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Shafie INF, Rupp A, Hammond G, Gutierrez-Quintana R. Acute onset of circling and altered mentation in an 8-year-old cat. J Am Vet Med Assoc 2024:1-4. [PMID: 38688316 DOI: 10.2460/javma.24.02.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/19/2024] [Indexed: 05/02/2024]
Affiliation(s)
- Intan Nur Fatiha Shafie
- 1Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia
| | - Angie Rupp
- 2School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Gawain Hammond
- 2School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Rodrigo Gutierrez-Quintana
- 2School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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2
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Christen M, Gregor A, Gutierrez-Quintana R, Bongers J, Rupp A, Penderis J, Shelton GD, Jagannathan V, Zweier C, Leeb T. NDUFS7 variant in dogs with Leigh syndrome and its functional validation in a Drosophila melanogaster model. Sci Rep 2024; 14:2975. [PMID: 38316835 PMCID: PMC10844639 DOI: 10.1038/s41598-024-53314-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/30/2024] [Indexed: 02/07/2024] Open
Abstract
Two Jack-Russell Terrier × Chihuahua mixed-breed littermates with Leigh syndrome were investigated. The dogs presented with progressive ataxia, dystonia, and increased lactate levels. Brain MRI showed characteristic bilateral symmetrical T2 hyperintense lesions, histologically representing encephalomalacia. Muscle histopathology revealed accumulation of mitochondria. Whole genome sequencing identified a missense variant in a gene associated with human Leigh syndrome, NDUFS7:c.535G > A or p.(Val179Met). The genotypes at the variant co-segregated with the phenotype in the investigated litter as expected for a monogenic autosomal recessive mode of inheritance. We investigated the functional consequences of the missense variant in a Drosophila melanogaster model by expressing recombinant wildtype or mutant canine NDUFS7 in a ubiquitous knockdown model of the fly ortholog ND-20. Neither of the investigated overexpression lines completely rescued the lethality upon knockdown of the endogenous ND-20. However, a partial rescue was found upon overexpression of wildtype NDUFS7, where pupal lethality was moved to later developmental stages, which was not seen upon canine mutant overexpression, thus providing additional evidence for the pathogenicity of the identified variant. Our results show the potential of the fruit fly as a model for canine disease allele validation and establish NDUFS7:p.(Val179Met) as causative variant for the investigated canine Leigh syndrome.
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Affiliation(s)
- Matthias Christen
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Anne Gregor
- Department of Human Genetics, Inselspital, University of Bern, Bern, Switzerland
- Department for Biomedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Rodrigo Gutierrez-Quintana
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jos Bongers
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Angie Rupp
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - G Diane Shelton
- Department of Pathology, School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Christiane Zweier
- Department of Human Genetics, Inselspital, University of Bern, Bern, Switzerland
- Department for Biomedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
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Beekly BG, Rupp A, Burgess CR, Elias CF. Fast neurotransmitter identity of MCH neurons: Do contents depend on context? Front Neuroendocrinol 2023; 70:101069. [PMID: 37149229 DOI: 10.1016/j.yfrne.2023.101069] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/07/2023] [Accepted: 04/29/2023] [Indexed: 05/08/2023]
Abstract
Hypothalamic melanin-concentrating hormone (MCH) neurons participate in many fundamental neuroendocrine processes. While some of their effects can be attributed to MCH itself, others appear to depend on co-released neurotransmitters. Historically, the subject of fast neurotransmitter co-release from MCH neurons has been contentious, with data to support MCH neurons releasing GABA, glutamate, both, and neither. Rather than assuming a position in that debate, this review considers the evidence for all sides and presents an alternative explanation: neurochemical identity, including classical neurotransmitter content, is subject to change. With an emphasis on the variability of experimental details, we posit that MCH neurons may release GABA and/or glutamate at different points according to environmental and contextual factors. Through the lens of the MCH system, we offer evidence that the field of neuroendocrinology would benefit from a more nuanced and dynamic interpretation of neurotransmitter identity.
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Affiliation(s)
- B G Beekly
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, United States; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States; Elizabeth W. Caswell Diabetes Institute, University of Michigan, Ann Arbor, MI, United States.
| | - A Rupp
- Elizabeth W. Caswell Diabetes Institute, University of Michigan, Ann Arbor, MI, United States
| | - C R Burgess
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, United States; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States; Michigan Neuroscience Institute, University of Michigan, Ann Arbor, MI, United States
| | - C F Elias
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, United States; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States; Elizabeth W. Caswell Diabetes Institute, University of Michigan, Ann Arbor, MI, United States
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4
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Halstead SK, Jackson M, Bianchi E, Rupp S, Granger N, Menchetti M, Galli G, Freeman P, Kaczmarska A, Bhatti SFM, Brocal J, José‐López R, Tipold A, Gutierrez Quintana R, Ives EJ, Liatis T, Nessler J, Rusbridge C, Willison HJ, Rupp A. Serum anti-GM2 and anti-GalNAc-GD1a ganglioside IgG antibodies are biomarkers for immune-mediated polyneuropathies in cats. J Peripher Nerv Syst 2023; 28:32-40. [PMID: 36573790 PMCID: PMC10946849 DOI: 10.1111/jns.12529] [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: 09/22/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022]
Abstract
Recent work identified anti-GM2 and anti-GalNAc-GD1a IgG ganglioside antibodies as biomarkers in dogs clinically diagnosed with acute canine polyradiculoneuritis, in turn considered a canine equivalent of Guillain-Barré syndrome. This study aims to investigate the serum prevalence of similar antibodies in cats clinically diagnosed with immune-mediated polyneuropathies. The sera from 41 cats clinically diagnosed with immune-mediated polyneuropathies (IPN), 9 cats with other neurological or neuromuscular disorders (ONM) and 46 neurologically normal cats (CTRL) were examined for the presence of IgG antibodies against glycolipids GM1, GM2, GD1a, GD1b, GalNAc-GD1a, GA1, SGPG, LM1, galactocerebroside and sulphatide. A total of 29/41 IPN-cats had either anti-GM2 or anti-GalNAc-GD1a IgG antibodies, with 24/29 cats having both. Direct comparison of anti-GM2 (sensitivity: 70.7%; specificity: 78.2%) and anti-GalNAc-GD1a (sensitivity: 70.7%; specificity: 70.9%) antibodies narrowly showed anti-GM2 IgG antibodies to be the better marker for identifying IPN-cats when compared to the combined ONM and CTRL groups (P = .049). Anti-GA1 and/or anti-sulphatide IgG antibodies were ubiquitously present across all sample groups, whereas antibodies against GM1, GD1a, GD1b, SGPG, LM1 and galactocerebroside were overall only rarely observed. Anti-GM2 and anti-GalNAc-GD1a IgG antibodies may serve as serum biomarkers for immune-mediated polyneuropathies in cats, as previously observed in dogs and humans.
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Affiliation(s)
- Susan K. Halstead
- Neuroimmunology Laboratories, School of Infection and ImmunityUniversity of GlasgowGlasgowUK
| | - Mark Jackson
- School of Cancer SciencesUniversity of GlasgowBearsdenUK
| | - Ezio Bianchi
- Department of Veterinary ScienceUniversity of ParmaParmaItaly
| | | | - Nicolas Granger
- Queen Mother Hospital for Animals, Royal Veterinary CollegeUniversity of LondonHatfieldUK
- CVS ReferralsBristol Veterinary SpecialistsBristolUK
| | - Marika Menchetti
- Neurology and Neurosurgery DivisionSan Marco Veterinary Clinic and LaboratoryVeggianoItaly
| | - Greta Galli
- Neurology and Neurosurgery DivisionSan Marco Veterinary Clinic and LaboratoryVeggianoItaly
| | - Paul Freeman
- Queens Veterinary School Hospital, Dept of Veterinary MedicineUniversity of CambridgeCambridgeUK
| | - Adriana Kaczmarska
- Small Animal Hospital, School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | - Sofie F. M. Bhatti
- Small Animal Department, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | | | | | - Andrea Tipold
- Department of Small Animal Medicine and SurgeryUniversity of Veterinary Medicine FoundationHannoverGermany
| | - Rodrigo Gutierrez Quintana
- Small Animal Hospital, School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | | | - Theofanis Liatis
- Queen Mother Hospital for Animals, Royal Veterinary CollegeUniversity of LondonHatfieldUK
- Small Animal Hospital, School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | - Jasmin Nessler
- Department of Small Animal Medicine and SurgeryUniversity of Veterinary Medicine FoundationHannoverGermany
| | - Clare Rusbridge
- School of Veterinary MedicineThe University of SurreyGuildfordUK
| | - Hugh J. Willison
- Neuroimmunology Laboratories, School of Infection and ImmunityUniversity of GlasgowGlasgowUK
| | - Angie Rupp
- Division of Pathology, Public Health and Disease Investigation, School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
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5
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Mattei C, Oevermann A, Schweizer D, Guevar J, Maddox TW, Fleming KL, Ricci E, Rosati M, Biserni R, Iv JFG, Rupp A, Gutierrez-Quintana R, Masseau I, Newkirk KM, Hecht S, Specchi S. MRI ischemic and hemorrhagic lesions in arterial and venous territories characterize central nervous system intravascular lymphoma in dogs. Vet Radiol Ultrasound 2023; 64:294-305. [PMID: 36329600 DOI: 10.1111/vru.13165] [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: 04/29/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 11/06/2022] Open
Abstract
Intravascular lymphoma (IVL) is characterized by the proliferation of large malignant lymphocytes within the lumen of blood vessels. This retrospective, multi-center, case series study aimed to describe the MRI features of confirmed central nervous system IVL in dogs and compare them with histopathological findings. Medical record databases from seven veterinary centers were searched for cases of histologically confirmed IVL. Dogs were included if an MRI was performed. The MRI studies and histopathology samples were reviewed to compare the MRI changes with the histopathological findings. Twelve dogs met the inclusion criteria (12 brains and three spinal cords). Imaging of the brains revealed multifocal T2-weighted/FLAIR hyperintense and T1-weighted iso-hypointense lesions, with variable contrast enhancement; areas of abnormal diffusion both in arterial and venous territories in diffusion-weighted imaging; and meningeal enhancement. On gradient echo images (GRE), the changes comprised tubular susceptibility artifacts, consistent with the "susceptibility vessel sign", and additional variably sized/shaped intraparenchymal susceptibility artifacts. Spinal cord lesions presented as fusiform T2-weighted hyperintensities with scattered susceptibility artifacts on GRE and variable parenchymal and meningeal contrast enhancement. On histopathology, subarachnoid hemorrhages and neuroparenchymal areas of edema and necrosis, with or without hemorrhage, indicating ischemic and hemorrhagic infarctions, were found. These lesions were concurrent with severely dilated meningeal and parenchymal arteries and veins plugged by neoplastic lymphocytes and fibrin. Due to the unique angiocentric distribution of IVL, ischemic and hemorrhagic infarcts of variable chronicity affecting both the arterial and venous territories associated with thrombi formation can be detected on MRI.
