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1271篇 您的检索式:作者名="SUN Ge"
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1Effect of Soil Drought Stress on Leaf Water Status, Membrane Permeability and Enzymatic Antioxidant System of Maize显示文摘A simulation experiment on the responses of maize (Zea mays L.) from the third leaf stage to maturity for different soil water levels (well-watered, moderately stressed, and severely stressed) was conducted by controlling irrigation and using a mobile rain shelter in a neutral loam, meadow soil to determine the effects on leaf water status, membrane permeability and enzymatic antioxidant system for different growth stages. The results indicated that drought stress relied on drought intensity and duration, with more severe drought stress creating more serious effects on maize. Compared with well-watered conditions, during the silking and blister stages moderate stress did not significantly change the relative water content (RWC) and did change significantly the relative conductivity (RC) (P < 0.05) of the leaves; however, severe stress did significantly decrease (P < 0.01) the leaf RWC and increase (P < 0.01) membrane permeability (leaf relative conductivity). Furthermore, under severe drought stress antioxidant enzyme activities declined significantly (P < 0.01) in later stages, namely for superoxide dismutase (SOD) the tasseling and blister stages, for peroxidase (POD) the milk stage, and for catalase (CAT) during the tasseling, blister, and milk stages. Meanwhile, membrane lipid peroxidation (measured as malondialdehyde content) significantly increased (P < 0.01) in all stages.BAI Li-Ping SUI Fang-Gong GE Ti-Da SUN Zhao-Hui LU Yin-Yan ZHOU Guang-Sheng 2006Pedosphere2006,16,3:82
2FTO-dependent demethylation of N6-methyladenosine regulates mRNA splicing and is required for adipogenesis显示文摘Xu Zhao Ying Yang Bao-Fa Sun Yue Shi Xin Yang Wen Xiao Ya-Juan Hao Xiao-Li Ping Yu-Sheng Chen Wen-Jia Wang Kang-Xuan Jin Xing Wang Chun-Min Huang Yu Fu Xiao-Meng Ge Shu-Hui Song Hyun Seok Jeong Hiroyuki Yanagisawa Yamei Niu Gui-Fang Jia Wei Wu Wei-Min Tong Akimitsu Okamoto Chuan He Jannie M Rendtlew Danielsen Xiu-Jie Wang Yun-Gui Yang 2014Cell Research2014,24,12:109
3Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
4Prevalence of Autism Spectrum Disorder in China:A Nationwide Multi-center Population-based Study Among Children Aged 6 to 12 Years显示文摘This study aimed to obtain the first national estimate of the prevalence of autism spectrum disorder(ASD) in Chinese children.We targeted the population of 6 to 12-year-old children for this prevalence study by multistage convenient cluster sampling.The Modified Chinese Autism Spectrum Rating Scale was used for the screening process.Of the target population of 142,086 children,88.5%(n=125,806) participated in the study.A total of 363 children were confirmed as having ASD.The observed ASD prevalence rate was 0.29%(95% CI:0.26%-0.32%) for the overall population.After adjustment for response rates,the estimated number of ASD cases was867 in the target population sample,thereby achieving an estimated prevalence of 0.70%(95% CI:0.64%-0.74%).The prevalence was significantly higher in boys than in girls(0.95%;95% CI:0.87%-1.02% versus 0.30%;95%CI:0.26%-0.34%;P <0.001).Of the 363 confirmed ASD cases,43.3% were newly diagnosed,and most of those(90.4%) were attending regular schools,and 68.8% of the children with ASD had at least one neuropsychiatric comorbidity.Our findings provide reliable data on the estimated ASD prevalence and comorbidities in Chinese children.Hao Zhou Xiu Xu Weili Yan Xiaobing Zou Lijie Wu Xuerong Luo Tingyu Li Yi Huang Hongyan Guan Xiang Chen Meng Mao Kun Xia Lan Zhang Erzhen Li Xiaoling Ge Lili Zhang Chunpei Li Xudong Zhang Yuanfeng Zhou Ding Ding Andy Shih Eric Fombonne Yi Zheng Jisheng Han Zhongsheng Sun Yong-hui Jiang Yi Wang LATENT-NHC Study Team 2020Neuroscience Bulletin2020,36,9:158
