隆朋对替来他明/唑拉西泮诱导的大鼠不同脑区c-fos基因表达的影响

分离麻醉药替来他明和苯二氮卓类安定药唑拉西泮按照1:1的质量比组成的Zoletil(中文商品名为舒泰),目前被广泛应用于兽医领域.隆朋是α2肾上腺能受体激动剂,具有一定的镇痛、镇静和肌松作用,并且与舒泰有明显的协同作用[1].原癌基因c-fos参与细胞内的信息传递,被称为神经元的第三信使,它参与重要脑功能的信号转导和调控过程,是一种脑功能活动形态学定位标记物[2].当机体受到某种刺激时,神经系统内与此机能有关的神经元均处于活动状态,而激发相应神经元内的c-fos基因表达,位于细胞浆内的c-fos mRNA很快进入细胞核转录形成Fos蛋白[3].本试验的目的是通过研究隆朋对替来他明／唑拉西泮诱导大鼠不同脑区Fos蛋白表达的影响,探讨隆朋对替来他明／唑拉西泮的作用机理.     

不同拮抗剂对舒泰麻醉小鼠的拮抗效果

舒泰是一种复合麻醉剂,其商品名为Zoletil。20世纪60年代末美国Parke-Davis实验室研制成功。舒泰是由替来他明(tiletamine)与唑拉西泮(zolazepam)重量比1∶1混合而成。替来他明是一种分离麻醉剂,作用持久,具有良好的止痛作用。唑拉西泮是一种苯二氮卓类的镇静剂,具有良好的肌     

兽用麻醉药品的种类及特点

1舒泰 复合麻醉剂，由替来它明与唑拉西泮1：1混合而成。替来它明是一种分离麻醉剂，作用持久，具有良好的止痛作用。唑拉西泮是苯二氮卓类的镇静剂，具有良好的肌松作用和抗惊厥作用。这2种药物在药物动力学上有互补作用。     

舒泰对野生猕猴麻醉效果的观察

利用舒泰50(替来它明和唑拉西泮合剂)对36只野生猕猴按(5.79±1.28)mg/kg的剂量肌肉注射进行麻醉,麻醉期间对镇痛、镇静、肌松、呼吸、心率、血压、体温及血氧饱和度等指标进行监测.结果显示:舒泰对猕猴的诱导期为(2.72±1.72)min,平均诱导效果判定为"极好",麻醉期间体温为(38.74±0.46)℃,...     

小型猪血浆中舒泰两种成分测定方法的建立

舒泰是一种复合麻醉剂,其商品名为"Zoletil"或"Telazol".它是由20世纪60年代末在美国Parke-Davis实验室研制成功的.舒泰是由替来他明(tiletamine)与唑拉西泮(zolazepam)按1∶1混合而成[1].替来他明是一种分离麻醉剂,作用持久,具有良好的止痛作用;唑拉西泮是一种苯二氮卓类的镇静剂,具有良好的肌松和抗惊厥作用,这两种药物在药理学上有互补作用.     

常见兽用麻醉药品及其特点

1舒泰舒泰是复合麻醉剂,由替来它明与唑拉西泮1∶1混合而成。替来它明是分离麻醉剂,作用持久,具有良好的止痛作用;唑拉西泮是苯二氮卓类的镇静剂,具有良好的肌松作用和抗惊厥作用。这2个药物在药物动力学上有互补作用,安全范围较大,对肌肉和     

阿替美唑对小型猪特异性麻醉剂诱导大鼠大脑皮质c-jun蛋白表达的影响

研究阿替美唑对小型猪特异性麻醉剂(XFM)麻醉下大鼠大脑皮质c-jun蛋白表达的影响,探讨阿替美唑颉颃XFM催醒大鼠与脑皮质c-jun基因的关系.将78只SD纯种大鼠随机分为XFM对照组、XFM+阿替美唑组、XFM+生理盐水组.采用蛋白质印迹法检测大脑皮质内c-jun蛋白表达量.结果表明,XFM麻醉大鼠大脑皮质内c-jun蛋白表达量逐渐增加,与给药前0 min比较差异显著(P＜0.01或P＜0.05);XFM麻醉大鼠腹腔注射生理盐水,各时间点c-jun蛋白表达与对照组间比较无显著差异(P＞0.05);阿替美唑注射后引起XFM麻醉大鼠大脑皮质c-jun蛋白表达减少,与XFM对照组比较差异显著(P＜0.01或P＜0.05).结果提示,大脑皮质c-jun基因参与了阿替美唑颉颃XFM麻醉作用.阿替关唑抑制XFM诱导大鼠大脑皮质c-jun蛋白表达,可能是阿替美唑催醒XFM麻醉大鼠的重要机理之一.     

