• 제목/요약/키워드: Medicinal effects

검색결과 2,416건 처리시간 0.032초

한약을 이용한 항암 실험 연구의 경향과 연구 방향 (An Anti-cancer experimental study using herbs)

  • 임성우
    • 대한한방내과학회지
    • /
    • 제22권1호
    • /
    • pp.73-78
    • /
    • 2001
  • After examining and analysing the medicinal herbs of fifty-three experimental papers, we studied their effects on immediate tumors in specific cancers. We did not study the influence on the life span of general cancerous cells. We looked to see if the combined usage of medicinal herbs and anticancer agents inhibited the tumor cell's growth. The serum test and blood cell count test showed if the medicinal herbs inhibited the side effects of the anticancer agent. The test showed that more than 80 percent of used medicinal herbs, brought anticancer activities. However, anticancer experimental studies using medicinal herbs have draw-backs. First, it is difficult to choose a prescription using the standards of Oriental Medicine because we are testing a mouse not a man. Second, because we only observed the indirect effect on the whole physiological regulation caused by the synergic effects of the complex prescription, we are not able to understand the detailed mechanism of the herbs. Therefore; if the anticancer effect of the herbs is proved by the experiment, we need to research the concrete medical action of medicinal herbs and the immunological analysis of herbal medicines on the body.

  • PDF

The Screening of Fermented Medicinal Herbs to Identify Those with Anti-inflammatory Properties

  • Shen, Feng-Yan;Ra, Je-Hveon;Kim, Jin-Ju;Jung, Sung-Ki
    • 대한한방내과학회지
    • /
    • 제30권1호
    • /
    • pp.64-73
    • /
    • 2009
  • Objectives : Consumption of fermented foods has been known to alleviate some of the symptoms of atopy and may limit allergy development, while there are also many medicinal herbs proved to be effective for immunologically-mediated diseases. In this study, we introduced modern zymology to ferment some herbs to see if fermentation has the possibility of increasing the anti-inflammatory effects of medicinal herbs. Interleukin-4 (IL-4) and interferon-gamma $(INF-\gamma)$ have been demonstrated to be the main factors in the pathology of allergic diseases. Methods : We measured the levels of IL-4 and $INF-\gamma$ on concanavalin A-induced BALB/c mice spleen cells, which were subsequently treated with fermented and unfermented herbs. We then compared the fermented groups with unfermented groups to see if the anti-inflammatory effects of the herbs were influenced by fermentation. Results and Conclusions : Our results showed that fermentation had the potential to increase the anti-inflammatory effects of some medicinal herbs, and Astragalus membranaceus and Salvia miltiorrhiza would be the most suitable medicinal herbs for fermentation among the herbs in this study.

  • PDF

Studies of the effects and mechanisms of ginsenoside Re and Rk3 on myelosuppression induced by cyclophosphamide

  • Han, Jiahong;Xia, Jing;Zhang, Lianxue;Cai, Enbo;Zhao, Yan;Fei, Xuan;Jia, Xiaohuan;Yang, He;Liu, Shuangli
    • Journal of Ginseng Research
    • /
    • 제43권4호
    • /
    • pp.618-624
    • /
    • 2019
  • Background: Ginsenoside Re (Re) is one of the major components of Panax ginseng Meyer. Ginsenoside $Rk_3$ ($Rk_3$) is a secondary metabolite of Re. The aim of this study was to investigate and compare the effects and underlying mechanisms of Re and $Rk_3$ on cyclophosphamide-induced myelosuppression. Methods: The mice myelosuppression model was established by intraperitoneal (i.p.) injection of cyclophosphamide. Peripheral blood cells, bone marrow nucleated cells, and colony yield of hematopoietic progenitor cells in vitro were counted. The levels of erythropoietin, thrombopoietin, and granulocyte macrophage colony-stimulating factor in plasma were measured by enzyme-linked immunosorbent assay. Bone marrow cell cycle was performed by flow cytometry. The expression of apoptotic protein bcl-2, bax, and caspase-3 was detected by Western blotting. Results: Both Re and $Rk_3$ could improve peripheral blood cells, bone marrow nucleated cell counts, thymus index, and spleen index. Furthermore, they could enhance the yield of colonies cultured in vitro and make the levels of granulocyte macrophage colony-stimulating factor, erythropoietin, and thrombopoietin normal, reduce the ratio of $G_0/G_1$ phase cells, and increase the proliferation index. Finally, Re and $Rk_3$ could upregulate the expression of bcl-2, whereas they could downregulate the expression of bax and caspase-3. Conclusion: Re and $Rk_3$ could improve the hematopoietic function of myelosuppressed mice. The effect of $Rk_3$ was superior to that of Re at any dose. Regulating the levels of cytokines, promoting cells enter the normal cell cycle, regulating the balance of bcl-2/bax, and inhibiting the expression of caspase-3 may be the effects of Re and $Rk_3$ on myelosuppression.

