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Harris S, Dupanloup A, Liao PT, Jukier T. Case report: Recovery and sequential imaging of a patient with osmotic demyelination syndrome. Front Vet Sci 2023; 10:1146091. [PMID: 37187927 PMCID: PMC10175592 DOI: 10.3389/fvets.2023.1146091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
A 4-year-old neutered-male Australian Shepherd was presented to an emergency and referral hospital for an acute onset of neurologic signs and abnormal mentation. Seven days prior, the patient had been diagnosed with hypoadrenocorticism and was treated accordingly at another hospital. Based on recent clinical history, the neurologic signs were consistent with thalamic and brainstem deficits and suspected to be caused by osmotic demyelination syndrome secondary to rapid correction of hyponatremia. A brain MRI confirmed lesions consistent with osmotic demyelination syndrome. The patient's clinical signs initially worsened, and he required intensive nursing care with multimodal sedation, close monitoring of electrolytes and tailored fluid therapy. The patient recovered and was discharged on day seven of hospitalization. Four and a half months later, re-evaluation of the patient showed complete resolution of the neurological deficits with a now unremarkable neurological exam, and follow-up MRI revealed still present, yet improved bilateral thalamic lesions. This is the first known veterinary case report of sequential brain imaging of a dog that has recovered from osmotic demyelination syndrome. In humans, patients can have evidence of near to full clinical recovery, yet imaging findings may still be abnormal several months after recovery. This report details similar imaging findings in a canine with improved clinical signs, despite persistent lesions on brain MRI. Prognosis of canines with osmotic demyelination syndrome may be better than previously perceived, despite the severity of clinical signs and brain lesions apparent on MRI.
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Affiliation(s)
- Stephanie Harris
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Adrien Dupanloup
- Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Pen-Ting Liao
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Tom Jukier
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL, United States
- *Correspondence: Tom Jukier
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2
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Tamura S, Tamura Y, Nakamoto Y, Hasegawa D, Tsuboi M, Uchida K, Yabuki A, Yamato O. Positioning Head Tilt in Canine Lysosomal Storage Disease: A Retrospective Observational Descriptive Study. Front Vet Sci 2022; 8:802668. [PMID: 34970622 PMCID: PMC8712568 DOI: 10.3389/fvets.2021.802668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
Positioning head tilt is a neurological sign that has recently been described in dogs with congenital cerebellar malformations. This head tilt is triggered in response to head movement and is believed to be caused by a lack of inhibition of the vestibular nuclei by the cerebellar nodulus and ventral uvula (NU), as originally reported cases were dogs with NU hypoplasia. We hypothesized that other diseases, such as lysosomal storage diseases that cause degeneration in the whole brain, including NU, may cause NU dysfunction and positioning head tilt. Videos of the clinical signs of canine lysosomal storage disease were retrospectively evaluated. In addition, post-mortem NU specimens from each dog were histopathologically evaluated. Nine dogs were included, five with lysosomal storage disease, two Chihuahuas with neuronal ceroid lipofuscinosis (NCL), two Border Collies with NCL, one Shikoku Inu with NCL, two Toy Poodles with GM2 gangliosidosis, and two Shiba Inus with GM1 gangliosidosis. Twenty-eight videos recorded the clinical signs of the dogs. In these videos, positioning head tilt was observed in seven of nine dogs, two Chihuahuas with NCL, one Border Collie with NCL, one Shikoku Inu with NCL, one Toy Poodle with GM2 gangliosidosis, and two Shiba Inus with GM1 gangliosidosis. Neuronal degeneration and loss of NU were histopathologically confirmed in all diseases. As positioning head tilt had not been described until 2016, it may have been overlooked and may be a common clinical sign and pathophysiology in dogs with NU dysfunction.