舒泰对犬心血管系统呼吸系统和体温的影响

舒泰是一种复合麻醉剂，其英文商品名为“Zoletil”或“Telazol”，20世纪60年代末在美国Parke-Davis实验室研制成功的。舒泰是由替来它明（tiletamine）与唑拉西泮（zolazepam）1：1混合而成。替来它明是一种分离麻醉剂，作用持久，具有良好的止痛作用。唑拉西泮是苯二氮卓类的镇静剂，具有良好的肌松作用和抗惊厥作用。     

阿替美唑对小型猪特异性麻醉剂诱导大鼠大脑皮质内Fos蛋白表达的影响

研究阿替美唑对小型猪特异性麻醉剂(XFM)麻醉下大鼠大脑皮质Fos蛋白表达的影响,探讨阿替美唑颉颃XFM催醒大鼠与大脑皮质c-fos基因的关系。将72只SD纯种大鼠随机分为XFM对照组、XFM+阿替美唑组、XFM+生理盐水组,每组又按采脑时间点分成4个亚组。采用蛋白质印迹法检测大脑皮质内Fos蛋白表达量。结果表明:XFM麻醉大鼠大脑皮质内Fos蛋白表达量逐渐增加,与给药后10min比较差异显著(P<0.01或P<0.05);XFM麻醉大鼠腹腔注射生理盐水,各时间点Fos蛋白表达量与对照组间比较无显著差异(P>0.05);阿替美唑注射后引起XFM麻醉大鼠大脑皮质Fos蛋白表达量减少,与XFM对照组比较差异显著(P<0.01或P<0.05)。结果提示,大脑皮质c-fos基因参与了阿替美唑颉颃XFM麻醉作用。阿替美唑抑制XFM诱导大鼠大脑皮质Fos蛋白表达,可能是阿替美唑催醒XFM麻醉大鼠的重要机理之一。     

药物辅助性犯罪中兽药麻醉剂舒泰的UPLC-MRM-IDA-EPI-MS鉴定

建立了使用UPLC-MRM-IDA-EPI-MS技术同时定性、定量检验唑拉西泮、替来他明的方法并应用于实际案例.血、尿样品经乙腈提取,PRIME-HLB固相萃取小柱净化后,以0.01％的甲酸1 mM甲酸铵水-乙腈作为液相流动相,经phenomenex Kinetex F5(100×3.0 mm,2.6μm)色谱柱分离后...     

商会自治的基石——商会自治规范研究

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。     

癸氧喹酯干混悬剂含量测定的改进

采用高效液相色谱法测定癸氧喹酯干混悬剂的含量,在2-250μg/mL范围内,峰面积的常用对数与进样量浓度的常用对数呈良好的线性关系,R^2=1(n=5),平均回收率为99.24%~99.51%,RSD在0.05%~0.28%。此方法分析时间短,样品前处理简便、定量结果准确,重现性好,结果满意,为其质量控制提供了依据。     

猪毛色遗传的研究进展

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。     

Comparison of 2 methods of centesis of the bursa of the biceps brachii tendon of horses

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.     

不同样本商品蜂蜜中硒含量的测定

用硝酸和高氯酸消化蜂蜜,使硒游离出来,在微酸性环境下,硒和2,3-二氨基萘(DAN)生成有较强荧光的物质,用环己烷萃取,在激发波长378nm,荧光波长518nm处测定其荧光强度。蜂蜜中硒含量范围:0.10～0.82μg/g。表明:蜂蜜应视为天然富硒营养品。     

乳酸杆菌益生作用机制的研究进展

乳酸杆菌作为益生菌广泛用于人和动物。本文综述了乳酸杆菌改善宿主健康的机制。乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道。文章重点讨论了乳酸杆菌表面成分（表面蛋白、脂磷壁酸和肽聚糖）与肠道受体（Ｃ型凝集素受体、Ｔｏｌｌ样受体和 Ｎｏｄ样受体）,阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制。     

中华人民共和国农业部公告 第267号

为贯彻落实《兽药生产质量管理规范》(简称《兽药GMP》),进一步推动兽药GMP实施进程,我部制定了《兽药生产质量管理规范检查验收办法》,现予公告。本公告自2003年6月1日起施行。附件:兽药生产质量管理规范检查验收办法二○○三年四月十日第一章 总则 第一条 为推动《兽药生产质量管理规范》(以下简称兽药GMP)的实施,规范兽药GMP检查验收工作,制定本办法。 第二条 农业部负责全国兽药GMP管理和检查验收工作;负责制修订兽药GMP检查验收管理规定;负责兽药GMP检查员队伍建设和监督管理工作,负责国际兽药贸易中GMP互认工作。 …     

鸡败血支原体垂直传播模式及其阻断方法

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。     

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.