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1185篇 您的检索式:作者名="Yun Yu"
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1The Tea Tree Genome Provides Insights into Tea Flavor and Independent Evolution of Caffeine Biosynthesis显示文摘茶是世界有巨大的经济、药用、文化的重要性的最旧、很流行的包含咖啡因的饮料。这里,我们在场第一个高质量的核苷酸序列充满重复(80.9%) ,栽培的茶树山茶 sinensis 的 3.02-Gb 染色体。我们证明茶树的一种非常地大的染色体尺寸从一些 LTR retrotransposon 家庭的慢、稳定、长期的扩大被结果。除了一个最近的整个染色体的复制事件,基因的系特定的扩大把新陈代谢的生合成与 flavonoid 联系了被发现,它提高 catechin 生产,萜烯酶激活,和应力公差,为茶风味和改编的重要特征。我们相对可可子和咖啡表明一个独立人士和茶咖啡因合成小径的快速的进化。在 25 山茶种类之中的比较研究表明那更高的表情大多数 flavonoid- 和咖啡因铺平 -- 然而并非 theanine 相关的基因贡献 catechins 和咖啡因的增加的生产并且因此提高处理茶的适用性和茶质量。这些新奇调查结果为进一步的 metabolomic 和典型生合成小径的功能的 genomic 精炼铺平道路并且将帮助开发将最后满足并且吸引世界范围的更多的茶喝酒者的茶风味的一个更多样化的集合。En-Hua Xia Hai-Bin Zhang Jun Sheng Kui Li Qun-Jie Zhang Changhoon Kim Yun Zhang Yuan Liu Ting Zhu Wei Li Hui Huang Yan Tong Hong Nan Cong Shi Chao Shi Jian-Jun Jiang Shu-Yan Mao Jun-Ying Jiao Dan Zhang Yuan Zhao You-Jie Zhao Li-Ping Zhang Yun-Long Liu Ben-Ying Liu Yue Yu Sheng-Fu Shao De-Jiang Ni Evan E. Eichler Li-Zhi Gao 2017Molecular Plant2017,10,6:113
2Hydrogen Sulfide Promotes Root Organogenesis in Ipomoea batatas, Salix matsudana and Glycine max显示文摘In this report, we demonstrate that sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, promoted adventitious root formation mediated by auxin and nitric oxide (NO). Application of the H2S donor to seedling cuttings of sweet potato (Ipomoea batatas L.) promoted the number and length of adventitious roots in a dose-dependent manner. It was also verified that H2S or HS- rather than other sulfur-containing components derived from NaHS could be attributed to the stimulation of adventitious root formation. A rapid increase in endogenous H2S, indole acetic acid (IAA) and NO were sequentially observed in shoot tips of sweet potato seedlings treated with HaHS. Further investigation showed that H2S-mediated root formation was alleviated by N-1-naphthylphthalamic acid (NPA), an IAA transport inhibitor, and 2-(4-carboxyphenyl)- 4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO), an NO scavenger. Similar phenomena in H2S donor-dependent root organogenesis were observed in both excised willow (Salix matsudana var. tortuosa Vilm) shoots and soybean (Glycine max L.) seedlings. These results indicated that the process of H2S-induced adventitious root formation was likely mediated by IAA and NO, and that H2S acts upstream of IAA and NO signal transduction pathways.Hua Zhang Jun Tang Xiao-Ping Liu Yun Wang Wei Yu Wei-Yan Peng Fang Fang Dai-Fu Ma Zhao-Jun Wei Lan-Ying Hu 2009Journal of Integrative Plant Biology2009,51,12:58
3Berberine protects rat heart from ischemia/ reperfusion injury via activating JAK2/STAT3 signaling and attenuating endoplasmic reticulum stress显示文摘目的: Berberine (BBR ) ,从根茎 coptidis 孤立的导出 isoquinoline 的碱,施加 cardioprotective 效果。因为 endoplasmic 蜂窝胃(嗯)应力在导致的心肌的 ischemia/reperfusion ( MI/R )起一个枢轴的作用 apoptosis ,检验 BBR 的保护的效果是否源于 modulating 有趣嗯在 MI/R 损害期间强调层次,并且在这 process.Methods 定义发信号的机制:雄的老鼠与 BBR 被对待( 200 mg· ; kg −1·d−1, ig )为 2 个星期,然后使外科遭到了到 MI/R 。心脏的尺寸和功能用 echocardiography 被估计。心肌的梗塞尺寸和 apoptosis 被检验。在心织物的全部的浆液 LDH 层次和 CK 活动, superoxide 生产, MDA 层次和抗氧化剂草皮活动是坚定的。一在里面 vitro 学习在胚胎的导出心肌层的房间 H9C2 暴露了到模仿的 ischemia/reperfusion (先生) 的有教养的老鼠上被执行。apoptotic 的表达式,嗯压力相关、发信号的蛋白质用西方的污点 analyses.Results 被估计: 有 BBR 的预告的处理显著地减少了 MI/R-induced 心肌的梗塞尺寸,改进心脏的函数,和压制的心肌的 apoptosis 和氧化损坏。而且,有 BBR 的预告的处理压制了 MI/R-induced 嗯应力,证实了由下面调整心肌的津贴和 eIF2α 的 phosphorylation 层次;并且在心纸巾的 ATF4 和砍的表示。有 BBR 的预告的处理也激活与 AG490 在心纸巾,和合作处理表明小径的 JAK2/STAT3,一个特定的 JAK2/STAT3 禁止者,在 MI/R-induced 上堵住了 BBR 的 BBR,而且抑制的不仅保护的效果嗯应力。在 H9C2 房间,有 BBR 的处理(50 μ mol/L ) 显著地减少的导致先生的房间 apoptosis,氧化应力并且嗯应力,被 transfection 与 JAK2 siRNA.Conclusion 废除, BBR 改善在由激活表明小径和 attenuating 的 AK2/STAT3 的老鼠的 MI/R 损害嗯导致压力的 apoptosis。Guo-long ZHAO Li-ming YU Wen-li GAO Wei-xun DUAN Bo JIANG Xu-dong LIU Bin ZHANG Zhen-hua LIU Meng-en ZHAI Zhen-xiao JIN Shi-qiang YU Yun WANG 2016Acta Pharmacologica Sinica2016,37,3:47
