Antitussive and expectorant activities of licorice and its major compounds

[Display omitted] Licorice has been used as an antitussive and expectorant herbal medicine for a long history. This work evaluated the activities of 14 major compounds and crude extracts of licorice, using the classical ammonia-induced cough model and phenol red secretion model in mice. Liquiritin a...

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Veröffentlicht in:Bioorganic & medicinal chemistry 2018-01, Vol.26 (1), p.278-284
Hauptverfasser: Kuang, Yi, Li, Bin, Fan, Jingran, Qiao, Xue, Ye, Min
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creator Kuang, Yi
Li, Bin
Fan, Jingran
Qiao, Xue
Ye, Min
description [Display omitted] Licorice has been used as an antitussive and expectorant herbal medicine for a long history. This work evaluated the activities of 14 major compounds and crude extracts of licorice, using the classical ammonia-induced cough model and phenol red secretion model in mice. Liquiritin apioside (1), liquiritin (2), and liquiritigenin (3) at 50 mg/kg (i.g.) could significantly decrease cough frequency by 30–78% (p 
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This work evaluated the activities of 14 major compounds and crude extracts of licorice, using the classical ammonia-induced cough model and phenol red secretion model in mice. Liquiritin apioside (1), liquiritin (2), and liquiritigenin (3) at 50 mg/kg (i.g.) could significantly decrease cough frequency by 30–78% (p &lt; .01). The antitussive effects could be partially antagonized by the pretreatment of methysergide or glibenclamide, but not naloxone. Moreover, compounds 1–3 showed potent expectorant activities after 3 days treatment (p &lt; .05). The water and ethanol extracts of licorice, which contain abundant 1 and 2, could decrease cough frequency at 200 mg/kg by 25–59% (p &lt; .05), and enhance the phenol red secretion (p &lt; .05), while the ethyl acetate extract showed little effect. These results indicate liquiritin apioside and liquiritin are the major antitussive and expectorant compounds of licorice. Their antitussive effects depend on both peripheral and central mechanisms.</description><identifier>ISSN: 0968-0896</identifier><identifier>EISSN: 1464-3391</identifier><identifier>DOI: 10.1016/j.bmc.2017.11.046</identifier><identifier>PMID: 29224994</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Administration, Oral ; Ammonia ; Animals ; Antitussive ; Antitussive Agents - antagonists &amp; inhibitors ; Antitussive Agents - chemistry ; Antitussive Agents - pharmacology ; Cough ; Cough - chemically induced ; Cough - drug therapy ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Expectorant ; Expectorants - chemistry ; Expectorants - isolation &amp; purification ; Expectorants - pharmacology ; Glyburide - pharmacology ; Glycyrrhiza - chemistry ; Herbal medicine ; Licorice ; Male ; Methysergide - pharmacology ; Mice ; Mice, Inbred ICR ; Molecular Structure ; Phenolsulfonphthalein - metabolism ; Plant Extracts - chemistry ; Plant Extracts - isolation &amp; purification ; Plant Extracts - pharmacology ; Structure-Activity Relationship</subject><ispartof>Bioorganic &amp; medicinal chemistry, 2018-01, Vol.26 (1), p.278-284</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright © 2017 Elsevier Ltd. 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This work evaluated the activities of 14 major compounds and crude extracts of licorice, using the classical ammonia-induced cough model and phenol red secretion model in mice. Liquiritin apioside (1), liquiritin (2), and liquiritigenin (3) at 50 mg/kg (i.g.) could significantly decrease cough frequency by 30–78% (p &lt; .01). The antitussive effects could be partially antagonized by the pretreatment of methysergide or glibenclamide, but not naloxone. Moreover, compounds 1–3 showed potent expectorant activities after 3 days treatment (p &lt; .05). The water and ethanol extracts of licorice, which contain abundant 1 and 2, could decrease cough frequency at 200 mg/kg by 25–59% (p &lt; .05), and enhance the phenol red secretion (p &lt; .05), while the ethyl acetate extract showed little effect. These results indicate liquiritin apioside and liquiritin are the major antitussive and expectorant compounds of licorice. Their antitussive effects depend on both peripheral and central mechanisms.