• 제목/요약/키워드: Chinese Medical Academy

검색결과 270건 처리시간 0.024초

Compounds from a jellyfish-derived fungus Aspergillus fumigates

  • Tao, Guan-yu;Liu, Juan;Jung, Jee H.;Guo, Wei;Wen, Xiao-qiong;Liu, Yonghong
    • Natural Product Sciences
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    • 제22권2호
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    • pp.82-86
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    • 2016
  • Six compounds were isolated from the secondary metabolites of the jellyfish-derived fungus Aspergillus fumigates, whose structures were identified by chemical methods and spectroscopic analysis as pseurotin F1 (1), azaspirofurans B (2), $(22E,\;24R)-24-methyl-5{\alpha}-cholesta-7,22-diene-3{\beta},5,6{\beta}-triol$ (3), $5{\alpha},8{\alpha}-epidioxyergosta-6,22-dien-3{\beta}-o1$ (4), $cyclo-({\small{L}}-Pro-{\small{L}}-Tyr)$ (5), fumitremorgin C (6). The compounds 1 - 5 were isolated from the fungus Aspergillus fumigates for the first time. The isolated compounds (1 - 6) were evaluated for antibiotic activity and cytotoxicity against six bacterial strains and ten human tumor cell lines, respectively.

The Fingerprinting of Huangjinju Powder for Injection on Chinese Patent Medicine by XRD Fourier

  • Pan, Yan-Li;Zhang, Gui-Jun;Gong, Ning-Bo;Wu, Yun-Shan;Lu, Yang;Luo, Rong;Choi, Ho-Young
    • 한국약용작물학회지
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    • 제14권2호
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    • pp.117-123
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    • 2006
  • The purpose is to study the identification method of Huangjinju powder for injection and the medicinal materials by the fingerprint off-ray Diffraction Fourier (XRDF). We used the same method on both the studying of Huangjinju and the medicinal materials. Then we selected a few components alignment to compare. We analyzed the data by setting up the deviation $d({\AA})$ as ${\pm}0.05$ to calculate the rate of special mark on the sample (Px) and on the patent (P). The special XRDF of Huangjinju$[d({\AA})/(I/I_0)]$ have 5 peaks that have not expressed in medicinal materials. Therefore Px is 22.73%. Flos Trollii Chinensis has 3 special marks and Px is 17.65%. Flos Chrysanthemi Indici has 1 special mark and Px is 3.57%. Its coincided interplanar spacing with the patent is $2.907{\AA}$. Flos Lonicerae Japonicae has 6 special marks and Px is 23.08%. Its special mark in the patent are 4.95/14 and 4.50/15, respectively. The P is 9.09%. Its coincided interplanar spacing with the patent is $2.910{\AA}\;and\;3.05{\AA}$, respectively. The number of special XRDF mark peaks of baicalin is 9 and Px is 18.37%. Its coincided interplanar spacing with the patent is $2.910{\AA}$. It has visible mark and specificity adopting XRDF fingerprint to identify Huangjinju and medicinal materials. Establishing the quality standard is a synthetic index that depends both on special marks in the medicinal materials of the patent and on the coincidence peak data.

An Energy-Efficient Mobility-Supporting MAC Protocol in Wireless Sensor Networks

  • Peng, Fei;Cui, Meng
    • Journal of Communications and Networks
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    • 제17권2호
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    • pp.203-209
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    • 2015
  • Although mobile applications are an essential characteristic of wireless sensor networks, most existing media access control (MAC) protocols focus primarily on static networks. In these protocols, fixed periodic neighbor discovery and schedule updating are used to connect and synchronize neighbors to provide successful data transmission; however, they cannot adapt to mobile speed variation and degrade the network performance dramatically. In this paper, we propose a mobile-supporting mechanism for MAC protocols, in which the decision to update the neighbors of a mobile node is made adaptively according to the mobile speed. Analysis and simulation results demonstrate that the mechanism efficiently avoids the disconnection of amobile node from its neighbors and achieves a better performance as compared with fixed periodic neighbor discovery.

부정배본법재치료중 유중적작용 (Action of the Therapeutic Principle of Strengthening the Body Resistance and Restoring Normal Functioning of the Body to Consolidate the Constitution in Tumor Treatment)

  • 심성혜;임홍생
    • 동의생리병리학회지
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    • 제19권4호
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    • pp.897-902
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    • 2005
  • Internal deficiency of vital Qi is origination of cancer and root cause of its development from the viewpoint of traditional Chinese medicine(TCM). For about 40 years, China has developed a combined system of TCM and Western medical system in treatment of cancers, laying stress on the therapeutic principle of strengthening the body resistance and restoring normal functioning of the body to consolidate the constitution (Fu Zheng Pei Ben). According to the results of the latest clinical and experimental studies, Chinese medicine not only increases curative effectiveness, but also reduces the side effect caused by the toxic, radio and chemical treatment of cancer cases in the western medical system as well as various complications. Long-term taking Chinese herbal medicine prevents recurrence and metastasis of tumor, and heightens long-term curative effectiveness after western medical treatments. It also helps to relieve symptoms, improve the quality of life, and prolong life of terminal cancer patients who have already lost opportunities of western medical treatments. In addition, it can prevent and cure premonitory symptoms of cancer.

