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«Working to find the
causes of schizophrenia and bipolar disorder.»
Welcome
We hope study participants and their families,
researchers, mental health professionals, and the general public will find the information and resources
here helpful.
We encourage visitors to this site to click
here to give us feedback. Our Mission
Statement explains the goals of the project, started in 1983, by Ann
E. Pulver, Sc.D., and the Project History will
give you an idea of the progress we have made since we
began our work more than two decades ago. Below you will find an
update on the many aspects of our scientific research.
New
In 2007
Read our
Latest NewsLetter: Summer 2007 NewsLetter
New 5-Year Research Study
(2007-2012).
We have received additional funding from the National
Institute of Mental Health to conduct a new research study which will focus
on detecting the relationship between genes and the abilityof those affected
with sever psychiatric conditions to function
effectively in daily activities. We would
like to revisit many of the individuals of Ashkenazi descent who have
previously enrolled in our genetic studies.
We will visit individuals in their homes or another location of their
choice. Participants will be asked to take part in a brief
interview regarding their typical day-to-day functioning as well as to
perform simple tasks that contribute to practical daily functioning. Collaborators
on this new research include Philip
D. Harvey, Ph.D., and Chrisotopher
Bowie, Ph.D., at Mt. Sinai School of Medicine
in New York, and Thomas
Patterson, Ph.D. in the Department
of Psychiatry at the University of California at San Diego.
Support from The Wasie Foundation.
The Wasie Foundation is a
Minnesota-based philanthropic organization that has long supported innovative
interventions targeting schizophrenia, arthritis, cancer, and children’s
medical problems. They have provided generous support in the past year
to underwrite our communication efforts through this website and through our
newsletters. We are grateful for the opportunity to update the information you
find
on this website and for the ability to reach out to our volunteers through the
newsletters.
New
Scientific Collaborations.
We are please to announce 3 recently funded collaborative research projects
employing a variety of scientific approaches to help understand the genetic
basis of psychiatric disorders.
Dr.
David Valle, director of the McKusick-Nathans
Institute of Genetic Medicine here at Johns Hopkins, has been awarded a
NARSAD Distinguished Investigator award for 2007. NARSAD (the Mental Health
Research Association) funds these awards to allow proven investigators to test
exciting ideas for innovative studies. Dr. Valle will study the chromosome 10
candidate region for schizophrenia using DNA's from our Ashkenazi families.
Stephen Warren,
Chairman, Department of Human Genetics
at Emory University , has received 5-year funding through a federal grant from
NIH to study "copy number variation" (CNV) (gains and losses of
segments of DNA) using DNA's from our volunteer Ashkenazi Jewish families and
from our Ashkenazi Jewish Control Repository. Powerful new technologies have
become available to look at CNV's throughout the human genome and assess their
impact on gene expression and function.
Joseph
Cubells, MD, PhD, associate professor of Human Genetics and Psychiatry
and Behavioral Sciences at Emory University School of Medicine, will continue
his studies of a candidate gene for schizophrenia (gene name is DBH), in a new
federal grant from NIH. These studies will use highly sensitive assays for DBH
activity in plasma to identify novel target chromosomal regions contributing to
DBH activity. These analyses will use DNAs and blood samples from our
non-Ashkenazi European Caucasian families, generally collected as part of the
Maryland Epidemiology Sample.
These
exciting new collaborations take advantage of recent technological advances that
hold great promise to advance our state-of-the-art research goals.
SOME
OF OUR LABORATORY EFFORTS COMPLETED IN 2006:
- FINE
MAPPING IN CANDIDATE CHROMOSOMAL REGIONS. Using DNA available from over
800 Ashkenazi Jewish volunteer families, we are following up leads from scans
of the genome for schizophrenia susceptibility loci (chromosome 10q)(Fallin
et al., 2003) and bipolar disorder susceptibility loci (chromosome
18p11) (Fallin
et al., 2004).
The follow-up studies were be conducted using state-of-the-art dense marker
genotyping (Illumina BeadArrayTM technology) at the Johns Hopkins
SNP Center, and anlyses are on-going.
- SCANNING
WHOLE CHROMOSOMES. Using DNA available from our 140 non-Ashkenazi
volunteer families (many of whom volunteered as participants in the Maryland
Epidemiological Sample
(or M.E.S.)), we are following up leads from our previous independent
genome scan for schizophrenia susceptibility loci (chromosomes 8p, 13q, and
22q) (Blouin
et al., 1998)
and also are conducting a newer and more sensitive genome scan as part of a
collaborative investigation with 7 other international groups of scientists
(the combined family collection includes our 140 families and DNA from 850
other families). The marker genotyping for ~6000 markers has recently been
completed at the Center for Inherited Disease Research (CIDR) and analyses are
underway, to be published in 2007.
- SCANNING
GENES. In addition to scanning the genome looking for regions harboring
susceptibility genes, we also have taken a more direct approach by conducting
studies to look directly at variation in 64 candidate
genes for both bipolar disorder and schizophrenia. Genes were selected based
on previously reported associations and/or known biological function. The
family collections used for 'gene scanning' included DNA from all of our
eligible Ashkenazi Jewish families. These results were published in
the American Journal of Human Genetics
(Fallin et al., 2005),. In 2006, follow-up genotyping and analyses for the
most significant genes was completed. a manuscript is in preparation
Updated 23April
2007
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