for the green and red channel of microarray scanners. This simple tool allows to efficiently and regularly assess and control the performance of the microarray scanner provided with the biochip platform and to compare different scanners. It will be eventually used as fluorescence intensity scale for referencing of assays results and to enhance the overall comparability of diagnostic tests.
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Affiliation(s)
- C Brunner
- Division Biophotonics, BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, 12489, Berlin, Germany
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Goban A, Choi KS, Alton DJ, Ding D, Lacroûte C, Pototschnig M, Thiele T, Stern NP, Kimble HJ. Demonstration of a state-insensitive, compensated nanofiber trap. Phys Rev Lett 2012; 109:033603. [PMID: 22861848 DOI: 10.1103/physrevlett.109.033603] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Indexed: 06/01/2023]
Abstract
We report the experimental realization of an optical trap that localizes single Cs atoms ≃215 nm from the surface of a dielectric nanofiber. By operating at magic wavelengths for pairs of counterpropagating red- and blue-detuned trapping beams, differential scalar light shifts are eliminated, and vector shifts are suppressed by ≈250. We thereby measure an absorption linewidth Γ/2π=5.7±0.1 MHz for the Cs 6S(1/2), F=4→6P(3/2), F'=5 transition, where Γ0/2π=5.2 MHz in free space. An optical depth d≃66 is observed, corresponding to an optical depth per atom d1≃0.08. These advances provide an important capability for the implementation of functional quantum optical networks and precision atomic spectroscopy near dielectric surfaces.
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Affiliation(s)
- A Goban
- Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA
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23
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Thiele T, Sümnig A, Hron G, Müller C, Althaus K, Schroeder HWS, Greinacher A. Platelet transfusion for reversal of dual antiplatelet therapy in patients requiring urgent surgery: a pilot study. J Thromb Haemost 2012; 10:968-71. [PMID: 22429740 DOI: 10.1111/j.1538-7836.2012.04699.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hogan SD, Agner JA, Merkt F, Thiele T, Filipp S, Wallraff A. Driving Rydberg-Rydberg transitions from a coplanar microwave waveguide. Phys Rev Lett 2012; 108:063004. [PMID: 22401065 DOI: 10.1103/physrevlett.108.063004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Indexed: 05/23/2023]
Abstract
The coherent interaction between ensembles of helium Rydberg atoms and microwave fields in the vicinity of a solid-state coplanar waveguide is reported. Rydberg-Rydberg transitions, at frequencies between 25 and 38 GHz, have been studied for states with principal quantum numbers in the range 30-35 by selective electric-field ionization. An experimental apparatus cooled to 100 K was used to reduce effects of blackbody radiation. Inhomogeneous, stray electric fields emanating from the surface of the waveguide have been characterized in frequency- and time-resolved measurements and coherence times of the Rydberg atoms on the order of 250 ns have been determined. These results represent a key element in the development of an experimental architecture to interface Rydberg atoms with solid-state devices.
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Affiliation(s)
- S D Hogan
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
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25
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Huber J, Becker M, Unterrainer J, Thiele T, Reichel C, Schiefer S. Analyses of loss-of-coolant accidents involving release of insulation material under consideration of the measures taken for PWR from expert's point of view. KERNTECHNIK 2011. [DOI: 10.3139/124.110137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The incident, which happened in the Swedish nuclear power plant Barsebäck 2 on 28th of July, 1992 brought about a re-evaluation of the design requirements for the control of loss-of-coolant accidents (LOCA) involving the release of insulation material that were valid in Germany up to that time. The current paper provides an overview on the aspects that need to be taken into consideration for analyses as well as a description of the important boundary conditions. In giving details of the analyses, the actual state is also described. It is also illustrated that sufficient examinations and tests have been performed for the German PWR plants and corresponding measures have been taken providing a sufficient basis for a final positive evaluation of the issue “LOCA involving release of insulation material”.
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Affiliation(s)
- J. Huber
- TÜV SÜD Industrie Service GmbH, 80684 München, Fax: +49 89 5791 2517. E.-mail:
| | - M. Becker
- TÜV SÜD Industrie Service GmbH, 80684 München, Fax: +49 89 5791 2517. E.-mail:
| | - J. Unterrainer
- TÜV SÜD Industrie Service GmbH, 80684 München, Fax: +49 89 5791 2696. E-mail:
| | - T. Thiele
- TÜV SÜD Industrie Service GmbH, 80684 München, Fax: +49 89 5791 1161. E-mail:
| | - C. Reichel
- TÜV SÜD Industrie Service GmbH, 80686 München, Fax: +49 89 5791 1161. E-mail:
| | - S. Schiefer
- TÜV SÜD Industrie Service GmbH, 80686 München, Fax: +49 89 5791 1161. E-mail:
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Grosse G, Thiele T, Heuckendorf E, Schopp E, Merder S, Pickert G, Ahnert-Hilger G. Deltamethrin differentially affects neuronal subtypes in hippocampal primary culture. Neuroscience 2002; 112:233-41. [PMID: 12044486 DOI: 10.1016/s0306-4522(01)00573-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The effects of deltamethrin on neuronal development and survival were studied using primary mouse hippocampal neurons in culture. Repeated applications of deltamethrin (between 2 nM and 2000 nM) decreased the number of neurons by 16-40%, respectively. Neuronal death was accompanied by an overall decrease of synaptic proteins. Deltamethrin treatment increased the K(+)-stimulated release of amino acid transmitters, GABA and glutamate. The release of the latter might also contribute to neuronal damage. A considerable number of neurons survived treatment with high concentrations of deltamethrin (200-2000 nM) and still displayed characteristics of mature neurons such as synaptic contacts or the expression of members of the Kv1 channel family. When analyzing subtypes of neurons calbindin- as well as somatostatin-positive neurons decreased by 50% after repeated treatment with 2 nM deltamethrin. Under the same conditions neuropeptide Y-positive neurons were up-regulated by 250%.Taken together these data show that deltamethrin at concentrations relevant in human toxicology differentially affects survival of neuronal subtypes by exerting either deleterious or supportive effects. We conclude that deltamethrin disturbs fine-tuning of neuronal efficiency in neuronal networks and might also interfere with the correct wiring during development.
