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224篇 您的检索式:作者名="Wei Ru"
    题名 作者 年代 出处 被引量
1Breast cancer incidence and mortality in women in China: temporal trends and projections to 2030显示文摘Objective:Breast cancer was the most common cancer and the fifth cause of cancer deaths among women in China in 2015.The evaluation of the long-term incidence and mortality trends and the prediction of the future burden of breast cancer could provide valuable information for developing prevention and control strategies.Methods:The burden of breast cancer in China in 2015 was estimated by using qualified data from 368 cancer registries from the National Central Cancer Registry.Incident cases and deaths in 22 cancer registries were used to assess the time trends from 2000 to 2015.A Bayesian age-period-cohort model was used to project the burden of breast cancer to 2030.Results:Approximately 303,600 new cases of breast cancer(205,100 from urban areas and 98,500 from rural areas)and 70,400 breast cancer deaths(45,100 from urban areas and 24,500 from rural areas)occurred in China in 2015.Urban regions of China had the highest incidence and mortality rates.The most common histological subtype of breast cancer was invasive ductal carcinoma,followed by invasive lobular carcinoma.The age-standardized incidence and mortality rates increased by 3.3%and 1.0%per year during 2000–2015,and were projected to increase by more than 11%until 2030.Changes in risk and demographic factors between 2015 and 2030 in cases are predicted to increase by approximately 13.3%and 22.9%,whereas deaths are predicted to increase by 13.1%and 40.9%,respectively.Conclusions:The incidence and mortality of breast cancer continue to increase in China.There are no signs that this trend will stop by 2030,particularly in rural areas.Effective breast cancer prevention strategies are therefore urgently needed in China.Shaoyuan Lei Rongshou Zheng Siwei Zhang Ru Chen Shaoming Wang Kexin Sun Hongmei Zeng Wenqiang Wei Jie He 2021Cancer Biology & Medicine2021,18,3:53
2Global patterns of breast cancer incidence and mortality:A population-based cancer registry data analysis from 2000 to 2020显示文摘Background:Breast cancer is the most commonly diagnosed cancer and leading cause of cancer death among women worldwide but has patterns and trends which vary in different countries.This study aimed to evaluate the global patterns of breast cancer incidence and mortality and analyze its temporal trends for breast cancer prevention and control.Methods:Breast cancer incidence and mortality data in 2020 were obtained from the GLOBOCAN online database.Continued data from the Cancer Incidence in Five Continents Time Trends,the International Agency for Research on cancer mortality and China National Central Cancer Registry were used to analyze the time trends from 2000 to 2015 through Joinpoint regression,and annual average percent changes of breast cancer incidence and mortality were calculated.Association between Human Development Index and breast cancer incidence and mortality were estimated by linear regression.Results:There were approximately 2.3 million new breast cancer cases and 685,000 breast cancer deaths worldwide in 2020.Its incidence and mortality varied among countries,with the age-standardized incidence ranging from the highest of 112.3 per 100,000 population in Belgium to the lowest of 35.8 per 100,000 population in Iran,and the age-standardized mortality from the highest of 41.0 per 100,000 population in Fiji to the lowest of 6.4 per 100,000 population in South Korea.The peak age of breast cancer in some Asian and African countries were over 10 years earlier than in European or American countries.As for the trends of breast cancer,the age-standardized incidence