• Title/Summary/Keyword: ginsenoside Rh2

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Anti-cancer Activities of Ginseng Extract Fermented with Phellinus linteus

  • Lee, Jong-Jin;Kwon, Ho-Kyun;Jung, In-Ho;Cho, Yong-Baik;Kim, Kyu-Joong;Kim, Jong-Lae
    • Mycobiology
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    • v.37 no.1
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    • pp.21-27
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    • 2009
  • In the present study, the anti-cancer effects of ginseng fermented with Phellinus linteus (GFPL) extract were examined through in vitro and in vivo assays. GFPL was produced by co-cultivating ginseng and Phellinus linteus together. Ginsenoside Rg3, Rh1 and Rh2 are important mediators of anti-angiogenesis and their levels in GFPL were enriched 24, 19 and 16 times, respectively, more than that of ginseng itself through the fermentation. GFPL exhibited distinct anti-cancer effects, including growth inhibition of the human lung carcinoma cell line A549, and promotion of immune activation by stimulating nitric oxide (NO) production in Raw 264.7 cells. Further evidence supporting anti-cancer effects of GFPL was its significant prolongment of the survival of B16F10 cancer cell-implanted mice. These results suggest that the GFPL may be a candidate for cancer prevention and treatment through immune activation and anti-angiogenic effects by enriching Rg3, Rh1 and Rh2.

Changes in the Contents of Prosapogenin in the Red Ginseng (Panax ginseng) Depending on Steaming Batches

  • Lee, Sun-A;Jo, Hee-Kyung;Im, Byung-Ok;Kim, Sung-Un;Whang, Wan-Kyun;Ko, Sung-Kwon
    • Journal of Ginseng Research
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    • v.36 no.1
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    • pp.102-106
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    • 2012
  • This study compared the contents of ginsenosides depending on steaming conditions of red ginsengs to provide basic information for developing functional foods using red ginsengs. The red ginseng steamed eight times at $98^{\circ}C$ ranked atop the amounts of prosapogenins ever detected in red ginsengs (ginsenoside $Rg_2$, $Rg_3$, $Rg_5$, $Rg_6$, $Rh_1$, $Rh_4$, $Rk_1$, $Rk_3$, $F_1$, $F_4$, 1.15%) among red ginsengs steamed more than twice. When steamed eight times at $98^{\circ}C$, 2.7 times as much prosapogenins such as ginsenosides $Rg_2$, $Rg_3$, $Rg_5$, $Rg_6$, $Rh_1$, $Rh_4$, $Rk_1$, $Rk_3$, $F_1$, and $F_4$ as those steamed just once at $98^{\circ}C$ was collected. In addition, the red ginsengs steamed eight times at $98^{\circ}C$ contained more amounting ginsenoside $Rg_3$ (0.28%) than that in the red ginseng steamed several times at random. Accordingly, it is recommendable that red ginsengs steamed 8 times, which proved to be the optimal steaming condition, be used rather than those steamed 9 times (black ginsengs), in order to develop red ginseng products of high prosapogenin concentration and high functions.

Increase of Membrane Potential by Ginsenosides in Prostate Cancer and Glioma cells

  • Lee, Yun-Kyung;Im, Young-Jin;Kim, Yu-Lee;Sacket Santosh J.;Lim, Sung-Mee;Kim, Kye-Ok;Kim, Hyo-Lim;Ko, Sung-Ryong;Lm, Dong-Soon
    • Journal of Ginseng Research
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    • v.30 no.2
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    • pp.70-77
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    • 2006
  • Ginseng has an anti-cancer effect in several cancer models. As a mechanism study of ginsenoside-induced growth inhibition in cancer cells, we measured change of membrane potential in prostate cancer and glioma cells by ginsenosides, active constituents of ginseng. Membrane potential was estimated by measuring fluorescence change of DiBAC-Ioaded cells. Among 11 ginsenosides tested, ginsenosides $Rb_2$, $Rg_3$, and $Rh_2$ increased significantly and robustly the membrane potential in a concentration-dependent manner in prostate cancer and glioma cells. Ginsenosides Rc, Ro, and $Rb_1$ slightly increased membrane potential. The ginsenoside-induced membrane potential increase was not affected by treatment with pertussis toxin or U73122. The ginsenoside-induced membrane potential increase was not diminished in $Na^+$-free or $HCO_3^-$-free media. Furthermore, the ginsenoside-induced increase of membrane potential was not changed by EIPA (5-(N-ethyl-N-isopropyl)-amiloride), SITS (4-acetoamido-4'-isothiocyanostilbene-2,2'-disulfonic acid), and omeprazole. In summary, ginsenosides $Rb_2$, $Rg_3$, and $Rh_2$ increased membrane potential in prostate cancer and glioma cells in a GPCR-independent and $Na^+$ independent manner.

