Effect of Electroacupuncture on Chronic Visceral Pain and Involvement of Spinal NMDA Receptor in IBS Rats

Objective： To clarify effect of electroacupuncture （EA） on relieving chronic visceral pain and the underlying neurobiological mechanism for such an effect, we observed the effect of EA on the Irritable bowel syndrome （IBS） rat and then examined spinal expression of N-methyl-D-aspartate （NMDA） receptor-1 in rats. Methods： Daily mechanical colon distention was performed on male Sprague-Dawley neonatal rats to produce IBS model. EA was applied at acupoints of Zusanli （ST 36） and Shangjuxu （ST 37） in each hind leg. Abdominal withdrawal reflex （AWR） assessment or rectus abdominis electromyograms （AEMG） recordings were then performed after EA treatment. The mRNA expression of the NMDA subtype of glutamate receptors in the spinal dorsal horn （L4-5） before and after EA was investigated by RT-PCR analysis in IBS rats. Results： The results demonstrated that EA could significantly decreased both AWR scores from behavioral test and AEMG discharges from electrophysiological recording in IBS model rats elicited by colorectal distension （CRY）） stimuli with strengths of 20, 40, 60 and 80 mmHg, respectively （P〈0.05）. Meanwhile there was a significant decrease in mRNA expression of NMDA receptor-1 in the spinal dorsal horn of IBS rats treated by EA （P〈0.05）, but no such effect was observed in IBS rats treated by sham EA （inserting needles without electrical stimulation）. Conclusion： These results indicate that EA can relieve chronic visceral hyperalgesia in IBS rats and this effect might be correlated with the down-regulation of NMDA receptor-1 in the dorsal horn of the spinal cord.     

中青年男性睡眠呼吸暂停低通气综合征患者警觉性和任务处理速度损害状况及其相关因素分析

目的探讨中青年男性睡眠呼吸暂停低通气综合征(OSAHS)患者早期警觉性及任务处理速度等认知领域的损害状况, 并进一步分析其相关因素。方法前瞻性纳入2020年7月至2021年9月在苏州大学附属第二医院睡眠中心行多导睡眠监测(PSG)的打鼾患者251例, 年龄(38.9±7.6)岁(18～59岁), 收集患者一般资料、Epworth嗜睡量表(ESS)、PSG参数, 进行认知功能测试。采用蒙特利尔认知评估量表(MoCA)、简易精神状态量表(MMSE)及计算机化认知测试软件(CANTAB)评估OSAHS患者多维度的认知功能, 包括运动筛查任务(MOT)反应时间评估警觉性, 图形视觉记忆(PRM)、空间广度(SSP)、空间工作记忆(SWM)反应时间评估任务处理速度。根据呼吸暂停低通气指数(AHI)三分位数将所有患者分为3组:AHI<15次/h(Q1组)79例, 15次/h≤AHI<45次/h(Q2组)88例, AHI≥45次/h(Q3 组)84例, 比较3组一般资料、ESS、PSG参数、认知不同领域损伤的差异, 并采用多重线性回归分析探讨认知损害的相关因素。结果 3组年龄、受教育年限...