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1Apoptosis and its relationship with cell proliferation,p53,Waf1p21,bcl-2 and c-mycin esophageal carcinogenesis studied with a high-risk population in northern China显示文摘Apoptosisanditsrelationshipwithcelproliferation,p53,Waf1p21,bcl2andcmycinesophagealcarcinogenesisstudiedwithahighriskpopul...WANG LiDong1, ZHOU Qi1, WEI JunPing1, YANG WanCai1, ZHAO Xin1, WANG LiXia1, ZOU Jian Xiang1, GAO ShanShan1, LI YongXin1 and YANG C.S.2Keywords esophageal neoplasms apoptosis precancerous lesions Waf1 p21 gene p53 1998World Journal of Gastroenterology1998,4,4:295
2Mammalian WTAP is a regulatory subunit of the RNA N6-methyladenosine methyltransferase显示文摘包含 methyltransferase 建筑群的象 3 一样的 methyltransferase (METTL3 ) 催化 N6-methyladenosine (m6A ) 形成,一个新奇 epitranscriptomic 标记;然而,这建筑群的性质仍然保持大部分未知。这里,我们报导人的 m6A methyltransferase 建筑群, Wilm 的肿瘤 1 伙伴蛋白质(WTAP ) 和象 14 一样的 methyltransferase (METTL14 ) 的二个新部件。WTAP 与 METTL3 和 METTL14 交往,并且为他们的本地化被要求进在 vivo 与处理因素的 pre-mRNA 并且为 m6A methyltransferase 的催化活动充实的原子点缀。RNA 的多数在 vivo 由 WTAP 和 METTL3 跳了代表包含一致 m6A 主题的 mRNAs。当 WTAP 不在时, METTL3 的 RNA 有约束力的能力强烈被减少,建议 WTAP 可以工作调整到 mRNA 目标的 m6A methyltransferase 建筑群的招募。而且,在有 photoactivatable-ribonucleoside-enhanced crosslinking 和 immunoprecipitation (同等片断) 的联合的 transcriptomic 分析说明那 WTAP 和 METTL3 调整涉及抄写并且 RNA 处理的基因拼接的表示和选择。在 zebrafish 胚胎的调停 Morpholino 的击倒的指向 WTAP 或 METTL3 引起了织物区别缺点并且增加了 apoptosis。这些调查结果提供 WTAP 可以在 m6A methyltransferase 建筑群作为一个规章的子单元工作并且在 RNA 的 epitranscriptomic 规定起一个关键作用的充分证据新陈代谢。Xiao-Li Ping Bao-Fa Sun Lu Wang Wen Xiao Xin Yang Wen-Jia Wang Samir Adhikari Yue Shi Ying Lv Yu-Sheng Chen Xu Zhao Ang Li Ying Yang Ujwal Dahal Xiao-Min Lou Xi Liu Jun Huang Wei-Ping Yuan Xiao-Fan Zhu Tao Cheng Yong-Liang Zhao Xinquan Wang Jannie M Rendtlew Danielsen Feng Liu Yun-Gui Yang 2014Cell Research2014,24,2:244
3FTO-dependent demethylation of N6-methyladenosine regulates mRNA splicing and is required for adipogenesis显示文摘Xu Zhao Ying Yang Bao-Fa Sun Yue Shi Xin Yang Wen Xiao Ya-Juan Hao Xiao-Li Ping Yu-Sheng Chen Wen-Jia Wang Kang-Xuan Jin Xing Wang Chun-Min Huang Yu Fu Xiao-Meng Ge Shu-Hui Song Hyun Seok Jeong Hiroyuki Yanagisawa Yamei Niu Gui-Fang Jia Wei Wu Wei-Min Tong Akimitsu Okamoto Chuan He Jannie M Rendtlew Danielsen Xiu-Jie Wang Yun-Gui Yang 2014Cell Research2014,24,12:109
4Cytoplasmic m6A reader YTHDF3 promotes mRNA translation显示文摘Ang Li Yu-Sheng Chen Xiao-Li Ping Xin Yang Wen Xiao Ying Yang Hui-Ying Sun Qin Zhu Poonam Baidya Xing Wang Devi Prasad Bhattarai Yong-Liang Zhao Bao-Fa Sun Yun-Gui Yang 2017Cell Research2017,27,3:82
5Extensive translation of circular RNAs driven by N6-methyladenosine显示文摘广泛的 pre-mRNA 拼接背在人的 transcriptome 产生众多的圆形的 RNA (circRNAs ) 。然而,这些 circRNAs 的生物功能仍然保持大部分不清楚。这里,我们报导那 N 6-methyladenosine (m 6 一) , RNA 的最丰富的基础修正,在人的房间从 circRNAs 支持蛋白质翻译的有效开始。我们发现那一致 m 6 A 主题在 circRNAs 和单个 m 6 一个地点是足够的驾驶翻译开始。这 m 6A 驱动的翻译要求开始因素 eIF4G2 和 m 6 读者 YTHDF3,并且被 methyltransferase METTL3/14 提高,在热吃惊之上由 demethylase FTO,和 upregulated 禁止了。通过介绍的 polysome 的进一步的分析,计算预言和集体 spectrometry 揭示那 m 6 circRNAs 的 A 驱动的翻译是普遍的,与有翻译潜力的几百内长的 circRNAs。我们的学习扩展人的 transcriptome 的编码风景,并且在对环境应力的细胞的回答建议导出 circRNA 的蛋白质的一个角色。Yun Yang Xiaojuan Fan Miaowei Mao Xiaowei Song Ping Wu6,7 Yang Zhang Yongfeng Jin Yi Yang Ling-Ling Chen Yang Wang Catherine CL Wong Xinshu Xiao Zefeng Wang 2017Cell Research2017,27,5:246
6Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations.Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song 2019Science Bulletin2019,64,6:166
7Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears.Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG 2021Science China(Information Sciences)2021,64,1:122
8Analysis of in vivo patterns of caspase 3 gene expression in primary hepatocellular carcinoma and its relationship to p21^(WAF1) expression and hepatic apoptosis显示文摘AIM To detect the expression of caspase 3gene in primary human hepatocellular carcinoma(HCC)and investigate its relationship to p21WAF1gene expression and HCC apoptosis.METHODS In situ hybridization was employedto determine caspase 3 and p21WAF1expression inHCC.In situ end-labeling was used to detecthepatocytic apoptosis in HCC.RESULTS Twenty-one of 39(53.8%)cases ofHCC were found to express caspase 3transcripts,while 45.2% of HCC failed toexpress caspase 3.Non-cancerous adjacent livertissues showed more positive caspase 3(87.5%,7/8)as compared with HCC(P<0.05).The expression of caspase 3 is correlated withHCC differentiation,72.2%(13/18)ofmoderately to highly differentiated HCC showedcaspase 3 transcripts positive,while only 38.1%of poorly differentiated HCC harbored caspase 3transcripts(P<0.05).No relationship wasfound between caspase 3 expression and tumorsize or grade or metastasis,although 52.5%(5/8)of HCC with metastasis were caspase 3positive and a little higher than that with nometastasis(51.6%,P>0.05).Expression of caspase 3 alone did not affect the apoptosisindex(AI)of HCC.The AI was 7.12%o in caspase3-positive tumors(n=21),while in caspase 3-negative cases(n=18)6.59%0(P>0.05).Expression of caspase 3 clearly segregated withp21WAF1positive tumors as compared withp21WAF1-negative cases(16 of 23,69.6% versus5 of 16,31.3%)with statistical significance(P=0.017).In the cases with positive caspase 3and negative p21WAF1,the Al was found slightlyhigher,but with no statistical significance,thanthat with expression of p21WAF1and caspase 3(7.21‰ vs 6.98‰,P>0.05).CONCLUSION Loss of caspase 3 expressionmay contribute to HCC carcinogenesis,althoughthe expression of caspase 3 does not correlatewell with cell apoptosis in HCC.p21WAF1may bemerely one of the inhibitors which can reducecaspase 3 mediated cell apoptosis in HCCs.Bao Hua Sun Jun Zhang Bao JǜWang Xi Ping Zhao You Kun Wang Zhi Qun Yu Dong Liang Yang Lian Jie Hao Department of Clinical Immunology,Tongji Hospital,Tongji Medical University,Wuhan 430030,Hubei Province,China 2000World Journal of Gastroenterology2000,6,3:65
9Clinical Features of Adult/Adolescent Atopic Dermatitis and Chinese Criteria for Atopic Dermatitis显示文摘Ping Liu Yan Zhao Zhang-Lei Mu Qian-Jin Lu Qian-Jin L U Li Zhang Xu Yao Min Zheng Yi-Wen Tang Xin-Xiano Lu Xiu-Juan xia You-Kun Lin Yu-Zhen Li Cai-Xia Tu Zhi-Rong Yao Jin-Hua Xu Wei Li Wei Lai Hui-Min Yang Hong-Fu Xie Xiu-Ping Han Zhi-Qiang Xie Xiang Nong Zai-Pei Guo Dan-Qi Deng Tong-Xin Shi Jian-Zhong Zhang 2016Chinese Medical Journal2016,,7:64