5Phylogeographic studies of plants in China: Advances in the past and directions in the future显示文摘抽象 Phylogeography 是最近的年里的进化生物学的一个主要焦点,与在中国种类的许多重要进展。在这个问题,我们由中国实验室收集了植物的 11 phylogeographic 研究。我们进一步综合了主要调查结果和 phylogeographic 研究应该在来年里被指导的从这些和在中国的以前的 phylogeographic 研究新兴、问的模式。众多的例子证明了在中国的 phylogeographic 模式没显示出全体的一个期望的 expansioncontraction 模式规模,反射证明没有统一的冰表在第四级的时期期间在中国发展了的地质的记录。相反,地区性的扩大和 intraspecific 分叉在第四级的摆动期间在最学习的种类是很普通的。不同 intraspecific 系或等位基因(haplotypes ) 在多重局部性的 refugia,地区性或本地的扩大在哪儿是可能的开始了被检测。杂交和基因渗入在 intraspecific 系之间或在不同种类之间是经常的。我们也为 phylogeographic 分析考察了计算方法。尽管有在最近的年里取得的大进步,在那里仍然是大部分关于 spatialtemporal 尺寸和中国植物的内在的种形成机制发现。Phylogeographic 研究代表连接类发展史(大进化)( 微进化) 和种形成和改编的关键结。因此,我们倡导那:在中国的植物的(i) phylogeographic 研究应该被指导到密切相关的种或一个 monophyletic 组(例如,一个类或节) 在来年里;并且(ii ) 人口基因数据基于直接定序多重 loci,特别那些应该广泛地从原子染色体和统计测试被采用并且强制。恢复 intraspecific 分叉和 phylogeographic 模式多重种类可以允许我们更好在中国理解高植物差异并且为在这个区域学习植物种形成和多样化机制建立具体假设。Jian-Quan LIU Yong-Shuai SUN Xue-Jun GE Lian-Ming GAO Ying-Xiong QIU 2012Journal of Systematics and Evolution2012,50,4:49
6涡度相关法研究土壤水分状况对沙地杨树人工林生态系统能量分配和蒸散日变化的影响显示文摘为了解位于北京大兴区林场杨树人工林在不同的土壤水分环境条件下的水汽交换过程和能量的分配差异及其与环境因子关系,运用涡度相关(Eddycovariance,EC)法开路系统、常规微气象观测系统及土壤热通量板等设施对生态系统生长季内典型水分胁迫和无水分胁迫条件下蒸散日变化、能量分配以及与各环境因子的关系进行了测定分析和比较。结果表明,在水分严重胁迫日(以7月7日为例),蒸散日变化过程为单峰曲线,全天(24h)蒸散量为2·4mm;而在无水分胁迫典型日(以7月25日为例),蒸散日变化过程呈多峰曲线,全天蒸散量为4·5mm。能量平衡分析显示,无水分胁迫条件下潜热通量(LE)占净辐射通量(Rn)的比例远高于水分胁迫条件下潜热通量占净辐射通量的比例,说明水分充足时,能量的大部分用于蒸散。水分胁迫条件下蒸散速率与各环境因子的相关性均低于无水分胁迫条件下蒸散速率与环境因子的相关性。水分胁迫条件下,蒸散速率主要与净辐射和下垫面因子关系显著,而与其它因子的相关性较小;无水分胁迫条件下,蒸散速率与下垫面土体含水量和各气象因子均表现出较强的相关性。大气温度对于两个典型日蒸散速率的影响均很小;土壤含水量与水分胁迫日的蒸散速率几乎没有相关性,反应出土壤水分含量低至对蒸散几乎没有贡献了。刘晨峰 张志强 查同刚 Ge Sun Chen Jiquan 朱金兆 申李华 张津林 陈军 崔令军 2006生态学报2006,26,8:28
7鼎湖山针阔混交林旱季能量平衡研究显示文摘运用涡度相关(Eddy covariance,EC)法开路系统、常规微气象观测系统及土壤热通量板等设施对鼎湖山季风常绿阔叶林旱季(2003/1/9-2003/1/23)的能量分量进行测定。结果表明,平均净辐射通量(Netradiation,Rn)为53.14Wm-2,与下行短波辐射具有相同的变化趋势。林冠上层EC法潜热通量(Latentheat,LE)、显热通量(Sensibleheat,Hs)实测平均值分别为57.18Wm-2、43.40Wm-2,林冠下层分别为12.61Wm-2、7.61Wm-2。白昼EC法所测得的LE和Hs数据与利用波文比-能量平衡法(Bowenratioandenergybalance,BREB)计算出的数据相比,略偏低,而夜间及凌晨数据差异较大。土壤热通量日变化曲线呈“S”形,平均土壤热通量为-1.50Wm-2,表面土壤总热通量(Gt)仅为5cm处土壤热通量的84.0%,可见表层土壤尽管很薄,但其热储量不能忽略。将LE、Hs之和与可供能量(Rn-Gt)进行闭合,回归直线斜率为0.9128,相关系数达0.8517,与许多研究结果的60%-90%的区间相符,这说明鼎湖山涡度相关法通量观测数据是非常可靠的。王旭 尹光彩 周国逸 闫俊华 SUN Ge 王春林 2005热带亚热带植物学报2005,13,3:26
8Postharvest Chitosan Treatment Induces Resistance in Potato Against Fusarium sulphureum显示文摘The effects of chitosan treatment and inoculation on dry rot in tubers and slices of potato were studied. The results showed that chitosan treatment significantly reduced the lesion diameter of potato inoculated with Fusarium sulphureum. The treatment at 0.25% showed the best effect. Chitosan at 0.25% increased the activities of peroxidase and polyphenoloxidase,and the contents of flavonoid compounds and lignin in tissues. Increased activities of β-1,3-glucanase,and phenylalanine ammonialyase were observed,but there were no significant differences between the treated and the control. These findings suggested that the effects of chitosan could be associated with the induced resistance against Fusarium dry rot in potato.SUN Xiao-juan BI Yang LI Yong-cai HAN Rui-feng GE Yong-hong 2008Agricultural Sciences in China2008,7,5:25