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Affiliation(s)
- Chiara Mattei
- Diagnostic Imaging Department (Mattei, Specchi) and Neurology Department (Biserni), Ospedale Veterinario "I Portoni Rossi", Anicura Italy, Zola Predosa, Italy
| | - Anna Oevermann
- Division of Neurological Sciences, Department of Clinical Research and Veterinary Public Health (Oevermann), Division of Clinical Radiology, Department of Clinical Veterinary Medicine (Schweizer), Division of Small Animal Surgery, Department of Clinical Veterinary Sciences (Guevar), Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Daniela Schweizer
- Division of Neurological Sciences, Department of Clinical Research and Veterinary Public Health (Oevermann), Division of Clinical Radiology, Department of Clinical Veterinary Medicine (Schweizer), Division of Small Animal Surgery, Department of Clinical Veterinary Sciences (Guevar), Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Julien Guevar
- Division of Neurological Sciences, Department of Clinical Research and Veterinary Public Health (Oevermann), Division of Clinical Radiology, Department of Clinical Veterinary Medicine (Schweizer), Division of Small Animal Surgery, Department of Clinical Veterinary Sciences (Guevar), Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Thomas W Maddox
- Department of Musculoskeletal and Ageing Sciences- Institute of Life Course and Medical Science- Faculty of Health & Life Sciences (Maddox), Department of Veterinary Science- School of Veterinary Science (Fleming), Department of Veterinary Anatomy- Physiology and Pathology- Institute of Infection- Veterinary and Ecological Sciences (Ricci), University of Liverpool, Neston, UK
| | - Kathryn L Fleming
- Department of Musculoskeletal and Ageing Sciences- Institute of Life Course and Medical Science- Faculty of Health & Life Sciences (Maddox), Department of Veterinary Science- School of Veterinary Science (Fleming), Department of Veterinary Anatomy- Physiology and Pathology- Institute of Infection- Veterinary and Ecological Sciences (Ricci), University of Liverpool, Neston, UK
| | - Emanuele Ricci
- Department of Musculoskeletal and Ageing Sciences- Institute of Life Course and Medical Science- Faculty of Health & Life Sciences (Maddox), Department of Veterinary Science- School of Veterinary Science (Fleming), Department of Veterinary Anatomy- Physiology and Pathology- Institute of Infection- Veterinary and Ecological Sciences (Ricci), University of Liverpool, Neston, UK
| | - Marco Rosati
- Section of Clinical & Comparative Neuropathology, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-Universität, Munich, Germany
| | - Roberta Biserni
- Diagnostic Imaging Department (Mattei, Specchi) and Neurology Department (Biserni), Ospedale Veterinario "I Portoni Rossi", Anicura Italy, Zola Predosa, Italy
| | - John F Griffin Iv
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Angie Rupp
- Small Animal Hospital (Gutierrez-Quintana), Division of Pathology, Public Health and Disease Investigation (Rupp), School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Rodrigo Gutierrez-Quintana
- Small Animal Hospital (Gutierrez-Quintana), Division of Pathology, Public Health and Disease Investigation (Rupp), School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Isabelle Masseau
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Quebec, Canada
| | - Kimberly M Newkirk
- Department of Biomedical and Diagnostic Sciences (Newkirk), Department of Small Animal Clinical Sciences (Hecht), University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee, USA
| | - Silke Hecht
- Department of Biomedical and Diagnostic Sciences (Newkirk), Department of Small Animal Clinical Sciences (Hecht), University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee, USA
| | - Swan Specchi
- Diagnostic Imaging Department (Mattei, Specchi) and Neurology Department (Biserni), Ospedale Veterinario "I Portoni Rossi", Anicura Italy, Zola Predosa, Italy
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6
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Christen M, Gutierrez‐Quintana R, Vandenberghe H, Kaczmarska A, Penderis J, José‐López R, Rupp A, Griffiths IR, Jagannathan V, Leeb T. Mitochondrial fission factor (MFF) frameshift variant in Bullmastiffs with mitochondrial fission encephalopathy. Anim Genet 2022; 53:814-820. [PMID: 36085405 PMCID: PMC9826423 DOI: 10.1111/age.13263] [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: 06/01/2022] [Revised: 07/20/2022] [Accepted: 08/24/2022] [Indexed: 01/11/2023]
Abstract
Familial cerebellar ataxia with hydrocephalus in Bullmastiffs was described almost 40 years ago as a monogenic autosomal recessive trait. We investigated two young Bullmastiffs showing similar clinical signs. They developed progressive gait and behavioural abnormalities with an onset at around 6 months of age. Neurological assessment was consistent with a multifocal brain disease. Magnetic resonance imaging of the brain showed intra-axial bilateral symmetrical focal lesions localised to the cerebellar nuclei. Based on the juvenile age, nature of neurological deficits and imaging findings, an inherited disorder of the brain was suspected. We sequenced the genome of one affected Bullmastiff. The data were compared with 782 control genomes of dogs from diverse breeds. This search revealed a private homozygous frameshift variant in the MFF gene in the affected dog, XM_038574000.1:c.471_475delinsCGCTCT, that is predicted to truncate 55% of the wild type MFF open reading frame, XP_038429928.1: p.(Glu158Alafs*14). Human patients with pathogenic MFF variants suffer from 'encephalopathy due to defective mitochondrial and peroxisomal fission 2'. Archived samples from two additional affected Bullmastiffs related to the originally described cases were obtained. Genotypes in a cohort of four affected and 70 unaffected Bullmastiffs showed perfect segregation with the disease phenotype. The available data together with information from previous disease reports allow classification of the investigated MFF frameshift variant as pathogenic and probably causative defect of the observed neurological phenotype. In analogy to the human phenotype, we propose to rename this disease 'mitochondrial fission encephalopathy (MFE)'.
