• 제목/요약/키워드: Natural medicines

검색결과 376건 처리시간 0.03초

생약의 물 추출물에 대한 혈소판 활성화인자 수용체 결합 저해활성 검색 (Screening of the Platelet Activating Factor(PAF) Antagonistic Activities on Herbal Medicines)

  • 한병훈;양현옥;김용철;한용남
    • 약학회지
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    • 제38권4호
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    • pp.462-468
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    • 1994
  • Hot aqueous extracts of 130 herbal medicines were screened for platelet activating factor (PAE) receptor binding antagonistic activity using rabbit platelet. The results suggested that 4 medicinal plants including Biota orientalis are potential sources of PAF antagonists.

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Cordycepin: pharmacological properties and their relevant mechanisms

  • Baoyan, Fan;Haibo, Zhu
    • 셀메드
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    • 제2권2호
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    • pp.14.1-14.7
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    • 2012
  • Cordycepin, a nucleoside derivative, was extracted from $Cordyceps$ $sinensis$, and then proved to be a bioactive compound present in traditional Chinese medicine Cordyceps. Early investigations revealed cordycepin possessed anti-microbial activity mainly by inhibiting nucleic acid synthesis. Although cordycepin is not used as antibacterial agents in clinic, its other pharmacological effects and possible mechanisms have gradually been deeply studied. This review serves to summarize the research progress of cordycepin.

하고초(夏枯草, Prunellae Herba)로부터 Ursolic acid의 함량 분석 (Quantitative Determination of Ursolic acid from Prunellae Herba)

  • 김주선;이경순;장승엽;원도희;강삼식
    • 생약학회지
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    • 제31권4호
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    • pp.416-420
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    • 2000
  • Ursolic acid was isolated from Prunellae Herba (Prunella vulgaris var. lilacina) and identified by direct comparison with an authentic sample. A method of analysis for the evaluation of ursolic acid was developed based on extraction of ground plant material, followed by quantitative determination using capillary gas chromatography of the TMS derivative. Quantitative analysis by GC after derivatisation under mild silylating conditions showed 0.31% ursolic acid in 20 samples collected throughout regions of Korea while no ursolic acid was detected in the samples of the whole plant of Thesium chinense, a substitute for Prunellae Herba in southern regions of Korean peninsula.

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A study on the history and present state of toxicity of herbal medicine

  • Lee, Young-Seob;Kang, Ok-Hwa;Choi, Jang-Gi;Kim, Nan-Young;Lee, Joo-Hee;Lee, Ki-Nam;Kwon, Dong-Yeul
    • Journal of Evidence-Based Herbal Medicine
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    • 제2권2호
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    • pp.39-44
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    • 2009
  • All medicines are poisonous, and there are none free from poison. Thus, all things may be regarded as poisonous. And poison and medicine is the same one of which actions differ from each other. Medicine may be good medicine or poison according to doses, whether chemical medicine or herbal one. Herbal medicine falls into the category of natural materials. From ancient times humankind has Been using animals and plants as food, but on the other hand, chemical medicine is unfamiliar relatively to natural materials. Somecine is unfamilis, absorbed into the human boan, are transformed and help deemicfication. Other medicines protect the gastric mucous membrane and are demulcent, and inhibithemica materials from being absorbed. In some cases, ine is unfamilis function as deemicfiers in combination withhemica materials, and remove the toxicity and side effect caused by drug properties. Herbal medicine causes less side effects, as compared to chemical one, and thus can work effectively. As the case stands, some deem that herbal medicine does not cause problems despite high dose and long-term use because it is nontoxic or low-toxic. However, herbal medicine may be also poisonous though it is used at a very low dose. Even a deadly poison may produce therapeutic results satisfactorily without side effects, on condition that it is used properly.