9Control of a Quadruped Robot with Bionic Springy Legs in Trotting Gait显示文摘Mantian Li Zhenyu Jiang Pengfei Wang Lining Sun Shuzhi Sam Ge 2014Journal of Bionic Engineering2014,11,2:25
10Circular RNA circ-LDLRAD3 as a biomarker in diagnosis of pancreatic cancer显示文摘AIM To analyze the diagnostic value of a circular RNA(circR NA), circ-LDLRAD3, in pancreatic cancer.METHODS Expression levels of circ-LDLRAD3 were tested in both cells and clinical samples; the latter included 30 paired pancreatic cancer tissues and adjacent non-tumorous tissues, 31 plasma samples from patients with pancreatic cancer, and 31 plasma samples from healthy volunteers. Real-time quantitative reverse transcriptionpolymerase chain reaction(q RT-PCR) was performed to measure expression levels of circ-LDLRAD3 in cells and clinical samples; then, the relationship between clinicopathological factors of patient samples and expression of circ-LDLRAD3 in pancreatic cancer was analyzed. The diagnostic value of circ-LDLRAD3 was verified by receiver operating characteristic(ROC) curve analysis.RESULTS Circ-LDLRAD3 was up-regulated in pancreatic cancer cell lines(P < 0.01), pancreatic cancer tissues(P < 0.01), and plasma samples from patients with pancreatic cancer(P < 0.01). High expression of circLDLRAD3 was significantly associated with venous invasion, lymphatic invasion, and metastasis. The area under the ROC curve of circ-LDLRAD3 alone or combination with CA19-9 was 0.67 and 0.87, respectively, with a sensitivity and specificity of 0.5738(alone) and 0.7049(alone), and 0.8033(combination) and 0.9355(combination), respectively.CONCLUSION These data suggest that circ-LDLRAD3 may be a biomarker in the diagnosis of pancreatic cancer.Fan Yang Dong-Yan Liu Jin-Tao Guo Nan Ge Ping Zhu Xiang Liu Sheng Wang Guo-Xin Wang Si-Yu Sun 2017World Journal of Gastroenterology2017,23,47:25
11电针和经皮穴位电刺激技术在生殖医学中的应用:专家共识(英文)显示文摘本文从传统针刺治疗不孕症的选穴依据与现代电针/经皮穴位电刺激技术的相关原理着手,从最优刺激参数选择、穴位辨证、疗程与治疗次数的确定及基本原理等方面阐述了电针/经皮穴位电刺激技术在多囊卵巢综合症、取卵镇痛、卵巢储备功能降低、胚胎移植以及男性少/弱精症等生殖领域中的具体应用。首次对电针/经皮穴位电刺激技术在生殖领域优势病种中的应用进行了系统的分析和总结,在最优刺激参数选择、穴位辨证、疗程与治疗次数的确定等方面提出了一系列专家共识,并为临床实践提供了指导意见和理论依据。Fan QU Rong LI Wei SUN Ge LIN Rong ZHANG Jing YANG Li TIAN Guo-gang XING Hui JIANG Fei GONG Xiao-yan LIANG Yan MENG Jia-yin LIU Li-ying ZHOU Shu-yu WANG Yan WU Yi-jing HE Jia-yu YE Song-ping HAN Ji-sheng HAN 2017Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2017,18,3:24
122016 Chinese expert consensus and guidelines for the diagnosis and treatment of papillary thyroid microcarcinoma显示文摘The incidence of papillary thyroid carcinoma(PTC)has exponentially increased in recent years.Papillary thyroid microcarcinoma(PTMC)accounts for the majority of the reported cases of PTC.The debates and crucial issues in PTMC management have received researchers'attention.To further improve the clinical management of PTMC in China,Ming Gao Minghua Ge Qinghai Ji Ruochuan Cheng Hankui Lu Haixia Guan Li Gao Zhuming Guo Tao Huang Xiaoming Huang Xiaoming Li Yansong Lin Qinjiang Liu Xin Ni Yi Pan Jianwu Qin Zhongyan Shan Hui Sun Xudong Wang Zhengang Xu Yang Yu Daiwei Zhao Naisong Zhang ShengZhang Ying Zheng Jingqiang Zhu Dapeng Li Xiangqian Zheng 2017Cancer Biology & Medicine2017,14,3:23
