帕罗西汀对Sprague—Dawley大鼠睡眠呼吸暂停的影响

目的 研究选择性5-羟色胺再摄取抑制剂(SSRIs)帕罗西汀对SD大鼠睡眠呼吸暂停的影响.方法 30只成年雄性SD大鼠随机分为帕罗西汀治疗组及对照组,每组15只,分别给予腹腔注射帕罗西汀(10 mg·kg-1·d-1)及灭菌蒸馏水(2 mL·kg-1·d-1)共7 d.给药前后分别进行睡眠监测,观察睡眠呼吸暂停指数(AI)及睡眠结构的变化.结果 帕罗西汀治疗组AI由(12.4±3.7)次/h降至(7.4±2.2)次/h(P=0.000),非快动眼睡眠(NREM)期叹息后呼吸暂停指数(PSAI)及自发呼吸暂停指数(SPAI)均有显著性下降(P=0.000,0.021),快动眼睡眠(REM)期呼吸暂停指数的下降无统计学意义.给予帕罗西汀后REM睡眠由8.6%降至8.0%(P=0.013),入睡潜伏时间由(20.7±9.1)min增至(30.0±15.7)min(P=0.038),REM潜伏期时间由(54.1±48.4)min增至(110.9±43.4)min(P=0.001).对照组上述指标的变化均无统计学意义(P均>0.05).结论 帕罗西汀可改善SD大鼠的睡眠呼吸暂停指数(AI)及NREM期PSAI和SPAI,对睡眠结构的影响表现为抑制REM睡眠并延长人睡潜伏期.

Effect of Paroxetine on Sleep Apneas in Sprague-Dawley Rats

Objective To evaluate the effects of selective serotonin reuptake inhibitors (SSRIs) on sleep apneas in Sprague-Dawley (SD) rats.Methods Thirty adult male SD rats were randomly divided into two groups (15 rats in each group).The treatment group and the control group were injected intraperitoneally with paroxetine (10 mg · kg-1·d-1) and sterile distilled water (2 mL · kg-1 · d-1) for 7 days respectively.Parameters about sleep apnea and sleep structure were measured before and after the treatment.Results In the treatment group, there was a significant reduction of apnea index (AI) from (12.4±3.7) times/hour to (7.4±2.2) tmes/hour (P = 0.000).Both post sigh apnea index (PSAI) and spontaneous apnea index (SPAI) were decreased significantly (P = 0.000 and 0.021 respectively) in non-rapid eye movement (NREM) sleep, but not in REM sleep.REM sleep was reduced from 8.6% to 8.0% (P = 0.013) and its latency was increased from (54.1±48.4) rain to (110.9±43.4) min (P = 0.001) in the treatment group,as well as the sleep-onset latency [from (20.7±9.1) rain to (30.0±15.7) rain, P = 0.038].Conclusion Paroxetine can reduce sleep apneas in SD rats during NREM sleep.Its effects on sleep structure include reducing REM time,increasing REM latency and sleep-onset latency.