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| 1 | A mathematical model for simulating the phase-based transmissibility of a novel coronavirus显示文摘Background:As reported by the World Health Organization,a novel coronavirus(2019-nCoV)was identified as the causative virus of Wuhan pneumonia of unknown etiology by Chinese authorities on 7 January,2020.The virus was named as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)by International Committee on Taxonomy of Viruses on 11 February,2020.This study aimed to develop a mathematical model for calculating the transmissibility of the virus.Methods:In this study,we developed a Bats-Hosts-Reservoir-People transmission network model for simulating the potential transmission from the infection source(probably be bats)to the human infection.Since the Bats-HostsReservoir network was hard to explore clearly and public concerns were focusing on the transmission from Huanan Seafood Wholesale Market(reservoir)to people,we simplified the model as Reservoir-People(RP)transmission network model.The next generation matrix approach was adopted to calculate the basic reproduction number(R0)from the RP model to assess the transmissibility of the SARS-CoV-2.Results:The value of R0 was estimated of 2.30 from reservoir to person and 3.58 from person to person which means that the expected number of secondary infections that result from introducing a single infected individual into an otherwise susceptible population was 3.58.Conclusions:Our model showed that the transmissibility of SARS-CoV-2 was higher than the Middle East respiratory syndrome in the Middle East countries,similar to severe acute respiratory syndrome,but lower than MERS in the Republic of Korea. | Tian-Mu Chen Jia Rui Qiu-Peng Wang Ze-Yu Zhao Jing-An Cui Ling Yin | 2020 | Infectious Diseases of Poverty2020，9，1： | 22 |
| 2 | Sutureless Intestinal Anastomosis with a Novel Device of Magnetic Compression Anastomosis显示文摘Objective To explore the feasibility and efficiency of a novel magnetic compression anastomats(MCAs) in intestinal anastomosis.Methods A total of 36 male mongrel canines underwent intestinal anastomosis using traditional hand-sewn(n=18) or a novel MCAs(n=18).We compared the anastomosis time,postoperative complications,bursting strength of anastomoses,gross appearance,and pathology between two groups at each time-point of follow-up.Results The mean anastomosis time with MCAs was significantly less than that with hand-sewn(8.50±1.95 vs.31.1±4.32 minutes,P<0.001).The blood stools and intussusceptions occurred in both groups during follow-up period.Only 1 mongrel canine receiving intestinal anastomosis by MCAs experienced anastomotic leakage.The average bursting pressure of anastomoses obtained from mongrel canines undergoing intestinal anastomosis by MCAs was significantly higher than that by traditional hand-sewn at 1 week's follow-up time(P<0.05).Gross appearance of the anastomoses constructed by MCAs was relatively smoother and flatter.Pathological evalution of anastomoses revealed that general inflammation was greater in hand-sewn anastomoses than magnetic anastomosis.Conclusion The magnetic compression anastomat is a safe and effective device of sutureless intestinal anastomosis in canine models. | Chao Fan Jia Ma Hong-ke Zhang Rui Gao Jian-hui Li Liang Yu Zheng Wu Yi Lv | 2011 | Chinese Medical Sciences Journal2011，26，3： | 20 |
| 3 | Aneuploidy in Early Miscarriage and its Related Factors显示文摘 | Chan-Wei Jia Li Wang Yong-Lian Lan Rui Song Li-Yin Zhou Lan Yu Yang Yang Yu Liang Ying Li Yan-Min Ma Shu-Yu Wang | 2015 | Chinese Medical Journal2015，，20： | 20 |