중국 중의약 미래 예측 과제(1990${\sim}$ 2010)평가 연구 (Assessment on Forecasting Study of Traditional Chinese Medicine(1990${\sim}$2010))

  • 이경구;배순희;신현규
    • 대한한의학회지
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    • 제28권1호통권69호
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    • pp.117-125
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    • 2007
  • Objectives : This study was to assess the Traditional chinese medicine forecast subjects that had been expected to be accomplished over 20 year (1990-2010). The result will help Korea medical society to compare the status of Korean Medicine with that of Traditional Chinese Medicine and to plan for polices and studies on Korean Traditional Medicine. Methods : Assessed targets were the subjects selected by the China Academy of Chinese Medical Sciences, which are classified into 6 fields. These were assigned by the quantity of related theses. Reference source is CAJ(China academic Journal) of CNKI (China National Knowledge infrastructure). Results : 1) Forecast subject ratio by field was basic theory 31% / clinical research 17% / Chinese herbal drug 17% / acupuncture and moxa 17% / Tui-na(推拿) and Qi-gong(氣功) 9% / medical information, literature history 6%. 2) Accomplishment percentage (full accomplishment) by field was medical information, literature, history 60% / basic theory 50% / acupuncture and moxa 46% Tui-na(推拿) and Qi-gong(氣功) 38% / chinese herbal drug 25% / clinical research 23%. Conclusions : 78% of all forecast subjects were accomplished or partially accomplished. According to 'accomplishment percentage by field', while those in the medical information, literature, history field were most realized of all, those in the clinical research field were least realized.

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A Multi-center Survey of HPV Knowledge and Attitudes Toward HPV Vaccination among Women, Government Officials, and Medical Personnel in China

  • Zhao, Fang-Hui;Tiggelaar, Sarah M.;Hu, Shang-Ying;Zhao, Na;Hong, Ying;Niyazi, Mayinuer;Gao, Xiao-Hong;Ju, Li-Rong;Zhang, Li-Qin;Feng, Xiang-Xian;Duan, Xian-Zhi;Song, Xiu-Ling;Wang, Jing;Yang, Yun;Li, Chang-Qin;Liu, Jia-Hua;Liu, Ji-Hong;Lu, Yu-Bo;Li, Li;Zhou, Qi;Liu, Jin-Feng;Xu, Li-Na;Qiao, You-Lin
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권5호
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    • pp.2369-2378
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    • 2012
  • Objectives: To assess knowledge of HPV and attitudes towards HPV vaccination among the general female population, government officials, and healthcare providers in China to assist the development of an effective national HPV vaccination program. Methods: A cross-sectional epidemiologic survey was conducted across 21 urban and rural sites in China using a short questionnaire. 763 government officials, 760 healthcare providers, and 11,681 women aged 15-59 years were included in the final analysis. Data were analyzed using standard descriptive statistics and logistic regression. Results: Knowledge of HPV among the general female population was low; only 24% had heard of HPV. Less than 20% of healthcare providers recognized sexually na$\ddot{i}$ve women as the most appropriate population for HPV vaccination. There was high acceptance of the HPV vaccine for all categories of respondents. Only 6% of women were willing to pay more than US $300 for the vaccine. Conclusions: Aggressive education is necessary to increase knowledge of HPV and its vaccine. Further proof of vaccine safety and efficacy and government subsidies combined with increased awareness could facilitate development and implementation of HPV vaccination in China.

Effects of sleep deprivation on coronary heart disease

  • Wei, Ran;Duan, Xiaoye;Guo, Lixin
    • The Korean Journal of Physiology and Pharmacology
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    • 제26권5호
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    • pp.297-305
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    • 2022
  • The presence of artificial light enables humans to be active 24 h a day. Many people across the globe live in a social culture that encourages staying up late to meet the demands of various activities, such as work and school. Sleep deprivation (SD) is a severe health problem in modern society. Meanwhile, as with cardiometabolic disease, there was an obvious tendency that coronary heart disease (CHD) to become a global epidemic chronic disease. Specifically, SD can significantly increase the morbidity and mortality of CHD. However, the underlying mechanisms responsible for the effects of SD on CHD are multilayered and complex. Inflammatory response, lipid metabolism, oxidative stress, and endothelial function all contribute to cardiovascular lesions. In this review, the effects of SD on CHD development are summarized, and SD-related pathogenesis of coronary artery lesions is discussed. In general, early assessment of SD played a vital role in preventing the harmful consequences of CHD.

Nano-Hydroxyapatite Modified by Grafting Polylactide and its Tissue Engineering Application

  • Zhuang, Xiuli;Zhang, Peibiao;Qiu, Xueyu;Chen, Xuesi;Jing, Xiabin
    • 한국고분자학회:학술대회논문집
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    • 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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    • pp.182-182
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    • 2006
  • PLLA grafted Hydroxyapatite / polylactide (g-HA/PLA) composites were prepared by three grafting methods. The modified particles (p-HA) were dispersed more uniformly in the PLLA matrix than pure n-HA. The p-HA/PLLA composites exhibited better mechanical properties and thermal stability than the n-HA/PLLA composites. The composites also demonstrated improved cell compatibility due to the good biocompatibility of the HAP nanoparticles and the more uniform distribution of the PLLA-grafted HAP nanoparticles on the film surface. All of these results indicated that the p-HAP/PLLA nano-composites might have a promising medical application in bone repair and in bone tissue-engineering.

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