• Title/Summary/Keyword: modulatory

Search Result 275, Processing Time 0.046 seconds

Modulatory Effects of Chrysanyhemi Flos Pharmacopuncture on Nitric-oxide (NO) Production in Murin Macrophagy Cells

  • Shin, Hwa-Young;Lee, Hyun-Jong;Lee, Yun-Kyu;Lim, Seong-Chul;Kim, Jae-Soo
    • Journal of Pharmacopuncture
    • /
    • v.15 no.1
    • /
    • pp.29-33
    • /
    • 2012
  • Objectives: Much evidence exists that herbs have effective immunomodulatory activities. Chrysanthemi Flos (CF) is effective in clearing heat, reducing inflammation, dropping blood pressure and treating headache and is used as a pharmaceutical raw material for an immune enhancer. The purpose of this study was to investigate the modulatory effect of Chrysanthemi Flos pharmacopuncture on nitric-oxide (NO) production in activating macrophages. Methods: After a murine macrophage cell line, RAW 264.7, was cultured in the presence of lipopolysaccharide (LPS), immune-modulating abilities of CF were evaluated by using NO, interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-${\alpha}$) production and phagocytic activity of macrophages. Results: CF enhanced the activities of macrophages by increasing the phagocytic activity and decreasing NO production. Especially, both LPS and CF, 200 ${\mu}g/ml$, treatment could significantly reduce the NO production, but did not change the production of IL-6 and TNF-${\alpha}$. Conclusion: The results of this study indicate that CF may be of immunomodulatory value, especially for adverse diseases due to increased NO production. It may have potential for use as immunoenhancing pharmacopuncture.

Modulatory Effects of Korean Red Ginseng Extract (Panax ginseng C.A. Meyer) on Cytochrome P450 after Oral Administration to Mice for 14 Days (마우스에 홍삼추출물의 14일간 경구 투여에 따른 약물대사효소 조절능 평가)

  • Kim, Hee-Yeon;Nam, Woong-Shik;Kim, Seong-Hee;Jang, Hye-Ryang;Lee, Mi-Kyoung;Kim, Tae-Wan;Lee, Sang-Kyu
    • Journal of Life Science
    • /
    • v.22 no.8
    • /
    • pp.991-998
    • /
    • 2012
  • Ginseng is one of the most commonly used herbal medicines and health foods. Korean red ginseng (KRG; Panax ginseng C.A. Meyer) extract is known to have potential therapeutic activities, such as anti-viral effects, the amelioration of food allergies, anti-oxidant effects, and obesity reduction. Nevertheless, no reports have been issued the modulatory effects of KRG extract on the activity of cytochrome P450 (CYP). In the present study, we investigated the modulatory effect of KRG extract in vitro and in vivo by using pooled human liver microsomes and male ICR mice. When human liver microsomes were incubated with KRG extract at 0.01-10 mg/ml, CYP1A2, 2B6, 2C19, 2D6, and 3A were not significantly inhibited by KRG extract, although CYP2B6 was slightly inhibited. Mice were orally administered KRG extract at 50, 250, or 500 mg/kg daily for 3, 7, or 14 days. However, the activities of CYPs in mouse livers were not significantly different from those of vehicle-treated controls. In conclusion, no significant ginseng-drug interaction was observed. KRG extract did not significantly modulate the activities of CYPs in vitro or in vivo.

Immuno-Modulatory Activities of Polysaccharides separated from Chrysanthemum zawadskii var. latilobum in Macrophage Cells (구절초(Chrysanthemum zawadskii var. latilobum)에서 분리된 다당류의 대식세포 면역조절 활성)

  • Sung, Nak-Yun;Park, Yoo-Young;Kim, Yi-Eun;Cho, Eun-Ji;Kim, Mi-Hwan;Ryu, Gi-Hyung;Byun, Eui-Hong;Park, Youn-Je
    • The Korean Journal of Food And Nutrition
    • /
    • v.29 no.3
    • /
    • pp.431-437
    • /
    • 2016
  • Macrophages play a pivotal role in the innate and adaptive immune systems. This study investigated the immuno-modulatory activities of polysaccharides separated from Chrysanthemum zawadskii var. latilobum (CZPS) in macrophages. Polysaccharides from Chrysanthemum zawadskii var. latilobum were extracted by the ethanol precipitation method. RAW 264.7 mouse macrophage cell line was treated with CZPS (4 to $128{\mu}g/mL$), and there was no cytotoxicity at a dose below $32{\mu}g/mL$. The levels of nitric oxide (NO) and pro-inflammatory cytokines (tumor necrosis factor (TNF)-${\alpha}$ and interleukin (IL)-6, IL-$1{\beta}$) production in the CZPS treated group ($32{\mu}g/mL$) were $6.5{\pm}0.12{\mu}m$ (NO), $1252.8{\pm}79.85$ (TNF-${\alpha}$), $305.4{\pm}29.41$ (IL-6), and $683.3{\pm}59.71$ (IL-$1{\beta}$), respectively, and they were significantly increased when compared to the control group; $2.2{\pm}0.03{\mu}m$ (NO), $452.3{\pm}38.34$ (TNF-${\alpha}$), $31.7{\pm}5.75$ (IL-6), and $184.1{\pm}11.52$ (IL-$1{\beta}$). Additionally, protein expression of inducible nitric oxide synthase (iNOS) and phosphorylation of MAPKs and NF-${\kappa}B$ expression were significantly increased upon CZPS treatment. Therefore, these results indicated that polysaccharides separated from Chrysanthemum zawadskii var. latilobum (CZPS) may have a potential immunomodulatory activity in macrophages through MAPKs and NF-${\kappa}B$ signaling, and this information is useful for the development of immune enhancing adjuvant materials using a natural ingredient.

PEROXYNITRITE SCAVENGING BY NO MODULATORY ACTIVITIES OF HYDROQUINONE FROM COFFEE

  • Kim, Ae-Ra;Park, Jae-Sue;Chung, Hae-Young
    • Proceedings of the Korean Society of Toxicology Conference
    • /
    • 2001.10a
    • /
    • pp.125-125
    • /
    • 2001
  • Peroxynitrite (ONOO), a potent cytotoxic oxidant formed by the reaction of nitric oxide (ㆍNO) and superoxide radical (ㆍO$_2$), reacts rapidly to cause of oxidization and nitration process. The importance of the regulation of ONOO$^{-}$ has been recently recognized because of the lack of specific endogenous enzymes against ONOO$^{-}$. Coffee that is a complex mixture containing a variety of components has been reported to have both beneficial and hazardous effects.

  • PDF