Effect of kappa-opioid receptor agonists on morphine analgesia in morphine-naive and morphine-tolerant rats.
Effect of kappa-opioid receptor agonists on morphine analgesia in morphine-naive and morphine-tolerant rats.
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kappa-阿片受体激动剂对吗啡首次使用和吗啡耐受大鼠吗啡镇痛的影响。
DOI:
10.1016/0014-2999(88)90327-5
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发表时间:
1988
影响因子:
5
通讯作者:
Bhargava,HN
中科院分区:
文献类型:
--
作者:
Ramarao,P;JablonskiJr,HI;Rehder,KR;Bhargava,HN
The effect of i.p. administration of κ-opioid receptor agonists, bremazocine, tifluadom and U-50,488H on morphine (8 mg/kg i.p.)-induced analgesia in morphine-naive and morphine tolerant male Sprague-Dawley rats was determined using the tail-flick test. The tolerance to morphine in the rats was induced by s.c., implantation of six morphine pellets during a 7-day period. Implantation of morphine pellets resulted in the development of tolerance as evidenced by the decrease in the analgesic response to morphine when compared to placebo pellets implanted rats. Bremazocine (0.3, 1.0 and 3.0 mg/kg) and U-50,488H (16 mg/kg) antagonized morphine-induced analgesia in morphine-naive rats while tifluadom (8 and 16 mg/kg) potentiated the effect. In morphine-tolerant rats, bremazocine (3 mg/kg) and U-50,488H (16 mg/kg) potentiated morphine-induced analgesia. Tifluadom at any of the doses had no effect on morphine-induced a analgesia in morphine-tolerant rats. These results provide evidence that different κ-opioid agonists modify morphine-induced analgesia differentially in morphine-naive and morphine-tolerant rats.
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影响因子:
5
作者:
H. Ureta;L. López;A. Pérez;J. Huidobro
通讯作者:
J. Huidobro
DOI:
10.1016/0306-3623(87)90071-1
发表时间:
1987
期刊:
General pharmacology
影响因子:
--
作者:
H. Bhargava;M. Bansinath;S. Das;G. Matwyshyn
通讯作者:
H. Bhargava;M. Bansinath;S. Das;G. Matwyshyn
DOI:
--
发表时间:
1981-08
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
H. Bhargava
通讯作者:
H. Bhargava
影响因子:
3.3
作者:
H. Bhargava
通讯作者:
H. Bhargava
影响因子:
5
作者:
FRIEDMAN, HJ;JEN, MF;LOH, HH
通讯作者:
LOH, HH