虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究...虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究表明,虎杖可用于治疗炎症、糖尿病、痛风、癌症、病毒性疾病、细菌感染性疾病、神经退行性疾病等,尤其对冠状病毒引起的呼吸性疾病具有良好抑制作用。系统地总结了近几年虎杖的国内外研究文献,从化学成分及其药理作用的角度展开了综述,为虎杖药用资源进一步开发和应用提供依据,也为虎杖在抗击新型冠状病毒肺炎疫情中的应用提供科学依据。展开更多
The aromatic amino acids phenylalanine, tyrosine, and tryptophan in plants are not only essential components of protein synthesis, but also serve as precursors for a wide range of secondary metabolites that are import...The aromatic amino acids phenylalanine, tyrosine, and tryptophan in plants are not only essential components of protein synthesis, but also serve as precursors for a wide range of secondary metabolites that are important for plant growth as well as for human nutrition and health. The aromatic amino acids are synthesized via the shikimate pathway followed by the branched aromatic amino acids biosynthesis pathway, with chorismate serving as a major intermediate branch point metabolite. Yet, the regulation and coordination of synthesis of these amino acids are still far from being understood. Recent studies on these pathways identified a number of alternative cross-regulated biosynthesis routes with unique evolutionary origins. Although the major route of Phe and Tyr biosynthesis in plants occurs via the intermediate metabolite arogenate, recent studies suggest that plants can also synthesize phenylalanine via the intermediate metabolite phenylpyruvate （PPY）, similarly to many microorganisms. Recent studies also identified a number of transcription factors regulating the expression of genes encoding enzymes of the shikimate and aromatic amino acids pathways as well as of multiple secondary metabolites derived from them in Arabidopsis and in other plant species. .展开更多
The phytochemical progress on Angelica sinensis(Oliv.) Diels over the past decades is summarized. Since 1970 s, 165 chemical constituents, including phthalides, phenylpropanoids, terpenoids and essential oils, aromati...The phytochemical progress on Angelica sinensis(Oliv.) Diels over the past decades is summarized. Since 1970 s, 165 chemical constituents, including phthalides, phenylpropanoids, terpenoids and essential oils, aromatic compounds, alkaloids, alkynes, sterols, fatty acids, and polysaccharides have been isolated or detected from the various parts of the title plant.展开更多
文摘虎杖Polygoni Cuspidati Rhizoma et Radix在中国已有数千年治疗和预防疾病的历史,可用于改善腹泻、咳嗽、黄疸、炎症、闭经、烧伤和高脂血等症状。虎杖化学成分包括醌类、二苯乙烯类、黄酮类、苯丙素类等化合物。现代药理学和临床研究表明,虎杖可用于治疗炎症、糖尿病、痛风、癌症、病毒性疾病、细菌感染性疾病、神经退行性疾病等,尤其对冠状病毒引起的呼吸性疾病具有良好抑制作用。系统地总结了近几年虎杖的国内外研究文献,从化学成分及其药理作用的角度展开了综述,为虎杖药用资源进一步开发和应用提供依据,也为虎杖在抗击新型冠状病毒肺炎疫情中的应用提供科学依据。
文摘The aromatic amino acids phenylalanine, tyrosine, and tryptophan in plants are not only essential components of protein synthesis, but also serve as precursors for a wide range of secondary metabolites that are important for plant growth as well as for human nutrition and health. The aromatic amino acids are synthesized via the shikimate pathway followed by the branched aromatic amino acids biosynthesis pathway, with chorismate serving as a major intermediate branch point metabolite. Yet, the regulation and coordination of synthesis of these amino acids are still far from being understood. Recent studies on these pathways identified a number of alternative cross-regulated biosynthesis routes with unique evolutionary origins. Although the major route of Phe and Tyr biosynthesis in plants occurs via the intermediate metabolite arogenate, recent studies suggest that plants can also synthesize phenylalanine via the intermediate metabolite phenylpyruvate （PPY）, similarly to many microorganisms. Recent studies also identified a number of transcription factors regulating the expression of genes encoding enzymes of the shikimate and aromatic amino acids pathways as well as of multiple secondary metabolites derived from them in Arabidopsis and in other plant species. .
基金supported by the National Science & Technology Supporting Program for the 12th Five-year Plan(2011BAI05B02)the National Training Program of Innovation and Entrepreneurship for Undergraduates(201210731022)
文摘The phytochemical progress on Angelica sinensis(Oliv.) Diels over the past decades is summarized. Since 1970 s, 165 chemical constituents, including phthalides, phenylpropanoids, terpenoids and essential oils, aromatic compounds, alkaloids, alkynes, sterols, fatty acids, and polysaccharides have been isolated or detected from the various parts of the title plant.
