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淫羊藿别名仙灵脾,为小檗科植物淫羊藿 Epi-medium grandiflorum Morr.、心叶淫羊藿 Epi-medium brevicornum Maxim.、箭叶淫羊藿Epimedium Sagittatum(Sieb.et Zucc·)Maxim.等的茎叶。辛甘而温,入肝肾二经,为补肾壮阳、祛风除湿的首选药物。主治肾阳不足所致的滑精阳痿、小便淋漓、腰肢痿软;又用于治疗风湿痹痛、四肢不仁、筋骨挛急。李时珍说:“淫羊藿,牲温而不寒,能益精气,真阳不足者宜之。”据现代药理研究,淫羊藿含羊藿甙、皂甙、苦味质、鞣质等,具有性激素、免疫、扩张冠状动脉、 相似文献
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本研究旨在建立高效液相色谱法测定不同粒径淫羊藿中淫羊藿苷的溶出量。采用Shimadzu VP-ODS(150 mm×4.6 mm,5 μm)为色谱柱,以乙腈:水(25:75,V/V)为流动相,流速为1 mL/min,在270 nm波长下进样10 μL进行检测,结果显示淫羊藿苷在0.08～0.40 mg/mL范围内与峰面积呈良好的线性关系(r=0.9999),相对标准偏差(RSD)为1.62%,平均回收率为97.11%～101.08%,该含量测定方法简单、快速,所测定的淫羊藿苷溶出量随着淫羊藿粒径的变小而增加,但粉碎到100目以上时,淫羊藿苷的溶出量不再随粒径的减小而增加。 相似文献
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旨在优化淫羊藿多糖醇沉条件并研究不同浓度乙醇醇沉的淫羊藿多糖对巨噬细胞释放NO的影响。采用乙醇沉淀法从淫羊藿多糖提取物中获得淫羊藿多糖,在单因素试验基础上,选择浓缩比、乙醇浓度、乙醇体积倍数、醇沉时间为自变量,采用L9(34)的正交试验设计,优化淫羊藿多糖最佳醇沉条件。用浓度为400、500、600、700、800mL/L乙醇醇沉的淫羊藿多糖,采用体外培养法,测定淫羊藿多糖对巨噬细胞释放NO的影响。结果表明,淫羊藿多糖最佳醇沉条件为浓缩比为1∶2,乙醇浓度为800mL/L,乙醇体积倍数为4倍,醇沉时间为12h;每个乙醇浓度醇沉的淫羊藿多糖均具有良好的活性,500mL/L乙醇醇沉的多糖活性最好。结果显示,淫羊藿多糖对巨噬细胞具有良好的刺激作用。 相似文献
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《畜牧与兽医》2016,(5):105-107
用在体和离体试验研究淫羊藿苷对小鼠卵母细胞体外发育与成熟的影响。健康雌性小鼠分组灌服0.1、0.3、0.5和0.7 mg/d淫羊藿苷或2、6、10及14 mg/d淫羊藿水提液,并设生理盐水灌服对照组,取连续灌服7d和14d小鼠卵巢卵泡卵母细胞作体外成熟培养与体外受精,统计第一极体(pb I)排出率和受精率。在小鼠卵母细胞体外成熟培养液中按高(5μg/m L)、中(0.5μg/m L)、低(0.05μg/m L)剂量添加淫羊藿苷,经24 h成熟培养后进行体外受精,观察并记录卵母细胞pb I排出、受精和卵裂情况。结果表明,分别连续灌服淫羊藿苷和淫羊藿水提液后,各组小鼠卵母细胞细胞体外成熟率均有所提高,连续灌服7 d后,淫羊藿苷0.3、0.5和0.7 mg/d组小鼠卵母细胞受精率较对照组显著提高(P0.01);连续灌服14 d淫羊藿水提液6 mg/d组卵母细胞pb I排出率和受精率均显著高于对照组(P0.05)。添加淫羊藿苷低剂量组小鼠卵母细胞体外受精率和卵裂率显著高于对照组(P0.05);pb I排出率虽高于对照组,但无显著差异。本试验表明,连续灌服淫羊藿苷7 d对小鼠卵母细胞体外发育与成熟具有明显的促进作用;体外培养液中添加低剂量淫羊藿苷对小鼠卵母细胞体外成熟和受精具有促进作用,但高剂量反而有抑制作用。 相似文献
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利用纤维素酶辅助热水浸提法从淫羊藿中提取淫羊藿多糖,在单因素试验结果的基础上,选择酶浓度、酶提温度、酶提时间为自变量,采用三因素三水平的Box-Behnken响应面设计,优化淫羊藿多糖的提取工艺。试验结果表明,淫羊藿多糖酶辅助提取的最佳工艺参数：酶浓度110U/uL,酶提温度60℃,酶提时间100min,且酶提温度对多糖提取率的影响最大。在最佳优化条件下淫羊藿多糖提取率为10.06%,接近模型的最大预测值（10.199%）。试验为淫羊藿多糖的临床开发应用提供了依据。 相似文献
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《中国兽医杂志》2016,(10)
为观察淫羊藿多糖对生精障碍BALB/c小鼠的治疗作用,将印只BALB/c雄性小鼠随机分为空白组、模型组、阳性药物组、淫羊藿多糖高、中、低剂量组,每组10只;除空白组外,其余各组小鼠腹腔注射醋酸铅制备小鼠生精障碍模型。通过灌胃不同浓度淫羊藿多糖及阳性药物维生素E,研究了淫羊藿多糖对生精障碍小鼠精子数量、畸形率、活率,生殖激素水平及睾丸形态的影响。结果:淫羊藿多糖各剂量组能够升高生精障碍小鼠精子密度和精子活率,降低精子畸形率,降低血清卵泡雌激素和黄体生成素水平,升高睾丸组织睾酮含量(P0.01),且各剂量组对生精功能改善作用呈剂量依赖性。形态学观察,淫羊藿多糖可改善小鼠睾丸组织的病理学损害。表明淫羊藿多糖对醋酸铅所致小鼠生精功能的损伤具有治疗作用,作用机制可能与改善或恢复生殖内分泌激素水平有关。 相似文献
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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
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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
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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
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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
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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