1
|
Bravaccini B, Buffagni V, Negro L, Bertolini G, Burbaite E, Menchetti M. Mucopolysaccharidosis VI in a European Shorthair cat: Neurological presentation, computed tomography findings and genetic investigation. Acta Vet Hung 2022; 70:201-206. [PMID: 36037045 DOI: 10.1556/004.2022.00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/02/2022] [Indexed: 11/19/2022]
Abstract
The present case report describes the clinical signs of a 10-month-old, intact female, Domestic Shorthair cat presented with a history of chronic progressive difficulty to walk with the four limbs. The physical and neurological examinations revealed skeletal deformities, corneal opacity and a severe spastic non-ambulatory tetraparesis. Complete blood count and biochemistry profiles were unremarkable. Diffuse bone rarefaction, hyperostosis and an apparent fusion of the vertebral bodies were observed on spinal radiographs. A non-contrast computed tomography (CT) exam of the whole body of the patient was performed. Based on the medical history, clinical findings, laboratory analysis, spinal radiographs and CT findings, a lysosomal storage disorder was suspected. Genetic testing for mucopolysaccharidosis VI and VII revealed a genetic mutation, ARSB variant L476P, confirming the diagnosis of mucopolysaccharidosis type VI.
Collapse
Affiliation(s)
- Beatrice Bravaccini
- 1 Neurology and Neurosurgery Division, San Marco Veterinary Clinic, Viale dell'Industria 3, 35030 Veggiano (PD), Italy
| | - Valentina Buffagni
- 1 Neurology and Neurosurgery Division, San Marco Veterinary Clinic, Viale dell'Industria 3, 35030 Veggiano (PD), Italy
| | - Linda Negro
- 2 Diagnostic and Interventional Radiology Division, San Marco Veterinary Clinic, Veggiano (PD), Italy
| | - Giovanna Bertolini
- 2 Diagnostic and Interventional Radiology Division, San Marco Veterinary Clinic, Veggiano (PD), Italy
| | - Evelina Burbaite
- 3 Dr. L. Kriaučeliūnas Small Animal Clinic, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Marika Menchetti
- 1 Neurology and Neurosurgery Division, San Marco Veterinary Clinic, Viale dell'Industria 3, 35030 Veggiano (PD), Italy
| |
Collapse
|
2
|
Anderson H, Davison S, Lytle KM, Honkanen L, Freyer J, Mathlin J, Kyöstilä K, Inman L, Louviere A, Chodroff Foran R, Forman OP, Lohi H, Donner J. Genetic epidemiology of blood type, disease and trait variants, and genome-wide genetic diversity in over 11,000 domestic cats. PLoS Genet 2022; 18:e1009804. [PMID: 35709088 PMCID: PMC9202916 DOI: 10.1371/journal.pgen.1009804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 05/06/2022] [Indexed: 11/30/2022] Open
Abstract
In the largest DNA-based study of domestic cats to date, 11,036 individuals (10,419 pedigreed cats and 617 non-pedigreed cats) were genotyped via commercial panel testing elucidating the distribution and frequency of known disease, blood type, and physical trait associated genetic variants across cat breeds. This study provides allele frequencies for many disease-associated variants for the first time and provides updates on previously reported information with evidence suggesting that DNA testing has been effectively used to reduce disease associated variants within certain pedigreed cat populations over time. We identified 13 disease-associated variants in 47 breeds or breed types in which the variant had not previously been documented, highlighting the relevance of comprehensive genetic screening across breeds. Three disease-associated variants were discovered in non-pedigreed cats only. To investigate the causality of nine disease-associated variants in cats of different breed backgrounds our veterinarians conducted owner interviews, reviewed clinical records, and invited cats to have follow-up clinical examinations. Additionally, genetic variants determining blood types A, B and AB, which are relevant clinically and in cat breeding, were genotyped. Appearance-associated genetic variation in all cats is also discussed. Lastly, genome-wide SNP heterozygosity levels were calculated to obtain a comparable measure of the genetic diversity in different cat breeds. This study represents the first comprehensive exploration of informative Mendelian variants in felines by screening over 10,000 pedigreed cats. The results qualitatively contribute to the understanding of feline variant heritage and genetic diversity and demonstrate the clinical utility and importance of such information in supporting breeding programs and the research community. The work also highlights the crucial commitment of pedigreed cat breeders and registries in supporting the establishment of large genomic databases, that when combined with phenotype information can advance scientific understanding and provide insights that can be applied to improve the health and welfare of cats. Domestic cats are one of the world’s most popular companion animals, of which pedigreed cats represent small unique subpopulations. Genetic research on pedigreed cats has facilitated discoveries of heritable conditions resulting in the availability of DNA testing for studying and managing inherited disorders and traits in specific cat breeds. We have explored an extensive study cohort of 11,036 domestic cat samples representing pedigreed cats of 90 breeds and breed types. This work provided insight into the heritage of feline disease and trait alleles. We gained knowledge on the most common and relevant genetic markers for inherited disorders and physical traits, and the genetic determinants of the clinically relevant AB blood group system. We also used a measure of genetic diversity to compare inbreeding levels within and between breeds. This information can help support sustainable breeding goals within the cat fancy. Direct-to-consumer genetic tests help to raise awareness of various inherited single gene conditions in cats and provide information that owners can share with their veterinarians. In due course, ventures of this type will enable the genetics of common complex feline disease to be deciphered, paving the way for precision healthcare with the potential to ultimately improve welfare for all cats.
