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1The machinery of macroautophagy显示文摘Autophagy 是一首先发生在所有真核细胞的房间的 degradative 小径。它被用于再循环细胞质在压力条件下面产生 macromolecular 积木和精力,到移开过剩、损坏的细胞器适应改变滋养的条件并且维持细胞的动态平衡。另外, autophagy 由在抗原表示包括侵略微生物和它的参予的消除在免疫的各种各样的方面阻止有毒的蛋白质并且通过它的行动的累积在 cytoprotection 起一个关键作用。autophagy 的最流行的形式是 macroautophagy,并且在这期间处理房间形式扣押的双膜分隔空间称为 phagophore,它成熟进 autophagosome。后面的交货到液泡或 lysosome,货物被降级,产生大分子为复用回来被释放进 cytosol。过去的二十年关于在酵母和另外的优核质被执行的 autophagy 的分子的研究导致了巨大的增加。在对这个话题的兴趣的巨浪的部分由于有包括癌症, myopathies,糖尿病和 neurodegenerative 疾病的大量人的 pathophysiologies 的 autophagy 的连接。然而,仍然有 autophagy 的许多方面仍然保持不清楚包括 phagophore 形成的进程,控制它的正式就职和大多数 autophagy 相关的蛋白质的函数的规章的机制。在这评论,我们集中于 macroautophagy,简短在哺乳动物的房间描述这个过程的发现,有关形成 phagophore 的施主膜讨论当前的看法,并且包括可得到的结构的信息描绘 autophagy 机械。Yuchen Feng Ding He Zhiyuan Yao Daniel J Klionsky 2014Cell Research2014,24,1:150
2Primary antibiotic resistance of Helicobacter pylori strains isolated from patients with dyspeptic symptoms in Beijing: A prospective serial study显示文摘AIM:To determine the resistance patterns of Helicobacter pylori(H.pylori) strains isolated from patients in Beijing and monitor the change of antibiotic resistance over time.METHODS:In this prospective,serial and crosssectional study,H.pylori cultures were successfully obtained from 371 and 950 patients(never receiving eradication) during 2009-2010 and 2013-2014,respectively.Resistance to amoxicillin,clarithromycin,metronidazole,levofloxacin,tetracycline,and rifampicin was determined by Epsilometer test.RESULTS:The resistance rates of isolates obtained during 2009-2010 were 66.8%,39.9%,34.5%,15.4%,6.7%,and 4.9% to metronidazole,clarithromycin,levofloxacin,rifampicin,amoxicillin and tetracycline,respectively; and the corresponding rates for isolates during 2013-2014 were 63.4%,52.6%,54.8%,18.2%,4.4% and 7.3%,respectively.The resistance rates to clarithromycin and levofloxacin were significantly increased after four years.In 2009-2010,14.6% of H.pylori isolates were susceptible to all tested antibiotics,with mono(33.7%),double(28.3%),triple(16.7%),quadruple(6.2%),quintuple(0.3%) and sextuple resistance(0.3%) also being detected.In 2013-2014,9.4% were susceptible to all tested antibiotics,and mono(27.6%),double(28.4%),triple(24.9%),quadruple(7.3%),quintuple(2.3%) and sextuple resistance(0.1%) was also observed.More multiple resistant H.pylori isolates were found during 2013-2014.Gender(to levofloxacin and metronidazole),age(to levofloxacin) and endoscopic findings(to clarithromycin) were independent factors influencing antibiotic resistance.CONCLUSION:H.pylori resistance to commonly used antibiotics in Beijing is high with increased multiple antibiotic resistance.Yue-Xi Zhang Li-Ya Zhou Zhi-Qiang Song Jian-Zhong Zhang Li-Hua He Yu Ding 2015World Journal of Gastroenterology2015,21,9:138
3Restoring urbanization process in China in the 1990s by using non-radiance-calibrated DMSP/OLS nighttime light imagery and statistical data显示文摘Since current administrative unit-based urban land area statistical data in China lack enough spatial information, the urbanization process re- search at large scale cannot be effectively supported. Based on the current administrative unit-based urban land area statistical data in China, a new approach to quickly and cheaply derive urban land information from the non-radiance-calibrated Defense Meteoro- logical Satellite