1. Objective : To investigate whether the habenula takes part in the depressor effect of losartan.

2. The results indicate that nucleus accumbens and habenula are the two strategic sites for cerebral 5-HT to exert its analgesic effect.

3. ConclusionReduction of neurofibers in habenula perforata occurs earlier than that of the inner hair cells after carboplatin treatment.

4. The relationship of lateral habenula(LHb)and substantia nigra in the pain mechanism was investigated by extracellular recording.

5. Habenula has been regarded as the major link between forebrain structures and midbrain raphe nuclei.

6. Nucleus habenula is the axis of the descending pathway from limbic system to the brain stem.

7. Objective:To probe whether the NO in habenula is closely involved in the pathogenesis of stress induced hypertension.

8. ObjectiveTo quantitatively compare the cochlear hair cell loss with the nerve fiber loss in the habenula perforata in the early stage of carboplatin ototoxicity in chinchilla.