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Affiliation(s)
- Matthias Christen
- Institute of Genetics, Vetsuisse FacultyUniversity of BernBernSwitzerland
| | - Rodrigo Gutierrez‐Quintana
- School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | | | - Adriana Kaczmarska
- School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | | | | | - Angie Rupp
- School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Ian R. Griffiths
- School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse FacultyUniversity of BernBernSwitzerland
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse FacultyUniversity of BernBernSwitzerland
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Halstead SK, Gourlay DS, Penderis J, Bianchi E, Dondi M, Wessmann A, Musteata M, Le Chevoir M, Martinez-Anton L, Bhatti SFM, Volk H, Mateo I, Tipold A, Ives E, Pakozdy A, Gutierrez-Quintana R, Brocal J, Whitehead Z, Granger N, Pazzi P, Harcourt-Brown T, José-López R, Rupp S, Schenk HC, Smith P, Gandini G, Menchetti M, Mortera-Balsa V, Rusbridge C, Tauro A, Cozzi F, Deutschland M, Tirrito F, Freeman P, Lowrie M, Jackson MR, Willison HJ, Rupp A. Serum anti-GM2 and anti-GalNAc-GD1a IgG antibodies are biomarkers for acute canine polyradiculoneuritis. J Small Anim Pract 2022; 63:104-112. [PMID: 34791652 DOI: 10.1111/jsap.13439] [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] [Received: 10/01/2020] [Revised: 08/13/2021] [Accepted: 09/19/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES A previous single-country pilot study indicated serum anti-GM2 and anti-GA1 anti-glycolipid antibodies as potential biomarkers for acute canine polyradiculoneuritis. This study aims to validate these findings in a large geographically heterogenous cohort. MATERIALS AND METHODS Sera from 175 dogs clinically diagnosed with acute canine polyradiculoneuritis, 112 dogs with other peripheral nerve, cranial nerve or neuromuscular disorders and 226 neurologically normal dogs were screened for anti-glycolipid antibodies against 11 common glycolipid targets to determine the immunoglobulin G anti-glycolipid antibodies with the highest combined sensitivity and specificity for acute canine polyradiculoneuritis. RESULTS Anti-GM2 anti-glycolipid antibodies reached the highest combined sensitivity and specificity (sensitivity: 65.1%, 95% confidence interval 57.6 to 72.2%; specificity: 90.2%, 95% confidence interval 83.1 to 95.0%), followed by anti-GalNAc-GD1a anti-glycolipid antibodies (sensitivity: 61.7%, 95% confidence interval 54.1 to 68.9%; specificity: 89.3%, 95% confidence interval 82.0 to 94.3%) and these anti-glycolipid antibodies were frequently present concomitantly. Anti-GA1 anti-glycolipid antibodies were detected in both acute canine polyradiculoneuritis and control animals. Both for anti-GM2 and anti-GalNAc-GD1a anti-glycolipid antibodies, sex was found a significantly associated factor with a female to male odds ratio of 2.55 (1.27 to 5.31) and 3.00 (1.22 to 7.89), respectively. Anti-GalNAc-GD1a anti-glycolipid antibodies were more commonly observed in dogs unable to walk (OR 4.56, 1.56 to 14.87). CLINICAL SIGNIFICANCE Anti-GM2 and anti-GalNAc-GD1a immunoglobulin G anti-glycolipid antibodies represent serum biomarkers for acute canine polyradiculoneuritis.
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Affiliation(s)
- S K Halstead
- Neuroimmunology Laboratory, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, G12 8TA, UK
| | - D S Gourlay
- Neuroimmunology Laboratory, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, G12 8TA, UK
| | - J Penderis
- Vet Extra Neurology, Broadleys Veterinary Hospital, Stirling, FK7 7LE, UK
| | - E Bianchi
- Department of Veterinary Science, University of Parma, 43126, Parma, Italy
| | - M Dondi
- Department of Veterinary Science, University of Parma, 43126, Parma, Italy
| | - A Wessmann
- Neurology and Neurosurgery Service, Pride Veterinary Centre, Pride Park, Derby, DE24 8HX, UK
| | - M Musteata
- Neurology Service, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Iași, 700489, Romania
| | - M Le Chevoir
- Department of Neurology and Neurosurgery, University of Melbourne, Werribee, Victoria, 3030, Australia
| | - L Martinez-Anton
- Chestergates Veterinary Specialists, Telford Court, Chestergates, CH1 6LT, UK
| | - S F M Bhatti
- Small Animal Department, Small Animal Teaching Hospital, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
| | - H Volk
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - I Mateo
- Servicio de Neurología, Hospital Clínico Veterinario - Universidad Alfonso X el Sabio, Madrid, Spain
| | - A Tipold
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - E Ives
- Anderson Moores Veterinary Specialists, Hursley, Winchester, SO21 2LL, UK
| | - A Pakozdy
- University Hospital for Small Animals, University of Veterinary Medicine, Vienna, Austria
| | | | - J Brocal
- Wear Referrals Veterinary Hospital, Bradbury, Stockton-on-Tees, TS21 2ES, UK
| | - Z Whitehead
- Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, 0110, South Africa
| | - N Granger
- The Royal Veterinary College, University of London, Hatfield, Hertfordshire, UK.,CVS Referrals, Bristol Veterinary Specialists at Highcroft, Bristol, UK
| | - P Pazzi
- Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, 0110, South Africa
| | - T Harcourt-Brown
- Langford Veterinary Services, School of Veterinary Sciences, University of Bristol, Lower Langford, BS40 5DU, UK
| | - R José-López
- School of Veterinary Medicine, University of Glasgow, Glasgow, G61 1QH, UK
| | - S Rupp
- Tierklinik Hofheim, 65719, Hofheim, Germany
| | - H C Schenk
- Tierklinik Lüneburg, 21337, Lüneburg, Germany
| | - P Smith
- Hamilton Specialist Referrals, Cressex Business Park, High Wycombe, HP12 3SD, UK
| | - G Gandini
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia, Italy
| | - M Menchetti
- Neurology and Neurosurgery Division, San Marco Veterinary Clinic, Veggiano, Italy
| | - V Mortera-Balsa
- North Downs Specialist Referrals, 3&4 The Brewerstreet Dairy Business Park, Bletchingley, Surrey, RH1 4QP, UK
| | - C Rusbridge
- Neurology Section, Fitzpatrick Referrals, Godalming, Surrey, GU2 7AL, UK.,School of Veterinary Medicine, Faculty of Health & Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7AL, UK
| | - A Tauro
- Chestergates Veterinary Specialists, Telford Court, Chestergates, CH1 6LT, UK
| | - F Cozzi
- Clinica Neurologica Veterinaria, 20148, Milan, Italy
| | | | - F Tirrito
- Clinica Neurologica Veterinaria, 20148, Milan, Italy
| | - P Freeman
- The Queen's Veterinary School Hospital, Cambridge, CB3 0ES, UK
| | - M Lowrie
- Dovecote Veterinary Hospital, Castle Donington, Derby, DE74 2LJ, UK
| | - M R Jackson
- Institute of Cancer Sciences, University of Glasgow, Bearsden, G61 1QH, UK
| | - H J Willison
- Neuroimmunology Laboratory, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, G12 8TA, UK
| | - A Rupp
- School of Veterinary Medicine, University of Glasgow, Glasgow, G61 1QH, UK
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8
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Jackson MR, Stevenson K, Chahal SK, Curley E, Finney GE, Gutierrez-Quintana R, Onwubiko E, Rupp A, Strathdee K, Williams K, MacLeod MKL, McSharry C, Chalmers AJ. Low-Dose Lung Radiation Therapy for COVID-19 Lung Disease: A Preclinical Efficacy Study in a Bleomycin Model of Pneumonitis. Int J Radiat Oncol Biol Phys 2022; 112:197-211. [PMID: 34478832 PMCID: PMC8406661 DOI: 10.1016/j.ijrobp.2021.08.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 03/10/2021] [Revised: 08/05/2021] [Accepted: 08/24/2021] [Indexed: 01/13/2023]
Abstract
PURPOSE Low-dose whole lung radiation therapy (LDLR) has been proposed as a treatment for patients with acute respiratory distress syndrome associated with SARS-CoV-2 infection, and clinical trials are underway. There is an urgent need for preclinical evidence to justify this approach and inform dose, scheduling, and mechanisms of action. METHODS AND MATERIALS Female C57BL/6 mice were treated with intranasal bleomycin sulfate (7.5 or 11.25 units/kg, day 0) and then exposed to whole lung radiation therapy (0.5, 1.0, or 1.5 Gy, or sham; day 3). Bodyweight was measured daily, and lung tissue was harvested for histology and flow cytometry on day 10. Computed tomography lung imaging was performed before radiation (day 3) and pre-endpoint (day 10). RESULTS Bleomycin caused pneumonitis of variable severity, which correlated with weight loss. LDLR at 1.0 Gy was associated with a significant increase in the proportion of mice recovering to 98% of initial bodyweight, and a proportion of these mice exhibited less severe histopathologic lung changes. Mice experiencing moderate initial weight loss were more likely to respond to LDLR than those experiencing severe initial weight loss. In addition, LDLR (1.0 Gy) significantly reduced bleomycin-induced increases in interstitial macrophages, CD103+ dendritic cells (DCs), and neutrophil-DC hybrids. Overall, bleomycin-treated mice exhibited significantly higher percentages of nonaerated lung in left than right lungs, and LDLR (1.0 Gy) limited further reductions in aerated lung volume in right but not left lungs. LDLR at 0.5 and 1.5 Gy did not improve bodyweight, flow cytometric, or radiologic readouts of bleomycin-induced pneumonitis. CONCLUSIONS Our data support the concept that LDLR can ameliorate acute inflammatory lung injury, identify 1.0 Gy as the most effective dose, and provide evidence that it is more effective in the context of moderate than severe pneumonitis. Mechanistically, LDLR at 1.0 Gy significantly suppressed bleomycin-induced accumulation of pulmonary interstitial macrophages, CD103+ DCs, and neutrophil-DC hybrids.
