血管活性肠肽及NKG2D在胃腺癌组织中的表达及意义

胃癌是消化道最常见的恶性肿瘤,其中以腺癌更为常见.但目前为止胃癌的发病机制尚不十分清楚,尤其是在神经内分泌方面的发病机制研究甚少.许多肿瘤能分泌胃肠激素,血管活性肠肽(vasoactire intestinal peptide,VIP)属于胰泌素/VIP族的胃肠肽类激素,是最重要的脑肠肽和肽类神经递质之一,调节着多个系统的功能[1].     

《中药炮制学》实验教学方法改革与应用

对不同专业的《中药炮制学》实验教学方法改革实践进行总结,并探索该课程的教学改革方法与途径,培养学生的创新和实践能力,提高学生分析实际问题和结局问题的能力,同时也为该课程的进一步教学改革奠定良好的基础。     

MSX1基因微卫星多态性与非综合征性唇腭裂的相关性研究

目的探讨肌肉片段同源盒1基因（muscle segment homeobox1,MSX1）与湖南汉族非综合征性唇腭裂（nonsydromic cleft lip and patate,NSCLP）的相关性。方法以MSX1基因内含子区的（CA）n微卫星作为遗传标记,对湖南汉族129例NSCLP患儿和108名正常儿童采用聚合酶链反应-变性聚丙烯酰胺凝胶基因分型技术进行基因分型,并经测序确定片段长度,应用病例对照研究进行相关性分析。结果湖南汉族人群MSX1基因（CA）n等位基因分布符合Hardy-Weinberg平衡,杂合率及多态信息量均为0.50;CA4等位基因频率在唇裂伴或不伴腭裂组及单纯性腭裂组高于对照组,CA4,4基因型频率在唇裂伴或不伴腭裂组和单纯性腭裂组高于对照组,差异均有统计学意义（均P〈0.05）。结论MSX1基因内（CA）n微卫星是多态性较好的遗传标记;MSX1基因可能与湖南汉族人群NSCLP发病相关。     

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。     

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。     

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.     

正交试验法优选麸炒白术工艺研究

目的探讨麸炒白术的最佳炮制工艺。方法以水溶性浸出物含量、醇溶性浸出物含量、挥发油含量为指标,选择辅料用量、加热温度、加热时间3个因素,用L9(34)正交设计表,采用综合加权评分法,对上述三因素进行炮制工艺的优选。结果麸炒白术最佳炮制工艺为:辅料用量10%,加热温度150℃,加热时间5min。结论为进一步制定麸炒白术饮片的质量标准提供了参考依据。     

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.     

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.     

NKG2D及NF-κB在胃腺癌组织中的表达及意义

目的 探讨NKG2D和核因子-κB(NF-κB)在胃腺癌及癌旁正常组织中的表达及其与临床病理参数之间的关系.方法 通过免疫组织化学的方法,检测南昌大学第一附属医院20例胃腺癌组织及癌旁正常组织中NKG2D和NF-κB的蛋白表达情况,分析组织中表达率及表达强度与临床病理参数之间的关系.结果 ①NKG2D在胃腺癌及癌旁正常组织中的阳性表达率分别为55%和100%(P<0.01);而NF-κB在胃腺癌及癌旁正常组织中的阳性表达率分别为95%和20%(P<0.01).②NKG2D在低分化、Ⅲ-Ⅳ期、有淋巴结转移的胃腺癌组织中显著降低,而NF-κB在低分化、Ⅲ-Ⅳ期、有淋巴结转移的胃腺癌中显著升高(P<0.05).③NKG2D和NF-κB的表达之间呈负相关(P<0.05).结论 胃腺癌组织中NKG2D表达下调而NF-κB表达上调,且二者的表达成负相关,NKG2D和NF-κB在胃癌发生发展中可能有重要作用.