• 제목/요약/키워드: Chinese Medical Academy

검색결과 266건 처리시간 0.027초

Human Papillomavirus Infection and Prognostic Predictors in Patients with Oropharyngeal Squamous Cell Carcinoma

  • Huang, Hui;Zhang, Bin;Chen, Wen;Zhou, Shuang-Mei;Zhang, Yong-Xia;Gao, Li;Xu, Zhen-Gang;Qiao, You-Lin;Tang, Ping-Zhang
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권3호
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    • pp.891-896
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    • 2012
  • This study focused on infection rates and subtypes of human papillomavirus (HPV) in patients with oropharyngeal squamous cell carcinoma (OSCC), and the relationship between HPV status and prognosis of the disease. We evaluated sixty-six OSCC patients who met the enrollment criteria during the period from January 1999 to December 2009. The presence or absence of oncogenic HPV types in tumors was determined using the SPF10 LiPA25 assay. Overall survival (OS) and disease specific survival (DSS) for HPV positive and HPV negative patients were estimated using Kaplan-Meier analysis. The Cox regression model was applied for multivariate analysis. HPV-DNA was detected in 11(16.7%) of all specimens. Among them, 7 were type HPV-16, while other types were HPV-16/11, HPV-35, HPV-58/52, and HPV-33/52/54. Patients with HPV positive tumors were more likely to be female, non-smokers and non-drinkers (p=0.002, 0.001 and 0.001, respectively). After a median follow-up of 24.5 months, patients with HPV positive tumors had significantly better overall survival (HR=0.106[95%CI=0.014-0.787], p=0.016,) and disease specific survival (HR=0.121[95%CI=0.016-0.906], p=0.030). Patients with HPV positive OSCC have significantly better prognosis than patients with HPV negative tumors. HPV infection is an independent prognostic factor.

Application of machine learning and deep neural network for wave propagation in lung cancer cell

  • Xing, Lumin;Liu, Wenjian;Li, Xin;Wang, Han;Jiang, Zhiming;Wang, Lingling
    • Advances in nano research
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    • 제13권3호
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    • pp.297-312
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    • 2022
  • Coughing and breath shortness are common symptoms of nano (small) cell lung cancer. Smoking is main factor in causing such cancers. The cancer cells form on the soft tissues of lung. Deformation behavior and wave vibration of lung affected when cancer cells exist. Therefore, in the current work, phase velocity behavior of the small cell lung cancer as a main part of the body via an exact size-dependent theory is presented. Regarding this problem, displacement fields of small cell lung cancer are obtained using first-order shear deformation theory with five parameters. Besides, the size-dependent small cell lung cancer is modeled via nonlocal stress/strain gradient theory (NSGT). An analytical method is applied for solving the governing equations of the small cell lung cancer structure. The novelty of the current study is the consideration of the five-parameter of displacement for curved panel, and porosity as well as NSGT are employed and solved using the analytical method. For more verification, the outcomes of this reports are compared with the predictions of deep neural network (DNN) with adaptive optimization method. A thorough parametric investigation is conducted on the effect of NSGT parameters, porosity and geometry on the phase velocity behavior of the small cell lung cancer structure.

Adverse Effects of Preserved Vegetables on Squamous Cell Carcinoma of Esophagus and Precancer Lesions in a High Risk Area

  • Song, Qing-Kun;Zhao, Lin;Li, Jun;He, Yu-Ming;Jiang, Cui-Ping;Jiang, Hai-Dong;Qu, Chen-Xu
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권2호
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    • pp.659-663
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    • 2013
  • Introduction: Squamous cell carcinoma of esophagus (ESCC) is one of the most common cancers in China. Preserved vegetables are processed foods and consumed in high amounts in the high risk areas for ESCC. This study aimed to investigate the relationships of preserved vegetable consumption with ESCC and precancer lesions. Methods: Cases from Yanting cancer hospital with pathological diagnosis of primary cancer, along with controls and individuals diagnosed with precancer lesions by endoscopy with iodine staining were interviewed. Trained staff collected data on dietary habits 1 year before the interview. An unconditional logistic regression model was used to estimate odds ratios of preserved vegetable consumption for precancer lesions and cancer. Results: Adjusting for potential confounders, intake of preserved vegetables (OR=2.92, 95%CI 1.32~6.47) and longer intake period (OR=5.78, 95%CI 2.26~14.80) were associated with higher risk of ESCC. Compared with lowest intake frequency, the highest was associated with a 3.0-fold risk for precancer lesions and 3.59-fold risk for ESCC (both p<0.05). Conclusion: Consumption of preserved vegetables is a risk factor for esophageal lesions in high risk areas. The carcinogenicity of preserved vegetables needs investigation in further studies and the public health strategies for reducing the consumption might be initiated in high risk areas.