| 4 | Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases显示文摘 | Rui Chen Lei Wang Xia Sheng Shu-Guang Piao Xin-Wen Nian Xin Cheng Tie Zhou Hui-Zhen Li Ya-Wei Liu Guang-Hua Chen Chun-Lei Zhang De-Pei Kong Guang-An Xiao Xin Lu Zhen-Yu Jia Zhi-Yong Liu Ying-Hao Sun | 2018 | Asian Journal of Andrology2018，20，5： | 18 |
| 5 | Diurnal variation of number concentration and size distribution of ultrafine particles in the urban atmosphere of Beijing in winter显示文摘在尺寸的在空中的粒子的数字集中和分发变化 5.6 ~ 560 nm 直径在冬季 2005 为一个 15-d 时期在北京被测量。成核模式(5.6 20 nm ) 的每天平均的数字集中,艾特肯模式(20 100 nm ) ,和累积模式(100 560 nm ) 粒子,和全部的粒子是 17500, 32000, 4000,和 53500 厘米(? 3 ) 分别地。平均颗粒大小分发是单音的与在夜里和与大约 10 和大约 40 nm 的模式直径形式的双性人的大约 40 nm 的一条模式直径形式在白天期间。新粒子形成事件,它被连接到日报成核模式粒子的变化,被观察在多于观察天的一半。事件经常在 10:00 11:00 汉语标准时间(CST ) 附近开始了并且在 3 4 h 以后结束了。艾特肯和累积模式粒子的集中从午夜增加了并且在大约 10:00 CST 到达了他们的最大值,然后减少并且在下午变得最低。分析日报在交通体积和气象学的参数的周期表明在艾特肯的粒子和在早上的累积模式的累积被在车辆排放的倒置和增加的形成影响,并且在下午的如此的粒子的分散与更有效的垂直混合和更高的风速度被联系。 | SHI Zong-bo HE Ke-bin YU Xue-chun YAO Zhi-liang YANG Fu-mo MA Yong-liang MA Rui JIA Ying-tao ZHANG Jie | 2007 | Journal of Environmental Sciences2007，19，8： | 16 |
| 6 | Therapeutic approaches to non-alcoholic fatty liver disease: past achievements and future challenges显示文摘BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a leading cause of chronic liver injury and mortality in Western countries and China. However, as to date, there is no direct and effective therapy for this disease. The aim of this review is to analyze the key progress and challenges of main current therapeutic approaches in NAFLD. DATA SOURCE: We carried out a PubMed search of English-language articles relevant to NAFLD therapy. RESULTS: There are two major therapeutic strategies for NAFLD treatment: (1) lifestyle interventions (including weight reduction, dietary modification and physical exercise) and (2) pharmaceutical therapies. Lifestyle interventions, particularly chronic and moderate intensity exercise, are the most effective and recognized clinical therapies for NAFLD. For pharmaceutical therapies, although their effects and mechanisms have been extensively investigated in laboratory studies, they still need further tests and investigations in clinical human trials. CONCLUSION: Future advancement of NAFLD therapy should focus on the mechanistic studies on cell based and animal models and human clinical trials of exercise, as well as the combination of lifestyle intervention and pharmaceutical therapy specifically targeting main signaling pathways related to lipid metabolism, oxidative stress and inflammation. | Jia Xiao Rui Guo Man Lung Fung Emily C Liong George L Tipoe | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，2： | 14 |
| 7 | Effects of the novel 6 % hydroxyethyl starch 130/0.4 on renal function of recipients in living-related kidney transplantation显示文摘背景为使用的最佳的胶体不在肾移植期间是清楚的。经历生活相关的肾移植(LRKT ) 的病人被用来比较 6% hydroxyethyl 淀粉 130/0.4 (HES 130/0.4 ) 和 4% succinylated 胶的保护的效果,作为施主肾获得,局部缺血时间和外科的条件是可比较的。击卷变化(SVV ) 被用来监视 intravascular 体积避免肾的 allograft hypoperfusion.Methods 经历 LRKT 的八十个病人被划分成二个组:组 H 收到了 6% HES 130/0.4,组 G 收到了 4% succinylated 胶。所有施主和接受者在外科期间收到了相关胶体的 15-25 ml/kg。动脉的血压(ABP ) ,心率(HR ) ,中央静脉的压力(CVP ) , SVV 和心脏的索引(CI ) , electrocardiography (ECG ) 和 SpO2 连续地被监视。SVV 在 100-130 mmHg 在 6%-13% 和吝啬的动脉的压力之间被保留。静脉的血和尿的样品被获得 30 在 unclamping 以后并且在手术后的天(邮政部门) 的早上纪录 1-4 测量浆液和尿 2-microglobulin,尿 1-microglobulin, microalbumin 和 N 乙酰 -- D-glucosaminidase。血脲氮(甜面包) 和肌酸是坚定的操作前(到) ,在外科(t1 ) 以后并且在豆荚上的 3 个小时 1 (t2 ) , 2 (t3 ) , 4 (t4 ) , 7 (t5 ) 并且 10 (t6 ) 。尿输出在 t1, t2, t5, t6.Results 年龄,身体重量,身体表面区域(BSA ) ,操作时间,尿输出和灌输的胶体卷被记录在这些组之间是可比较的, hemodynamics 在外科期间是稳定的。在在相对 baseline.BUN 的两个组的外科在 t1, t2 和 t4 与组 G 相比在组 H 显著地减少了以后,甜面包,浆液肌酸,浆液 2-microglobulin 和尿 2-microglobulin 显著地减少了。尿 microalbumin 在与组 G 相比的邮政部门 4 上在组 H 显著地减少了。尿 1-microglobulin 不两个都在二 groups.Conclusion 之间是显著地不同的胶体能安全地为 LRKT 被使用,但是 HES130/0.4 与肾的功能的更快速的恢复被联系。 | WU Yan WU An-shi WANG Jun TIAN Ming JIA Xin-yuan RUI Yan YUE Yun | 2010 | Chinese Medical Journal2010，，21： | 14 |
