Kazumi Suetake

The acute effects of sulpiride on the central dopamine turnover in rats: A quantitative histochemical study

Sulpiride accelerated the dopamine turnover preferentially in the mesolimbic as compared to the nigrostriatal dopamine system. However, the tuberoinfundibular dopamine turnover was not affected by sulpiride or haloperidol.

Dopamine-containing cells in rabbit nodose ganglia

Microspectrofluorometry of rabbit nodose ganglia exposed to formaldehyde vapor revealed that the intraganglionic fluorescent cells (SIF-cells) contain dopamine.

Biochemical and Histochemical Studies on Catecholamines in Bullfrog Spinal Ganglia

Abstract: Bullfrog spinal ganglia were subjected to two types of examination to determine whether catecholamines were present. A biochemical microassay developed by Kissinger and co‐workers and a histofluorescence technique for cellular demonstration of biogenic monoamines developed earlier by Falck and co‐workers were used. Bullfrog spinal ganglia and dorsal roots were found to contain catecholamines, primarily adrenaline.

Acute and Chronic Effects of Haloperidol on Dopamine Fluorescence in the Median Eminence and on Plasma Prolactin Prolactin Levels in Rát

ABSTRACT Time course studies of the effects of haloperidol (2 mg/kg) on alpha-methyltyrosine-induced dopamine fluorescence in the median eminence and on plasma prolactin levels showed that both dopamine turnover in the median eminence and prolactin levels are significantly increased 20 h after a single i.p, injection of haloperidol. Further, hypophysectomy prevents haloperidol-induced increase in dopamine turnover in the median eminence. Moreover, a marked increase in dopamine turnover in the median eminence was found 1, 5 and 10 weeks after chronic administration of haloperidol(about 1mg/kg/day). Haloperidol administration for a week caused a significant elevation of plasma prolactin levels. Our histochemical data suggests that tolerance does not develop to the effect of haloperidol-induced prolactin on dopamine turnover in rat median eminence.