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Affiliation(s)
- Mark R Jackson
- Institute of Cancer Sciences, University of Glasgow, United Kingdom
| | | | - Sandeep K Chahal
- Institute of Cancer Sciences, University of Glasgow, United Kingdom
| | - Emer Curley
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
| | - George E Finney
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom
| | - Rodrigo Gutierrez-Quintana
- Institute of Cancer Sciences, University of Glasgow, United Kingdom; School of Veterinary Medicine, University of Glasgow, United Kingdom
| | | | - Angie Rupp
- School of Veterinary Medicine, University of Glasgow, United Kingdom
| | - Karen Strathdee
- Institute of Cancer Sciences, University of Glasgow, United Kingdom
| | - Karin Williams
- Institute of Cancer Sciences, University of Glasgow, United Kingdom
| | - Megan K L MacLeod
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom
| | - Charles McSharry
- Institute of Infection, Immunity and Inflammation, University of Glasgow, United Kingdom
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Chalmers A, Jackson M, Stevenson K, Chahal S, Curley E, Finney G, Gutierrez-Quintana R, Onwubiko E, Rupp A, Strathdee K, MacLeod M, McSharry C. PO-1916 Low-dose lung radiotherapy for COVID-19 pneumonia: preclinical studies in bleomycin pneumonitis. Radiother Oncol 2021. [PMCID: PMC8479313 DOI: 10.1016/s0167-8140(21)08367-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Pankow W, Andreas S, Rupp A, Pfeifer M. [Smoking Cessation with E-Cigarettes? - Ad Hoc Statement of the German Respiratory Society (DGP)]. Pneumologie 2020; 75:31-32. [PMID: 33285598 DOI: 10.1055/a-1323-6045] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The German Respiratory Society (DGP) turns against the e-cigarette as a means for harm reduction because of potential health risk and dangers to young people. The aerosol of e-cigarettes contains toxic ingredients that have been shown to be damaging to the lungs, the cardiovascular system and the immune system and are potentially carcinogenic. Studies on e-cigarettes as a means of smoking cessation are not very convincing, in order to favor e-cigarettes over nicotine replacement therapy, which have been tried and tested for many years, or other drugs that reduce the desire to smoke.
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Affiliation(s)
- W Pankow
- Vertreter der DGP im Aktionsbündnis Nichtrauchen e. V., Berlin
| | - S Andreas
- Vertreter der Deutschen Lungenstiftung e. V., Lungenfachklinik Immenhausen
| | - A Rupp
- Sprecher der Arbeitsgruppe Tabakprävention und -entwöhnung e. V., Pneumologische Praxis im Zentrum, Stuttgart
| | - M Pfeifer
- Präsident der DGP, Klinik und Poliklinik für Innere Medizin II, Universitätsklinikum Regensburg
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11
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Górska U, Rupp A, Celikel T, Englitz B. Assessing the state of consciousness for individual patients using complex, statistical stimuli. Neuroimage Clin 2020; 29:102471. [PMID: 33388561 PMCID: PMC7788231 DOI: 10.1016/j.nicl.2020.102471] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/29/2020] [Accepted: 10/14/2020] [Indexed: 12/01/2022]
Abstract
Patients with prolonged disorders of consciousness (PDOC) are often unable to communicate their state of consciousness. Determining the latter is essential for the patient's care and prospects of recovery. Auditory stimulation in combination with neural recordings is a promising technique towards an objective assessment of conscious awareness. Here, we investigated the potential of complex, acoustic stimuli to elicit EEG responses suitable for classifying multiple subject groups, from unconscious to responding. We presented naturalistic auditory textures with unexpectedly changing statistics to human listeners. Awake, active listeners were asked to indicate the change by button press, while all other groups (awake passive, asleep, minimally conscious state (MCS), and unresponsive wakefulness syndrome (UWS)) listened passively. We quantified the evoked potential at stimulus onset and change in stimulus statistics, as well as the complexity of neural response during the change of stimulus statistics. On the group level, onset and change potentials classified patients and healthy controls successfully but failed to differentiate between the UWS and MCS groups. Conversely, the Lempel-Ziv complexity of the scalp-level potential allowed reliable differentiation between UWS and MCS even for individual subjects, when compared with the clinical assessment aligned to the EEG measurements. The accuracy appears to improve further when taking the latest available clinical diagnosis into account. In summary, EEG signal complexity during onset and changes in complex acoustic stimuli provides an objective criterion for distinguishing states of consciousness in clinical patients. These results suggest EEG-recordings as a cost-effective tool to choose appropriate treatments for non-responsive PDOC patients.
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Affiliation(s)
- U Górska
- Computational Neuroscience Laboratory, Department of Neurophysiology, Donders Institute, Radboud University Nijmegen, The Netherlands; Psychophysiology Laboratory, Institute of Psychology, Jagiellonian University, Krakow, Poland; Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland.
| | - A Rupp
- Section of Biomagnetism, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - T Celikel
- Computational Neuroscience Laboratory, Department of Neurophysiology, Donders Institute, Radboud University Nijmegen, The Netherlands
| | - B Englitz
- Computational Neuroscience Laboratory, Department of Neurophysiology, Donders Institute, Radboud University Nijmegen, The Netherlands.
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12
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Faller KME, Ridyard AE, Gutierrez-Quintana R, Rupp A, Kun-Rodrigues C, Orme T, Tylee KL, Church HJ, Guerreiro R, Bras J. A deletion of IDUA exon 10 in a family of Golden Retriever dogs with an attenuated form of mucopolysaccharidosis type I. J Vet Intern Med 2020; 34:1813-1824. [PMID: 32785987 PMCID: PMC7517864 DOI: 10.1111/jvim.15868] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/11/2020] [Accepted: 07/22/2020] [Indexed: 01/07/2023] Open
Abstract
Background Mucopolysaccharidosis type I (MPS‐I) is a lysosomal storage disorder caused by a deficiency of the enzyme α‐l‐iduronidase, leading to accumulation of undegraded dermatan and heparan sulfates in the cells and secondary multiorgan dysfunction. In humans, depending upon the nature of the underlying mutation(s) in the IDUA gene, the condition presents with a spectrum of clinical severity. Objectives To characterize the clinical and biochemical phenotypes, and the genotype of a family of Golden Retriever dogs. Animals Two affected siblings and 11 related dogs. Methods Family study. Urine metabolic screening and leucocyte lysosomal enzyme activity assays were performed for biochemical characterization. Whole genome sequencing was used to identify the causal mutation. Results The clinical signs shown by the proband resemble the human attenuated form of the disease, with a dysmorphic appearance, musculoskeletal, ocular and cardiac defects, and survival to adulthood. Urinary metabolic studies identified high levels of dermatan sulfate, heparan sulfate, and heparin. Lysosomal enzyme activities demonstrated deficiency in α‐l‐iduronidase activity in leucocytes. Genome sequencing revealed a novel homozygous deletion of 287 bp resulting in full deletion of exon 10 of the IDUA gene (NC_006585.3(NM_001313883.1):c.1400‐76_1521+89del). Treatment with pentosan polyphosphate improved the clinical signs until euthanasia at 4.5 years. Conclusion and Clinical Importance Analysis of the genotype/phenotype correlation in this dog family suggests that dogs with MPS‐I could have a less severe phenotype than humans, even in the presence of severe mutations. Treatment with pentosan polyphosphate should be considered in dogs with MPS‐I.
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Affiliation(s)
- Kiterie M E Faller
- School of Veterinary Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom.,Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian, United Kingdom
| | - Alison E Ridyard
- School of Veterinary Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Rodrigo Gutierrez-Quintana
- School of Veterinary Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Angie Rupp
- School of Veterinary Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Celia Kun-Rodrigues
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom.,Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan, USA
| | - Tatiana Orme
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Karen L Tylee
- Willink Biochemical Genetics Unit, Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, St Mary's Hospital, Manchester, United Kingdom
| | - Heather J Church
- Willink Biochemical Genetics Unit, Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, St Mary's Hospital, Manchester, United Kingdom
| | - Rita Guerreiro
- Department of Neurodegenerative Diseases, Institute of Neurology, University College London, London, United Kingdom.,UK Dementia Research Institute at UCL (UK DRI), London, United Kingdom.,Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan, USA
| | - Jose Bras
- Department of Neurodegenerative Diseases, Institute of Neurology, University College London, London, United Kingdom.,UK Dementia Research Institute at UCL (UK DRI), London, United Kingdom.,Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan, USA
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Voss SJ, Barceló Oliver F, Rupp A, Raftery AG, Pollock PJ. Partial gastrectomy and total splenectomy for the treatment of a gastric mass in a horse. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.12953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. J. Voss
- School of Veterinary Medicine Weipers Centre Equine Hospital University of Glasgow UK
| | - F. Barceló Oliver
- The Royal (Dick) School of Veterinary Studies University of Edinburgh Easter Bush UK
| | - A. Rupp
- Division of Pathology, Public Health and Disease Investigation School of Veterinary Medicine University of Glasgow UK
| | - A. G. Raftery
- School of Veterinary Medicine Weipers Centre Equine Hospital University of Glasgow UK
| | - P. J. Pollock
- The Royal (Dick) School of Veterinary Studies University of Edinburgh Easter Bush UK
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14
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Capewell P, Rupp A, Fuentes M, McDonald M, Weir W. Fatal Clostridium sordellii-mediated hemorrhagic and necrotizing gastroenteropathy in a dog: case report. BMC Vet Res 2020; 16:152. [PMID: 32448314 PMCID: PMC7245850 DOI: 10.1186/s12917-020-02362-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Canine hemorrhagic gastroenteritis (also canine gastrointestinal hemorrhagic syndrome) is commonly associated with Clostridium perfringens, although in some cases the etiology remains unclear. This report describes a fatal acute hemorrhagic and necrotizing gastroenteropathy in a dog associated with Clostridium sordellii, a bacterial species never before identified as the etiological agent of hemorrhagic and necrotizing gastroenteropathy in dogs. CASE PRESENTATION A fully vaccinated, eight-year-old, female neutered Labrador presented with a history of vomiting without diarrhea. Clinical examination revealed pink mucous membranes, adequate hydration, normothermia, and normocardia. The dog was discovered deceased the following day. Post-mortem examination showed moderate amounts of dark red, non-clotted fluid within the stomach that extended into the jejunum. Discoloration was noted in the gastric mucosa, liver, lungs, and kidneys, with small petechial hemorrhages present in the endocardium over the right heart base and thymic remnants. Histological analysis demonstrated that the gastric fundic mucosa, the pyloric region, small intestine, and large intestine exhibited superficial coagulative necrosis and were lined with a layer of short Gram-positive rods. Anaerobic culture of the gastric content revealed C. sordellii as the dominant bacterial species and neither Salmonella spp., Campylobacter spp., C. perfringens, nor C. difficile were isolated. Unexpectedly, whole genome sequencing of the C. sordellii isolate showed that it lacked the main plasmid-encoded virulence factors typical of the species, indicating that the genetic determinants of pathogenicity of this strain must be chromosomally encoded. Further phylogenetic analysis revealed it to be genetically similar to C. sordellii isolates associated with gastroenteric disease in livestock, indicating that the infection may have been acquired from the environment. CONCLUSIONS This case demonstrates that C. sordellii can associate with a canine hemorrhagic and necrotizing gastroenteropathy in the absence of C. perfringens and illustrates the benefits of using bacterial whole genome sequencing to support pathological investigations in veterinary diagnostics. These data also update the molecular phylogeny of C. sordellii, indicating a possible pathogenic clade in the environment that is distinct from currently identified clades.