Program/ Operational Linescan Sys- tem (DMSP/OLS) nighttime light imagery is pre- sented in this paper. With the new approach, the ur- ban pattern information in China in 1992, 1996 and 1998 was derived with the urbanization processes in China in the 1990s restored by using the non-ra- diance-calibrated DMSP/OLS nighttime imagery. The accuracy assessment based on the statistical data showed that the relative error between the derived total urban land area and the statistical data at na- tional scale was less than 2% in 1992, and less than 1% in 1996 and 1998, and the maximum relative er- ror at province scale do not exceed 10% with most of the provinces less than 3%. In addition, the urban patterns derived from the high-resolution Landsat TM imagery were compared with those from the DMSP/ OLS data. The results showed that the urban pattern characteristics derived from DMSP/OLS were basi-cally coincident with those from TM imagery with the total accuracy of about 80%. Thus it can be seen that our restored urbanization process in China in the 1990s by using the non-radiance DMSP/OLS night- time imagery can be accepted and can represent the actual urban development in China at that time on the whole.HE Chunyang SHI Peijun LI dinggang CHEN din PAN Yaozhong LI ding ZHUO Li Ichinose Toshiaki 2006Chinese Science Bulletin2006,51,13:55
4Validity of Asthma Control Test in Chinese patients显示文摘在中国,背景到目前为止在那里有不是有效或容易的过程定义气喘的控制。这研究估计中国 patients.Methods 的气喘控制测试的有效性三张问询表(气喘控制测试,气喘控制问询表和 30 第二气喘测试) 越过中国从 10 所教学医院予 305 个气喘病人被以。呼吸量测定法也被使用。气喘专家在第一秒根据病人的症状,药和强迫的吐气的体积评估了气喘的控制。病人被划分成 noncontrolled 组并且根据专家的 rating.Reliability,实验有效性和屏蔽精确性控制了组为气喘控制测试分数被进行。屏蔽精确性在 3 张问询表之中被比较。病人的自我等级和专家正在评价也是 5 条款气喘控制测试的内部一致性可靠性是的 compared.Results 0.854。测试和专家正在评估的在气喘控制之间的关联系数是 0.729,它比另外的仪器高。在一些在预言的百分比不同的病人之间区别的气喘控制测试分数在第一秒强迫了吐气的体积(F=26.06, P0.0001 ) ,专家气喘控制的等级(F=88.24, P0.0001 ) 并且气喘控制问询表分数(F=250.57, P0.0001 ) 。气喘控制测试没在正确地分类的百分比与气喘控制问询表显示出重要差别,当百分比正确地分类由时气喘控制测试比 30 第二气喘测试高得多。病人的自我等级与对专家的评价一样(t=0.65, P=0.516 ) 气喘控制测试是的 .Conclusion 为在中国估计气喘控制的一个有效、适用的方法。ZHOU Xin DING Feng-ming LIN Jiang-tao YIN Kai-sheng CHEN Ping HE Quan-ying SHEN Hua-hao WAN Huan-ying LIU Chun-tao LI Jing WANG Chang-zheng 2007Chinese Medical Journal2007,,12:46
5Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China显示文摘To control the spread of the 2019 novel coronavirus(COVID-19),China imposed nationwide restrictions on the movement of its population(lockdown)after the Chinese New Year of 2020,leading to large reductions in economic activities and associated emissions.Despite such large decreases in primary pollution,there were nonetheless several periods of heavy haze pollution in eastern China,raising questions about the well-established relationship between human activities and air quality.Here,using comprehensive measurements and modeling,we show that the haze during the COVID lockdown was driven by enhancements of secondary pollution.In particular,large decreases in NOx emissions from transportation increased ozone and nighttime NO_(3)radical formation,and these increases in atmospheric oxidizing capacity in turn facilitated the formation of secondary particulate matter.Our results,afforded by the tragic natural experiment of the COVID-19 pandemic,indicate that haze mitigation depends upon a coordinated and balanced strategy for controlling multiple pollutants.Xin Huang Aijun Ding Jian Gao Bo Zheng Derong Zhou Ximeng Qi Rong Tang Jiaping Wang Chuanhua Ren Wei Nie Xuguang Chi Zheng Xu Liangduo Chen Yuanyuan Li Fei Che Nini Pang Haikun Wang Dan Tong Wei Qin Wei Cheng Weijing Liu Qingyan Fu Baoxian Liu Fahe Chai Steven JDavis Qiang Zhang Kebin He 2021National Science Review2021,8,2:47
