从价值观谈国内尸体供体缺乏之道德难题

器官移植为许多脏器受损的患者带来了重生的希望,但由于传统儒家的"孝"、"悌"观念及其他因素等的影响,导致现实中的器官供体来源严重缺乏。因此,需要挖掘传统价值观中共同的认同点,让合理的价值观念跟上时代的步伐,使个人价值观和社会价值观协调统一,以利于解决器官供体缺乏的难题,从而推进医学发展,维护人类生命健康

暹罗鳄多肽粉提高机体免疫力及抗疲劳的效应

为研究暹罗鳄多肽粉对小鼠免疫力及抗疲劳效应的影响,对小鼠的免疫能力和相关血清指标进行了测定,同时也对小鼠的运动能力及疲劳代谢指标进行了测定.实验结果显示:暹罗鳄多肽粉可以促进小鼠胸腺和脾脏的生长,免疫力得到提高.相对于对照组小鼠,暹罗鳄多肽粉组小鼠血清中的总蛋白、血钙、白蛋白含量升高(p<0.05),谷丙转氨酶(ALT)的活力和血糖浓度下降(p<0.05).小鼠爬绳及负重游泳实验发现服用了暹罗鳄多肽粉的小鼠垂直爬绳时间和负重游泳时间均高于对照组的(p<0.01),小鼠的耐力增强.进一步通过建立抗疲劳小鼠力竭游泳模型研究了暹罗鳄多肽粉的抗疲劳动物学功效,结果显示相对于对照组,暹罗鳄多肽粉组小鼠血液中尿素氮(BUN)和乳酸(LA)的含量以及乳酸脱氢酶(LDH)的酶活力均降低(p<0.05),而超氧化物歧化酶(SOD)的酶活力升高(p<0.05).综上结果表明暹罗鳄多肽粉可能有保肝护肝,提高肌体免疫力以及抗疲劳等功效.福建省自然科学基金项目(2016J05105);;广东省自然科学基金博士启动项目(2016A030310374);;厦门大学生命科学学院-福建鼍龙鳄鱼生物制品研发协同创新中心项目(XDHT2017004C

茵蒲灌肠液联合美沙拉秦肠溶片治疗轻中度溃疡性结肠炎的临床效果

目的观察茵蒲灌肠液联合美沙拉秦肠溶片治疗轻中度溃疡性结肠炎(UC)的临床效果。方法选取2016年1月—2017年12月轻中度UC患者60例,按治疗方法不同分为对照组和观察组,每组30例。对照组给予美沙拉秦肠溶片,观察组在对照组基础上给予茵蒲灌肠液保留灌肠。比较2组治疗后的临床症状、结肠镜下黏膜改变、不良反应情况以及总体疗效。结果治疗后,观察组的临床症状缓解率、结肠镜下黏膜修复有效率以及总体疗效有效率高于对照组(P0.05)。结论茵蒲灌肠液联合美沙拉秦肠溶片对轻中度UC的临床症状缓解、结肠镜下黏膜修复程度均具有较好的效果,且不增加不良反应的发生率。福建中医药大学校管课题(XB2016066

“动物酵素营养液”在家禽饲养上应用效果

用2 862羽肉鸡与4 000羽蛋鸡进行试验,探讨“京福龙“动物酵素对肉鸡生长和蛋鸡产蛋情况的影响。结果表明与对照组相比,饲喂添加“京福龙“动物酵素的肉鸡出栏重平均每只较对照组增长9.45%,料肉比降低0.21,死亡率降低2.2%,蛋重的平均增长率较对照组增长1%,产蛋率增加了5.0%,死亡率降低6%,可见“京福龙“动物酵素能降低家禽的疾病发生情况和促进肉鸡生长、蛋鸡的产蛋率

动物酵素营养液对繁殖母猪生产性能的研究

为验证“动物酵素营养液“对母猪生产性能的影响,选120头母猪进行饲养试验。结果表明,“动物酵素营养液“能够提高母猪群产仔率、成活率,平均窝产仔最多12.5头,成活率最高可达98%~99%,仔猪出生重为1.60千克/头,断奶后仔猪体重为11.2千克/头。猪无腹泻现象,长势快,皮毛光滑,整齐度提高,母猪妊娠期正常,产程时间少,无三炎,母猪健康,可在产后3~4天开始发情,配种率与受胎率均为100%,每年可产2.4窝,每头母猪与对照组的经济差额为4 520元

