Acrylamide(AA)is ubiquitous in packaging materials,paints,cosmetics,food and drinking water.However,AA has obvious neurotoxicity,reproductive toxicity and carcinogenicity,which seriously endangers human health.As one ...Acrylamide(AA)is ubiquitous in packaging materials,paints,cosmetics,food and drinking water.However,AA has obvious neurotoxicity,reproductive toxicity and carcinogenicity,which seriously endangers human health.As one of precious traditional Chinese medicines,Gastrodia elata Bl.has been mainly used to lower blood pressure and resist myocardial ischemia.However,the antioxidant activity of Gastrodia elata Bl.on AA-induced DNA damage has not been reported.We found that AA(25,30 and 50 mg/kg)could cause DNA damage and the damage was time/dose dependent.After AA administration,Tail moment,micronuclei formation rate,8-OHdG and MDA level were significantly increased and SOD activity was decreased.Gastrodia elata Bl.decoction,gastrodin and vitamin C could reduce AA-induced DNA damage by decreasing AA-induced increment of tail moment and micronuclei formation rate.What’s more,Gastrodia elata Bl.decoction,gastrodin and vitamin C could lower 8-OHdG and MDA level and improve SOD activity.In conclusion,our research showed that Gastrodia elata Bl.decoction and gastrodin had protective effects on AA-induced DNA damage,and the potential protective mechanism might be related to anti-oxidative stress.展开更多
[Objectives] To screen the active components and core targets of Gastrodia elata Bl. based on network pharmacology, and further explore its potential molecular mechanism in preventing and treating chronic heart failur...[Objectives] To screen the active components and core targets of Gastrodia elata Bl. based on network pharmacology, and further explore its potential molecular mechanism in preventing and treating chronic heart failure (CHF).[Methods] The candidate active constituents of G. elata Bl. were screened by HERB, ETCM (Encyclopedia of Traditional Chinese Medicine) database, and bioinformatics analysis tool BATMAN-TCM platform, Swiss Target Prediction platform was used to predict compound targets, and CHF disease targets were searched in GeneCards and OMIM databases;the intersection targets were taken, and the String database and Cytoscape 3.10.0 software were used for protein-protein interaction (PPI) and topological analysis to obtain key active constituents and core target genes;the online tool bioinformatics platform was used for gene ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of common targets. Using the active constituent of G. elata Bl. as ligand and its core target as receptor, molecular docking visualization was carried out.[Results] 136 common targets of active constituents of G. elata Bl. and CHF were screened out, which mainly involved AGE-RAGE signaling pathway, lipid and atherosclerosis, interleukin-17 signaling pathway, non-alcoholic fatty liver, diabetic cardiomyopathy, cancer and other signaling pathways. The core target proteins mainly included albumin, catalytic subunit α activated by protein kinase CAMP, insulin gene, interleukin-1β, tumor necrosis factor, estrogen receptor 1, interferon γ, etc. The results of molecular docking showed that the ligand of the compound had good affinity with the target receptor.[Conclusions] G. elata Bl. prevents and treats CHF through multiple components, multiple targets, and multiple pathways. The potential mechanism of G. elata Bl. in treating CHF was preliminarily explored, providing a certain theoretical basis for subsequent research on its pharmacological material basis in treating CHF.展开更多
Gastrodia elata Bl.is a traditional Chinese herbal medicine with special pharmacological effects on headache and numbness.However,its wild sources are now in short supply because of over-excavation.A total of 14 endop...Gastrodia elata Bl.is a traditional Chinese herbal medicine with special pharmacological effects on headache and numbness.However,its wild sources are now in short supply because of over-excavation.A total of 14 endophytic fungi were isolated from Gastrodia elata Bl collected from Yinjing,in which 10 strains were identified,including Neonectria,Ascomycota,Fusarium,Oidiodendron and Dothiorella.All crude extracts showed some degrees of antioxidant activities by T-AOC method and DPPH methods,especially those from Oidiodendron GeR6 and Ascomycota sp.GeR2,which might be attributed due to their high phenolic contents.However,only Oidiodendron GeR6 contained gastrodin(39.2μg/g)as the host plant in the crude extracts.In conclusion,the notable activities of GeR6 indicated its medical use as a natural antioxidant agent,as well as substitutable use for Gastrodia elata Bl.in the future.展开更多
A genomic DNA containing 5'-upstream region and complete open reading frame of a Gastrodia antifungal protein was isolated by screening of a genomic library from Gastrodia elata B1. To investigate the promoter act...A genomic DNA containing 5'-upstream region and complete open reading frame of a Gastrodia antifungal protein was isolated by screening of a genomic library from Gastrodia elata B1. To investigate the promoter activity, the 5'-flanking region - 1 157 lip upstream from the putative transcription start site was fused to the coding sequence of beta-glucuronidase (GUS) gene and transformed into Nicotiana tabacum. The strongest GUS activity was detected in the roots of transgenic tobacco, followed by stems. The leaves only showed a low GUS activity. Furthermore, the promoter established inducible expression pattern in transgenic tobacco upon fungus Trichoderma viride inoculation and jasmonic acid and salicylic acid treatments.展开更多
文摘Acrylamide(AA)is ubiquitous in packaging materials,paints,cosmetics,food and drinking water.However,AA has obvious neurotoxicity,reproductive toxicity and carcinogenicity,which seriously endangers human health.As one of precious traditional Chinese medicines,Gastrodia elata Bl.has been mainly used to lower blood pressure and resist myocardial ischemia.However,the antioxidant activity of Gastrodia elata Bl.on AA-induced DNA damage has not been reported.We found that AA(25,30 and 50 mg/kg)could cause DNA damage and the damage was time/dose dependent.After AA administration,Tail moment,micronuclei formation rate,8-OHdG and MDA level were significantly increased and SOD activity was decreased.Gastrodia elata Bl.decoction,gastrodin and vitamin C could reduce AA-induced DNA damage by decreasing AA-induced increment of tail moment and micronuclei formation rate.What’s more,Gastrodia elata Bl.decoction,gastrodin and vitamin C could lower 8-OHdG and MDA level and improve SOD activity.In conclusion,our research showed that Gastrodia elata Bl.decoction and gastrodin had protective effects on AA-induced DNA damage,and the potential protective mechanism might be related to anti-oxidative stress.