6Sevoflurane postconditioning reduces myocardial reperfusion injury in rat isolated hearts via activation of PI3K/Akt signaling and modulation of Bcl-2 family proteins显示文摘Sevoflurane postconditioning reduces myocardial infarct size.The objective of this study was to examine the role of the phosphatidylinositol-3-kinase(PI3K)/Akt pathway in anesthetic postconditioning and to determine whether PI3K/Akt signaling modulates the expression of pro-and antiapoptotic proteins in sevoflurane postconditioning.Isolated and perfused rat hearts were prepared first,and then randomly assigned to the following groups:Sham-operation(Sham),ischemia/reperfusion(Con),sevoflurane postconditioning(SPC),Sham plus 100 nmol/L wortmannin(Sham+Wort),Con+Wort,SPC+Wort,and Con+dimethylsulphoxide(DMSO).Sevoflurane postconditioning was induced by administration of sevoflurane(2.5%,v/v) for 10 min from the onset of reperfusion.Left ventricular developed pressure(LVDP),left ventricular end-diastolic pressure(LVEDP),maximum increase in rate of LVDP(+dP/dt),maximum decrease in rate of LVDP(?dP/dt),heart rate(HR),and coronary flow(CF) were measured at baseline,R30 min(30 min of reperfusion),R60 min,R90 min,and R120 min.Creatine kinase(CK) and lactate dehydrogenase(LDH) were measured after 5 min and 10 min reperfusion.Infarct size was determined by triphenyltetrazolium chloride staining at the end of reperfusion.Total Akt and phosphorylated Akt(phospho-Akt),Bax,Bcl-2,Bad,and phospho-Bad were determined by Western blot analysis.Analysis of variance(ANOVA) and Student-Newman-Keuls' test were used to investigate the significance of differences between groups.The LVDP,±dP/dt,and CF were higher and LVEDP was lower in the SPC group than in the Con group at all points of reperfusion(P<0.05).The SPC group had significantly reduced CK and LDH release and decreased infarct size compared with the Con group [(22.9±8)% vs.(42.4±9.4)%,respectively;P<0.05].The SPC group also had increased the expression of phospho-Akt,Bcl-2,and phospho-Bad,and decreased the expression of Bax.Wortmannin abolished the cardioprotection of sevoflurane postconditioning.Sevoflurane postconditioning may protect the isolated rat heart.Activation of PI3K and modulation of the expression of pro-and antiapoptotic proteins may play an important role in sevoflurane-induced myocardial protection.Li-na YU Jing YU Feng-jiang ZHANG Mei-juan YANG Ting-ting DING Jun-kuan WANG Wei HE Tao FANG Gang CHEN Min YAN 2010Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010,11,9:36
7Pathological evidence for residual SARS-CoV-2 in pulmonary tissues of a ready-for-discharge patient显示文摘Dear Editor,SARS-CoV-2,a novel coronavirus and causing COVID-19,has given rise to a worldwide pandemic.1,2 So far,tens of thousands of COVID-19 patients have been clinically cured and discharged,but multiple COVID-19 cases showed SARS-CoV-2 positive again in discharged patients,3 which raises an attention for the discharged patients.Also,there is an urgent need to understand the pathogenesis of SARS-CoV-2 infection.Here,we conducted postmortem pathologic study