rates significantly increased in China and South Korea but decreased in the United States of America(USA)during 2000-2012.Meanwhile,the age-standardized mortality rates significantly increased in China and South Korea but decreased in the United Kingdom,the USA,and Australia during 2000 and 2015.Conclusions:The global burden of breast cancer is rising fast and varies greatly among countries.The incidence and mortality rates of breast cancer increased rapidly in China and South Korea but decreased in the USA.Increased health awareness,effective prevention strategies,and improved access to medical treatment are extremely important to curb the snowballing breast cancer burden,especially in the most affected countries.Shaoyuan Lei Rongshou Zheng Siwei Zhang Shaoming Wang Ru Chen Kexin Sun Hongmei Zeng Jiachen Zhou Wenqiang Wei 2021Cancer Communications2021,41,11:55
3Diagnosis and treatment recommendations for pediatric respiratory infection caused by the 2019 novel coronavirus显示文摘Since December 2019,an epidemic caused by novel coronavirus (2019-nCoV) infection has occurred unexpectedly in China.As of 8 pm,31 January 2020,more than 20 pediatric cases have been reported in China.Of these cases,ten patients were identified in Zhejiang Province,with an age of onset ranging from 112 days to 17 years.Following the latest National recommendations for diagnosis and treatment of pneumonia caused by 2019-nCo V (the 4th edition) and current status of clinical practice in Zhejiang Province,recommendations for the diagnosis and treatment of respiratory infection caused by 2019-nCoV for children were drafted by the National Clinical Research Center for Child Health,the National Children's Regional Medical Center,Children's Hospital,Zhejiang University School of Medicine to further standardize the protocol for diagnosis and treatment of respiratory infection in children caused by 2019-nCoV.Zhi-Min Chen Jun-Fen Fu Qiang Shu Ying-Hu Chen Chun-Zhen Hua Fu-Bang Li Ru Lin Lan-Fang Tang Tian-Lin Wang Wei Wang Ying-Shuo Wang Wei-Ze Xu Zi-Hao Yang Sheng Ye Tian-Ming Yuan Chen-Mei Zhang Yuan-Yuan Zhang 2020World Journal of Pediatrics2020,16,3:45
4Effect of resveratrol on Treg/Th17 signaling and ulcerative colitis treatment in mice显示文摘AIM:To determine the therapeutic efficacy of resveratrol on ulcerative colitis(UC) and its underlying mechanisms.METHODS:The mouse UC model was developed using 5% dextran sulfate sodium.Mice were randomly divided into four groups:normal control,UC model group,resveratrol low-dose group(RLD; 50 mg/kg per day),and resveratrol high-dose group(RHD; 100 mg/kg per day).RESULTS:The results showed that RLD regulates Treg/Th17 balance mainly through reducing the number of Th17 cells,whereas RHD regulates Treg/Th17 balance through both downregulating the number of Th17 cells and upregulating the number of Treg cells.Resveratrol can also regulate the level of plasma and intestinal mucosal cytokines including interleukin(IL)-10,transforming growth factor-β1,IL-6,and IL-17.The expressions of hypoxia inducible factor(HIF)-1α,mammalian target of rapamycin(m TOR),and signal transducer and activator of transcription 3 weresignificantly decreased in the intestinal tissues of mice treated with resveratrol.CONCLUSION:The therapeutic efficacy of resveratrol in UC is dose dependent and closely associated with the regulation of Treg/Th17 balance and the HIF-1α/mT OR signaling pathway.Jun Yao Cheng Wei Jian-Yao Wang Ru Zhang Ying-Xue Li Li-Sheng Wang 2015World Journal of Gastroenterology2015,21,21:23