文摘[Objectives] To screen the active components and core targets of Gastrodia elata Bl. based on network pharmacology, and further explore its potential molecular mechanism in preventing and treating chronic heart failure (CHF).[Methods] The candidate active constituents of G. elata Bl. were screened by HERB, ETCM (Encyclopedia of Traditional Chinese Medicine) database, and bioinformatics analysis tool BATMAN-TCM platform, Swiss Target Prediction platform was used to predict compound targets, and CHF disease targets were searched in GeneCards and OMIM databases;the intersection targets were taken, and the String database and Cytoscape 3.10.0 software were used for protein-protein interaction (PPI) and topological analysis to obtain key active constituents and core target genes;the online tool bioinformatics platform was used for gene ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of common targets. Using the active constituent of G. elata Bl. as ligand and its core target as receptor, molecular docking visualization was carried out.[Results] 136 common targets of active constituents of G. elata Bl. and CHF were screened out, which mainly involved AGE-RAGE signaling pathway, lipid and atherosclerosis, interleukin-17 signaling pathway, non-alcoholic fatty liver, diabetic cardiomyopathy, cancer and other signaling pathways. The core target proteins mainly included albumin, catalytic subunit α activated by protein kinase CAMP, insulin gene, interleukin-1β, tumor necrosis factor, estrogen receptor 1, interferon γ, etc. The results of molecular docking showed that the ligand of the compound had good affinity with the target receptor.[Conclusions] G. elata Bl. prevents and treats CHF through multiple components, multiple targets, and multiple pathways. The potential mechanism of G. elata Bl. in treating CHF was preliminarily explored, providing a certain theoretical basis for subsequent research on its pharmacological material basis in treating CHF.
基金The Foundation of Industrialization Demonstration and Promotion of Standardized Planting of Dominant Species of Gastrodia elata in Yingjing(General Service Station)the Foundation of Sichuan Sci ence and Technology Plan Project(Grant No.2019YFS0170).
文摘Gastrodia elata Bl.is a traditional Chinese herbal medicine with special pharmacological effects on headache and numbness.However,its wild sources are now in short supply because of over-excavation.A total of 14 endophytic fungi were isolated from Gastrodia elata Bl collected from Yinjing,in which 10 strains were identified,including Neonectria,Ascomycota,Fusarium,Oidiodendron and Dothiorella.All crude extracts showed some degrees of antioxidant activities by T-AOC method and DPPH methods,especially those from Oidiodendron GeR6 and Ascomycota sp.GeR2,which might be attributed due to their high phenolic contents.However,only Oidiodendron GeR6 contained gastrodin(39.2μg/g)as the host plant in the crude extracts.In conclusion,the notable activities of GeR6 indicated its medical use as a natural antioxidant agent,as well as substitutable use for Gastrodia elata Bl.in the future.
文摘A genomic DNA containing 5'-upstream region and complete open reading frame of a Gastrodia antifungal protein was isolated by screening of a genomic library from Gastrodia elata B1. To investigate the promoter activity, the 5'-flanking region - 1 157 lip upstream from the putative transcription start site was fused to the coding sequence of beta-glucuronidase (GUS) gene and transformed into Nicotiana tabacum. The strongest GUS activity was detected in the roots of transgenic tobacco, followed by stems. The leaves only showed a low GUS activity. Furthermore, the promoter established inducible expression pattern in transgenic tobacco upon fungus Trichoderma viride inoculation and jasmonic acid and salicylic acid treatments.