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Affiliation(s)
| | | | - Yuya Nakamoto
- Neuro Vets Animal Neurology Clinic, Kyoto, Japan.,Veterinary Surgery, Graduate School of Life and Environmental Science, Osaka Prefecture University, Sakai, Japan
| | - Daisuke Hasegawa
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaya Tsuboi
- Laboratory of Veterinary Pathology, Graduate School of Agriculture and Life Science, University of Tokyo, Tokyo, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agriculture and Life Science, University of Tokyo, Tokyo, Japan
| | - Akira Yabuki
- Laboratory of Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Osamu Yamato
- Laboratory of Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
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3
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Quitt PR, Brühschwein A, Matiasek K, Wielaender F, Karkamo V, Hytönen MK, Meyer-Lindenberg A, Dengler B, Leeb T, Lohi H, Fischer A. A hypomyelinating leukodystrophy in German Shepherd dogs. J Vet Intern Med 2021; 35:1455-1465. [PMID: 33734486 PMCID: PMC8163122 DOI: 10.1111/jvim.16085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/07/2021] [Accepted: 02/17/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Shaking puppy syndrome is commonly attributed to abnormal myelination of the central nervous system. HYPOTHESIS/OBJECTIVES To report the long-term clinical course and the imaging characteristics of hypomyelinating leukodystrophy in German Shepherd dogs. ANIMALS AND METHODS Three related litters with 11 affected dogs. RESULTS The 11 affected dogs experienced coarse, side-to-side tremors of the head and trunk, which interfered with normal goal-oriented movements and disappeared at rest. Signs were noticed shortly after birth. Nine dogs were euthanized, 3 dogs underwent pathological examination, and 2 littermates were raised by their breeder. Tremors improved gradually until 6 to 7 months of age. Adult dogs walked with severe residual pelvic limb ataxia. One dog developed epilepsy with tonic-clonic seizures at 15 months of age. Conventional magnetic resonance imaging (MRI) disclosed homogenous hyperintense signal of the entire subcortical white matter in 3 affected 7-week-old dogs and a hypointense signal in a presumably unaffected littermate. Subcortical white matter appeared isointense to gray matter at 15 and 27 weeks of age on repeated MRI. Abnormal white matter signal with failure to display normal gray-white matter contrast persisted into adulthood. Cerebellar arbor vitae was not visible at any time point. Clinical signs, MRI findings, and pathological examinations were indicative of a hypomyelinating leukodystrophy. All parents of the affected litters shared a common ancestor and relatedness of the puppies suggested an autosomal recessive mode of inheritance. CONCLUSION We describe a novel hypomyelinating leukodystrophy in German Shepherd dogs with a suspected inherited origin.
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Affiliation(s)
- Pia R Quitt
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Andreas Brühschwein
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Kaspar Matiasek
- Section of Clinical and Comparative Pathology, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Franziska Wielaender
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Veera Karkamo
- Production and Companion Animal Pathology Section, Finnish Food Authority, Helsinki, Finland
| | - Marjo K Hytönen
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland.,Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Andrea Meyer-Lindenberg
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Berett Dengler
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Hannes Lohi
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland.,Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Andrea Fischer
- Centre for Clinical Veterinary Medicine, Faculty of Veterinary Medicine, LMU Munich, Munich, Germany
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Gray-Edwards HL, Maguire AS, Salibi N, Ellis LE, Voss TL, Diffie EB, Koehler J, Randle AN, Taylor AR, Brunson BL, Denney TS, Beyers RJ, Gentry AS, Gross AL, Batista AR, Sena-Esteves M, Martin DR. 7T MRI Predicts Amelioration of Neurodegeneration in the Brain after AAV Gene Therapy. Mol Ther Methods Clin Dev 2020; 17:258-270. [PMID: 31970203 PMCID: PMC6962699 DOI: 10.1016/j.omtm.2019.11.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/13/2019] [Indexed: 11/23/2022]
Abstract
GM1 gangliosidosis (GM1) is a fatal neurodegenerative lysosomal storage disease that occurs most commonly in young children, with no effective treatment available. Long-term follow-up of GM1 cats treated by bilateral thalamic and deep cerebellar nuclei (DCN) injection of adeno-associated virus (AAV)-mediated gene therapy has increased lifespan to 8 years of age, compared with an untreated lifespan of ~8 months. Due to risks associated with cerebellar injection in humans, the lateral ventricle was tested as a replacement route to deliver an AAVrh8 vector expressing feline β-galactosidase (β-gal), the defective enzyme in GM1. Treatment via the thalamus and lateral ventricle corrected storage, myelination, astrogliosis, and neuronal morphology in areas where β-gal was effectively delivered. Oligodendrocyte number increased, but only in areas where myelination was corrected. Reduced AAV and β-gal distribution were noted in the cerebellum with subsequent increases in storage, demyelination, astrogliosis, and neuronal degeneration. These postmortem findings were correlated with endpoint MRI and magnetic resonance spectroscopy (MRS). Compared with the moderate dose with which most cats were treated, a higher AAV dose produced superior survival, currently 6.5 years. Thus, MRI and MRS can predict therapeutic efficacy of AAV gene therapy and non-invasively monitor cellular events within the GM1 brain.