in a ready-fordischarge COVID-19 patient who succumbed to sudden cardiovascular accident.Pathological examination revealed SARSCoV-2-viruses remaining in pneumocytes and virus-caused pathological changes in the lungs.Our study provided new insights into SARS-CoV-2 pathogenesis and might facilitate the improvement of clinical guideline for virus containment and disease management.Xiao-Hong Yao Zhi-Cheng He Ting-Yuan Li Hua-Rong Zhang Yan Wang Huaming Mou Qiaonan Guo Shi-Cang Yu Yanqing Ding Xindong Liu Yi-Fang Ping Xiu-Wu Bian 2020Cell Research2020,30,6:35
8Structural pattern of eastern Himalayan syntaxis in Namjagbarwa and its formation process显示文摘The structural pattern of the eastern Himalayan syntaxis in Namjagbarwa consists of two series of structures with different styles. One series compiles the earlier ductile contractional and lateral-slip deformation system, formed by nearly north-south shortening within the syntaxis, left-lateral and right-lateral slipping along its western and eastern boundaries respectively. They were possibly produced by the indentation of the Indian continent into Asian continent after India-Asia collision. The peak deformation-metamorphic ages in these structures are 62-60 Ma, ~23 Ma and ~13 Ma. The other series is composed of ductile-brittle normal faults distributing concentrically and dipping toward the outsides of Namjagbarwa Peak. They were probably the collapse structures caused by rapid uplift in a later time and the beginning ages for the normal faulting are about 7.3-6.3 Ma.ZHANG Jinjiang, Jl Jianqing, ZHONG Dalai, DING Lin & HE Shundong1. Department of Geology, Peking University, Beijing 100871, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Correspondence should be addressed to Zhang Jinjiang (email: zhjj@pku.edu.cn) 2004Science China Earth Sciences2004,47,2:34
9Toll-like receptor 4/nuclear factor-kappa B signaling detected in brain after early subarachnoid hemorrhage显示文摘背景发炎和免疫在 subarachnoid 出血(SAH ) 以后在早大脑损害的致病起一个重要作用。原子 factor-kappa B (NF-KB ) 为发炎和免疫调整许多基因必需品并且被像使用费的受体(TLR ) 激活。这研究试图检测在早 SAH 以后在老鼠大脑发信号的像使用费的受体 4/nuclear factor-kappa B (TLR4/NF-KB ) 的表示。老鼠被将斩首的方法和他们的大脑在血的单个注射以后在 0, 2, 4, 6, 12, 24 和 48 个小时被移开进 prechiasmatic 水塘, TLR4 的 mRNA 表示被 immunohistochemistry 并且西方的弄污被 Taqman 即时 RT-PCR,和蛋白质表示测量。肿瘤坏死 factor-alpha (TNF-) 的 NF-KB 活动和集中, interleukin-lbeta (IL-) 和 intedeukin-6 (IL-6 ) 被试金(ELISA ).Results TaqMan 即时 RT-PCR 并且西方的弄污识别了的连接酶的 immunosorbent 测量在在 mRNA 和蛋白质的 TLR4 表示的一个 biphasic 变化:一座起始的山峰(2-6 小时) 和持续举起(12-48 小时) 。染色的 Immunohistochemical 在 glial 房间和脉管的内皮细胞层主要显示出 TLR4-1ike 免疫反应的可诱导的表示。在象 NF-KB-regulated proinflammatory cytokines (TNF- , IL-1 和 IL-6 ) 的生产一样的 NF-KB 子单元 p65 的激活的一个类似的 biphasic 变化被 ELISA 检测。结论这些数据建议试验性的 SAH 导致在早大脑损害发信号的 TLR4 表示和 NF-KB 的重要起来规定。发信号的 TLR4/NF-KB 的激活可以在 SAH 以后调整煽动性的回答。MA Chun-xiao YIN Wei-ning CAI Bo-wen WU Jian WANG Jun-yi HE Min SUN Hong DING Jun-li YOU Chao 2009Chinese Medical Journal2009,,13:33
