目的探讨合生元制剂治疗慢性功能性便秘的临床疗效,以及治疗前后肠道菌群的变化。方法选取2016年7月—2017年3月同济大学附属第十人民医院收治的慢性功能性便秘患者24例为研究对象。患者均采用合生元制剂治疗1个月,记录治疗前后排便习...目的探讨合生元制剂治疗慢性功能性便秘的临床疗效,以及治疗前后肠道菌群的变化。方法选取2016年7月—2017年3月同济大学附属第十人民医院收治的慢性功能性便秘患者24例为研究对象。患者均采用合生元制剂治疗1个月,记录治疗前后排便习惯和不良反应发生情况。留取治疗前后新鲜粪便样本,采用16S r RNA细菌检测技术鉴定肠道菌群,并对治疗前后自身对照的两组样本进行菌群差异分析。结果慢性功能性便秘患者经合生元治疗后排便次数增加,腹胀、食欲不振、焦虑情绪、泻剂依赖性发生率降低(P<0.05)。治疗后Faecalibacterium、Prevotella_9、Subdoligranulum、Ruminococcaceae_UCG-002、Bacillus、Roseburia、Pseudobutyrivibrio、Enterobacteriaceae_unclassified、Ruminococcaceae_UCG-014、[Eubacterium]_coprostanoligenes_group丰度较治疗前增高,Bacteroides、Christensenellaceae_R-7_group、Parabacteroides、Alistipes、Escherichia-Shigella、Blautia、Lachnoclostridium、Phascolarctobacterium、Erysipelotrichaceae_UCG-003、Ruminococcus_2、Dialister丰度较治疗前降低。结论合生元可增加慢性功能性便秘患者排便次数,改善临床症状及肠道菌群结构,可成为一种新的临床治疗策略。展开更多
To obtain the maximum angiotensin-I converting enzyme(ACE) inhibitory activity, the protein hydrolysis conditions of the jellyfish Rhopilema hispidum were optimized using response surface methodology(RSM). Trypsin was...To obtain the maximum angiotensin-I converting enzyme(ACE) inhibitory activity, the protein hydrolysis conditions of the jellyfish Rhopilema hispidum were optimized using response surface methodology(RSM). Trypsin was selected to produce R. hispidum protein hydrolysates(RPH) with ACE inhibitory activity. The optimal parameters for producing protein hydrolysates with the highest ACE inhibitory activity were as follows: hydrolysis time 5 h, hydrolysis temperature 50℃, and the enzyme-to-substrate ratio 6%. Under these conditions, the ACE inhibitory rate of RPH could reach 64.28% ± 5.72%. In addition, RPH contained high levels of Gly, Glu, Pro, Ala, Asp and Arg, with a molecular weight distribution range of 0.32–6.84 kDa. The following three novel ACE inhibitory peptides were isolated and identified: Ile-Gly-Glu-Thr-Gly-Pro, Gly-Ala-Thr-Gly-Pro-Ala-Gly-Tyr-Val and Gly-AlaPhe-Gly-Pro-Gly-Gly-Leu-Val-Gly-Arg-Pro. The IC_(50) values of the ACE inhibitory activity of these three purified peptides were 19.07, 27.42 and 31.26 μmol L^(-1), respectively. These results suggested that proteins and peptides isolated from R. hispidum could be utilized as antihypertensive functional food sources.展开更多
文摘目的探讨合生元制剂治疗慢性功能性便秘的临床疗效,以及治疗前后肠道菌群的变化。方法选取2016年7月—2017年3月同济大学附属第十人民医院收治的慢性功能性便秘患者24例为研究对象。患者均采用合生元制剂治疗1个月,记录治疗前后排便习惯和不良反应发生情况。留取治疗前后新鲜粪便样本,采用16S r RNA细菌检测技术鉴定肠道菌群,并对治疗前后自身对照的两组样本进行菌群差异分析。结果慢性功能性便秘患者经合生元治疗后排便次数增加,腹胀、食欲不振、焦虑情绪、泻剂依赖性发生率降低(P<0.05)。治疗后Faecalibacterium、Prevotella_9、Subdoligranulum、Ruminococcaceae_UCG-002、Bacillus、Roseburia、Pseudobutyrivibrio、Enterobacteriaceae_unclassified、Ruminococcaceae_UCG-014、[Eubacterium]_coprostanoligenes_group丰度较治疗前增高,Bacteroides、Christensenellaceae_R-7_group、Parabacteroides、Alistipes、Escherichia-Shigella、Blautia、Lachnoclostridium、Phascolarctobacterium、Erysipelotrichaceae_UCG-003、Ruminococcus_2、Dialister丰度较治疗前降低。结论合生元可增加慢性功能性便秘患者排便次数,改善临床症状及肠道菌群结构,可成为一种新的临床治疗策略。
基金supported by the National Natural Science Foundation of China (Nos. 81230057, 81372615, 81472262, 41306133 and 81200264)the Emerging Cutting-Edge Technology Joint Research projects of Shanghai (No. SHDC12012106)+6 种基金the Tongji University Subject Pilot Program (No. 162385)partly funded by the Shanghai Municipal Health and Family Planning Commission Project (Nos. 201540027 and 20174Y0236)the seed fund program of Shanghai University of Medicine & Health Sciences (No. HSMF-17-22-031)Excellent Young Medical Expert of Shanghai (No. 2017YQ048)Shangha Natural Science Foundation (No. 18ZR1431700)China Postdoctoral Science Foundation (No. 2017M610278)the Key Research and Developing Plan of Shandong Province (No. 2015GSF115015)
文摘To obtain the maximum angiotensin-I converting enzyme(ACE) inhibitory activity, the protein hydrolysis conditions of the jellyfish Rhopilema hispidum were optimized using response surface methodology(RSM). Trypsin was selected to produce R. hispidum protein hydrolysates(RPH) with ACE inhibitory activity. The optimal parameters for producing protein hydrolysates with the highest ACE inhibitory activity were as follows: hydrolysis time 5 h, hydrolysis temperature 50℃, and the enzyme-to-substrate ratio 6%. Under these conditions, the ACE inhibitory rate of RPH could reach 64.28% ± 5.72%. In addition, RPH contained high levels of Gly, Glu, Pro, Ala, Asp and Arg, with a molecular weight distribution range of 0.32–6.84 kDa. The following three novel ACE inhibitory peptides were isolated and identified: Ile-Gly-Glu-Thr-Gly-Pro, Gly-Ala-Thr-Gly-Pro-Ala-Gly-Tyr-Val and Gly-AlaPhe-Gly-Pro-Gly-Gly-Leu-Val-Gly-Arg-Pro. The IC_(50) values of the ACE inhibitory activity of these three purified peptides were 19.07, 27.42 and 31.26 μmol L^(-1), respectively. These results suggested that proteins and peptides isolated from R. hispidum could be utilized as antihypertensive functional food sources.
