芪蓟肾康颗粒总多糖对大鼠肾小球系膜细胞IL-6和MCP-1的影响

目的:观察芪蓟肾康颗粒总多糖提取物对大鼠肾小球系膜细胞白介素-6(IL-6)、单核细胞趋化蛋白-1(MCP-1)表达的影响.探讨芪蓟肾康颗粒总多糖提取物防治肾小球硬化的作用机制.方法:应用血清药理学方法,制取芪蓟肾康颗粒总多糖高、低剂量组(生药:30,15 g·kg-1)的含药血清;用血管紧张素Ⅱ(AngⅡ)作为刺激因子,培养大鼠肾小球系膜细胞,使其发生增殖;用免疫酶联吸附法(ELISA法)检测系膜细胞IL-6,MCP-1蛋白表达的情况.结果:芪蓟肾康颗粒总多糖对IL-6有显著抑制作用,与AngⅡ组比较,差异显著(P＜0.01);芪蓟肾康颗粒总多糖对MCP-1有显著抑制作用,与AngⅡ组比较,差异显著(P＜0.01).结论:芪蓟肾康颗粒总多糖可能通过抑制IL-6,MCP-1的蛋白表达,抑制炎症反应,从而防治肾小球硬化.     

运脾消食方对厌食症儿童唾液淀粉酶活性、血红蛋白含量影响的研究

目的:观察运脾消食方对厌食症儿童唾液淀粉酶活性、血红蛋白含量的影响.方法:将98例患者随机分为两组,治疗组49例服用运脾消食方(由焦三仙、炒白术、法半夏、陈皮、鸡内金、使君子、三棱、胡黄连、佩兰等中药组成),4周为1个疗程,治疗2个疗程.对照组49例口服小儿健脾化积口服液,疗程同治疗组.对治疗前后患儿的主、次要症状进行分级量化并进行疗效评定,并观察治疗前后身高、体重、唾液淀粉酶活性、血红蛋白含量的变化.结果:总有效率治疗组为95.92％,对照组为77.55％,两组比较,运脾消食方组在总有效率、症状、体征、唾液淀粉酶活性、血红蛋白含量改善等方面均明显优于小儿健脾化积口服液组(P＜0.01或P＜0.05).结论:运脾消食方对改善小儿厌食症的症状、体征疗效显著,并能增强患儿唾液淀粉酶活性、增加血红蛋白含量.     

大黄与酒大黄配方颗粒红外光谱研究

目的:建立大黄与酒大黄配方颗粒的红外光谱快速鉴别方法,为中药炮制品配方颗粒在不具备饮片形态的情况下真伪鉴别提供示范性研究.方法:采用一维红外光谱及二阶导数光谱法分别对大黄与酒大黄配方颗粒进行红外光谱分析.结果:大黄与酒大黄配方颗粒的一维红外光谱基本相似,仅在1 447,1 367,1 146,1 079,925,576 cm-1附近吸收峰的位置、强度、形状上存在一定的差异;其二阶导数光谱在1 800～500 cm-1峰位置和峰强度的变化较明显.结论:红外光谱技术快速、准确、简便,可用于大黄与酒大黄配方颗粒的鉴别和质量控制.     

HPLC同时测定扶正固本颗粒中黄芩苷和淫羊藿苷

目的:建立扶正固本颗粒中黄芩苷和淫羊藿苷的含量测定方法.方法:采用HPLC法,以乙腈-0.2％磷酸溶液梯度洗脱,色谱柱为日旭AQ C18(4.6 mm×250 mm,5μm),流速1.0 mL· min-1,柱温25℃,检测波长270 nm.结果:黄芩苷在0.756～10.08 μg,淫羊藿苷在0.299～39.92 μg与峰面积呈良好线性关系,相关系数分别为1.000 0,0.999 6;方法平均回收率分别为101.40％(RSD 1.41％),101.02％(RSD 1.08％).结论:方法简便、准确、重复性好,可作为扶正固本颗粒质量控制方法.     

Oligomannose-coated liposome-entrapped dense granule protein 7 induces protective immune response to Neospora caninum in cattle

Neospora caninum is an intracellular protozoan parasite that causes abortion in cows. Vaccination is an important strategy for control of neosporosis, and a safe and effective vaccine suitable for cattle is required. Dense granule protein 7 of N. caninum (NcGRA7) is a secretory protein with high antigenicity in hosts. We demonstrated previously that NcGRA7 entrapped in liposomes coated with mannotriose (M3-NcGRA7) could induce a parasite-specific T-helper type 1 immune response and produce humoral antibodies that resulted in increased offspring survival and decreased infection in the brains of mice dams. In the present study, the efficacy of M3-NcGRA7 as a vaccine candidate against N. caninum has been evaluated in cattle (n = 12). Cattle were immunized with M3-NcGRA7 containing 50 μg (n = 4) or 200 μg NcGRA7 (n = 4) subcutaneously twice with a 4-week interval and all cattle including the non-immunized controls (n = 4) were inoculated with 10⁷ tachyzoites of Nc-1 strain 27 days after the second immunization and euthanized at 85–87 days post infection (dpi). In immunized cattle, NcGRA7-specific antibody production and IFN-γ production in PBMC was induced before challenge. At 3 dpi, body temperature and concentration of serum IFN-γ tended to be higher in control cattle than in the immunized cattle. Furthermore, the parasite load in the brain significantly decreased in cattle immunized with 50 μg M3-NcGRA7 compared with controls. These results suggest that M3-NcGRA7 can induce protective immune responses to N. caninum tachyzoites in cattle, which could lead to practical application of safe and effective subunit vaccines.     