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Affiliation(s)
- Heather L. Gray-Edwards
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Anne S. Maguire
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Nouha Salibi
- MR R&D Department, Siemens Healthcare, Malvern, PA, USA
| | - Lauren E. Ellis
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Taylor L. Voss
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Elise B. Diffie
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Jey Koehler
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Ashley N. Randle
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Amanda R. Taylor
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Brandon L. Brunson
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Thomas S. Denney
- MRI Research Center, Auburn University, Auburn, AL, USA
- Department of Electrical Engineering, Auburn University, Auburn, AL, USA
| | | | - Atoska S. Gentry
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Amanda L. Gross
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Ana R. Batista
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Miguel Sena-Esteves
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Douglas R. Martin
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
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5
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Cognitive Abilities of Dogs with Mucopolysaccharidosis I: Learning and Memory. Animals (Basel) 2020; 10:ani10030397. [PMID: 32121123 PMCID: PMC7143070 DOI: 10.3390/ani10030397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 02/24/2020] [Indexed: 02/08/2023] Open
Abstract
Mucopolysaccharidosis I (MPS I) results from a deficiency of a lysosomal enzyme, alpha-L-iduronidase (IDUA). IDUA deficiency leads to glycosaminoglycan (GAG) accumulation resulting in cellular degeneration and multi-organ dysfunction. The primary aims of this pilot study were to determine the feasibility of cognitive testing MPS I affected dogs and to determine their non-social cognitive abilities with and without gene therapy. Fourteen dogs were tested: 5 MPS I untreated, 5 MPS I treated, and 4 clinically normal. The treated group received intrathecal gene therapy as neonates to replace the IDUA gene. Cognitive tests included delayed non-match to position (DNMP), two-object visual discrimination (VD), reversal learning (RL), attention oddity (AO), and two-scent discrimination (SD). Responses were recorded as correct, incorrect, or no response, and analyzed using mixed effect logistic regression analysis. Significant differences were not observed among the three groups for DNMP, VD, RL, or AO. The MPS I untreated dogs were excluded from AO testing due to failing to pass acquisition of the task, potentially representing a learning or executive function deficit. The MPS I affected group (treated and untreated) was significantly more likely to discriminate between scents than the normal group, which may be due to an age effect. The normal group was comprised of the oldest dogs, and a mixed effect logistic model indicated that older dogs were more likely to respond incorrectly on scent discrimination. Overall, this study found that cognition testing of MPS I affected dogs to be feasible. This work provides a framework to refine future cognition studies of dogs affected with diseases, including MPS I, in order to assess therapies in a more comprehensive manner.
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Robinson JL, Baxi M, Katz JS, Waggoner P, Beyers R, Morrison E, Salibi N, Denney TS, Vodyanoy V, Deshpande G. Characterization of Structural Connectivity of the Default Mode Network in Dogs using Diffusion Tensor Imaging. Sci Rep 2016; 6:36851. [PMID: 27886204 PMCID: PMC5122865 DOI: 10.1038/srep36851] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 10/21/2016] [Indexed: 01/01/2023] Open
Abstract
Diffusion tensor imaging (DTI) provides us an insight into the micro-architecture of white-matter tracts in the brain. This method has proved promising in understanding and investigating the neuronal tracts and structural connectivity between the brain regions in primates as well as rodents. The close evolutionary relationship between canines and humans may have spawned a unique bond in regard to social cognition rendering them useful as an animal model in translational research. In this study, we acquired diffusion data from anaesthetized dogs and created a DTI-based atlas for a canine model which could be used to investigate various white matter diseases. We illustrate the application of this atlas by calculating DTI tractography based structural connectivity between the anterior cingulate cortex (ACC) and posterior cingulate cortex (PCC) regions of the default mode network (DMN) in dogs. White matter connectivity was investigated to provide structural basis for the functional dissociation observed between the anterior and posterior parts of DMN. A comparison of the integrity of long range structural connections (such as in the DMN) between dogs and humans is likely to provide us with new perspectives on the neural basis of the evolution of cognitive functions.