| 8 | Effect of endotoxin on fibronectin synthesis of rat primary cultured hepatocytes显示文摘EfectofendotoxinonfibronectinsynthesisofratprimaryculturedhepatocytesJIAJinBin,HANDeWu,XURuiLing,GAOFei,ZHAOLongFeng,ZHA... | JIA JinBin, HAN DeWu, XU RuiLing, GAO Fei, ZHAO LongFeng, ZHAO YuanChang, YAN JinPin and MA XueHuiKeywords liver cirrhosis endotoxins fibronectin/analysis liver/cytology cells, cultured lipopolysaccharide | 1998 | World Journal of Gastroenterology1998，4，4： | 14 |
| 9 | Comparison of dust emissions, transport, and deposition between the Taklimakan Desert and Gobi Desert from 2007 to 2011显示文摘The Taklimakan Desert(TD) and Gobi Desert(GD) are two of the most important dust sources in East Asia, and have important impact on energy budgets, ecosystems and water cycles at regional and even global scales. To investigate the contribution of the TD and the GD to dust concentrations in East Asia as a whole, dust emissions, transport, and deposition over the TD and the GD in different seasons from 2007 to 2011 were systematically compared, based on the Weather Research and Forecasting model coupled with Chemistry(WRF-Chem). Dust emissions, uplift, and long-range transport related to these two dust source regions were markedly different due to differences in topography, elevation, thermal conditions, and atmospheric circulation. Specifically,the topography of the GD is relatively flat, and at a high elevation, and the area is under the influence of two jet streams at high altitudes, resulting in high wind speeds in the upper atmosphere. Deep convective mixing enables the descending branch of jet streams to continuously transport momentum downward to the mid-troposphere, leading to enhanced wind speeds in the lower troposphere over the GD which favors the vertical uplift of the GD dust particles. Therefore, the GD dust was very likely to be transported under the effect of strong westerly jets, and thus played the most important role in contributing to dust concentrations in East Asia. Approximately 35% and 31% of dust emitted from the GD transported to remote areas in East Asia in spring and summer, respectively. The TD has the highest dust emission capabilities in East Asia, with emissions of about 70.54 Tg yr.1 in spring, accounting for 42% of the total dust emissions in East Asia. However, the TD is located in the Tarim Basin and surrounded by mountains on three sides. Furthermore, the dominant surface wind direction is eastward and the average wind speed at high altitudes is relatively small over the TD. As a result, the TD dust particles are not easily transported outside the Tarim Basin, such that most of the dust particles are re-deposited after uplift, at a total deposition rate of about 40 g m.2. It is only when the TD dust particles are uplifted above 4 km, and entrained in westerlies that they begin to undergo a long-range transport. Therefore,the contribution of the TD dust to East Asian dust concentrations was relatively small. Only 25% and 23% of the TD dust was transported to remote areas over East Asia in spring and summer, respectively. | CHEN SiYu HUANG JianPing LI JingXin JIA Rui JIANG NanXuan KANG LiTai MA XiaoJun XIE TingTing | 2017 | Science China Earth Sciences2017，60，7： | 14 |