골질 보호 작용이 있는 수종 생약 추출액의 래디칼 소거능 및 DNA 보호 효과 (Radical Scavenging Activities and Protective Effects against Oxidative Damage to DNA of Extracts from Medicinal Plants with known Osteoprotective Effects)

  • 최성숙;임동술;이숙연
    • 생약학회지
    • /
    • 제40권2호
    • /
    • pp.143-149
    • /
    • 2009
  • Among aging diseases, the most basic problem is a decrease in bone mineral density. Patients with osteoporosis are steadily increasing in the world. This study was investigated to show the relationship between osteoporotic effects and oxidative damage. Water extracts of 15 medicinal plants and ethanol extracts of 14 medicinal plants with known anti-osteoporotic effects, were tested for their radical scavenging activity using DPPH, ABTS, SRSA and FRAP assay. Water extract of Cornus officinalis, Rubus coreanus and ethanol extract of Rubus coreanus, Viscium album var. coloratum, Cimicifuga heracleifolia showed about 15-20 mg/g of total phenolic contents. Water extract of Cornus officinalis, Rubus coreanus and Epimedium koreanum showed high radical scavenging activity. Ethanol extract of Drynaria fortunei, Cornus officinalis, Rubus coreanus, Gentiana scabra and Astragalus membranaceus showed high radical scavenging activity. Water extract of Drynaria fortunei, Cornus officinalis, Nelumbo nucifera, Epimedium koreanum, and Gentiana scabra showed very strong protective effect against oxidative damage to DNA. These results suggest the correlation between anti-osteoporotic effects and antioxidative effects.

약용식물 추출물이 저온식품의 미생물에 대한 항균효과 (Antimicrobial Activity of Medicinal Herbs Extracts on Cooling Preservation Foods.)

  • 양의주;한정;이인선
    • 한국식품저장유통학회지
    • /
    • 제6권1호
    • /
    • pp.110-114
    • /
    • 1999
  • In order to study the natural preservation of food, sixteen kinds of medicinal plants were extracted by 80% methanol and then antimicrobial activity of the extracts was investigated against various kinds of microorganisms. The extracts of medicinal plants showed good effects of antimicrobial activity against bacteria except Bacillus cereus, Escherichia coli O-157. Especially, the extracts of Artemisia annua, Aster scaber, Solidago virganrea shower good inhibitory effects on the growth of bacteria to the cooling preservation foods, and Artemisia annua was decreased of the TMA(Trimethylamine) test. the result thus indicate that Artemisia annua, Aster scaber, Solidago fischeri extract inhibitory effects on cooling preservation foods, so that it may be potential as a natural preservatives.

  • PDF

밀리타리스 동충하초 추출물의 항염활성 효과 (Anti-inflammatory effects of Cordyceps militaris extracts)

  • 최재훈;김금숙;이승은;조재한;성기호;이대영;김승유;이태호;노형준
    • 한국버섯학회지
    • /
    • 제10권4호
    • /
    • pp.249-253
    • /
    • 2012
  • 밀리타리스 동충하초 추출물은 체내 염증반응을 유도하는 peroxinitrite를 밀리타리스 동충하초 추출물 $128{\mu}g/ml$ 처리로 peroxinitrite를 $60.77{\pm}1.67%$ 저해시켜 뛰어난 저해능을 가지는 것으로 free radical의 생성을 억제하며, Raw 264.7 세포에 LPS $1{\mu}g/ml$을 처리하여 NO 생성이 $3.75{\pm}0.20{\mu}M$까지 증가하였으나 밀리타리스 동충하초 추출물 $32{\mu}g/ml$ 처리군에서 $3.21{\pm}0.10{\mu}M$, $64{\mu}g/ml$ 처리군에서 $3.07{\pm}0.13{\mu}M$로 농도 의존적, 유의적으로 감소 시켰다. 또한, 이로 인해 발현되는 염증 유전자 COX-2의 발현을 유의적으로 저해 한 것을 Western blot으로 확인 하였다. 그러므로, 밀리타리스 동충하초 추출물은 항염증소재로의 가능성이 충분하다고 사료된다.

Antioxidant Activities and Inhibition Effects on Oxidative DNA Damage of Callus Derived from Abeliophyllum distichum Nakai

  • Jang, Tae-Won;Choi, Ji-Soo;Mun, Jeong-Yun;Im, Jong-Yun;Park, Min-Jeong;Lee, Seung Hyun;Kim, Do-Wan;Park, Jae-Ho
    • 한국자원식물학회:학술대회논문집
    • /
    • 한국자원식물학회 2018년도 춘계학술발표회
    • /
    • pp.74-74
    • /
    • 2018
  • Abeliophyllum distichum is Korea Endemic Plants and its genetic resources found from Korea only. Bioactivities of A. distichum such as antioxidant, anti-cancer, and anti-inflammatory studies have been proved through many researches. Whereas, there are no studies on the biological activity of its callus extracts. In this study, we investigated the antioxidant activities of callus extracts derived from A. distichum and its inhibitory effect on oxidative DNA damage. The antioxidant activities were assessed using radical scavenging assays with DPPH, ABTS, and reducing power assay and the inhibitory effects on oxidative DNA damage were measured using ${\varphi}-174$ RF I plasmid DNA cleavage assay. In addition, callus extracts derived from A. distichum showed high antioxidant acitivties and no cytotoxicity in NIH/3T3. Also, it has significantly suppressed expression of ${\gamma}$-H2AX and p53 protein and mRNA levels in NIH/3T3 cells exposed to oxidative stress. Therefore, the callus extracts derived from A. distichum has potential antioxidant activity that can provide protective effects against the oxidative DNA damage caused by free radicals. This study suggest that it is valuable as cosmetics and medicine for antioxidant and cancer preventive materials.

  • PDF