期刊文献+
共找到725篇文章
< 1 2 37 >
每页显示 20 50 100
“Hepatic hilum area priority,liver posterior first”:An optimized strategy in laparoscopic resection for type Ⅲ-Ⅳ hilar cholangiocarcinoma
1
作者 Xiao-Si Hu Yong Wang +6 位作者 Hong-Tao Pan Chao Zhu Shi-Lei Chen Shuai Zhou Hui-Chun Liu Qing Pang Hao Jin 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第7期2167-2174,共8页
BACKGROUND In recent years,pure laparoscopic radical surgery for Bismuth-Corlette type Ⅲ and Ⅳ hilar cholangiocarcinoma(HCCA)has been preliminarily explored and applied,but the surgical strategy and safety are still... BACKGROUND In recent years,pure laparoscopic radical surgery for Bismuth-Corlette type Ⅲ and Ⅳ hilar cholangiocarcinoma(HCCA)has been preliminarily explored and applied,but the surgical strategy and safety are still worthy of further improvement and attention.AIM To summarize and share the application experience of the emerging strategy of“hepatic hilum area dissection priority,liver posterior separation first”in pure laparoscopic radical resection for patients with HCCA of Bismuth-Corlette types Ⅲ and IV.METHODS The clinical data and surgical videos of 6 patients with HCCA of Bismuth-Corlette types Ⅲ and Ⅳ who underwent pure laparoscopic radical resection in our department from December 2021 to December 2023 were retrospectively analyzed.RESULTS Among the 6 patients,4 were males and 2 were females.The average age was 62.2±11.0 years,and the median body mass index was 20.7(19.2-24.1)kg/m^(2).The preoperative median total bilirubin was 57.7(16.0-155.7)μmol/L.One patient had Bismuth-Corlette type Ⅲa,4 patients had Bismuth-Corlette type Ⅲb,and 1 patient had Bismuth-Corlette type Ⅳ.All patients successfully underwent pure laparoscopic radical resection following the strategy of“hepatic hilum area dissection priority,liver posterior separation first”.The operation time was 358.3±85.0 minutes,and the intraoperative blood loss volume was 195.0±108.4 mL.None of the patients received blood transfusions during the perioperative period.The median length of stay was 8.3(7.0-10.0)days.Mild bile leakage occurred in 2 patients,and all patients were discharged without serious surgery-related complications.CONCLUSION The emerging strategy of“hepatic hilum area dissection priority,liver posterior separation first”is safe and feasible in pure laparoscopic radical surgery for patients with HCCA of Bismuth-Corlette types Ⅲ and Ⅳ.This strategy is helpful for promoting the modularization and process of pure laparoscopic radical surgery for complicated HCCA,shortens the learning curve,and is worthy of further clinical application. 展开更多
关键词 Hilar cholangiocarcinoma Bismuth-Corlette typesⅢand LAPAROSCOPY Radical resection Strategy
下载PDF
P92钢接头Ⅳ型开裂蠕变孔洞临界值的分析及应用
2
作者 杨超 石仁强 《焊接》 2024年第9期62-68,共7页
【目的】分析P92管道接头热影响区发生Ⅳ型开裂的蠕变孔洞临界值的影响因素,得到蠕变孔洞临界值计算方法,为评估接头开裂风险提供依据。【方法】收集服役后发生Ⅳ型开裂的P92接头,在未开裂处取样进行610℃下不同应力条件的高温持久蠕变... 【目的】分析P92管道接头热影响区发生Ⅳ型开裂的蠕变孔洞临界值的影响因素,得到蠕变孔洞临界值计算方法,为评估接头开裂风险提供依据。【方法】收集服役后发生Ⅳ型开裂的P92接头,在未开裂处取样进行610℃下不同应力条件的高温持久蠕变试验,然后使用光学显微镜、电子显微镜观察服役开裂接头和持久断裂接头热影响区的蠕变孔洞分布形貌,并借助图像分析软件测量蠕变孔洞的面积分数,同时使用硬度仪测试热影响区软化情况,最后综合测试结果分析细晶区软化程度和接头应力水平对蠕变孔洞临界值的影响,并拟合应力、显微硬度、孔洞临界值三者之间的函数关系。【结果】研究发现,P92钢接头细晶区相比于接头其它区域软化速度更快,但软化作用并非其发生Ⅳ型开裂的必要条件,当应力水平较高时,细晶区没有发生明显软化时就可以触发蠕变开裂;得到接头轴向应力水平、蠕变孔洞面积分数临界值和显微硬度的函数关系式。【结论】引起Ⅳ型开裂的蠕变孔洞面积分数临界值与相对应力水平(轴向应力与硬度的比值)有关,相对应力水平越高,蠕变孔洞临界值越小,接头安全性就越低;通过测量接头细晶热影响区的蠕变孔洞面积分数和显微硬度,可以估算开裂接头的轴向应力水平,也可以评估在役未开裂接头的Ⅳ型开裂风险。 展开更多
关键词 超(超)临界机组 P92管道 型开裂 蠕变孔洞
下载PDF
Immunogenicity of Rcombinant Type 1 Pilus Oil-emulsified Vaccine of Avian Escherichia coli in Chickens
3
作者 GAN Li-ming JIANG Jia-jin +3 位作者 ZHANG Miao ZHANG Zhi-cheng CHEN Zhong-ming DAI Ding-zhen 《Animal Husbandry and Feed Science》 CAS 2012年第1期36-37,48,共3页
