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Evaluation of sensory function and recovery after replantation of fingertips at ZoneⅠin children

Neural Regeneration Research 2017年第11期12卷 1911-1917页

作者： Zhao-wei Zhu Xiao-yan Zou yong-jun huang Jiang-hui Liu Xi-jun huang Bo He Zeng-tao Wang Department of Plastic Surgery the First Affiliated Hospital of Sun Yat-sen University Guangzhou Guangdong ProvinceChina Department of Orthopedics and Microsurgery the First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Department of Neurology the First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Department of Orthopedics Guangdong Second Provincial General HospitalGuangzhouGuangdong ProvinceChina Department of Emergency the First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Department of Hand and Foot Surgery Provincial Hospital Affiliated to Shandong UniversitylinanShandong ProvinceChina

Sensory function is the most significant criterion when evaluating the prognosis of replanted fingers. Current clinical research has focused on surgical techniques and indications for finger replantation; however, few studies have focused on recovery of finger sensory function af- ter replantation. This study retrospectively assessed data of eight patients who had undergone nine Zone I replantations of the fingertips in the First Affiliated Hospital of Sun Yat-sen University of China from July 2014 to January 2016. Variations in the extent of damage, with the residual vessels or nerves in some fingers being too short or even missing, prevented tension-free suture repair in some patients. Thus, re- pair of four of the nine fingertips included arteriovenous anastomosis, the remaining five undergoing arterial anastomosis during replanta- tion of the amputated fingers. Three patients underwent nerve repair, whereas the remaining six cases did not. Fingertip replantations were successful in all eight patients. Compared with the patients without vascular anastomosis, no obvious atrophy was visible in the fingertips of patients who did undergo vascular anastomosis during replantation and their sensory function did recover. Fingertip replantation pro- vides good sensory function and cosmetic outcomes when good artery and vein anastomoses have been created, even when digital nerves have not been repaired.

关键词： nerve regeneration fingertip replantation neurological function microsurgery hand surgery anatomy plastic surgery blood vessels neural regeneration

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Study on Lewis acid promoted condensation of allylalkoxysilanes with (-)-menthyl glyoxylate

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Chinese Journal of Chemistry 1994年第5期12卷 440-448页

作者： CHEN, yong-jun huang, Liang WANG, Dong LI, Ji-Sheng Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China Institute of Chemistry Chinese Academy of Science Beijing 100080 China

Allylalkoxydimethylsilanes (2) condense with (-)-menthyl glyoxylate (3) in the presence of Lewis acid to give optically active menthyl 2-hydroxy-4-pentenoate (7) with optical purity of 31-42%. Factors affecting the yi... 详细信息

关键词： Chiral glyoxylate allylalkoxysilane Lewis acid chelation asymmetric reaction.

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Ce改性对CuZnAl催化剂催化合成气制低碳醇的影响

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天然气化工—C1化学与化工 2017年第5期42卷 34-39页

作者：邓旋刘勇军黄伟太原理工大学信息化管理与建设中心山西太原030024 太原理工大学煤科学与技术教育部和山西省重点实验室山西太原030024

采用完全液相法制备了一系列Ce改性的CuZnAl催化剂,利用粉末X射线衍射(XRD)、H_2程序升温还原(H_2-TPR)、氨气吸附-脱附(NH_3-TPD-MS)和N_2物理吸附-脱附法等技术对其进行表征,并在浆态床反应器上考察了其在合成气制低碳醇反应中的性能... 详细信息

采用完全液相法制备了一系列Ce改性的CuZnAl催化剂,利用粉末X射线衍射(XRD)、H_2程序升温还原(H_2-TPR)、氨气吸附-脱附(NH_3-TPD-MS)和N_2物理吸附-脱附法等技术对其进行表征,并在浆态床反应器上考察了其在合成气制低碳醇反应中的性能。结果显示:Ce的加入有助于Cu物种的分散,减小催化剂中Cu^0颗粒大小,同时也会改变Cu、Zn和Al物种之间的作用关系、减小催化剂表面的弱酸量及增加催化剂的比表面积;CuZnAl催化剂加入Ce有助于抑制水煤气变换反应,减少CO_2的生成,但同时会降低高级醇(C_(2+)OH)的选择性。