4Inhibition of CXCR4 activity with AMD3100 decreases invasion of human colorectal cancer cells in vitro显示文摘AIM: To investigate the effect and mechanism of blockade of the CXC chemokine receptor-4 (CXCR4) signaling pathway by AMD3100, a small non-peptide CXCR4 inhibitor, on invasion and metastasis of colorectal cancer cells in vitro. METHODS: Human colorectal cancer cell line SW480 was treated with AMD3100 at different final concentrations. 3-(4,5-dimethylthiazole-2-yl)-2.5-dipheny-ltetrazolium bromide (MTT) assay was used to detect the effect of AMD3100 on cell proliferation. The invasion ability of SW480 cells was determined by cell invasion assay kit. In the presence of AMD3100, the CXCL12-mediated migratory response of SW480 cells was tested by classical chemotaxis assays. RT-PCR analysis and Western blotting were used to detect the expression of vascular endothelial growth factor (VEGF), matrix metalloproteinase-2 (MMP-2) and -9 (MMP-9) in SW480 cells. RESULTS: Cell viability was significantly suppressed by AMD3100 in a dose-dependent manner. AMD3100 (100 and 1000 ng/mL) significantly inhibited the invasion ability of SW480 cells. Treatment with AMD3100 markedly reduced the expression of VEGF and MMP-9 but not MMP-2 in SW480 cells. CONCLUSION: The CXCL12/CXCR4 system is an important mediator of proliferation and invasion of CXCR4-expressing colorectal cancer cells. AMD3100 inhibited invasion and metastasis activity of the colorectalcancer cell line SW480 through down-regulation of VEGF and MMP-9 expression.Ji-Kun Li Liang Yu Yun Shen Li-Sheng Zhou Yi-Cheng Wang Jian-Hai Zhang 2008World Journal of Gastroenterology2008,14,15:34
5Production of high-quality agarwood in Aquilaria sinensis trees via whole-tree agarwood-induction technology显示文摘我们使用了整个树的 agarwood 感应的技术在 20 个月以内从 Aquilaria sinensis 树生产 agarwood,并且评估了这 agarwood 的质量。结果证明它的特征以质地,化学成分,香精油内容,和乙醇可溶的摘录内容类似于高级野 agarwood 的那些,与远超过繁体中文药 agarwood 的要求的最後的质量,作为在中国药典 2010 显示了。就我们的知识而言,这是第一研究证明高质量的 agarwood 能在整个 A 被生产。经由一种化学上导致的技术的 sinensis 树。Xing Li Zhang Yang Yang Liu Jian He Wei Yun Yang Zheng Zhang Jun Qing Huang Huai Qiong Chen Yu Jun Liu 2012Chinese Chemical Letters2012,23,6:28
6Percutaneous Sacroiliac Screw Placement: A Prospective Randomized Comparison of Robot?assisted Navigation Procedures with a Conventional Technique显示文摘Jun-Qiang Wang Yu Wang Yun Feng Wei Han Yong-Gang Su Wen-Yong Liu Wei-Jun Zhang Xin-Bao Wu Man-Yi Wang Yu-Bo Fan 2017Chinese Medical Journal2017,,21:28
7Effects and mechanism of glucagon-like peptide-1 on injury of rats cardiomyocytes induced by hypoxia-reoxygenation显示文摘背景尽管在类型 2 糖尿病 mellitus 的象glucagon一样 peptide-1 ( GLP-1 )的 insulinotropic 角色被证实了,它在大部分, unknown.This 学习试图在心脏的 myocytes 由 hypoxia-reoxygenation ( H/R )和可能的 mechanisms.Methods 导致了的老鼠的损害上决定 GLP-1 的效果的 cardioprotection 遗体的角色有教养的新生的老鼠心脏的 myocytes 随机被划分成七个 groups:the 正常控制组, H/R 组, GLP-1+H/R 组, GLP-1+H/R+UO126 (XIE Yun WANG Shao-xin SHA Wei-wei ZHOU Xue WANG Wei-tin HAN Li-pin LI Dai-qing YU De-min 2008Chinese Medical Journal2008,,21:24
