The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
Junhua Zheng - One of the best experts on this subject based on the ideXlab platform.
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analysis of phenolic compounds in rhubarbs using liquid chromatography coupled with electrospray ionization mass spectrometry
Journal of the American Society for Mass Spectrometry, 2007Co-Authors: Min Ye, Hubiao Chen, Junhua ZhengAbstract:Rhubarb is an important herbal medicine for the treatment of constipation, inflammation, and cancer. In this study, a facile method based on liquid chromatography coupled with electrospray ionization tandem mass spectrometry has been established for the analysis of bioactive phenolic compounds in rhubarbs. From six rhubarb species, official (Rheum Officinale, R. palmatum, and R. tanguticum) and unofficial (R. franzenbachii, R. hotaoense, and R. emodi), a total of 107 phenolic compounds were identified or tentatively characterized based on their mass spectra. These compounds include sennosides, anthraquinones, stilbenes, glucose gallates, naphthalenes, and catechins. Ion chromatograms for the identified compounds of different rhubarbs were then compared. Consistent with previous reports, sennosides and rhein were only detected in official rhubarbs. Unexpectedly, we found that R. Officinale contained very different phenolic compounds from the other two official species. Sennoside A, which has been considered as the major purgative component of rhubarb, was only detected in R. Officinale, while its close isomers were observed in R. palmatum and R. tanguticum. In addition, the predominant anthraquinone glycosides in R. Officinale were found to be rhein 8-O-glucoside and emodin 1-O-glucoside, whereas those in R. palmatum and R. tanguticum were rhein 1-O-glucoside and emodin 8-O-glucoside. Stilbenes, which are the major constituents of unofficial rhubarbs, were also different among the species. Our results clarify the chemical composition of rhubarbs comprehensively for the first time. Due to the significant differences in chemical components of rhubarbs, we suggest that different Rheum species be used separately in clinical practice.
Guo Dean - One of the best experts on this subject based on the ideXlab platform.
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Analysis of phenolic compounds in rhubarbs using liquid chromatography coupled with electrospray ionization mass spectrometry
journal of the american society for mass spectrometry, 2007Co-Authors: Ye Min, Han Jian, Chen Hubiao, Zheng Junhua, Guo DeanAbstract:Rhubarb is an important herbal medicine for the treatment of constipation, inflammation, and cancer. In this study, a facile method based on liquid chromatography coupled with electrospray ionization tandem mass spectrometry has been established for the analysis of bioactive phenolic compounds in rhubarbs. From six rhubarb species, official (Rheum Officinale, R. palmatum, and R. tanguticum) and unofficial (R. franzenbachii, R. hotwense, and R. emodi), a total of 107 phenolic compounds were identified or tentatively characterized based on their mass spectra. These compounds include sennosides, anthraquinones, stilbenes, glucose gallates, naphthalenes, and catechins. Ion chromatograms for the identified compounds of different rhubarbs were then compared. Consistent with previous reports, sennosides and rhein were only detected in official rhubarbs. Unexpectedly, we found that R. Officinale contained very different phenolic compounds from the other two official species. Sennoside A, which has been considered as the major purgative component of rhubarb, was only detected in R. Officinale, while its close isomers were observed in R. palmatum and R. tanguticum. In addition, the predominant anthraquinone glycosides in R. Officinale were found to be rhein 8-O-glucoside and emodin 1-O-glucoside, whereas those in R. palmatum and R. tanguticum were rhein 1-O-glucoside and emodin 8-O-glucoside. Stilbenes, which are the major constituents of unofficial rhubarbs, were also different among the species. Our results clarify the chemical composition of rhubarbs comprehensively for the first time. Due to the significant differences in chemical components of rhubarbs, we suggest that different Rheum species be used separately in clinical practice.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000243712200010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Biochemical Research MethodsChemistry, AnalyticalChemistry, PhysicalSpectroscopySCI(E)EIPubMed119ARTICLE182-911
Fang Jing - One of the best experts on this subject based on the ideXlab platform.
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Polysaccharides from Edible Fungi
Journal of Microbiology, 2008Co-Authors: Fang JingAbstract:Possessing unique physiological properties and skyey Officinal values,polysaecharides from edible fungi have become an existing hot spot in medicine research and development.Their chemical structure,extraction and sep- aration,Officinal values,applications and other aspects were fully summarized and prospected in this article.
Laurie Jolivet - One of the best experts on this subject based on the ideXlab platform.
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L’intégration des produits dermo-cosmétiques dans la prise en charge de pathologies cutanées courantes à l’officine : mise en place de fiches conseils
2017Co-Authors: Laurie JolivetAbstract:Le marché des produits dermo-cosmétiques est en constante évolution. Ces produits ne doivent pas être considérés comme de simples « adjuvants » à finalité esthétique. En effet, ils sont en mesure de participer efficacement à la prise en charge de certaines affections dermatologiques. Compte tenu de la large gamme de produits disponibles à l’officine, le choix du produit le plus adéquat pour répondre à de telles situations thérapeutiques peut relever d’un exercice délicat. Cette thèse a pour objectif d’apporter un outil utile et pratique à l’exercice Officinal en matière de conseils des produits dermo-cosmétiques. Un petit livret, au contenu synthétique, de format A5 dédié à l’usage Officinal a été élaboré. Il rassemble certaines dermatoses courantes au comptoir pour lesquelles le soin dermo-cosmétique est adapté. Cet outil se destine en priorité aux personnels en formation mais l’ensemble de l’équipe Officinale pourra y trouver un certain nombre de rappels ou de nouvelles pistes pour orienter ses conseils.
Jolivet Laurie - One of the best experts on this subject based on the ideXlab platform.
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L’intégration des produits dermo-cosmétiques dans la prise en charge de pathologies cutanées courantes à l’officine : mise en place de fiches conseils
HAL CCSD, 2017Co-Authors: Jolivet LaurieAbstract:Prix du Conseil régional de l’Ordre des pharmaciens Rhône-Alpes 2018.Le marché des produits dermo-cosmétiques est en constante évolution. Ces produits ne doivent pas être considérés comme de simples « adjuvants » à finalité esthétique. En effet, ils sont en mesure de participer efficacement à la prise en charge de certaines affections dermatologiques. Compte tenu de la large gamme de produits disponibles à l’officine, le choix du produit le plus adéquat pour répondre à de telles situations thérapeutiques peut relever d’un exercice délicat. Cette thèse a pour objectif d’apporter un outil utile et pratique à l’exercice Officinal en matière de conseils des produits dermo-cosmétiques. Un petit livret, au contenu synthétique, de format A5 dédié à l’usage Officinal a été élaboré. Il rassemble certaines dermatoses courantes au comptoir pour lesquelles le soin dermo-cosmétique est adapté. Cet outil se destine en priorité aux personnels en formation mais l’ensemble de l’équipe Officinale pourra y trouver un certain nombre de rappels ou de nouvelles pistes pour orienter ses conseils