关键词： CuZnAl Ce助剂合成气低碳醇完全液相法

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Predictive value of a constructed artificial neural network model for microvascular invasion in hepatocellular carcinoma:A retrospective study

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 88-100页

作者： Hai-Yang Nong yong-Yi Cen Shan-Jin Lu Rui-Sui huang Qiong Chen Li-Feng huang Jian-Ning huang Xue Wei Man-Rong Liu Lin Li Ke Ding Department of Radiology The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Radiology Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Guangxi Clinical Medical Research Center for Hepatobiliary Diseases Affiliated Hospital of Youiiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Ultrasound The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Hepatobiliary Surgery The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina

BACKGROUND Microvascular invasion(MVI)is a significant risk factor for recurrence and metastasis following hepatocellular carcinoma(HCC)***,there is a paucity of preoperative evaluation approaches for *** To investigate the predictive value of texture features and radiological signs based on multiparametric magnetic resonance imaging in the non-invasive preoperative prediction of MVI in *** Clinical data from 97 HCC patients were retrospectively collected from January 2019 to July 2022 at our *** were classified into two groups:MVI-positive(n=57)and MVI-negative(n=40),based on postoperative pathological *** correlation between relevant radiological signs and MVI status was ***4.6 software and the mutual information method were employed to identify the top 10 dominant texture features,which were combined with radiological signs to construct artificial neural network(ANN)models for MVI *** predictive performance of the ANN models was evaluated using area under the curve,sensitivity,and *** models with relatively high predictive performance were screened using the DeLong test,and the regression model of multilayer feedforward ANN with backpropagation and error backpropagation learning method was used to evaluate the models’*** The absence of a pseudocapsule,an incomplete pseudocapsule,and the presence of tumor blood vessels were identified as independent predictors of HCC *** ANN model constructed using the dominant features of the combined group(pseudocapsule status+tumor blood vessels+arterial phase+venous phase)demonstrated the best predictive performance for MVI status and was found to be automated,highly operable,and very *** The ANN model constructed using the dominant features of the combined group can be recommended as a noninvasive method for preoperative prediction of HCC MVI status.

关键词： Hepatocellular carcinoma Texture analysis Magnetic resonance imaging Microvascular invasion Pseudocapsule Tumor blood vessels

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玉树通天河流域赛康岩画调查与研究

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青海民族大学学报（社会科学版） 2017年第3期43卷 17-25页

作者：王永军黄亚琪中央民族大学北京海淀100081 三峡大学湖北宜昌443002

青海玉树通天河流域赛康岩画点是近年来新发现的岩画点,是玉树岩画的重要组成部分。通过实地考察笔者发现,赛康岩画的题材内容以鹿图像为主兼具牦牛图像,继而通过对鹿图像和牦牛图像的风格解析,笔者认为赛康岩画的年代距今约2700-2500年... 详细信息

青海玉树通天河流域赛康岩画点是近年来新发现的岩画点,是玉树岩画的重要组成部分。通过实地考察笔者发现,赛康岩画的题材内容以鹿图像为主兼具牦牛图像,继而通过对鹿图像和牦牛图像的风格解析,笔者认为赛康岩画的年代距今约2700-2500年,即春秋中晚期至战国早期,其创作的族属应为活动在这一区域或者曾经经过这一区域的古羌人。

关键词：玉树岩画通天河流域赛康岩画

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De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第01期 174-180页

作者： Fan-Xiao Meng Xing-Yu Wang Ka Lu Ju-Song Yang Fu-Min Zhang Ai-jun Ma Bao Du yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

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茶叶中噻嗪酮残留量的GC-MS测定

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分析测试学报 2002年第2期21卷 78-80页

作者：李拥军黄志强戴华张莹湖南出入境检验检疫局技术中心湖南长沙410007

采用样品处理的微量化学法和固相萃取技术,建立了茶叶中噻嗪酮残留量的GC -MS测定方法 ;用丙酮 -正己烷 (体积比1∶1)萃取 ,活性碳和中性氧化铝小柱净化 ,净化液用GC -MS测定,外标法定量 ;方法回收率在88%～109 %之间,相对标准偏差为2 %... 详细信息