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Antimicrobial Effect of Natural Medicines on Bacterial Species from Soybean Curd Residue

  • Kim, Seong-Sun;Jin, Yu-Mi;Jeon, Yong-Deok;Jin, Jong-Sik
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 추계학술대회
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    • pp.102-102
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    • 2019
  • Soybean curd residue (SCR), known as a major waste product of soybean processing, is the water-insoluble fraction which is removed by filtration during soymilk production. For these reasons, SCR was usually considered as food waste. SCR might have a good potential as a functional food material, value-added processing and utilization. SCR contains high-quality protein and consists of a good source of nutrients, including protein, oil, dietary fiber, minerals, along with un-specified monosaccharides and oligosaccharides. Also, SCR might be a potential source of low cost protein for human consumption. However, SCR could be a source of bacterial contamination when during food processing. This study was aimed to investigate antibacterial capacity of natural product through detecting relationship between SCR and microbial. We isolated five bacterial strains from SCR and elucidated antibacterial activity of nature medicines to extend storage capacity of food made with SCR. Thus, the extract which showed antibacterial effects in Corynebacterium calloonae and Raoultella amithinolytica is a combination of seven kinds of extracts: Glycyrrhiza uralensis, Cudrania tricuspidata, Salvia miltiorrhiza Bunge, blueberry, Acorus gramineus, Ginkgo biloba L., Camellia sinensis. This study suggested that antibacterial activities of natural medicines could be used for extension of storage capacity in SCR-contained food.

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Rapid characterization of ginsenosides in the roots and rhizomes of Panax ginseng by UPLC-DAD-QTOF-MS/MS and simultaneous determination of 19 ginsenosides by HPLC-ESI-MS

  • Wang, Hong-Ping;Zhang, You-Bo;Yang, Xiu-Wei;Zhao, Da-Qing;Wang, Ying-Ping
    • Journal of Ginseng Research
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    • 제40권4호
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    • pp.382-394
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    • 2016
  • Background: Ginsenosides are the characteristic and principal components which manifest a variety of the biological and pharmacological activities of the roots and rhizomes of Panax ginseng (GRR). This study was carried out to qualitatively and quantitatively determine the ginsenosides in the cultivated and forest GRR. Methods: A rapid and sensitive ultra-high-performance liquid chromatography coupled with diode-array detector and quadrupole/time of flight tandem mass spectrometry (UPLC-DAD-QTOF-MS/MS) was applied to the qualitative analysis of ginsenosides and a 4000 QTRAP triple quadrupole tandem mass spectrometer (HPLC-ESI-MS) was applied to quantitative analysis of 19 ginsenosides. Results: In the qualitative analysis, all ingredients were separated in 10 min. A total of 131 ginsenosides were detected in cultivated and forest GRR. The method for the quantitative determination was validated for linearity, precision, and limits of detection and quantification. 19 representative ginsenosides were quantitated. The total content of all 19 ginsenosides in the forest GRR were much higher than those in the cultivated GRR, and were increased with the growing ages. Conclusion: This newly developed analysis method could be applied to the quality assessment of GRR as well as the distinction between cultivated and forest GRR.

수 종의 생약제제가 함유된 치약이 치주질환에 미치는 영향 (Effects of Toothpaste Containing Several Natural Medicines on Periodontal Disease)

  • 유승한;홍성우;김탁;박영채;김흥식;유용욱;유형근;신형식
    • Journal of Periodontal and Implant Science
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    • 제29권4호
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    • pp.737-749
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    • 1999
  • Recently many researches on plaque removal effect and therapeutic effect of toothpaste containing natural medicines are being studied in early periodontal diseases. The purpose of this study is to examine the clinical and microbiological effect of toothpaste containing natural medicines such as camomile, rhatany, myrrh,sage oil, glycyrrhetinic acid and vitamin E. Sixty three subjects with gingivitis were divided into an experimental group which performed normal oral hygiene procedure with toothpaste containing natural medicines and vitamine E and a control group which also performed normal oral hygiene procedure with Syrinmed? toothpaste without containing herbal extracts and vitamine E. At the baseline, 2 weeks, and 4 weeks, subjects were analyzed for clinical study and microbiological study. After 2 weeks and 4 weeks use of their respective toothpastes, statistically significant decreases of gingival index, plaque index, and bleeding index were shown in both the control and the experimental group. The degree of decrease was more significant in the experimental group than the control group. A statistically significant decrease of pocket depth, and gingival crevicular fluid were shown in both the control and lie experimental group. A statistically significant increase of cocci was shown in both the control and the experimental group, the degree of increase was more significant in the experimental group than control group. A statistically significant decrease ofnon-motile rods, and motile rods were shown in both the control and the experimental group, the degree of decrease was more significant in the experimental group than the control group. Spirochetes increased weakly in both the control and the experimental group but a statistic significance was not shown. A statistically significant decrease of anaerobic bacteria, aerobic bacteria, and black pigmented Bacteroides were shown in both the control and the experimental group. These results indicate that the use of toothpaste containing natural medicines is effective in the prevention and the treatment of periodontal diseases.