13Impacts of soil organic matter, pH and exogenous copper on sorption behavior of norfloxacin in three soils显示文摘Norfloxacin sorption and the factors (soil organic matter (SOM), pH, and exogenous copper (Cu) inffluencing the sorption were investigated in a black soil (soil B), a ?uvo-aquic soil (soil F), and a red soil (soil R). With increasing norfloxacin concentrations, sorption amount of norfloxacin increased in both the bulk soils and their SOM-removed soils, but the sorption capacity of SOM-removed soils was higher than that of their corresponding bulk soils, indicating that the process of norfloxacin sorption in soil was influenced by the soil properties including SOM. The sorption data in all bulk soils and SOM-removed soils were fitted to Freundlich and Langmuir models. The correlation coeflcients suggested that the experimental data fitted better to Freundlich equation than to Langmuir equation. Furthermore, the data from soil F and SOM-removed F could not be described by Langmuir equation. The norfloxacin sorption amount decreased in soil B and soil F, whereas it increased in soil R as solution pH increased. The maximum KD and KOC were achieved in soil R when the equilibrium solution pH was 6. The norfloxacin sorption was also influenced by the exogenous Cu2+, which depended on the soil types and Cu2+ concentrations. With increasing Cu2+ concentrations in solution, generally, sorption amount, KD and KOC for norfloxacin in soils increased and were up to a peak at 100 mg/L Cu2+, and then the sorption amount decreased regardless of norfloxacin levels.ZHANG Jie LI Zhaojun GE Gaofei SUN Wanchun LIANG Yongchao WU Laosheng 2009Journal of Environmental Sciences2009,21,5:21
14Curative effect of heat-sensitive moxibustion on chronic persistent asthma: a multicenter randomized controlled trial显示文摘OBJECTIVE:To compare the curative effects of heat-sensitive moxibustion with conventional drugs on chronic persistent asthma and seek a valuable therapy to replaceWestern Medicine.METHODS:The participants in this multi-center,randomized,and controlled study were randomly divided into two groups:group A(n=144),treated with heat-sensitive moxibustion(50 sessions)and group B(n=144),treated with Seretide(salmeterol50μg/fluticasone 250μg,twice a day).The scores of asthma control test(ACT),forced expiratory volume in 1 second(FEV1),peak expiratory flow(PEF),and attack frequency were measured after 15,30,60,and 90 days of treatment.Patients followed up3 and 6 months after treatment.RESULTS:There was a significant difference(P=0.0002)in the ACT score and lung function between the two groups after 3 months of treatment and(P=0.000 03)during the follow-up visits.In addition,heat-sensitive moxibustion reduced attack frequency in the period from inclusion to the6-month follow-up visit.CONCLUSION:This study shows that heat-sensitive moxibustion may have a comparable curative effect toSeretide(salmeterol/fluticasone)on asthma.Rixin Chen Mingren Chen Jun Xiong Zhenhai Chi B0 Zhang Ning Tian Zhenhua Xu Tangfa Zhang Wanyao Li Wei Zhang Xiaofeng Rong Zhen Wang Gang Sun Baohe Ge Guoxiong Yu Nanchang Song 2013Journal of Traditional Chinese Medicine2013,33,5:20
15Inhibition of hepatitis B virus replication by quercetin in human hepatoma cell lines显示文摘Hepatitis B virus(HBV) infection is one of the most serious and prevalent viral diseases in the world. Although several anti-HBV drugs have been used clinically, their side and adverse effects limit treatment efficacy. Therefore, it is necessary to identify novel potential anti-HBV agents. The flavonol quercetin has shown activity against some retroviruses, but its effect on HBV remains unclear. In the present study, quercetin was incubated with Hep G2.2.15 cells, as well as Hu H-7 cells transfected with an HBV plasmid. Quercetin was shown to