树莓叶黄酮提取的正交试验和响应曲面法工艺优化对比

旨在为树莓叶黄酮的开发应用提供数据参考,通过正交试验与响应曲面法设计改良乙醇提取工艺,并通过HPLC建立树莓叶黄酮的色谱分离条件为:Agilent ZorBax SB色谱柱,流动相为1mg/mL乙酸-乙腈=72.5∶27.5,等度分离,柱温30℃,检测波长:257nm,完成树莓叶黄酮的初步分离,以及黄酮中芦丁含量的准确测定和验证。最佳提取工艺为:646mL/mL乙醇,料液比1∶12.5,41.9℃加热回流173.3min,最佳工艺所得提取率1.127%,响应曲面法最佳工艺提取率略高于正交试验法,且其工艺条件均较优于正交试验所得工艺,可为后期研发树莓叶芦丁兽用中药制剂提供理论参考。     

环颈雉泄殖腔一侧壁受双侧传出神经的支配—CB—HRP法研究

将CB－HRP溶液注入环颈雉泄殖腔的一侧壁内，逆行追踪其传出神经元，实验结果表明：①标记的节后神经元出现于双侧S4－S9交感干神经节内，左右侧泄殖腔神经节内，以注射侧为主。②标记的节前神经元分别出现于T6－L3髓节和S3－S8髓节内，但以同侧为主。     

荧光数模评茧技术的推广与应用

本文通过浙一、辛江两茧站５年采用荧光数模评茧法收茧实例,说明了该评茧方法完全达到实用水平。     

群体药动学方法

群体药动学方法主要有单纯集聚法,二步法及非线性混合效应模型法,尤其是非线性混合效应模型法由于能处理临床治疗药物监测中收集的稀少数据,目前已应用于新药评价,生物利用度估算以及临床监测药物的群体药动力学研究。     

Study on Developmental Expression of ApoCⅡ Gene mRNA in Liver Tissues of Pigs

The aim of this study was to investigate the developmental patterns of ApoCⅡ gene mRNA in liver in Mashen and Large White pigs, and study the relationship between the expression level of ApoCⅡ and the lipid metabolism in pigs.The mRNA relative expressions of ApoCⅡ gene in liver at seven stages of 1,30,60,90,120,150,and 180-day old in Mashen and Large White pigs were determined by quantitative Real-time PCR.The results showed that the developmental trend of ApoCⅡ mRNA expression in liver between Mashen and Large White pigs was different.The ApoCⅡ mRNA abundance was decreased from birth to 60-day old,then increased at 90-day old,and decreased again after that in Mashen pig.However,the relative expression amount in Large White pig was gradually decreased from birth to 150-day old and increased again at 180-day old.Except for the ApoCⅡ mRNA expression amount at 1-day old,the differences of the expression amount at other stages in Mashen and Large White pigs were significant or extremely significant (P<0.05 or P<0.01).The ApoCⅡ mRNA expression in liver was affected by age and breed,and could play an important role in lipid metabolism in pigs.