| 10 | Laser performance upgrade for precise ICF experiment in SG-Ⅲ laser facility显示文摘The SG-Ⅲlaser facility(SG-Ⅲ)is the largest laser driver for inertial confinement fusion(ICF)researches in China,which has 48 beamlines and can deliver 180 kJ ultraviolet laser energy in 3 ns.In order to meet the requirements of precise physics experiments,some new functionalities need to be added to SG-Ⅲand some intrinsic laser performances need upgrade.So at the end of SG-Ⅲ's engineering construction,the 2-year laser performance upgrade project started.This paper will introduce the newly added functionalities and the latest laser performance of SG-Ⅲ.With these function extensions and performance upgrade,SG-Ⅲis now fully prepared for precise ICF experiments and solidly paves the way towards fusion ignition. | Wanguo Zheng Xiaofeng Wei Qihua Zhu Feng Jing Dongxia Hu Xiaodong Yuan Wanjun Dai Wei Zhou Fang Wang Dangpeng Xu Xudong Xie Bin Feng Zhitao Peng Liangfu Guo Yuanbin Chen Xiongjun Zhang Lanqin Liu Donghui Lin Zhao Dang Yong Xiang Rui Zhang Fang Wang Huaiting Jia Xuewei Deng | 2017 | Matter and Radiation at Extremes2017，2，5： | 13 |
| 11 | A novel colloidal gold immunochromatography assay strip for the diagnosis of schistosomiasis japonica in domestic animals显示文摘Background:Schistosomiasis remains a major public health concern in China and an epidemiological survey has revealed that schistosome-infected bovines and goats are the main transmission sources for the disease.Therefore,development of a sensitive technique for the diagnosis of schistosomiasis in domestic animals is necessary.Method:A novel colloidal gold immunochromatography assay(GICA)strip was developed for detecting Schistosoma japonicum in domestic animals.The colloidal gold was conjugated with recombinant streptococcal protein G(rSPG).As the test and control lines,the schistosome soluble egg antigen and rSPG,respectively,were blotted on nitrocellulose membrane.Results:The lowest detectable serum dilution was 1∶640 for schistosome-infected buffaloes.The cross-reaction rate of GICA was 14.29%with Paramphistomum sp.in buffaloes,16.67%with Haemonchus sp.in goats,and 33.33%with Orientobilharzia sp.in goats.These results were slightly lower and similar to those obtained through ELISA.Moreover,the strips for detecting S.japonicum in mice,rabbits,buffaloes,and goats showed high sensitivity(100.00%,100.00%,100.00%,and 100.00%,respectively)and specificity(100.00%,100.00%,94.23%,and 88.64%,respectively).And the sensitivity or specificity of the GICA strips did not present any significant differences after storage for 12 months at room temperature.When compared with ELISA,the GICA strips exhibited similar sensitivity and specificity in the diagnosis of schistosomiasis in mice,rabbits,buffaloes,and goats.Besides,only 5μl of serum are required for the test and the detection can be completed within 5 min.Conclusion:This study is the first to develop a GICA strip using gold-rSPG conjugate for the diagnosing of schistosomiasis in domestic animals,and preliminary results showed that the developed strip may be suitable for large-scale screening of schistosomiasis in endemic areas. | Rui Xu Jintao Feng Yang Hong Chao Lv Dengyun Zhao Jiaojiao Lin Ke Lu Hao Li Jinming Liu Xiaodan Cao Tao Wang Jinli Zai Zhaozhe Wang Bingguang Jia Qian Han Chuangang Zhu | 2017 | Infectious Diseases of Poverty2017，6，1： | 12 |
| 12 | Plumbagin inhibits cell growth and potentiates apop-tosis in human gastric cancer cells -in vitro through the NF-KB signaling pathway显示文摘 | Jing LI Lin SHEN Fu-rong LU You QIN Rui CHEN Jia LI fan LI Han-zi ZHAN Yuan-qiao HE | 2012 | Acta Pharmacologica Sinica2012，33，2： | 11 |
| 13 | Combining Endometrium Sampling Device and SurePath Preparation to Screen for Endometrial Carcinoma: A Validation Study显示文摘 | Jia Wen Rui Chen Jian Zhao Yin Dong Xi Yang Qin-Ping Liao | 2015 | Chinese Medical Journal2015，，5： | 11 |
