• Title/Summary/Keyword: cyclooxygenase-1

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Environmental Economic Inducement Policies Affecting the Impacts of Environmental Management for Enterprises (기업의 환경경영에 영향을 미치는 환경경제 유인정책)

  • Kim Dong-Hwan
    • Proceedings of the KAIS Fall Conference
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    • 2004.06a
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    • pp.324-326
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    • 2004
  • 20세기 말까지만 해도 경제발전은 자원고갈과 자연환경파괴를 통한 대량생산 및 대량소비를 전제로 하여 이루어 졌다고 평가할 수 있다. 그 결과 세계의 자연환경은 급속히 훼손되었으며, 환경오염은 이제 인류의 생존을 위협하는 단계에 이르렀다. 이 같은 위기상황에 대처하기 위하여 지난 1980년대부터 선진국을 중심으로 환경경영에 대한 인식이 확산되기 시작하였다. 무엇보다도 자연환경 의 보존을 요구하는 사회적 압력은 기업으로 하여금 환경경영 의 필요성을 깨닫게 하였다. 환경 경영이란 기업들이 새로운 비교 우위를 창출하기 위하여 경 영 방식의 혁신에 있어서 자연환경을 초점으로 삼는 것이다. 환경경영이란 환경보전을 요구하는 이해 관계자들로부터의 요구에 기업이 이에 적극적으로 대응함으로써 한경보호와 경영성과를 동시에 달성하는 종합적인 경영을 의미한다. 환경경영은 이업의 전 활동에 걸친 전사적인 전략적 차원의 활동으로 기업경영이 어느 한 기능분야에 국한된 개념이 아니다. 궁극적으로 환경보호와 성장의 조화라는 기업의 목표달성을 위해 기업의 생산, 재무, 인사조직, 마케팅, 회계정보시스템등의 활동이 모두 통합되어야 할 것이다. (김종대, 이의훈:2003) 최근 들어 환경경영이 기업의 가치에 미치는 영향에 대한 연구가 활발히 전개되고 있는 가운데 선진국의 경우 기업의 가치가 대체적으로 정확하게 주가에 반영되고 있는 가운데 선진국의 경우 기업의 가치가 대체적으로 정확하게 주가에 반영되고 있어 우리기업들이게 시사하는 바가 크다 하겠다. 환경경영과 기업가치와의 상관관계를 조사한 연구결과에 따르면 우수한 환경경영을 실천하고 있는 기업의 주식을 중심으로 포트폴리오를 구성한 펀드의 수익율이 상대적으로 높게 나타나고 있어 환경경영의 중요성을 뒷받침하고 있다. 이를 위하여 본 논문은 우선적으로 기업의 환경경영에 기본이 되는 중요한 환경경제 유인정 책과 규제들을 중심으로 살펴보고자 하였다.학적 합성이 아주 까다로운 약제물질 등을 천연상태에서 합성하고 있기 때문이다. 또 식물은 lipoxygenase 효소계가 있어서 마치 천연물 석유제조공장과 같은 제조공정 capacity를 가지고 있다. 그러면 식물/식품 GMO는 안전한 것인가? 아니, KBS의 한 사회자가 말했듯이, 그리고 많은 소비자들이 믿는 것처럼 GMO는 위험한가? GMO에 대한 일반 사람들의 공포감은 Green Peace 당원들뿐만 아니라 일부 과학자들에 의해서도 조장되고 있다. 이러한 분위기 속에서 GMO에 의한 제2 녹색혁명은 Africa 대륙에서의 제1 녹색혁명이 지금도 지연되는 것과 같다고도 볼 수 있다. GMO의 환경에 대한 악영향은 과대 선전되어있는 것이 아닌가? 마치 GMO가 화학비료, 농약제보다 더 위험하다고 믿는 사람들도 많다. 나는 이러한 GMO 공포증이 과학적으로 그리고 "Risk Assessment"의 견지에서 볼 때 그 근거가 희박하다고 보여주는 몇 몇 실험 및 경험 사실들을 인용하려 한다. 그리고 올바른 Risk Assessment야 말로 한국의 21세기 BT 산업을 경쟁력 있게 하고 국민 년 소득 2만불 달성에 중요한 기여를 하게 될 것이라고 생각한다. 한국은 농토가 적고 천연자원이 빈약하다. GMO는 21세기의 생존 경쟁 산업이다. 제2의 녹색혁명은 얼마든지 가능하며, 한국은 부족한 농토와 빈약한 자원에도 불구하고 능력 있는 인적자원이 풍부하여 GMO 개발 연구에 국제적 경쟁력을 키울 수 있다. 그러나 GMO에 대한 논쟁만 하고 있으면 이미 때가 늦는다. 미국은 이미 GMO-BT 시장을 거의 완전 독점했으며, 타국에서의 논쟁과 불합리적으로 엄격한 GMO 관련 규정을 조장하고 환영한다.이상의 결과와 같이 인삼 saponin 성분들은 arachidonic acid로부터 cyclooxygenase를 통해 일단 생성된 endoperoxide에서 각각의 prostagland