10Effect of admission hypertriglyceridemia on the episodes of severe acute pancreatitis显示文摘AIM: To investigate the effect of admission hypertriglyceridemia (HTG) on the episodes of severe acute pancreatitis (SAP). METHODS: One hundred and seventy-six patients with SAP were divided into HTG group (n = 45) and control group (n = 131) according to admission triglyceride (TG) 5.65 mmol/L and < 5.65 mmol/L, respectively. Demographics, etiology, underlying diseases, biochemical parameters, Ranson' s score, acute physiology and chronic heath evaluation (APACHE ) score, Balthazar's computed tomography (CT) score, complications and mortality were compared. Correlation between admission TG and 24-h APACHE score was analyzed. RESULTS: SAP patients with HTG were younger (40.8 ± 9.3 years vs 52.6 ± 13.4 years, P < 0.05) with higher etiology rate of overeating, high-fat diet (40.0% vs 14.5%, P < 0.05) and alcohol abuse (46.7% vs 23.7%, P < 0.01), incidence rate of hypocalcemia (86.7% vs 63.4%, P < 0.01) and hypoalbuminemia (84.4% vs 60.3%, P < 0.01), 24-h APACHE score (13.6 ± 5.7 vs 10.7 ± 4.6, P < 0.01) and admission serum glucose (17.7 ± 7.7 vs 13.4 ± 6.1, P < 0.01), complication rate of renal failure (51.1% vs 16.8%, P < 0.01), shock (37.9% vs 14.5%, P < 0.01) and infection (37.4% vs 18.3%, P < 0.01) and mortality (13.1% vs 9.1%, P < 0.01). Logistic regression analysis showed a positive correlation between admission TG and 24-h APACHE score (r = 0 .509, P = 0.004).CONCLUSION: The clinical features of SAP patients with HTG are largely consistent with previous studies. HTG aggravates the episodes of SAP.Li-Hui Deng Ping Xue Qing Xia Xiao-Nan Yang Mei-Hua Wan 2008World Journal of Gastroenterology2008,14,28:59
112018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu 2018Science Bulletin2018,63,23:54
12Trends of foodborne diseases in China: lessons from laboratory- based surveillance since 2011显示文摘Foodborne 疾病是世界范围的最重要的公共健康问题之一。中国在食物链的所有方面面对各种各样、崭新的挑战。从从 2013 ~ 2016 的基于实验室的 foodborne 疾病监视系统的数据,以及不同区域和年龄,能在与多样的特征检测的病原体的模式与差别一起被发现。Vibrio parahaemolyticus 是在中国的传染腹泻的领先的原因,特别在在沿海的区域的成年人之中。沙门氏菌是为实质的社会经济的负担负责的严肃、广泛地分布式的病原体。Shigella 主要在 5 年下面在孩子之中与开发更少的区域在西北中国和内陆省(河南省) 被识别。从从 2011 ~ 2016 报导系统的 foodborne 疾病爆发的数据证明有毒的动物和为大多数死亡负责的植物因素在在西南区域的遥远的区域是有毒的蘑菇(54.7%) 。引起了报导的大多数案例(42.3%) 的生物危险被归因于 V。parahaemolyticus, foodborne 爆发的领先的原因。在这评论,我们在中国总结最近的监视途径到 foodborne 疾病并且在发达国家把结果与那些作比较。Jikai Liu Li Bai Weiwei Li Haihong Han Ping Fu Xiaochen Ma Zhenwang Bi Xiaorong Yang Xiuli Zhang Shiqi Zhen Xiaoling Deng Xiumei Liu Yunchang Guo 2018Frontiers of Medicine2018,12,1:55
13A novel advanced oxidation process to degrade organic pollutants in wastewater:Microwave-activated persulfate oxidation显示文摘This article,for the first time,provides a novel advanced oxidation process based on sulfate radical(SO4. -) to degrade organic pollutants in wastewater:microwave(MW)-activated persulfate oxidation(APO)with or without active carbon(AC).Azo dye acid Orange 7(AO7)is used as a model compound to investigate the high reactivity of MW-APO.It is found that AO7(up to 1000 mg/L)is completely decolorized within 5-7 min under an 800 W MW furnace assisted-APO.In the presence of chloride ion(up to 0.50 mol/L),the decolorization is still 100%completed,though delayed for about 1-2 min.Experiments are made to examine the enhancement by AC.It is exciting to find that the 100%decolorization of AO7(500 mg/L)is achieved within 3 min by MW-APO using 1.0 g/L AC as catalyst,while the degradation effciency maintains at 50%by MW energy without persulfate after about 5 min.Besides the destruction of visible light chromophore band of AO7(484 nm),during MW-APO,two bands in the ultraviolet region(228 nm and 310 nm)are rapidly broken down.The removal of COD is about 83%-95%for 500 mg/L AO7.SO4. -is identified with quenching studies using specific alcohols.Both SO4. -and.OH could degrade AO7,but SO 4 .-plays the dominant role.In a word,MW-APO AC is a new catalytic combustion technology for destruction of organic contamination even for high concentration.YANG Shiying WANG Ping YANG Xin WEI Guang ZHANG Wenyi SHAN Liang 2009Journal of Environmental Sciences2009,21,9:41