8Effect of ultrasound-guided acupotomy vs electro-acupuncture on knee osteoarthritis:a randomized controlled study显示文摘OBJECTIVE:To investigate the effect of acupotomy on knee osteoarthritis(KOA),compared to electro-acupuncture(EA).METHODS:Sixty KOA patients were randomly divided into 2 groups:ultrasound-guided acupotomy group and EA group;each had 3 weeks' therapy.After the treatment,by contrast before and after therapy,by comparing curative effects among groups,we looked into disease improvement degree through activities of daily living score(ADL),hospital for special surgery index(HSS),visual analogue scales score(VAS) and knee joint's infrared thermal imaging detection.RESULTS:Graded by ADL,the excellent rate in acupotomy group was much higher than EA group;both acupotomy group and EA group had obviouschanges in HSS index before and after the therapy(P < 0.01).And there was remarkable difference in HSS index variation between the groups(P < 0.01).Acupotomy group and EA group showed big difference in pain index before and after treatment(P <0.01).Apparent difference also existed in the comparison among groups(P < 0.01).Both acupotomy group and EA group had apparent changes in infrared thermal imaging detection before and after the treatment(P < 0.01).CONCLUSION:Acupotomy and EA both have significant effects in KOA treatment;the former is better than the latter in relieving pain and improving knee functions.Ding Yu Wang Yuexiang Shi Xian Luo Yun Gao Yuhong Pan Jingkun 2016Journal of Traditional Chinese Medicine2016,36,4:21
9Overexpression of p27^(KIP1)induced cell cycle arrest in G_1 phase and subsequent apoptosis in HCC-9204 cell line显示文摘AIM We have previously reported that inducibleover-expression of Bak may prolong cell cycle inG1 phase and lead to apoptosis in HCC-9204 cells.This study is to investigate whether p27KIP1playsan important role in this process.METHODS In order to elucidate the exactfunction of p27KIP1in this process,a zinc induciblep27KIP1stable transfectant and transient p27KIP1-GFP fusion transfectant were constructed.Theeffects of inducible,p27KIP1on cell growth,cellcycle arrest and apoptosis were examined in themock,control pMD vector,and pMD-KIP1transfected HCC-9204 cells.RESULTS This p27KIP1-GFP transfectant maytransiently express the fusion gene.The cellgrowth was reduced by 35% at 48 h of p27KIP1induction with zinc treatment as determined bytrypan blue exclusion assay.These differencesremained the same after 72 h of p27KIP1expression,p27KIP1caused cell cycle arrest after24 h of induction,with 40% increase in G1population.Prolonged p27KIP1expression in thiscell line induced apoptotic cell death reflected byTUNEL assay.Fourty-eight h and 72 h of p27KIP1expression showed a characteristic DNA ladder onagarose gel electrophoresis. CONCLUSION Bak may induce cell cycle arrest inG1 phase through upregulating expression ofp27KIP1and subsequently lead to apoptosis inHCC-9204 cells.The p27KIP1-GFP fusion proteincan be transiently expressed in HCC-9204 cells.The inducible p27KIP1-expressing cell line providesa model to assess p27KIP1function.Jiang Li Xin Ke Yang Xin Xin Yu Meng Liang Ge Wen Liang Wang Jie Zhang Yun De Hou Department of Pathology,Fourth Military Medical University,Xi’an 710033,Shaanxi Province,China State Key Laboratory for Molecular Virology and Genetic Engineering,Beijing 100052,China Department of Dermatology,Beijing Hospital,Beijing 100016,China Institute of Radiation Medicine,Beijing 100085,China 2000World Journal of Gastroenterology2000,6,4:20
