30 years in the making: Historical 'markers' in the evolution of a database which is now called Berner-Garde by B. G. Packard 10/00
In 1971, when the BMDCA was 3 years old, and there were no regional
clubs yet, the first entries were made in a database that became
the backbone of the Berner-Garde Foundation. It is not surprising
that the idea was born in the Silicon Valley of the SanFrancisco
Bay area where the Packards attended a course at UC Santa Cruz
to learn how to use the SPSS program (a punchcard input to a time-share
mainframe) to computerize the data on growing numbers of Berners.
It started with recording their vital statistics, their people
connection and beginnings of health records by adding the first
three OFA hip-screening numbers 1, 2, and 3. When the S.F. Bay
Berners was formed in 1974, this program was adapted to also keep
the necessary club records.
In Novermber, 1985, when the SFBB heard that Dr. George Padgett,
MI State, was interested in finding out what breed clubs were
doing anything about genetic defects, it was arranged to show
him this database. It was reassuring to find that this was the
first program he had seen that was adequate to fill the needs
for the open-type registry that he was promoting as necessary
for genetic disease control by breed groups. The message was made
clear that the location of affected animals in a family was the
only way to locate the ones that carried disease genes but did
not show it themselves.
In 1986, this database was first displayed as a national database
at the San Francisco BMDCA Specialty.
In 1989, a study of cancer in the BMD was launched on an entire-breed
basis with Morris Animal Foundation matching a BMDCA Grant. This
study was published in 1995 in the Journal of Small Animal Practice,
using the data from the above described database. Up to this point,
all of the cases had been entered by the same person, a BMDCA
member.
Also in 1989, an international meeting of experts on elbow dysplasia
recommended the formation of an open-type registry in the USA.
When OFA declined this request, the GDC was born (Genetic Disease
Control in Animals Service).
In 1994 the BMDCA arranged for the GDC to set up tumor registries
which were appropriate for the continued collection of BMD inherited
tumors as noted in the soon-to-be-published manuscript as well
as all other tumors for further research. This made it possible
for cases to be entered by persons outside of the breed membership
and for the data to be added to the KinReport of the GDC which
is the tool that allows breeders to improve their choice of breeding
stock. For BMD, this includes screening exams for joints, eyes,
subaortic stenosis and epilepsy.
After several years of waxing/waning interest and concern at national
level in the activities that were necessary to maintain the database,
a steering committee proposed that the Berner-Garde Foundation
be incorporated. One of the observations that was made repeatedly
in different breed groups was that the persons that do well at
managing 'clubs and AKC events' may not be qualified or primarily
interested in addressing the sensitive area of genetic health
issues. The Steering Committee supposed that the Foundation would
be the center of health activities and would assure that the database
and its services would be managed by persons who accepted that
primary responsibility "to facilitate the orderly acquisition
and dissemination of information related to genetic traits in
Bernese Mountain Dogs and to provide for the perpetuity of the
database". From the start, one of the responsibilities at
both the Berner-Garde and GDC levels has been the evaluation of
where to draw the line that prevents invasion of privacy. The
advent of websites has increased the need for this understanding.
In 1995, the Berner-Garde Foundation was incorporated and received
nonprofit, tax-exempt status.
Some notes for understanding the relationship of breed databases like the Berner-Garde Foundation to the professional Disease Registries and Research Databases of the GDC:
Malcolm B. Willis, genetist at the University of Newcastle
on Tyne says that "while the bioengineers are busy trying
to assess the location of gene A or gene B, breeders can document
what is happening in their breeds in somewhat broader terms."
He says that scientists who develop tests for various diseases
need access to pedigrees, along with as much data about the lines
as possible. "If they haven't already done so, parent clubs
need to set up open databases for members to submit data on every
bitch mated and every litter bred, listing the consequences of
the matings and the fate of the litters." He says there is
urgent need to track litters, sex born, survival and date and
cause of death; what defects occurred and how were they diagnosed;
fertility figures are useful as well; how many bitches miss and
why; how common are monorchids. How many are born with mismarking
or wrong color. He mentions that raw data collected at breed level
can be a help in assessing the mode of inheritance of some defects
or point the way to a more complex, polygenic route.
Dr. George A. Padgett, retired, Michigan State pathologist,
first person to lobby extensively for the use of open disease
registries in the USA, offered the following description:
A breed database might be considered as a repository of anomalies
or other characteristics of a breed which may help a breeder potentially
alter the basic biology of their breed such as longevity, litter
size, color (both coat and eyes), and minor physical abnormalities
like tail kinks. These characteristics do not require the rigorous
diagnostic procedures which are necessary for the diagnosis of
disease entities. The knowledge of a confirmed disease will and
should be used by breeders to predict the occurrence of disease
or carrier status in their litter as a result of their choice
of a mate. Since these predictions will influence the choice of
individual animals in given mating situations, the basis of the
disease information must come from widely accepted diagnostic
procedures. The storage point of the disease information must
be the formal Registry.
Role of the GDC
Dr. Padgett says that responsible breed clubs "should seek
help from an institute like the GDC to establish open Registries
for the diseases in the breed that are known to be hereditary
and establish Research Databases for the diseases suspected to
be hereditary. These programs will become the source of known
or potential carriers of certain genetic defects and of animals
known to be clear of certain genetic defects." "It is
the obligation of the breeder to "register all animals that
are known or potential carriers with an appropriate open disease
registry." He reminds us of "the importance to substantiate
all data and agree on whose evaluation will be acceptable."
At the request of a breed club, the GDC will set up a Registry
for diseases that are known to be inherited, with properly diagnosed
cases for use in establishing breed averages of occurrence and
genotype risk predictions. This makes it possible for breeders
to select stock which is predicted to improve the breed by being
better than the current average for the breed. For diseases that
are suspected to be inherited, GDC will set up a Research Database
for gathering data to use in proving or disproving the genetic
nature of a disease in a particular breed.
Release Statement All diagnoses that are released to be registered at the GDC are submitted with an owner release statement and a pedigree of the dog. The procedure for getting samples from the dogs that are screened, for getting the samples to the proper evaluator to be diagnosed and then for getting that diagnosis into the GDC registries will vary depending upon the disease. For diseases that are diagnosed by radiograph, it is sent to the GDC where it is sent to their panel of experts; for diseases diagnosed by tissue sample, the sample is sent to specified pathologists, who in turn send the release form with their evaluation to the GDC for registration; for diseases identified by DNA, the sample is sent to the particular lab which identifies that DNA, then the resultant finding is sent to the GDC to be registered in that specific breed file, and so on. All of these diagnoses will be linked together in a KinReport that ties together all sibs and half-sibs that have been registered at the GDC.
Observing Trends of occurrence of not-known-to-be-hereditary
diseases........A breed database like the Berner-Garde
is a model of what can be accomplished with a collection of data
that is voluntarily submitted by dog owners without the requirement
that it must be substantiated by a third party. It is possible
to note trends which can be investigated. For instance, during
early days of data entry, it was noted that reports of tumors
were becoming numerous enough to draw attention. Another trend
that has been noted is the number of reports of epilepsy, either
psychomotor seizures or convulsions. Etc..
In a different category are the reports of increasing numbers
of SAS or PRA cases being registered. These diseases are already
accepted by the veterinary community as being hereditary so the
increase can be attributed to increase in numbers of carriers
that can then be identified in the population.
10/21/01 Note from BGP: This article was written just one
year ago, responding to a request from the editor of the Canadian
BMDC newsletter. An important sequal to this history is the question:
What is the relation of these databases to the currently developing
AKC/OFA database called CHIC?