Schizophrenia and the parvalbumin-containing class of cortical local circuit neurons.
OBJECTIVE
The purpose of this study was to test the hypothesis that abnormalities in the parvalbumin-containing subclass of local circuit neurons contribute to altered gamma-aminobutyric acid (GABA) neurotransmission in the prefrontal cortex of schizophrenic subjects.


METHODS
Profile counts and somal size measures were made of parvalbumin-immunoreactive neurons in areas 9, 46, and 17 from 15 matched pairs of schizophrenic and normal comparison subjects.


RESULTS
No differences in relative density, laminar distribution, or somal size of labeled neurons were found in any region.


CONCLUSIONS
These findings suggest that altered GABA neurotransmission in schizophrenia is due to either abnormalities in other sub-populations of prefrontal cortical GABA neurons or abnormalities in the parvalbumin-containing subclass that could not be detected in the present study.
Woo
T U
TU
Department of Psychiatry, University of Pittsburgh, PA 15213, USA.
Miller
J L
JL
Lewis
D A
DA
D002452:Cell Count; D006801:Humans; D008297:Male; D008875:Middle Aged; D009474:Neurons / Q000737:chemistry / Q000166:cytology; D010320:Parvalbumins / Q000032:analysis* / Q000276:immunology; D017397:Prefrontal Cortex / Q000737:chemistry* / Q000166:cytology / Q000503:physiopathology; D012559:Schizophrenia / Q000175:diagnosis* / Q000503:physiopathology; D009435:Synaptic Transmission / Q000502:physiology; D005680:gamma-Aminobutyric Acid / Q000502:physiology
D010320:Parvalbumins; D005680:gamma-Aminobutyric Acid