Alzheimer disease(AD) as worldwide progressive neurodegenerative disease is prevalent disease among elderly population. Due to limitation in chemical drugs along with their adverse effects of these treatments, researc...Alzheimer disease(AD) as worldwide progressive neurodegenerative disease is prevalent disease among elderly population. Due to limitation in chemical drugs along with their adverse effects of these treatments, research for finding more effective natural drugs, is one of interesting subjects among the scientists. Melissa officinalis(M. officinalis) has a long history of use in treatment of nervous system diseases. This review article evaluates the potency of M. officinalis in treatment of AD by review of experimental and clinical documents on the efficacy, safety and its mechanisms of action in management of AD. The information is extracted from electronic resources(PubMed, Wiley, Springer and Science Direct), English and Persian scientific books. In spite of different scientific and non-scientific reports on the use of M. officinalis and its main component of rosmarinic acid in neurodegenerative diseases, there is only one clinical trial on the efficacy of M. officinalis ethanol extract in management of AD. Different mechanisms of action for M. officinalis, including inhibitory effects against amyloid beta, reactive oxygen species, and acetylcholine esterase, are involved. Larger clinical trials are recommended to confirm the efficacy and safety of M. officinalis extracts in treatment of AD patients.展开更多
The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the paper has been submitted to other journals at the same time. The scientific commu...The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the paper has been submitted to other journals at the same time. The scientific community takes a very strong view on this matter, and the International Journal of Organic Chemistry treats all unethical behavior seriously. This paper published in Vol. 2 No.2 166-171, 2012, has been removed from this site.展开更多
利用超高效液相色谱-四极杆-飞行时间高分辨质谱(ultra performance liquid chromatography-quadrupole-time of flight high resolution mass spectrometry,UPLC-Q-TOF-HRMS)技术结合所有理论碎片离子的连续窗口采集(sequential window...利用超高效液相色谱-四极杆-飞行时间高分辨质谱(ultra performance liquid chromatography-quadrupole-time of flight high resolution mass spectrometry,UPLC-Q-TOF-HRMS)技术结合所有理论碎片离子的连续窗口采集(sequential window acquisition of all theoretical fragment ions,SWATH)模式,采用特征二级碎片离子峰面积进行外标法定量,建立了一种快速、灵敏同时测定柠檬中13种类黄酮、8种香豆素和呋喃香豆素、2种类柠檬苦素和3种酚酸物质的方法,并对6个品种柠檬果实的果皮、果肉和果汁中这26种生物活性成分进行了定量分析。方法学考察结果显示,该方法具有良好的线性关系、灵敏度、精密度和准确度:线性方程的相关系数均在0.99以上;定量限最低可达0.001μg/L;日间相对标准偏差和日内相对标准偏差分别不超过5.33%和6.39%;加标回收率为(84.27±3.02)%~(114.25±1.77)%。定量结果表明,不同品种与不同部位的柠檬样品中生物活性物质的含量存在较大差异。26种物质在6种柠檬果实中的含量排序为:柯尔提粗柠檬>里斯本柠檬>尤力克柠檬>美国粗柠檬>扁红柠檬>北京柠檬;果皮中的含量显著高于果肉和果汁,所测类黄酮的总含量在26种生物活性成分中占比最高,是柠檬生物活性成分的主要来源之一,其中橙皮苷的含量居首位;柠檬油素、橙皮油内酯、伞形花内酯是柠檬果实中含量较高的香豆素类物质。该研究建立的同时测定26种生物活性成分含量的方法适用于柠檬果实不同部位多类型生物活性物质的筛查和定量分析,方法灵敏、可靠、具有通用性,可用于植物源性产品中多类型生物活性物质的分析研究。展开更多
文摘Alzheimer disease(AD) as worldwide progressive neurodegenerative disease is prevalent disease among elderly population. Due to limitation in chemical drugs along with their adverse effects of these treatments, research for finding more effective natural drugs, is one of interesting subjects among the scientists. Melissa officinalis(M. officinalis) has a long history of use in treatment of nervous system diseases. This review article evaluates the potency of M. officinalis in treatment of AD by review of experimental and clinical documents on the efficacy, safety and its mechanisms of action in management of AD. The information is extracted from electronic resources(PubMed, Wiley, Springer and Science Direct), English and Persian scientific books. In spite of different scientific and non-scientific reports on the use of M. officinalis and its main component of rosmarinic acid in neurodegenerative diseases, there is only one clinical trial on the efficacy of M. officinalis ethanol extract in management of AD. Different mechanisms of action for M. officinalis, including inhibitory effects against amyloid beta, reactive oxygen species, and acetylcholine esterase, are involved. Larger clinical trials are recommended to confirm the efficacy and safety of M. officinalis extracts in treatment of AD patients.
文摘The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the paper has been submitted to other journals at the same time. The scientific community takes a very strong view on this matter, and the International Journal of Organic Chemistry treats all unethical behavior seriously. This paper published in Vol. 2 No.2 166-171, 2012, has been removed from this site.
文摘利用超高效液相色谱-四极杆-飞行时间高分辨质谱(ultra performance liquid chromatography-quadrupole-time of flight high resolution mass spectrometry,UPLC-Q-TOF-HRMS)技术结合所有理论碎片离子的连续窗口采集(sequential window acquisition of all theoretical fragment ions,SWATH)模式,采用特征二级碎片离子峰面积进行外标法定量,建立了一种快速、灵敏同时测定柠檬中13种类黄酮、8种香豆素和呋喃香豆素、2种类柠檬苦素和3种酚酸物质的方法,并对6个品种柠檬果实的果皮、果肉和果汁中这26种生物活性成分进行了定量分析。方法学考察结果显示,该方法具有良好的线性关系、灵敏度、精密度和准确度:线性方程的相关系数均在0.99以上;定量限最低可达0.001μg/L;日间相对标准偏差和日内相对标准偏差分别不超过5.33%和6.39%;加标回收率为(84.27±3.02)%~(114.25±1.77)%。定量结果表明,不同品种与不同部位的柠檬样品中生物活性物质的含量存在较大差异。26种物质在6种柠檬果实中的含量排序为:柯尔提粗柠檬>里斯本柠檬>尤力克柠檬>美国粗柠檬>扁红柠檬>北京柠檬;果皮中的含量显著高于果肉和果汁,所测类黄酮的总含量在26种生物活性成分中占比最高,是柠檬生物活性成分的主要来源之一,其中橙皮苷的含量居首位;柠檬油素、橙皮油内酯、伞形花内酯是柠檬果实中含量较高的香豆素类物质。该研究建立的同时测定26种生物活性成分含量的方法适用于柠檬果实不同部位多类型生物活性物质的筛查和定量分析,方法灵敏、可靠、具有通用性,可用于植物源性产品中多类型生物活性物质的分析研究。