采用样品处理的微量化学法和固相萃取技术,建立了茶叶中噻嗪酮残留量的GC -MS测定方法 ;用丙酮 -正己烷 (体积比1∶1)萃取 ,活性碳和中性氧化铝小柱净化 ,净化液用GC -MS测定,外标法定量 ;方法回收率在88%～109 %之间,相对标准偏差为2 %～4 %,测定限为0.010×10-6(w);该法快速、灵敏、准确 ,各项技术指标均满足残留量检测的要求。

关键词：噻嗪酮残留量固相萃取茶叶杀虫剂农药气相色谱-质谱法 GC-MS 测定

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Prognostic model for esophagogastric variceal rebleeding after endoscopic treatment in liver cirrhosis: A Chinese multicenter study

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World Journal of Gastroenterology 2025年第2期31卷 85-101页

作者： jun-Yi Zhan Jie Chen Jin-Zhong Yu Fei-Peng Xu Fei-Fei Xing De-Xin Wang Ming-Yan Yang Feng Xing Jian Wang yong-Ping Mu Cell Biology Laboratory Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Institute of Liver Diseases Shanghai Academy of Chinese MedicineShanghai 201203China Clinical Key Laboratory of Traditional Chinese Medicine of Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Key Laboratory of Liver and Kidney Disease of the Ministry of Education Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Gastroenterology and Hepatology Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Institute of Liver Disease Fudan UniversityShanghai 200032China Evidence-Based Medicine Center Fudan UniversityShanghai 200032China Department of Gastrointestinal Endoscopy Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Hepatology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China

BACKGROUND Rebleeding after recovery from esophagogastric variceal bleeding(EGVB)is a severe complication that is associated with high rates of both incidence and *** its clinical importance,recognized prognostic models that can effectively predict esophagogastric variceal rebleeding in patients with liver cirrhosis are *** To construct and externally validate a reliable prognostic model for predicting the occurrence of esophagogastric variceal *** This study included 477 EGVB patients across 2 cohorts:The derivation cohort(n=322)and the validation cohort(n=155).The primary outcome was rebleeding events within 1 *** least absolute shrinkage and selection operator was applied for predictor selection,and multivariate Cox regression analysis was used to construct the prognostic *** validation was performed with bootstrap *** assessed the discrimination,calibration and accuracy of the model,and performed patient risk *** Six predictors,including albumin and aspartate aminotransferase concentrations,white blood cell count,and the presence of ascites,portal vein thrombosis,and bleeding signs,were selected for the rebleeding event prediction following endoscopic treatment(REPET)*** predicting rebleeding within 1 year,the REPET model ex-hibited a concordance index of 0.775 and a Brier score of 0.143 in the derivation cohort,alongside 0.862 and 0.127 in the validation ***,the REPET model revealed a significant difference in rebleeding rates(P<0.01)between low-risk patients and intermediate-to high-risk patients in both *** We constructed and validated a new prognostic model for variceal rebleeding with excellent predictive per-formance,which will improve the clinical management of rebleeding in EGVB patients.

关键词： Esophagogastric variceal bleeding Variceal rebleeding Liver cirrhosis Prognostic model Risk stratification Secondary prophylaxis

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血管紧张素Ⅱ1型受体自身抗体与动脉粥样硬化斑块局部炎症的关系

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中国动脉硬化杂志 2017年第2期25卷 134-139页

作者：孙艳香冯力袁勇陶军黄炫生张励庭中山大学附属中山医院心血管内科广东省中山市528400 中山大学附属第一医院高血压血管病科广东省广州市510080

目的观察血管紧张素Ⅱ1型受体自身抗体(AT1-AA)与动脉粥样硬化动物模型粥样斑块局部炎症之间的关系。方法收集高血压合并急性冠状动脉综合征患者AT1-AA阳性和阴性的血清并纯化。建立30只球囊拉伤所致高脂血症兔动脉粥样硬化模型,随机分... 详细信息

