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Current status and future of hepato–pancreatico–biliary surgery fellowship training in China
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作者 Yang-Yang Feng yun jin 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第12期3647-3649,共3页
The medical education system,particularly the fellowship training system,of China has been continuously developing and improving.China established the fellowship training system in 2016,with the period for general sur... The medical education system,particularly the fellowship training system,of China has been continuously developing and improving.China established the fellowship training system in 2016,with the period for general surgeons being 3 years.Among the various general surgery subspecialties,hepatopancreatobiliary(HPB)surgery has a specialized training period of approximately 6 months.Ho-wever,owing to the intricate anatomical knowledge and sophisticated surgical skills involved in HPB surgery,training excellent HPB surgeons in such a short period has always been a major challenge in the field of surgical education.This editorial summarizes the current situation,existing problems that need to be implemented for improving HPB fellowship in China.Finally,we hope to build a qualified HPB fellowship system that continually adapts to social development. 展开更多
关键词 Hepatopancreatobiliary Surgery FELLOWSHIP Surgical education Surgical skills training China
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热熔胶膜法制备硅硼改性酚醛树脂预浸料及复合材料
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作者 陈立新 贠瑾 +3 位作者 靳亮 刘晓丽 杨冬冬 王海波 《纤维复合材料》 CAS 2022年第4期150-154,共5页
纤维增强酚醛树脂基复合材料具有易成型、加工周期短和隔热性能好等优点,可用作烧蚀型热防护材料。本文对热熔胶膜法制备的高硅氧/硅硼改性酚醛预浸料及其复合材料进行了研究。硅硼改性酚醛树脂具有优异的热稳定性,氮气气氛下,800℃残... 纤维增强酚醛树脂基复合材料具有易成型、加工周期短和隔热性能好等优点,可用作烧蚀型热防护材料。本文对热熔胶膜法制备的高硅氧/硅硼改性酚醛预浸料及其复合材料进行了研究。硅硼改性酚醛树脂具有优异的热稳定性,氮气气氛下,800℃残碳率高达75.3%。高硅氧/硅硼改性酚醛预浸料的百分流动度、挥发份和树脂含量分别为21.3%、5.7%和40.2%。对比溶液法制备预浸料成型的层压板,采用热熔胶膜法制备的高硅氧/硅硼改性酚醛复合材料层压板的弯曲强度和层间剪切强度分别提高了56.2%和22.1%。氧乙炔线烧蚀率和质量烧蚀率分别为0.0498mm/s和0.0506g/s。高硅氧/硅硼改性酚醛复合材料优异的耐烧蚀性能有助于降低热防护材料的厚度,减轻火箭、导弹等的总体质量,对提高武器装备的性能具有重要的意义。 展开更多
关键词 硅硼改性酚醛树脂 热熔胶膜法 预浸料 力学性能 烧蚀性能
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以年径流总量控制率为目标的海绵城市规划案例分析
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作者 郝桂珍 贺丁丁 +2 位作者 于江杰 云晋 宋凤芝 《河北建筑工程学院学报》 CAS 2018年第3期54-59,共6页
海绵城市作为一种科学合理的新型城市开发建设方式,已融入到新型城镇化建设中.许多城市积极响应国家和省政府的号召,在海绵城市规划、设计、建设等各方面开展了相关探索和实践.本文以临汾市海绵城市规划为例,从海绵城市建设以年径流总... 海绵城市作为一种科学合理的新型城市开发建设方式,已融入到新型城镇化建设中.许多城市积极响应国家和省政府的号召,在海绵城市规划、设计、建设等各方面开展了相关探索和实践.本文以临汾市海绵城市规划为例,从海绵城市建设以年径流总量控制为目标进行分析,为海绵城市的建设提供相关案例经验. 展开更多
关键词 海绵城市 一级管控 二级管控 年径流总量控制率
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望虞河西岸湖荡群浮游植物群落与水环境因子的关系 被引量:2
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作者 金位栋 杨苏文 +3 位作者 云晋 郝桂珍 徐利 闫玉红 《水生态学杂志》 CSCD 北大核心 2022年第2期45-53,共9页
为了解过水型湖荡群浮游植物群落与水质变化特征,探究望虞河西岸湖荡群浮游植物时空分布及其环境影响因子,于2018年9月至2019年7月对望虞河西岸湖荡群(宛山荡、嘉凌荡、鹅真荡、漕湖)的浮游植物和水环境指标进行采样调查,并基于生物多... 为了解过水型湖荡群浮游植物群落与水质变化特征,探究望虞河西岸湖荡群浮游植物时空分布及其环境影响因子,于2018年9月至2019年7月对望虞河西岸湖荡群(宛山荡、嘉凌荡、鹅真荡、漕湖)的浮游植物和水环境指标进行采样调查,并基于生物多样性、Pearson线性相关性和冗余分析(RDA)方法对调查数据进行了分析。结果表明:(1)4个湖荡水质均处于GB3838-2002《地表水环境质量标准》V-劣V类水平,超标指标为总氮(TN)和化学需氧量(COD_(Cr)),春季优于其他季节。(2)湖荡群共鉴定浮游植物8门、72属、151种(含变种、变形),其中硅藻门、绿藻门、蓝藻门为优势门类;主要优势种包括小球藻(Chlorellavulgaris)、梅尼小环藻(Cyclotellameneghiniana)、颗粒直链藻(Melosira granulata)、铜绿微囊藻(Microcystisaeruginosa)、阿氏浮丝藻(Planktothrix agardhii);年均生物量为13.48 mg/L,年均藻细胞密度为15.25×10^(6)个/L;湖荡群浮游植物多样性指数呈秋高夏低趋势,处于中污染型至重污染型的过渡状态,其中Shannon-Wiener多样性指数为2~3,Pielou均匀度指数为0.5~0.8,Margalef丰富度指数为1~2。(3)Pearson相关性与RDA分析表明,影响浮游植物的主要环境因子为水温(WT)、氨氮(NH_(4)^(+)-N)和硝氮(NO_(3)^(-)-N)。研究显示,望虞河西岸湖荡群浮游植物空间分布不均、季节特征明显;与太湖相比,优势种相近且多样性指数较高,但湖荡群水质较差,建议持续监测并加强针对性治理措施。 展开更多
