Publication Title: 
Alcohol (Fayetteville, N.Y.)

The effect of two Ca2+ channel inhibitors (CCIs) on ethanol-induced hypothermia and hypnosis, on tolerance formation to both effects, and on audiogenic convulsions during ethanol withdrawal was studied in rats. Nifedipine, 2 and 5 mg/kg IP, significantly augmented the hypnotic action of ethanol without affecting hypothermia. Diltiazem failed to influence either effect of the toxin. Rectal temperature did not change in ethanol-naive rats after acute injection of diltiazem or nifedipine.

Pucilowski, O.
Krzascik, P.
Trzaskowska, E.
Kostowski, W.
Publication Title: 
Journal of Neural Transmission (Vienna, Austria: 1996)

In order to elucidate the mechanism(s) behind the interactions between barbiturates and Ca(2+) antagonists, the effects of three structurally diverse types of Ca(2+) antagonists combined or not with 5-HT on pentobarbital-induced hypnosis in mice were investigated.

Zhao, X.
Cui, X.-Y.
Chu, Q.-P.
Chen, B.-Q.
Wang, X.-M.
Lin, Z.-B.
Li, X.-J.
Ku, B.-S.
Zhang, Y.-H.
Publication Title: 

To investigate the mechanism by which L-type Ca+ channel blockers exerted potentiating effects on pentobarbital-induced hypnosis, the present study was undertaken to determine if the interaction of diltiazem and serotonergic system influences the architecture of pentobarbital sleep in rats and examined c-Fos expression in the ventrolateral preoptic nucleus (VLPO) and the tuberomammillary nucleus (TMN). The polysomnogram consisting of EEG and EMG was recorded for analyzing sleep architecture.

Zhao, Xin
Cui, Xiang-Yu
Wang, Li-En
Zhang, Yong-He
Publication Title: 
Pharmacology, Biochemistry, and Behavior

It has been reported that the sedative component of pentobarbital is mediated by GABA receptors in an endogenous sleep pathway and the ventrolateral preoptic area (VLPO)-tuberomammillary nucleus (TMN) or VLPO-dorsal raphe nucleus (DRN) neural circuit is important in the sedative response to pentobarbital. Our previous findings indicated that the VLPO-TMN neuronal circuit may play crucial part in the augmentative effect of diltiazem on pentobarbital sleep and the serotonergic system may be involved.

Cui, Su-Ying
Cui, Xiang-Yu
Zhang, Juan
Wang, Zi-Jun
Yu, Bin
Sheng, Zhao-Fu
Zhang, Xue-Qiong
Shi, Xiao-Lei
Zhang, Yong-He
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