Epidemiological Features of Human Papillomavirus (HPV) Infection among Women Living in Mainland China

  • Li, Jing;Huang, Rong;Schmidt, Johannes E.;Qiao, You-Lin
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권7호
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    • pp.4015-4023
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    • 2013
  • Cancer of the cervix is the third most common cancer in women worldwide, more than 85% of the cases occurring in developing countries such as China. In China, since a national cancer registry is already set up but with geographically limited data generated, the burden of cervical cancer is believed to be underestimated. High-risk human papillomavirus (HR-HPV) prevalence among women attending routine cervical cancer screening programs has been shown to correlate well with cervical cancer incidence rates based on independently obtained HPV prevalence data as well as findings for the worldwide cervical cancer burden. Therefore, reviewing data on HR-HPV prevalence in population-based screening studies and hospital-based case studies will be important in the context of better understanding the cervical cancer burden and for the evaluation of the potential impact of HPV vaccination in the country. With the advent of prophylactic vaccines, significant progress is likely to be made in cervical cancer prevention. This article reviews available data on the HPV epidemiology over a 12-year time period (2001-2012) in mainland China under different epidemiological aspects: by age group of study population, by ethnicity, by geographic area, as well as time period. The authors also review the potential acceptability of HPV vaccination among Chinese women.

Post-Transcriptional Control of Tropoelastin in Aortic Smooth Muscle Cells Affects Aortic Dissection Onset

  • Qi, You-Fei;Shu, Chang;Xiao, Zhan-Xiang;Luo, Ming-Yao;Fang, Kun;Guo, Yuan-Yuan;Zhang, Wen-Bo;Yue, Jie
    • Molecules and Cells
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    • 제41권3호
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    • pp.198-206
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    • 2018
  • Aortic dissection (AD) is a catastrophic disease with high mortality and morbidity, characterized with fragmentation of elastin and loss of smooth muscle cells. Although AD has been largely attributable to polymorphisms defect in the elastin-coding gene, tropoelastin (TE), other undermined factors also appear to play roles in AD onset. Here, we investigated the effects of post-transcriptional control of TE by microRNAs (miRNAs) on elastin levels in aortic smooth muscle cells (ASMC). We found that miR-144-3p is a miRNA that targets TE mRNA in both human and mouse. Bioinformatics analyses and dual luciferase reporter assay showed that miR-144-3p inhibited protein translation of TE, through binding to the 3'-UTR of the TE mRNA. Interestingly, higher miR-144-3p levels and lower TE were detected in the ASMC obtained from AD patients, compared to those from non-AD controls. In a mouse model for human AD, infusion of adeno-associated viruses (serotype 6) carrying antisense for miR-144-3p (asmiR-144-3p) under CAG promoter significantly reduced the incidence and severity of AD, seemingly through enhancement of TE levels in ASMC. Thus, our data suggest an essential role of miR-144-3p on the pathogenesis of AD.

중국에 있어서 약용식물의 산업적 발달 (Industrial Development of Medicinal Plants in China)

  • 고문원;백기엽;팽용;초배근
    • 한국약용작물학회지
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    • 제7권4호
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    • pp.316-324
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    • 1999
  • 중국에서 약용식물은 서양의학과 동등한 수준으로 인간의 건강증진과 유지 및 치료를 위해 매우 중요한 역할을 수행하고 있는데 본 논문에서는 중국에서 약용식물의 산업적 발달에 관해서 간략히 고찰하였다. 현계 중국에서 약용식물로 이용되고 있는 식물은 11, 118종에 달한다. 이들 약용식물이 가공되지 않고 천연산물로 이용되는 연간 총 생산액은 60억달러에 달하며 조제형태로 이용되는 총 생산액은 30억달러에 달한다. 지금까지 약용식물로부터 100여종 이상의 신약이 개발되었으며 천연자원에 의존하려는 세계적인 추세를 감안한다면 약용식물의 중요성은 더욱 증대할 것이며 산업적 개발이 인류의 건강을 유지하는데 결정적 역할을 할 것으로 기대된다.

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Visualizing the distributions and spatiotemporal changes of metabolites in Panax notoginseng by MALDI mass spectrometry imaging

  • Sun, Chenglong;Ma, Shuangshuang;Li, Lili;Wang, Daijie;Liu, Wei;Liu, Feng;Guo, Lanping;Wang, Xiao
    • Journal of Ginseng Research
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    • 제45권6호
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    • pp.726-733
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    • 2021
  • Background: Panax notoginseng is a highly valued medicinal herb used widely in China and many Asian countries. Its root and rhizome have long been used for the treatment of cardiovascular and hematological diseases. Imaging the spatial distributions and dynamics of metabolites in heterogeneous plant tissues is significant for characterizing the metabolic networks of Panax notoginseng, and this will also provide a highly informative approach to understand the complex molecular changes in the processing of Panax notoginseng. Methods: Here, a high-sensitive MALDI-MS imaging method was developed and adopted to visualize the spatial distributions and spatiotemporal changes of metabolites in different botanical parts of Panax notoginseng. Results: A wide spectrum of metabolites including notoginsenosides, ginsenosides, amino acids, dencichine, gluconic acid, and low-molecular-weight organic acids were imaged in Panax notoginseng rhizome and root tissues for the first time. Moreover, the spatiotemporal alterations of metabolites during the steaming of Panax notoginseng root were also characterized in this study. And, a series of metabolites such as dencichine, arginine and glutamine that changed with the steaming of Panax notoginseng were successfully screened out and imaged. Conclusion: These spatially-resolved metabolite data not only enhance our understanding of the Panax notoginseng metabolic networks, but also provide direct evidence that a serious of metabolic alterations occurred during the steaming of Panax notoginseng.