关键词 望虞河 浮游植物 环境因子 湖荡群 群落结构
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基于结构方程模型的望虞河西岸湖荡群生态系统健康评价 被引量:1
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作者 云晋 金位栋 +3 位作者 杨苏文 郝桂珍 徐利 闫玉红 《环境科学与技术》 CAS CSCD 北大核心 2020年第6期216-222,共7页
为了解望虞河西岸湖荡群生态系统健康程度,文章通过构建结构方程模型对望虞河西岸湖荡群健康进行评价,并对指标体系和评价方法的适宜性进行验证,选取适宜的测量指标,对评估结果进行合理性分析,划分不同区域水生态系统健康等级,确定影响... 为了解望虞河西岸湖荡群生态系统健康程度,文章通过构建结构方程模型对望虞河西岸湖荡群健康进行评价,并对指标体系和评价方法的适宜性进行验证,选取适宜的测量指标,对评估结果进行合理性分析,划分不同区域水生态系统健康等级,确定影响湖泊水生态系统健康的关键指标,对研究区域湖荡群的生态系统健康状况进行阐述说明,并对湖荡群现存的问题提出合理建议。研究表明总磷和氨氮因子载荷较大,是水质污染最直接的2个因子。沉积物总氮因子负荷较大,是湖泊主要的内源污染负荷。人均GDP和工业生产总值对生态系统造成严重影响,对湖泊造成污染。根据模型输出结果所得数值将湖泊生态系统健康划分为5个等级,得出研究区采样断面有57.8%断面属于不健康状态或病态,超过半数,表明湖荡群水生态系统受到破坏,需对其进行生态修复。 展开更多
关键词 生态系统健康 结构方程模型 望虞河西岸 湖荡群
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永定河上游水质污染特征及评价 被引量:12
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作者 云晋 郝桂珍 +3 位作者 宋凤芝 甄玉飞 徐利 裴宏伟 《河北建筑工程学院学报》 CAS 2018年第4期80-84,共5页
根据2017年4~11月张家口市清水河9项指标监测数据,采用单项污染指数法和综合污染指数法对水质进行综合评价.通过各指标的水质变化分析水质状况以及影响水质指标的原因,调查污染来源.结果表明,清水河流域流经张家口地区部分农田,由于农... 根据2017年4~11月张家口市清水河9项指标监测数据,采用单项污染指数法和综合污染指数法对水质进行综合评价.通过各指标的水质变化分析水质状况以及影响水质指标的原因,调查污染来源.结果表明,清水河流域流经张家口地区部分农田,由于农业灌溉导致氮肥流失严重,经过地表径流后使水体中总氮含量超标,氨氮、总磷基本符合Ⅲ类水质标准.崇礼地区COD为Ⅲ类水质标准,市区内超过劣Ⅴ类水质标准.污水处理厂附近的氨氮,总氮和总磷明显较高,污水处理厂的排水可能是污染的主要来源.需对污水厂进行进一步检测.分别从农业面源污染、生活污染、内源污染三个方面进行分析,得出在崇礼区农业面源污染为主要污染来源,而在市区内源污染为清水河的主要污染来源. 展开更多
关键词 清水河 水质变化特征 污染源分析
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北方人为改造河流叶绿素a和环境因子时空分布特征及其相关性分析 被引量:3
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作者 徐利 郝桂珍 +3 位作者 甄玉飞 宋凤芝 云晋 张守明 《科学技术与工程》 北大核心 2018年第26期147-152,共6页
以一个典型上游自然河流下游人为改造为城市景观河的水体张家口市清水河为研究对象,2017年3月~12月监测了两个区域8个点位的水质变化情况,总结了叶绿素a(Chl-a)和环境因子的时空分布特征,并分析其相关性。结果表明,水温(WT)、溶解氧(DO... 以一个典型上游自然河流下游人为改造为城市景观河的水体张家口市清水河为研究对象,2017年3月~12月监测了两个区域8个点位的水质变化情况,总结了叶绿素a(Chl-a)和环境因子的时空分布特征,并分析其相关性。结果表明,水温(WT)、溶解氧(DO)、氨氮(NH_4^+-N)、总磷(TP)和总氮(TN)空间变化较为明显;WT、DO、NH_4^+-N、TN季节变化较为明显,TP季节变化不明显;p H时空变化不显著。源头区域的Chl-a含量较低,市中心坝区Chl-a含量相对上游流域源头区域有很显著的增加;市中心区域Chl-a含量在时间尺度上总体呈现夏季最高、春秋季略低的规律;而源头区域Chl-a含量时间尺度变化特征不明显。源头区域Chl-a含量只与WT呈现极显著正相关关系;市中心坝区与Chl-a含量呈极显著性正相关关系的环境因子为DO、CODcr、TP,呈显著性正相关的为WT、pH,呈极显著性负相关的为TN,而与NH_4^+-N无显著相关。TN/TP的平均值为33.13∶1,而营养盐与Chl-a对数相关性中TN、TN/TP呈极显著负相关,与TP呈极显著正相关。说明源头区域Chl-a含量受水体温度影响较大,但浓度较低变幅不大;市中心坝区Chl-a含量主要限制因子为磷元素且浓度较高变幅较大。 展开更多
关键词 人为改造河流 叶绿素A 环境因子 分布特征 相关性
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含硼硅酚醛树脂的制备及耐热性研究 被引量:2
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作者 贠瑾 赵辉 +1 位作者 汪瑾 李扬 《当代化工》 CAS 2023年第3期541-545,672,共6页
酚醛树脂由于成型工艺简单、成本低和具有优异耐烧蚀性能而被广范应用于航空航天和武器装备等领域。为了进一步提高酚醛树脂的耐热性,分别采用两种方法制备含硼硅酚醛树脂,研究发现,分两步将硼元素和硅元素分别以B—O—C结构和Si—O—B... 酚醛树脂由于成型工艺简单、成本低和具有优异耐烧蚀性能而被广范应用于航空航天和武器装备等领域。为了进一步提高酚醛树脂的耐热性,分别采用两种方法制备含硼硅酚醛树脂,研究发现,分两步将硼元素和硅元素分别以B—O—C结构和Si—O—B耐高温结构引入酚醛树脂中,制备的含硼硅酚醛树脂耐热性和力学性能均得到改善。通过研究发现,相比于未改性酚醛树脂,含硼硅酚醛的耐热性、层间剪切强度和弯曲强度均提高,当使用甲基三乙氧基硅烷制备含硼硅酚醛树脂时,其固化物在T_(5%)、T_(10%)、T_(max)和R_(800℃)分别为416.13℃、543.62℃、567.11℃和75.99%,分别提高了95.7℃、104.5℃、29.3℃和17.94%。制备的玻璃纤维增强含硼硅酚醛树脂复合材料的层间剪切强度从16.8 MPa增加至28.6 MPa,弯曲强度从132.5 MPa提高至261.9 MPa。 展开更多
关键词 酚醛树脂 硼硅改性 耐热性 力学性能
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常温与低温处理下小麦发芽特性及幼苗性状的比较 被引量:1