5A high-quality genome assembly of quinoa provides insights into the molecular basis of salt bladder-based salinity tolerance and the exceptional nutritional value显示文摘Changsong Zou Aojun Chen Lihong Xiao Heike M Muller Peter Ache Georg Haberer Meiling Zhang Wei Jia Ping Deng Ru Huang Daniel Lang Feng Li Dongliang Zhan Xiangyun Wu Hui Zhang Jennifer Bohm Renyi Liu Sergey Shabala Rainer Hedrich Jian-Kang Zhu Heng Zhang 2017Cell Research2017,27,11:22
6Colorectal cancer burden and trends:Comparison between China and major burden countries in the world显示文摘Objective:To summarize the colorectal cancer(CRC)burden and trend in the world,and compare the difference of CRC burden between other countries and China.Methods:Incidence and mortality data were extracted from the GLOBOCAN2018 and Cancer Incidence in Five Continents.Age-specific incidence trend was conducted by Joinpoint analysis and average annual percent changes were calculated.Results:About 1.85 million new cases and 0.88 million deaths were expected in 2018 worldwide,including 0.52 million(28.20%)new cases and 0.25 million(28.11%)deaths in China.Hungary had the highest age-standardized incidence and mortality rates in the world,while for China,the incidence and mortality rates were only half of that.CRC incidence and mortality were highly correlated with human development index(HDI).Unlike the rapid increase in Republic of Korea and the downward trend in Canada and Australia,the age-standardized incidence rates by world standard population in China and Norway were rising gradually.The age-specific incidence rate in the age group of 50-59 years in China was increasing rapidly,while in Republic of Korea and Canada,the fastest growing age group was 30-39 years.Conclusions:The variations of CRC burden reflect the difference of risk factors,as well as levels of HDI and screening(early detection activities).The burden of CRC in China is high,and the incidence of CRC continues to increase,which may lead to a sustained increase in the burden of CRC in China in the future.Screening should be expanded to control CRC,and focused on young people in China.Jiachen Zhou Rongshou Zheng Siwei Zhang Hongmei Zeng Shaoming Wang Ru Chen Kexin Sun Minjuan Li Jianhua Gu Guihua Zhuang Wenqiang Wei 2021Chinese Journal of Cancer Research2021,33,1:16
7Cancer statistics in Chinese older people,2022:current burden,time trends,and comparisons with the US,Japan,and the Republic of Korea显示文摘Largely due to population ageing,the cancer burden from older people has been rising,which imposed considerable pressure on current Chinese healthcare system.We provide comprehensive information about cancer burden of Chinese older people based on the most recent data from National Central Cancer Registry of China.The logarithmic linear regression was used to project the current cancer burden in 2022,and Joinpoint regression was used for temporal trend analysis from 2000 to 2017.We also estimated cancer statistics of older people in the US,Japan and the Republic of Korea for comparisons.It is estimated that 2.79 million cases and 1.94 million deaths occur for Chinese older people,representing 55.8%and 68.2%of cases and deaths in all population in 2022.The overall cancer incidence rate gradually increased among older women,while the mortality rates declined for both sexes.Notably,approximately 10.0%of all cases and 17.7%of all deaths are from people aged over 80 years,and cancer incidence and mortality in this age group showed upward trends for women.Lung cancer and digestive cancers are the leading cancer types for Chinese older people.Compared with other countries,China has lower incidence rates but higher mortality rates for older people.The rapidly growing burden of prostate cancer,breast cancer,colorectal cancer,and declines in esophageal cancer,stomach cancer,and liver cancer among older people indicate the cancer pattern in China is being in a transition stage to that in developed countries.Our findings imply that it should be the national health priority to meet the growing demands for cancer diagnosis,treatment and care services from the older people as the rapid population ageing in next few decades.Wen Ju Rongshou Zheng Siwei Zhang Hongmei Zeng Kexin Sun Shaoming Wang Ru Chen Li Li Wenqiang Wei Jie He 2023Science China(Life Sciences)2023,66,5:15