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Affiliation(s)
- Paul Capewell
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Urquhart Building, 464 Bearsden Road, Glasgow, G61 1QH, UK.
| | - Angie Rupp
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Urquhart Building, 464 Bearsden Road, Glasgow, G61 1QH, UK
| | - Manuel Fuentes
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Urquhart Building, 464 Bearsden Road, Glasgow, G61 1QH, UK
| | - Michael McDonald
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Urquhart Building, 464 Bearsden Road, Glasgow, G61 1QH, UK
| | - William Weir
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Urquhart Building, 464 Bearsden Road, Glasgow, G61 1QH, UK
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15
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Heid C, Mouraux A, Treede RD, Schuh-Hofer S, Rupp A, Baumgärtner U. Early gamma-oscillations as correlate of localized nociceptive processing in primary sensorimotor cortex. J Neurophysiol 2020; 123:1711-1726. [PMID: 32208893 DOI: 10.1152/jn.00444.2019] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 12/23/2022] Open
Abstract
Recent studies put forward the idea that stimulus-evoked gamma-band oscillations (GBOs; 30-100 Hz) play a specific role in nociception. So far, evidence for the specificity of GBOs for nociception, their possible involvement in nociceptive sensory discriminatory abilities, and knowledge regarding their cortical sources is just starting to grow. To address these questions, we used electroencephalography (EEG) to record brain activity evoked by phasic nociceptive laser stimuli and tactile stimuli applied at different intensities to the right hand and foot of 12 healthy volunteers. The EEG was analyzed in the time domain to extract phase-locked event-related brain potentials (ERPs) and in three regions of interest in the time-frequency domain (delta/theta, 40-Hz gamma, 70-Hz gamma) to extract stimulus-evoked changes in the magnitude of non-phase-locked brain oscillations. Both nociceptive and tactile stimuli, matched with respect to subjective intensity, elicited phase locked ERPs of increasing amplitude with increasing stimulus intensity. In contrast, only nociceptive stimuli elicited a significant enhancement of GBOs (65-85 Hz, 150-230 ms after stimulus onset), whose magnitude encoded stimulus intensity, whereas tactile stimuli led to a GBO decrease. Following nociceptive hand stimulation, the topographical distribution of GBOs was maximal at contralateral electrode C3, whereas maximum activity following foot stimulation was recorded at the midline electrode Cz, compatible with generation of GBOs in the representations of the hand and foot of the primary sensorimotor cortex, respectively. The differential behavior of high-frequency GBOs and low-frequency 40-Hz GBOs is indicating different functional roles and regions in sensory processing.NEW & NOTEWORTHY Gamma-band oscillations show hand-foot somatotopy compatible with generation in primary sensorimotor cortex and are present following nociceptive but not tactile stimulation of the hand and foot in humans.
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Affiliation(s)
- C Heid
- Department of Neurophysiology, Mannheim Center for Translational Neurosciences (MCTN), University of Heidelberg, Mannheim, Germany
| | - A Mouraux
- Institute of Neuroscience (IONS), Université catholique de Louvain, Brussels B-1200, Belgium
| | - R-D Treede
- Department of Neurophysiology, Mannheim Center for Translational Neurosciences (MCTN), University of Heidelberg, Mannheim, Germany
| | - S Schuh-Hofer
- Department of Neurophysiology, Mannheim Center for Translational Neurosciences (MCTN), University of Heidelberg, Mannheim, Germany
| | - A Rupp
- Department of Neurology, Section of Biomagnetism, University of Heidelberg, Heidelberg, Germany
| | - U Baumgärtner
- Department of Neurophysiology, Mannheim Center for Translational Neurosciences (MCTN), University of Heidelberg, Mannheim, Germany.,Department of Human Medicine, Faculty of Life Sciences, Medical School Hamburg (MSH), Hamburg, Germany
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16
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17
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Rupp A, Bosch A, Hössler J. Erste Evaluation des neuen Online-Entwöhnungsprogramms www.nichtraucherhelden.de. Pneumologie 2018. [DOI: 10.1055/s-0037-1619410] [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 Rupp
- Zentrum für Tabakentwöhnung; Pneumologische Praxis im Zentrum
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18
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Rupp A, Blank J, Mühlig S, Rüther T, Grah C, Ehmann M, Pousset R, Sehl A, Fuchs S, Linhardt A, Kreuter M. Steigerung der Effizienz der Tabakentwöhnung durch kürzere Maßnahmen? Ergebnisse der „Brief intervention study on Quitting smoking“ (BisQuits). Pneumologie 2015. [DOI: 10.1055/s-0035-1544777] [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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19
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Bovee M, Carranza E, Rupp A, O'Donnell A, Kato K, Pruyn J, Cuttita M, Almeida A. Post-discharge Cleaning Evaluation of High-touch Environmental Surfaces: A Stepping Stone in Advancing Cleaning Practices. Am J Infect Control 2014. [DOI: 10.1016/j.ajic.2014.03.116] [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: 10/25/2022]
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20
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Heimann J, Kreuter M, Heimann F, Ehmann R, Eulenbruch HP, Rupp A. Umsetzung der „5A“ als Minimalintervention in einer pneumologischen Gemeinschaftspraxis. Pneumologie 2014. [DOI: 10.1055/s-0034-1367887] [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: 10/25/2022]
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21
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Rupp A, Blank J, Ehmann M, Pousset R, Mühlig S, Sehl A, Fuchs S, Rüther T, Linhardt A, Grah C, Kreuter M. Basisdaten der „Brief Intervention Study for Quitting Smoking“ – BisQuits. Pneumologie 2014. [DOI: 10.1055/s-0034-1367889] [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: 10/25/2022]
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22
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Rupp A, Heimann J, Heimann F, Ehmann R, Eulenbruch HP, Kreuter M. Patientenbefragung in einer pneumologischen Gemeinschaftspraxis zum Rauchverhalten. Pneumologie 2014. [DOI: 10.1055/s-0034-1367888] [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: 10/25/2022]
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23
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Rupp A, Ives E, Rudorf H, Palmer A, Williams A, Constantino-Casas F. Sciatic T-cell Neurolymphomatosis in a Dog. J Comp Pathol 2014. [DOI: 10.1016/j.jcpa.2013.11.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Angie Rupp
- Department of Veterinary MedicineUniversity of CambridgeCambridgeUK
| | - Edward Ives
- Department of Veterinary MedicineUniversity of CambridgeCambridgeUK
| | - Heike Rudorf
- Department of Veterinary MedicineUniversity of CambridgeCambridgeUK
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25
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Rupp A, Galban-Horcajo F, Bianchi E, Dondi M, Penderis J, Cappell J, Burgess K, Matiasek K, McGonigal R, Willison HJ. Anti-GM2 ganglioside antibodies are a biomarker for acute canine polyradiculoneuritis. J Peripher Nerv Syst 2013; 18:75-88. [PMID: 23521648 DOI: 10.1111/jns5.12011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Acute canine polyradiculoneuritis (ACP) is considered to be the canine equivalent of the human peripheral nerve disorder Guillain-Barré syndrome (GBS); an aetiological relationship, however, remains to be demonstrated. In GBS, anti-glycolipid antibodies (Abs) are considered as important disease mediators. To address the possibility of common Ab biomarkers, the sera of 25 ACP dogs, 19 non-neurological, and 15 epileptic control dogs were screened for IgG Abs to 10 glycolipids and their 1 : 1 heteromeric complexes using combinatorial glycoarrays. Anti-GM2 ganglioside Abs were detected in 14/25 ACP dogs, and anti-GA1 Abs in one further dog. All controls except for one were negative for anti-glycolipid Abs. In this cohort of cases and controls, the glycoarray screen reached a diagnostic sensitivity of 60% and a specificity of 97%; a lower sensitivity (32%) was reported using a conventional glycolipid ELISA. To address the possible pathogenic role for anti-GM2 Abs in ACP, we identified GM2 in canine sciatic nerve by both mass spectrometry and thin layer chromatography overlay. In immunohistological studies, GM2 was localized predominantly to the abaxonal Schwann cell membrane. The presence of anti-GM2 Abs in ACP suggests that it may share a similar pathophysiology with GBS, for which it could thus be considered a naturally occurring animal model.