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作者 贠金 李秀丽 +3 位作者 许如根 郭宝健 朱娟 吕超 《大麦与谷类科学》 2022年第2期1-6,共6页
为了解小麦种质资源耐低温的差异性及鉴定小麦耐低温的发芽特性,本文以来源不同的300份小麦种质资源为材料,利用常温和低温发芽方法,测定不同条件下小麦的发芽特性和幼苗性状,分析参试品种发芽特性和幼苗性状的差异性及各性状之间的相... 为了解小麦种质资源耐低温的差异性及鉴定小麦耐低温的发芽特性,本文以来源不同的300份小麦种质资源为材料,利用常温和低温发芽方法,测定不同条件下小麦的发芽特性和幼苗性状,分析参试品种发芽特性和幼苗性状的差异性及各性状之间的相关性。结果表明:在常温和低温条件下,小麦种子发芽特性和幼苗性状在参试品种间均存在显著差异(P<0.01),发芽指数、活力指数、发芽势3个发芽特性及3个幼苗性状均值以常温发芽条件的较高,各性状在品种间的变异系数均以低温发芽条件较大。小麦发芽特性间、幼苗性状间及发芽特性与幼苗性状间的相关性均达到显著水平(P<0.01),小麦常温发芽特性与幼苗性状的相关系数均显著小于低温发芽。按照发芽率对小麦进行耐冷性评价,选出122份耐低温发芽的小麦种质,为优异耐迟播小麦种质的发掘与育种利用奠定基础。 展开更多
关键词 小麦 耐低温 种质 发芽
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Pancreatogastrostomy vs pancreatojejunostomy after pancreaticoduodenectomy: An updated meta-analysis of RCTs and our experience 被引量:7
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作者 yun jin Yang-Yang Feng +4 位作者 Xiao-Gang Qi Geng Hao Yuan-Quan Yu Jiang-Tao Li Shu-You Peng 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2019年第7期322-332,共11页
BACKGROUND Pancreatoduodenectomy(PD)is one of the most important operations in hepatobiliary and pancreatic surgery.AIM To evaluate the advantages and disadvantages of pancreaticojejunostomy(PJ)and pancreaticogastrost... BACKGROUND Pancreatoduodenectomy(PD)is one of the most important operations in hepatobiliary and pancreatic surgery.AIM To evaluate the advantages and disadvantages of pancreaticojejunostomy(PJ)and pancreaticogastrostomy(PG).METHODS This meta-analysis was performed using Review Manager 5.3.All clinical randomized controlled trials,in which patients underwent PD with pancreaticodigestive tract reconstruction via PJ or PG,were included.RESULTS The search of PubMed,Wanfang Data,EMBASE,and the Cochrane Library provided 125 citations.After further analysis,11 trials were included from nine counties.In all,909 patients underwent PG and 856 underwent PJ.Meta-analysis showed that pancreatic fistula(PF)was a significantly lower morbidity in the PG group than in the PJ group(odds ratio[OR]=0.67,95%confidence interval[CI]:0.53-0.86,P=0.002);however,grades B and C PF was not significantly different between the two groups(OR=0.61,95%CI:0.34-1.09,P=0.09).Postoperative hemorrhage showed a significantly lower morbidity in the PJ group than in the PG group(OR=1.47,95%CI:1.05-2.06,P=0.03).Delayed gastric emptying was not significantly different between the two groups(OR=1.09,95%CI:0.83-1.41,P=0.54).CONCLUSION There is no difference in the incidence of grades B and C PF between the two groups.However,postoperative bleeding is significantly higher in PG than in PJ.Binding PJ or binding PG is a safe and secure technique according to our decades of experience. 展开更多
关键词 PANCREATICOJEJUNOSTOMY PANCREATICOGASTROSTOMY Systematic review Metaanalysis
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Anatomic isolated caudate lobectomy: Is it possible to establish a standard surgical flow? 被引量:6
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作者 yun jin Liang Wang +5 位作者 Yuan-Quan Yu Dong-Er Zhou Da-Ren Liu Jun-Jie Yang Shu-You Peng Jiang-Tao Li 《World Journal of Gastroenterology》 SCIE CAS 2017年第41期7433-7439,共7页