8Integration of micro-supercapacitors with triboelectric nanogenerators for a flexible self-charging power unit显示文摘便携式、便携的电子设备的快速的发展为灵活、有效的精力收获和存储单位增加了需求。通常,这些作为分离部件独立被造并且使用。此处,我们建议雕刻的简单、划算的激光为制作一个灵活自我控告的 micro-supercapacitor 力量单位(SCMPU ) 的技术,由集成摩擦电, nanogenerator (TENG ) 和 micro-supercapacitor (MSC ) 穿进一台单个设备。SCMPU 能被周围的机械运动直接控告。我们表明 SCMPU 的能力连续地驱动轻射出的二极管和商业温湿计。这调查可以支持持续自我动力的系统的开发并且为 supercapacitors 提供一个有希望的新研究应用程序。Jianjun Luo Feng Ru Fan Tao Jiang Zhiwei Wang Wei Tang Cuiping Zhang Mengmeng Liu Guozhong Cao Zhong Lin Wang 2015Nano Research2015,8,12:14
9Small molecule compound induces chromatin de-condensation and facilitates induced pluripotent stern cell generation显示文摘Xiaoyuan Wei Yueting Chen Yongyu Xu YangZhan Ru Zhang Min Wang Qiuhong Hua Haifeng Gu Fajun Nan Xin Xie 2014Journal of Molecular Cell Biology2014,8,5:13
10Stress-mediated p38 activation promotes somatic cell reprogramming显示文摘环境调停压力的改编在生活的进化起必要作用。细胞的改编机制通常包含染色质结构,抄写, mRNA 稳定性和翻译的规定,它最后在基因表示导致有效变化。全球 epigenetic 变化也涉及体的细胞的 reprogramming 进导致的 pluripotent 由定义因素的茎(iPS ) 细胞。这里,我们报导象 hyperosmosis 那样的那个环境压力不仅便于四调停因素的 reprogramming,而且提高二或一导致因素的 iPS 房间代。导致 Hyperosmosis 的 p38 激活在这个过程起一个关键作用。组成的活跃 p38 模仿 hyperosmosis 的积极效果,当主导的否定 p38 和 p38 禁止者堵住 hyperosmosis 的效果时。进一步的学习显示调停压力的 p38 激活可以由减少全球 DNA methylation 水平并且提高 pluripotency 基因的表示支持 reprogramming。我们的结果表明象 hyperosmosis 一样的简单环境应力怎么帮助经由细胞内部的发信号和 epigenetic 调整改变房间的命运。Xinxiu Xu Quan Wang Yuan Long Ru Zhang Xiaoyuan Wei Mingzhe Xing Haifeng Gu Xin Xie 2013Cell Research2013,23,1:12
11Effects of water salinity and N application rate on water- and N-use efficiency of cotton under drip irrigation显示文摘In arid and semi-arid regions, freshwater scarcity and high water salinity are serious and chronic problems for crop production and sustainable agriculture development. We conducted a field experiment to evaluate the effect of irrigation water salinity and nitrogen(N) application rate on soil salinity and cotton yield under drip irrigation during the 2011 and 2012 growing seasons. The experimental design was a 3×4 factorial with three irrigation water salinity levels(0.35, 4.61 and 8.04 dS/m) and four N application rates(0, 240, 360 and 480 kg N/hm2). Results showed that soil water content increased as the salinity of the irrigation water increased, but decreased as the N application rate increased. Soil salinity increased as the salinity of the irrigation water increased. Specifically, soil salinity measured in 1:5 soil:water extracts was 218% higher in the 4.61 dS/m treatment and 347% higher in the 8.04 dS/m treatment than in the 0.35 dS/m treatment. Nitrogen fertilizer application had relatively little effect on soil salinity, increasing salinity by only 3%–9% compared with the unfertilized treatment. Cotton biomass, cotton yield and evapotranspiration(ET) decreased significantly in both years as the salinity of irrigation water increased, and increased as the N application rate increased regardless of irrigation water salinity; however, the positive effects of N application were reduced when the salinity of the irrigation water was 8.04 dS/m. Water use efficiency(WUE) was significantly higher by 11% in the 0.35 dS/m treatment than in the 8.04 dS/m treatment. There was no significant difference in WUE between the 0.35 dS/m treatment and the 4.61 dS/m treatment. The WUE was also significantly affected by the N application rate. The WUE was highest in the 480 kg N/hm2 