Evaluation of glucosidases of Aspergillus niger strain comparing with other glucosidases in transformation of ginsenoside Rb1 to ginsenosides Rg3

  • Chang, Kyung Hoon;Jo, Mi Na;Kim, Kee-Tae;Paik, Hyun-Dong
    • Journal of Ginseng Research
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    • v.38 no.1
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    • pp.47-51
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    • 2014
  • The transformation of ginsenoside Rb1 into a specific minor ginsenoside using Aspergillus niger KCCM 11239, as well as the identification of the transformed products and the pathway via thin layer chromatography and high performance liquid chromatography were evaluated to develop a new biologically active material. The conversion of ginsenoside Rb1 generated Rd, Rg3, Rh2, and compound K although the reaction rates were low due to the low concentration. In enzymatic conversion, all of the ginsenoside Rb1 was converted to ginsenoside Rd and ginsenoside Rg3 after 24 h of incubation. The crude enzyme (b-glucosidase) from A. niger KCCM 11239 hydrolyzed the ${\beta}$-($1{\rightarrow}6$)-glucosidic linkage at the C-20 of ginsenoside Rb1 to generate ginsenoside Rd and ginsenoside Rg3. Our experimental demonstration showing that A. niger KCCM 11239 produces the ginsenoside-hydrolyzing b-glucosidase reflects the feasibility of developing a specific bioconversion process to obtain active minor ginsenosides.

Comparison of Ginsenoside Contents in Different Parts of Korean Ginseng (Panax ginseng C.A. Meyer)

  • Kang, Ok-Ju;Kim, Ji-Sang
    • Preventive Nutrition and Food Science
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    • v.21 no.4
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    • pp.389-392
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    • 2016
  • The present study was conducted to investigate the ginsenoside profiles of the main root, root hair, and leaf of ginseng in order to demonstrate their possible application in medicine. The total ginsenoside content of the leaf was up to 12 times than that in the main root, and the content of protopanaxadiol groups was higher than that of protopanaxatriol groups in all the samples. The leaf was shown to contain high amounts of ginsenosides Rb3 and Rh1, whereas the main root contained large amounts of ginsenosides Rb1 and Rc. Moreover, Rb2, Rb3, and Rg1 were only detected in the root hair, leaf, and main root, respectively. The ginsenoside Re content of Panax ginseng leaf and root hair was 2.6~4 times higher than that of the main root. Therefore, the results indicate that the ginsenoside content of Panax ginseng is higher in the leaf and root hair, and lower in the main root.

Quality of Insambob Containing Added Raw and Red Ginseng Extract (수삼과 홍삼액을 첨가하여 취반한 인삼밥의 품질학적 특성)

  • Lee, Ka-Soon;Kim, Gwan-Hou;Kim, Hyun-Ho;Seong, Bong-Jae;Kim, Sun-Ick;Han, Seung-Ho;Lee, Gyu-Hee
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.41 no.8
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    • pp.1151-1157
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    • 2012
  • This study was conducted to investigate methods of increasing raw ginseng consumption. To accomplish this, Insambob was prepared by adding minced raw ginseng (MRG), ground raw ginseng (GRG) or extracts of red ginseng (RGE). Sensory quality, textural properties, and changes in the ginsenoside and free amino acid composition of the Insambob then were investigated. Insambob containg 50% RGE had the best color, flavor and texture, but that containing 10% GRG had the best taste and overall acceptability. The hardness and adhesiveness were highest for containing 10% GRG and decreased as the amount of ginseng added increased. However, the hardness increased, while the adhesiveness of Insambob containg RGE decreased significantly as the amount added increased. Moreover, the ginsenoside composition changed upon addition of ginseng, with the levels of ginsenoside-Rb1, -Rb2, -Rb3, -Rc, -Re, -Rd, -Rg1, and -Rf decreasing and ginsenoside-Rh2, -Rh1, and -Rg3 newly appearing. Finally, the total free amino acid contents of Insambob increased upon addition of MRG, GRG and RGE.

Change of Neutral Ginsenoside Contents in Red and Fresh Ginseng (Panax ginseng C. A. Meyer) by Hydrolysis (가수분해 처리에 의한 홍삼과 인삼의 중성 Ginsenoside 함량 변화)

  • Han, Jin Soo;Lee, Gang Seon;Tak, Hyun Seong;Kim, Jung-Sun;Ra, Jeong Woo;Choi, Jae Eul
    • Korean Journal of Medicinal Crop Science
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    • v.22 no.1
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    • pp.23-31
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    • 2014
  • This study was carried out to investigate change of ginsenoside contents in red and fresh ginseng according to root part and age by hydrolysis. Neutral total ginsenoside contents by hydrolysis in 6-year main root and lateral root were significantly increased than those by non-hydrolysis, as 41.6 and 32.8%, respectively. However, there was no significant difference in red ginseng. In fresh ginseng, ginsenoside contents of the protopanaxatriol group such as Re, Rf, $Rg_1$, $Rg_2$, and $Rh_1$ were not significantly different, but $Rb_1$, $Rb_2$, $Rb_3$, Rc, and Rd showed significant difference. The increase rate of neutral total ginsenoside content by hydrolysis was higher in epidermis-cortex than stele. Also, the neutral total ginsenoside content was fine root > rhizome > lateral root > main root, respectively. While there was no tendency towards the increase of ginsenoside by hydrolysis with the increase of root age in fine root and rhizome, there was significant decrease in main root and lateral root.