AIM To establish the surgical flow for anatomic isolated caudate lobe resection. METHODS The study was approved by the ethics committee of the Second Affiliated Hospital Zhejiang University School of Medicine(SAHZU). ... AIM To establish the surgical flow for anatomic isolated caudate lobe resection. METHODS The study was approved by the ethics committee of the Second Affiliated Hospital Zhejiang University School of Medicine(SAHZU). From April 2004 to July 2014, 20 patients were enrolled who underwent anatomic isolated caudate lobectomy at SAHZU. Clinical and postoperative pathological data were analyzed. RESULTS Of the total 20 cases, 4 received isolated complete caudate lobectomy(20%) and 16 received isolated partial caudate lobectomy(80%). There were 4 caseswith the left approach(4/20, 20%), 6 cases with the right approach(6/20, 30%), 7 cases with the bilateral combined approach(7/20, 35%), 3 cases with the anterior approach(3/20, 15%), and the hanging maneuver was also combined in 2 cases. The median tumor size was 5.5 cm(2-12 cm). The median intraoperative blood loss was 600 m L(200-5700 m L). The median intra-operative blood transfusion volume was 250 m L(0-2400 m L). The median operation time was 255 min(110-510 min). The median post-operative hospital stay was 14 d(7-30 d). The 1-and 3-year survival rates for malignant tumor were 88.9% and 49.4%, respectively. CONCLUSION Caudate lobectomy was a challenging procedure. It was demonstrated that anatomic isolated caudate lobectomy can be done safely and effectively. 展开更多
关键词 Caudate lobectomy Surgical flow Anatomic liver resection
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Malignant solitary fibrous tumor of the pancreas with systemic metastasis: A case report and review of the literature 被引量:4
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作者 Hao Geng Yu Ye +4 位作者 yun jin Bai-Zhou Li Yuan-Quan Yu Yang-Yang Feng Jiang-Tao Li 《World Journal of Clinical Cases》 SCIE 2020年第2期343-352,共10页
BACKGROUND Pancreatic solitary fibrous tumor(SFT) is a rare neoplasm of intermediate biological potential. So far, only 22 cases have been reported since 1999. All the cases, except one, exhibited benign features. Her... BACKGROUND Pancreatic solitary fibrous tumor(SFT) is a rare neoplasm of intermediate biological potential. So far, only 22 cases have been reported since 1999. All the cases, except one, exhibited benign features. Here, we report the first case of malignant pancreatic SFT with typical Doege-Potter syndrome, along with the clinical and pathologic evidence of its systemic metastasis.CASE SUMMARY The patient was a 48-year-old man with a 1-year history of pancreatic and liver masses and refractory hypoglycemia. Increased uptake of the tracer fluorodeoxyglucose(FDG) was found in the liver and bones by fluorine-18 FDG positron emission tomography/computed tomography. After multidisciplinary discussion, a distal pancreatectomy procedure was performed, and histological examination showed a lesion composed of abundant heterogeneous spindle cells with localized necrosis. On immunohistochemistry evaluation, STAT6 was found to be diffusely expressed in the tumor. Based on the overall evidence, the patient was diagnosed with malignant pancreatic SFT with liver and bone metastases.CONCLUSION The diagnosis of malignant SFT requires comprehensive evidence including clinical, immunohistochemistry, and histological features. This case may be presented as a reference for diagnoses and management of malignant pancreatic SFTs with systemic metastasis. 展开更多
关键词 Solitary fibrous tumor PANCREAS MALIGNANT Doege-Potter syndrome Case report