10Cardioprotective effects of simvastatin on reversing electrical remodeling induced by myocardial ischemia-reperfusion in normocholesterolemic rabbits显示文摘背景:最近的研究表明了有 statin 的那个预告的处理在阻止心律不齐,而是它的电镀物品是有效的生理的机制不清楚。这研究被进行在颠倒在经历 ischemia-reperfusion 的兔子心的左室的 myocytes 的电的改变上调查 simvastatin 的 cardioprotective 效果,以便探索为 statin 的反没有节奏的效果负责的离子的机制。方法:45 只兔子随机被划分成三个组:ischemic-reperfusion 组(红外) , simvastatin 干预组(Statin ) 和假冒操作控制组(反对) 。Anesthetized 兔子被左前面的下降冠的动脉和 60 分钟的灌注的结扎在 5 mg x kg 的口头的 simvastatin 的一个 3 天的政府以后受到 30 分钟的局部缺血(-1) x d (在 Statin 组的 -1) 或在红外的安慰剂组织。单个室的 myocytes 被孤立从 infracted 区域的 epicardial 地区的酶的联盟者在 CON 动物在红外和 Statin 组和一样的解剖区域源于心。整个房间斑夹钳技术被用来记录膜离子电流,包括钠电流(我(Na )) , L 类型钙电流(我(Ca-L )) 并且短暂的外面的钾电流(我(到)) 。同时,浆液胆固醇的水平被检验。结果:在在三个组之中的浆液胆固醇集中没有有效差量。山峰我( Na )当前的密度(在 -30 mV )显著地在红外被减少((-22.46+/-5.32) pA/pF , n=12 )与反对相比((-42.78+/-5.48) pA/pF , n=16 , P<0.01 )并且 Statin ((-40.66+/-5.89) pA/pF , n=15 , P<0.01 ),当时山峰我( Na )在 Statin 组的当前的密度不与反对( P>0.05 )不同。山峰我( Ca-L )当前的密度(在 0 mV )显著地在红外被增加((-4.34+/-0.92) pA/pF , n=15 )与反对相比((-3.13+/-1.22) pA/pF , n=13 , P<0.05 )并且 Statin ((-3.46+/-0.85) pA/pF , n=16 , P<0.05 ),当时山峰我( Ca-L )在 Statin 的当前的密度不与反对( P>0.05 )不同。我(到)当前的密度(在 +60 mV )显著地在红外被减少(( 9.49+/-1.91 ) pA/pF , n=11 )与反对相比(( 17.41+/-3.13 ) pA/pF , n=15 , P<0.01 )并且 Statin (( 14.54+/-2.41 ) pA/pF , n=11 , P<0.01 ),尽管与反对( P<0.05 )相比在 Statin 组有细微减小。结论:ischemia-reperfusion 导致重要下面规定,这被暗示我(Na ) 并且我(到) 并且起来规定我(Ca-L ) ,它可以位于改变的电的活动和幸存的长反常的 transmembrane 动作电位持续时间下面室的 myocytes,因此在尖锐 ischemia-reperfusion 期间贡献室的心律不齐时期。有 simvastatin 的预告的处理能稀释这些变化并且颠倒没有降低浆液胆固醇水平的这电的改变,贡献在在胆固醇的减少的心律不齐独立人士的处理的 statin 的离子的机制。DING Chao FU Xiang-hua HE Zhen-shan CHEN Hui-xiao XUE Ling LI Jun-xia 2008Chinese Medical Journal2008,,6:26
11Aerosol scattering coefficients and major chemical compositions of fine particles observed at a rural site in the central Pearl River Delta,South China显示文摘During November-December 2010 aerosol scattering coefficients were monitored using a single-waved (525 nm) Nephelometer at a regional monitoring station in the central Pearl River Delta region and 24-hr fine particle (PM 2.5) samples were also collected during the period using quartz filters for the analysis of major chemical components including organic carbon (OC),elemental carbon (EC),sulfate,nitrate and ammonium.In average,these five components accounted for about 85% of PM 2.5 mass and contributed 42% (OC),19% (SO 4 2 -),12% (NO 3 -),8.4% (NH 4+) and 3.7% (EC),to PM 2.5 mass.A relatively higher mass scattering efficiency of 5.3 m 2/g was obtained for fine particles based on the linear regression between scattering coefficients and PM 2.5 mass concentrations.Chemical extinction budget based on IMPROVE approach revealed that ammonium sulfate,particulate organic matter,ammonium nitrate and EC in average contributed about 32%,28%,20% and 6% to the light extinction coefficients,respectively.Xinming Wang Xiang Ding Xiaoxin Fu Quanfu He Shaoyi Wang Francois Bernard Xiuying Zhao Dui Wu 2012Journal of Environmental Sciences2012,24,1:25
12体内腺相关病毒-常间回文重复序列丛集及其相关蛋白9介导的基因编辑可改善家族性高胆固醇血症的动脉粥样硬化显示文摘低密度脂蛋白受体(low-density lipoprotein receptor,Ldlr)基因突变是家族性高胆固醇血症的主要原因之一,可导致动脉粥样硬化,并具有很高的终生心血管病风险。常间回文重复序列丛集(clustered regularly interspaced short palindromic repeats,CRISPR)/CRISPR相关蛋白9(CRISPR-related protein 9,Cas9)系统是基因编辑纠正基因突变从而改善疾病的有效工具。该研究的目的是通过腺相关病毒(adeno-associated virus,AAV)携带的CRISPR/Cas9系统进行体内体细胞基因编辑,以确定其能否在小鼠模型中治疗由Ldlr突变体引起的家族性高胆固醇血症。刘青(译) 叶鹏(审校) Zhao H Li Y He L Pu W Yu W Li Y Wu YT Xu C Wei Y Ding Q Song BL Huang H Zhou B 2020中华高血压杂志2020,28,3:22
13Efficacy and Safety of Niaoduqing Particles for Delaying Moderate-to-severe Renal Dysfunction: A Randomized, Double-blind, Placebo-controlled, Multicenter Clinical Study显示文摘Ying Zheng Guang-Yan Cai Li-Qun He Hong-Li Lin Xiao-Hong Cheng Nian-Song Wang Gui-Hua Jian Xu-Sheng Liu Yu-Ning Liu Zhao-Hui Ni Jing-Ai Fang Han-Lu Ding Wang Guo Ya-Ni He Li-Hua Wang Ya-Ping Wang Hong-Tao Yang Zhi-Ming Ye Ren-Huan YU Li-Juan Zhao Wen-Hua Zhou Wen-Ge Li Hui-Juan Mao Yong-Li Zhan Zhao Hu Chen Yao Ri-Bao Wei Xiang-Mei Chen 2017Chinese Medical Journal2017,,20:21