14Prevalence of Atrial Fibrillation in China and Its Risk Factors显示文摘Objective To study the prevalence of atrial fibrillation(AF)and the relation with its risk factors in China.Methods A total of 19 363 participants(8635 males and 10 728 females) aged ≥35 years in geographically dispersed urban and rural regions of China were included in this cross-sectional survey.All participants received questionnaire,physical and blood examination.Echocardiography were performed for AF patients found in the survey.Results Of the 19 363 participants,199 were diagnosed with AF.The estimated age-standardized prevalence of AF was 0.78% in men and 0.76% in women.The prevalence of AF in participants aged <60 years was 0.41% in men and 0.43% in women,and was 1.83% in both men and women aged ≥60 years.About 19.0% of males and 30.9% of females with AF were diagnosed with valve disease.Age-and sex-adjusted multivariable logistic regression analysis revealed that myocardial infarction,left ventricular hypertrophy(LVH),obesity,and alcohol consumption were associated with a increased risk of AF(P<0.05).Conclusion The age standardized prevalence of AF is 0.77% in the participants enrolled in the present study.The number of AF cases aged ≥35 years is 5.26 million according to 2010 Chinese Census.Most risk factors for AF,identified mainly in Western countries,are also detected in China.LI Ying WU Yang Feng CHEN Ke Ping LI Xian ZHANG Xing XIE Gao Qiang WANG Fang Zheng ZHANG Shu 2013Biomedical and Environmental Sciences2013,26,9:48
15Studies on Temporal and Spatial Variations of Phytoplankton in Lake Chaohu显示文摘这研究的目的是在乔胡湖,描述浮游植物集合的时间、空间的变化,并且讨论位于这些变化下面的可能的机制在中国的一个大浅发育营养正常促进剂湖,与 cyanobacteria 上的强调。191 浮游植物种类的一个总数被识别,在哪个评价的绿色植物(101 ) 之中第一,由 Cyanophytes (46 ) 和 Bacillariophytes (28 ) 列在后面。平均在全部湖上,最大的全部的海藻的生物资源在 11 月与最小(5.05 mg/l ) 出现在 6 月(19.70 mg/l ) 。以累年平均生物资源, cyanobacteria 贡献了 45.43% 总计海藻的生物资源,跟随的 byChlorophytes (27.14%) ,和 Bacillariophytes (20.6%) 。当硝酸盐(NO3-N ) 和集中顺便坐坐的铵(NH4-N ) 跳时,修理氮的 cyanobacterium (淡水藻类的一种) 快速开发了 dranked 第一以在夏天的生物资源。zooplanktivorous 鱼和小甲壳纲的动物浮游动物的那优势赞成了发展,是可能的不可食细丝状或殖民地形成 cyanobacteria。在整个所有季节的 cyanobacteria 的坚持的优势可以在乔胡湖显示对超营养作用的浮游植物的反应的一个新趋势……Dao-Gui Deng Ping Xie Qiong Zhou Hua Yang Long-Gen Guo 2007Journal of Integrative Plant Biology2007,49,4:36
16Mitochondrial PKM2 regulates oxidative stress-induced apoptosis by stabilizing Bcl2显示文摘Ji Liang Ruixiu Cao Xiongjun Wang Yajuan Zhang Pan Wang Hong Gao Chen Li Fan Yang Rong Zeng Ping Wei Dawei Li Wenfeng Li Weiwei Yang 2017Cell Research2017,27,3:39