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Analgesic Effects of Moxi-tar Pharmacopuncture on the Carrageenan-induced Arthritic Rats (Carrageenan 유도 관절염에 대한 구진(灸津) 약침(藥鍼)의 진통작용)

  • Koo, Sung-Tae;Shin, Jong-Keun;Choi, Yun-Young;Song, Jung-Bang;Kim, Jae-Hyo;Kim, Kyoung-Sik;Sohn, In-Chul
    • The Journal of Traditional Korean Medicine
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    • v.15 no.1
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    • pp.113-127
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    • 2006
  • Objectives: This study was produced to examine the effects of moxibustion that had been played important role to traditional oriental medical treatment on disease. Recently, it was reported that moxi-tar which is generated in the process of moxibustion as burning combustibles decreased nitric oxide(NO) and inducible NO synthase (iNOS) generation in cellular experiments. Methods: Carrageenan-induced arthritis rat model was used to test the effect of moxi-tar as a chronic pain model. Diluted moxi-tar was single injected in several acupoints or combined with electroacupuncture (l ms, 2 Hz, and 2 mA) into contralateral ST36 acupoint for 30 min to assess the synergic effects. After the treatment, behavioral tests measuring stepping force were periodically conducted during the next 12 hours. Endogenous NO and iNOS, cyclooxygenase-2 (COX-2), and c-Fos protein expression in the spinal cord were examined on a rat model of carrageenan-induced arthritis. Results : After the induction of arthritis, rats subsequently showed a reduced stepping force of the affected limb for at least the next 4 days. The reduced stepping force of the limb was presumably due to a painful knee, since oral injection of indomethacin produced temporary improvement of weight bearing. Maxi-tar produced significant improvement of stepping force of the hindlimb affected by the arthritis lasting at least 9 hours. The magnitude of this improvement was equivalent to that obtained after an oral injection of 3 mg/kg of indomethacin and this improvement of stepping force was interpreted as an analgesic effect. Maxi-tar produced the improvement of stepping force of the affected hindlimb in a dose-dependent manner. Both NO production and iNOS, COX-2 protein expression increased by arthritis were suppressed by maxi-tar. Moxi-tar on combination with electroacupuncture (EA) produced more powerful and longer lasting improvement of stepping force of the hindlimb affected by the arthritis than either moxi-tar or EA did. Conclusion : The present study suggest that maxi-tar produces a potent analgesic effect on the chronic knee arthritis pain model in the rat and that moxi-tar-induced analgesia modulate endogenous NO through the suppression of iNOS/COX-2 protein expression.

