JAK2/STAT3信号通路介导灯盏花乙素抗人心脏微血管内皮细胞缺氧-复氧损伤

Objective: To investigate the antagonistic cell injury effect and molecular mechanism of scutellarin(SCU)in hypoxia reoxygenation(HR) treated human cardiac microvascular endothelial cells(HCMECs).Methods: The method of 12 h hypoxia following by 12 h reoxygenation was used to culture HCMECs in vitro to built cell injury model. The groups were divided into control group, model(HR) group, and HR + SCU(0.1 μmol/L, 1 μmol/L, and 10 μmol/L) group. The cell viability was determined by MTT, and oxidative stress was detected by malondialdehyde(MDA) levels by biochemical assay kit. Protein expression of JAK2/p-JAK2 and STAT3/p-STAT3 were evaluated by Western blot.Results: The results of MTT and MDA showed that HR decreased the cell viability(P 0.05) and increased MDA level significantly(P 0.05), SCU played a contrary role in these processes. Western blot analysis indicates that, the expression of JAK2 and p-JAK2, STAT3, and p-STAT3 were increased in model group when compared with control group(P 0.05); Compared with model group, their expression were reduced by SCU(P 0.05).Conclusion: SCU took a protective effect on HR-treated HCMECs, and the molecular mechanism may be associated with the inhibition of JAK2/STAT3 signal transduction pathway.     

Collagen derived species-specific peptides for distinguishing donkey-hide gelatin (Asini Corii Colla)

Objective: As an important food therapy product with traditional Chinese medicine (TCM) applications, donkey-hide gelatin (Asini Corii Colla, ACC) has been used for thousands of years. However, till now no effective strategy had been proposed to distinguish ACC from other animal hide gelatins, especially closely related horse- and mule-hide gelatins, which was an embarrassment of ACC quality control. Methods: Combined mass spectrometry and bioinformatic methods have been applied to identify and verify two ACC-specific peptides (Pep-1 and Pep-2) capable of distinguishing ACC from other closely related animal gelatins with high selectivity. Results: It confirmed that these two peptides could be not only used for distinguishing ACC from highly homologous horse-hide and mule-hide gelatins as well as other animal hide gelatins. Conclusion: The present study provides a simple method for species-specific peptides discovery, which can be used for assessing the quality of animal gelatin products, and ensure they are authenticable and traceable.     

人参皂苷Rg1对大脑皮质神经细胞生物膜的影响

目的:研究人参皂苷Rg1对原代培养正常大鼠大脑皮质神经细胞生物膜的影响。方法:采用细胞培养技术,运用比色法、硫代巴比妥酸法、黄嘌呤氧化酶法(羟胺法)和微量酶标法测定人参皂苷Rg1对细胞内ACP活力、MDA含量、SOD活力及LDH释放量的影响。结果:1mg/ml、2 mg/ml及4 mg/ml人参皂苷Rg1作用30min可不同程度增加正常培养神经细胞的LDH释放量和细胞内SOD活力,降低细胞内ACP活力及MDA含量。结论:1mg/ml、2 mg/ml及4 mg/ml人参皂苷Rg1作用30min对正常培养大脑皮质神经细胞生物膜具有显著影响,其中对溶酶体膜有保护作用,对生物膜的脂质过氧化反应有抑制作用,能减轻自由基对生物膜的攻击及损伤,但对细胞膜可能有一定的损伤作用。     

α-细辛醚储库型贴片研究

目的：制备α-细辛醚储库型贴片,考察其体外释药特性和离体皮肤经皮渗透性,筛选有效的透皮吸收促进剂,提高α-细辛醚的透皮吸收速率。方法：以1％的HPMC的醇性溶液为储库介质,以EVA膜为控释膜,制备α-细辛醚的储库型透皮贴片。用改良Franz扩散池进行人离体皮肤渗透实验,筛选透皮吸收促进剂,用HPLC测定α-细辛醚的含量并计算其透皮速率。结果：α-细辛醚的释放速率接近零级。30％乙醇和1％肉豆蔻酸异丙酯协同对α-细辛醚贴片的促渗效果最佳,透皮速率达到(20.67±1.33)μg·cm-2·h^-1。结论：含乙醇和肉豆蔻酸异丙酯的α-细辛醚储库型贴片有较好的经皮渗透速率,可满足临床治疗要求。     

