肉苁蓉炮制前后补肾壮阳作用的研究

肉苁蓉水煎物醇溶部分可显著增加去势幼龄大鼠的精囊前列腺重量；使小白鼠和大白鼠的睾丸、精囊前列腺增重；水煎物可提高小鼠腹腔巨噬细胞的吞噬功能。生品和炮制品无统计学差异。其小鼠口服最大耐受量为４０ｇ／ｋｇ。     

参苓白术颗粒联合思密达治疗小儿消化不良性腹泻临床研究

目的:观察参苓白术颗粒联合思密达对小儿消化不良性腹泻的临床效果。方法:将小儿消化不良性腹泻114例按照随机数字表法分为2组各57例,对照组给予思密达进行治疗,观察组在对照组基础上加入参苓白术颗粒,对比临床治疗效果。结果:对照组总有效率为75.44%,观察组为91.22%,2组比较,差异有统计学意义(P<0.05)。观察组平均停止腹痛、腹泻、腹胀以及大便性能恢复正常的时间较对照组短,差异有统计学意义(P<0.05)。治疗后9 d,2组炎症因子水平较前下降,且观察组低于对照组,差异有统计学意义(P<0.05)。2组不良反应发生情况比较,差异无统计学意义(P>0.05)。结论:针对小儿消化不良性腹泻采用参苓白术颗粒联合思密达治疗,临床症状缓解更快,可加速患儿恢复肠胃功能,有效减轻患者炎症反应,用药安全。     

First-Principles Computational Study of the Modification Mechanism of Graphene/Graphene Oxide on Hydroxyapatite

Due to its unique crystal structure and nano-properties, hydroxyapatite (HA) has become an important inorganic material with broad development prospects in electrical materials, for fire resistance and insulation, and in bone repair. However, its application is limited to some extent because of its low strength, brittleness and other shortcomings. Graphene (G) and its derivative graphene oxide (GO) are well known for their excellent mechanical properties, and are widely used to modify HA by domestic and foreign scholars, who expect to achieve better reinforcement and toughening effects. However, the enhancement mechanism has not been made clear. Accordingly, in this study, G and GO were selected to modify HA using the first-principles calculation method to explore the theory of interfacial bonding of composites and explain the microscopic mechanism of interfacial bonding. First-principles calculation is a powerful tool used to solve experimental and theoretical problems and predict the structure and properties of new materials with precise control at the atomic level. Therefore, the bonding behaviors of hydroxyapatite (100), (110) and (111) crystal planes with G or GO were comprehensively and systematically studied using first-principles calculation; this included analyses of the density of states and differential charge density, and calculations of interfacial adhesion work and elastic moduli. Compared to HA (100) and (111) crystal planes, HA (110) had the best bonding performance with G and with GO, as revealed by the calculation results. The composite material systems of HA (110)/G and HA (110)/GO had the smallest density of states at the Fermi level, the largest charge transfers of Ca atoms, the largest interfacial adhesion work and the most outstanding elastic moduli. These results provide a theoretical basis for the modification of HA to a certain extent, and are beneficial to the expansion of the scope of its application.     

苓桂术甘汤配伍机制及药效物质基础研究

目的：研究《伤寒论》名方苓桂术甘汤（茯苓，桂枝，白术，甘草）的配伍机制及药效物质基础。确定方中各药味的君臣佐使关系和质量控制指标。方法：采用正交试验设计对方中组成药味进行药味与药量同时加减拆方。选择小鼠常压耐缺氧，对抗氯仿所致小鼠心律失常和利尿三项药理指标对所得16个处方进行药理实验；采用方差分析，逐步回归分析（SREG）与典型相关分析（CCOR）将所得药理数据和组方药味及药理相关联，探讨复方苓桂术甘汤的配伍机制；同时对各处方进行HPLC色谱指纹图谱研究。将所得药理数据和各指纹峰的峰面积（即各化合物的含量）相关联，探讨复方苓桂术甘汤的药效物质基础。并确定其质量控制指标。结果：确定了方中以茯苓为君。以桂枝为臣，佐以白术，使以甘草的配伍关系，与对该复方中药的传统诠释相一致；通过回归分析和相关分析从50个色谱峰中选取17个作为药效物质基础，其中桂皮酸，甘草酸和去氢土莫酸被确定为质量控制指标。结论：本研究为探讨复方中药的药效物质基础提供了有意义的尝试。     

洛唑阴道泡腾片的研制

 目的 研制以洛美沙星和替硝唑为主药的复方阴道泡腾片并建立质量控制方法。方法 将洛美沙星、替硝唑和酸、碱组分分别制成干燥品,整粒、混合后压片。采用双波长法测定泡腾片中洛美沙星和替硝唑的含量。结果 本品在5 min内可完全崩解。体外释药试验表明,10 min内可释放60%以上的药物。结论 本品发泡迅速,药物释放快,无刺激性,稳定性良好。适用于阴道炎及子宫颈炎。     

安徽亳州板蓝根种质资源的调查研究

目的 :为制定板蓝根规范化种植的操作规程提供依据。方法 :进行安徽亳州板蓝根的种质资源调查和种子染色体的鉴定研究。结果 :安徽亳州板蓝根种质资源有四倍体菘蓝和二倍体菘蓝。结论 :确定二倍体菘蓝为板蓝根规范化种植的种质资源。     

丁香油β-环糊精包合前后化学成分的GC-MS分析

目的对β-环糊精包合前后的丁香油组分进行分析。方法采用GC-MS法对化学成分进行分离鉴定。DB-1毛细管气相色谱柱,程序升温:60℃(1min)10℃/min230℃(3min);分流进样,分流比:1∶50;进样口温度:230℃,MS检测。结果经GC-MS分析,包合前后丁香油主要成分基本一致,但各组成比例发生变化。结论β-环糊精对化合物的包合会使丁香油化学成分的比例在包合前后发生一定的变化。     

茶树油的提取工艺优化试验研究

目的:以茶树油提取率为考察指标,研究茶树油的提取工艺.方法:采用正交试验进行优选,气相色谱法测定4-羟基萜烯含量.结果:影响茶树油提取率的主要因素是提取时间,对茶树油的提取有显著影响;其次是加水量,对茶树油的提取有较大影响;浸泡时间的影响最小.各因素对4-羟基萜烯含量无影响.结论:最佳的提取工艺为浸泡时间2 h,提取时间6 h,加水800 ml.