解痉颗粒联合中药熏蒸对脑卒中痉挛性偏瘫肢体功能的影响

目的观察解痉颗粒合中药熏蒸对脑卒中痉挛性偏瘫肢体功能的疗效影响.方法将160例在我科住院或门诊的脑卒中患者按随机数字表法分为对照组与治疗组,各80例.两组患者均给予早期康复锻炼及脑卒中的常规治疗,对照组予巴氯芬治疗,治疗组予解痉颗粒合中药熏蒸治疗.结果治疗后1个月,治疗组总有效率83.7%,对照组总有效率72.5%,治疗组疗效优于对照组（P〈0.05）.治疗组患者对痉挛偏瘫肢体功能较对照组更为明显,差异有统计学意义（P〈0.05或P〈0.01）.结论解痉颗粒合中药熏蒸可显著提高脑卒中患者痉挛偏瘫肢体功能,效果优于巴氯芬.     

中药配方颗粒剂质量控制研究现状及展望

对中药配方颗粒剂质量控制的技术手段进行全面的评述,分析各种技术的优缺点、应用范围等特点.在现有研究成果的基础上,探讨配方颗粒剂质量控制标准化、现代化以及考察内容全面化的可能性.由于配方颗粒剂仍为中药材提取液所得制剂,有大量结构和活性相似的化合物.因此,本文重点论述如何采用各类仪器分析技术及前处理手段,提高质量标准研究和指纹图谱建立过程的确定性、针对性和全面性.另外,对于配方颗粒剂与传统中药方剂在药效学和药动学上的差异,相关研究领域一直存在较大空白,如何填补这些空白,也是本综述的意图之一.     

针刺联合稳心颗粒治疗阵发性房颤疗效观察

目的:观察针刺联合稳心颗粒治疗阵发性房颤(PAF)与单用稳心颗粒治疗本病的疗效差异.方法:选择在我院住院治疗的阵发性房颤患者60例,按照随机原则分为药物加针刺组和药物组,两组均给予稳心颗粒治疗,每次9 g,每日3次,4周为一疗程;药物加针刺组在给予稳心颗粒治疗的同时给予针刺治疗,选取双侧内关、神门、郄门穴,施以平补平泻手法,持续行针1 min,每15分钟行针1次,留针30 min.每日1次,连续针刺4周.治疗完成后评定两组治疗效果.结果:药物加针刺组显效18例,有效10例,无效2例,总有效率为93.3％;药物组显效15例,有效8例,无效7例,总有效率为76.7％,两组间疗效差异有统计学意义(P＜0.05).结论:针刺联合稳心颗粒治疗阵发性房颤疗效优于单用稳心颗粒治疗.     

Multifaceted Functions of Rab23 on Primary Cilium-Mediated and Hedgehog Signaling-Mediated Cerebellar Granule Cell Proliferation

Sonic hedgehog (Shh) signaling from the primary cilium drives cerebellar granule cell precursor (GCP) proliferation. Mutations of hedgehog (Hh) pathway repressors commonly cause medulloblastoma, the most prevalent and malignant childhood brain tumor that arises from aberrant GCP proliferation. We demonstrate that Nestin Cre-driven conditional knock-out (CKO) of a Shh pathway repressor-Rab23 in the mouse brain of both genders caused mis-patterning of cerebellar folia and elevated GCP proliferation during early development, but with no prevalent occurrence of medulloblastoma at adult stage. Strikingly, Rab23-depleted GCPs exhibited upregulated basal level of Shh pathway activities despite showing an abnormal ciliogenesis of primary cilia. In line with the compromised ciliation, Rab23-depleted GCPs were desensitized against Hh pathway activity stimulations by Shh ligand and Smoothened (Smo) agonist-SAG, and exhibited attenuated stimulation of Smo-localization on the primary cilium in response to SAG. These results implicate multidimensional actions of Rab23 on Hh signaling cascade. Rab23 represses the basal level of Shh signaling, while facilitating primary cilium-dependent extrinsic Shh signaling activation. Collectively, our findings unravel instrumental roles of Rab23 in GCP proliferation and ciliogenesis. Furthermore, Rab23''s potentiation of Shh signaling pathway through the primary cilium and Smo suggests a potential new therapeutic strategy for Smo/primary cilium-driven medulloblastoma.SIGNIFICANCE STATEMENT Primary cilium and Sonic hedgehog (Shh) signaling are known to regulate granule cell precursor (GCP) proliferation. Aberrant overactivation of Shh signaling pathway ectopically increases GCP proliferation and causes malignant childhood tumor called medulloblastoma. However, the genetic and molecular regulatory cascade of GCP tumorigenesis remains incompletely understood. Our finding uncovers Rab23 as a novel regulator of hedgehog (Hh) signaling pathway activity and cell proliferation in GCP. Intriguingly, we demonstrated that Rab23 confers dual functions in regulating Shh signaling; it potentiates primary cilium and Shh/Smoothened (Smo)-dependent signaling activation, while antagonizes basal level Hh activity. Our data present a previously underappreciated aspect of Rab23 in mediating extrinsic Shh signaling upstream of Smo. This study sheds new light on the mechanistic insights underpinning Shh signaling-mediated GCP proliferation and tumorigenesis.