[ Objective] To prepare recombinant type 1 pilus vaccine of avian Escherichia coil and to detect its immunogenicity in chickens. [Meth- od] The type 1 pilus was respectively isolated from the recombinant bacteria CZYR... [ Objective] To prepare recombinant type 1 pilus vaccine of avian Escherichia coil and to detect its immunogenicity in chickens. [Meth- od] The type 1 pilus was respectively isolated from the recombinant bacteria CZYR10 strain and wild avian Eschedchia co/i YR( O18 ) strain and used to prepare oil-emulsified vaccine. The immunogenicity of the developed vaccine was detected in chickens using the challenge test. [ Result] The recombinant type 1 pilus protein had immunoprotective efficacy. The recombinant type 1 pilus protein had weaker protective efficacy than the isolated type 1 pilus protein, but the difference was not significant. [ Conclusion] The study provides a reference for immunization and control of chicken colibacillosis. 展开更多
关键词 Avian Escherichia coil Recombinant type 1 pilus IMMUNOGENICITY
下载PDF
肾组织石蜡切片Ⅳ型胶原α链免疫组织化学染色在诊断Alport综合征中的应用
4
作者 张能擘 赵杰 +4 位作者 王美芳 王慧萍 周芹 毕艳 陈江华 《现代医药卫生》 2024年第10期1660-1664,共5页
目的对Alport综合征(AS)患者肾脏穿刺组织进行石蜡切片Ⅳ型胶原α链免疫组织化学检测,探讨其临床应用价值。方法选取2018年11月至2022年7月浙江大学医学院附属第一医院肾脏病中心确诊的10例AS患者(AS病例组)、10例心脏死亡器官捐献者(D... 目的对Alport综合征(AS)患者肾脏穿刺组织进行石蜡切片Ⅳ型胶原α链免疫组织化学检测,探讨其临床应用价值。方法选取2018年11月至2022年7月浙江大学医学院附属第一医院肾脏病中心确诊的10例AS患者(AS病例组)、10例心脏死亡器官捐献者(DCD)供肾及10例确诊为免疫球蛋白A肾病患者(对照组)的肾组织进行石蜡切片Ⅳ型胶原α1、α3、α5链全自动免疫组织化学染色,将其与冰冻切片免疫荧光染色结果进行比较。将对照组肾组织石蜡切片分别采用多种方法进行抗原修复,比较修复效果。结果对照组肾组织2种染色方法Ⅳ型胶原α1、α3、α5链染色在肾小球基底膜(GBM)中均为连续线状阳性表达。AS病例组肾组织2种染色方法Ⅳ型胶原α1链染色在GBM均呈连续线状阳性表达,α3、α5链染色在GBM为阴性或节段弱阳性表达。2种染色方法染色结果具有较高的一致性(Kappa=0.615,P=0.035)。结论石蜡切片全自动免疫组织化学检测Ⅳ型胶原α1、α3和α5能较好地用于AS的诊断,为AS的诊断和研究提供了一种可靠的技术手段。 展开更多
关键词 ALPORT综合征 诊断 型胶原α链 免疫组织化学 间接荧光抗体技术
下载PDF
基于上皮细胞-间充质细胞转分化(EMT)理论的艾灸配合化纤Ⅳ号方对实验大鼠Collagen Type Ⅲ和PDGF干预作用实验研究 被引量:2
5
作者 李戎 彭彩钰 +2 位作者 赵荣光 刘涛 常全颖 《辽宁中医杂志》 CAS 北大核心 2016年第2期421-424,I0005,共5页
目的:基于上皮细胞-间充质细胞转分化(EMT)学说观察化纤Ⅳ号方、艾灸以及二者相配合治疗肺纤维化大鼠Collagen TypeⅢ(Ⅲ-C)和PDGF的变化,探讨其治疗效应及生物学机制。方法:将鼠龄约为6周的SD大鼠随机分为空白组、模型组、化纤Ⅳ号方... 目的:基于上皮细胞-间充质细胞转分化(EMT)学说观察化纤Ⅳ号方、艾灸以及二者相配合治疗肺纤维化大鼠Collagen TypeⅢ(Ⅲ-C)和PDGF的变化,探讨其治疗效应及生物学机制。方法:将鼠龄约为6周的SD大鼠随机分为空白组、模型组、化纤Ⅳ号方组、艾灸组、化纤Ⅳ号方与艾灸配合治疗组(简称为"灸药组"),治疗30 d后处死观察其肺组织病理改变,并检测其Collagen TypeⅢ、PDGF的基因和蛋白表达情况。结果:实时荧光定量结果显示:与空白组相比,各组Ⅲ-C和PDGF m RNA表达增高(P<0.05)。与模型组相比,各组的Ⅲ-C和PDGF m RNA表达有明显降低(P<0.01)。而各组中,灸药组疗效最明显,Ⅲ-C和PDGF的表达最低。蛋白免疫印迹法检测结果显示:与模型组相比各组的Ⅲ-C蛋白表达有差异。结论:1艾灸、化纤Ⅳ号方均可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度。2艾灸配合化纤Ⅳ号方可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度,且其效果优于单用艾灸或单用化纤Ⅳ号方。3艾灸、化纤Ⅳ号方及其二者配合使用不同程度阻抑博莱霉素诱导肺纤维化大鼠肺纤维化进程的效应机制,可能与通过调控其EMT过程中的Ⅲ-C和PDGF表达环节紧密相关。 展开更多
关键词 EMT 肺纤维化 艾灸 化纤号方 COLLAGEN type PDGF
下载PDF
Collagen type Ⅳ对周围神经中再生轴突及非神经元细胞的作用和影响 被引量:10
6
作者 秦建强 王国英 +1 位作者 胡耀民 钟世镇 《神经解剖学杂志》 CSCD 北大核心 1995年第3期195-202,共8页
本文用抗collagentypeⅣ对抗体阻断collagentyneⅣ的方法,研究了collagentypeⅣ失活的移植神经段(长10mm)植入大鼠坐骨神经后对再生轴突和非神经元细胞的作用和影响.实验结果显示:在移植... 本文用抗collagentypeⅣ对抗体阻断collagentyneⅣ的方法,研究了collagentypeⅣ失活的移植神经段(长10mm)植入大鼠坐骨神经后对再生轴突和非神经元细胞的作用和影响.实验结果显示:在移植神经段近端距近侧吻合口1mm处,术后10d抗collagentypeⅣ组再生轴突数为对照组的54%,术后15d增加到66%,术后30d高达94%.在移植神经段远侧距近侧吻合口9mm处,术后30d抗collagentypeⅣ组再生轴突数为对照组的58%。表明抗collagentypeⅣ组再生轴突的生长启动和生长速度明显慢于对照组.巨噬细胞在移植神经段内的滞留数量抗collagentypeⅣ组明显多于对照组.这些结果揭示collagentypeⅣ在神经损伤和再生中对促进轴突的生长和维持神经微环境的平衡起着积极的作用.本文对collagentypeⅣ在神经再生中的作用机制作了初步的分析和探讨。 展开更多
关键词 胶原蛋白 COLLAGEN type IV 神经再生 周围神经
下载PDF
Serum hyaluronic acid, procollagen type Ⅲ and Ⅳ in histological diagnosis of liver fibrosis 被引量:11
7
作者 Shi-Bin Xie Ji-Lu Yao +2 位作者 Rong-Qin Zheng Xiao-Mou Peng Zhi-Liang Gao the Department of Infectious Diseases, Third Affiliated Hospital, Zhongshan University, Guangzhou 510630, China , 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2003年第1期69-72,共4页