14Portosplenomesenteric vein thrombosis in patients with early-stage severe acute pancreatitis显示文摘AIM To investigate the incidence and risk factors of portosplenomesenteric vein thrombosis(PSMVT) in the early stage of severe acute pancreatitis(SAP).METHODS Patients with SAP in a tertiary care setting from January 2014 to December 2016 were retrospectively reviewed. All contrast-enhanced computed tomography(CT) studies were reassessed and reviewed. Clinical outcome measures were compared between SAP patients with and without PSMVT in the early stage of the disease. Univariate and multivariate logistic regression analyses were sequentially performed to assess potential risk factors for the development of PSMVT in SAP patients. A receiver operating characteristic(ROC) curve was generated for the qualifying independent risk factors.RESULTS Twenty-five of the one hundred and forty(17.86%) SAP patients developed PSMVT 6.19 ± 2.43 d after acute pancreatitis(AP) onset. PSMVT was confirmed by contrast-enhanced CT. Multivariate stepwise logistic regression analyses showed that Balthazar's CT severity index(CTSI) scores [odds ratio(OR): 2.742; 95% confidence interval(CI): 1.664-4.519; P = 0.000], hypoalbuminemia(serum albumin level < 25 g/L)(OR: 32.573; 95%CI: 2.711-391.353; P = 0.006) and gastrointestinal wall thickening(OR: 4.367, 95%CI: 1.218-15.658; P = 0.024) were independent risk factors for PSMVT developed in patients with SAP. The area under the ROC curve for Balthazar's CTSI scores was 0.777(P = 0.000), the sensitivity was 52%, and the specificity was 93% at a cut-off value of 5.5.CONCLUSION High Balthazar's CTSI scores, hypoalbuminemia and gastrointestinal wall thickening are independent risk factors for PSMVT developed in the early stage of SAP.Ling Ding Feng Deng Chen Yu Wen-Hua He Liang Xia Mi Zhou Xin Huang Yu-Peng Lei Xiao-Jiang Zhou Yin Zhu Nong-Hua Lu 2018World Journal of Gastroenterology2018,24,35:20
15Effect of porosities of bilayered porous scaffolds on spontaneous osteochondral repair in cartilage tissue engineering显示文摘Poly(lactide-co-glycolide)-bilayered scaffolds with the same porosity or different ones on the two layers were fabricated,and the porosity effect on in vivo repairing of the osteochondral defect was examined in a comparative way for the first time.The constructs of scaffolds and bone marrow-derived mesenchymal stem cells were implanted into pre-created osteochondral defects in the femoral condyle of New Zealand white rabbits.After 12 weeks,all experimental groups exhibited good cartilage repairing according to macroscopic appearance,cross-section view,haematoxylin and eosin staining,toluidine blue staining,immunohistochemical staining and real-time polymerase chain reaction of characteristic genes.The group of 92%porosity in the cartilage layer and 77%porosity in the bone layer resulted in the best efficacy,which was understood by more biomechanical mimicking of the natural cartilage and subchondral bone.This study illustrates unambiguously that cartilage tissue engineering allows for a wide range of scaffold porosity,yet some porosity group is optimal.It is also revealed that the biomechanical matching with the natural composite tissue should be taken into consideration in the design of practical biomaterials,which is especially important for porosities of a multi-compartment scaffold concerning connected tissues.Zhen Pan Pingguo Duan Xiangnan Liu Huiren Wang Lu Cao Yao He Jian Dong Jiandong Ding 2015Regenerative Biomaterials2015,2,1:20