| 14 | Angiographic characteristics and in-hospital mortality among patients with ST-segment elevation myocardial infarction presenting without typical chest pain: an analysis of China Acute Myocardial Infarction registry显示文摘Background:Patients with ST-segment elevation myocardial infarction(STEMI)who present without typical chest pain are associated with a poor outcome.However,whether angiographic characteristics are related to a higher risk of mortality in this population is unclear.This study aimed to investigate whether the higher mortality risk in patients with STEMI without chest pain could be explained by their'high-risk'angiographic characteristics.Methods:We used data of 12,145 patients with STEMI who was registered in China Acute Myocardial Infarction registry from January 2013 to September 2014.We compared the infarct-related artery(IRA),thrombolysis in myocardial infarction(TIMI)flow grade in the IRA,and other angiographic characteristics between patients without and those with chest pain.Multivariable logistic regression model was used to identify independent risk factor of in-hospital mortality.Results:The 2922(24.1%)patients with STEMI presented without typical chest pain.These patients had a higher TIMI flow grade(mean TIMI flow grade:1.00 vs.0.94,P=0.02)and a lower rate of IRA disease of the left anterior descending artery(44.6%vs.51.2%,χ^2=35.63,P<0.01)than did those with typical chest pain.Patients without chest pain were older,more likely to have diabetes,longer time to hospital and higher Killip classification,and less likely to receive optimal medication treatment and primary percutaneous coronary intervention and higher In-hospital mortality(3.3%vs.2.2%,χ^2=10.57,P<0.01).After adjusting for multi-variables,presentation without chest pain was still an independent predictor of in-hospital death among patients with STEMI(adjusted odds ratio:1.36,95%confidence interval:1.02–1.83).Conclusions:Presentation without chest pain is common and associated with a higher in-hospital mortality risk in patients with acute myocardial infarction.Our results indicate that their poor prognosis is associated with baseline patient characteristics and delayed treatment,but not angiographic lesion characteristics.Clinical trial registration:NCT01874691,http://gffzzd3f38a9638994581s9kck5x9fn0oq69vn.ffgz.tsg.suse.edu.cn. | Chen-Xi Song Rui Fu Jin-Gang Yang Hai-Yan Xu Xiao-Jin Gao Chun-Yue Wang Yang Zheng Shao-Bin Jia Ke-Fei Dou Yue-Jin Yang on behalf of the CAMI Registry study group | 2019 | Chinese Medical Journal2019，，19： | 11 |
| 15 | A New Arg54Gly Transthyretin Gene Mutation Associated with Vitreous Amyloidosis in Chinese显示文摘Purpose:To analyse the hereditary features of a Chinese pedigree with familial vitreous amyloidosis in Liaoning Province,China,and to investigate the correlation between the clinical appearance of the disease and transthyretin(TTR)gene mutation,including the locus and type of TTR gene mutation.Methods:Five patients (10 eyes) from one Chinese family were diagnosed with vitreous amyloidosis between July 1996 and April 2009.Family members were followed up subsequently,and peripheral venous blood was obtained from 13 subjects (including 2 patients,and 11 controls without clinical signs of disease).DNA samples were extracted and 4 exons of the TTR gene were amplified by polymerase chain reaction (PCR).The gene fragments were subjected to sequencing analysis.The results were analyzed with DNAMAN Windows 5.2.2.0 and Chromas sequence chart analysis software,TTR gene exons were compared between affected patients and normal controls.Results:Family pedigree analysis revealed that patients were distributed in three generations.Male and female subjects had equal prevalence,and