目的观察血管紧张素Ⅱ1型受体自身抗体(AT1-AA)与动脉粥样硬化动物模型粥样斑块局部炎症之间的关系。方法收集高血压合并急性冠状动脉综合征患者AT1-AA阳性和阴性的血清并纯化。建立30只球囊拉伤所致高脂血症兔动脉粥样硬化模型,随机分成6组:(1)对照组;(2)低浓度AT1-AA[20μg/(kg·d)]注射组(简称LA组);(3)高浓度AT1-AA[40μg/(kg·d)]注射组(简称HA组);(4)氯沙坦[20 mg/(kg·d)]灌胃+高浓度AT1-AA注射组(简称L+HA组);(5)辛伐他汀[4 mg/(kg·d)]灌胃+高浓度AT1-AA注射组(简称S+HA组);(6)7aa[1.5 mg/(kg·d)]灌胃+高浓度AT1-AA注射组(简称7aa+HA组),予以不同的处理。取兔腹主动脉进行HE染色,比较各组斑块所占管腔面积;同时用Western blot检测斑块局部MMP-2的表达。结果各组总胆固醇及低密度脂蛋白胆固醇水平在第4周后明显升高。除对照组外,其他各组在第8、10周血清AT1-AA水平均明显高于实验开始时。LA组、HA组斑块占管腔面积百分值分别为46.99%±13.06%、66.11%±19.67%,明显高于对照组(27.71%±7.46%)、L+HA组(34.27%±12.38%)、S+HA组(24.03%±8.56%)及7aa+HA组(28.54%±12.50%)(均P<0.05)。LA组、HA组MMP-2的表达均明显高于其他各组(均P<0.05)。结论 AT1-AA可明显促进高脂喂养兔受损动脉内膜处斑块形成,增强斑块局部炎症反应的发生及细胞增殖。

关键词：血管紧张素Ⅱ1型受体自身抗体动脉粥样硬化斑块基质金属蛋白酶2

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Hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect neurons from cardiac arrest-induced pyroptosis

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Neural Regeneration Research 2025年第4期20卷 1103-1123页

作者： Xiahong Tang Nan Zheng Qingming Lin Yan You Zheng Gong Yangping Zhuang Jiali Wu Yu Wang Hanlin huang jun Ke Feng Chen Shengli Clinical Medical College of Fujian Medical University Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Emergency Fujian Provincial HospitalFuzhouFujian ProvinceChina Fujian Provincial Key Laboratory of Emergency Medicine FuzhouFujian ProvinceChina The Second Department of Intensive Care Unit Fujian Provincial Hospital South BranchFuzhouFujian ProvinceChina

Cardiac arrest can lead to severe neurological impairment as a result of inflammation,mitochondrial dysfunction,and post-cardiopulmonary resuscitation neurological *** preconditioning has been shown to improve migration and survival of bone marrow–derived mesenchymal stem cells and reduce pyroptosis after cardiac arrest,but the specific mechanisms by which hypoxia-preconditioned bone marrow–derived mesenchymal stem cells protect against brain injury after cardiac arrest are *** this end,we established an in vitro co-culture model of bone marrow–derived mesenchymal stem cells and oxygen–glucose deprived primary neurons and found that hypoxic preconditioning enhanced the protective effect of bone marrow stromal stem cells against neuronal pyroptosis,possibly through inhibition of the MAPK and nuclear factor κB ***,we transplanted hypoxia-preconditioned bone marrow–derived mesenchymal stem cells into the lateral ventricle after the return of spontaneous circulation in an 8-minute cardiac arrest rat model induced by *** results showed that hypoxia-preconditioned bone marrow–derived mesenchymal stem cells significantly reduced cardiac arrest–induced neuronal pyroptosis,oxidative stress,and mitochondrial damage,whereas knockdown of the liver isoform of phosphofructokinase in bone marrow–derived mesenchymal stem cells inhibited these *** conclude,hypoxia-preconditioned bone marrow–derived mesenchymal stem cells offer a promising therapeutic approach for neuronal injury following cardiac arrest,and their beneficial effects are potentially associated with increased expression of the liver isoform of phosphofructokinase following hypoxic preconditioning.

关键词： bone marrow–derived mesenchymal stem cells cardiac arrest cardiac resuscitation hypoxic preconditioning liver isoform of phosphofructokinase mitochondria neuroinflammation oxidative stress pyroptosis reactive oxygen species

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