16Severity of acute gastrointestinal injury grade is a good predictor of mortality in critically ill patients with acute pancreatitis显示文摘BACKGROUND Gastrointestinal(GI)dysfunction is a common and important complication of acute pancreatitis(AP),especially in patients with severe AP.Despite this,there is no consensus means of obtaining a precise assessment of GI function.AIM To determine the association between acute gastrointestinal injury(AGI)grade and clinical outcomes in critically ill patients with AP.METHODS Patients with AP admitted to our pancreatic intensive care unit from May 2017 to May 2019 were enrolled.GI function was assessed according to the AGI grade proposed by the European Society of Intensive Care Medicine in 2012,which is mainly based on GI symptoms,intra-abdominal pressure,and feeding intolerance in the first week of admission to the intensive care unit.Multivariate logistic regression analysis was performed to assess the association between AGI grade and clinical outcomes in critically ill patients with AP.RESULTS Among the 286 patients included,the distribution of patients with various AGI grades was 34.62%with grade I,22.03%with grade II,32.52%with grade III,and 10.84%with grade IV.The distribution of mortality was 0%among those with grade I,6.35%among those with grade II,30.11%among those with grade III,and 61.29%among those with grade IV,and AGI grade was positively correlated with mortality(χ2=31.511,P<0.0001).Multivariate logistic regression analysis showed that age,serum calcium level,AGI grade,persistent renal failure,and persistent circulatory failure were independently associated with mortality.Compared with the Acute Physiology and Chronic Health Evaluation II score(area under the curve:0.739 vs 0.854;P<0.05)and Ranson score(area under the curve:0.72 vs 0.854;P<0.01),the AGI grade was more useful for predicting mortality.CONCLUSION AGI grade is useful for identifying the severity of GI dysfunction and can be used as a predictor of mortality in critically ill patients with AP.Ling Ding Hong-Yan Chen Jin-Yun Wang Hui-Fang Xiong Wen-Hua He Liang Xia Nong-Hua Lu Yin Zhu 2020World Journal of Gastroenterology2020,26,5:20
17Comparison of four prognostic models and a new Logistic regression model to predict short-term prognosis of acute-on-chronic hepatitis B liver failure显示文摘HE Wei-ping HU Jin-hua ZHAO Jun TONG Jing-jing DING Jin-biao LIN Fang WANG Hui-fen 2012Chinese Medical Journal2012,,13:19
18Soil pH impact on microbial tetraether lipids and terrestrial input index (BIT) in China显示文摘The distributions of microbial tetraether lipids i.e. glycerol dialkyl glycerol tetraethers (GDGTs) were investigated in a variety of Chinese soils featured by a wide range of pH values in different climate zones. The bacterial branched GDGTs and archaeal isoprenoid GDGTs were found to be widely distributed in Chinese soils and their relative abundance was controlled primarily by soil pH. The bacterial bGDGTs usually dominate over archaeal iGDGTs in abundance