10Changes in Waist Circumference and Abdominal Obesity among Chinese Adults over a Ten-year Period显示文摘Objective The aim of this study was to describe changes in waist circumference(WC) and prevalence of abdominal obesity over a period of 10 years among Chinese adults in different socio-economic status(SES). Methods Data derived from the China Nutrition and Health Surveillance during 2002 and 2010-2012. We calculated the mean WC and the prevalence of abdominal obesity by gender, place of residence, SES indicators(education, income, and marital status), and body mass index(BMI) categoriesand used pooled t-tests to assess the differences between the two time periods. Results 26.0% of men and 25.3% of women had abdominal obesity in 2010-2012. The age-adjusted mean WC increased by 2.7 cm among men and 2.1 cm among women; the age-adjusted prevalence of abdominal obesity increased by 7.7% among men and 5.3% among women. The rising trends were observed in all subgroups except for a negative growth in high-income women. People living in rural areas with low education and income and with a BMI of 18.5 to 23.9 kg/m^2 had a greater absolute and relative increase in WC. People living in rural areas with low income had a greater relative increase in abdominal obesity. Conclusion The mean WC and prevalence of abdominal obesity among Chinese adults have increased during the past 10 years. Gender differences were noted using various SES indicators.ZHAI Yi FANG Hong Yun YU Wen Tao YU Dong Mei ZHAO Li Yun LIANG Xiao Feng ZHAO Wen Hua 2017Biomedical and Environmental Sciences2017,30,5:19
11N6-Methyladenine DNA Methylation in Japonica and Indica Rice Genomes and Its Association with Gene Expression,Plant Development, and Stress Responses显示文摘N6-Methyladenine (6mA)DNA methylation has recently been implicated as a potential new epigenetic marker in eukaryotes,including the dioot modelArabidopsis thaliana.However,the conservation and divergence of 6mA distribution patterns and functions in plants remain elusive.Here we report high-quality 6mA methylomes at single-nucleotide resolution in rice based on substantially improved genome sequences of two rice cultivars,Nipponbare (Nip;Japonica)and 93-11 (Indica).Analysis of 6mA genomic distribution and its association with transcription suggest that 6mA distribution and function is rather conserved between rice and Arabidopsis.We found that 6mA levels are positively correlated with the expression of key stressrelated genes,which may be responsible for the difference in stress tolerance between Nip and 93-11. Moreover,we showed that mutations in DDM1 cause defects in plant growth and decreased 6mA level. Our results reveal that 6mA is a conserved DNA modification that is positively associated with gene expression and contributes to key agronomic traits in plants.Qian Zhang Zhe Liang Xuean Cui Changmian Ji Yun Li Pingxian Zhang Jingrong Liu Adeel Riaz Pu Yao Min Liu Yunpeng Wang Tiegang Lu Hao Yu Donglei Yang Hongkun Zheng Xiaofeng Gu 2018Molecular Plant2018,11,12:18
12Comparison of Undernutrition Prevalence of Children under 5 Years in China between 2002 and 2013显示文摘Objective To describe the undernutrition status of children under 5-year in China, and study the trend between 2002 and 2013. Methods The study was based on two national surveys. Undernutrition was determined against WHO's 2006 growth standards. The prevalence in 2013 and 2002 was weighted by China sixth National Population Census(2010). The relationship between undernutrition and gender/age groups/different areas use weighted logistic regression. Results The results indicated the overall prevalence of stunting, underweight, and wasting of Chinese children under 5-year was 8.1%, 2.4%, and 1.9% in 2013, respectively. The prevalence of stunting was higher for children aged 12-47 month, while underweight was higher for children aged 48-59 month. The prevalence of undernutrition was higher in rural areas than in urban areas, especially in poor rural areas. There was a decline of stunting, underweight, and wasting between 2002 and 2013 among the children, with greater reduction in rural areas than in urban areas. Conclusion The prevalence of undernutrition of children under 5-year remains high in rural areas especially in poor rural areas in China. It is urgent to take action to control undernutrition in the vulnerable areas and subgroups.YU Dong Mei ZHAO Li Yun YANG Zhen Yu CHANG Su Ying YU Wen Tao FANG Hong Yun WANG Xun YU Dan GUO Qi Ya XU Xiao Li FANG Yue Hui ZHAO Wen Hua YANG Xiao Guang DING Gang Qiang LIANG Xiao Feng 2016Biomedical and Environmental Sciences2016,29,3:18
