Sunday, April 13, 2008

The hepatic sympathetic nerve

Mortality in sympathectomised mice was significantly higher than that in sham operated mice following administration of Jo-2. This result was also supported by apoptosis data in which sympathectomised livers exhibited a significant elevation in the number of apoptotic hepatocytes and caspase-3 activity after Jo-2 treatment compared with sham operated livers. Moreover, pretreatment with norepinephrine dose dependently inhibited the hepatic sympathectomy induced increase in mortality after Jo-2 injection. Antiapoptotic protein levels of FLICE inhibitory protein, Bcl-xL, and Bcl-2 in the liver were significantly lower in sympathectomised mice at one and two hours following Jo-2 treatment than in sham operated animals. In addition, interleukin 6 supplementation dose dependently suppressed the hepatic sympathectomy induced increase in mortality after Jo-2 treatment.

The hepatic sympathetic nerve plays a critical role in preventing Fas induced liver injury in mice

Y Chida1, N Sudo1, A Takaki2, C Kubo1

1 Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
2 Department of Integrative Physiology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan

Dr Y Chida
Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan