PBL结合CBL教学法在药事管理学教学中的探讨与实践

对学校2009级中草药栽培与鉴定专业的药事管理学课程PBL结合CBL教学的实践进行总结,以探索该课程的教学改革,培养学生的创新能力和综合能力,实现教学效果与教师业务水平的双提高为内容,为该课程的进一步教学改革奠定良好的基础。实践证明,PBL结合CBL教学法适用于药事管理学课程,如果运用得当,能极大提升教学效果。     

不同软化方式切片对天麻中的天麻多糖和天麻素含量的影响

目的比较不同软化方式切片对天麻中的天麻多糖、天麻素的含量差异,以确定最佳软化方式。方法用紫外可见分光光度法测定泡法软化、淋润法软化、烘法软化、蒸法软化4种不同软化方式切片天麻中的多糖含量,检测波长490nm,用HPLC法测定天麻中的天麻素含量。结果与结论4种不同软化方式中以蒸法软化的天麻中天麻多糖、天麻素含量最高。     

逆行荧光标记观察猫上橄榄复合体向内耳的投射

Objective To investigate the distribution and projective feature of cat olivocochlear neurons. Methods Eleven adult cats were divided into two groups randomly. The experimental group of eight cats was injected of I% cholera toxin B (CTB) to the left cochlea, while injected of 5% fluoro gold (FG) to the right cochlea. The control group of three cats was injected of saline to bilateral cochlea. After a survival time of 7 days, serial frozen sections were cut in the cat brainstem. All the sections were processed by immunofluoreseent procedure for CTB and FG, and the labeled olivocochlear neurons were observed byfluorescent microscope. Results In the experimental group, the mean total of olivocochlear neurons labeled by CTB and FG was 3210 ± 168, including lateral olivocochlear neurons (LOC, 2298 ± 120) and medial olivocochlear neurons (MOC,913 ± 64). The labeled neurons were divided into three different types according to their feature of projection: neurons which only projected to the ipsilateral cochlea, neurons which only projected to the contralateral cochlea, and double-labeled neurons which projected both to the ipsilateral and contralateral cochlea, but the double-labeled neurons comprised 3.9% and 15. 1% in the LOC and MOC system respectively. No labeled neurons were found in the control group. Conclusions There are three types of neurons in the cat olivocochlear system. The neurons which projected to the bilateral cochlea may distribute both in the LOC and MOC system.     

腭部软组织壁性成釉细胞瘤1例

壁性成釉细胞瘤是一种少见的牙源性肿瘤。而发生于软组织的壁性成釉细胞瘤更罕见。作者于2004年11月收治腭部软组织壁性成釉细胞瘤1例,现报告如下。     

油松叶挥发油镇痛抗炎作用的实验研究

目的：观察油松叶有效成分挥发油的镇痛及抗炎作用。方法：用冰醋酸致小鼠扭体及热板法测定痛闽值观察其镇痛作用；用二甲苯诱发小鼠耳壳肿胀及甲醛致足肿胀观察其抗炎作用。结果：油松叶挥发油能明显抑制醋酸引起的小鼠扭体次数；明显增加小鼠的痛阈值。对二甲苯诱发小鼠耳肿胀及甲醛致足肿胀均有较强的抑制作用。结论：油松挥发油的镇痛及抗炎等药理作用确切。     

掌叶大黄多糖超滤工艺优选

目的:探讨超滤膜技术分离纯化掌叶大黄多糖的可行性工艺.方法:采用正交设计法优选超滤前离心条件;以超滤压力、料液温度及料液浓度为考察因素,以粗多糖得率和含量为考核指标,均匀设计优选超滤工艺参数.结果:最佳超滤条件为药液以3 000 r-min -1离心处理12 min,用分子截留量10万的膜,超滤压力为0.05 ～0.09 MPa,药液温度40℃,药材与提取液质量比1∶10 ～1∶30,pH 6.0,超滤膜先用tween-80(5 g·L-1)处理10 min.结论:优化所得超滤工艺与未超滤相比有较高的多糖得率和含量.超滤技术可用于纯化、富集掌叶大黄多糖,具有产业化开发前景.     

高速泳动族蛋白I/Y和J un-B在胃癌中的表达及意义

胃癌发生、发展机制尚不明确.有研究认为,高速泳动族蛋白I/Y(HMG I/Y)与许多恶性肿瘤的恶性转化及侵袭转移有关,主要通过刺激细胞过度生长、破坏DNA损伤修复能力~([1])及抑制P53蛋白的促细胞凋亡活性参与肿瘤发生和发展.Jur-B蛋白是与细胞周期相关的核蛋白,通过启动细胞凋亡程序、抑制细胞增生参与肿瘤形成、侵袭和转移等生物学过程.     

逆行荧光标记观察猫上橄榄复合体向内耳的投射

Objective To investigate the distribution and projective feature of cat olivocochlear neurons. Methods Eleven adult cats were divided into two groups randomly. The experimental group of eight cats was injected of I% cholera toxin B (CTB) to the left cochlea, while injected of 5% fluoro gold (FG) to the right cochlea. The control group of three cats was injected of saline to bilateral cochlea. After a survival time of 7 days, serial frozen sections were cut in the cat brainstem. All the sections were processed by immunofluoreseent procedure for CTB and FG, and the labeled olivocochlear neurons were observed byfluorescent microscope. Results In the experimental group, the mean total of olivocochlear neurons labeled by CTB and FG was 3210 ± 168, including lateral olivocochlear neurons (LOC, 2298 ± 120) and medial olivocochlear neurons (MOC,913 ± 64). The labeled neurons were divided into three different types according to their feature of projection: neurons which only projected to the ipsilateral cochlea, neurons which only projected to the contralateral cochlea, and double-labeled neurons which projected both to the ipsilateral and contralateral cochlea, but the double-labeled neurons comprised 3.9% and 15. 1% in the LOC and MOC system respectively. No labeled neurons were found in the control group. Conclusions There are three types of neurons in the cat olivocochlear system. The neurons which projected to the bilateral cochlea may distribute both in the LOC and MOC system.