13Effect of endogenous insulin-like growth factor and stem cell factor on diabetic colonic dysmotility显示文摘AIM: To investigate whether the reduction of stem cell factor (SCF) is mediated by decreased endogenous insulin-like growth factor (IGF)-1 in diabetic rat colon smooth muscle. METHODS: Sixteen Sprague-Dawley rats were randomly divided into two groups: control group and streptozotocin-induced diabetic group. After 8 wk of streptozotocin administration, colonic motility function and contractility of circular muscle strips were measured. The expression of endogenous IGF-1 and SCF was tested in colonic tissues. Colonic smooth muscle cells were cultured from normal adult rats. IGF-1 siRNA transfection was used to investigate whether SCF expression was affected by endogenous IGF-1 expression in smooth muscle cells, and IGF-1 induced SCF expression effects were studied. The effect of high glucose on the expression of endogenous IGF-1 and SCF was also investigated. RESULTS: Diabetic rats showed prolonged colonic transit time (252 ± 16 min vs 168 ± 9 min, P < 0.01) and weakness of circular muscle contraction (0.81 ± 0.09 g vs 2.48 ± 0.23 g, P < 0.01) compared with the control group. Endogenous IGF-1 and SCF protein expression was significantly reduced in the diabetic colonic muscle tissues. IGF-1 and SCF mRNA expression also showed a paralleled reduction in diabetic rats. In the IGF-1 siRNA transfected smooth muscle cells, SCF mRNA and protein expression was significantly decreased. IGF-1 could induce SCF expression in a concentration and time-dependent manner, mainly through the extracellular-signal-regulated kinase 1/2 signal pathway. High glucose inhibited endogenous IGF-1 and SCF expression and the addition of IGF-1 to the medium reversed the SCF expression. CONCLUSION: Myopathy may resolve in colonic motility dysfunction in diabetic rats. Deficiency of endogenous IGF-1 in colonic smooth muscle cells leads to reduction of SCF expression.Yun Wang Xin-Yu Xu Yu-Rong Tang Wei-Wei Yang Yu-Feng Yuan Yue-Ji Ning Yin-Juan Yu Lin Lin 2013World Journal of Gastroenterology2013,19,21:18
14Clinical and laboratory survey of 65 Chinese patients with Leigh syndrome显示文摘Background Leigh syndrome is an inherited neurodegenerative disease that emerges in infancy and childhood and presents with a clinically heterogeneous variety of neuromuscular and non-neuromuscular disorders. It can result from the inheritance of mutations in either nuclear or mitochondrial DNA. In the current study, we performed a retrospective study in 65 patients in order to investigate the clinical and genetic characteristics of Leigh syndrome in Chinese patients. Methods Sixty-five unrelated cases (35 men and 30 women) who were hospitalized in the past 12 years were reviewed. Diagnosis was based on both the clinical presentation and the characteristic neuropathologic findings of bilateral symmetric necrotizing lesions in the basal ganglia and brain stem as detected using cranial computed tomography (CT) scan or magnetic resonance imaging (MRI). The differential diagnosis of organic acidurias and fatty acid ?