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Di Cesare Mannelli L, Balayssac D, Busserolles J, Dalbos C, Prival L, Richard D, Quintana M, Micheli L, Toti A, Ferrara V, Ghelardini C, Vlasakova K, Glaab W, Hu Y, Loryan I, Wursch K, Dubost V, Johnson E, Penrrat K, Theil D. P16-11 In search of sensitive safety biomarkers of peripheral neurotoxicity in the rat: a collaborative effort across industry and academia (IMI NeuroDeRisk project). Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.601] [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: 11/16/2022]
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Theil D, Jullien de Pommerol H, Kuhle J, Brees D, Tritto E, Valentin M, Hartmann A. P.271Potential translation of neurofilament light chain (NfL) as a safety biomarker for neurotoxicity in spinal muscular atrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moggs J, Couttet P, Lempiainen H, Vacchi-Suzzi C, Marcellin M, Luisier R, Scherbichler N, Unterberger E, Schwarz M, Dubost V, Theil D, Oakeley E, Starkey-Lewis P, Goldring C, Park K, Cordier A, Hahne F, Mueller A, Marrer E, Stiehl D, Moulin P, Brees D, Chibout SD, Terranova R, Grenet O. Non-coding RNA mechanisms and biomarkers of toxicity: from tissue to circulation. Toxicol Lett 2013. [DOI: 10.1016/j.toxlet.2013.06.172] [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: 11/27/2022]
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Krumbholz M, Theil D, Steinmeyer F, Cepok S, Hemmer B, Hofbauer M, Farina C, Derfuss T, Junker A, Arzberger T, Sinicina I, Hartle C, Newcombe J, Hohlfeld R, Meinl E. CCL19 is constitutively expressed in the CNS, up-regulated in neuroinflammation, active and also inactive multiple sclerosis lesions. J Neuroimmunol 2007; 190:72-9. [PMID: 17825430 DOI: 10.1016/j.jneuroim.2007.07.024] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Revised: 07/30/2007] [Accepted: 07/30/2007] [Indexed: 01/16/2023]
Abstract
CCL19 and CCL21 bind to CCR7, which is crucial for both inducing an immune response and establishing immunological tolerance. We report that in the normal human brain CCL19, but not CCL21, is transcribed, and detectable as a protein in tissue lysates and in cerebrospinal fluid. In both active and inactive multiple sclerosis (MS) lesions CCL19 transcripts were elevated. In cerebrospinal fluid from MS and OIND patients CCL19 protein was increased. In relapsing-remitting and secondary progressive MS patients CCL19 correlated with intrathecal IgG production. This study suggests that CCL19 plays a role in both the physiological immunosurveillance of the healthy CNS and the pathological maintenance of immune cells in the CNS of MS patients.
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Affiliation(s)
- M Krumbholz
- Department of Neuroimmunology, Max-Planck-Institute of Neurobiology, Am Klopferspitz 18, Martinsried, Germany
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Hüfner K, Arbusow V, Himmelein S, Derfuss T, Strupp M, Brandt T, Theil D. Prevalence of HHV-6 in human sensory ganglia. Akt Neurol 2007. [DOI: 10.1055/s-2007-987476] [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: 10/21/2022]
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Abstract
We examined 103 patients with vestibular neuritis (VN) in a follow-up study (5.7 to 20.5 years, mean 9.8 years). Two patients (1.9%) had developed a second occurrence of VN 29 to 39 months after the first. VN affected the contralateral ear in both and caused less severe distressing vertigo and postural imbalance. Unlike Bell's palsy and sudden hearing loss, a relapse in the same ear did not occur.