when the soil pH is below 8.0. However archaeal iGDGTs become dominant and the abundance of halophilic archaea characterized by GDGT V without cyclopentyl ring increases dramatically in the alkaline soil with pH greater than 8.0. The relative abundance of archaeal iGDGTs to bacterial bGDGTs was defined here as RAI index. The RAI index decreases with elevated soil pH and a linear correlation is found between them indicating that the relative abundance of archaeal iGDGTs to bacterial bGDGTs increases with increased pH. The RAI index thus could be a novel proxy of the pH values of paleosol. The terrestrial input index BIT (Branched and Isoprenoid Tetraethers Index) decreases with increased soil pH suggesting that soil pH should be taken into consideration when the terrestrial contribution to marine sediments is estimated by BIT index. Moreover the TEX86 index cannot be used to reconstruct sea surface temperature in the sediments featured by a large terrestrial input.YANG Huan DING WeiHua WANG JinXiang JIN ChengSheng HE GangQiang QIN YangMin XIE ShuCheng 2012Science China Earth Sciences2012,55,2:19
19Gefitinib inhibits M2-1ike polarization of tumor- associated macrophages in Lewis lung cancer by targeting the STAT6 signaling pathway显示文摘Muhammad TARIQ Jie-qiong ZHANG Gui-kai LIANG Qiao-jun HE Ling DING Bo YANG 2017Acta Pharmacologica Sinica2017,38,11:18
20Exploring an Integrative Therapy for Treating COVID-19:A Randomized Controlled Trial显示文摘Objectives:To develop a new Chinese medicine(CM)-based drug and to evaluate its safety and effect for suppressing acute respiratory distress syndrome(ARDS)in COVID-19 patients.Methods:A putative ARDS-suppressing drug Keguan-1 was first developed and then evaluated by a randomized,controlled two-arm trial.The two arms of the trial consist of a control therapy(alpha interferon inhalation,50(x g twice daily;and lopinavir/ritonavir,400 and 100 mg twice daily,respectively)and a testing therapy(control therapy plus Keguan-119.4 g twice daily)by random number table at 1:1 ratio with 24 cases each group.After 2-week treatment,adverse events,time to fever resolution,ARDS development,and lung injury on newly diagnosed COVID-19 patients were assessed.Results:An analysis of the data from the first 30 participants showed that the control arm and the testing arm did not exhibit any significant differences in terms of adverse events.Based on this result,the study was expanded to include a total of 48 participants(24 cases each arm).The results show that compared with the control arm,the testing arm exhibited a significant improvement in time to fever resolution(P=0.035),and a significant reduction in the development of ARDS(P=0.048).Conclusions:Keguan-1-based integrative therapy was safe and superior to the standard therapy in suppressing the development of ARDS in COVID-19 patients.(Trial registration No.NCT 04251871 at www.clinicaltrials.gov).WANG Jia-bo WANG Zhong-xia JING Jing ZHAO Peng DONG Jing-hui ZHOU Yong-feng YANG Guang NIU Ming ZHAO Xu JIANG Tian-jun Bl Jing-feng XU Zhe ZHANG Ping WU Dan BAI Zhao-fang GUO Yu-ming YU Si-miao SUN Yong-qiang ZHANG Zi-teng ZHAN Xiao-yan LI Peng-yan DING Jin-biao ZHAO Peng-fei SONG Xue-ai TANG Jian-yuan HE Dong-chu CHEN Zhu QIN En-qiang WANG Rui-lin XIAO Xiao-he 2020Chinese Journal of Integrative Medicine2020,26,9:18
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