共查询到20条相似文献，搜索用时 437 毫秒
1.
将葛根芩连汤加工成细粉（40-65目）和超微粉（300目）,高效液相色谱法（HPLC）测定葛根芩连汤细粉和超微粉中主要有效成分葛根素、黄芩苷的含量,研究超微粉碎技术对葛根芩连汤主要有效成分葛根素、黄芩苷溶出的影响。结果葛根芩连汤细粉和超微粉中葛根素的含量分别为2.05%、3.20%;葛根芩连汤细粉和超微粉中黄芩苷含量分别为2.78%、3.94%。葛根芩连汤超微粉中的葛根素、黄芩苷含量比细粉分别提高56.10%、41.73%。表明超微粉碎技术能显著提高葛根芩连汤中主要有效成分葛根素和黄芩苷的溶出度。 相似文献
2.
葛根芩连汤出自张仲景《伤寒论》,由葛根、黄芩、黄连、甘草4味药组成,有解表清里、升清止痢之功,症见身热、下痢。近年来国内外医学家通过实验研究证明葛根芩连汤具有解热、抗菌、抗病毒、解痉、抑制胃肠运动、抗缺氧、抗心律失常、增强机体免疫功能等药理作用,现代临床常用于 相似文献
3.
葛根芩连汤出自《伤寒论》太阳病第34条,方药组成为:葛根30g,黄芩20g,黄连15 g,炙甘草10 g(以上剂量通过实践自己所定). 相似文献
4.
优化和评价改良葛根芩连汤的提取工艺,为提高其临床适用性以及开发新兽药奠定基础。采用Box-Behnken设计-响应面法,以葛根素含量为评价指标,对提取次数、煎煮时间、加水量3个影响因素进行考察,并对响应面条件下17批样品进行定量分析,得出各因素对葛根素提取率的影响程度。通过Box-Behnken中心组和设计建立数学模型分析回归模型方差以及响应面曲面图,获得改良葛根芩连汤最佳提取工艺为：提取3次,提取时间2 h,加水量9倍。通过工艺验证测得葛根素含量平均值为0.810 8 mg/mL,与预测值0.811 0 mg/mL接近。优化的改良葛根芩连汤最佳提取工艺特征有效成分溶出率高,稳定可行,可为该复方制剂的进一步研究提供理论依据。 相似文献
5.
自2000年以来笔者采用葛根芩连汤加味治疗耕牛痢疾103例,治愈98例。介绍如下。1方剂组成及用法葛根芩连汤加味:葛根30g,黄芩45g,黄连30g,赤芍30g,银花45g,白头翁60g,木香18g,元胡24g,茯芩30g,甘草30g,上药共为细末,开水冲调,加磺胺脒30g,一次灌服,连服1~3剂2典型病例2003年9月1 相似文献
6.
基于网络药理学探讨葛根芩连汤治疗猪腹泻的靶点与通路 总被引：1，自引：1，他引：0
本研究旨在探讨葛根芩连汤治疗猪腹泻的靶点与通路。利用中药系统药理学分析平台（TCMSP）检测葛根芩连汤的化学成分和靶点,运用cytoscape 3.7.1软件构建并分析化合物-靶点网络、蛋白相互作用（PPI）网络和核心靶点通路网络。结果显示,经筛选后,共获得大豆苷元（daidzein）、葛根素（puerarin）、汉黄芩苷（oroxindin）、芒柄花素（formononetin）等60个活性成分,这些成分作用206个靶点,其中,TP53、TNF、IL-6、IL-8、JUN、STAT3等为核心靶点,这些核心靶点涉及磷脂酰肌醇3-激酶／蛋白激酶B信号通路、病毒致癌机制等。基于网络药理学分析结果,葛根芩连汤可能是通过TP53、TNF、IL-6、IL-8、JUN、STAT3等靶点调控腹泻与发热,本文为葛根芩连汤在猪腹泻治疗中的深入研究提供理论依据与线索。 相似文献
7.
8.
9.
《中国预防兽医学报》2017,(4)
为探索葛根芩连汤及葛根素对脂多糖(LPS)诱导小鼠小肠粘膜微血管内皮细胞(MIMVECs)分泌一氧化氮(NO)和内皮素(ET-1)的影响,本实验将葛根芩连汤、葛根素分别与LPS加入细胞板中,降低对原代MIMVECs的病理损伤,在不同时间,采用硝酸还原酶法和ELISA检测MIMVECs分泌的NO和ET-1。结果显示:在3 h~12 h,葛根芩连汤实验组与LPS对照组分泌的NO和ET-1的含量差异显著(p0.05);葛根素实验组与LPS对照组分泌的NO和ET-1的含量差异显著(p0.05)。表明葛根芩连汤和葛根素均能够对LPS损伤MIMVECs起到拮抗的作用,为进一步研究葛根芩连汤及其有效成分对LPS损伤MIMVECs的机理奠定基础。 相似文献
10.
11.
12.
13.
魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
14.
本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
15.
16.
以国际标准强毒Ｒ株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ,并收集感染鸡所产蛋分离ＭＧ。结果表明,人工感染４８小时后上、下呼吸道及肺已被全面感染,９６小时气囊已被感染,１２０小时输卵管已能分离到ＭＧ,卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染,油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
17.
REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
18.
19.
20.
Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献