</description><subject>Administration, Oral</subject><subject>Ammonia</subject><subject>Animals</subject><subject>Antitussive</subject><subject>Antitussive Agents - antagonists &amp; inhibitors</subject><subject>Antitussive Agents - chemistry</subject><subject>Antitussive Agents - pharmacology</subject><subject>Cough</subject><subject>Cough - chemically induced</subject><subject>Cough - drug therapy</subject><subject>Disease Models, Animal</subject><subject>Dose-Response Relationship, Drug</subject><subject>Expectorant</subject><subject>Expectorants - chemistry</subject><subject>Expectorants - isolation &amp; purification</subject><subject>Expectorants - pharmacology</subject><subject>Glyburide - pharmacology</subject><subject>Glycyrrhiza - chemistry</subject><subject>Herbal medicine</subject><subject>Licorice</subject><subject>Male</subject><subject>Methysergide - pharmacology</subject><subject>Mice</subject><subject>Mice, Inbred ICR</subject><subject>Molecular Structure</subject><subject>Phenolsulfonphthalein - metabolism</subject><subject>Plant Extracts - chemistry</subject><subject>Plant Extracts - isolation &amp; 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Li, Bin ; Fan, Jingran ; Qiao, Xue ; Ye, Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c419t-165417c81e1a350e9019715daa529d8f16b3b6e8a55d01b4afb9acfa9816e7ff3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Administration, Oral</topic><topic>Ammonia</topic><topic>Animals</topic><topic>Antitussive</topic><topic>Antitussive Agents - antagonists &amp; inhibitors</topic><topic>Antitussive Agents - chemistry</topic><topic>Antitussive Agents - pharmacology</topic><topic>Cough</topic><topic>Cough - chemically induced</topic><topic>Cough - drug therapy</topic><topic>Disease Models, Animal</topic><topic>Dose-Response Relationship, Drug</topic><topic>Expectorant</topic><topic>Expectorants - chemistry</topic><topic>Expectorants - isolation &amp; purification</topic><topic>Expectorants - pharmacology</topic><topic>Glyburide - pharmacology</topic><topic>Glycyrrhiza - chemistry</topic><topic>Herbal medicine</topic><topic>Licorice</topic><topic>Male</topic><topic>Methysergide - pharmacology</topic><topic>Mice</topic><topic>Mice, Inbred ICR</topic><topic>Molecular Structure</topic><topic>Phenolsulfonphthalein - metabolism</topic><topic>Plant Extracts - chemistry</topic><topic>Plant Extracts - isolation &amp; purification</topic><topic>Plant Extracts - pharmacology</topic><topic>Structure-Activity Relationship</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kuang, Yi</creatorcontrib><creatorcontrib>Li, Bin</creatorcontrib><creatorcontrib>Fan, Jingran</creatorcontrib><creatorcontrib>Qiao, Xue</creatorcontrib><creatorcontrib>Ye, Min</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Bioorganic &amp; medicinal chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kuang, Yi</au><au>Li, Bin</au><au>Fan, Jingran</au><au>Qiao, Xue</au><au>Ye, Min</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Antitussive and expectorant activities of licorice and its major compounds</atitle><jtitle>Bioorganic &amp; medicinal chemistry</jtitle><addtitle>Bioorg Med Chem</addtitle><date>2018-01-01</date><risdate>2018</risdate><volume>26</volume><issue>1</issue><spage>278</spage><epage>284</epage><pages>278-284</pages><issn>0968-0896</issn><eissn>1464-3391</eissn><abstract>[Display omitted] Licorice has been used as an antitussive and expectorant herbal medicine for a long history. This work evaluated the activities of 14 major compounds and crude extracts of licorice, using the classical ammonia-induced cough model and phenol red secretion model in mice. Liquiritin apioside (1), liquiritin (2), and liquiritigenin (3) at 50 mg/kg (i.g.) could significantly decrease cough frequency by 30–78% (p &lt; .01). The antitussive effects could be partially antagonized by the pretreatment of methysergide or glibenclamide, but not naloxone. Moreover, compounds 1–3 showed potent expectorant activities after 3 days treatment (p &lt; .05). The water and ethanol extracts of licorice, which contain abundant 1 and 2, could decrease cough frequency at 200 mg/kg by 25–59% (p &lt; .05), and enhance the phenol red secretion (p &lt; .05), while the ethyl acetate extract showed little effect. These results indicate liquiritin apioside and liquiritin are the major antitussive and expectorant compounds of licorice. 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subjects Administration, Oral
Ammonia
Animals
Antitussive
Antitussive Agents - antagonists & inhibitors
Antitussive Agents - chemistry
Antitussive Agents - pharmacology
Cough
Cough - chemically induced
Cough - drug therapy
Disease Models, Animal
Dose-Response Relationship, Drug
Expectorant
Expectorants - chemistry
Expectorants - isolation & purification
Expectorants - pharmacology
Glyburide - pharmacology
Glycyrrhiza - chemistry
Herbal medicine
Licorice
Male
Methysergide - pharmacology
Mice
Mice, Inbred ICR
Molecular Structure
Phenolsulfonphthalein - metabolism
Plant Extracts - chemistry
Plant Extracts - isolation & purification
Plant Extracts - pharmacology
Structure-Activity Relationship
title Antitussive and expectorant activities of licorice and its major compounds
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