OBJECTIVE: To assess the significance of serum hyaluronic acid (HA), proeollagen type Ⅲ (PCⅢ), collagen type Ⅳ (CⅣ) in the histological diagnosis of liver fibrosis. METHODS: The concentrations of serum HA, PCⅢ, C... OBJECTIVE: To assess the significance of serum hyaluronic acid (HA), proeollagen type Ⅲ (PCⅢ), collagen type Ⅳ (CⅣ) in the histological diagnosis of liver fibrosis. METHODS: The concentrations of serum HA, PCⅢ, CⅣ in 253 patients with chronic liver diseases were measured by radioimmunoassay. Liver biopsies were performed in all patients at the same time. The liver was pathologically evaluated by a pathologist according to a scoring system. Combined with the results of liver pathological diagnosis, the accuracy of serum HA, PCⅢ, CⅣ in diagnosing patients with hepatic fibrosis (staging≥S_2) or cirrhosis (S_4) was assessed using the receiver operating curve (ROC). RESULTS: The cutoff values of serum HA, PCⅢ and CⅣ for identifying patients with hepatic fibrosis (≥S_2) or cirrhosis (S_4) were determined. The cutoff values of serum HA, PCⅢ and CⅣ for detecting patients with fibrosis (stage≥S_2) were 90μg/L, 90μg/L, 75μg/L, respectively; their sensitivity (Se) was 80.4%, 82%, 63.1%; their specificity (Spe) was 70.2%, 60.8%, 83.8%; their positive predictive values (PPV) were 86.7%, 83.5%, 90.4%; their negative predictive values (NPV) were 59.8%, 58.4%, 48.4%, respectively. The cutoff values for detecting patients with liver cirrhosis were 210μg/L for HA, 96.2% for Se, 85.3% for Spe, 65.4% for PPV, 98.8% for NPV; 150μg/L for PCⅢ, 76.4% for Se, 68.7% for Spe, 40.4% for PPV, 91.3% for NPV; 90μg/L for CⅣ, 80% for Se, 75.8% for Spe, 47.8% for PPV, 93.2% for NPV, respectively. CONCLUSIONS: Serum HA, PCⅢ and CⅣ can be determined for an accurate diagnosis of hepatic fibrosis in various stages. HA is the best for screening liver cirrhosis. 展开更多
关键词 hyaluronic acid procollagen type collagen type hepatic fibrosis DIAGNOSIS liver histology
下载PDF
Macroscopic appearance of TypeⅣand giant Type Ⅲ is a high risk for a poor prognosis in pathological stage Ⅱ/Ⅲ advanced gastric cancer with postoperative adjuvant chemotherapy 被引量:2
8
作者 Keishi Yamashita Akira Ema +4 位作者 Kei Hosoda Hiroaki Mieno Hiromitsu Moriya Natsuya Katada Masahiko Watanabe 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2017年第4期166-175,共10页
AIM To evaluate whether a high risk macroscopic appearance(Type Ⅳ and giant Type Ⅲ) is associated with a dismal prognosis after curative surgery, because its prognostic relevance remains elusive in pathological sta... AIM To evaluate whether a high risk macroscopic appearance(Type Ⅳ and giant Type Ⅲ) is associated with a dismal prognosis after curative surgery, because its prognostic relevance remains elusive in pathological stage Ⅱ/Ⅲ(p Stage Ⅱ/Ⅲ) gastric cancer.METHODS One hundred and seventy-two advanced gastric cancer(defined as pT2 or beyond) patients with p Stage Ⅱ/Ⅲ who underwent curative surgery plus adjuvant S1 chemotherapy were evaluated, and the prognostic relevance of a high-risk macroscopic appearance was examined. RESULTS Advanced gastric cancers with a high-risk macroscopic appearance were retrospectively identified by preoperative recorded images. A high-risk macroscopic appearance showed a significantly worse relapse free survival(RFS)(35.7%) and overall survival(OS)(34%) than an average risk appearance(P = 0.0003 and P < 0.0001, respectively). A high-risk macroscopic appearance was significantly associated with the 13^(th) Japanese Gastric Cancer Association(JGCA) pT(P = 0.01), but not with the 13^(th) JGCA pN. On univariate analysis for RFS and OS, prognostic factors included 13^(th) JGCA p Stage(P < 0.0001)and other clinicopathological factors including macroscopic appearance. A multivariate Cox proportional hazards model for univariate prognostic factors identified highrisk macroscopic appearance(P = 0.036, HR = 2.29 for RFS and P = 0.021, HR = 2.74 for OS) as an independent prognostic indicator. CONCLUSION A high-risk macroscopic appearance was associated with a poor prognosis, and it could be a prognostic factor independent of 13^(th) JGCA stage in p Stage Ⅱ/Ⅲ advanced gastric cancer. 展开更多