significantly reduce Hepatitis B surface antigen(HBs Ag) and Hepatitis B e antigen(HBe Ag), secretion and HBV genomic DNA levels in both cell lines. In addition, co-incubation with lamivudine(3TC), entecavir(ETV), or adefovir(Ade) further enhanced the quercetin-induced inhibition of HBV replication. This inhibition was partially associated with decreased heat shock proteins and HBV transcription levels. The results indicate that quercetin inhibited HBV antigen secretion and genome replication in human hepatoma cell lines, which suggests that quercetin may be a potentially effective anti-HBV agent.Zhikui Cheng Ge Sun Wei Guo Yayun Huang Weihua Sun Fei Zhao Kanghong Hu 2015Virologica Sinica2015,30,4:20
16Thermal energy storage:Challenges and the role of particle technology显示文摘Thermal energy is at the heart of the whole energy chain providing a main linkage between the primary and secondary energy sources.Thermal energy storage(TES)has a pivotal role to play in the energy chain and hence in future low carbon economy.However,a competitive TES technology requires a number of scientific and technological challenges to be addressed including TES materials,TES components and devices,and integration of TES devices with energy networks and associated dynamic optimization.This paper provides a perspective of TES technology with a focus on TES materials challenges using molten salts based phase change materials for medium and high temperature applications.Two key challenges for the molten salt based TES materials are chemical incompatibility and low thermal conductivity.The use of composite materials provides an avenue to meeting the challenges.Such composite materials consist of a phase change material,a structural supporting material,and a thermal conductivity enhancement material.The properties of the supporting material could determine the dispersion of the thermal conductivity enhancement material in the salt.A right combination of the salt,the structural supporting material,and the thermal conductivity enhancement material could give a hierarchical structure that is able to encapsulate the molten salt and give a substantial enhancement in the thermal conductivity.Understanding of the structure-property relationships for the composite is essential for the formulation design and fabrication of the composite materials.Linking materials properties to the system level performance is recommended as a key future direction of research.Zhiwei Ge Yongliang Li Dacheng Li Ze Sun Yi Jin Chuanping Liu Chuan Li Guanghui Leng Yulong Ding 2014Particuology2014,12,4:20
17Prevention of hepatocellular carcinoma in mice by IL-2 and B7-1 genes co-transfected liver cancer cell vaccines显示文摘AIM: To study the immunoprotective effect of liver cancer vaccine with co-transfected IL-2 and B7-1 genes on hepatocarcinogenesis in mice.METHODS: The murine liver cancer cell line Hepal-6 was transfected with IL-2 and/or B7-1 gene via recombinant adenoviral vectors and the liver cancer vaccines were prepared. C57BL/6 mice were immunized with these vaccines and challenged with the parental Hepal-6 cells afterwards.The immunoprotection was investigated and the reactive T cell line was assayed.RESULTS: The immunoprotection of the tumor vaccine was demonstrated. The effect of IL-2 and B7-1 genes cotransfected Hepal-6 liver cancer vaccine (Hep6-IL2/B7vaccine) on the onset of tumor formation was the strongest.When attacked with wild Hepal-6 cells, the median survival period of the mice immunized with Hep6-IL2/B7 vaccine was the longest (68 days, χ2=7.70-11.69, P<0.05) and the implanted tumor was the smallest (z =3.20-44.10, P<0.05).The effect of single IL-2 or B7-1 gene-transfected vaccine was next to the IL2/B7 gene co-transfected group, and the mean survival periods were 59 and 54 days, respectively.The mean survival periods of wild or enhanced green fluorescence protein gene modified vaccine immunized group were 51 and 48 days, respectively. The mice in control group all died within 38 days and the implanted tumor was the largest (z=3.20-40.21, P<0.05). The cellular immunofunction test and cytotoxicity study showed that the natural killer (NK) cell, lymphokine activated killer (LAK) cell and cytotoxic T lymphocyte (CTL) activities were significantly increased in mice immunized with the Hep6-IL2/B7 vaccine, (29.5±2.5%,65.0±2.9%, 83.1±1.5% respectively, compared with other groups, P<0.05).CONCLUSION: The Hep6-IL2/B7 liver cancer vaccines can induce the mice to produce activated and specific CTL against the parental tumor cells, and demonstrate stronger effect on the hepatocarcinogenesis than single gene modified or the regular tumor vaccine. Therefore, the vaccines may become a novel potential therapy for recurrence and metastasis of HCC.Ning-Ling Ge Sheng-Long Ye Ning Zheng Rui-Xia Sun Yin-Kun Liu Zhao-You Tang, Liver Cancer Institute of Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, China 2003World Journal of Gastroenterology2003,9,10:19
18Comprehensive metabolomics expands precision medicine for triple-negative breast cancer显示文摘Metabolic reprogramming is a hallmark of cancer.However,systematic characterizations of metabolites in triple-negative breast cancer(TNBC)are still lacking.Our study profiled the polar metabolome and lipidome in 330 TNBC samples and 149 paired normal breast tissues to construct a large metabolomic atlas of TNBC.Combining with previously established transcriptomic and genomic data of the same cohort,we conducted a comprehensive analysis linking TNBC metabolome to genomics.Our study classified TNBCs into three distinct metabolomic subgroups:C1,characterized by the enrichment of ceramides and fatty acids;C2,featured with the upregulation of metabolites related to oxidation reaction and glycosyl transfer;and C3,having the lowest level of metabolic dysregulation.Based on this newly developed metabolomic dataset,we refined previous TNBC transcriptomic subtypes and identified some crucial subtype-specific metabolites as potential therapeutic targets.The transcriptomic luminal androgen receptor(LAR)subtype overlapped with metabolomic C1 subtype.Experiments on patient-derived organoid and xenograft models indicate that targeting sphingosine-1-phosphate(S1P),an intermediate of the ceramide pathway,is a promising therapy for LAR tumors.Moreover,the transcriptomic basal-like immune-suppressed(BLIS)subtype contained two prognostic metabolomic subgroups(C2 and C3),which could be distinguished through machine-learning methods.We show that N-acetyl-aspartyl-glutamate is a crucial tumor-promoting metabolite and potential therapeutic target for high-risk BLIS tumors.Together,our study reveals the clinical significance of TNBC metabolomics,which can not only optimize the transcriptomic subtyping system,but also suggest novel therapeutic targets.This metabolomic dataset can serve as a useful public resource to promote precision treatment of TNBC.Yi Xiao Ding Ma Yun-Song Yang Fan Yang Jia-Han Ding Yue Gong Lin Jiang Li-Ping Ge Song-Yang Wu Qiang Yu Qing Zhang François Bertucci Qiuzhuang Sun Xin Hu Da-Qiang Li Zhi-Ming Shao Yi-Zhou Jiang 2022Cell Research2022,32,5:18