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Affiliation(s)
- D Huppert
- Department of Neurology, Klinikum Grosshadern, Marchioninistrasse 15, 81377 München, Germany
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Goldman A, Theil D, Rosenblatt W. The Laryngeal Mask Airway CTracha; a multicenter observational series of 230 cases. J Clin Anesth 2006. [DOI: 10.1016/j.jclinane.2006.05.002] [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: 10/24/2022]
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Theil D, Arbusow V, Derfuss T, Strupp M, Pfeiffer M, Mascolo A, Brandt T. Prevalence of HSV-1 LAT in human trigeminal, geniculate, and vestibular ganglia and its implication for cranial nerve syndromes. Brain Pathol 2006; 11:408-13. [PMID: 11556685 PMCID: PMC8098601 DOI: 10.1111/j.1750-3639.2001.tb00408.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [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: 11/27/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) enters sensory neurons and can remain latent there until reactivation. During latency restricted HSV-1 gene expression takes place in the form of latency-associated transcripts (LAT). LAT has been demonstrated to be important not only for latency but also for reactivation, which may cause cranial nerve disorders. Tissue sections of the trigeminal ganglia (TG), geniculate ganglia (GG), and the vestibular ganglia (VG) from seven subjects were examined for the presence of LAT using the in situ hybridization technique. LAT was found on both sides in allTG (100%), on both sides of five subjects (70%) in the GG, and in none of the VG. Using a second more sensitive detection method (RT-PCR), we found LAT in the VG of seven of ten other persons (70%). This is the first study to demonstrate viral latency in the VG, a finding that supports the hypothesis that vestibular neuritis is caused by HSV-1 reactivation. The distribution of LAT in the cranial nerve ganglia indicates that primary infection occurs in the TG and GG and subsequently spreads along the faciovestibular anastomosis to the VG.
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Affiliation(s)
- D Theil
- Department of Neurology, Klinikum Grosshadern, LMU Munich, Germany.
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Theil D, Farina C, Meinl E. Differential expression of CD150 (SLAM) on monocytes and macrophages in chronic inflammatory contexts: abundant in Crohn's disease, but not in multiple sclerosis. J Clin Pathol 2005; 58:110-1. [PMID: 15623499 PMCID: PMC1770551 DOI: 10.1136/jcp.2004.019323] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- D Theil
- Department of Neurology, Ludwig-Maximilians University, D-81377 Munich, Germany
| | - C Farina
- Department of Neuroimmunology, Max-Planck-Institute of Neurobiology, D-82152 Martinsried, Germany;
| | - E Meinl
- Institute for Clinical Neuroimmunology, Ludwig-Maximilians University
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Abstract
Reactivation of herpes simplex virus type 1 (HSV-1) in the vestibular ganglion (VG) is the suspected cause of vestibular neuritis (VN). Recent studies reported the presence of HSV-1 DNA not only in human VGs but also in vestibular nuclei, a finding that indicates the possibility of viral migration to the human vestibular labyrinth. Distribution of HSV-1 DNA was determined in geniculate ganglia, VGs, semicircular canals, and macula organs of 21 randomly obtained human temporal bones by nested PCR. Viral DNA was detected in 48% of the labyrinths, 62% of the VGs, and 57% of the geniculate ganglia. The potential significance of this finding is twofold: (1) Inflammation in VN could also involve the labyrinth and thereby cause acute unilateral vestibular deafferentation. (2) As benign paroxysmal positional vertigo often occurs in patients who have had VN, it could also be a sequel of viral labyrinthitis.
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Affiliation(s)
- V Arbusow
- Department of Neurology, Klinikum Grosshadern, Ludwig Maximilians University, Munich, Germany.
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Theil D, Fatzer R, Meyer R, Schobesberger M, Zurbriggen A, Vandevelde M. Nuclear DNA fragmentation and immune reactivity in bovine spongiform encephalopathy. J Comp Pathol 1999; 121:357-67. [PMID: 10542125 DOI: 10.1053/jcpa.1999.0333] [Citation(s) in RCA: 15] [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: 11/11/2022]
Abstract
To investigate whether apoptosis contributes to neuronal degeneration in bovine spongiform encephalopathy (BSE), morphological changes consistent with apoptosis were sought and in-situ end labelling (ISEL) was applied, in a series of 20 BSE cases and 10 age-matched normal control cattle. Apoptotic changes were not found in neurons but were occasionally seen in glial cells. Relatively few ISEL-positive neurons were found, but many labelled nuclei were seen in glial cells in certain areas. None of the labelled cells showed morphological features of apoptosis. ISEL(+)cells occurred in areas of spongiform change and other areas of grey matter lacking spongiform change. Some association was found between degree of cellular DNA fragmentation and accumulation of abnormal prion protein (PrP(Sc)). Interestingly, small or moderate numbers of T lymphocytes, not present in the normal central nervous system (CNS), were detected in the CNS parenchyma in most BSE cases. There was a pronounced astrogliosis, but markers of macrophage or microglial activation were only slightly increased. The results indicate that nuclear DNA vulnerability is enhanced in certain neuroanatomical areas in BSE, but evidence that apoptosis plays a role in neuronal loss in BSE was very limited. 1999 Harcourt Publishers Ltd.