关键词 Macroscopic feature Gastric cancer type Giant type Stage Ⅱ/Ⅲ
下载PDF
Serum type Ⅳ collagen level is predictive for esophageal varices in patients with severe alcoholic disease 被引量:4
9
作者 Satoshi Mamori Yasuyuki Searashi +6 位作者 Masato Matsushima Kenichi Hashimoto Shinichiro Uetake Hiroshi Matsudaira Shuji Ito Hisato Nakajima Hisao Tajiri 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第13期2044-2048,共5页
AIM: To determine factors predictive for esophagea varices in severe alcoholic disease (SAD). METHODS: Abdominal ultrasonography (US) was performed on 444 patients suffering from alcoholism. Forty-four patients ... AIM: To determine factors predictive for esophagea varices in severe alcoholic disease (SAD). METHODS: Abdominal ultrasonography (US) was performed on 444 patients suffering from alcoholism. Forty-four patients found to have splenomegaly and/ or withering of the right liver lobe were defined as those with SAD. SAD patients were examined by upper gastrointestinal (UGI) endoscopy for the presence of esophageal varices. The existence of esophageal varices was then related to clinical variables. RESULTS: Twenty-five patients (56.8%) had esophageal varices. A univariate analysis revealed a significant difference in age and type Ⅳ collagen levels between patients with and without esophageal varices. A logistic regression analysis identified type Ⅳ collagen as the only independent variable predictive for esophageal varices (P = 0.017). The area under the curve (AUC) for type Ⅳ collagen as determined by the receiver operating characteristic (ROC) for predicting esophageal varices was 0.78. CONCLUSION: This study suggests that the level of type Ⅳ collagen has a high diagnostic accuracy for the detection of esophageal varices in SAD. 展开更多
关键词 type collagen Esophageal varice Alcoholic disease Abdominal ultrasonography ALCOHOLISM
下载PDF
Significance of regenerating islet-derived type Ⅳ gene expression in gastroenterological cancers 被引量:6
10
作者 Masakatsu Numata Takashi Oshima 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第27期3502-3510,共9页
The regenerating islet-derived members (Reg), a group of small secretory proteins, which are involved in cell proliferation or differentiation in digestive organs, are upregulated in several gastrointestinal cancers... The regenerating islet-derived members (Reg), a group of small secretory proteins, which are involved in cell proliferation or differentiation in digestive organs, are upregulated in several gastrointestinal cancers, functioning as trophic or antiapoptotic factors. Regenerat- ing islet-derived type Ⅳ (RegⅣ), a member of the Reg gene family, has been reported to be overexpressed in gastroenterological cancers. RegIV overexpression in tumor cells has been associated with carcinogen- esis, cell growth, survival and resistance to apoptosis. Cancer tissue expressing RegIV is generally associated with more malignant characteristics than that with- out such expression, and RegⅣ is considered a novel prognostic factor as well as diagnostic marker in some gastroenterological cancers. We previously investigated the expression levels of RegⅣ mRNA of 202 surgical colorectal cancer specimens with quantitative real-time reverse-transcriptase