Ginsenoside Rh2 inhibiting HCT116 colon cancer cell proliferation through blocking PDZ-binding kinase/T-LAK cell-originated protein kinase

  • Yang, Jianjun;Yuan, Donghong;Xing, Tongchao;Su, Hongli;Zhang, Shengjun;Wen, Jiansheng;Bai, Qiqiang;Dang, Dongmei
    • Journal of Ginseng Research
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    • v.40 no.4
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    • pp.400-408
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    • 2016
  • Background: Ginsenoside Rh2 (GRh2) is the main bioactive component in American ginseng, a commonly used herb, and its antitumor activity had been studied in previous studies. PDZ-binding kinase/T-LAK cell-originated protein kinase (PBK/TOPK), a serine/threonine protein kinase, is highly expressed in HCT116 colorectal cancer cells. Methods: We examined the effect of GRh2 on HCT116 cells ex vivo. Next, we performed in vitro binding assay and in vitro kinase assay to search for the target of GRh2. Furthermore, we elucidated the underlying molecular mechanisms for the antitumor effect of GRh2 ex vivo and in vivo. Results: The results of our in vitro studies indicated that GRh2 can directly bind with PBK/TOPK and GRh2 also can directly inhibit PBK/TOPK activity. Ex vivo studies showed that GRh2 significantly induced cell death in HCT116 colorectal cancer cells. Further mechanistic study demonstrated that these compounds inhibited the phosphorylation levels of the extracellular regulated protein kinases 1/2 (ERK1/2) and (H3) in HCT116 colorectal cancer cells. In vivo studies showed GRh2 inhibited the growth of xenograft tumors of HCT116 cells and inhibited the phosphorylation levels of the extracellular regulated protein kinases 1/2 and histone H3. Conclusion: The results indicate that GRh2 exerts promising antitumor effect that is specific to human HCT116 colorectal cancer cells through inhibiting the activity of PBK/TOPK.

Analytical Optimum of Ginsenosides according to the Gradient Elution of Mobile Phase in High Performance Liquid Chromatography (HPLC의 이동상 용매조건에 따른 인삼 Ginsenoside 분석)

  • Park, Ji-Yeong;Won, Jun-Yeon;Lee, Chung-Yeol
    • Korean Journal of Medicinal Crop Science
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    • v.15 no.3
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    • pp.215-219
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    • 2007
  • This study was conducted to analyze not only for the quality guaranteed of red ginseng but also for the minor ginsenosides. Although several studies have reported to analyze ginseng saponins, those were focused to major saponins, including 6 to 7 ginsenosides. As increase of interest in medicinal effect of ginseng products, anasis of various ginsenosides in both red and white ginseng are strongly demanded. To perform optital condition of 12 ginsenoside analysis, We controlled HPLC conditions, such as the gradient elution of the mobile phase. We found the adequate separation method for 12 ginse-nosides. The optimum condition was as following : H$_2$O/CH$_3$CN ratios were 82/18, 70/30, 55/45 and 50/50, respectively. Sol-vent flow rate was 1.00 ma/min. Column temperature was kept to 35$^{\circ}$C. UV detector was set to 203 nm.

Inhibition of MMP-1 Expression and Collagen Synthesis Activity of Ultrasonication Processed Ginseng Flower Buds Extract (초음파 처리 인삼화뢰 추출물의 콜라겐 합성작용 및 MMP-1 발현저해)

  • Kim, Shin Jung;Nam, Yun Min;Kim, Yong Min;Ko, Sung Kwon
    • Korean Journal of Pharmacognosy
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    • v.46 no.2
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    • pp.154-159
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    • 2015
  • This study was to evaluate the effect of isopropyl alcohol fraction of ultrasonication processed ginseng flower buds(GFB-IF) on the collagen synthesis activity and inhibition of MMP-1 suppression in UV-irradiated human dermal fibroblasts. The higher contents of ginsenoside Rg2(8.234%), Rh1(5.749%), F4(3.881%) in isopropyl alcohol fraction of ginseng flower buds obtained by ultrasonication process at 600W(100℃) for 16 hours. GFB-IF had collagen synthesis effect. GFB-IF induced a significant dose-dependent decrease in the expression for MMP-1 protein. These results suggest that GFB-IF is a potential candidate for the prevention and treatment of wrinkle improving.