treatment, being 31% higher than that in the 0 kg N/hm2 treatment and 12% higher than that in the 240 kg N/hm2 treatment. There was no significant difference between the 360 and 480 kg N/hm2 treatments. The N use efficiency(NUE) was significantly lower in the 8.04 dS/m treatment than in either the 4.61 dS/m or the 0.35 dS/m treatment. There was no significant difference in NUE between the latter two treatments. These results suggest that irrigation water with salinity <4.61 dS/m does not have an obvious negative effect on cotton production, WUE or NUE under the experimental conditions. Application of N fertilizer(0–360 kg N/hm2) could alleviate salt damage, promote cotton growth, and increase both cotton yield and water use efficiency.Wei MIN ZhenAn HOU LiJuan MA Wen ZHANG SiBo RU Jun YE 2014Journal of Arid Land2014,6,4:12
12Diet and gastric cancer:a case-control study in Fujian Province,China显示文摘NTRODUCTIONChangleandFuqingcitiesarelocatedinthesoutheasternpartofFujianProvince,Chinawithahighincidenceofgastriccancer.Howev...YE Wei Min 1, YI Ying Nan 1, LUO Ren Xia 2, ZHOU Tian Shu 3, LIN Ru Tao 1 and CHEN Gui Dong 3 1998World Journal of Gastroenterology1998,4,6:12
13Chinese Stroke Association guidelines for clinical management of cerebrovascular disorders:executive summary and 2019 update of the management of high-risk population显示文摘Aim Cerebrovascular disease is the leading cause of death and disability in China,causing a huge burden among patients and their families.Hence,stroke prevention is critical,especially in the high-risk population.Here,we present the evidence-based guideline suitable for the Chinese population.Methods Literature search of PubMed and Cochrane library(from January 1964 to June 2019)was done.After thorough discussion among the writing group members,recommendations were listed and summarised.This guideline was reviewed and discussed by the fellow writing committees of the Chinese Stroke Association’s Stroke.Results This evidence-based guideline was written in three parts:controlling the risk factors of stroke,utilisation of antiplatelet agents and assessing the risks of first-ever stroke.All recommendations were listed along with the recommending classes and levels of evidence.Conclusions This guideline provides recommendations for primary prevention of cerebrovascular disease among high-risk population in China.Controlling related risk factors,appropriately using antiplatelet agents,assessing the risk of developing first-ever stroke should help reduce the rate of cerebrovascular disease in China.Yilong Wang Shangrong Han Haiqiang Qin Huaguang Zheng Bin Jiang Yong Cao Yuan Gao Ling Guan Qian Jia Yong Jiang Yuming Jiao Shuya Li Yapeng Li Zixiao Li Wei Liu Xiaojuan Ru Dongling Sun Haixin Sun Penglian Wang Tingting Wang Lixia Zong Lei Guo Xuewei Xie Yuming Xu Yuyuan Xu Xiaomeng Yang Yingying Yang Mengyuan Zhou Wenzhi Wang Chinese Stroke Association Stroke Council Guideline Writing Committee 2020Stroke & Vascular Neurology2020,5,3:11
14Evaluating efficacy of screening for upper gastrointestinal cancer in China:a study protocol for a randomized controlled trial显示文摘Objective: To evaluate the efficacy and feasibility of screening procedure for upper gastrointestinal cancer in both high-risk and non-high-risk areas in China.Setting: Seven cities/counties, representing three economical-geographical regions(Eastern, Central and Western) in China, were selected as screening centers: three in high-risk areas and four in non-high-risk areas.Participants: Villages/communities in these seven centers regarded as clusters were randomly assigned to either intervention group(screening by endoscopic examination) or control group(with normal community care) in a 1:1ratio stratified by each center. Eligible