铁皮石斛居群差异的研究ⅡISSR指纹标记方法的建立与优化

目的:针对铁皮石斛ISSR的反应特点,建立稳定可靠的ISSR分子指纹标记反应体系,为进一步研究铁皮石斛的居群差异奠定基础。方法:通过筛选引物并设定影响铁皮石斛ISSR反应的诸因子的不同浓度,检测IS-SR不同反应体系的扩增效果;通过分析非特异性条带的产生原因并进行条件优化,建立铁皮石斛ISSR稳定可靠的反应体系。结果与结论:首次建立了可用于铁皮石斛ISSR-PCR分析的最适宜的反应体系:25μL PCR反应体系中,10×Taq酶配套缓冲液,1.5 U Taq DNA聚合酶,1.2～1.8 mmol.L^-1MgCl₂,80μmol.L^-1dNTP,0.2μmol.L^-1引物,DNA模板约20 ng,退火温度52～60℃;实验表明:Taq酶质量、DNA模板品质、退火温度等对ISSR反应结果具有较大影响。所建立的铁皮石斛ISSR反应体系具有标记位点清晰、反应系统稳定、检测多态性能力较强、重复性好等特点,可以较好地应用于铁皮石斛的居群鉴别及居群分子生态的研究。     

穴位注射结合针刺治疗周围性面瘫疗效分析

目的:探讨穴位注射结合针刺治疗静止期周围性面瘫疗效及机制.方法:将90例患者随机分为治疗组、对照Ⅰ组、对照Ⅱ组各30例,于治疗前后分别观察临床症状、体征和甲襞微循环.结果:治疗组治愈率63.3%,对照Ⅰ组46.7%,对照Ⅱ组40.0%.治疗组疗效优于两对照组(P＜0.05).治疗组在改善微循环上明显优于对照组(P＜0.01).结论:穴位注射结合针刺能改善机体微循环状态,且疗效佳.     

中医自我发展的哲学研究初探

中医与西医各有自身的思想轨道,所以在各自"自我"的视角上指责对方不可取;双方在哲学基础、身体观和方法论上自成体系,以现代西医理论解释中医只会使中医丧失了自我解释的能力。中西医两者沟通的渠道是实践的效果而非理论的解释。唯有保持自己的理论解释系统,中医的发展才有可能。     

葎草抗结核分枝杆菌研究

目的 研究葎草提取物抗结核菌活性及有效部位.方法 以体外抑菌实验筛选葎草抗结核活性部位,采用试管倍比稀释法测定律草提取物最低抑菌浓度(MIC),评价其体外抗菌活性.结果 葎草的正丁醇萃取部位对结核分枝杆菌标准株H37 RV及临床分离的敏感菌株具有较明显的抗作用,粗提物的MIC为125 μg·ml-1,高浓度1 mg·ml-1时有杀灭作用.结论 葎草提取物对结核杆菌具有明显的抗菌活性,有进一步研究开发的价值.     

艾儒棣教授治疗气阴两虚证狼疮性肾炎经验

艾儒棣教授临床辨治狼疮性肾炎,认为病机乃肾阴虚为本,瘀毒为标;强调缓解期对气阴两虚证的治疗,蛋白尿的处理,重视预后调摄。     

“肾藏精”与干细胞及其微环境及NEI网络动态平衡关系

国家重点基础研究发展计划项目"基于‘肾藏精’脏象理论的基础研究"提出科学假说:"肾藏精"主要或部分体现为干细胞及微环境的调和状态,体现为干细胞、微环境和NEI网络的动态平衡。综合文献及实验研究成果表明,在整体层次,"肾藏精"主要体现为NEI网络的调控作用;在细胞及分子层次,"肾藏精"主要或部分体现为干细胞及微环境的调和状态。"肾藏精"与在NEI网络整体调控下的内源性干细胞"沉默"休眠、"唤醒"激活、增殖分化以及多种内在机制和微环境因素密切相关。干细胞既可以定向分化为神经细胞、胰岛β细胞、免疫细胞等,又具有神经-内分泌-免疫网络作用的分子基础。"从肾论治"的作用机制之一是动员"肾藏精"的生理功能而激活内源性干细胞和发挥微环境作用,同时调控NEI网络动态平衡。继续深化相关研究,可能在肾藏象理论基础研究方面取得重大突破,并在临床"从肾论治"相关疾病辨证论治规律方面具有指导作用和应用价值。     

Applying tuina to exterior-interiorly connected meridians for post-stroke upper limb spasticity

Objective

To observe the effect of applying tuina to exterior-interiorly connected meridians for post-stroke upper limb spasticity.

