银杏达莫联合高压氧治疗高血压脑出血术后的疗效观察

目的 观察银杏达莫注射液联合高压氧治疗微创血肿清除术后高血压脑出血的临床疗效及其安全性。方法 选取94例行微创血肿清除术的高血压脑出血患者作为研究对象,采用随机数字表法将其分为观察组及对照组。对照组给予高压氧治疗；观察组在对照组治疗的基础上另给予银杏达莫注射液治疗,两组治疗时间均为14 d。治疗后对患者疗效进行评价；治疗前后分别检测各组患者血管外周阻力(R)、动态阻力(DR)、脑血管平均流速(Vmean)和脑血管平均流量(Qmean)等脑血管功能水平,并观察各组患者NIHSS评分、Fugl-Meyer运动功能评价量表及格拉斯哥昏迷指数(GCS)评分。结果 观察组总有效率为85.1%,明显高于对照组(P<0.05)。两组患者治疗后脑血管功能指标、NIHSS、Fugl-Meyer及GCS评分均得到明显改善(P<0.05),且治疗后观察组上述指标的改善程度明显优于对照组(P<0.05)。结论 银杏达莫注射液联合高压氧治疗高血压脑出血微创血肿清除术后具有较好的疗效,值得进行深入探讨。     

成年SD大鼠胃窦Cajal间质细胞分离、培养及鉴定

目的 探讨成年SD大鼠胃窦起搏细胞Cajal间质细胞（interstitial cells of cajal，ICC）的原代分离、培养及鉴定方法，为深入研究其生理功能提供条件。方法 8~9周龄SD成年大鼠，禁食24 h，乙醚吸入麻醉，颈椎脱臼处死。无菌条件下采用精细解剖方法快速取出胃窦平滑肌组织，将其剪成1~2 mm³小块后，使用Ⅱ型胶原酶消化法于37℃培养箱内消化60 min，离心后过200目筛，接种于DMEM/F12完全培养基（含5 ng/mL干细胞因子）中进行培养。用酪氨酸蛋白激酶受体c-kit特异性抗体免疫荧光染色鉴定细胞类型。结果 培养72 h后，于倒置显微镜下观察，可见细胞贴壁，呈不规则三角形、星形或梭形，有多个突起；随着培养时间的延长，各突起彼此相互连接形成网络；此原代培养细胞c-kit抗体免疫荧光染色呈阳性。结论 成功建立了一套由成年SD大鼠胃窦组织采用Ⅱ型胶原酶消化法原代培养ICC的方法，为ICC的生理功能、病理改变以及胃肠道生理与病理关系的研究奠定了基础。     

三物白散对Survivin-RNA基因沉默转染胃癌SGC-7901细胞凋亡、迁移的影响

目的 探讨三物白散对Survivin-RNA基因沉默转染胃癌SGC-7901细胞凋亡、迁移的影响。方法 将实验分成6组：空白对照组、LV-RNAi 组、Survivin-RNAi-LV组、空白对照+中药组、LV-RNAi+中药组、Survivin-RNAi-LV+中药组；采用流式细胞仪检测各组细胞的凋亡，划痕实验检测各组细胞的迁移能力。结果 细胞凋亡率：Survivin-RNAi-LV组明显高于空白对照组和LV-RNAi组（P<0.05）；Survivin-RNAi-LV+中药组与空白对照+中药组、LV-RNAi+中药组比较明显较高（P<0.05）；Survivin-RNAi-LV+中药组高于Survivin-RNAi-LV组，差异具有统计学意义（P<0.05）。胃癌细胞的24 h迁移率：Survivin-RNAi-LV组明显低于空白对照组和LV-RNAi组（P<0.05）；Survivin-RNAi-LV+中药组与空白对照+中药组、LV-RNAi+中药组比较，其结果明显低于后两组（P<0.05）；Survivin-RNAi -LV+中药组与Survivin-RNAi-LV组比较，细胞迁移率明显降低，差异有统计学意义（P<0.05）。结论 Survivin基因沉默转染，增强了三物白散诱导胃癌SGC-7901细胞凋亡和抑制其迁移的作用。     

投喂频率对尼罗系吉富罗非鱼幼鱼胃排空、生长性能和体组成的影响

通过胃排空试验与养殖试验研究了不同投喂频率对尼罗系吉富罗非鱼幼鱼的胃排空、生长性能以及体组成的影响.在试验开始时,观测尼罗系吉富罗非鱼幼鱼的胃内饲料排空情况,胃排空试验结果表明,胃排空率的最佳描述为平方根函数,胃内饲料在饱食投喂后15 h左右完全排空,达到投喂前水平,80％胃排空为9h,也就是投喂后大约9h恢复食欲.360尾试验鱼(初始体质量3.72 g)以不同的投喂频率(1d4次、1d3次、1d2次、2d4次、2d3次、2d2次)分组,每组设立3个平行组,随机养殖于18个网箱中,每箱养殖20尾鱼,按饱食量投饲膨化饲料.养殖期为6周.尼罗系吉富罗非鱼幼鱼在投喂频率为1d4次、1d3次和1d2次时特定生长率和饲料效率显著高于投喂频率为2d4次、2d3次和2d2次时(P＜0.05)；投喂频率为1d2次、2d4次、2d3次和2d2次时其摄食量显著低于1d4次和1d3次时(P＜0.05).随着投喂频率降低,鱼体水分含量逐步上升,脂肪和蛋白质含量逐步下降,其中1d4次、1d3次组鱼与2d2次组鱼有显著性差异(P＜0.05).各投喂频率组间的肝体指数无显著性差异(P＞0.05).3.7～48.0 g尼罗系吉富罗非鱼幼鱼的适宜投喂频率为1d2次,较2d2次、2d3次和2d4次时明显提高了生长速度和饲料效率,较1d3次、1d4次摄食量显著降低.2种试验结果较为一致.     