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Facilitation of cisplatin-induced acute kidney injury by high salt intake through increased inflammatory response (염분 섭취에 의한 시스플라틴 유도 급성 신장 손상의 촉진과 염증 반응과의 연관성)

  • Ji, Seon Yeong;Hwangbo, Hyun;Kim, Min Yeong;Kim, Da Hye;Park, Beom Su;Park, Joung-Hyun;Lee, Bae-Jin;Lee, Hyesook;Choi, Yung Hyun
    • Journal of Marine Bioscience and Biotechnology
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    • v.13 no.2
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    • pp.86-93
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    • 2021
  • A high salt diet contributes to kidney damage by causing hypoxia and oxidative stress. Recently, an increase in dietary salt has been reported to induce an inflammatory phenotype in immune cells, further contributing to kidney damage. However, studies on the exact mechanism and role of a high salt diet on the inflammatory response in the kidneys are still insufficient. In this study, a cisplatin-induced acute kidney injury model using C57BL/6 mice was used to analyze the effect of salt intake on kidney injury. Results showed that high salt administration aggravated kidney edema in mice induced by treatment with cisplatin. Moreover, the indicators of kidney and liver function impairment were significantly increased in the group cotreated with high salt compared with that treated with cisplatin alone. Furthermore, the exacerbation of kidney damage by high salt administration was also associated with a decrease in the number of cells in the immune regulatory system. Additionally, high salt administration further decreased renal perfusion functions along with increased cisplatin-induced damage to proximal tubules. This was accompanied by increased expression of T cell immunoglobulin, mucin domain 1 (a biomarker of kidney injury), and Bax (a pro-apoptotic factor). Moreover, cisplatin-induced expression of proinflammatory mediators and cytokines, including cyclooxygenase-2 and tumor necrosis factor-α in kidney tissue, was further increased by high salt intake. Therefore, these results indicate that the kidney's inflammatory response by high salt treatment can further promote kidney damage caused by various pathological factors.

Effect of Anti-inflammation on Oryeong-san Formulation for Mix Extract Tablet (오령산 정제 개발 및 항염증 효과)

  • Kim, Se Jin;Leem, Hyun Hee;Nam, Won Hee;Son, Su Mi;Choi, Hye Min;Kim, Myung Jin;Kim, Jung Ok;Lee, Hwa Dong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.34 no.6
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    • pp.348-354
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    • 2020
  • Oryeong-san (ORS) is a traditional Korean herbal medicine widely used for renal associated diseases, composed of five medicine herbs; Atractylodes japonica Koidzumi, Cinnamomum cassia Presl, Polyporus umbellatus Fries, Poria cocos Wolf and Alisma orientale Juzepzuk. We studied to improve the convenience of intake and portability by developing modernized dosage forms, and examined the effect on anti-inflammation of ORS. In order to develop the tablet formulation of ORS (ORS-F), the tablets were evaluated on the basis of physical characteristics include diameter, thickness, weight variation, hardness, friability and disintegration. To analyze the marker components of ORS-F, eight index markers from five herbal medicines were chosen. And the method using high performance liquid chromatography (HPLC) with diode-array detector method was established for the simultaneous analysis. The biological activities were examined the effect of ORS-F on pro-inflammation mediated by LPS-stimulation. The production of nitric oxide (NO) and cytokines were determined by reacting cultured medium with griess reagent and enzyme-linked immunosorbent assay (ELISA). The expression of cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) were investigated by Western blot and RT-PCR. The anti-oxidant activities of OJS-F increased markedly, in a dose-dependent manner. and, The total phenolic compound and flavonoids contents of OJS-F were 10.20±0.09 ㎍/㎎ and 12.86±0.86 ㎍/㎎. OJS-F which is LPS has diminished in the LPS-induced release of inflammatory mediators (NO, iNOS, COX2 and PGE2) and pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) from the RAW264.7 macrophages. Therefore, the developed formulation for tablet of ORS-F provide efficiency and usability, and indicated effect of anti-inflammation.

