Large-conductance Ca2+-activated K+ channel involvement in suppression of cerebral ischemia/reperfusion injury after electroacupuncture atShuigou (GV26) acupoint in rats

Excess activation and expression of large-conductance Ca2+-activated K+ channels (BKCa channels) may be an important mechanism for delayed neuronal death after cerebral ischemia/reperfusion injury. Electroacupuncture can regulate BKCa channels after cerebral ischemia/reperfusion injury, but the precise mechanism remains unclear. In this study, we established a rat model of cerebral ischemia/reperfusion injury. Model rats received electroacupuncture of 1 mA and 2 Hz atShuigou (GV26) for 10 minutes, once every 12 hours for a total of six times in 72 hours. We found that in cerebral ischemia/reperfusion injury rats, ischemic changes in the cerebral cortex were mitigated after electroacupuncture. Moreover, BKCa channel protein and mRNA expression were reduced in the cerebral cortex and neurological function noticeably improved. These changes did not occur after electroacupuncture at a non-acupoint (5 mm lateral to the left side of Shuigou). Thus, our ifndings indicate that electroacupuncture atShuigou improves neurological function in rats following cerebral ischemia/reperfu-sion injury, and may be associated with down-regulation of BKCa channel protein and mRNA expression. Additionally, our results suggest that theShuigou acupoint has functional speciifcity.     

Bone marrow mesenchymal stem cell therapy in ischemic stroke：mechanisms of action and treatment optimization strategies

Animal and clinical studies have conifrmed the therapeutic effect of bone marrow mesenchymal stem cells on cerebral ischemia, but their mechanisms of action remain poorly understood. Here, we summarize the transplantation approaches, directional migration, differentiation, replacement, neural circuit reconstruction, angiogenesis, neurotrophic factor secretion, apoptosis, immunomodulation, multiple mechanisms of action, and optimization strategies for bone marrow mesenchymal stem cells in the treatment of ischemic stroke. We also explore the safety of bone marrow mesenchymal stem cell transplantation and conclude that bone marrow mesenchymal stem cell transplantation is an important direction for future treatment of cerebral ischemia. Determining the optimal timing and dose for the transplantation are important directions for future research.     

Electroacupuncture at Dazhui(GV14) and Mingmen(GV4) protects against spinal cord injury:the role of the Wnt/β-catenin signaling pathway

Electroacupuncture at Dazhui(GV14) and Mingmen(GV4) on the Governor Vessel has been shown to exhibit curative effects on spinal cord injury; however, the underlying mechanism remains poorly understood. In this study, we established rat models of spinal cord injury using a modified Allen's weight-drop method. Ninety-nine male Sprague-Dawley rats were randomly divided into three equal groups: sham(only laminectomy), SCI(induction of spinal cord injury at T10), and EA(induction of spinal cord injury at T10 and electroacupuncture intervention at GV14 and GV4 for 20 minutes once a day). Rats in the SCI and EA groups were further randomly divided into the following subgroups: 1-day(n = 11), 7-day(n = 11), and 14-day(n = 11). At 1, 7, and 14 days after electroacupuncture treatment, the Basso, Beattie and Bresnahan locomotor rating scale showed obvious improvement in rat hind limb locomotor function, hematoxylin-eosin staining showed that the histological change of injured spinal cord tissue was obviously alleviated, and immunohistochemistry and western blot analysis showed that Wnt1, Wnt3 a, β-catenin immunoreactivity and protein expression in the injured spinal cord tissue were greatly increased compared with the sham and SCI groups. These findings suggest that electroacupuncture at GV14 and GV4 upregulates Wnt1, Wnt3 a, and β-catenin expression in the Wnt/β-catenin signaling pathway, exhibiting neuroprotective effects against spinal cord injury.     