针刺对围绝经期大鼠卵巢颗粒细胞Fas、Bcl-2 mRNA表达的影响

目的从细胞凋亡角度研究针刺治疗围绝经期综合征的作用机制。方法将围绝经期大鼠随机分为围绝经期组、针刺组和药物组,并设青年对照组。围绝经期组大鼠不治疗,作为空白对照;针刺组大鼠针刺肾俞、足三里、三阴交治疗;药物组大鼠采用更年安药物治疗;青年对照组大鼠不治疗。应用原位杂交法检测卵巢颗粒细胞Fas、Bcl-2 mRNA表达,并进行图像分析。结果与青年对照组比较,围绝经期组大鼠卵巢颗粒细胞Fas mRNA表达明显升高(P<0.01),Bcl-2 mRNA表达明显降低(P<0.01);针刺治疗后围绝经期大鼠卵巢颗粒细胞Fas mRNA表达明显降低(P<0.01),Bcl-2 mRNA表达明显提高(P<0.01)。结论针刺能够下调围绝经期大鼠卵巢颗粒细胞Fas mRNA表达,上调Bcl-2 mRNA表达。     

针刺治疗肝癌肝动脉化疗栓塞后综合征的疗效观察

目的 :探讨针刺法治疗肝癌肝动脉化疗栓塞后综合征的临床疗效。方法 :采用针刺内关、足三里等穴位治疗肝癌肝动脉化疗栓塞后综合征 36例 ,设西药恩丹西酮等为对照组 ,观察两组的临床疗效。结果 :治疗组有效率为 97 2 % ,对照组有效率为 95 2 % ,两组有效率之间差异无显著性意义 (P >0 .0 5 ) ;但两组临床显效率之间差异有显著性意义 (P <0 .0 5 )。结论 :治疗组临床显效率优于对照组 ,且见效快 ,无毒副作用     

中西医结合治疗216例哮喘儿童的临床效果与生活质量评价

目的对中西医结合治疗支气管哮喘（简称哮喘）患儿临床疗效与生活质量进行评价,并以单纯西医治疗为对照,探讨哮喘中西医结合治疗的优势。方法在GINA方案的基础上将444例哮喘患儿随机分为观察组和对照组,观察组加用中药汤剂及穴位贴敷,总疗程2年,观察两组治疗前后临床疗效指标及生活质量变化。结果在改善肺功能、减少呼吸道感染次数方面,两组比较差异有统计学意义（P〈0．01）,观察组优于对照组。观察组在住院率、急诊率、缺课率（节）、心理障碍率、运动受限率等方面优于对照组,P〈0．01,提高哮喘患儿生活质量方面优于对照组。结论中西医结合治疗小儿哮喘能显著改善哮喘患儿临床症状及肺功能,具有较好的远期疗效,并能显著提高哮喘患儿的生活质量。     

五运六气理论概念体系与当代研究概述

五运六气理论是中医理论的重要内容之一，集中反映了中医学的天人相应和审机辨治观念，通过独具特色的概念体系细致地阐释了其理论原理与运用法则，推动了中医学理论与临床的发展。当代以来，在国内医学专业期刊上发表的相关论文约500篇，相关专业论著也时有面世，研究涉及五运六气理论的理论阐释、临床应用及其科学性界定。通过对《素问》运气七篇的概念梳理，提出包括核心概念、基本概念、衍生概念及关联概念的五运六气理论概念体系。     

基于转录组测序的山茱萸次生代谢生物合成相关基因的挖掘

为探讨山茱萸中环烯醚萜等次生代谢产物合成的遗传基础,采用新一代高通量测序技术对其果实进行转录组测序,共获得得96 032条unigenes,平均长度590.53 bp;其中共有35 478条unigene能被NR,Swissprot,COG,GO,KOG,Pfam和KEGG等7个公共数据库注释。通过对注释所得的unigene进行KEGG代谢通路的分析发现,共有84个unigene与环烯醚萜类成分的生物合成有关;487条unigene参与山茱萸其他次生代谢相关物质代谢调控。研究发现,共有153条unigene参与山茱萸次生代谢产物的氧化/羟基化;72条unigene参与次生代谢产物的糖基化。该研究首次对山茱萸转录组进行了分析,并获得了山茱萸环烯醚萜类等次生代谢生物合成相关的候选基因,为山茱萸的分子生物学研究提供了丰富的数据资源,也为后续探讨候选基因的功能奠定了基础。