participants are local residents aged 40–69 years in the selected villages/communities with no history of cancer or endoscopic examination in the latest 3 years who are mentally and physically competent. Those who are not willing to take endoscopic examination or are unwilling to sign the consent form are excluded from the study. Totally 140,000 participants will be enrolled.Interventions: In high-risk areas of upper gastrointestinal cancer, all subjects in screening group will be screened by endoscopy. In non-high-risk areas, 30% of the subjects in screening group, identified through a survey,will be screened by endoscopy.Primary and secondary outcome measures: The primary outcome is the mortality caused by upper gastrointestinal cancer. The secondary outcomes include detection rate, incidence rate, survival rate, and clinical stage distribution. Additional data on quality of life and cost-effectiveness will also be collected to answer important questions regarding screening effects.Conclusions: Screening strategy evaluated in those areas with positive findings may be promoted nationally and applied to the majority of Chinese people. On the other hand, negative findings will provide scientific evidence for abandoning a test and shifting resources elsewhere.Trial registration: The study has been registered with the Protocol Registration System in Chinese Clinical Trial Registry.wanqing chen hongmei zeng ru chen ruyi xia zhixun yang changfa xia rongshou zheng wenqiang wei guihua zhuang xueqin yu jie he 2017Chinese Journal of Cancer Research2017,29,4:11
155-Aza-2'-deoxycytidine inhibits retinoblastoma cell by reactivating epigenetically silenced RASSF1A gene显示文摘AIM: To investigate the effect of 5-Aza-2'-deoxycytidine(5-Aza-CdR),a DNA methyltransferase(DNMT) inhibitor,on the growth and survival of the Chinese retinoblastoma(RB) cell line HXO-RB44. ·METHODS: The DNA methylation status of the Ras association domain family(RASSF1A) promoter in the presence of 5-Aza-CdR at different concentrations was analyzed by methylation-specific polymerase chain reaction(MSP). RASSF1A mRNA and protein levels were measured by semiquantitative RT-PCR and immunohistochemistry staining,respectively,when cells were treated with 5.0μmol/L of 5-Aza-CdR. The effect of 5.0μmol/L 5-Aza-CdR on the proliferation and viability of HXO-RB44 cells was examined using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT) assay and flow cytometry. ·RESULTS: 5-Aza-CdR efficiently induced cell cycle arrest at G0 /G1 and apoptotic death in HXO-RB44 cells. MSP analysis showed that unmethylated RASSF1A DNA increased and methylated RASSF1A decreased in a dose-dependent manner in a range of 0.5-5.0μmol/L 5-Aza-CdR. Accordingly,RASSF1A expression was reactivated at both mRNA and protein levels. Incubation time of 5-Aza-CdR treatment also functioned as a factor for the demethylation status of RASSF1A promoter DNA,with a plateau on day four. 5-Aza-CdR at 5.0μmol/L completely demethylated the RASSF1A promoter in HXORB44 cells on day four,and as a result,RASSF1A expression increased significantly from day 4 to day 7.·CONCLUSION: 5-Aza-CdR inhibits the growth of the HXO-RB44 RB cell line and induces apoptosis by demethylating the RASSF1A gene.Ru Liu Xiao-Huan Zhang Kun Zhang Wei Li Wen-Jun Wang Di-Xian Luo Ling Gao 2014International Journal of Ophthalmology(English edition)2014,7,1:10