Collapse
Affiliation(s)
- Heidi Anderson
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
- * E-mail:
| | - Stephen Davison
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Katherine M. Lytle
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Leena Honkanen
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Jamie Freyer
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Julia Mathlin
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Kaisa Kyöstilä
- 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
| | - Laura Inman
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Annette Louviere
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Rebecca Chodroff Foran
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - Oliver P. Forman
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| | - 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
| | - Jonas Donner
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Portland, Oregon, United States of America
| |
Collapse
|
3
|
Alhaddad H, Abdi M, Lyons LA. Patterns of allele frequency differences among domestic cat breeds assessed by a 63K SNP array. PLoS One 2021; 16:e0247092. [PMID: 33630878 PMCID: PMC7906347 DOI: 10.1371/journal.pone.0247092] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/01/2021] [Indexed: 01/11/2023] Open
Abstract
Cats are ubiquitous companion animals that have been keenly associated with humans for thousands of years and only recently have been intentionally bred for aesthetically appealing coat looks and body forms. The intense selection on single gene phenotypes and the various breeding histories of cat breeds have left different marks on the genomes. Using a previously published 63K Feline SNP array dataset of twenty-six cat breeds, this study utilized a genetic differentiation-based method (di) to empirically identify candidate regions under selection. Defined as three or more overlapping (500Kb) windows of high levels of population differentiation, we identified a total of 205 candidate regions under selection across cat breeds with an average of 6 candidate regions per breed and an average size of 1.5 Mb per candidate region. Using the combined size of candidate regions of each breed, we conservatively estimate that a minimum of ~ 0.1-0.7% of the autosomal genome is potentially under selection in cats. As positive controls and tests of our methodology, we explored the candidate regions of known breed-defining genes (e.g., FGF5 for longhaired breeds) and we were able to detect the genes within candidate regions, each in its corresponding breed. For breed specific exploration of candidate regions under selection, eleven representative candidate regions were found to encompass potential candidate genes for several phenotypes such as brachycephaly of Persian (DLX6, DLX5, DLX2), curled ears of American Curl (MCRIP2, PBX1), and body-form of Siamese and Oriental (ADGRD1), which encourages further molecular investigations. The current assessment of the candidate regions under selection is empiric and detailed analyses are needed to rigorously disentangle effects of demography and population structure from artificial selection.
Collapse
Affiliation(s)
- Hasan Alhaddad
- Department of Biological Sciences, Kuwait University, Safat, Kuwait
| | - Mona Abdi
- Department of Biological Sciences, Kuwait University, Safat, Kuwait
| | - Leslie A. Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, Columbia, Missouri, United States of America
| |
Collapse
|
4
|
Lyons LA, Buckley RM. Direct-to-Consumer Genetic Testing for Domestic Cats. Vet Clin North Am Small Anim Pract 2020; 50:991-1000. [PMID: 32665138 DOI: 10.1016/j.cvsm.2020.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The era of precision/genomic medicine has arrived, including its application within veterinary medicine for the health care of companion animals. The plummeting costs of assaying large groups of genetic tests into one panel has led many laboratories offering direct-to-consumer (DTC) genetic testing for animals, including cats. However, proper education of the consumer and the veterinarian is lacking, causing a significant lack of genetic counseling pertaining to the results of the genetic tests. This article addresses the current state of DTC testing in domestic cats and the implications for veterinary care.
Collapse
Affiliation(s)
- Leslie A Lyons
- Department of Veterinary Medicine & Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 825 East Campus Loop, Columbia, MO 65211, USA.
| | - Reuben M Buckley
- Department of Veterinary Medicine & Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 825 East Campus Loop, Columbia, MO 65211, USA
| |
Collapse
|
5
|
Santos C, Amude A, Araújo F, Bezerra F, Nogueira J, Gouveia J, Baraúna Júnior D. Achados clínicos, histopatológicos e moleculares da mielopatia degenerativa canina: relato de caso. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO Objetivou-se descrever os achados clínicos, histopatológicos e moleculares associados à MDC em um cão da raça Pastor-Suiço. O cão possuía uma paraparesia progressiva em membros pélvicos e foi submetido a avaliações clínicas, pelas quais se obteve, entre outros diferenciais, o diagnóstico presuntivo de MDC. Com a evolução dos sinais, o tutor optou pela eutanásia. Os achados histopatológicos da medula espinhal foram compatíveis com uma degeneração segmentar axonal e mielínica. O diagnóstico molecular foi realizado por meio da extração do DNA obtido por swab oral. Uma PCR foi otimizada utilizando-se primers descritos em literatura para amplificar a região do gene SOD1. A amostra foi, então, submetida a sequenciamento unidirecional, que revelou que o animal em questão era homozigoto para o alelo A para a mutação c.118G>A no éxon 2 do gene SOD1. O diagnóstico clínico presuntivo da MDC no presente caso foi esclarecido por meio dos achados histopatológicos, associados aos achados clínicos, e da sua caracterização molecular. Ressalta-se a contribuição deste relato, que traz aspectos clínicos, histopatológicos e moleculares associados à MDC na raça Pastor-Suíço, para a qual, até o presente momento, na literatura consultada, não há relato dessa enfermidade.
Collapse
Affiliation(s)
- C.R.O. Santos
- Universidade Federal do Vale do São Francisco, Brazil
| | | | | | | | - J.F. Nogueira
- Universidade Federal do Vale do São Francisco, Brazil
| | | | | |
Collapse
|