Prenylflavones from Psoralea corylifolia inhibit nitric oxide synthase expression through the inhibition of I-kappa B-alpha degradation in activated microglial cells
DC Field | Value | Language |
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dc.contributor.author | Lee, MH | - |
dc.contributor.author | Kim, JY | - |
dc.contributor.author | Ryu, JH | - |
dc.date.available | 2021-02-22T15:46:10Z | - |
dc.date.issued | 2005-12 | - |
dc.identifier.issn | 0918-6158 | - |
dc.identifier.issn | 1347-5215 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/15461 | - |
dc.description.abstract | The overproduction of nitric oxide (NO) by inducible nitric oxide synthase (iNOS) switches the function of NO from a physiological neuromodulator to a neurotoxic effector in central nervous system (CNS) after brain in-jury. From the methanol extracts of Psoralea corylifolia, we purified two inhibitors of NO production in lipopolysaccharide (LPS)-activated microglia by activity guided purification along with two inactive compounds. The active compounds were identified as a chromenoflavanone [7,8-dihydro-8-(4-hydroxyphenyl)-2,2-dimethyl-2H,6H-benzo-(1,2-b:5,4-b')dipyran-6-one] (1) and 4-hydroxylonchocarpin (2). And the inactive two compounds were identified as bavachinin (3) and bavachalcone (4) by spectral analysis. The compound 2 was isolated first time from this plant. Compounds I and 2 inhibited the production of NO in LPS-activated microglia in a dose dependent manner (IC50's were 11.4, 10.2 mu M, respectively). They also suppressed the expression of protein and mRNA of iNOS in LPS-activated microglial cells at 10 mu M as observed in Western blot analysis and RT-PCR experiment. Furthermore they inhibited the degradation of I-kappa B-alpha in activated microglia. These results imply that compounds I and 2 can be lead compounds for the development of neuroprotective drug with the inhibitory activity of NO overproduction by activated microglial cells. | - |
dc.format.extent | 5 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | PHARMACEUTICAL SOC JAPAN | - |
dc.title | Prenylflavones from Psoralea corylifolia inhibit nitric oxide synthase expression through the inhibition of I-kappa B-alpha degradation in activated microglial cells | - |
dc.type | Article | - |
dc.publisher.location | 일본 | - |
dc.identifier.doi | 10.1248/bpb.28.2253 | - |
dc.identifier.scopusid | 2-s2.0-28744433564 | - |
dc.identifier.wosid | 000234096100016 | - |
dc.identifier.bibliographicCitation | BIOLOGICAL & PHARMACEUTICAL BULLETIN, v.28, no.12, pp 2253 - 2257 | - |
dc.citation.title | BIOLOGICAL & PHARMACEUTICAL BULLETIN | - |
dc.citation.volume | 28 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 2253 | - |
dc.citation.endPage | 2257 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Pharmacology & Pharmacy | - |
dc.relation.journalWebOfScienceCategory | Pharmacology & Pharmacy | - |
dc.subject.keywordPlus | INFLAMMATORY RESPONSE | - |
dc.subject.keywordPlus | INTERFERON-GAMMA | - |
dc.subject.keywordPlus | TNF-ALPHA | - |
dc.subject.keywordPlus | MACROPHAGES | - |
dc.subject.keywordPlus | FLAVONOIDS | - |
dc.subject.keywordPlus | ALZHEIMER | - |
dc.subject.keywordPlus | DISEASES | - |
dc.subject.keywordPlus | INJURY | - |
dc.subject.keywordPlus | NO | - |
dc.subject.keywordPlus | LIPOPOLYSACCHARIDE | - |
dc.subject.keywordAuthor | prenylflavone | - |
dc.subject.keywordAuthor | nitric oxide | - |
dc.subject.keywordAuthor | microglia | - |
dc.subject.keywordAuthor | Psoralea corylifolia | - |
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