17Loess in the Tian Shan and its implications for the development of the Gurbantunggut Desert and drying of northern Xinjiang显示文摘Eolian loess is widely distributed on the various geomorphic surfaces between 700-2400 m a.s.l. on the northern slope of the Tian Shan. It is formed in a synchronous manner with dust transported from the Gurbantunggut Desert in the Junggar Basin. The thickest section of loess was found in the Shawan and Shihezi regions. Paleomagnetic and climatic proxy analyses of over 71 m of a loess-paleosol sequence on the highest terrace of the Qingshui He (River) in the Shawan show that the paleomagnetic Bruhues/Matuy-ama (B/M) boundary lies at the bottom of paleosol S8, at a depth of 69.5 m, and the bottom of the sequence was estimated to be -0.8 Ma. This implies that the extremely dry climatic conditions in the Junggar Basin and the initial Gurbantunggut Desert were present at least by 0.8 Ma. High-resolution grain size series demonstrate that this area and desert expansion experienced two dramatic periods of desert expansions that occurred at -0.65 Ma and 0.5 Ma, respectively; and the subsequent continuousFANG Xiaomin SHI Zhentao YANG Shengli YAN Maodu LI Jijun JIANG Ping’an 2002Chinese Science Bulletin2002,47,16:33
18Prevalence and evolution of drug resistance HIV-1 variants in Henan, China显示文摘To understand the prevalence and evolution of drug resistant HIV strains in Henan China after the implementation of free antiretroviral therapy for AIDS patients. 45 drug nave AIDS patients, 118 AIDS patients who received three months antiretroviral therapy and 124 AIDS patients who received six months antiretroviral treatment were recruited in the southern part of Henan province. Information on general condition, antiretroviral medicines, adherence and clinical syndromes were collected by face to face interview. Meanwhile, 14ml EDTA anticoagulant blood was drawn. CD4/CD8 T cell count, viral load and genotypic drug resistance were tested. The rates of clinical improvement were 55.1% and 50.8% respectively three months and six months after antiretroviral therapy. The mean CD4 cell count after antiretroviral therapy was significantly higher than in drug nave patients. The prevalence rate of drug resistant HIV strains were 13. 9%, 45.4% and 62.7% in drug nave patients, three month treatment patients and six month treatment patients, respectively. The number of resistance mutation codons and the frequency of mutations increased significantly with continued antiretroviral therapy. The mutation sites were primarily at the 103, 106 and 215 codons in the three-month treatment group and they increased to 15 codon mutations in the six-month treatment group. From this result, the evolution of drug resistant strains was inferred to begin with the high level NNRTI resistant strain, and then develop low level resistant strains to NRTIs. The HIV strains with high level resistance to NVP and low level resistance to AZT and DDI were highly prevalent because of the AZT+DDI+NVP combination therapy. These HIV strains were also cross resistant to DLV, EFV, DDC and D4T. Poor adherence to therapy was believed to be the main reason for the emergence and prevalence of drug resistant HIV strains. The prevalence of drug resistant HIV strains was increased with the continu- ation of antiretroviral therapy in the southern part of Henan province. Measures, that could promote high level adherence, provide new drugs and change ART regimens in failing patients, should be implemented as soon as possible.Jing Yun LI Han Ping LI Lin LI Hong LI Zhe WANG Kun YANG Zuo Yi BAO Dao Min ZHUANG Si Yang LIU Yong Jian LIU Hui XING Yi Ming SHAO 2005Cell Research2005,15,11:34