polymerase chain reaction and reported that a higher level of RegⅣ gene expression was a significant independent predictor of colorec- tal cancer. The biologic functions of RegⅣ protein in cancer tissue, associated with carcinogenesis, anti- apoptosis and invasiveness, are being elucidated by molecular investigations using transfection techniques or neutralizing antibodies of RegIV, and the feasibility of antibody therapy targeting RegIV is being assessed. These studies may lead to novel therapeutic strate- gies for gastroenterological cancers expressing RegⅣ. This review article summarizes the current information related to biological functions as well as clinical impor- tance of RegⅣ gene to clarify the significance of Reg~ expression in gastroenterological cancers. 展开更多
关键词 Regenerating islet-derived type protein Gastrointestinal neoplasms Prognosis Epidermal growthfactor receptor/protein kinase B
下载PDF
Genomic characteristics of Dickeya fangzhongdai isolates from pear and the function of type Ⅳ pili in the chromosome 被引量:1
11
作者 CHEN Bin TIAN Yan-li +4 位作者 ZHAO Yu-qiang WANG Yuan-jie CHUAN Jia-cheng LI Xiang HU Bai-shi 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2020年第4期906-920,共15页
Dickeya fangzhongdai, the causal agent of bleeding canker of pear, is a new member of the Dickeya genus and the only one that infects woody plants. Recent studies have reclassified several Dickeya isolates as D. fangz... Dickeya fangzhongdai, the causal agent of bleeding canker of pear, is a new member of the Dickeya genus and the only one that infects woody plants. Recent studies have reclassified several Dickeya isolates as D. fangzhongdai, which were isolated from various environments, including water, Phalaenopsis sp. and Aglaonema sp. To provide genomic characterization of D. fangzhongdai isolates from pear, the genomes of D. fangzhongdai strain JS5(=China General Microbiological Culture Collection Center, CGMCC 1.15464 ~T=DSM 101947 ~T), along with two other isolates, LN1 and QZH3, were sequenced and compared to those of other Dickeya spp. Homology greater than 99% was observed among three D. fangzhongdai strains. Plasmid, type IV secretion system(T4 SS) and type IV pili(TFPs) were found in genomes of D. fangzhongdai isolates. Comparative analysis of the type Ⅲ secretion systems(T3 SS), type Ⅲ secretion effectors(T3 SE), plant cell wall degradation enzymes(PCWDE) and membrane transport proteins of Dickeya spp. showed some differences which might reflect the variations of virulence, phylogenetic and phenotypic characteristics of Dickeya spp. In addition, deletion mutant of TFP in D. fangzhongdai JS5 showed no twitching motility and reduced virulence and biofilm formation. The fingdings of the distinctive plasmid, T4 SS and TFPs, as well as the differences of T3 SE, PCWDE and membrane transport proteins make D. fangzhongdai isolates unique. These results also suggested that acquisition of virulence genes by horizontal gene transfer might play some role in the genetic variation of D. fangzhongdai. 展开更多
关键词 Dickeya fangzhongdai comparative genomics VIRULENCE typepili
下载PDF
Pre-hepatectomy type Ⅳ collagen 7S predicts post-hepatectomy liver failure and recovery 被引量:4
12
作者 Masatsugu Ishii Osamu Itano +8 位作者 Masahiro Shinoda Minoru Kitago Yuta Abe Taizo Hibi Hiroshi Yagi Ayano Takeuchi Hanako Tsujikawa Tokiya Abe Yuko Kitagawa 《World Journal of Gastroenterology》 SCIE CAS 2020年第7期725-739,共15页