动物酵素营养液对保育猪呼吸道疾病影响的研究

本试验选择28日龄的仔猪,喂养动物酵素营养液至70日龄,结果表明:酵素组的仔猪中,康复率为75%,28.6%完全康复,57.1%转为轻微患病,14.3%处于严重状态,在对照组中只有40%完全康复,严重时有1头死亡,4头转为轻微患病,说明动物酵素营养液对仔猪呼吸道疾病有较好的促进康复的效果

基于生物质谱技术的磷酰化修饰策略在多肽测序中的应用

该文建立了一种利用磷酰化修饰结合电喷雾质谱(ESI-Q-TOF)测定多肽氨基酸序列的有效方法。利用Atherton-Todd反应,以二丙基亚磷酰酯(DPP)为磷酰化试剂,应用生物质谱技术,对磷酰化修饰后的5种模型肽的磷酰化反应情况进行了系统研究,考察了磷酰化肽的二级质谱特征,并与未经磷酰化反应的肽的二级质谱特征对比。结果表明,经过磷酰化修饰后,肽的二级质谱中的a1离子信号强度明显增加,可以准确鉴定其N端氨基酸;b系列离子信息完整,信号强度增强,使得多肽C ID测序的谱图简单、清晰,有利于肽的氨基酸序列的测定;赖氨酸(K,128.10 u)和谷氨酰胺(Q,128.13 u)两种氨基酸质荷比相近,由于二者磷酰化修饰后的差异性,使其得到准确区分。经过5种已知氨基酸序列的模型肽的磷酰化后结合质谱技术进行氨基酸序列测定验证,结果表明该方法简单、快速、准确,提高了利用质谱技术进行多肽测序的准确度和灵敏度,可为蛋白质组学研究提供有效的技术手段

Effect of geniposide on the lipid metabolism and inflammatory injury of nonalcoholic fatty liver disease in the hamster

目的:观察栀子苷对高脂饮食诱导的金黄地鼠非酒精性脂肪性肝病模型脂质代谢、肝组织病理变化及炎症损伤的影响,并与栀子进行比较,以明确栀子抗脂肪肝作用的效应成分。方法:24只雄性金黄地鼠按随机数字表法分为正常组、模型组、栀子组和栀子苷组。实验后观察肝组织病理学变化,并检测肝组织Tg含量、血清Tg、CHO含量及AlT、AST活性。结果:与模型组比较,栀子组、栀子苷组肝Tg含量、血清Tg、CHO含量及AlT、AST活性均显著降低,且栀子苷对AlT、AST活性的降低作用优于栀子。结论:栀子苷与栀子对高脂饮食诱导的地鼠脂肪肝均有显著干预作用,且栀子苷抗炎症损伤作用优于栀子。Objective: To observe geniposide's effect on lipid metabolism,hepatic tissue pathological change and inflammatory injury of golden hamsters with nonalcoholic fatty liver disease( NAFLD),caused by high fat diet.Compare the geniposide's effect with gardenia to make clear the effective components in Gardenia that can resist fatty liver.Methods: 24 male golden hamsters were averagely divided into control group,model group,gardenia group and geniposide group.The experiment was based on building the model,and then observe hamsters 'general condition and pathological change of hepatic tissue,examine the content of hepatic tissue TG,serum TG,CHO and the activity of ALT,AST.Results: In gardenia group and gardenoside group,The content of hepatic tissue TG,serum TG,CHO and the activity of ALT,AST are significantly lower than the model group.Besides,gardenoside can lower the activity of ALT,AST better than gardenia.Conclusion: Both gardenoside and gardenia have notable intervention effects on hamsters' NAFLD caused by HFD and gardenoside have better effects on resisting inflammatory injury than gardenia,which suggested that gardenoside was the primary effective component in resisting NAFLD.国家自然科学基金面上项目(81274155); 厦门市重大科技计划项目(3502Z20100006

Jiangzhi and Hepatoprotective effect of salidroside on nonalcoholic fatty liver disease

