|
|
|||||||||||
|
Journal of Psychoactive
Drugs |
|||||||||||
|
Reward Deficiency syndrome (RDS): A biogenic
model for the diagnosis and treatment of impulsive, addictive, and
compulsive behaviors. |
|||||||||||
|
Kenneth Blum, Ph. D.* -
Eric R. Braverman, M.D.** - Jay M. Holder, D.C.*** |
|||||||||||
|
*Adjunct
Professor, Department of Biological Sciences, University of North Texas,
Denton, Texas; President and CEO, PharmcoGenomics, San Antonio, Texas;
Medical and Scientific Director, Department of Clinical Sciences, PATH
Medical Foundation, New York, New York; Cofounder and Vice President,
American College of Addictionology and Compulsive Disorders, Miami
Beach, Florida; Board of Directors, PATH Foundation and ACACD. **Medical Directors, Department of Clinical Sciences, PATH Medical Foundation, New York, New York; Department of Psychiatry, New York School of Medicine, New York; Board of Directors PATH Foundation. ***Cofounder and President, American College of Addictionology and Compulsive Disorders, Miami Beach, Florida; Department of Addiction Studies, Graceland University, Independence, Missouri; Chairman, Department of Addiction Medicine, Exodus Israel/Bikur Cholim Hospital, Jerusalem, Israel. ****Professor, University of Tennessee, Knoxville, Tennessee. *****Clinical Director, Family Psychology Institute & Attention Disorders Clinic, Endicott, New York. ******Ph.D. candidate and Adjunct Professor, Department of Addiction Studies, Graceland University, Independence, Missouri. ********Director, Southeastern Biofeedback Institute, Knoxville, Tennessee. *********Director, Toxicology Research Center, Chang Jung Christian University, Tainan, Taiwan, Republic of China. **********Chairman, Department of Medical Genetics, City of Hope National Medical Center, Duarte, California. |
|||||||||||
|
The
dopaminergic system, and in particular the dopamine D2 receptor, has
been profoundly implicated in reward mechanisms in the brain.
Dysfunction of the D2 dopamine receptors leads to aberrant substance
seeking behavior which includes but is not limited to alcohol, drug,
tobacco, and food and other related behaviors (pathological gambling,
Tourettes and attention deficit hyperactivity disorder). In this
paper we propose that genetic variants of the D2 dopamine receptor gene
and other reward genes are important common genetic determinants
of the emerging concept first coined by Blum REWARD DEFICIENCY
SYNDROME. This article reviews the results of studies concerning
particular classes of biological phenotypes that may have relevance to
not only alcohol dependence but to the above mentioned related
addictive, compulsive and impulsive disorders. Broadly defined these
classes include brain neurotransmitter systems and neutriceutical potentials. Evidence is presented from many global scientific studies,
concerning genotypic variation in severe alcoholics, high- risk
relatives, psycho-stimulant abusers, opiate addicts, carbohydrate
bingers, dependant tobacco smokers, polysubstance seekers, pathological
gamblers, violent offenders schizoid/avoidant personality types and
ADHD, Tourettes and Autism among other related RDS behaviors. The
results of these studies strongly suggest that etiology of RDS is
mediated in part through sub-optimal neurotransmitter functioning, in
particular a hypodopaminergic activity. The paper also points out the
fact that genetic antecedents for RDS behaviors are polygenic in nature
and multiple gene variants contribute to the overall variance of the
syndrome. Research opportunities are offered with respect to specific
candidate genes that have been cloned from these neurotransmitter
systems that could be most fully utilized in both association and
possibly family based linkage studies, only if 1000s of probands
are employed in the latter case. Additional evidence is submitted,
suggesting that characteristics of particular neuroelectric potentials
(e.g. the amplitude and the latency of the P300 components of the
event-related potential) may provide the cleanest dimension of potential
markers that could be used to identify children at risk for RDS. The
paper also discusses the conflicting findings with regard to the
association studies of the minor Taq1 A1 allele of the dopamine D2
receptor (DRD2) gene with alcoholism. The authors conclude that meta
analyses strongly favor the positive association and failure of
association is due to failure to assess alcoholics for severity of their
disorder and to screen controls for substance use and others RDS
behaviors. The article favorably reviews data involving the use of
multiple modalities for the treatment of RDS including pharmaceutical, NEUTRICEUTICAL, neurofeedback, electrophysiological,
AURICULOTHERAPY and CHIROPRACTIC. Further studies involving well defined animal models of
RDS, such as the Lewis rat, showing hypodopaminergic limbic function,
provides the field with a model to dissect the multiple genetic
mechanisms involved in this complex disorder, possibly by employing
Quantative Trait Loci experiments. Finally, multiple domains of inquiry
should not be viewed as unfocused but rather as an economical
means for utilizing highly characterized samples of potential RDS
probands meeting rigorous research criteria. |
|||||||||||
| Main
Page II About Dr. Holder
II Overview II Dates
& Locations Course Outline II Registration II Reasons To Attend Research & Related Articles II Products II The Integartor |
|||||||||||
| ©2001
The Torque Release Technique The Integrator U.S. Patent# 5,632,765 Foreign Patents Pending - All Rights Reserved Site Designed & Hosted By: Bratpak Internet Services |