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Affiliation(s)
- Jennifer L Robinson
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,Dept. of Psychology, Auburn University, Auburn, AL, USA.,Alabama Advanced Imaging Consortium, Auburn University and University of Alabama Birmingham, AL, USA
| | - Madhura Baxi
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeffrey S Katz
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,Dept. of Psychology, Auburn University, Auburn, AL, USA.,Alabama Advanced Imaging Consortium, Auburn University and University of Alabama Birmingham, AL, USA
| | - Paul Waggoner
- Canine Detection Research Institute, Auburn University, Auburn, AL, USA
| | - Ronald Beyers
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA
| | - Edward Morrison
- Dept. of Anatomy, Physiology &Pharmacology, Auburn University, Auburn, AL, USA
| | - Nouha Salibi
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,MR R&D, Siemens Healthcare, Malvern, PA, USA
| | - Thomas S Denney
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,Dept. of Psychology, Auburn University, Auburn, AL, USA.,Alabama Advanced Imaging Consortium, Auburn University and University of Alabama Birmingham, AL, USA
| | - Vitaly Vodyanoy
- Dept. of Anatomy, Physiology &Pharmacology, Auburn University, Auburn, AL, USA
| | - Gopikrishna Deshpande
- AU MRI Research Center, Dept. of Electrical &Computer Engineering, Auburn University, Auburn, AL, USA.,Dept. of Psychology, Auburn University, Auburn, AL, USA.,Alabama Advanced Imaging Consortium, Auburn University and University of Alabama Birmingham, AL, USA
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7
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UENO H, YAMATO O, SUGIURA T, KOHYAMA M, YABUKI A, MIYOSHI K, MATSUDA K, UCHIDE T. GM1 gangliosidosis in a Japanese domestic cat: a new variant identified in Hokkaido, Japan. J Vet Med Sci 2016; 78:91-5. [PMID: 26234889 PMCID: PMC4751122 DOI: 10.1292/jvms.15-0281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 07/22/2015] [Indexed: 11/29/2022] Open
Abstract
A male Japanese domestic cat with retarded growth in Hokkaido, Japan, showed progressive motor dysfunction, such as ataxia starting at 3 months of age and tremors, visual disorder and seizure after 4 months of age. Finally, the cat died of neurological deterioration at 9 months of age. Approximately half of the peripheral blood lymphocytes had multiple abnormal vacuoles. Magnetic resonance imaging showed bisymmetrical hyperintensity in the white matter of the parietal and occipital lobes in the forebrain on T2-weighted and fluid-attenuated inversion recovery images, and mild encephalatrophy of the olfactory bulbs and temporal lobes. The activity of lysosomal acid β-galactosidase in leukocytes was negligible, resulting in the biochemical diagnosis of GM1 gangliosidosis. Histologically, swollen neurons characterized by accumulation of pale, slightly granular cytoplasmic materials were observed throughout the central nervous system. Dysmyelination or demyelination and gemistocytic astrocytosis were observed in the white matter. Ultrastructually, membranous cytoplasmic bodies were detected in the lysosomes of neurons. However, genetic analysis did not identify the c.1448G>C mutation, which is the single known mutation of feline GM1 gangliosidosis, suggesting that the cat was affected with a new variant of the feline disease.
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Affiliation(s)
- Hiroshi UENO
- Department of Veterinary Orthopedic and Neurosurgery, School
of Veterinary Medicine, Rakuno Gakuen University, 582 Midori-machi, Bunkyo-dai, Ebetsu,
Hokkaido 069–8501, Japan
| | - Osamu YAMATO
- Laboratory of Clinical Pathology, Joint Faculty of
Veterinary Medicine, Kagoshima University, 1–21–24 Korimoto, Kagoshima 890–0065,
Japan
| | - Takeshi SUGIURA
- Sugiura Pet Clinic, 1–2 Shinei, Kiyota-ku, Sapporo, Hokkaido
004–0831, Japan
| | - Moeko KOHYAMA
- Laboratory of Clinical Pathology, Joint Faculty of
Veterinary Medicine, Kagoshima University, 1–21–24 Korimoto, Kagoshima 890–0065,
Japan
| | - Akira YABUKI
- Laboratory of Clinical Pathology, Joint Faculty of
Veterinary Medicine, Kagoshima University, 1–21–24 Korimoto, Kagoshima 890–0065,
Japan
| | - Kenjiro MIYOSHI
- Department of Veterinary Anesthesiology, School of
Veterinary Medicine, Rakuno Gakuen University, 582 Midori-machi, Bunkyo-dai, Ebetsu,
Hokkaido 069–8501, Japan
| | - Kazuya MATSUDA
- Department of Veterinary Pathology, School of Veterinary
Medicine, Rakuno Gakuen University, 582 Midori-machi, Bunkyo-dai, Ebetsu, Hokkaido
069–8501, Japan
| | - Tsuyoshi UCHIDE
- Department of Veterinary Internal Medicine, School of
Veterinary Medicine, Rakuno Gakuen University, 582 Midori-machi, Bunkyo-dai, Ebetsu,
Hokkaido 069–8501, Japan
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Hasegawa D, Tamura S, Nakamoto Y, Matsuki N, Takahashi K, Fujita M, Uchida K, Yamato O. Magnetic resonance findings of the corpus callosum in canine and feline lysosomal storage diseases. PLoS One 2013; 8:e83455. [PMID: 24386203 PMCID: PMC3873931 DOI: 10.1371/journal.pone.0083455] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 11/04/2013] [Indexed: 11/17/2022] Open
