Dr. Kate Meurs has identified genetic mutation responsible for causing cardiomyopathy in Dobermans
DCPA announced to their email list on Sept 29, 2010 that Dr. Kate Meurs of Washington State University College of Veterinary Medicine has identified a genetic mutation responsible for causing cardiomyopathy in Dobermans. A reasonably priced test will be commercially available in about two weeks through the Veterinary Cardiac Genetics Laboratory at WSU.
Dr. Meurs came to the National to present her findings and answer questions.
Click here to learn more AND watch a video recording of Dr. Meurs speach
Dr. Meurs deserves many accolades for this long awaited accomplishment for our breed!
Kathy Davieds DVM
Stem Cell Therapy for Dilated Cardiomyopathy
Learn more about the process & watch a speach Dr. Estrada gave on 10/04/10
If you know of any current studies, please inform us! admin@DobermanData.com
American Journal of Veterinary Research
July 2011, Vol. 72, No. 7, Pages 932-939
Evaluation of 10 genes encoding cardiac proteins in Doberman Pinschers with dilated cardiomyopathy
M. Lynne O'Sullivan, DVM, DVSc; Michael R. O'Grady, DVM, MS; W. Glen Pyle, PhD; John F. Dawson, PhD
Department of Clinical Studies, University of Guelph, Guelph, ON N1G 2W1, Canada. (O'Sullivan, O'Grady); Department of Biomedical Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada. (Pyle); Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. (Dawson)
Supported by OVC Pet Trust, Ontario Veterinary College, University of Guelph.
The authors thank Shu Chen and Jiping Li for technical assistance.
Address correspondence to Dr. Dawson (firstname.lastname@example.org).
Objective-To identify a causative mutation for dilated cardiomyopathy (DCM) in Doberman Pinschers by sequencing the coding regions of 10 cardiac genes known to be associated with familial DCM in humans.
Animals-5 Doberman Pinschers with DCM and congestive heart failure and 5 control mixed-breed dogs that were euthanized or died.
Procedures-RNA was extracted from frozen ventricular myocardial samples from each dog, and first-strand cDNA was synthesized via reverse transcription, followed by PCR amplification with gene-specific primers. Ten cardiac genes were analyzed: cardiac actin, a-actinin, a-tropomyosin, B-myosin heavy chain, metavinculin, muscle LIM protein, myosinbinding protein C, tafazzin, titin-cap (telethonin), and troponin T. Sequences for DCM-affected and control dogs and the published canine genome were compared.
Results-None of the coding sequences yielded a common causative mutation among all Doberman Pinscher samples. However, 3 variants were identified in the a-actinin gene in the DCM-affected Doberman Pinschers. One of these variants, identified in 2 of the 5 Doberman Pinschers, resulted in an amino acid change in the rod-forming triple coiled-coil domain.
Conclusions and Clinical Relevance-Mutations in the coding regions of several genes associated with DCM in humans did not appear to consistently account for DCM in Doberman Pinschers. However, an a-actinin variant was detected in some Doberman Pinschers that may contribute to the development of DCM given its potential effect on the structure of this protein. Investigation of additional candidate gene coding and noncoding regions and further evaluation of the role of a-actinin in development of DCM in Doberman Pinschers are warranted.
Recap - They belive there are 3 mutations, and on 3 different chromosomes (5, 8 and 14) This new mutation on chromosome 8 has 40% accuracy as 40% of the affected dogs had the mutation. The disease DCM is polygenic, more than one gene can cause DCM. It also gives more support to the studies that DCM is a polygenic heritage.
2011 - A Locus on Chromosome 5 Is Associated with Dilated Cardiomyopathy in Doberman Pinschers
Received: February 16, 2011; Accepted: April 11, 2011; Published: May 20, 2011
Mausberg T-B, Wess G, Simak J, Keller L, Drögemüller M, et al. (2011) A Locus on Chromosome 5 Is Associated with Dilated Cardiomyopathy in Doberman Pinschers. PLoS ONE 6(5): e20042. doi:10.1371/journal.pone.0020042
2007 - Canine Heart Failure--Current Concepts
Clarke E. Atkins, DVM, DACVIM (Internal Medicine & Cardiology)
Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine
Therapeutic Advances in the Management of Heart Disease: An Overview
Canine Heart Failure - WSAV207.pdf
2002 - DCM In Doberman Pinschers: Lessons Learned In The First Decade Of Study
Michael O'Grady, DVM, MS, DACVIM
2007 - A Prospective Genetic Evaluation of Familial Dilated
Cardiomyopathy in the Doberman Pinscher
Kathryn M. Meurs, Philip R. Fox, Michelle Norgard, Alan W. Spier, Allison Lamb, Shianne L. Koplitz,
and Ryan D. Baumwart
If you know of any good research articles, please inform us! admin@DobermanData.com