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Solitary fibrous tumor of the liver:A case report and review of the literature 被引量:1
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作者 Guang-Yuan Xie Huan-Bing Zhu +3 位作者 yun jin Bai-Zhou Li Yuan-Quan Yu Jiang-Tao Li 《World Journal of Clinical Cases》 SCIE 2022年第20期7097-7104,共8页
BACKGROUND Hepatic solitary fibrous tumor(SFT)is a rare neoplasm.Up to now,only 90 cases have been reported in the English language literature.This report describes a case of SFT of the liver misdiagnosed as hepatocel... BACKGROUND Hepatic solitary fibrous tumor(SFT)is a rare neoplasm.Up to now,only 90 cases have been reported in the English language literature.This report describes a case of SFT of the liver misdiagnosed as hepatocellular carcinoma.CASE SUMMARY A 42-year-old male had a two-year history of a gradually enlarging intrahepatic nodule.The preoperative imaging revealed a mass with a size of 2.7 cm×2.3 cm located in the segment IV of the liver.The patient was subjected to the resection of the segment IV,such as the medial segment of the left lobe of the liver.The histological examination of the mass showed various spindled cells irregularly arranged in the stroma.The immunohistochemistry of this mass revealed a positive staining for CD34 and STAT6.The history of intracranial tumor and postoperative pathological results led to the diagnosis of SFT of the liver(SFTL)due to a metastasis from the brain.CONCLUSION SFTL is an uncommon mesenchymal neoplasm that can be easily overlooked or misdiagnosed.The best treatment choice is the complete surgical resection of the mass.A regular follow-up after the surgery should be performed due to the poor prognosis of metastatic or recurrent SFT. 展开更多
关键词 Solitary fibrous tumor LIVER Surgical treatment Mesenchymal neoplasm METASTASIS Case report
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Exosomal miRNA in early-stage hepatocellular carcinoma 被引量:1
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作者 Zhi-Qiang Wu Yi-Xin Zhu +1 位作者 yun jin Yin-Chu Zhan 《World Journal of Clinical Cases》 SCIE 2023年第3期528-533,共6页
The incidence and mortality of hepatic carcinoma(HCC)remain high,and early diagnosis of HCC is seen as a key approach in improving clinical outcomes.However,the sensitivity and specificity of current early screening m... The incidence and mortality of hepatic carcinoma(HCC)remain high,and early diagnosis of HCC is seen as a key approach in improving clinical outcomes.However,the sensitivity and specificity of current early screening methods for HCC are not satisfactory.In recent years,research around exosomal miRNA has gradually increased,and these molecules have emerged as attractive candidates for early diagnosis and treatment of HCC.This review summarizes the feasibility of using miRNAs in peripheral blood exosomes as early diagnostic tools for HCC. 展开更多
关键词 Hepatic carcinoma Early diagnosis Exosomal miRNA BIOMARKER
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张家口市清水河氨氮与总氮相关特征分析 被引量:2
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作者 宋凤芝 郝桂珍 +2 位作者 云晋 甄玉飞 徐利 《环境与发展》 2018年第7期114-114,116,共2页
为了解张家口市清水河流域的水质现状,在2017年4-11月期间对27个采样点进行监测,通过实验分析及数据处理展开对总氮与氨氮的相关特征研究。结果表明,在监测范围内氨氮与总氮呈现出正相关特征,且总氮与氨氮的比值较集中于5倍以上。整体... 为了解张家口市清水河流域的水质现状,在2017年4-11月期间对27个采样点进行监测,通过实验分析及数据处理展开对总氮与氨氮的相关特征研究。结果表明,在监测范围内氨氮与总氮呈现出正相关特征,且总氮与氨氮的比值较集中于5倍以上。整体比值分布表明,从劣Ⅴ类至Ⅰ类水体,总氮与氨氮的比值呈上升趋势,并且,在不同的监测时间及监测范围内,不同形态的氮化合物所占比重不同。 展开更多