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Biosynthesis of rare 20(R)-protopanaxadiol/protopanaxatriol type ginsenosides through Escherichia coli engineered with uridine diphosphate glycosyltransferase genes

  • Yu, Lu;Chen, Yuan;Shi, Jie;Wang, Rufeng;Yang, Yingbo;Yang, Li;Zhao, Shujuan;Wang, Zhengtao
    • Journal of Ginseng Research
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    • 제43권1호
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    • pp.116-124
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    • 2019
  • Background: Ginsenosides are known as the principal pharmacological active constituents in Panax medicinal plants such as Asian ginseng, American ginseng, and Notoginseng. Some ginsenosides, especially the 20(R) isomers, are found in trace amounts in natural sources and are difficult to chemically synthesize. The present study provides an approach to produce such trace ginsenosides applying biotransformation through Escherichia coli modified with relevant genes. Methods: Seven uridine diphosphate glycosyltransferase (UGT) genes originating from Panax notoginseng, Medicago sativa, and Bacillus subtilis were synthesized or cloned and constructed into pETM6, an ePathBrick vector, which were then introduced into E. coli BL21star (DE3) separately. 20(R)-Protopanaxadiol (PPD), 20(R)-protopanaxatriol (PPT), and 20(R)-type ginsenosides were used as substrates for biotransformation with recombinant E. coli modified with those UGT genes. Results: E. coli engineered with $GT95^{syn}$ selectively transfers a glucose moiety to the C20 hydroxyl of 20(R)-PPD and 20(R)-PPT to produce 20(R)-CK and 20(R)-F1, respectively. GTK1- and GTC1-modified E. coli glycosylated the C3-OH of 20(R)-PPD to form 20(R)-Rh2. Moreover, E. coli containing $p2GT95^{syn}K1$, a recreated two-step glycosylation pathway via the ePathBrich, implemented the successive glycosylation at C20-OH and C3-OH of 20(R)-PPD and yielded 20(R)-F2 in the biotransformation broth. Conclusion: This study demonstrates that rare 20(R)-ginsenosides can be produced through E. coli engineered with UTG genes.

Anticonvulsant potential of some traditional medicinal plants

  • Asif, Mohammad
    • 셀메드
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    • 제4권1호
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    • pp.1.1-1.13
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    • 2014
  • Epilepsy has now become the most serious brain disorder. A number of synthetic antiepileptic drugs are available in practice, however their effectiveness does not grip true with the entire population suffering from epilepsy. Traditional systems of medicine are popular in developing countries and most of the population relies on traditional medicines for their primary health care need. Medicinal plants to be an important source of traditional medicines. Various plants are used for the treatment of epilepsy in traditional system of medicines and various plants are yet to be scientifically investigated. Phyto-constituents have been the basis of treatment of human diseases including epilepsy. Herbal products are extensively used for the treatment of many diseases worldwide and where allopathic fails or has severe side effects. Psycho neural drugs are also have very serious side effects like physical dependence, tolerance, deterioration of cognitive function and effect on respiratory, digestive and immune system. So the treatments through herbal medicines are widely used across the world due to their wide applicability and therapeutic efficacy with least side effects, which in turn has accelerated the research regarding natural therapy. In this review we have summarized some herbal anti-epileptics.