16Effect of heparin on apoptosis in human nasopharyngeal carcinoma CNE2 cells显示文摘In order to study the mechanism of the effect of heparin on apoptosis in carcinoma cells, the nasopharyngeal carcinoma cell line CNE2 was used to identify the effect of heparin on apoptosis associated with the expression of c-myc, bax, bcl-2 proteins by use of Hoechst 33258 staining, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL), agarose gel electrophoresis, and flow cytometry, as well as Western blot analysis. The results showed that heparin induced apoptosis of CNE2 cells including the morphologic changes such as reduction in the volume, and the nuclear chromatin condensation, as well as the “ladder pattern” revealed by agarose gel electrophoresis of DNA in a concentration-dependent manner.The number of TUNEL-positive cells was dramatically increased to 33.6±1.2% from 2.8±0.3% by treat ment with heparin in different concentrations (10~40 kU/L). The apoptotic index was increased to 32.5% from 3.5% by detecting SubG1 peaks on flow cytometry. Western blot analysis showed that levels of bcl-2,bax and c-myc were significantly overexpressed by treatment with the increase of heparin concentrations.These results suggest that heparin induces apoptosis of CNE2 cells, which may be regulated by differential expression of apoptosis-related genes.LI HONG LIANG , KAI HE YE , HAI WEI ZHANG , YING RU LUO , XIAN DA REN, AI HUA XIONG, RUI SITU Department of Pharmacology ,Pharmacy College, Department of Pathology Medical College, Jinan University, Guangzhou 510632, China 2001Cell Research2001,11,4:9
17Endocrine Disruption Activity of 30-day Dietary Exposure to Decabromodiphenyl Ethane in Balb/C Mouse显示文摘Objective This study aimed to evaluate the hepatotoxicity,metabolic disturbance activity and endocrine disrupting activity of mice treated by Decabromodiphenyl ethane(DBDPE).Methods In this study,Balb/C mice were treated orally by gavage with various doses of DBDPE.After 30 days of treatment,mice were sacrificed; blood,livers and thyroid glands were obtained,and hepatic microsomes were isolated.Biochemical parameters including 8 clinical chemistry parameters,blood glucose and hormone levels including insulin and thyroid hormone were assayed.The effects of DBDPE on hepatic cytochrome P450(CYP) levels and activities and uridinediphosphate-glucuronosyltransferase(UDPGT) activities were investigated.Liver and thyroid glands were observed.Results There were no obvious signs of toxicity and no significant treatment effect on body weight,or liver-to-body weight ratios between treatment groups.The levels of ALT and AST of higher dose treatment groups were markedly increased.Blood glucose levels of treatment groups were higher than those of control group.There was also an induction in TSH,T3,and f T3.UDPGT,PROD,and EROD activities were found to have been increased significantly in the high dose group.Histopathologic liver changes were characterized by hepatocyte hypertrophy and cytoplasmic vacuolization.Our findings suggest that DBDPE can cause a certain degree of mouse liver damage and insufficiency.Conclusion DBDPE has the activity of endocrine disruptors in Bal/C mice,which may induce drug-metabolizing enzymes including CYPs and UDPGT,and interfere with thyroid hormone levels mediated by Ah R and CAR signaling pathways.Endocrine disrupting activity of DBDPE could also affect the glucose metabolism homeostasis.SUN Ru Bao SHANG Shuai ZHANG Wei LIN Ben Cheng WANG Qiang SHI Yun XI Zhu Ge 2018Biomedical and Environmental Sciences2018,31,1:7
18DEK43 is a P-type pentatricopeptide repeat(PPR)protein responsible for the Cis-splicing of nad4 in maize mitochondria显示文摘Mitochondria, the main energy transducers in plant cells, require the proper assembly of respiratory chain complexes Ⅰ–Ⅴ for their function. The NADH dehydrogenase4(nad4) gene encodes mitochondrial respiratory chain complex Ⅰ subunit Ⅳ, but the mechanism underlying nad4 transcript splicing is unclear. Here, we report that the P-type pentatricopeptide repeat(PPR) protein DEFECTIVE KERNEL 43(DEK43) is responsible for cis-splicing of the nad4 