19Synergistic effect of a novel oxymatrine-baicalin combination against hepatitis B virus replication, a smooth muscle actin expression and typeⅠcollagen synthesis in vitro显示文摘AIM: To study the effect of oxymatrine-baicalin combination (OB) against HBV replication in 2.2.15 cells and a smooth muscle actin (αSMA) expression, typeⅠ, collagen synthesis in HSC-T6 cells. METHODS: The 2.2.15 cells and HSC-T6 cells were cultured and treated respectively. HBsAg and HBeAg in the culture supernatants were detected by ELISA and HBV DNA levels were determined by fluorescence quantitative PCR. Total RNA was extracted from HSC-T6 cells and reverse transcribed into cDNA. The cDNAs were amplified by PCR and the quantities were expressed in proportion to p actin. The total cellular proteins extracted from HSC-T6 cells were separated by electrophoresis. Resolved proteins were electrophoretically transferred to nitrocellulose membrane. Protein bands were revealed and the quantities were corrected by p actin. RESULTS: In the 2.2.15 cell culture system, the inhibitory rate against secretion of HBsAg and HBeAg in the OB group was significantly stronger than that in the oxymatrine group (HBsAg, P=0.043; HBeAg, P=0.026; respectively); HBV DNA level in the OB group was significantly lower than that in the oxymatrine group (P = 0.041). In HSC-T6 cells the mRNA and protein expression levels of a SMA in the OB group were significantly lower as compared with those in the oxymatrine group (mRNA, P = 0.013; protein, P-0.042; respectively); The mRNA and protein expression levels of typeⅠcollagen in the OB group were significantly lower as compared with those in the oxymatrine group (mRNA, P<0.01; protein, P<0.01; respectively). CONCLUSION: OB combination has a better effect against HBV replication in 2.2.15 cells and is more effective against a SMA expression and typeⅠcollagen synthesis in HSC-T6 cells than oxymatrine in vitro.Yang Cheng Jian Ping Huai-Dong Xu Hai-Jun Fu Zhao-Hui Zhou 2006World Journal of Gastroenterology2006,12,32:32
20Effects of curcumin on peroxisome proliferator-activated receptor γ expression and nuclear translocation/redistribution in culture-activated rat hepatic stellate cells显示文摘背景 peroxisome 的功能在肝的 fibrogenesis 的激活 proliferator 的受体(PPAR ) 仍然保持大部分未知。Curcumin 是一种自然物质提取形式姜黄 Longa 悬崖并且有许多药理学效果。在通过 PPAR 发信号的肝的星形的房间(HSC ) 是的老鼠的这研究,增长上的 curcumin 的效果,激活和 apoptosis, investigated.Methods HSC 与 Nycodenz 与 Pronase E 和密度坡度 centrifugation 直在肝的 situ 灌注从正常 Sprague Dawley 老鼠被孤立。房间与 curcumin, troglitazone, salvianolic 酸 B 或 GW9662 被对待。HSC 增长上的效果被 MTT 比色法决定。全部的 RNA 被 TRizol 试剂提取,基因层次被半量的 RT-PCR 决定。全部的细胞、原子的蛋白质被 10% 钠 dodecy Isulfate polyacrylamide 胶化电气泳动孤立并且分开。蛋白质层次被西方的污点决定。房间 apoptosis 被染色的 Hoechst 33258 检测。PPAR subcellular 分发被染色的 immunofluorescent 检测。MMP-2 的活动并且 9 被明胶 zymograph assay.Results Curcumin 测量以一种剂量依赖者方式的压制的 HSC 增长。当 HSC 与文化延伸经历了渐渐的激活, PPAR 原子表示水平减少了。Curcumin 起来调整的 PPAR 表示并且显著地禁止了 -SMA 和骨胶原的生产我。PPAR 在细胞质和原子核被表示并且均匀地在 HSC 被散布,但是在 HSC 的原子核积累了并且在 curcumin 处理以后从细胞质消失了。染色的 Hoechst 33258 证明 curcumin 导致了激活文化的 HSC 的 apoptosis 并且显著地增加了 pro-apoptotic Bax 表示并且减少了 anti-apoptotic Bcl-2 表示。Cyclin D1 基因,激活的 NFB p65 蛋白质和 TGFR-I 蛋白质表示由 curcumin 显著地是下面调整的。MMP-2 和 MMP-9 的活动被 curcumin.Conclusions Curcumin 显著地提高能禁止 HSC 的增长和激活,导致激活的 HSC 的 apoptosis 并且提高 MMP-2 和 MMP-9 的活动。curcumin 的效果通过激活 PPAR 信号 transduction 小径被调停并且与 PPAR 原子 translocation/redistribution 联系了。CHENG Yang PING Jian XU Lie-ming 2007Chinese Medical Journal2007,,9:34
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