目的:探讨中药红景天的主要成分红景天苷对高脂饮食诱导的金黄地鼠非酒精性脂肪性肝炎(nASH)的干预作用。方法:18只雄性金黄地鼠随机分成正常组、模型组和红景天苷组,除正常组外,其余两组均给予高脂饮食喂养6周以复制nASH模型;造模第3周起,红景天苷组给予红景天苷药液灌胃4周。6周后处死地鼠,收集标本,检测肝组织甘油三酯(Tg)含量,血清天门冬氨酸氨基转移酶(AST)活性,对肝组织进行HE染色。结果:红景天苷能明显降低肝组织Tg含量及血清AST活性,改善肝组织脂肪变性的病理状态。结论:红景天苷具有显著的抗nASH病理损伤的药理效应。Objective:To explore the intervening effect of the main components of the rhodiola on the nonalcoholic fatty liver disease(NAFLD) for male golden hamsters induced by high-fat diets.Methods:Total 18 male golden hamsters were divided into control group,model group and salidroside group randomly.Male golden hamsters in the model group and salidroside group were fed with high fat diet for 6 weeks to reproduce NAFLD model.After the second week of feeding,male golden hamsters in the salidroside group were given a gavage of salidroside.All male golden hamsters were put to death at the 6 weeks and samples were collected.Hepatic tissue TG contents were detected.Serum AST activities were determined.Hepatic tissues were detected by HE staining.Results:Salidroside decreased hepatic tissue TG contents,serum AST activities and reduced the fatty degeneration in hepatocytes significantly.Conclusion:Salidroside has conspicuous pharmacological effect on the nonalcoholic fatty liver disease in male golden hamsters.国家自然科学基金(No.81274155); 厦门市重大科技计划项目(No.3502Z20100006); 横向课题(No.XDHT2011366A)~

Phytoplankton biomarkers in surface seawater from the northern South China Sea in summer 2009 and their potential as indicators of biomass/community structure

生物标志物已被广泛应用于重建浮游植物生产力和群落结构变化。该方法假设之一是生标的含量可以反映表层海水的浮游植物生物量,但这个假设还缺乏现场观测的充分验证。对2009年冬季南海北部表层海水颗粒物中主要生标做了分析,利用其含量及比值研究浮游植物的生物量及群落结构的分布。生标含量表明硅藻、甲藻、颗石藻的高值区位于珠江口南部及广东沿岸,在陆坡区也有高值。生标比值显示硅藻在3个类群中的相对比例最高。其中,甲藻/硅藻比值高值区位于陆坡区,这与大洋水(黑潮)的入侵,带来大量暖水性甲藻有很大关系;颗石藻/硅藻比值总体趋势与生物量的分布相反,在近岸少数站位有高值,向外海逐渐增加,主要是因为颗石藻更适于寡营养盐的环境。生标结果所指示的生物量及群落结构的空间分布与前人的调查结果类似,为利用生标重建此区域的浮游植物生产力和群落结构变化提供了依据。Biomarkers have been widely used to reconstruct phytoplankton productivity based on the assumption that biomarker contents could reflect phytoplankton productivity in the surface seawater.However,this hypothesis has not been validated with modern survey.In this study,the contents and ratios of three phytoplankton biomarkers in the surface seawater of the northern South China Sea in winter 2009 were analyzed,to indicate spatial distributions of phytoplankton biomass and community structure.The results show high values for diatoms,dinoflagellates and coccolithophorids near the Pearl River Estuary and Guangdong coastal areas.The community structure indicates diatoms are the dominant phytoplankton species in winter.High values of dinoflagellate/diatom ratio occur near the slope area owing to intrusion of the Kuroshio,which favors the growth of dinoflagellates.The coccolithophorid/diatom ratio displays an increasing trend from the Pearl River Estuary to offshore region due to the advantage of coccolithophorids in oligotrophic environment,which is opposite to the productivity pattern of all biomarkers.These results are consistent with previous studies using phytoplankton cell and pigments,which provides support for the use of biomarker to reconstruct phytoplankton productivity and community structure in the SCS.国家重点基础研究发展计划项目(2007CB815934、2009CB421201);国家自然科学基金项目(40776029