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中草药对免疫功能的影响 总被引：5，自引：0，他引：5
据《中药大辞典》记载，我国中草药的品种已达5767种，居世界之首，其中近200种中草药具有免疫活性。包括：①扶正固本类，能提高机体的免疫力，如人参、黄芪、灵芝、茯苓、五味子、淫羊霍、鹿茸、枸杞等；②补虚药如党参、白术、甘草等有补益正气，增强机体的功能；③补阳药如仙茅、锁阳、菟丝子、肉桂、黄精等，有促进抗体形成提前作用；④补阴药如天冬、北沙参、人参、炙鳖甲等有延长抗体存在时间的作用圜；⑤活血化瘀药如川芎、红花、丹参、鸡血藤、桃仁等同；⑥清热类药如蒲公英、金银花、黄连、黄芩等；⑦少数解表、固涩、止血、泻下、驱虫药物，如柴胡、仙鹤草、大黄、薏苡仁等也有增强免疫的作用嘲，丹皮、赤芍可增强体液免疫的功能。 相似文献
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鸡球虫病是影响养鸡生产的重要寄生虫病，试验采用单味钩藤和以钩藤为主的中草药复方制剂进行抗球虫病的疗效试验。按给药剂量分为9组，每组10羽，1、2、3组给药剂量分别为0．5ml、1．0ml、1．5ml的单味钩藤中药组，4、5、6组则以钩藤为主的中草药复方制剂组及地克珠利组、感染不给药组和不感染不给药组。结果表明，单味钩藤中药1、2、3组和以钩藤为主的中草药复方制剂4、5、6组、地克珠利组的抗球虫指数（ACI）分别为177．1、181．4、182．1；179．9、182．4、188．5；185．4，单味钩藤中药1组和以钩藤为主的中草药复方制剂4组为轻度抗荮陛，其余均为敏感。结果表明，钩藤对抗鸡柔嫩艾美尔球虫具有显著疗效。由于中草药具有毒性低，使用安全、残留少等优点，在防制鸡球虫病方面具有良好的应用前景。 相似文献
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通过检测白头翁汤水提物及其组方的各单味药对中性粒细胞c AMP-磷酸二酯酶(PDE)活性的影响,探讨其抗炎机理。结果表明白头翁汤较其组方的各单味药对中性粒细胞c AMP-PDE的抑制作用更强;白头翁汤组方中各单味药对中性粒细胞c AMP-PDE活性抑制作用是以黄连为主。该研究显示白头翁汤水提物可能是通过抑制c AMP-PDE活性,升高炎症细胞c AMP水平发挥抗炎作用。其抗炎成分及机理有待于进一步研究。 相似文献
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1优点一些中兽药,特别是补虚药和复方制剂,能够使动物机体产生特异和非特异免疫功能,增强细胞和体液的免疫力。如党参、首乌、刺五加能提高外周白细胞,增强网状内皮系统吞噬功能。动物服用川黄芪后,血中IgE、IgM含量显著增加。清热类药在抗病原微生物方面效果尤为显著,如双花、黄芪、板蓝根、贯众等对葡萄球菌、溶血性链 相似文献
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中药复方对雏鸡接种ND疫苗免疫效果的影响 总被引：1，自引：1，他引：0
为了提高免疫效果，许多畜牧兽医工作者在积极研究免疫增强剂的作用，其中也包括中草药的免疫增强作用的研究，相关文献报道较多，尤其是补益药，无论是对机体特异性免疫，还是非特异性免疫均有一定的促进和调节作用。目前已确定的有几十种中药有增强畜禽机体免疫力、提高抗病力的作用，但新疆中药，特别是生长于塔里木盆地的中药，在免疫增强作用方面研究报道不多。本试验研究采用补益药当归、白芍、党参、黄芪结合生长于塔里木盆地的具有免疫增强作用的权枝鸦葱、碱蓬、沙枣、镰叶碱蓬、沙棘、沙拐枣、盐穗木、大芸等， 相似文献
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中药促孕灌注液及其主要组分药对小白鼠阴道上皮的影响比较研究 总被引：2，自引：0，他引：2
通过阴道涂片和组织切片的观察和显微测量定量分析,比较研究了中药促孕灌注液及其主要组分药红花、淫羊藿、益母草对成年去势小白鼠阴道上皮的影响。结果表明,各药均能引起小白鼠阴道上皮增生、角化,提示它们均有微弱的雌激素样作用。各药的作用强度与它们对子宫内膜的作用强度相同:复方的作用明显强于单味药;三种单味药相比,淫羊藿作用稍强,红花和益母草的作用稍弱。 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