INTRAPERITONEAL ADMINISTRATION OF RECOMBINANT HUMAN INTERLEUKIN-1-BETA INHIBITS OSMOTIC THIRST IN THE RAT

被引:27
作者
OSAKA, T [1 ]
KANNAN, H [1 ]
KAWANO, S [1 ]
UETA, Y [1 ]
YAMASHITA, H [1 ]
机构
[1] UNIV OCCUPAT & ENVIRONM HLTH,DEPT PHYSIOL,KITAKYUSHU,FUKUOKA 807,JAPAN
关键词
DRINKING BEHAVIOR; INTERLEUKIN-1-BETA; HYPERTONIC SALINE; INDOMETHACIN;
D O I
10.1016/0031-9384(92)90319-W
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Decrease in water intake after intraperitoneal injection of interleukin-1-beta (IL-1-beta) was studied in the rat. Administration of IL-1-beta at a dose of 20-mu-g/kg attenuated osmotic thirst induced by intraperitoneal injection of hypertonic saline, but did not affect hypovolemic thirst induced by subcutaneous injection of either polyethylene glycol or angiotensin II. Interleukin-1-beta also decreased spontaneous intake of water but not that of 1.8% saline. The results suggest that the decrease in water intake by IL-1-beta is caused, at least in part, by suppression of osmotic thirst but not by general suppression of behavior. The effects of IL-1-beta were not secondary responses accompanied by feeding behavior, since food supply was removed during the experiments. Pretreatment with indomethacin blocked the decrease in water intake by IL-1-beta, suggesting the involvement of production of prostaglandins.
引用
收藏
页码:1267 / 1270
页数:4
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