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Effects of Hachimi-jio-gan in aged rats
1Second Department of Medical Biochemistry, School of Medicine, Ehime University, Japan.
Objective:
To evaluate the effects of Hachimi-jio-gan, a traditional Japanese Kampo medication composed of eight medicinal herbs used for treating older people.
Subjects:
Sixteen laboratory-bred Fischer 344 rats
Design:
The rats were divided into two groups. One was the control group and the other was given chow containing 7% Hachimi-jio-gan powder for a period 110-120 weeks.
Outcome Measures:
The rats were assessed for wheel running and an inclined screen test from weeks 119-120; then laboratory and histologic examinations were performed.
Results:
The group receiving Hachimi-jio-gan was more active in spontaneous mobility during wheel running; they maintained a significantly higher angle of retaining posture than the control group on the inclined screen; there was no significant difference in laboratory and histologic findings.
Conclusions:
Aged rats that received Hachimi-jio-gan were more active and stronger than the control group rats. The findings suggest that Hachimi-jio-gan is a safe and effective Kampo prescription for aging rats.