模拟胃环境下柚皮果胶对亚硝酸根的吸附动力学

以柚子白皮为原料制得果胶,在模拟人体胃环境下进行体外实验,研究柚皮果胶对NO_2~-的吸附效果,并进行动力学分析,同时以市售果胶为对照进行红外光谱分析.结果表明,柚子白皮果胶对NO_2~-的吸附效果与胃环境的pH值、NO_2~-质量浓度、模拟胃蠕动的时间和果胶添加量有关,果胶添加量为0.8g/L,pH值为1.5,NO_2~-质量浓度为30 mg/L,420 min可达吸附平衡,此时柚子白皮果胶对NO_2~-的吸附量为17.65 mg/g,去除率为56.21%.动力学研究表明,颗粒内扩散模型能够较好地拟合柚子白皮果胶对NO_2~-的吸附过程;红外光谱分析表明,O—H以及C=O(羧酸和/或酯)等基团参与了果胶吸附NO_2~-的反应.     

益气解毒法对胃癌术后辅助化疗患者生存质量的影响

目的 观察益气解毒法对胃癌术后辅助化疗患者生存质量的影响。方法 50例胃癌术后采用替吉奥和奥利沙铂（SOX方案）进行辅助化疗患者（观察组），配以益气解毒法中医治疗2个化疗周期，观察化疗药物的毒副反应、Karnofsky评分和QLQ-30评分，并与50例胃癌术后单用SOX方案进行辅助化疗患者（对照组）进行比较。结果 毒副反应：在贫血、恶心呕吐、周围神经毒性、口腔黏膜损害和肝功能损害方面，观察组级别明显低于对照组（P<0.05）；Karnofsky评分：观察组Karnofsky评分优于对照组（P<0.05）；QLQ-30评分：对照组治疗前后疲乏无力、恶心呕吐和食欲减退的评分较治疗前显著升高（P<0.05），观察组治疗后情绪功能和整体生活质量评分较治疗前显著升高（P<0.05），其余各项目治疗前后评分差异无统计学意义（P>0.05）。结论 益气解毒法可减轻胃癌术后辅助化疗毒副反应，提高患者生存质量。     

林芝松口蘑抗肿瘤组分的筛选

为筛选林芝松口蘑(Tricholoma matsutake)子实体中具抗肿瘤作用的组分,采用MTT法测定林芝松口蘑乙醇提取物的不同有机溶剂萃取分部对乳腺癌细胞(MCF-7)、胃癌细胞(SGC-7901)和肺癌细胞(A549)的体外抑制率。结果表明:林芝松口蘑乙醇提取物的抑癌活性物质主要集中在氯仿分部,100μg/mL作用48h,对MCF-7和SGC-7901的抑制率分别达到了64%和55%;乙醇提取物的各萃取分部对A549抑制效果较差,在实验浓度范围内抑制率均未超过25%。     

The effect of porcine hydrolysed collagen on gastric ulcer scores,gastric juice pH,gastrin and amino acid concentrations in horses

Gastric ulcers are common in horses. The purpose of this study was to test the effect of porcine hydrolysed collagen (PHC) on gastric ulcer scores and gastric juice pH in horses. We hypothesise that PHC-administration will result in improved gastric lesion scores and act synergistically with omeprazole to improve treatment efficacy. Thoroughbred horses (n = 10) were studied in a 2-period, 2-treatment crossover design, where the PHC (45 g) was administered twice daily. Horses were treated for 56 days. Gastroscopy was performed and gastric juice pH measured on Days 0, 14, 28, 42, 49 and 56. Nonglandular gastric ulcer number (NGN) and severity (NGS) and glandular ulcer number (GN) and glandular severity (GS) scores were assigned by an investigator masked to treatment and serum gastrin and amino acid concentrations. By Day 42, 2 weeks after discontinuing omeprazole treatment, NGN and NGS scores returned to pretreatment values and serum gastrin was higher when compared to values measured on Day 28. By Day 49, after the feed-deprivation period, NGN and NGS were similar to pretreatment values. By Day 56, mean NGN score was significantly lower in PHC-treated horses, compared to controls. Mean gastric juice pH significantly increased in both groups on Day 28 and the pH was significantly (P = 0.0127) higher in the PHC-treated horses. Serum amino acid concentrations were not significantly different 2 h after feeding PHC and hydroxyproline was not detected. Serum gastrin concentration did not increase 2 h after feeding in the PHC-fed horses. The PHC fed to horses enhanced the effects of omeprazole on increased gastric juice pH, inhibited gastrin secretion after feeding and resulted in fewer nonglandular ulcers after long-term feeding (56 days) in stall-confined horses undergoing intermittent feeding.     

Squamous gastric ulceration complicated by gastric stenosis in a foal

A 2-month-old Warmblood colt presented with recurrent colic and regurgitation. Gastroscopy, performed on several occasions, and barium-contrast radiography revealed severe squamous gastric ulceration and stenosis at the level of the margo plicatus. Treatment with omeprazole reduced the extent and severity of the gastric ulcers but did not affect the stenosis. The foal was euthanised because of a poor prognosis, and post-mortem examination confirmed the clinical diagnosis. Severe squamous gastric ulceration, granulation tissue formation and cicatrisation of deep gastric lesions were considered to have caused the stenosis. Gastroduodenal outflow obstruction is a recognised disorder in foals, but stenosis at the level of the margo plicatus has not been reported in foals or adult horses. To the authors' knowledge, this is the first case of severe squamous gastric ulceration, complicated by stenosis at the level of the margo plicatus, in a foal. Although rare, gastric stenosis should be considered in foals suffering recurrent colic and regurgitation.