Abstract
Several reports have described magnetic resonance (MR) findings in canine and feline lysosomal storage diseases such as gangliosidoses and neuronal ceroid lipofuscinosis. Although most of those studies described the signal intensities of white matter in the cerebrum, findings of the corpus callosum were not described in detail. A retrospective study was conducted on MR findings of the corpus callosum as well as the rostral commissure and the fornix in 18 cases of canine and feline lysosomal storage diseases. This included 6 Shiba Inu dogs and 2 domestic shorthair cats with GM1 gangliosidosis; 2 domestic shorthair cats, 2 familial toy poodles, and a golden retriever with GM2 gangliosidosis; and 2 border collies and 3 chihuahuas with neuronal ceroid lipofuscinoses, to determine whether changes of the corpus callosum is an imaging indicator of those diseases. The corpus callosum and the rostral commissure were difficult to recognize in all cases of juvenile-onset gangliosidoses (GM1 gangliosidosis in Shiba Inu dogs and domestic shorthair cats and GM2 gangliosidosis in domestic shorthair cats) and GM2 gangliosidosis in toy poodles with late juvenile-onset. In contrast, the corpus callosum and the rostral commissure were confirmed in cases of GM2 gangliosidosis in a golden retriever and canine neuronal ceroid lipofuscinoses with late juvenile- to early adult-onset, but were extremely thin. Abnormal findings of the corpus callosum on midline sagittal images may be a useful imaging indicator for suspecting lysosomal storage diseases, especially hypoplasia (underdevelopment) of the corpus callosum in juvenile-onset gangliosidoses.
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Affiliation(s)
- Daisuke Hasegawa
- Division of Veterinary Radiology, Department of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | | | | | - Naoaki Matsuki
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo, Japan
| | - Kimimasa Takahashi
- Division of Veterinary Pathology, Department of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Michio Fujita
- Division of Veterinary Radiology, Department of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo, Japan
| | - Osamu Yamato
- Laboratory of Clinical Pathology, Department of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
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9
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Uddin MM, Arata S, Takeuchi Y, Chang HS, Mizukami K, Yabuki A, Rahman MM, Kohyama M, Hossain MA, Takayama K, Yamato O. Molecular epidemiology of canine GM1 gangliosidosis in the Shiba Inu breed in Japan: relationship between regional prevalence and carrier frequency. BMC Vet Res 2013; 9:132. [PMID: 23819787 PMCID: PMC3701567 DOI: 10.1186/1746-6148-9-132] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 07/02/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Canine GM1 gangliosidosis is a fatal disease in the Shiba Inu breed, which is one of the most popular traditional breeds in Japan and is maintained as a standard breed in many countries. Therefore, it is important to control and reduce the prevalence of GM1 gangliosidosis for maintaining the quality of this breed and to ensure supply of healthy dogs to prospective breeders and owners. This molecular epidemiological survey was performed to formulate an effective strategy for the control and prevention of this disease. RESULTS The survey was carried out among 590 clinically unaffected Shiba Inu dogs from the 8 districts of Japan, and a genotyping test was used to determine nation-wide and regional carrier frequencies. The number and native district of affected dogs identified in 16 years from 1997 to June 2013 were also surveyed retrospectively. Of the 590 dogs examined, 6 dogs (1.02%, 6/590) were carriers: 3 dogs (2.27%, 3/132) from the Kinki district and the other 3 dogs from the Hokkaido, Kanto, and Shikoku districts. The retrospective survey revealed 23 affected dogs, among which, 19 dogs (82.6%) were born within the last 7 years. Of the 23 affected dogs, 12 dogs (52.2%) were from the Kinki district. Pedigree analysis demonstrated that all the affected dogs and carriers with the pedigree information have a close blood relationship. CONCLUSIONS Our results showed that the current carrier frequency for GM1 gangliosidosis is on the average 1.02% in Japan and rather high in the Kinki district, which may be related to the high prevalence observed over the past 16 years in this region. This observation suggests that carrier dogs are distributed all over Japan; however, kennels in the Kinki district may face an increased risk of GM1 gangliosidosis. Therefore, for effective control and prevention of this disease, it is necessary to examine as many breeding dogs as possible from all regions of Japan, especially from kennels located in areas with high prevalence and carrier frequency.
