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Abstract Title:

HS-23, Lonicera japonica extract, attenuates septic injury by suppressing toll-like receptor 4 signaling.

Abstract Source:

J Ethnopharmacol. 2014 Aug 8 ;155(1):256-66. Epub 2014 May 24. PMID: 24862492

Abstract Author(s):

So-Jin Kim, Seong-Jin Yoon, Young-Mok Kim, Sung-Woon Hong, Sung Hum Yeon, Kang-In Choe, Sun-Mee Lee

Article Affiliation:

So-Jin Kim

Abstract:

ETHNOPHARMACOLOGICAL RELEVANCE: Lonicera japonica Thunberg is a traditional herbal medicine widely used in East Asia as an anti-bacterial, anti-inflammatory, and antiviral agent. This study was designed to investigate the effects of HS-23, ethanol extract of the dried flower buds of Lonicera japonica, in experimental models of sepsis and elucidate the mechanisms of action of HS-23.

MATERIALS AND METHODS: Male ICR mice were intravenously administered HS-23 (20 and 40 mg/kg) for 0 (immediately) and 24 h after cecal ligation and puncture (CLP) for survival tests, and HS-23 (40 mg/kg) immediately after CLP for biochemical assays.

RESULTS: HS-23 improved sepsis-induced mortality, enhanced bacterial clearance, and attenuated multiple organ failure. The mechanisms of action of HS-23 included attenuation of increased toll-like receptor (TLR)4 protein and mRNA expression. HS-23 suppressed sepsis-induced increases in protein expression of myeloid differentiation primary response protein 88, p38 and c-Jun N-terminal kinase in both liver and lung, as well as TIR-domain-containing adapter-inducing interferon-β and interferon regulatory transcription factor 3 protein expression in liver.

CONCLUSION: The results of this study revealed that HS-23 attenuated sepsis through suppression of TLR signaling pathways. Therefore, our findings suggest that HS-23 might be useful as a potential therapeutic agent for treatment of sepsis.

Study Type : Animal Study
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