Abstract
The effects of some derivatives of homotaurine (3 APS), the well known GABA agonist, were tested on the voluntary intake of ethanol by rats. Spontaneously ethanol drinking rats (DR) were selected and had a constant voluntary intake of ethanol by rats. Spontaneously ethanol drinking rats (DR) were selected and had a constant voluntary intake of a 12% ethanol solution (VIE) during 14 days (about 5 g/kg body weight daily). Calcium acetylhomotaurine (0.26 and 0.52 mmol/kg daily IP) significantly reduced VIE and this was inhibited by the GABA antagonist bicuculline (2 mg/kg IP). The conditioned aversion test to saccharin was negative. Bicuculline alone did not affect VIE. Other homotaurine (3-APS) derivatives: sodium acetyl homotaurine (Na AOTA), homotaurine (OTA), sodium acetyltaurine (Na A TA) and calcium chloride (CaCl2) did not affect VIE. These data suggest that the gabaergic system could be implicated in VIE. MERAM Lab. patent.
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