Methods

A total of 150 patients with post-stroke upper limb spasticity were randomly allocated into a treatment group (n=75) and a control group (n=75) by the random number table. Patients in the treatment group received tuina on exterior-interiorly connected meridians, whereas patients in the control group received standard rehabilitation therapy. The therapeutic efficacies in both groups were observed after 3 weeks of treatment.

Results

The total effective rate in the treatment group was 89.3%, versus 61.3% in the control group, showing a statistically significant difference (P<0.05). After the treatment, the muscle tones by the modified Ashworth scale (MAS) were significantly improved in both groups (both P<0.05); and the improvement of muscle tone was more significant in the treatment group than that in the control group (P<0.05).

Conclusion

Applying tuina to exterior-interiorly connected meridians can obtain an exact efficacy for post-stroke upper limb spasticity.

     

头针结合Bobath 技术治疗脑出血偏瘫临床研究

目的:观察头针结合Bobath技术治疗脑出血偏瘫的临床疗效。方法:选取74例脑出血偏瘫患者,按随机数字表法分为研究组和对照组各37例。对照组采用Bobath技术治疗,研究组在对照组基础上加用头针治疗。比较2组临床疗效及美国国立卫生研究院卒中量表(NIHSS)评分。结果:研究组总有效率为89.19%,高于对照组72.97%,差异有统计学意义(P0.05)。治疗前,2组NIHSS评分比较,差异无统计学意义(P0.05)。治疗1个疗程、2个疗程、3个疗程后,2组NIHSS评分逐渐降低,研究组NIHSS评分均低于同时间点对照组,差异均有统计学意义(P0.05)。结论:头针结合Bobath技术治疗脑出血偏瘫临床疗效显著,能够改善患者神经功能。     

Regulation of Eclipta prostrata L. components on cigarette smoking‐induced autophagy of bronchial epithelial cells via keap1‐Nrf2 pathway

Cigarette smoking extract (CSE)‐induced autophagic injury has been regarded as an important contributor to the pathogenesis of lung cancer. We previously found that Eclipta prostrata L. component (CCE) reduced CSE‐induced bronchial epithelial cells damage. However, the mechanism remains unknown. Human normal bronchial epithelial cells (NHBE) were exposed to CSE to establish stress model. Nrf2‐siRNA and Keap1‐siRNA transfection were performed. mRFP‐GFP‐LC3 dual fluorescence and transmission electron microscopy were used to observe the autophagic characteristics. CCE prevented CSE‐induced Nrf2 transfer into cytoplasm and up‐regulated Keap1 level of NHBE cells. Furthermore, CCE significantly increased p‐p16, p‐p21 and p‐p53 phosphorylation levels in Nrf2‐siRNA‐ or Keap1‐siRNA‐transfected cells. As demonstrated by transmission electron microscopy and mRFP‐GFP‐LC3 dual fluorescence assays, CCE mitigated autophagic injury, and also down‐regulated autophagy‐related Beclin‐1, LC3II/LC3I ratio, Atg5 and ATF4 levels. Our findings showed the attenuation of CCE on CSE‐induced NHBE cells injury was associated with Nrf‐2‐mediated oxidative signaling pathway.     

LC-MS/MS法测定人血浆中加巴喷丁的浓度及其药动学研究

建立液相色谱串联质谱(LC-MS/MS)法测定人血浆中加巴喷丁的浓度并将其应用于人体药动学研究。取血浆样品经甲醇沉淀蛋白后,以甲醇0.2%甲酸水溶液(80∶20)为流动相,用Inertsil ODS-3 C18柱(50 mm×2.1 mm ID,3μm)分离,采用电喷雾离子源,以多反应监测(MRM)方式进行正离子检测,定量分析的离子反应分别为m/z 172→m/z 154(加巴喷丁)和m/z 130→m/z 71(内标二甲双胍)。加巴喷丁线性范围为40.8～8.16×103 ng.mL 1,定量限为40.8 ng.mL 1,每个样品测试时间仅2.2 min,日内、日间精密度(RSD)均小于12%,准确度(RE)在±6.4%范围内。应用此法研究了20名健康志愿者单剂量口服加巴喷丁胶囊600 mg后的药动学特点。该方法快速、专属、灵敏、适用性强,可应用于加巴喷丁的人体药动学研究。