-oxidation defects were performed. Specific point mutations and deletions in mitochondrial DNA (T8993G, T8993C, T9176C, A8344G, A3243G) were screened by PCR-restriction analysis and Southern blot. The SURF1 gene was sequenced. Skeletal muscle biopsies were performed in 17 (26.2%) of the patients. The diagnosis was confirmed by autopsy in 6 (9.2%) patients. Results The patients had various forms of metabolic encephalomyopathy. Fifty-nine (90.8%) of the patients had the typical neuroradiological features of Leigh syndrome, including symmetrical necrotizing lesions scattered within the basal ganglia, thalamus and brain stem. Twenty (30.8%) patients were confirmed by genetic, biochemical analysis and autopsy. Specific point mutations in mitochondrial DNA were found in 5 cases (7.7%). Of these, the A8344G mutation was detected in 2 patients. The T8993G, T8993C, and A3243G point mutations were identified in 3 other patients, respectively. SURF1 mutations associated with cytochrome c oxidase deficiency were identified in 8 (12.3%) families by DNA sequencing. A G604C mutation was identified in 6 (9.2%) patients. The genotypes of 52 patients remained unknown. Conclusions Leigh syndrome presents as a diverse array of clinical features and can result from specific mutations in nuclear or mitochondrial DNA. In this study, SURF1 mutations associated with cytochrome c oxidase deficiency were identified in 8 (12.3%) out of 65 patients with Leigh syndrome. It indicates that SURF1 mutations might be a common cause of Leigh syndrome in China. The etiology of Leigh syndrome in Chinese patients represents a persistent challenge to clinicians.YANG Yan-ling SUN Fang ZHANG Yao QIAN Ning YUAN Yun WANG Zhao-xia QI Yu XIAO Jiang-xi WANG Xiao-ying QI Zhao-yue ZHANG Yue-hua JIANG Yu-wu BAO Xin-hua QIN Jiong WU Xi-ru 2006Chinese Medical Journal2006,,5:17
15Correlation of Epstein-Barr virus and its encoded proteins with Helicobacter pylori and expression of c-met and c-myc in gastric carcinoma显示文摘瞄准:为了调查 Epstein-Barr 病毒(EBV ) 和 EBV- 的相互关系,并且在胃的致癌作用探索他们的角色,与 Helicobacter pylori (H pylori ) 编码了蛋白质感染和表示遇见 c 并且在胃的癌的 c-myc oncogene 蛋白质。方法:185 胃的癌纸巾被聚合酶链反应(PCR ) 检测为 EBV 染色体的南部的污点和为编码 EBV 的小 RNA 1 (EBER1 ) 的原位杂交(ISH ) 。有积极 EBER1 信号的胃的癌被证实联系 EBV 的胃的癌(EBVaGC ) 。在 185 胃的癌的 H pylori 感染的地位被快速的 urease 和 PCR 估计。有积极 PCR 和 urease 的样品被定义为 H pylori 感染。表示遇见 c 并且在 EBVaGC 和匹配的 EBV 否定的胃的癌(EBVnGC ) 的纸巾的 c-myc oncogene 蛋白质被免疫组织化学检验。RT-PCR 和南部的杂交被用来检测原子抗原(EBNA ) 的表示 1 和 2,潜伏的膜蛋白质(LMP ) 1,在 EBVaGC 情况中的早基因 BARF1 和 BHRF1。结果:在 185 胃的癌的 H pylori 和 EBV 的积极的率是 59.45%(110/185 ) 并且 7.03%(13/185 ) 分别地。没有差别在在 pylori 积极的 H 和 H 之间的性别,年龄,病理学的区别,临床的阶段和淋巴节点转移被发现 pylori 否定的胃的癌。然而,在窦的 H pylori 感染的积极的率胃的癌比贲门和身体的高胃的癌。在我们的系列,年龄,病理学的区别,临床的阶段,淋巴节点转移和癌症的地点不在 EBVnGC 和 EBVaGC 之间是不同的,当在男病人的 EBV 的积极的率比女病人的显著地高时。在联系 EBV 、 EBV 否定的胃的癌的 H pylori 的确实是 46.15%(6/13 ) 并且 81.40%(104/172 ) 分别地。在 EBV 和 H pylori 感染之间没有重要关联。在表示上遇见 c 比在 EBVnGC 组在 EBVaGC 组是显著地更高的。然而,遇见 c 并且 c-myc 表示没显示出在二个组之间的有效差量。EBNA1 的抄本在所有 13 EBVaGCs 被检测,当 EBNA2 和 LMP1 mRNA 没被检测时。13 个盒子中的六个展出了 BARF1 抄本和 2 个展出 BHRF1 抄本。结论:在 EBVnGCs 的 H pylori 的确实比 EBVaGCs 的高,但是没有重要关联在 EBV 感染和 H pylori 感染之间被发现。H pylori 积极的胃的癌在窦地点是占优势的,当 EBVaGC 在贲门 / 身体地点有优势的一个趋势时。EBV 感染在 EBVaGC 与遇见 c 的反常表示然而并非与 c-myc 蛋白质被联系。在表示上遇见 c 没被 LMP1 导致。BARF1 和 BHRF1 可以通过不同小径在 EBVaGC 的肿瘤发生起重要作用。Bing Luo Yun Wang Xiao-Feng Wang Yu Gao Bao-Hua Huang Peng Zhao 2006World Journal of Gastroenterology2006,12,12:16