BACKGROUND Liver resection is an effective treatment for benign and malignant liver tumors.However,a method for preoperative evaluation of hepatic reserve has not yet been established.Previously reported assessments o... BACKGROUND Liver resection is an effective treatment for benign and malignant liver tumors.However,a method for preoperative evaluation of hepatic reserve has not yet been established.Previously reported assessments of preoperative hepatic reserve focused only on liver failure in the early postoperative period and did not consider the long-term recovery of hepatic reserve.When determining eligibility for hepatectomy,the underlying pathophysiology needs to be considered to determine if the functional hepatic reserve can withstand both surgery and any postoperative therapy.AIM To identify pre-hepatectomy factors associated with both early postoperative liver failure and long-term postoperative liver function recovery.METHODS This study was a retrospective cohort study.We retrospectively investigated 215 patients who underwent hepatectomy at our hospital between May 2013 and December 2016.Early post-hepatectomy liver failure(PHLF)was defined using the International Study Group of Liver Surgery’s definition of PHLF.Long-term postoperative recovery of liver function was defined as the time taken for serum total bilirubin and albumin levels to return to levels of<2 mg/dL and>2.8 g/dL,respectively,and the time taken for Child-Pugh score to return to Child-Pugh class A.RESULTS Preoperative type IV collagen 7S was identified as a significant independent factor associated with both PHLF and postoperative long-term recovery of liver function.Further analysis revealed that the time taken for the recovery of Child-Pugh scores and serum total bilirubin and albumin levels was significantly shorter in patients with type IV collagen 7S≤6 ng/mL than in those with type IV collagen 7S>6 ng/mL.In additional analyses,similar results were observed in patients without chronic viral hepatitis associated with fibrosis.CONCLUSION Preoperative type IV collagen 7S is a preoperative predictor of PHLF and longterm postoperative liver function recovery.It can also be used in patients without chronic hepatitis virus. 展开更多
关键词 HEPATECTOMY Liver failure type collagen 7S Liver fibrosis Postoperative complications Long-term postoperative liver function recovery
下载PDF
Subtotal gastrectomy combined with chemotherapy: An effective therapy for patients with circumscribed Borrmann type Ⅳ gastric cancer 被引量:2
13
作者 Hai-Bo Huang Zi-Ming Gao +2 位作者 An-Qi Sun Wei-Tian Liang Kai Li 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2020年第11期1325-1335,共11页
BACKGROUND Although Borrmann type Ⅳ(B-4) gastric cancer has a higher mortality rate and presents distant metastasis easily, especially peritoneal metastasis, when diagnosed, some B-4 patients were found to have no di... BACKGROUND Although Borrmann type Ⅳ(B-4) gastric cancer has a higher mortality rate and presents distant metastasis easily, especially peritoneal metastasis, when diagnosed, some B-4 patients were found to have no distant metastasis by preoperative detection and underwent curative surgery, which was defined as circumscribed B-4 in our study. In this study, we focused on the circumscribed B-4 patients without distant metastasis during surgery to identify factors related to prognosis and postoperative peritoneal cavity metastasis(PPCM), which is important for selecting an appropriate therapeutic strategy.AIM To identify factors related to the prognosis and PPCM of B-4 patients.METHODS A total of 117 B-4 patients who underwent gastrectomy between January 2005 and December 2012 were included in this study. Survival analysis was performed using Kaplan–Meier analysis and Cox multivariate models. Pearson correlation analyses were performed to identify the factors related to PPCM. All statistical analyses were performed using SPSS 20.0.RESULTS Lymph node status, gastrectomy type, and