transcript in maize. We demonstrate that DEK43 localizes to both the nucleus and mitochondria. The mutation of Dek43 resulted in embryo-lethal and light-colored defective kernels. Among the 22 mitochondrial group Ⅱ introns, the splicing efficiency of nad4 introns 1 and 3 was reduced by up to 50% compared to the wild type. The levels of complex Ⅰ and supercomplex Ⅰ+Ⅲ2 were also reduced in dek43. Furthermore, in-gel NADH dehydrogenase assays indicated that the activities of these complexes were significantly reduced in dek43. Further, the mitochondrial ultrastructure was altered in the mutant. Together, our findings indicate that DEK43, a dual-localized PPR protein,plays an important role in maintaining mitochondrial function and maize kernel development.Ru Chang Ren Li Li Wang Lin Zhang Ya Jie Zhao Jia Wen Wu Yi Ming Wei Xian Sheng Zhang Xiang Yu Zhao 2020Journal of Integrative Plant Biology2020,62,3:6
19Structural analysis of asparaginyl endopeptidase reveals the activation mechanism and a reversible intermediate maturation stage显示文摘Asparaginyl endopeptidase (AEP ) 是有为在 P1 地点的天门冬素残余的偏爱的 endo/lysosomal 半胱氨酸 endopeptidase 并且在像使用费的受体 3/7/9 的成熟起一个重要作用。AEP 被知道为催化激活在酸的 pH 经历 autoproteolytic 成熟。这里,我们描述 AEP 酶原的水晶结构和 AEP 的成熟形式。在 AEP 和 caspases 之间的结构的比较在关键残余的作文并且在催化机制揭示了类似。Mutagenesis 研究作为为肽底层的劈开是必要的残余识别了 N44, R46, H150, E189, C191, S217/S218 和 D233。在成熟期间, AEP 的帽子领域的 autoproteolytic 劈开在核心领域上开创存取到活跃地点。出人意料地,一个中间的 autoproteolytic 成熟阶段被发现在近似 pH 4.5 在哪个部分激活的 AEP 能被颠倒回到它的酶原形式。这个唯一的特征被 AEP pH4.5 (AEP 在 pH 被成熟 4.5 并且在 pH 结晶 8.5 ) ,在哪个破肽契约被重新绑扎,结构被转变回到它的酶原形式。另外, AEP 禁止者 cystatin C 能被充分激活的 AEP 消化,但是不能被激活的组织蛋白酶消化。因此,我们第一次证明 cystatins 可以为活跃地点通过底层竞争调整 AEP 的活动。Lixia Zhao Tian Hua Christopher Crowley Heng Ru Xiangmin Ni Neil Shaw Lianying Jiao Wei Ding Lu Qu Li-Wei Hung Wei Huang Lei Liu Keqiang Ye Songying Ouyang Genhong Cheng Zhi-Jie Liu 2014Cell Research2014,24,3:6
20Effects of long-term phosphorus fertilization and straw incorporation on phosphorus fractions in subtropical paddy soil显示文摘Study on soil phosphorus(P) fraction is an important aspect in probing the mechanisms of soil P accumulation in farmland and mitigating its losing risk to the environment. We used a sequential extraction method to evaluate the impacts of long-term fertilization and straw incorporation on inorganic, organic, and residual P(Pi, Po, and Pre) fractions in the plow layer(0–20 cm) of acidic paddy soil in southern China. The experiment comprised of six treatments:(i) no fertilizer control(CK);(ii) straw incorporation and green manure(SG);(iii) nitrogen and P fertilizer(NP);(iv) NP+SG;(v) NP+K fertilizer(NPK); and(vi) NPK+SG. The results showed that, compared to the initial total soil P content(TSP, 600 mg kg–1 in 1990), long-term(20 years) combined continuous P fertilizer and SG significantly increased P accumulation(by 13–20%) while single fertilization(39.3 kg P ha–1 yr–1) could maintain soil P status at the most. The average soil P fractions comprised of extractable Pi, Po, and Pre by 51.7, 33.4, and 14.9% in total soil P, respectively. With comparison of no fertilizer addition(CK), long-term single fertilization significantly(P<0.05) increased the accumulation of Na HCO3–, Na OH–, and HCl– extractable Pi fractions accounting for two- to three-fold, while SG increased the accumulation of Na HCO3– and Na OH– extractable Piand Po accounting for 12–60%. Though the mobilization of Pre fractions was not significant(P>0.05), our data indicate that SG may partially substitute for fertilizer P input and minimizing soil P accumulation and subsequent environmental risk in the subtropical paddy soil.LI Yu-yuan YANG Rui GAO Ru WEI Hong-an CHEN An-lei LI Yong 2015Journal of Integrative Agriculture2015,14,2:6
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