• Title/Summary/Keyword: Natural herbal extracts

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Induction of Apoptosis by Citri Pericarpium Methanol Extract through Reactive Oxygen Species Generation in U937 Human Leukemia Cells (진피 메탄올 추출물의 활성산소종 생성을 통한 인체 백혈병 세포의 apoptosis 유발)

  • Kim, Ga Hee;Lee, Moon Hee;Han, Min Ho;Park, Cheol;Hong, Su Hyun;Choi, Yung Hyun
    • Journal of Life Science
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    • v.23 no.8
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    • pp.1057-1063
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    • 2013
  • Citri Pericarpium is one of the most commonly used traditional herbal medicines in Korea, China, and Japan. Its extracts have many properties including the treatment of indigestion and inflammatory respiratory syndromes such as bronchitis and asthma. However, the underlying molecular mechanisms of anti-cancer activity and molecular targets are not fully understood. In this work, we investigated the anti-proliferative activity of Citri Pericapium (EMCP) methanol extract on reactive oxygen species (ROS) production and the association of these effects with apoptotic cell death using U937 human leukemia cells in vitro. EMCP treatment decreased cell proliferation in a dose-dependent manner following an increase of the sub-G1 phase, the down-regulation of Bax proteins, the activation of caspases, the degradation of poly (ADP-ribose) polymerase proteins (PARP), and the induction of ROS generation. However, the quenching of ROS generation by N-acetyl-L-cysteine administration, a scavenger of ROS, reversed the EMCP-induced apoptosis effects. In addition, heme oxygenase-1 expression also recovered by inhibiting the nuclear translocation of phosphorylated NF-E2-related factor 2. Taken together, our data indicate that ROS are involved as key mediators in the early molecular events in the EMCP-induced apoptotic pathway.

The Effects of Anti-Inflammatory Activities and Active Fractions Analysis of Ethanol Extract from Red Rose Petals (붉은 장미꽃잎 에탄올 추출물의 활성 분획물 분석 및 항염증 활성 효과)

  • Kim, Hyun Kyoung
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.2
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    • pp.543-551
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    • 2020
  • Red rose petals are usually disposed but they are an abundant source of phenolics and traditionally used as food supplement and as herbal medicine. Of the Various phenolics, they are known to have anticancer, antioxidant, and anti-inflammatory properties. In this study, we investigated the anti-inflammatory effects of red rose ethanolic extracts(GRP) on lipopolysaccharide (LPS)-activated RAW 264.7 cells. The results demonstrated that pretreatment of GRP(500㎍/mL) significantly reduced NO production by suppressing iNOS protein expression in LPS-stimulated cells. Anti-inflammatory effects byred rose petal were observed in the following. Red rose petal inhibited the translocation of NF-κB from the cytosol to the nucleus via the suppression of IκB-α phosphorylation and also inhibited LPS-stimulated NF-κB transcriptional activity. These findings suggest that red rose petal exert anti-inflammatory actions and help to elucidate the mechanisms underlying the potential therapeutic values of red rose petal. Therefore, red rose petal could be regarded as a potential source of natural anti-inflammatory agents.

Studies on the Antitumor Activity of Gamisoam-san via Suppressing Angiogenesis and Growth Factor Expression (혈관신생 및 이식암세포증식 억제를 통한 가미소암산의 항암작용연구)

  • Yoon Sung Chan;Ahn Seong Hun;Mun Yean Ja;Kim Jin Kyeong;Choo Young Kug;Jung Kyu Yong;Kim Yeong Mok;Woo Won Hong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.4
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    • pp.969-979
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    • 2003
  • Gamisoamsan is a prescription originated in Soamsan which is known as an anti-cancer remedy in the traditional Korean Medicine. To enhance the synergic effects of anti-cancer activity of Soamsan, this study reconstituted the original components of Soamsan with a slight modification and produced a novel herbal remedy, namely Gamisoamsan. To investigate the effects of Gamisoamsan on anti-cancer reaction, I studied the effects of Gamisoamsan on angiogenesis via chorioallantoic membrane (CAM) assay, corneal neovascularization assay and the effects on expression of growth factor which are VEGF, TGF-β, bFGF and IMUP-1. Anti-cancer effects of Gamisoamsan was also abserved through hematological parameters, tumor volume and survival rate in mice. Gamisoamsan inhibited embryonic angiogenesis of blood vessels in CAM assay and inhibited neovascularization of ral cornea. Gamisoamsan reduced cell proliferation in HT1080 cells and IC50 was 2.18 ㎎/㎖ Gamisoamsan reduced the expression of VEGF, TGF-β, bFGF and IMUP-1 which was known as vascular growth factor and this effects of Gamisoamsan was predominant than VP-16. The treatment of Gamisoamsan decreased the CT-26 cell inoculated-tumor volume in mice colon adenocarcinoma and increased mice survival which was inoculated CT-26 cells. The results of the present study suggest that Gamisoamsan extracts has a potential anti-tumor activity and may be an useful remedy to prevent and/or treat cancer.

Composition Comprising the Extract of Anethi Fructus for the Treatment and Protection of Immune Activity (시라자 추출물을 함유하는 면역질환의 치료 및 예방을 위한 면역증강용 조성물)

  • Park, Gil-Soon;Chang, In-Ae;Kim, Youn-Chul;Lee, Moo-Hyung;Shin, Hye-Young;Choi, Du-Young;Yun, Yong-Gab;Park, Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.3
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    • pp.700-704
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    • 2007
  • In the recent, increased concern has been focused on the pharmacology and clinical utility of herbal extracts and derivatives as a drug or adjunct to chemotherapy and immunotherapy. Here we investigated the role of the extract of Anethi Fructus in the expression of inflammatory mediators, surface molecule, and related receptors in vitro. In murine macrophage RAW 264.7 cells and peritoneal macrophages of C57BL/6N mice, water extract of Anethi Fructus increased the production of secretary tumor necrosis factor (TNF)-a and Nitric oxide (NO), and the expression level of CD14, LPS co-receptor and CD86, co-stimulatory molecule compared to negative natural extract ex vivo. The water extract of Anethi Fructus increased the production of interferon (IFN)-g from splenocytes. Also, water extract of Anethi Fructus increased ConA-induced cell proliferation. These results suggest that water extract of Anethi Fructus may enhance the immune response through immune modulation of macrophage and lymphocytes.