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Affiliation(s)
- Mohammad M Uddin
- Laboratory of Clinical Pathology, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Kohrimoto, Kagoshima 890-0065, Japan
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10
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Datta R, Lee J, Duda J, Avants BB, Vite CH, Tseng B, Gee JC, Aguirre GD, Aguirre GK. A digital atlas of the dog brain. PLoS One 2012; 7:e52140. [PMID: 23284904 PMCID: PMC3527386 DOI: 10.1371/journal.pone.0052140] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 11/08/2012] [Indexed: 01/24/2023] Open
Abstract
There is a long history and a growing interest in the canine as a subject of study in neuroscience research and in translational neurology. In the last few years, anatomical and functional magnetic resonance imaging (MRI) studies of awake and anesthetized dogs have been reported. Such efforts can be enhanced by a population atlas of canine brain anatomy to implement group analyses. Here we present a canine brain atlas derived as the diffeomorphic average of a population of fifteen mesaticephalic dogs. The atlas includes: 1) A brain template derived from in-vivo, T1-weighted imaging at 1 mm isotropic resolution at 3 Tesla (with and without the soft tissues of the head); 2) A co-registered, high-resolution (0.33 mm isotropic) template created from imaging of ex-vivo brains at 7 Tesla; 3) A surface representation of the gray matter/white matter boundary of the high-resolution atlas (including labeling of gyral and sulcal features). The properties of the atlas are considered in relation to historical nomenclature and the evolutionary taxonomy of the Canini tribe. The atlas is available for download (https://cfn.upenn.edu/aguirre/wiki/public:data_plosone_2012_datta).
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Affiliation(s)
- Ritobrato Datta
- Department of Neurology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Jongho Lee
- Department of Radiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Jeffrey Duda
- Department of Radiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Brian B. Avants
- Department of Radiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Charles H. Vite
- Section of Neurology, Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Ben Tseng
- Department of Neurology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - James C. Gee
- Department of Radiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Gustavo D. Aguirre
- Section of Ophthalmology, Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Geoffrey K. Aguirre
- Department of Neurology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Mizukami K, Kawamichi T, Koie H, Tamura S, Matsunaga S, Imamoto S, Saito M, Hasegawa D, Matsuki N, Tamahara S, Sato S, Yabuki A, Chang HS, Yamato O. Neuronal ceroid lipofuscinosis in Border Collie dogs in Japan: clinical and molecular epidemiological study (2000-2011). ScientificWorldJournal 2012; 2012:383174. [PMID: 22919312 PMCID: PMC3417203 DOI: 10.1100/2012/383174] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 05/03/2012] [Indexed: 11/25/2022] Open
Abstract
Neuronal ceroid lipofuscinosis (NCL) is an inherited, neurodegenerative lysosomal disease that causes premature death. The present study describes the clinical and molecular epidemiologic findings of NCL in Border Collies in Japan for 12 years, between 2000 and 2011. The number of affected dogs was surveyed, and their clinical characteristics were analyzed. In 4 kennels with affected dogs, the dogs were genotyped. The genetic relationships of all affected dogs and carriers identified were analyzed. The survey revealed 27 affected dogs, but there was a decreasing trend at the end of the study period. The clinical characteristics of these affected dogs were updated in detail. The genotyping survey demonstrated a high mutant allele frequency in examined kennels (34.8%). The pedigree analysis demonstrated that all affected dogs and carriers in Japan are related to some presumptive carriers imported from Oceania and having a common ancestor. The current high prevalence in Japan might be due to an overuse of these carriers by breeders without any knowledge of the disease. For NCL control and prevention, it is necessary to examine all breeding dogs, especially in kennels with a high prevalence. Such endeavors will reduce NCL prevalence and may already be contributing to the recent decreasing trend in Japan.
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Affiliation(s)
- Keijiro Mizukami
- Laboratory of Clinical Pathology, Department of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
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