16Properties and Applications of the Eccentric-gear Drive显示文摘The eccentric-gear can be used for variable speed transmission.But,due to the vibrations caused by variation of backlash in working process,the eccentric-gear is seldom applied in engineering project.There is just a little study about the eccentric-gear.And it is necessary to take a further research on eccentric-gear transmission for the applications in the transplanting mechanism of high-speed rice transplanter.The key of this paper is to extend understanding of three following characteristics of this drive:(1) The rotation-center-distance and the geometrical-center-distance of the two meshing eccentric gears are respectively the hypotenuse and the straight edge of a right triangle in a cycle.(2) The geometrical center line of two meshing gears divides the linking-line of the two rotational centers equally.(3) When two times the eccentricity of gear,the rotation-center-distance and the geometrical-center-distance form a right triangle,the optimal value of rotation-center-distance can be determined.In addition,the kinematic analysis,such as the relationship between contact point and midpoint of the linking-line of two gears' rotational centers,transmission ratio between the driving-gear and the driven-gear,contact angle and coordinate of contact point are be made,further the formula for calculation of contact force,flow chart for writing optimization program and curve for analysis of data are also be developed.The relationship between the rotation-center-distance and the geometrical-center-distance,which is determined by three characteristics mentioned above, is a key for the rational design and application of eccentric-gear transmission.Particularly,the presented right triangle property of eccentric gear drive is an important reference for effective analysis of dynamic characteristic of eccentric-gear mechanism and its reliable design.ZHAO Yun SUN Liang YU Gaohong 2011Chinese Journal of Mechanical Engineering2011,24,2:16
17The Prevalence of Nonalcoholic Fatty Liver Disease and its Association with Lifestyle/dietary Habits among University Faculty and Staff in Chengdu显示文摘Objective To investigate the prevalence of nonalcoholic fatty liver disease(NAFLD) in different university categories and its association with lifestyle/dietary habits.Methods A cross-sectional study was carried out on 9 378 faculty members and staff who participated in an annual health checkup at three universities selected by random cluster sampling.Demographic,anthropometric,biochemical indices and abdominal ultrasound measurements were collected.A nested case-control study was conducted with 200 NAFLD cases and 200 controls matched by gender,age(±3 years),and university.Results The overall prevalence of NAFLD was 10.3%(13.7% in males and 6.8% in females).The prevalence was significantly higher in the science and engineering university(22.1%) than in the comprehensive universities with(6.4%) and without(10.9%) medical colleges.Obesity/overweight,hyperlipidemia,diabetes mellitus,and family history of NAFLD were independently associated with higher risk of NAFLD,as were frequent consumption of desserts and salty/spicy foods.Using nutritional supplements was a protective factor against NAFLD.Intake of coarse cereals,potatoes,vegetables,fruits,and milk was significantly lower,and intake of red meat,viscera,candies and pastries,cooking oil,and total energy was significantly higher in participants with NAFLD than in controls.Conclusion Science and engineering university faculty and staff are key targets for NAFLD prevention.NAFLD is closely associated with age,gender,university type,metabolic diseases,and lifestyle/dietary habits.SHI Lei LIU Zhong Wu LI Yun GONG Cai ZHANG Huan SONG Li Juan HUANG Cheng Yu LI Ming 2012Biomedical and Environmental Sciences2012,25,4:16
