STRAIN-DEPENDENT DIFFERENCES IN RESPONSIVENESS OF MICE TO NITROUS-OXIDE (N2O) ANTINOCICEPTION

被引:22
作者
QUOCK, RM [1 ]
MUELLER, JL [1 ]
VAUGHN, LK [1 ]
机构
[1] MARQUETTE UNIV, SCH DENT, DEPT BASIC SCI, MILWAUKEE, WI 53233 USA
关键词
N2O; ANTINOCICEPTION; OPIOID SYSTEM; INBRED AND OUTBRED MOUSE STRAINS;
D O I
10.1016/0006-8993(93)91017-M
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
N2O antinociception was assessed in eight inbred and two outbred mouse strains. Results indicated the following order of responsiveness among the 10 strains: A/J (most sensitive), C57BL/6ByJ, C57BL/6J, BALB/cByJ, C3H/HeJ, Swiss-Webster, CXBK/ByJ, ICR, CBA/J and DBA/2J (least sensitive). These results demonstrate significant strain-dependent differences in antinociceptive responsiveness to N2O. The weak antinociceptive response to N2O in the DBA/2J strain, which is sensitive to morphine and U-50,488H, indicates some underlying neurobiological difference in the DBA/2J mouse that imparts resistance to N2O. The responsiveness of CXBK/ByJ mice to N2O indicates that mu-opioid receptors may not play an important role in N2O antinociception in mice.
引用
收藏
页码:52 / 56
页数:5
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