only one parent of affected patients had signs of disease.TTR gene exon sequencing showed that the sequence of patients was identical to that of normal individuals.No TTR gene mutations were noted in 10 unaffected family members.However,a TTR Gly-54 point mutation in the 2nd exon was detected in two patients and 1 unaffected family member (one of the patients' daughters).Vitreous samples in 4 cases (7 eyes) showed positive Congo red staining,suggesting that these family members suffered from familial vitreous amyloidosis.Conclusion:This pedigree affected with familial vitreous amyloidosis was characterized by autosomal dominant inheritance;.a TTR Gly-54 point mutation in the 2nd exon is presumed to be the cause.This Gly-54 point mutation of the TTR gene is a novel mutation in vitreous amyloidosis. | Yining Shi Jing Li Jia Hu Jun Hu Lijun Sun Huijin Li Rui Shi Le Yang Ye Sun Chan Li | 2011 | Eye Science2011，26，4： | 9 |
| 16 | PM2.5污染特征分析及其与气象因子的相关性显示文摘分析PM2.5的污染特征,研究它在各阶段的浓度变化规律及其与气象因子的相关性;探讨PM2.5可行的控制途径。通过记录烟台市一年间11个监测点位的大气颗粒物数据和逐日的气象数据;利用SPSS软件对数据进行统计分析;结果表明:PM2.5在一天内的时均浓度呈'M'型双峰的变化规律;采暖期PM2.5的质量浓度是非采暖期的1.27倍,非采暖期PM2.5占PM10的比重为59%,在采暖期上升到63%;最为靠海的监测点污染状况明显好于其他站点;气象因子在PM2.5浓度变化中起到的作用各有不同。在城市发展公交导向型交通能降低居民对机动车的依赖,减少汽车尾气的排放;对大气污染物实施人工降雨和进行湿沉降会是治理气溶胶污染的突破口。 | 胡子超 吴广芬 Guo Xu Jia Rui Liu Zhen | 2017 | 科技通报2017，33，4： | 9 |
| 17 | Combination of mild therapeutic hypothermia and adipose-derived stem cells for ischemic brain injury显示文摘Mild therapeutic hypothermia has been shown to mitigate cerebral ischemia, reduce cerebral edema, and improve the prognosis of patients with cerebral ischemia. Adipose-derived stem cell-based therapy can decrease neuronal death and infiltration of inflammatory cells, exerting a neuroprotective effect. We hypothesized that the combination of mild therapeutic hypothermia and adipose-derived stem cells would be neuroprotective for treatment of stroke. A rat model of transient middle cerebral artery occlusion was established using the nylon monofilament method. Mild therapeutic hypothermia(33°C) was induced after 2 hours of ischemia. Adipose-derived stem cells were administered through the femoral vein during reperfusion. The severity of neurological dysfunction was measured by a modified Neurological Severity Score Scaling System. The area of the infarct lesion was determined by 2,3,5-triphenyltetrazolium chloride staining. Apoptotic neurons were detected by terminal deoxynucleotidyl transferase-mediated d UTP-biotin nick end labeling(TUNEL) staining. The regeneration of microvessels and changes in the glial scar were detected by immunofluorescence staining. The inflammatory responses after ischemic brain injury were evaluated by in situ staining using markers of inflammatory cells. The expression of inflammatory cytokines was measured by reverse transcription-polymerase chain reaction. Compared with mild therapeutic hypothermia or adipose-derived stem cell treatment alone, their combination substantially improved neurological deficits and decreased infarct size. They synergistically reduced the number of TUNEL-positive cells and glial fibrillary acidic protein expression, increased vascular endothelial growth factor levels, effectively reduced inflammatory cell infiltration and down-regulated the m RNA expression of the proinflammatory cytokines interleukin-1β, tumor necrosis factor-α and interleukin-6. Our findings indicate that combined treatment is a better approach for treating stroke compared with mild therapeutic hypothermia or adipose-derived stem cells alone. | Kai Zhao Rui Li Sheng Bi Yu Li Long Liu Yu-Long Jia Peng Han Chang-Cong Gu Xi-Ze Guo Wan-Ping Zhang Chun Wang Chun-Ying Pei Lin-Lu Tian Li-Xian Li | 2018 | Neural Regeneration Research2018，13，10： | 9 |