关键词 特征分析 总氮 氨氮 比值
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Vascular endothelial growth factor protein and gene delivery by novel nanomaterials for promoting liver regeneration after partial hepatectomy
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作者 yun jin Ying-Hao Guo +4 位作者 Jia-Cheng Li Qi Li Dan Ye Xiao-Xiao Zhang Jiang-Tao Li 《World Journal of Gastroenterology》 SCIE CAS 2023年第24期3748-3757,共10页
Partial hepatectomy(PH)can lead to severe complications,including liver failure,due to the low regenerative capacity of the remaining liver,especially after extensive hepatectomy.Liver sinusoidal endothelial cells(LSE... Partial hepatectomy(PH)can lead to severe complications,including liver failure,due to the low regenerative capacity of the remaining liver,especially after extensive hepatectomy.Liver sinusoidal endothelial cells(LSECs),whose proliferation occurs more slowly and later than hepatocytes after PH,compose the lining of the hepatic sinusoids,which are the smallest blood vessels in the liver.Vascular endothelial growth factor(VEGF),secreted by hepatocytes,promotes LSEC proliferation.Supplementation of exogenous VEGF after hepatectomy also increases the number of LSECs in the remaining liver,thus promoting the reestablishment of the hepatic sinusoids and accelerating liver regeneration.At present,some shortcomings exist in the methods of supplementing exogenous VEGF,such as a low drug concentration in the liver and the reaching of other organs.Moreover,VEGF should be administered multiple times and in large doses because of its short half-life.This review summarized the most recent findings on liver regeneration and new strategies for the localized delivery VEGF in the liver. 展开更多
关键词 Liver regeneration Vascular endothelial growth factor Nano materials Liver resection
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NICKEL(Ⅱ)ion-intercalated MXene membranes for enhanced H_(2)/CO_(2) separation 被引量:3
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作者 Yiyi Fan jinyong Li +6 位作者 Saidi Wang Xiuxia Meng yun jin Naitao Yang Bo Meng Jiaquan Li Shaomin Liu 《Frontiers of Chemical Science and Engineering》 SCIE EI CAS CSCD 2021年第4期882-891,共10页
Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy.A membrane-assisted separation is promising in producing high-purity H_(2).Molecular sieving membranes(MSMs)are ... Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy.A membrane-assisted separation is promising in producing high-purity H_(2).Molecular sieving membranes(MSMs)are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion,diffusion,and adsorption.In this work,MXene nanosheets intercalated with Ni^(2+) were assembled to form an MSM supported on Al_(2)O_(3) hollow fiber via a vacuum-assisted filtration and drying process.The prepared membranes showed excellent H_(2)/CO_(2) mixture separation performance at room temperature.Separation factor reached 615 with a hydrogen permeance of 8.35×10^(-8) mol·m^(-2)·s^(-1) ·Pa^(-1).Compared with the original Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes,the permeation of hydrogen through the Ni^(2+)-Ti_(3)C_(2)T_(x)/Al_(2)O_(3) membrane was considerably increased,stemming from the strong interaction between the negatively charged MXene nanosheets and Ni^(2+).The interlayer spacing of MSMs was tuned by Ni^(2+).During 200-hour testing,the resultant membrane maintained an excellent gas separation without any substantial performance decline.Our results indicate that the Ni2+tailored Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes can inspire promising industrial applications. 展开更多
