Bernese Mountain Dog Club of America
Health Research - Studies
Health Research - Studies
Health Research studies and projects covered in this document are as follows:
Histiocytosis;
Mast cell tumors / Mastocytoma;
Lymphoma / Lymphosarcoma;
Hemangiosarcoma;
Osteosarcoma;
Melanoma;
Degenerative myelopathy;
Portosystemic shunt [liver shunt];
Epilepsy;
Progressive retinal atrophy;
BMD DNA Repository.
If your Bernese Mountain Dog has been diagnosed with any of the diseases listed above we encourage you to become a part of the solution. Participation in health research studies can be done simply by providing data you already have or by providing simple lab tests performed or collected by your veterinarian. The information you share with researchers by participating in health research studies will enable them to provide our breed community with legitimate, scientifically proven information on diseases which affect the Bernese Mountain Dog's length and quality of life.
Healthy Berners Can Help Too! Studies are noted.
OVERVIEW - MALIGNANT HISTIOCYTOSIS
Malignant histiocytosis is a hereditary disease found in the Bernese Mountain Dog. The disease is characterized by histiocytic infiltration of the lungs and lymph nodes. The liver, spleen, and central nervous system can also be affected. Histiocytes are a component of the immune system that proliferate abnormally in this disease.
For more information on this disease please see:
http://www.histiocytosis.ucdavis.edu/
http://www.bmdinfo.org/Health/Histiocytic_Diseases_of_the_Bernese_Mountain_Dog.php
The following researchers are collaborating on: Hemangiosarcoma,Osteosarcoma, Melanoma and Lymphoma. They can all be contacted for information on submitting samples for these cancers.
OVERVIEW - DEGENERATIVE MYELOPATHY
Degenerative myelopathy is a progressive disease of the spinal cord in older dogs.
See Degenerative Myelopathy Basics at: http://www.caninegeneticdiseases.net/DM/basicDM.htm for more information.
ADDITIONAL EDUCATIONAL MATERIALS - DEGENERATIVE MYELOPATHY
Article by R.M. Clemmons, DVM, PhD
Associate Professor of Neurology & Neurosurgery, University of Florida
http://neuro.vetmed.ufl.edu/neuro/DM_Web/DMofGS.htm
AKC Canine Health Foundation DM Videos
'Dr. Richard Vulliet on Degenerative Myelopathy' & 'How to Care for a Dog with Degenerative Myelopathy'
AKC CHF website at: http://www.akcchf.org/video/
ABOUT THIS DISEASE
Portosystemic shunt (PSS) is a devastating congenital condition which affects the liver. There are different types of shunts; congenital portosystemic shunt (CPSS) and primary portal vein hypoplasia (PPVH).
The liver is essential in removing many toxins formed in the intestines. Blood from the portal vein is essential for normal liver growth and function. In a dog with a liver shunt, blood from the portal vein does not reach the liver. As a consequence, the liver does not grow to a size commensurate with the body's needs. In the case of a shunt, toxins bypass the filtering processes of the liver to reach the systemic blood circulation and ultimately the brain. One of the most damaging of neurotoxins is ammonia, which when it reaches the brain disrupts normal brain function. Symptoms of liver shunts in dogs usually show up at an early age. In some cases, signs of a canine liver shunt don't show up until a dog is older, when kidney and bladder problems, such as stones, develop.
Liver Shunt symptoms include: Depression, failure to grow at a normal rate, behavioral changes (staring into space, circling, and disorientation), weakness or lethargy, seizures, inability to gain weight, too much weight gain, vomiting and diarrhea
Surgery is the only long-term treatment, but is not always successful. In Bernese Mountain Dogs the abnormal blood vessel typically lies inside the liver. Such shunts are called intrahepatic Portosystemic shunts (IHPSS).
ABOUT THIS DISEASE
Epilepsy (sometimes referred to as a seizure disorder) is a common chronic neurological disorder that is characterized by recurrent unprovoked seizures. These seizures are transient signs and/or symptoms due to abnormal, excessive or synchronous neuronal activity in the brain. Epilepsy is usually controlled, but not cured, with medication. Epilepsy should not be understood as a single disorder, but rather as a group of syndromes with vastly divergent symptoms but all involving episodic abnormal electrical activity in the brain.
ABOUT THIS DISEASE
Progressive retinal atrophy (PRA) is a long recognized hereditary, blinding disorder. It is inherited as a simple autosomal recessive in most breeds. The first modern description of this problem was in Gordon Setters in Europe, in 1911, but since then PRA has been recognized in most purebred dogs.
As part of our mission to improve the health and longevity of our Berners, the Berner-Garde Foundation (BGF) and Michigan State University (MSU), with support from the Bernese Mountain Dog Club of America (BMDCA), have established a Repository that collects, stores and maintains DNA and tumor tissue samples from Bernese Mountain Dogs. The goal of the Repository is to facilitate research on serious genetic diseases affecting the breed. The samples collected, along with the health and pedigree information in the Berner-Garde Database will assist researchers who have been hampered in the past by the lack of samples as well as insufficient medical and pedigree information.