postoperative chemotherapy were independent prognostic factors in 117 circumscribed B-4 patients. Subtotal gastrectomy combined with chemotherapy could significantly improve the longterm survival time. Six patients who were diagnosed with pN0 and received the combination therapy had a 3-year survival rate of 100% and a median survival of 77.7 mo. Even for patients with metastatic lymph nodes(n = 13), the combination therapy also increased the 3-year overall survival rate to 57.1%. In addition, positive lymph node status was the only factor(P = 0.005) correlated with PPCM in certain B-4 patients, and chemotherapy was useful for suppressing PPCM in patients with subtotal gastrectomy but not in those with total gastrectomy.CONCLUSION Lymph node status is an independent prognostic factor for circumscribed B-4 patients. In addition, subtotal gastrectomy and postoperative chemotherapy could effectively improve prognosis and even suppress PPCM. 展开更多
关键词 Gastric cancer Circumscribed Borrmann type PROGNOSIS Subtotal gastrectomy CHEMOTHERAPY
下载PDF
Ⅳ类石英玻璃光学均匀性影响因素研究
14
作者 袁晶 宋学富 +3 位作者 孙元成 杜秀蓉 张晓强 钟利强 《硅酸盐通报》 CAS 北大核心 2023年第7期2621-2628,共8页
Ⅳ类石英玻璃是一种重要的特种玻璃材料,在光学探测、惯性导航等领域内具有重要作用。光学均匀性是表征光学玻璃结构均匀性的一种重要方法,Ⅳ类石英玻璃的光学均匀性与硅氧网络结构分布一致性密切相关。本文通过四步法光学均匀性测试、... Ⅳ类石英玻璃是一种重要的特种玻璃材料,在光学探测、惯性导航等领域内具有重要作用。光学均匀性是表征光学玻璃结构均匀性的一种重要方法,Ⅳ类石英玻璃的光学均匀性与硅氧网络结构分布一致性密切相关。本文通过四步法光学均匀性测试、紫外-可见-近红外光谱、红外反射光谱等方法,研究了羟基、金属杂质及氧缺陷的径向分布特点和硅氧键键角的径向变化,采用相关性分析研究了各影响因素对样品光学均匀性的影响。结果表明:表示玻璃光学均匀性的波前畸变t_(0)Δn沿玻璃半径先降低后升高;羟基的径向分布整体上与t_(0)Δn的径向变化相反,200 nm处透过率径向变化、硅氧键键角径向变化与t_(0)Δn的径向变化相近;羟基对Ⅳ类石英玻璃光学均匀性的影响较小,金属杂质、氧缺陷及硅氧键键角的径向变化是影响Ⅳ类石英玻璃光学均匀性的主要因素。 展开更多
关键词 类石英玻璃 光学均匀性 径向变化 相关性分析 羟基 氧缺陷 硅氧键键角
下载PDF
Hypertension, type Ⅳ cardiorenal syndrome and chronic kidney disease: Pathophysiological and therapeutical approach
15
作者 Luca Di Lullo Antonio Bellasi Antonio De Pascalis 《World Journal of Hypertension》 2017年第1期10-18,共9页
Hypertension represent one of the most important comorbid factors in chronic kidney disease(CKD) patients and its prevalence increases from 65% to 95% according to glomerular filtration rate decline. CKD patients need... Hypertension represent one of the most important comorbid factors in chronic kidney disease(CKD) patients and its prevalence increases from 65% to 95% according to glomerular filtration rate decline. CKD patients need to maintain their blood pressure levels into 130/80 mm Hg according to most recent guidelines. Despite of many therapeutic agents, achievement of ideal blood pressure levels remains so far from the ideal ones. Hypertensive disease represent most important risk factor to develop a type Ⅳ cardiorenal syndrome, while prevalence of end stage renal disease is still raising and it represents worldwide epidemiological challenge. Correct management of hypertensive disease can obtain better control on CKD progression. 展开更多
关键词 HYPERTENSION typecardiorenal syndrome RENIN-ANGIOTENSIN system inhibitors Calcium channel BLOCKERS Chronic KIDNEY disease
下载PDF
Conservative management of small bowel perforation in Ehlers-Danlos syndrome type Ⅳ
16
作者 Satya Allaparthi Himanshu Verma +1 位作者 David L Burns Ann M Joyce 《World Journal of Gastrointestinal Endoscopy》 CAS 2013年第8期398-401,共4页