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Affiliation(s)
- G Grosse
- Institut für Anatomie der Charité, Humboldt-Universität zu Berlin, Philippstr. 12, D-10115 Berlin, Germany
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Abstract
The sleep-awakening disruption of an adolescent with developmental disabilities was treated using an antecedent control intervention that identified his consistent time of wake-up, provided the presence of a preferred staff in his bedroom, and prompted social interaction from staff before challenging behaviors occurred. Positive findings were documented using a combined reversal and multiple baseline across settings design, with results maintained through a 9-month follow-up. A partial component analysis of the intervention plan suggested that the presence of preferred staff was the influential antecedent variable.
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Affiliation(s)
- T Thiele
- The May Institute Inc., Norwood, MA 02062, USA
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Abstract
BACKGROUND The conjunctival flora is of great interest for each case of intraocular operation preventing postoperative infections. Despite of negative cultures before the operation we investigated in a prospective randomized study perioperatively the bacterial situation of the conjunctiva in 105 patients. MATERIAL AND METHODS We took conjunctival swabs for microbiological examination from patient's eye operated on cataract or glaucoma, on the day of admission to the eye clinic and in the morning of the operating day. In addition, specimens were taken by nurses with Transwab MW-172 P before the local anaesthesia, disinfection of the conjunctiva and lids and application of eye drops, after these procedures by a research worker, at the end of the operation by the surgeon and two to three days after the operation by nurses with Transwab MW-172 P again. In 53 patients we collected lacrimal fluid to measure the lysozyme concentration. RESULTS Out of 686 conjunctival swabs we have found 126 (18.4%) positive cultures. Staphylococcus epidermidis had the highest incidence (109 = 86.5%) followed by Staphylococcus aureus (7 = 5.5%). Only in 28 eyes all conjunctival swabs, taken at different times, were negative. There was an increase of positive cultures from routine swabs on the day of admission from 13 (12.4%), to 33 (31.7%) in the swabs taken on the day of the operation in the morning. On the other side the positive cultures decreased then continuously before and after the preparation of the operation, at the end of the operation and during two to three days postoperatively. There was'nt any statistical correlation between the concentration of the lacrimal lysozyme and the rate of positive cultures. CONCLUSION The preoperative bacteriological diagnostic of the conjunctiva is important mainly for the prevention of postoperative endophthalmitis despite the transience and fluctuation of the conjunctival flora but also in case of endophthalmitis for rapid specific antibiotical therapy.
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Affiliation(s)
- J Herde
- Klinik und Poliklinik für Augenheilkunde, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg
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Abstract
To elucidate further the pathomechanisms of cutaneous whealing in response to insect or sea-animal stings, commercial sources of bee and wasp venoms and of sea nettle nematocyst extracts, as well as crude bee and wasp venoms, were examined for the presence of histamine, leukotrienes (LT) C4, LTB4 (radioimmunoassay and reverse-phase high-pressure liquid chromatography), and neutrophil chemotactic activity (NCA). Histamine was present in all samples with the highest levels in the crude insect venoms. The same held for LTC4 with highest quantities in a liquid commercial bee venom extract and in the crude venoms. Relatively large amounts of LTB4 were recovered from the sea nettles with a correspondingly high NCA. Although small levels of LTB4 were found in the other samples, there was no clear correlation to the NCA on a quantitative basis. The demonstration of these mediators offers an explanation for the occurrence of local immediate and persistent wheals at sites of bee, wasp, and sea nettle stings in nonsensitized individuals.
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Affiliation(s)
- B M Czarnetzki
- Department of Dermatology, University Clinics, Münster, West Germany
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Abstract
In order to clarify the mechanisms of urtication after contact with stinging plants, nettle (Urtica urens) hair and whole-plant extracts were examined for the presence of leukotriene (LT) B4 and LTC4 by reverse phase high-pressure liquid chromatography (RP-HPLC) and radioimmunoassay (RIA) and for in vitro neutrophil chemotactic activity and histamine contents. Both hair and plant extracts contained high levels of LTB4 and LTC4 by RIA as well as histamine. The presence of LTB4 was supported by RP-HPLC elution profiles and by in vitro chemotaxis. Nettle hairs therefore resemble insect venoms and cutaneous mast cells with regard to their spectrum of mediators.
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Affiliation(s)
- B M Czarnetzki
- University Clinics, Department of Dermatology, Münster, FRG
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Espenhayn F, Thiele T. [The acid etching technic in prosthetic bridges]. Stomatol DDR 1986; 36:36-9. [PMID: 3526641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Thiele T. [Supplementary notes on WIG fine welding in the casting technic]. Zahntechnik (Berl) 1980; 21:145-7. [PMID: 6110299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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