Method: Thirty male SD rats were randomly assigned to five groups: saline control, 30min+saline, 24h+saline,30min+diazepam, and 24h+diazepam.

• 研究方法：雄性SD大鼠随机分为5组，每组6只。 分对照组、30min组、24h组、30min+地西泮组、24h+地西泮组。