ⳑ-Methionine inhibits 4-hydroxy-2-nonenal accumulation and suppresses inflammation in growing rats

  • Zhengxuan, Wang;Mingcai, Liang;Hui, Li;Bingxiao, Liu;Lin, Yang
    • Nutrition Research and Practice
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    • v.16 no.6
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    • pp.729-744
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    • 2022
  • BACKGROUND/OBJECTIVES: 4-Hydroxy-2-nonenal (HNE) is a biomarker for oxidative stress to induce inflammation. Methionine is an essential sulfur-containing amino acid with antioxidative activity. On the other hand, the evidence on whether and how methionine can depress HNE-derived inflammation is lacking. In particular, the link between the regulation of the nuclear factor-κB (NF-κB) signaling pathway and methionine intake is unclear. This study examined the link between depression from HNE accumulation and the anti-inflammatory function of ⳑ-methionine in rats. MATERIALS/METHODS: Male Wistar rats (3-week-old, weighing 70-80 g) were administered different levels of ⳑ-methionine orally at 215.0, 268.8, 322.5, and 430.0 mg/kg body weight for two weeks. The control group was fed commercial pellets. The hepatic HNE contents and the protein expression and mRNA levels of the inflammatory mediators were measured. The interleukin-10 (IL-10) and glutathione S-transferase (GST) levels were also estimated. RESULTS: Compared to the control group, hepatic HNE levels were reduced significantly in all groups fed ⳑ-methionine, which were attributed to the stimulation of GST by ⳑ-methionine. With decreasing HNE levels, ⳑ-methionine inhibited the activation of NF-κB by up-regulating inhibitory κBα and depressing phosphoinositide 3 kinase/protein kinase B. The mRNA levels of the inflammatory mediators (cyclooxygenase-2, interleukin-1β, interleukin-6, inducible nitric oxide synthase, tumor necrotic factor alpha) were decreased significantly by ⳑ-methionine. In contrast, the protein expression of these inflammatory mediators was effectively down regulated by ⳑ-methionine. The anti-inflammatory action of ⳑ-methionine was also reflected by the up-regulation of IL-10. CONCLUSIONS: This study revealed a link between the inhibition of HNE accumulation and the depression of inflammation in growing rats, which was attributed to ⳑ-methionine availability. The anti-inflammatory mechanism exerted by ⳑ-methionine was to inhibit NF-κB activation and to up-regulate GST.

Inhibitory Effect of Water Extract from Dojuksan on LPS-induced Proinflammatory Cytokines Production in RAW 264.7 Cells (LPS로 자극한 RAW 264.7 세포에서 염증성세포활성물질 생산에 미치는 도적산(導赤散) 물 추출의 억제 효과)

  • Kim, Ji-Eun;Kim, Sung-Bae;Kang, Ok-Hwa;Shin, In-Sik;Kang, Suk-Hoon;Lee, Seung-Ho;Kwon, Dong-Yeul
    • The Korea Journal of Herbology
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    • v.28 no.3
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    • pp.53-60
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    • 2013
  • Objectives : DojukSan is known to be effective for treating a urinary diseases and stomatitis. However, there has been a lack of studies regarding the effects of Dojuksan on the inflammatory activities and effector inflammatory disease mechanism about macrophage before is not known. To elucidate the molecular mechanisms of Dojuksan water extract (DJS) on pharmacological and biochemical actions in inflammation, we examined the effect of DJS on pro-inflammatory mediators in lipopolysaccharide (LPS)-stimulated macrophages. Methods : In the present study, pro-inflammatory cytokine production was determined by performing enzyme-linked immunosorbent assay, reverse transcription polymerase chain reaction, and western blot analysis to measure the activation of MAPKs. Cells were treated with 200 ng/mL of LPS 1 h prior to the addition of DJS. Cell viability was measured by MTS assay. The investigation focused on whether DJS inhibited nitric oxide (NO) and prostaglandin E2 ($PGE_2$) productions, as well as the expressions of inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6) and mitogen-activated protein kinases (MAPKs) in LPS-stimulated RAW 264.7 cells. Results : We found that DJS inhibited LPS-induced NO, $PGE_2$ and IL-6 productions as well as the expressions of iNOS and COX-2. Furthermore, DJS suppressed the LPS-induced phosphorylation of p38 MAPK and c-Jun NH2-protein kinase (JNK). Conclusions : These results suggest that DJS has inhibitory effects on LPS-induced $PGE_2$, NO, and IL-6 production, as well as the expressions of iNOS and COX-2 in the murine macrophage. These inhibitory effects occur through blockades on the MAPKs phosphorylation.