Transcutaneous electrical acupoint stimulation as an adjunct therapy for obsessive-compulsive disorder: A randomized controlled study

BackgroundTranscutaneous electrical acupoint stimulation (TEAS) is thought to have potential to treat obsessive-compulsive disorder (OCD).ObjectiveThe purpose of this study was to determine whether adding TEAS to cognitive behavioral therapy (CBT) and clomipramine would improve the efficacy of these conventional treatments in OCD.MethodsIn this randomized controlled trial, 360 OCD patients were assigned to receive TEAS combined with CBT plus clomipramine (Group A, n = 120), TEAS combined with CBT plus placebo (Group B, n = 120), and simulated (placebo) TEAS combined with CBT plus clomipramine (Group C, n = 120) for 12 weeks. The primary outcome was measured using the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS).ResultsOCD symptoms in all patients reduced over time, however Groups A and B had a significantly greater reduction in Y-BOCS total score and the subscale for obsession and compulsion between week 2 and week 12 compared to Group C. Groups A and B had similar scores on these measures. Both groups had significantly higher rates of clinical response than Group C (88.3% and 81.7% vs. 67.5%, respectively, p < 0.001); and higher rates of remission (30.0% and 22.5% vs. 9.2%, respectively, p < 0.001). Group B experienced fewer adverse events than the other two groups.ConclusionsTEAS enhances the efficacy of conventional OCD interventions and avoids the adverse effects associated with conventional pharmacological treatment. It can be considered as an effective adjunct intervention for OCD.     

不同领域现实世界临床研究证据转化的应用策略

参考已发布的政策法规指导意见，通过文献检索现实世界研究相关的专家共识指南，总结国内外现实世界临床研究不同领域的研究现况，归纳不同领域现实世界临床研究证据转化的观点，结合典型案例，为现实世界数据转化为现实世界证据的应用提供策略支持。     

点滴式保留灌肠法的临床应用研究

目的探讨点滴式保留灌肠法在临床应用的护理效果。方法将60例需保留灌肠患者随机分为实验组和对照组各30例。对照组采用传统保留灌肠方法,实验组采用点滴式保留灌肠法,观察2组患者灌肠液保留时间、灌肠液是否外溢、临床疗效及灌肠过程中患者的满意度和护士接受程度。结果与对照组比较,实验组灌肠液保留时间长(P<0.01)、灌肠液外溢明显减少(P<0.01)、患者满意度和护士接受程度显著优于对照组(P<0.01)。结论点滴保留灌肠法可以提高灌肠效果,减轻患者灌肠中的不适,减少药液外溢,延长药物在肠内保留时间,提高治疗护理效果,具有较好的临床推广价值。     

结肠透析的临床应用

介绍了结肠透析的原理、操作方法、临床应用、存在的问题、展望。     

VersaTREK全自动血培养仪的临床应用及评价

目的 评价VersaTREK240-4全自动血培养仪的临床应用情况.方法 采用回顾性分析,对VersaTREK240-4全自动血培养仪检测930例标本,检出阳性的时间、细菌种类及阳性率进行评估.结果 VersaTREK240-4最短检出时间4 h,最长52 h,12 h以内阳性者为21.9%,24 h以内阳性者为68.3%,48 h以内阳性者90.2%,72 h以内阳性者100%,细菌种类31种,阳性率15.4%.结论 VersaTREK240-4无论从出现阳性的时间、检出细菌种类包括营养条件高的苛养菌阳性率均明显高于本室往年手工的结果,而且操作简便、结果快速、准确.     

亚低温在重型颅脑损伤中的应用研究

介绍了亚低温在重型颅脑损伤中的应用研究，详细阐述了亚低温治疗重型颅脑损伤的基础研究、临床应用及护理要点。强调治疗期间要加强监护。     

前S1抗原作为乙肝病毒复制指标的临床应用价值

目的观察前S1抗原(PreS1Ag)作为乙肝病毒复制指标的临床应用价值。方法对462名慢性乙型肝炎患者用ELISA法检测PreS1Ag和血清HBV标志物(HBV-M),用荧光定量PCR法测定HBV-DNA含量。结果462例HBsAg阳性患者中PreS1Ag阳性304人,阳性率65.8%,显著高于HBeAg阳性率(34%)(P<0.01)。HBsAg、HBeAg、HBcAb阳性组PreS1Ag阳性率为79.1%,HBsAg、HBeAb、HBcAb阳性组PreS1Ag阳性率为44.1%,两组差异有显著性(P<0.01)。PreS1Ag阳性率与HBV-DNA阳性率高度符合,阳性符合率达80%。结论前S1抗原能够敏感地反映乙型肝炎病毒复制情况,尤其可以反映HBeAg阴性患者是否有病毒复制。是对乙肝病毒标志物的有益补充,可作为临床常规检测指标。