韓國大巡真理會《典經》之宗教醫療研究 (The Study of Religious Medical Treatment in the Canonical Scripture of Daesoon Jinrihoe in Korea)

  • 鍾雲鶯
    • 대순사상논총
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    • 제39집
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    • pp.249-274
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    • 2021
  • 本文乃以韓國大巡真理會《典經》為主, 探討姜甑山的宗教醫療。姜甑山的醫療原理建立在「身心一體」的整體觀, 意即醫治疾病, 必先醫心, 也就是他所說的「大病之藥, 安心安身」。按摩是姜甑山經常運用的物理治療, 他運用按摩消除病患因氣鬱不順所導致腿部與腹部的諸多疾病 ; 而四物湯, 小柴胡湯, 木瓜, 生地黃是他常用的藥劑與藥材。道法醫療是姜氏宗教醫療的特色, 根據《典經》的記錄, 有正氣祛病, 驅除精怪, 代病與轉病, 更衣除病, 用藥於地等, 結合符咒, 藉以醫治百姓, 尤其用藥於地是他獨創的道法醫療方式。

Diversity and Functions of Endophytic Fungi Associated with Roots and Leaves of Stipa purpurea in an Alpine Steppe at Qinghai-Tibet Plateau

  • Yang, Xiaoyan;Jin, Hui;Xu, Lihong;Cui, Haiyan;Xin, Aiyi;Liu, Haoyue;Qin, Bo
    • Journal of Microbiology and Biotechnology
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    • 제30권7호
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    • pp.1027-1036
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    • 2020
  • Stipa purpurea is a unique and dominant herbaceous plant species in the alpine steppe and meadows on the Qinghai-Tibet Plateau (QTP). In this work, we analyzed the composition and diversity of the culturable endophytic fungi in S. purpurea according to morphological and molecular identification. Then, we investigated the bioactivities of these fungi against plant pathogenic fungi and 1-aminocyclopropane-1-carboxylate deaminase (ACCD) deaminase activities. A total of 323 fungal isolates were first isolated from S. purpurea, and 33 fungal taxa were identified by internal transcribed spacer primers and grouped into Ascomycota. The diversity of endophytic fungi in S. purpurea was significantly higher in roots as compared to leaves. In addition, more than 40% of the endophytic fungi carried the gene encoding for the ACCD gene. The antibiosis assay demonstrated that 29, 35, 28, 37 and 34 isolates (43.9, 53.1, 42.4, 56.1, and 51.5%) were antagonistic to five plant pathogenic fungi, respectively. Our study provided the first assessment of the diversity of culture-depending endophytic fungi of S. purpurea, demonstrated the potential application of ACCD activity and antifungal activities with potential benefits to the host plant, and contributed to high biomass production and adaptation of S. purpurea to an adverse environment.

Chemical Composition of Main Cordyceps species in Korea

  • Hong, In-Pyo;Nam, Sung-Hee;Sung, Gyoo-Byung;Lee, Kwang-Gil;Cho, Soo-Muk;Seok, Soon-Ja;Hur, Hyeon;Lee, Min-Woong;Guo, Shun-Xing
    • International Journal of Industrial Entomology and Biomaterials
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    • 제18권1호
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    • pp.13-17
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    • 2009
  • The caterpillar-shaped Chinese medicinal mushroom (DongChongXiaCao) looks like a worm in the winter and like a grass in the summer. The fruiting body has been regarded as popular folk or effective medicines used to treat human diseases such as asthma, bronchial and lung inflammation, and kidney disease. The fruiting bodies of Cordyceps militaris, C. pruinosa and Paecilomyces tenuipes that formed on the living silkworm (Bombyx mori) host were used in this examination. This study was carried out to investigate the soluble sugar, amino acid and fatty acid profiles in the fruiting-bodies. Soluble sugars such as glycerol, glucose, mannitol and sucrose were mainly found in the fruiting bodies of C. militaris, C. pruinosa and P. tenuipes. Total soluble sugar content was 29.23 mg/g in C. militaris, 8.61 mg/g in C. pruinosa and 24.00 mg/g 1in P. tenuipes on dry weight basis. Total free amino acid content was 14.09 mg/g 1in C. militaris, 34.60 mg/g in C. pruinosa and 17.09 mg/g in P. tenuipes. The content of oleic acid in fatty acids was above high more than 30% regardless of species.