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Affiliation(s)
- Angie Rupp
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Francesc Galban-Horcajo
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Ezio Bianchi
- Veterinary Teaching Hospital, University of Parma, Parma, Italy.,Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Maurizio Dondi
- Veterinary Teaching Hospital, University of Parma, Parma, Italy
| | - Jacques Penderis
- School of Veterinary Medicine, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Joanna Cappell
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.,Glasgow Polyomics, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Karl Burgess
- Glasgow Polyomics, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Kaspar Matiasek
- Section of Clinical and Comparative Neuropathology, Department of Veterinary Clinical Sciences, Ludwig-Maximilians-University, Munich, Germany
| | - Rhona McGonigal
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Hugh J Willison
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Abstract
Abstract
Any dose rate instrument used to monitor environmental radiation must be characterized with respect to its response to secondary cosmic radiation and terrestrial radiation. This requires calibrations using different photon radiation fields, the measurement of the instruments internal background and the exposure to secondary cosmic radiation. The methods developed within the cooperation between BfS and PTB are explained in detail by an intercomparison of instruments which are part of the German early warning network IMIS and a high-pressure ionization chamber which was used as the reference instrument. The measurements were performed at the PTB facilities for the dosimetry of environmental radiation. It is shown how the ambient dose equivalent rate of the terrestrial radiation is determined and how the sensitivity of an instrument to a radioactive cloud passing by can be investigated.
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Affiliation(s)
- F. Wissmann
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany. E-mail:
| | - A. Rupp
- Bundesamt für Strahlenschutz, Willy-Brandt-Str. 5, D-38226 Salzgitter, Germany
| | - U. Stöhlker
- Bundesamt für Strahlenschutz, Willy-Brandt-Str. 5, D-38226 Salzgitter, Germany
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Rupp A, Cunningham ME, Yao D, Furukawa K, Willison HJ. The effects of age and ganglioside composition on the rate of motor nerve terminal regeneration following antibody-mediated injury in mice. Synapse 2013; 67:382-9. [PMID: 23401234 PMCID: PMC4495252 DOI: 10.1002/syn.21648] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 02/01/2013] [Indexed: 01/08/2023]
Abstract
Gangliosides are glycosphingolipids highly enriched in neural plasma membranes, where they mediate a diverse range of functions and can act as targets for auto-antibodies present in human immune-mediated neuropathy sera. The ensuing autoimmune injury results in axonal and motor nerve terminal (mNT) degeneration. Both aging and ganglioside-deficiency have been linked to impaired axonal regeneration. To assess the effects of age and ganglioside expression on mNT regeneration in an autoimmune injury paradigm, anti-ganglioside antibodies and complement were applied to young adult and aged mice wildtype (WT) mice, mice deficient in either b- and c-series (GD3sKO) or mice deficient in all complex gangliosides (GM2sKO). The extent of mNT injury and regeneration was assessed immediately or after 5 days, respectively. Depending on ganglioside expression and antibody-specificity, either a selective mNT injury or a combined injury of mNTs and neuromuscular glial cells was elicited. Immediately after induction of the injury, between 1.5% and 11.8% of neuromuscular junctions (NMJs) in the young adult groups exhibited healthy mNTs. Five days later, most NMJs, regardless of age and strain, had recovered their mNTs. No significant differences could be observed between young and aged WT and GM2sKO mice; aged GD3sKO showed a mildly impaired rate of mNT regeneration when compared with their younger counterparts. Comparable rates were observed between all strains in the young and the aged mice. In summary, the rate of mNT regeneration following anti-ganglioside antibody and complement-mediated injury does not differ majorly between young adult and aged mice irrespective of the expression of particular gangliosides.
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Affiliation(s)
- Angie Rupp
- Neuroimmunology Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, G12 8TA, United Kingdom
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Núñez D, Rauch J, Herwig K, Rupp A, Andermann M, Weisbrod M, Resch F, Oelkers-Ax R. Evidence for a magnocellular disadvantage in early-onset schizophrenic patients: a source analysis of the N80 visual-evoked component. Schizophr Res 2013; 144:16-23. [PMID: 23305611 DOI: 10.1016/j.schres.2012.12.007] [Citation(s) in RCA: 11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 11/09/2012] [Accepted: 12/04/2012] [Indexed: 12/01/2022]
Abstract
BACKGROUND Visual impairments in schizophrenia have been suggested to be partly caused by early processing deficits of the magnocellular (M) pathway. This might include disturbed interactions between the M and parvocellular (P) pathways and especially impaired M priming, which can disturb highlighting of relevant information. Such disorders may result from neurodevelopmental irregularities, which are assumed to be substantially involved in schizophrenia. This study sought to test the hypothesis that M priming is impaired in schizophrenia. In order to elucidate this neurodevelopmental aspect, we investigated patients with different ages of schizophrenia onset. This provided a useful design to integrate visual information processing in a neurodevelopmental model of schizophrenia. METHOD Nine stimulus conditions were used to investigate the M- and P-pathways and their interaction in a pattern reversal VEP paradigm. N80 generators were analyzed using source localization (Brain Electrical Source Analysis software: BESA). Forty schizophrenia patients (early-onset=19; adult-onset=21) were compared with age- and gender-matched healthy controls (early-onset controls=19; adult-onset controls=21). Hypotheses were tested using a bootstrap resampling procedure. RESULTS The N80 component was represented by a single dipole located in the occipital visual cortex. The bootstrap analysis yielded significant differences between early-onset schizophrenia patients and controls. We found lower amplitudes in response to mixed M-P conditions and normal amplitudes in response to isolated P- and M-biased stimulation. Concerning the latencies, significant differences were found between adult-onset subjects and their controls, with prolonged latencies for schizophrenia patients. CONCLUSIONS The early VEP component N80 evoked by mixed M-P conditions is assumed to be a correlate of M priming and showed reduced amplitude in early-onset schizophrenic patients but not in adult-onset patients. These findings point towards an M priming deficit in early-onset patients and are compatible with a neurodevelopmental hypothesis of schizophrenia, probably reflecting asynchronies in brain maturational abnormalities occurring at different ages of illness onset.
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Affiliation(s)
- D Núñez
- Faculty of Psychology, Universidad de Talca, Chile; Psychiatry Department, Centre for Psychosocial Medicine, University of Heidelberg, Voßstr. 4, 69115 Heidelberg, Germany.
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Rupp A, Vidal L, Blank J, Hetzel M. Einstellungen und Wissen von Ärzten zum Rauchen und zur Tabakentwöhnung. Pneumologie 2012. [DOI: 10.1055/s-0032-1302894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Fewou SN, Rupp A, Nickolay LE, Carrick K, Greenshields KN, Pediani J, Plomp JJ, Willison HJ. Anti-ganglioside antibody internalization attenuates motor nerve terminal injury in a mouse model of acute motor axonal neuropathy. J Clin Invest 2012; 122:1037-51. [PMID: 22307327 PMCID: PMC3287221 DOI: 10.1172/jci59110] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 12/21/2011] [Indexed: 01/17/2023] Open
Abstract
In the Guillain-Barré syndrome subform acute motor axonal neuropathy (AMAN), Campylobacter jejuni enteritis triggers the production of anti-ganglioside Abs (AGAbs), leading to immune-mediated injury of distal motor nerves. An important question has been whether injury to the presynaptic neuron at the neuromuscular junction is a major factor in AMAN. Although disease modeling in mice exposed to AGAbs indicates that complement-mediated necrosis occurs extensively in the presynaptic axons, evidence in humans is more limited, in comparison to the extensive injury seen at nodes of Ranvier. We considered that rapid AGAb uptake at the motor nerve terminal membrane might attenuate complement-mediated injury. We found that PC12 rat neuronal cells rapidly internalized AGAb, which were trafficked to recycling endosomes and lysosomes. Consequently, complement-mediated cytotoxicity was attenuated. Importantly, we observed the same AGAb endocytosis and protection from cytotoxicity in live mouse nerve terminals. AGAb uptake was attenuated following membrane cholesterol depletion in vitro and ex vivo, indicating that this process may be dependent upon cholesterol-enriched microdomains. In contrast, we observed minimal AGAb uptake at nodes of Ranvier, and this structure thus remained vulnerable to complement-mediated injury. These results indicate that differential endocytic processing of AGAbs by different neuronal and glial membranes might be an important modulator of site-specific injury in acute AGAb-mediated Guillain-Barré syndrome subforms and their chronic counterparts.