关键词 MXene H_(2)/CO_(2)separation nickel ions hollow fiber
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Host-Induced Gene Silencing of the Target Gene in Fungal Cells Confers Effective Resistance to the Cotton Wilt Disease Pathogen Verticillium dahliae 被引量:35
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作者 Tao Zhang yun jin +4 位作者 Jian-Hua Zhao Feng Gao Bang-Jun Zhou Yuan-Yuan Fang Hui-Shan Guo 《Molecular Plant》 SCIE CAS CSCD 2016年第6期939-942,共4页
Dear Editor Verticillium wilt, caused by the soil-borne fungus Verticillium dahliae, poses a major threat to a broad host range of more than 400 plant species, including economically important cotton (Bell, 1992). V... Dear Editor Verticillium wilt, caused by the soil-borne fungus Verticillium dahliae, poses a major threat to a broad host range of more than 400 plant species, including economically important cotton (Bell, 1992). V. dahliae is especially difficult to control because it persists in soil as resting structures, called microsclerotia, for several years in the absence of a host plant. The dormant microsclerotia are the primary infectious propagules and germinate when they are stimulated by root exudates. Infection of cotton roots by V. dahliae in soi~ naturally leads to the colonization of vascular tissues, from the parasitic to saprophytic phase, when mycelia and melanized dormancy microsclerotia are produced in the infected cotton, resulting in vessel blockage and cotton wilt disease (Gerik and Huisman, 1988). 展开更多
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Colonization process of Arabidopsis thaliana roots by a green fluorescent protein-tagged isolate of Verticillium dahliae 被引量:17
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作者 Pan Zhao yun-Long Zhao +2 位作者 yun jin Tao Zhang Hui-Shan Guo 《Protein & Cell》 SCIE CAS CSCD 2014年第2期94-98,共5页
Dear Editor, Verticillium wilt, caused by the soil-borne fungus Verticillium dahlia Klep., poses a major threat to a broad host range of more than 400 plant species, including economically impor- tant cotton, and caus... Dear Editor, Verticillium wilt, caused by the soil-borne fungus Verticillium dahlia Klep., poses a major threat to a broad host range of more than 400 plant species, including economically impor- tant cotton, and causes serious loss of lint yield in China, the USA and may other countries (Bell, 1992; Bejorano-Alcazar et al., 1995; Zhang et al., 2012). The colonization of cotton roots by V. dahliae in soil naturally leads to the colonization of vascular tissues in cotton (Garber and Houston, 1966; Gerik and Huisman, 1988). Recently, the development of confocal laser scanning microscopy (CLSM) has significantly increased our knowledge of the colonization process of V. dahliae on various plant roots (Eynck et al., 2007; Vallad and Subbarao, 2008; Prieto et al., 2009; Zhang et al., 2012). However, the comprehensive observation of the cotton living root colonization process by V. dahliae under CLSM is not likely to be practicable due to the large size of cotton roots. 展开更多
