Abstract

Schizophrenia is a frequently chronic psychiatric illness associated with significant morbidity and loss of functioning. Two important neurotransmitter systems, dopamine and glutamate, have been implicated in the production of symptoms in schizophrenia, but the relative contributions of the two systems and of their interaction, are unknown. The purpose of this study is to learn more about the interactions between glutamate and dopamine in normal subjects. Specifically, we will examine the effects of decreased glutamate transmission on amphetamine-induced dopamine release. We propose to test the hypothesis that administration to healthy volunteers of the glutamate antagonist ketamine will produce a dysregulation of dopamine neurons similar to the dysregulation observed in patients with schizophrenia. If this hypothesis were confirmed, it would open a bridge between the dopamine and glutamate hypotheses of schizophrenia.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
2M01RR000645-29
Application #
6307066
Study Section
Project Start
1999-12-01
Project End
2000-11-30
Budget Start
Budget End
Support Year
29
Fiscal Year
2000
Total Cost
Indirect Cost

  Institution

Name
Columbia University (N.Y.)
Department
Type
DUNS #
167204994
City
New York
State
NY
Country
United States
Zip Code
10032

  Publications

Melhem, Nadine M; Keilp, John G; Porta, Giovanna et al. (2016) Blunted HPA Axis Activity in Suicide Attempters Compared to those at High Risk for Suicidal Behavior. Neuropsychopharmacology 41:1447-56
Dong, Chuanhui; Della-Morte, David; Rundek, Tatjana et al. (2016) Evidence to Maintain the Systolic Blood Pressure Treatment Threshold at 140 mm?Hg for Stroke Prevention: The Northern Manhattan Study. Hypertension 67:520-6
Buckley, Jessie P; Engel, Stephanie M; Braun, Joseph M et al. (2016) Prenatal Phthalate Exposures and Body Mass Index Among 4- to 7-Year-old Children: A Pooled Analysis. Epidemiology 27:449-58
Leung, Vivien; Chiu, Ya-Lin; Kotler, Donald P et al. (2016) Effect of Recombinant Human Growth Hormone and Rosiglitazone for HIV-Associated Abdominal Fat Accumulation on Adiponectin and other Markers of Inflammation. HIV Clin Trials 17:55-62
Rosenbaum, Michael; Leibel, Rudolph L (2016) Models of energy homeostasis in response to maintenance of reduced body weight. Obesity (Silver Spring) 24:1620-9
Garyu, Justin W; Meffre, Eric; Cotsapas, Chris et al. (2016) Progress and challenges for treating Type 1 diabetes. J Autoimmun 71:1-9
Widen, Elizabeth M; Whyatt, Robin M; Hoepner, Lori A et al. (2016) Gestational weight gain and obesity, adiposity and body size in African-American and Dominican children in the Bronx and Northern Manhattan. Matern Child Nutr 12:918-28
Maresca, Michelle M; Hoepner, Lori A; Hassoun, Abeer et al. (2016) Prenatal Exposure to Phthalates and Childhood Body Size in an Urban Cohort. Environ Health Perspect 124:514-20
Tooley, James E; Vudattu, Nalini; Choi, Jinmyung et al. (2016) Changes in T-cell subsets identify responders to FcR-nonbinding anti-CD3 mAb (teplizumab) in patients with type 1 diabetes. Eur J Immunol 46:230-41
Peterson, Bradley S; Rauh, Virginia A; Bansal, Ravi et al. (2015) Effects of prenatal exposure to air pollutants (polycyclic aromatic hydrocarbons) on the development of brain white matter, cognition, and behavior in later childhood. JAMA Psychiatry 72:531-40

Showing the most recent 10 out of 1103 publications