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Affiliation(s)
- Simon N. Fewou
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Angie Rupp
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Lauren E. Nickolay
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Kathryn Carrick
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Kay N. Greenshields
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - John Pediani
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Jaap J. Plomp
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Hugh J. Willison
- Institute of Infection, Immunity and Inflammation and
Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
Department of Neurology and
Department of Molecular Cell Biology — Group Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
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Rupp A, Blank J, Blattner S, Adzemovic E, Hetzel M. [Implementing in-patient smoking cessation interventions. Basic characteristics of smoking patients in a lung health department]. Pneumologie 2011; 66:14-9. [PMID: 22076781 DOI: 10.1055/s-0031-1291403] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
BACKGROUND Hospitals have a unique key role in promoting smoking cessation. However, cessation interventions are uncommon in clinical routine despite their proven effectiveness. For planning a tailored intervention for hospitalised patients we examined the characteristics of smokers in our department for lung diseases. METHODS AND PATIENTS From July to September 2009 we evaluated the smoking status of all admitted patients. The smoking status was validated by measuring the CO-Hb. Smokers admitted for the first time on one of our regular wards received a comprehensive questionnaire. Patients with a duration of stay of 2 days or less and patients with substantial cognitive or linguistic limitations were excluded. Clinical data was collected from the participating smokers. RESULTS 25% of all admitted patients were smokers. The participation rate was almost 90% of the eligible smokers. Our questionnaire was very well accepted und provided multitude helpful information for a following cessation counselling. Up to 3 or 4 smokers per day should be anticipated for a cessation intervention at an 80-bed-hospital. At least one counselling contact could be enabled. Although 75% of participants had experienced at least one unsuccessful quit attempt, only a minority used any support or help for cessation so far. CONCLUSIONS Specific questionnaires to evaluate the smoking history of patients in hospitals are very suitable and facilitate a subsequent bedside-counseling. To come up with their key role in promoting smoking cessation more hospitals as yet should implement cessation interventions.
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Affiliation(s)
- A Rupp
- Zentrum für Tabakentwöhnung Stuttgart.
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Rupp A, Blattner S, Adzemovic E, Blank J, Hetzel M. Charakteristika der Raucher an pneumologischen Kliniken. Pneumologie 2011. [DOI: 10.1055/s-0031-1272281] [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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Lodes S, Rupp A, Hetzel M, Zahnert T, Neudert M. Stellenwert der Tabakentwöhnung in Baden-Württemberg und Sachsen in der Pneumologie und der HNO-Heilkunde. Pneumologie 2011. [DOI: 10.1055/s-0031-1272284] [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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Rupp A, Adzemovic E, Blattner S, Blank J, Hetzel M. Stationäre Raucherberatung - mehr als nur Türöffner zur Tabakentwöhnung. Pneumologie 2011. [DOI: 10.1055/s-0031-1272280] [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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Hetzel M, Prettner R, Philipp A, Willems P, Merk T, Rupp A. Implantation von PneumoRx Drahtspiralen für die Therapie des heterogenen Lungenemphysems. Pneumologie 2011. [DOI: 10.1055/s-0031-1272301] [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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Rupp A, Kreuter M, Neudert M, Raupach T, Bühringer G, Hetzel M. Ist kürzer besser? Kurzinterventionen zur Tabakentwöhnung. Pneumologie 2011. [DOI: 10.1055/s-0031-1272279] [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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Rupp A, Neudert M, Hetzel M. Wichtigkeit und Notwendigkeit zur Einführung von Maßnahmen zur Tabakentwöhnung an pneumologischen Akut-Kliniken. Pneumologie 2010. [DOI: 10.1055/s-0030-1251293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rupp A, Blattner S, Adzemovic E, Merk T, Hetzel M. Umsetzung einer strukturierten Erhebung der Rauch-Anamnese bei pneumologischen Patienten. Pneumologie 2010. [DOI: 10.1055/s-0030-1251291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rupp A, Neudert M, Hetzel M. Hindernisse auf dem Weg zur Tabakentwöhnung. Pneumologie 2010. [DOI: 10.1055/s-0030-1251292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hetzel M, Hetzel J, Prettner R, Merk T, Rupp A, Willems P, Philipp A, Hnidek K, Bartscher E, Babiak A. Diagnostische Bronchoskopien bei Spontanatmung unter tiefer Sedierung mit Propofol. Pneumologie 2010. [DOI: 10.1055/s-0030-1251106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
BACKGROUND AND OBJECTIVES Tobacco smoking is the main preventable risk factor resulting in multiple diseases and premature death. In particular, the airways and the lungs are affected by the effects of smoking. Hospitals have considerable potential to advance smoking cessation. However, so far there have only been a few data on availability and effectiveness of smoking cessation programs in hospitals. This study aimed to assess such programs in general hospitals with a special department for lung disease in South West Germany. METHODS 40 hospitals with at least one pulmonary specialist were identified. This doctor was subsequently interviewed by a telephone call. 39 hospitals participated, one could not be reached by telephone. RESULTS Although most of the interviewed specialists confirmed the importance of smoking cessation in the field of pneumology only 3 hospitals had own activities for promoting smoking cessation. Another 7 hospitals cooperated with other institutions. Accompanying pharmacotherapy was not practised regularly. The main reasons for a lack of smoking cessation activities in the hospitals were due to the lack of personnel, time and money. CONCLUSION Our study highlights the tremendous difficulties facing general hospitals when trying to implement a smoking cessation program. Changes in the economic frameworks, and further examination of appropriate measures for brief interventions in the hospital setting are necessary.
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Affiliation(s)
- A Rupp
- Klinik für Pneumologie, Beatmungsmedizin und Allgemeine Innere Medizin, Krankenhaus vom Roten Kreuz, Stuttgart.
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Rupp A, Dornseifer U, Rodenacker K, Fichter A, Jütting U, Gais P, Papadopulos N, Matiasek K. Temporal progression and extent of the return of sensation in the foot provided by the saphenous nerve after sciatic nerve transection and repair in the rat—implications for nociceptive assessments. Somatosens Mot Res 2009; 24:1-13. [PMID: 17558918 DOI: 10.1080/08990220601116329] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [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: 10/23/2022]
Abstract
Sensory testing, by providing stimuli for nociceptors of the foot, is a popular method of evaluating sensory regeneration after damage to the sciatic nerve in the rat. In the following study, 20 rats were submitted to double transection of the sciatic nerve. The subsequent 14 mm gap was repaired through guidance interponation. In order to evaluate nerve regeneration, sensory testing was performed additionally to other methods, which included motor testing, morphometry, and electron microscopic assessments of nerves. Somatosensory testing revealed that all animals exhibited next to the same amount of sensory reinnervation on their foot regardless of their experimental group. In motor tests, however, two out of the three experimental groups did not improve at all. These groups also failed to show neural regrowth in morphometric and electron microscopic assessments of the associated nerve. Retrograde tracing was able to prove the saphenous nerve as an alternative source of sensory reinnervation in animals with failed sciatic regeneration. This means that results of sensory testing in the rat should be treated with caution, taking into account the areas tested and the likelihood that in these areas saphenous sprouting could have taken place. Furthermore, it is strongly advised that somatosensory testing should be conducted only on toe 5.
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Affiliation(s)
- Angie Rupp
- Chair of General Pathology & Neuropathology, Institute of Veterinary Pathology, Ludwig-Maximilians University, Munich, Germany
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Buschmann A, Jooss B, Rupp A, Feldhusen F, Pietz J, Philippi H. Parent based language intervention for 2-year-old children with specific expressive language delay: a randomised controlled trial. Arch Dis Child 2009; 94:110-6. [PMID: 18703544 PMCID: PMC2614563 DOI: 10.1136/adc.2008.141572] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE The aim of this randomised controlled trial was to evaluate the effectiveness of a short, highly structured parent based language intervention group programme for 2-year-old children with specific expressive language delay (SELD, without deficits in receptive language). METHODS 61 children with SELD (mean age 24.7 months, SD 0.9) were selected between October 2003 and February 2006 during routine developmental check-ups in general paediatric practices, using a German parent-report screening questionnaire (adapted from the MacArthur Communicative Development Inventories). Standardised instruments were used to assess the language and non-verbal cognitive abilities of these children and of 36 other children with normal language development (reference group; mean age 24.6 months, SD 0.8). 58 children with SELD were sequentially randomly assigned to an intervention group (n = 29) or a 12-month waiting group (n = 29). In the intervention group, mothers participated in the 3-month Heidelberg Parent-based Language Intervention (HPLI). All children were reassessed 6 and 12 months after pretest. Assessors were blind to allocation and previous results. RESULTS 47 children were included in the analysis. At the age of 3 years, 75% of the children in the intervention group showed normal expressive language abilities in contrast to 44% in the waiting group. Only 8% of the children in the intervention group versus 26% in the waiting group met the criteria for specific language impairment (t score < or =35). CONCLUSIONS By applying the short, highly structured HPLI in children with SELD, the rate of treatment for language impairment at the age of 3 years can be significantly reduced.