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Status of transjugular intrahepatic portosystemic shunt for portal hypertension in China:A national survey analysis 被引量:3
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作者 Haibo Shao Xinwei Han +31 位作者 Jianbo Zhao Junhui Sun Zhuting Fang Bin Xiong Xiaoli Zhu Weixin Ren Min Yuan Shiping Yu Meng Niu Weifu Lv Xueqiang Zhang Chunqing Zhang Lei Li Xuefeng Luo Yusheng Song Yilong Ma Tong Dang Hua Xiang yun jin Hui Xue Guiyun jin Xiao Li Jiarui Li Shi Zhou Changlu Yu Song He Lei Yu Hongmei Zu Jun Ma Yanming Lei Ke Xu Xiaolong Qi 《Portal Hypertension & Cirrhosis》 2023年第1期9-15,共7页
Aim:The transjugular intrahepatic portosystemic shunt(TIPS)procedure has been performed in China for 30 years,but our understanding of the status and difficulties associated with the use of TIPS for portal hypertensio... Aim:The transjugular intrahepatic portosystemic shunt(TIPS)procedure has been performed in China for 30 years,but our understanding of the status and difficulties associated with the use of TIPS for portal hypertension is incomplete.This study aims to investigate the current situation of the use of TIPS for portal hypertension,which should aid the development of TIPS in China.Methods:This study involved a questionnaire survey,initiated by the China Portal Hypertension Alliance(CHESS)to investigate the use of TIPS for portal hypertension in China.Questionnaires were released on the Internet between August 16,2022 and September 16,2022.Detailed information was collected from 545 hospitals contracted by the CHESS in China,which performed TIPS surgery in 2021.Results:The 545 hospitals covers the majority of hospitals in China that conduct TIPS intervention.In the survey,a total of 13,527 TIPS interventions were carried out with 94.1%(498/545)of them had a system of routine follow‐up after TIPS.The majority(42.6%[232/545])believed that the main indication of TIPS was the control of acute bleeding.Overall,48.1%(262/545)carried out early or pre‐emptive TIPS,53.0%(289/545)carried out TIPS for cavernous transformation of the portal vein,and 81.0%(441/545)chose routine embolization of collateral circulation during operation.Most used coils(97.0%[475/490])and biological glue(72.0%[353/490])as embolic materials,and 78.5%(428/545)routinely performed intraoperative portal pressure gradient measurements.When selecting TIPS stents,57.1%(311/545)chose viator‐specific stents,and 57.2%(312/545)chose conventional anticoagulation after TIPS.Conventional anticoagulation after TIPS is over a time interval of 3–6 months(55.4%[173/312]).The limitation of TIPS surgery is mainly its cost(72.3%[394/545])and insufficient understanding of the procedure by doctors in other related departments(77.4%[422/545]).Most of the hospital teams accept the use of domestic instruments in TIPS surgery(92.7%[505/545]).Conclusions:This survey shows that TIPS is an essential part of the treatment of portal hypertension in China.TIPS is widely used in Chinese patients with portal hypertension,and this survey presents a more comprehensive picture of the options and difficulties encountered in the implementation of TIPS.In the future,it is necessary to promote TIPS technology and further standardize surgical indications,routine operations,and instrument application. 展开更多
关键词 application status portal hypertension questionnaire survey TIPS
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