{"title":"Combination of the microalga Pavlova sp. OPMS 30543 with diclofenac attenuates hyperalgesia in adjuvant-induced arthritis mice.","authors":"Wataru Nemoto, Kotaro Yamada, Ruka Kobayashi, Tomohiro Hoshi, Ken Nakahara, Akihiko Kanamoto, Osamu Nakagawasai, Koichi Tan-No","doi":"10.1093/bbb/zbaf047","DOIUrl":null,"url":null,"abstract":"<p><p>Marine microalgae, such as Pavlova spp., are known to produce bioactive compounds and have been extensively studied as natural resources with anti-inflammatory properties. Among several Pavlova spp., OPMS 30543 (Pav) has recently been found to contain a high fucoxanthin content. In this study, we aimed to evaluate the effects of Pav treatment on hyperalgesia using a mouse model of adjuvant-induced arthritis (AIA), which was established by injecting complete Freund's adjuvant (CFA). Pav alone did not suppress the hyperalgesia observed in AIA mice. However, combined with low-dose diclofenac (DFC; 0.1 mg/kg) resulted in marked analgesia. In AIA mice, the activation of excitatory neurons was observed in the spinal cord; however, this activation was suppressed by the combination of Pav and DFC. These findings suggest that Pav enhances the analgesic effect of DFC in a mouse arthritis-associated hyperalgesia, and may aid in the development of improved strategies for inflammatory pain management.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioscience, Biotechnology, and Biochemistry","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1093/bbb/zbaf047","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Marine microalgae, such as Pavlova spp., are known to produce bioactive compounds and have been extensively studied as natural resources with anti-inflammatory properties. Among several Pavlova spp., OPMS 30543 (Pav) has recently been found to contain a high fucoxanthin content. In this study, we aimed to evaluate the effects of Pav treatment on hyperalgesia using a mouse model of adjuvant-induced arthritis (AIA), which was established by injecting complete Freund's adjuvant (CFA). Pav alone did not suppress the hyperalgesia observed in AIA mice. However, combined with low-dose diclofenac (DFC; 0.1 mg/kg) resulted in marked analgesia. In AIA mice, the activation of excitatory neurons was observed in the spinal cord; however, this activation was suppressed by the combination of Pav and DFC. These findings suggest that Pav enhances the analgesic effect of DFC in a mouse arthritis-associated hyperalgesia, and may aid in the development of improved strategies for inflammatory pain management.
期刊介绍:
Bioscience, Biotechnology, and Biochemistry publishes high-quality papers providing chemical and biological analyses of vital phenomena exhibited by animals, plants, and microorganisms, the chemical structures and functions of their products, and related matters. The Journal plays a major role in communicating to a global audience outstanding basic and applied research in all fields subsumed by the Japan Society for Bioscience, Biotechnology, and Agrochemistry (JSBBA).