豚鼠

Several physical parameters of experimental blast underpressure and morphological and function changes of auditory organs in guinea pigs expsosed to underpressure were observed and analysed in different conditions.

通过 16 4只豚鼠 318耳的观察，发现不同强度冲击波负压暴露后，中耳、内耳的形态结构和听功能发生了不同程度的创伤或损害，且具有良好的稳定性和重复性。

Blast underpressure ; auditory organ ; trauma model ; guinea pig

冲击波负压；听觉器官；创伤模型；豚鼠

Chicken IL-15(ChIL-15), Which was discovered in 2001, plays a main role in activating NK cells and CD8+ memory T cells, and may therefore have potential as a vaccine adjuvant.According to published ChIL-15 gene sequence, a pair of primers were designed and synthesized to clone ChIL-15 cDNA from ConA-activated chicken splenocytes by RT-PCR. Recombinant plasmid pUC19ChIL-15 carrying the ChIL-15 gene was constructed. The gene encoding mature ChIL-15 (mChIL-15) was amplified from pUC19ChIL-15 by PCR and cloned into pMD 18-T vector. After digested with Kpn I /Pst I , the mChIL-15 gene was subcloned into prokaryotic expression vector pPRoEX橦Ta and transformed into E.coli DH5a .The transformant was induced by IPTG, and the recombinant ChIL-15(rChIL-15) was expressed as a fusion protein with a histidine hexamer tag at the N-terminal end of the protein. Following expression, the protein was purified by ProBond?Nickel-Chelating Resin. The uninduced and induced protein lysates and the purified protein were separated by SDS-PAGE and transferred onto nitrocellulose membrane to identify rChIL-15 by Western blot. The rChIL-15 was used to immune the guinea pig to obtain rChIL-15 polyclonal antibody.

参考已发表的ChIL-15基因序列，设计合成引物，应用RT-PCR技术从刀豆球蛋白A活化的白来航鸡脾淋巴细胞中克隆ChIL-15 cDNA，将其与SmalⅠ酶切处理的pUC19载体连接，构建重组质粒pUC19ChIL-15；用PCR技术从pUC19ChIL-15中扩增出去信号肽的成熟ChIL-15(mChIL-15)基因，与pMD 18-T载体相连构建重组质粒pMDChIL-15；然后用KpnⅠ／PstⅠ双酶切下mChIL-15基因片段，定向亚克隆到经同样酶切处理的带有6个组氨酸标签的表达载体pP_RoEX~HTa中，构建重组质粒pP_RoChIL-15，对其测序确认读框正确后，转入大肠杆菌DH5α中诱导表达并进行纯化，用重组ChIL-15(rChIL-15)免疫豚鼠，制备多克隆抗体；再用HindⅢ／PstⅠ从质粒pP_RoChIL-15上切下mChIL-15基因，定向亚克隆到经同样酶切处理的杆状病毒转移载体pMelBacB中，经酶切、PCR和序列测定鉴定后，与杆状病毒线形化DNABac-N-Blue~(TM DNA共转染Sf9昆虫细胞，经三轮蚀斑纯化，构建重组杆状病毒rBac-ChIL-15，用该重组病毒感染处于对数生长期的Sf9细胞，按不同的时间收取样品，离心后对其上清和沉淀进行SDS-PAGE和Western blot分析。

Methods Neomycin was used to destroy guinea pig utricular hair cells in vitro.The culture in experimental groups was supplemented with bFGF.The culture in control group was not supplemented with bFGF.All utricles were observed by scanning electronic microscope,and the number of survival utricular hair cells was accounted.

采用离体的豚鼠椭圆囊培养法，对照组为普通前庭培养液培养，实验组按培养液中含和不含bFGF分组，用新霉素造成各实验组培养的椭圆囊毛细胞损伤，各组椭圆囊均行扫描电镜检查并行毛细胞计数。

Results AE from CM had vasodilating effect on the contracti on of mesentery blood capillary in guinea pigs and the contraction of rat thoracic aortic ring induced by l0μmol/L phenylephrine, even under the condition of pre-treating with glibenclamide (1μmol/L) or propranolol (3μmol/L). When the endothelium of the rat thoracic aortic ring was removed, AE from CM had not vasodilating effect hut constrictive effect. AE from CM could also increase the contents of NO, NOS and cNOS in the aortic tissue and had no obvious effect on the NO content in plasma and iNOS in aortic tissue of rats.

结果 桑白皮丙酮提取物有抑制去甲肾上腺素收缩豚鼠肠系膜微血管的作用，抑制苯肾上腺素(10μmol/L)收缩离体大鼠胸主动脉环的作用，预加优降糖或普蔡洛尔(3μmol／L)后仍然有松弛作用；大鼠胸主动脉环去内皮后药物无松弛作用，反而起收缩作用；显著升高血管的NO和NOS、cNOS含量，对大鼠血浆的NO和血管iNOS的含量影响不大。

Further studies are underway to investigate the exact intracellular mechanisms underlying the effects of the two substances. In Chapter 4, we observed the effects of metabolites of mangrove fungus Xylaria sp. from the South China Sea Coast, Xyloketal A～D, on the activity of acetylcholinesterase in vitro, and the present data indicated that AChE activity was remarkably inhibited by Xyloketal A～D in a dose-dependent manner.

另一方面，在论文第3章离体豚鼠回肠收缩实验中，发现323-A和323-B可剂量依赖性地抑制组胺、乙酰胆碱以及氯化钾所引起的GPI收缩，pD2'依次为5.13、4.97、5.36和5.51、5.56、5.62，并且，通过机制分析发现，323-A和323-B可以显著降低在外界无钙离子存在时由细胞内钙储库释放钙所产生的收缩反应，而对由细胞外钙离子内流所引起的收缩无明显影响。

Guinea pigs are also able to eat dirt.

豚鼠还可以吃污物。

In the end, for guinea pig lovers like myself, it's all worth it!

最后，对豚鼠情人像我一样，这一切都值得！

The project of group B beseems to establish the susceptible model of guinea pig to noise-induced heating loss for screening susceptible animal .

结论B方案更适合于建立筛选用的豚鼠噪声听觉损伤易感模型。

In cavies a heart condition may appear in the form of repeated URIs that do not respond to antibiotics.

当豚鼠的心脏不好的情况下，可能会通过反复的呼吸道感染的形式，不对抗生素产生反应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。