18A Cross-sectional Survey Assessing Carriage of Streptococcus pneumoniae in a Healthy Population in Xinjiang Uygur Autonomous Region of China显示文摘链球菌 pneumoniae 的车厢率和 serotype 分发(S。pneumoniae ) 在在中国遗体的一张健康人口不清楚。在这研究,我们在 Xinjiang 从 513 个个人收集了 oropharyngeal 拖把,中国。指向 lytA 基因和 12 serotypes 的实时 PCR 被估计识别 S。pneumoniae 马车。S 的全部的车厢率。pneumoniae 是 70.4%(361/513 ) 。最流行的 serotypes 是 19B/F, 18B/C, 5,并且 6A/B。S 的最高的车厢率。pneumoniae 6-10 年(88.6%) 在孩子被注意,它应得进一步的注意。二的合作殖民率或更多的 S。pneumoniae serotypes 是 79.8%(264/331 ) 。这研究试图在中国在健康个人之中调查基线 pneumococcal 马车率改进我们 S 的传染病学的理解。pneumoniae。XIE Na CHEN Zhao Yun CHEN Tao ZHU Bing Qing XU Li GAO Yuan ZHANG Ai Yu ZHAO Pan LIU Ji Wen SHAO Zhu Jun 2018Biomedical and Environmental Sciences2018,31,3:15
19Resveratrol, an activator of SIRT1, restores erectile function in streptozotocin-induced diabetic rats显示文摘在糖尿病的可勃起的机能障碍(编辑) 的高发生为有效处理策略加亮需要。Resveratrol,沉默信息管理者 2-related 酶的使活跃之物 1 (sirtuin1, SIRT1 ) ,在癌症, neurodegenerative 疾病,长寿和心血管的疾病为它的珍贵效果收到了注意。在导致糖尿病的编辑探索 resveratrol 的效果, resveratrol 与 streptozocin 予老鼠被以(65   mg kg −1)-induced 糖尿病。可勃起的功能,多孔的结构,沉默信息管理者 2-related 酶的织物蛋白质表示 1 (sirtuin1, SIRT1 ) , p53 和 O 3a (FOXO3a )(MDA ) , superoxide dismutase (草皮) 活动和 malondialdehyde 在阴茎海绵体铺平的 forkhead 抄写因素被学习。我们发现 SIRT1 在 cavernosal 组织被表示,并且它是在糖尿病的老鼠的宫体的 downregulated。resveratrol upregulated 的管理 SIRT1 和恢复可勃起的功能的表示。相反, resveratrol downregulated p53 和 FOXO3a 的表示,调整 apoptosis 和氧化应力。而且,对待 resveratrol 的组在光滑的肌肉内容,草皮活动和 MDA 层次看了改进什么时候与糖尿病患者相比组织。因此, resveratrol 的能力改进导致糖尿病的编辑与它 SIRT1 表示的激活有关是可能的,因此向氧化应力引起 apoptosis 和抵抗的抑制。Wen Yu Zan Wan Xue-Feng Qiu Yun Chen Yu-Tian Dai 2013Asian Journal of Andrology2013,15,5:15
20The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis显示文摘The rubber tree,Hevea brasiliensis,produces natural rubber that serves as an essential industrial raw material.Here,we present a high-quality reference genome for a rubber tree cultivar GT1 using single-molecule real-time sequencing(SMRT)and Hi-C technologies to anchor the~1.47-Gb genome assembly into 18 pseudochromosomes.The chromosome-based genome analysis enabled us to establish a model of spurge chromosome evolution,since the common paleopolyploid event occurred before the split of Hevea and Manihot.We show recent and rapid bursts of the three Hevea-specific LTR-retrotransposon families during the last 10 million years,leading to the massive expansion by~65.88%(~970 Mbp)of the whole rubber tree genome since the divergence from Manihot.We identify large-scale expansion of genes associated with whole rubber biosynthesis processes,such as basal metabolic processes,ethylene biosynthesis,and the activation of polysaccharide and glycoprotein lectin,which are important properties for latex production.A map of genomic variation between the cultivated and wild rubber trees was obtained,which contains~15.7 million high-quality single-nucleotide polymorphisms.We identified hundreds of candidate domestication genes with drastically lowered genomic diversity in the cultivated but not wild rubber trees despite a relatively short domestication history of rubber tree,some of which are involved in rubber biosynthesis.This genome assembly represents key resources for future rubber tree research and breeding,providing novel targets for improving plant biotic and abiotic tolerance and rubber production.Jin Liu Cong Shi Cheng-Cheng Shi Wei Li Qun-Jie Zhang Yun Zhang Kui Li Hui-Fang Lu Chao Shi Si-Tao Zhu Zai-Yun Xiao Hong Nan Yao Yue Xun-Ge Zhu Yu Wu Xiao-Ning Hong Guang-Yi Fan Yan Tong Dan Zhang Chang-Li Mao Yun-Long Liu Shi-Jie Hao Wei-Qing Liu Mei-Qi Lv Hai-Bin Zhang Yuan Liu Ge-Ran Hu-tang Jin-Peng Wang Jia-Hao Wang Ying-Huai Sun Shu-Bang Ni Wen-Bin Chen Xing-Cai Zhang Yuan-Nian Jiao Evan E.Eichler Guo-Hua Li Xin Liu Li-Zhi Gao 2020Molecular Plant2020,13,2:15
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