Korean Journal of Clinical Laboratory Science (대한임상검사과학회지)

Korean Society for Clinical Laboratory Science (대한임상검사과학회)
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Antioxidant and Anti-Inflammatory Activity of Brachythecium populeum Extract

Brachythecium populeum 추출물의 항산화 및 항염효과

  • Sang-Nam PARK (Department of Clinical Laboratory Science, Kyung Dong University) ;
  • Ok Hee LEE (Department of Health Management, Kyung Dong University)
  • Received : 2023.07.11
  • Accepted : 2023.08.11
  • Published : 2023.09.30
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Abstract

Antioxidant, cytotoxic, and anti-inflammatory assays were conducted to determine the commercial viability of Brachythecium populeum. The antioxidant activity was assessed by performing the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays. This was followed by the quantification of polyphenols and flavonoids. Results of the DPPH and ABTS assay showed that antioxidant activities of the ethanol extract of B. populeum were 3.7 and 3.6 times higher than water extract, respectively. The polyphenol concentration was also determined to be 4.1 times higher and the flavonoid concentration was 5.3 times higher than the water extract. The cell-based experiments, 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay and nitric oxide assay, were performed using RAW 264.7. Results of the MTT assay revealed that both extracts exerted no cytotoxicity on the cells (based on 80% viability). In the nitric oxide (NO) production inhibition experiment, inhibition of NO production was determined to be 15.42% more when exposed to ethanol extract as compared to water extract. Furthermore, the ethanol extract exerted greater inhibition of inflammatory cytokines interleukin (IL)-1β, IL-6, and tumor necrosis factor-α production (9.39%, 11.87%, and 14.49% more, respectively) when compared to the water extract. Due to the good antioxidant activity and potential for inhibiting NO and inflammatory cytokine production, B. populeum ethanol extracts are prospective sources of anti-inflammatory compounds.

Brachythecium populeum 의 상업적 사용 가능성을 확인하기 위하여 항산화능 실험과 세포 독성, 항염능 실험을 실시하였다. 폴리페놀과 플라보노이드 농도 측정에서는 70% 에탄올 추출이 증류수 추출에 비해 높은 농도를 나타내어, 70% 에탄올이 추출물의 유효성분 및 추출 수율의 측면에서 가장 적합한 추출용매란 것을 확인하였다. DPPH, ABTS에서는 증류수 추출물에 비해 70% 에탄올 추출물의 항산화능이 높은 것을 확인하였다. 이는 B. populeum 유효성분의 극성에 따른 것으로 생각된다. 항염능 실험에서는 세포 독성과 항염능을 알아보았다. 세포독성의 경우 양 추출물 모두낮은 세포독성을 보였으며, 염증 전달 물질인 NO 생성 억제능의 경우 70% 에탄올 추출물이 증류수 추출물에 비해 통계적으로 유의한 수준의 항염능 증가를 보였다. 염증성 사이토카인인 IL-1β, IL-6, TNF-α의 농도를 측정한 결과 100 ㎍/mL 농도에서 각각 9.39%, 11.87%, 14.49%의 억제효과를 나타내었다. 이를 통해 B. populeum의 70% 에탄올이 염증 억제를 위한 물질로서 사용 가능함을 보였다.

Keywords

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