Anti-inflammatory Effect of Eleutherococcus senticosus Extracts from Gangwon-do by Plant parts or Solvents (강원도 가시오갈피의 식물 부위 또는 추출 용매 조건에 따른 항염증 효과)

  • Junkyu Park;Mina Boo;Soojin An;Sujin Shin;Jinbong Park;Ho-Young Choi;Kyungjin Lee
    • The Korea Journal of Herbology
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    • v.38 no.4
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    • pp.21-29
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    • 2023
  • Background : The purpose of this study was to investigate the anti-inflammatory properties of stems and leaves of Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. (ES) from Gangwon-do. Methods and Results : Stems and leaves of ES were collected from two areas in Gangwon-do: Cheorwon-gun and Samcheok-si. Samples were extracted with water by using the pressurized liquid extraction method and with 70% prethanol A by using the heat reflux extraction method. The anti-inflammatory effects of ES were evaluated through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide(MTT), lactate dehydrogenase(LDH) assay, nitric oxide(NO) assay, enzyme-linked immunosorbent assay(ELISA), and Western blot analysis in RAW 264.7 macrophages stimulated with lipopolysaccharide (LPS). 1) Results showed that ES leaf extractions were not cytotoxic at a concentration of up to 30 ㎍/㎖. The leaves of 70% prethanol A extractions of ES(30 ㎍/㎖) inhibited NO, interleukin-6(IL-6), and tumor necrosis factor-α(TNF-α) production and decreased the protein level of cyclooxygenase 2(COX-2). There was no significant change in the protein level of inducible nitric oxide synthase(iNOS). The stem extractions of ES did not exhibit anti-inflammatory effects. Conclusions : In this study, the leaves of 70% prethanol A extractions of ES demonstrated anti-inflammatory effect on RAW 264.7 macrophages. The 70% prethanol A extractions have a relatively higher anti-inflammatory effect on RAW 264.7 macrophages than water extractions.

Anti-inflammatory and Antioxidative Effects of Lotus Root Extract in LPS-PG-Stimulated Human Gingival Fibroblast-1 Cells (치주염 원인균 LPS-PG로 유도된 인체 치은섬유아세포에서 연뿌리 추출물에 대한 항염증 및 항산화 효과)

  • Lee, Young-Kyung;Kim, Chul Hwan;Jeong, Dae Won;Lee, Ki Won;Oh, Young Taek;Kim, Jeong Il;Jeong, Jin-Woo
    • Korean Journal of Plant Resources
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    • v.35 no.5
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    • pp.565-573
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    • 2022
  • Gingival inflammation is one of the main causes that can be related to various periodontal diseases. Human gingival fibroblast (HGF) is the major constituent in periodontal connective tissue and secretes various inflammatory mediators, such as nitric oxide (NO) and prostaglandin E2 (PGE2), upon lipopolysaccharide stimulation. This study is aimed at investigating the anti-inflammatory and antioxidative activities of Lotus Root extract (LRE) in Porphyromonas gingivalis derived lipopolysaccharide (LPS-PG)-stimulated HGF-1 cells. The concentration of NO and PGE2, as well as their responsible enzymes, inducible NO synthase (iNOS), and cyclooxygenase-2 (COX-2), was analyzed by Griess reaction, ELISA, and western blot analysis. LPS-PG sharply elevated the production and protein expression of inflammatory mediators, which were significantly attenuated by LRE treatment in a dose-dependent manner. LRE treatment also suppressed activation of Toll-like receptor 4 (TLR4)/myeloid differentiation primary response gene 88 (MyD88) and nuclear factor-κB (NF-κB) in LPS-PG-stimulated HGF-1 cells. In addition, one of phase II enzyme, NAD(P)H quinone dehydrogenase (NQO)-1, and its transcription factor, Nuclear factor erythroid 2-related factor 2 (Nrf2), were significantly induced by LRE treatment. Consequently, these results suggest that LRE ameliorates LPS-PG-induced inflammatory responses by attenuating TLR4/MyD88-mediated NF-κB, and activating NQO-1/Nrf2 antioxidant response element signaling pathways in HGF-1 cells.