Ehlers-Danlos syndrome (EDS) is a group of inherited connective tissue disorders caused by collagen synthesis defects. EDS type Ⅳ, or vascular EDS, is caused by loss-of-function mutations in the type Ⅲ pro-collagen ... Ehlers-Danlos syndrome (EDS) is a group of inherited connective tissue disorders caused by collagen synthesis defects. EDS type Ⅳ, or vascular EDS, is caused by loss-of-function mutations in the type Ⅲ pro-collagen gene (COL3A1 ). Common complications of EDS type IV include gastrointestinal bleeding and bowel perforations, posing diagnostic and therapeutic dilemmas for both surgeons and gastroenterologists. Here, we describe a complicated case of EDS type Ⅳ in a 35-year-old caucasian female who presented with overt gastro-intestinal bleeding. The patient had a prior history of spontaneous colonic perforation, and an uncomplicated upper endoscopy was performed. A careful ileoscopy was terminated early due to tachycardia and severe ab-dominal pain, and a subsequent computed tomography scan confirmed the diagnosis of ileal perforation. The patient was managed conservatively, and demonstrated daily improvement. At the time of hospital discharge, no further episodes of gastrointestinal blood loss had occurred. This case highlights the benefit of conservative management for EDS patients with gastrointestinal hemorrhage. It is recommended that surgical treatmentshould be reserved for patients who fail conservative treatment or in cases of hemodynamic instability. Finally, this case demonstrates the necessity for a higher threshold of operative or endoscopic interventions in EDS type Ⅳ patients. 展开更多
关键词 type- EHLERS-DANLOS syndrome Gastro-intestinal hemorrhage BOWEL PERFORATION Conservative management NON-OPERATIVE COL3A1 CONNECTIVE tissue disorder
下载PDF
Ⅲ型和Ⅳ型前列腺炎患者前列腺按摩液中锌离子浓度检测和临床价值 被引量:14
17
作者 莫林键 陈曦 +5 位作者 汪小明 李广裕 张迅 黄珊 谢智彬 莫曾南 《中华男科学杂志》 CAS CSCD 北大核心 2016年第6期496-500,共5页
目的:探讨前列腺按摩液(EPS)中锌离子浓度对Ⅲ型和Ⅳ型前列腺炎诊疗的意义和参考价值。方法:根据NIH前列腺炎分型标准,将入选的173例研究对象分为ⅢA型(n=65)、ⅢB型(n=69)、Ⅳ型(n=39)前列腺炎,并以35例门诊健康体检、无前列腺炎症状... 目的:探讨前列腺按摩液(EPS)中锌离子浓度对Ⅲ型和Ⅳ型前列腺炎诊疗的意义和参考价值。方法:根据NIH前列腺炎分型标准,将入选的173例研究对象分为ⅢA型(n=65)、ⅢB型(n=69)、Ⅳ型(n=39)前列腺炎,并以35例门诊健康体检、无前列腺炎症状者为对照组,检测4组EPS中锌离子浓度,并分析其与慢性前列腺炎症状评分(CPSI),年龄,EPS中白细胞计数、p H值等指标的相关性。结果:ⅢA型及ⅢB型前列腺炎患者EPS中锌离子浓度[(162.2±10.8)、(171.2±12.0)μg/ml]显著低于Ⅳ型及对照组[(234.6±17.9)、(259.5±14.6)μg/ml),P均<0.05]。EPS中锌离子浓度与疼痛评分、生活质量(QOL)评分、症状严重评分以及CPSI总评分均呈显著负相关(r分别为-0.284、-0.232、-0.270、-0.281,P均<0.01),与排尿症状评分无相关。EPS中锌离子浓度与白细胞计数、年龄无明确相关,与p H值呈负相关(r=-0.208,P<0.01)。结论:Ⅲ型和Ⅳ型前列腺炎患者EPS中锌离子浓度低下可能与疼痛等前列腺炎相关症状有关,EPS中锌离子浓度检测对Ⅲ型和Ⅳ型前列腺炎的诊疗具有潜在参考价值。 展开更多
关键词 锌离子 前列腺炎分型 Ⅲ型、 前列腺按摩液 疼痛症状 相关性
下载PDF
SEDIS Ⅳ型短周期自浮式海底地震仪及应用体会 被引量:19
18
作者 李湘云 吴振利 +2 位作者 薛彬 丁巍伟 阮爱国 《热带海洋学报》 CAS CSCD 北大核心 2007年第5期35-39,共5页
国家海洋局第二海洋研究所新引进15台SEDIS Ⅳ型短周期自浮式海底地震仪,并成功用于2006年南海中北部海底深部结构调查。详细描述了SEDIS Ⅳ型短周期自浮式海底地震仪的各项指标、主要仪器性能,以2006年南海中北部海底深部结构调查为基... 国家海洋局第二海洋研究所新引进15台SEDIS Ⅳ型短周期自浮式海底地震仪,并成功用于2006年南海中北部海底深部结构调查。详细描述了SEDIS Ⅳ型短周期自浮式海底地震仪的各项指标、主要仪器性能,以2006年南海中北部海底深部结构调查为基础,简要介绍了该型号地震仪的设置、投放、回收方法及数据处理技术,并总结了海上作业及数据处理中获得的一些经验体会。 展开更多
关键词 SEDIS 型海底地震仪 自浮式 短周期 地壳结构
下载PDF
抗Ⅳ型变态反应中药治疗湿疹的研究 被引量:32
19
作者 林熙然 涂彩霞 +2 位作者 杨春梅 高明阳 谷玲 《中国中西医结合杂志》 CAS CSCD 北大核心 2000年第4期258-260,共3页
在抗Ⅳ型变态反应中药实验研究的基础上,研究治疗湿疹的中药复方。方法:将具有抑制小鼠接触性皮炎作用的中药,按中医治疗湿疹的治则配成不同方剂。研究其对二硝基氟苯诱导小鼠皮炎耳厚度、重量、真皮炎症细胞数和血浆降钙素基因相关... 在抗Ⅳ型变态反应中药实验研究的基础上,研究治疗湿疹的中药复方。方法:将具有抑制小鼠接触性皮炎作用的中药,按中医治疗湿疹的治则配成不同方剂。研究其对二硝基氟苯诱导小鼠皮炎耳厚度、重量、真皮炎症细胞数和血浆降钙素基因相关肽(CGRP)的影响。以中医治疗湿疹的治则为指导,制成复方茯苓冲剂,用于治疗不包括异位性皮炎的湿疹63例,与59例用抗组织胺剂(作用于Ⅰ型变态反应)治疗者比较。结果:实验研究显示中药的4个方剂均有抗Ⅳ型变态反应的作用,其中以凉血清热祛风利湿方作用最强;同时该方还可上调血浆CGRP浓度。口服复方茯苓冲剂的治疗组临床治愈率47.6%,对照组临床治愈率22.0%,两组比较,有显著性差异(u=2.9555,P<0.01)。结论:中药有抗Ⅳ型变态反应的作用,复方茯苓冲剂治疗湿疹有较好的疗效。 展开更多
关键词 湿疹 型变态反应 中医药疗法
下载PDF
血清透明质酸、Ⅲ型前胶原、Ⅳ型胶原及层粘蛋白水平与实验性肝纤维化的关系 被引量:15
20
作者 王丽春 赵连三 +4 位作者 唐红 刘丽 刘聪 张红英 饶凡 《华西医学》 CAS 2005年第1期91-92,共2页
目的 :评价血清透明质酸 (HA)、Ⅲ型前胶原 (PCⅢ)、Ⅳ型胶原 (CⅣ)及层粘蛋白 (LN)水平与实验性肝纤维化的关系。方法 :采用半定量计分系统 (SSS)中炎症活动度及纤维化程度计分方案对温阳中药肝之福预防及治疗肝纤维化大鼠实验的病理... 目的 :评价血清透明质酸 (HA)、Ⅲ型前胶原 (PCⅢ)、Ⅳ型胶原 (CⅣ)及层粘蛋白 (LN)水平与实验性肝纤维化的关系。方法 :采用半定量计分系统 (SSS)中炎症活动度及纤维化程度计分方案对温阳中药肝之福预防及治疗肝纤维化大鼠实验的病理组织共 73份标本进行半定量计分 ,同时检测血清HA、PCⅢ、CⅣ及LN水平 ,进行Pearson相关性分析。结果 :四项血清肝纤维化指标不论与肝脏炎症活动度还是纤维化程度均呈正相关 (P <0 0 1)。结论 :血清HA、PCⅢ、CⅣ及LN水平可在一定程度上反映肝组织的炎症和纤维化程度 ,联合检测价值较高。 展开更多
关键词 透明质酸 Ⅲ型前胶原 型胶原 层粘蛋白 肝纤维化
下载PDF
上一页 1 2 37 下一页 到第
使用帮助 返回顶部