19Investigation of scale inhibition mechanisms based on the effect of scale inhibitor on calcium carbonate crystal forms显示文摘To probe the scale inhibition mechanisms,calcium carbonate scale occurring before and after the ad- dition of scale inhibitors was collected.The results from scale SEM confirm that,without scale inhibitor, calcium carbonate scale shows rhombohedron and hexagon,which are the characteristic feathers of calcite.After addition of inhibitors,morphology of scale is changed,and the more efficient the scale inhibitor is,the more greatly the morphology is modified.To elucidate the scale constitute,they were further analyzed by FT-IR,XRD.Besides calcite,vaterite and aragonite occur in calcium carbonate scale after addition of inhibitors,and the higher scale inhibition efficiency is,the more vaterite presents in scale.It can be concluded that the alteration of morphology is ascribed to the change of crystal form. There are three stages in the crystallizing process including occurrence and disappearing of unstable phase,occurrence and disappearing of metastable phase,development of stable phase.Without scale inhibitors,metastable phases usually transform into stable phase,thus the main constitute of formed scale is calcite.When scale inhibitors are added,both formation and transformation of metastable phases are inhibited,which results in the occurrence of aragonite and vaterite.From the fact that more vaterite presents in scale with a more efficient scale inhibitor added,we can see that the function of scale inhibitor is realized mainly by controlling the crystallizing process at the second stage.ZHANG GuiCai GE JiJiang SUN MingQin PAN BinLin MAO Tao SONG ZhaoZheng 2007Science China Chemistry2007,50,1:17
20Low- and Mid-High Latitude Components of the East Asian Winter Monsoon and Their Reflecting Variations in Winter Climate over Eastern China显示文摘The present study defines a low-latitude component (regionally averaged winter 1000-hPa V-winds over 10 25°N, 105 135°E) and a mid-high-latitude component (regionally averaged winter 1000-hPa V-winds over 30 50°N, 110 125°E) of the East Asian winter monsoon (EAWM), which are denoted as EAWM-L and EAWM-M, respectively. The study examines the variation characteristics, reflecting variations in winter climate over eastern China, and associated atmospheric circulations corresponding to the two components. The main results are as follows: 1) the EAWM-L and EAWM-M have consistent variation in some years but opposite variations in other years; 2) the EAWM-M index mainly reflects the extensive temperature variability over eastern China, while the EAWM-L index better reflects the variation in winter precipitation over most parts of eastern China; and 3) corresponding to the variation in the EAWM-M index, anomalous winds over the mid-high latitudes of East Asia modulate the southward invasion of cold air from the high latitudes and accordingly affect temperatures over eastern China. In combination with the variation in the EAWM-L index, anomalous low-latitudinal winds regulate the water vapor transport from tropical oceans to eastern China, resulting in anomalous winter precipitation. These pronounced differences between the EAWM-L and the EAWM-M suggest that it is necessary to explore the monsoons' individual features and effects in the EAWM study.LIU Ge JI Li-Ren SUN Shu-Qing XIN Yu-Fei 2012Atmospheric and Oceanic Science Letters2012,5,3:17
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