Effect of Microbial Phytase in Low Phosphorus and Calcium Level Diet on the Performance and Nutrient Digestibility in Laying Hens (인과 칼슘의 수준이 낮은 산란계 사료 내 미생물 Phytase의 첨가가 생산성 및 영양소 소화율에 미치는 영향)

  • Min B.J.;Kwon O.S.;Lee W.B.;Son K.S.;Hong J.W.;Yang S.J.;Moon T.H.;Kim I.H.
    • Korean Journal of Poultry Science
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    • v.32 no.1
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    • pp.15-21
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    • 2005
  • This Study was conducted to investigate the effects of microbial phytase in low phosphirus and calcium level diet on the performance and nutrient digestibility in laying hens. One hundred ninety two, 50 wks old, ISA brown commerical layers were used for 12 weeks feeding trial after 7-d adjustment period. Four dietary treatments included CON(control; Co.), P2 ($0.06\%$ Natuphos, BASF) and P3 ($0.06\%$ PHOSMAX, GENOFOCUS). Ca and available P concentrations of P1, P2 and P3 were 90 and $50\%$ of NRC recommecdations to accentuate difference in response to phytase availability. In whole period, egg production was not affected by treatments. At 12 weeks, egg weight was significantly increased in adding phytase treatments (P<0.05). Egg shell thickness was increased in P1, P2 and P3 treatments compared with control (P<0.05) at 9 weeks. Ca concentration of serum tended to decrease in P1 treatment without significant difference (P>0.05). Ca and P concentrations of tibia were higher in layers fed dietary phyrase than those fed control diet without significant difference (P>0.05). Digestibilities of DM, N and ash were improved in P1 treatment compared with P2 and P3 treatments (P<0.05). Ca and P digestibilities were the highest in P2 treatment (P>0.05), but was not significant difference between control and P1 treatments.

Immunostimulatory and Anti-Obesity Activity of Lonicera insularis Nakai Extracts in Mouse Macrophages RAW264.7 Cells and Mouse Adipocytes 3T3-L1 Cells (섬괴불나무(Lonicera insularis Nakai) 추출물의 면역자극 및 항비만 활성)

  • Yu, Ju Hyeong;Yeo, Joo Ho;Choi, Min Yeong;Lee, Jae Won;Geum, Na Gyeong;An, Mi-Yun;Jeong, Jin Boo
    • Korean Journal of Plant Resources
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    • v.35 no.4
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    • pp.417-427
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    • 2022
  • In this study, we investigated in vitro immuno-stimulatory and anti-obesity activity of fruit (LIF), leaves (LIL) and stems (LIS) from Lonicera insularis Nakai in mouse macrophages RAW264.7 cells and mouse pre-adipocytes 3T3-L1 cells. LIF, LIL and LIS increased the production of immunostimulatory factors such as nitric oxide (NO), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), cyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α) and activated phagocytosis in RAW264.7 cells. Inhibition of toll-like receptor 2/4 (TLR2/4) partly blocked LIF, LIL and LIS mediated production of immunostimulatory factors. In addition, inhibition of mitogen-activated protein kinases (MAPK) signaling attenuated the production of immunostimulatory factors induced by LIF, LIL and LIS. Based on these results of this study, LIF, LIL and LIS is thought to activate macrophages the production of immunostimulatory factors and phagocytosis through toll-like receptor 2/4 (TLR2/4) and MAPKs signaling pathway. In anti-obesity study, LIF reduced the lipid accumulation in 3T3-L1 cells. LIF increased the protein phosphorylation expressions such as AMP-activated protein kinase (AMPK), hormone sensitive lipase (HSL), adipose triglyceride lipase (ATGL) related to the lipolysis of the adipocytes. In addition, LIF increased the expression of proteins involved in energy metabolism and brown adipose tissues differentiation such as peroxisome proliferator-activated receptor gamma coativator 1α (PGC-1α) and PR domain-containing16 (PRDM16). These results suggest that LIF is involved in lipid accumulation inhibition through expressing the proteins such as lipolysis and differentiation of white adipocytes to brown adipocytes.