| 18 | Formative mechanism of intracanal fracture fragments in thoracolumbar burst fractures: a finite element study显示文摘 | ZENG Zhi-li ZHU Rui LI Shan-zhu YU Yan WANG Jian-jie JIA Yong-wei CHEN Bo CHENG Li-ming | 2013 | Chinese Medical Journal2013，，15： | 9 |
| 19 | Integrated physiologic,proteomic,and metabolomic analyses of Malus halliana adaptation to saline–alkali stress显示文摘Saline–alkali stress is a severely adverse abiotic stress limiting plant growth.Malus halliana Koehne is an apple rootstock that is tolerant to saline–alkali stress.To understand the molecular mechanisms underlying the tolerance of M.halliana to saline–alkali stress,an integrated metabolomic and proteomic approach was used to analyze the plant pathways involved in the stress response of the plant and its regulatory mechanisms.A total of 179 differentially expressed proteins(DEPs)and 140 differentially expressed metabolites(DEMs)were identified.We found that two metabolite-related enzymes(PPD and PAO)were associated with senescence and involved in porphyrin and chlorophyll metabolism;six photosynthesis proteins(PSAH2,PSAK,PSBO2,PSBP1,and PSBQ2)were significantly upregulated,especially PSBO2,and could act as regulators of photosystem II(PSII)repair.Sucrose,acting as a signaling molecule,directly mediated the accumulation of D-phenylalanine,tryptophan,and alkaloid(vindoline and ecgonine)and the expression of proteins related to aspartate and glutamate(ASP3,ASN1,NIT4,and GLN1−1).These responses play a central role in maintaining osmotic balance and removing reactive oxygen species(ROS).In addition,sucrose signaling induced flavonoid biosynthesis by activating the expression of CYP75B1 to regulate the homeostasis of ROS and promoted auxin signaling by activating the expression of T31B5_170 to enhance the resistance of M.halliana to saline–alkali stress.The decrease in peroxidase superfamily protein(PER)and ALDH2C4 during lignin synthesis further triggered a plant saline–alkali response.Overall,this study provides an important starting point for improving saline–alkali tolerance in M.halliana via genetic engineering. | Xu-mei Jia Yan-fang Zhu Ya Hu Rui Zhang Li Cheng Zu-lei Zhu Tong Zhao Xiayi Zhang Yan-xiu Wang | 2019 | Horticulture Research2019，6，1： | 9 |
| 20 | Proanthocyanidins Inhibit Seed Germination by Maintaining a High Level of Abscisic Acid in Arabidopsis thaliana显示文摘Proanthocyanidins (PAs) are the main products of the flavonoid biosynthetic pathway in seeds, but their biological function during seed germination is still unclear. We observed that seed germination is delayed with the increase of exogenous PA concentration in Arabidopsis. A similar inhibitory effect occurred in peeled Brassica napus seeds, which was observed by measuring radicle elongation. Using abscisic acid (ABA), a biosynthetic and metabolic inhibitor, and gene expression analysis by real-time polymerase chain reaction, we found that the inhibitory effect of PAs on seed germination is due to their promotion of ABA via de novo biogenesis, rather than by any inhibition of its degradation. Consistent with the relationship between PA content and ABA accumulation in seeds, PA-deficient mutants maintain a lower level of ABA compared with wild-types during germination. Our data suggest that PA distribution in the seed coat can act as a doorkeeper to seed germination. PA regulation of seed germination is mediated by the ABA signaling pathway. | Liguo Jia Qiuyu Wu Nenghui Ye Rui Liu Lu Shi Weifeng Xu Hui Zhi A. N. M. Rubaiyath Bin Rahman Yiji Xia Jianhua Zhang | 2012 | Journal of Integrative Plant Biology2012，54，9： | 9 |
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