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Affiliation(s)
- D Theil
- Institute of Animal Neurology, University of Berne, Bremgartenstrasse 109a, Switzerland
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Theil D, Fatzer R, Schiller I, Caplazi P, Zurbriggen A, Vandevelde M. Neuropathological and aetiological studies of sporadic non-suppurative meningoencephalomyelitis of cattle. Vet Rec 1998; 143:244-9. [PMID: 9773471 DOI: 10.1136/vr.143.9.244] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [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: 11/04/2022]
Abstract
Sporadically occurring non-suppurative encephalitis appears to be a frequent condition of Swiss cattle. Fifty-one such cases diagnosed over a period of 10 years were examined retrospectively to investigate whether they constituted one or more distinct diseases, and to search for aetiological agents. Three cases were characterised by periventricular granulomatous encephalitis, and most probably represented a different disease, but the remaining 48 cases had disseminated non-suppurative encephalitis with widespread neuronal changes. Neuronal degeneration was very marked in the hippocampus of 10 cases and in the cerebellar Purkinje cells of 11. It was thought that the latter cases represented morphological variations of the same disease rather than a different disease because of their overlapping morphological features. The 48 cases had the following features in common: the disease had primarily neurological signs affecting mostly adult cattle, it was a sporadic condition, and there was a clear tendency for it to have a subacute to chronic course. Polymerase chain reaction (PCR) amplification for chlamydial DNA was negative except in one of 32 specimens, and immunohistochemistry did not demonstrate the presence of chlamydial antigens either in the one PCR-positive case or in the other cases examined. Immunohistochemistry for rabies virus, Borna disease virus, and central European tickborne encephalitis virus was negative. In four cases, immunolabelled cells were found in the lesions with antibodies against paramyxovirus antigens.
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Affiliation(s)
- D Theil
- Institute of Animal Neurology, BSE Reference Centre, University of Berne, Switzerland
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Theil D, Hoop R, Herring AJ, Pospischil A. Detection of Chlamydia in formalin-fixed and paraffin-embedded avian tissue by in situ hybridization. A comparison between in situ hybridization and peroxidase-antiperoxidase labelling. Zentralbl Veterinarmed B 1996; 43:365-70. [PMID: 8794699 DOI: 10.1111/j.1439-0450.1996.tb00327.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In situ hybridization, (ISH) using a digoxigenin-antisense RNA-probe to detect chlamydial rRNA was applied to post mortem tissue of birds. The technique was optimized and validated using tissue from experimentally-infected chicken embryos. Tissue sections were also tested by immunohistochemistry (peroxidase-antiperoxidase reaction, PAP) for the presence of chlamydial antigen using a genus specific monoclonal antibody. In the chicken embryo tissue, ISH and PAP were comparably sensitive and specific (100% and 100%, respectively). ISH and PAP in general were correlated to microscopic lesions. For further comparison, ISH with PAP was applied retrospectively to tissues of 82 birds from which Chlamydia had been isolated, or which were suggestive of chlamydiosis. Using in situ hybridization 47 of 82 birds were found to be positive, and as were 23 of 82 birds with PAP. None of the ISH-only positive cases were found to be strongly positive. On the other hand, cases which were found positive with the ISH were also positive with other methods (PAP and isolation of Chlamydiae from chicken embryos). There was no close correlation between the positive cells and histological lesions. In spite of the higher sensitivity and specificity of the ISH, this technique is not suitable for routine diagnostic investigations. ISH is expensive, laborious, and time consuming.
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Affiliation(s)
- D Theil
- Institut für Veterinärpathologie, Zürich, Switzerland
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