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Affiliation(s)
- A Buschmann
- Department of Paediatric Neurology, Children's Hospital, University of Heidelberg, Im Neuenheimer Feld 150, D-69120 Heidelberg, Germany.
| | - B Jooss
- Department of Paediatric Neurology, Children’s Hospital, University of Heidelberg, Heidelberg, Germany
| | - A Rupp
- Section of Biomagnetism, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - F Feldhusen
- Department of Paedaudiology, University of Heidelberg, Heidelberg, Germany
| | - J Pietz
- Department of Paediatric Neurology, Children’s Hospital, University of Heidelberg, Heidelberg, Germany
| | - H Philippi
- Department of Paediatric Neurology, Children’s Hospital, University of Heidelberg, Heidelberg, Germany
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Hornyak M, Rupp A, Riemann D, Feige B, Berger M, Voderholzer U. Low-dose hydrocortisone in the evening modulates symptom severity in restless legs syndrome. Neurology 2008; 70:1620-2. [DOI: 10.1212/01.wnl.0000310984.45538.89] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Rupp A, Dornseifer U, Fischer A, Schmahl W, Rodenacker K, Jütting U, Gais P, Biemer E, Papadopulos N, Matiasek K. Electrophysiologic assessment of sciatic nerve regeneration in the rat: Surrounding limb muscles feature strongly in recordings from the gastrocnemius muscle. J Neurosci Methods 2007; 166:266-77. [PMID: 17854904 DOI: 10.1016/j.jneumeth.2007.07.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 07/04/2007] [Accepted: 07/11/2007] [Indexed: 12/29/2022]
Abstract
Striking inconsistencies between the results of morphometric and electrophysiologic examinations of the regenerating nerve were observed in a previous study featuring the bridging of a 14 mm gap in the rat sciatic nerve. To shed light on this dichotomy, seven further rats were subjected to permanent sciatic nerve transection and assessed electrophysiologically, histologically and by retrograde axonal tracing at various postoperative intervals (1 h to 8 weeks). The results of the histological examinations and retrograde tracing revealed that in spite of the fact that compound muscle action potentials could be recorded in the gastrocnemius muscle, no reinnervation of the gastrocnemius muscle, either physiological or aberrant, had actually taken place. Furthermore, it was established that the electrical activity recorded in the gastrocnemius muscle after stimulation of the proximal or distal stump is generated by surrounding hind limb muscles unaffected by denervation. These are stimulated either directly, or indirectly due to spreading of the impulse. It is therefore strongly recommended that caution should be exercised when interpreting recordings from the gastrocnemius muscle after stimulation of a regenerating sciatic nerve in laboratory rodents.
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Affiliation(s)
- Angie Rupp
- Institute of Veterinary Pathology, Chair of General Pathology & Neuropathology, Ludwig-Maximilians University, Veterinärstr. 13, 80539 Munich, Germany
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Dornseifer U, Matiasek K, Fichter MA, Rupp A, Henke J, Weidner N, Kovacs L, Schmahl W, Biemer E, Ninkovic M, Papadopulos NA. Surgical Therapy of Peripheral Nerve Lesions: Current Status and New Perspectives. ACTA ACUST UNITED AC 2007; 68:101-10. [PMID: 17665337 DOI: 10.1055/s-2007-984453] [Citation(s) in RCA: 11] [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: 10/22/2022]
Abstract
The severe functional deficits in patients suffering from traumatic peripheral nerve damage underline the necessity of an optimal therapy. The development of microsurgical techniques in the sixties contributed significantly to the progress in nerve repair. Since then, no major clinical innovation has become established. However, with an increased understanding of cellular and molecular mechanisms underlying nerve regeneration, various tubulization concepts have been developed which yield possible alternatives to direct suturing and to autologous nerve grafting in cases of short nerve defects. The vast knowledge gathered in the field of nerve regeneration needs to be further exploited in order to develop alternative therapeutic strategies to nerve autografting, which can result in donor-site defects and often lead to inappropriate results. Considering the encouraging results from preclinical studies, innovative nerve repair strategies are likely to improve the outcome of reconstructive surgical interventions. This paper outlines, in addition to the fundamentals of nerve regeneration, the current treatment options for defects of peripheral nerves. This article also reviews the developments in the use of alternative nerve guides and demonstrates new perspectives in the field of peripheral nerve reconstruction.
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Affiliation(s)
- U Dornseifer
- Department of Plastic, Reconstructive, and Hand Surgery, Burn Center, Klinikum Bogenhausen - Städtisches Klinikum München GmbH, Munich, Germany
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Bast T, Wright T, Boor R, Harting I, Feneberg R, Rupp A, Hoechstetter K, Rating D, Baumgärtner U. Combined EEG and MEG analysis of early somatosensory evoked activity in children and adolescents with focal epilepsies. Clin Neurophysiol 2007; 118:1721-35. [PMID: 17572142 DOI: 10.1016/j.clinph.2007.03.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2006] [Revised: 03/13/2007] [Accepted: 03/15/2007] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The study aimed to evaluate differences between EEG and MEG analysis of early somatosensory evoked activity in patients with focal epilepsies in localizing eloquent areas of the somatosensory cortex. METHODS Twenty-five patients (12 male, 13 female; age 4-25 years, mean 11.7 years) were included. Syndromes were classified as symptomatic in 17, idiopathic in 2 and cryptogenic in 6 cases. 10 patients presented with malformations of cortical development (MCD). 122 channel MEG and simultaneous 33-channel EEG were recorded during tactile stimulation of the thumb (sampling rate 769 Hz, band-pass 0.3-260 Hz). Forty-four hemispheres were analyzed. Hemispheres were classified as type I: normal (15), II: central structural lesion (16), III: no lesion, but central epileptic discharges (ED, 8), IV: lesion or ED outside the central region (5). Analysis of both sides including one normal and one type II or III hemisphere was possible in 15 patients. Recordings were repeated in 18 hemispheres overall. Averaged data segments were filtered (10-250 Hz) and analyzed off-line with BESA. Latencies and amplitudes of N20 and P30 were analyzed. A regional source was fitted for localizing S1 by MRI co-registration. Orientation of EEG N20 was calculated from a single dipole model. RESULTS EEG and MEG lead to comparable good results in all normal hemispheres. Only EEG detected N20/P30 in 3 hemispheres of types II/III while MEG showed no signal. N20 dipoles had a more radial orientation in these cases. MEG added information in one hemisphere, when EEG source analysis of a clear N20 was not possible because of a low signal-to-noise ratio. Overall N20 dipoles had a more radial orientation in type II when compared to type I hemispheres (p=0.01). Further N20/P30 parameters (amplitudes, latencies, localization related to central sulcus) showed no significant differences between affected and normal hemispheres. Early somatosensory evoked activity was preserved within the visible lesion in 5 of the 10 patients with MCD. CONCLUSIONS MEG should be combined with EEG when analyzing tactile evoked activities in hemispheres with a central structural lesion or ED focus. SIGNIFICANCE At time, MEG analysis is frequently applied without simultaneous EEG. Our results clearly show that EEG may be superior under specific circumstances and combination is necessary when analyzing activity from anatomically altered cortex.
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Affiliation(s)
- T Bast
- Department of Pediatric Neurology, University Children's Hospital, INF 150, 69120 Heidelberg, Germany.
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Abstract
The sciatic nerve in the rat is the site most often used for peripheral nerve regeneration studies. The length of sciatic nerve available for research, however, depends on the point at which the sciatic nerve divides into the peroneal and tibial nerves. In the present study, the hind limbs of 150 adult male rats of five different strains (Sprague-Dawley, Fischer 344, Wistar-Han, Lewis and Nude) were analysed with regard to femur length, the point at which the sciatic nerve divides into the tibial and peroneal nerves, and where these are surrounded by the same epineurium, and the point at which they are encased in individual epineurial sheaths. The results indicate that the lengths of sciatic nerve are fairly constant in all strains of rats. In absolute terms, they amount to about one-third of the length of the femur for stretches of undivided sciatic nerve, and up to nearly half of the femur length for stretches where the tibial and peroneal nerves are already present, but are still enclosed by the same epineurium. In 61.7% of the hind limbs examined in Fischer rats, however, no sciatic nerve could be seen as such, but only in the form of its successors surrounded by the separate epineuria. This makes it highly advisable not to use male adult Fischer rats in peripheral nerve regeneration studies with the sciatic nerve as the point of focus.
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Affiliation(s)
- A Rupp
- Institute of Veterinary Pathology, Ludwig Maximilians University, Veterinärstr. 13, 80539 Munich, Germany
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Schneider P, Andermann M, Engelmann D, Schneider R, Rupp A. [Music in the head. Individual differences in sound perception and the cerebral symphony orchestra]. Dtsch Med Wochenschr 2006; 131:2895-7. [PMID: 17163365 DOI: 10.1055/s-2006-957218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P Schneider
- Neurologische Klinik, INF 400, Sektion Biomagnetismus, Heidelberg.
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Jüttler E, Kult A, Storch-Hagenlocher B, Hess K, Rupp A, Wildemann B. Psychophysiologische Untersuchung der selektiven visuellen Aufmerksamkeit bei ersterkrankten Patienten mit demyelinsierender ZNS-Erkrankung. Akt Neurol 2005. [DOI: 10.1055/s-2005-919596] [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: 10/26/2022]
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