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腹腔镜下双离断-双吻合器技术联合直肠外翻体外切除术在低位直肠癌保肛治疗中的应用价值

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中华胃肠外科杂志 2024年第3期27卷 283-286页

作者：梁鸿吴凯强范青文郑伟张辉白军伟李俊蒙陈嘉琦张超河南省人民医院胃肠外科、郑州大学人民医院胃肠外科郑州450006 河南省人民医院影像科、郑州大学人民医院影像科郑州450006

目的探讨腹腔镜下双离断-双吻合器技术联合直肠外翻体外切除术(LDER)在低位直肠癌保肛治疗中的应用价值。方法LDER法适应证:(1)年龄18~70岁;(2)肿瘤下缘距离肛缘4~5 cm;(3)原发肿瘤直径≤3 cm;(4)cTNM分期T1~2N1~2M0;(5)“困难骨盆”(... 详细信息

目的探讨腹腔镜下双离断-双吻合器技术联合直肠外翻体外切除术(LDER)在低位直肠癌保肛治疗中的应用价值。方法LDER法适应证:(1)年龄18~70岁;(2)肿瘤下缘距离肛缘4~5 cm;(3)原发肿瘤直径≤3 cm;(4)cTNM分期T1~2N1~2M0;(5)“困难骨盆”(坐骨结节间径25 kg/m^(2));(6)患者保留肛门括约肌意愿强烈;(7)术前未接受放化疗或免疫及靶向治疗;(8)术前影像资料未发现侧方淋巴结肿大;(9)既往无肛肠手术史;(10)基础情况良好、可耐受手术的患者。禁忌证:(1)既往曾罹患消化道恶性肿瘤或现罹患非消化道恶性肿瘤;(2)术前肛门功能差(Wexner评分≥10分)、排便失禁者。其手术关键步骤如下:内外括约肌间游离直肠远端,腹腔镜下线型切割闭合器离断肿瘤之近端直肠,再将远端直肠经肛门翻转拖出,离断肿瘤之远端直肠,手工全层缝合加固残端,残端回纳入盆腔后,腹腔镜监视下采用双吻合器技术行结肠直肠端端吻合。本文采用描述性病例系列研究方法,回顾性分析2020年1月至2022年12月期间,河南省人民医院采用LDER治疗的12例T1~2期低位直肠癌患者的术中术后资料和随访数据,观察其疗效。结果12例患者均顺利完成LDER,均保留肛门,无中转开腹或手术方式变更。中位手术时间272(155~320)min,中位出血量100(50~200)ml,手术中肛门括约肌保留率100%,均未行预防性造口,所有患者均进行R0切除,术后中位住院时间为9(7~15)d,3例患者出现术后发热(Clavien-DindoⅠ级),无术后吻合口漏或围手术期死亡者。12例患者中位随访12(6~36)个月,术后6个月中位Wexner评分8(5~14)分,随访期间无肿瘤复发转移。结论腹腔镜下双离断-双吻合器技术联合直肠外翻体外切除术治疗低位直肠癌安全可行的。

关键词：直肠肿瘤腹腔镜手术消化道重建

Hierarchical yolk-shell structured Li-rich cathode boosting cycling and voltage stabled LIBs

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Nano Research 2022年第4期15卷 3178-3186页

作者： Yanchen Liu Yafen Chen Jing Wang Wei Wang Zhiyu Ding Leyuan Li Yang Zhang Yida Deng junweiwu Yanan Chen Shenzhen Key Laboratory of Advanced Materials Department of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin 300072China School of Materials Science and Engineering Hainan UniversityHaikou 570228China

Despite the high energy density of lithium-rich(Li-rich)cathodes,their implementation is hampered by the unsatisfied rate capacity and poor cycling performance accompanied with substantial voltage decay.To address these issues,the hierarchical yolk-shell structured Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_(2)cathodes(YK-LMNCO)was proposed and synthesized through a facile glycerol assisted solvothermal approach and the following lithiation process.Benefitting from the shortened lithium diffusion lengths and the enhanced tolerance to the large volume variation upon lithium ions intercalation/de-intercalation,the unique structure reciprocates an initial coulombic efficiency of 85.8%,an outstanding capacity retention rate of 89.1%after cycling at 2.0 C for 200 cycles with a minor voltage drop,and a capacity retention rate of 93.8%after cycling at 10.0 C for 500 cycles,85.2%for 1,000 cycles.When assembled with graphite as anode,the YK-LMNCO//graphite full cell shows a remarkable capacity retention rate of 87.2%after cycling at 5.0 C for 50 cycles.Our facile strategy for constructing the yolk-shell structured Li-rich cathodes with high capacity and voltage stability sheds light on synthesizing other lithium storage materials.

关键词： lithium-rich(Li-rich)layered oxides yolk-shell structure cathode cycling stability lithium-ion battery(LIBs)

3株蒜头果内生木霉的鉴定及其对幼苗的促生作用研究

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西北农林科技大学学报（自然科学版） 2024年第4期52卷 105-116页

作者：王俊威陈婉东王巧玲巫雨蓝王娟潘悦西南林业大学地理与生态旅游学院云南昆明650224 西南林业大学林学院云南昆明650224 西南林业大学绿色发展研究院云南昆明650224

【目的】鉴定3株蒜头果内生木霉,并探讨其对幼苗生长发育的影响,为蒜头果内生木霉资源的利用及优质苗木培育提供参考。【方法】采用分子系统学和形态学方法,鉴定3株分离自蒜头果茎部和根部的内生木霉。通过接种效应试验,测定根施3种木... 详细信息

【目的】鉴定3株蒜头果内生木霉,并探讨其对幼苗生长发育的影响,为蒜头果内生木霉资源的利用及优质苗木培育提供参考。【方法】采用分子系统学和形态学方法,鉴定3株分离自蒜头果茎部和根部的内生木霉。通过接种效应试验,测定根施3种木霉菌液和无菌水(对照)后,蒜头果幼苗的生长性状、生物量、叶绿素含量、抗氧化酶活性、可溶性糖和可溶性蛋白含量以及木霉的根系定殖率,并结合各项指标的隶属函数值对不同处理的蒜头果幼苗品质进行综合评价。【结果】通过构建木霉属菌种系统发育树以及对菌落形态和微观结构的观察,确定3株内生木霉分别为哈茨木霉(Trichoderma harzianum,SF15)、贵州木霉(T.guizhouense,SF548)和绒毛木霉(T.tomentosum,SF434)。接种菌株SF15和SF548的蒜头果幼苗株高增量、叶片增量显著高于对照,3种木霉处理的幼苗茎粗增量均显著高于对照。接种菌株SF15和SF548的蒜头果幼苗主根长和根部吸器数量显著高于对照,而最大吸器直径显著低于对照,且不同处理组的蒜头果幼苗主根长与根部吸器数量呈一定正相关,而与最大吸器直径呈一定负相关。接种菌株SF15和SF548的幼苗地下、地上、全株鲜质量及干质量均显著高于对照,接种菌株SF434的处理组全株鲜质量及地下和全株干质量显著高于对照。3个接菌组蒜头果幼苗叶片叶绿素含量,POD、SOD、CAT活性以及可溶性糖和可溶性蛋白含量均显著高于对照。接种菌株SF15和SF548的蒜头果幼苗根系定殖率分别为64.25%和61.78%,显著高于接种SF434的根系定殖率55.57%。基于各项测定指标的隶属函数值,不同处理组幼苗品质的综合排名为:接种SF15的处理>接种SF548的处理>接种SF434的处理>对照。【结论】3株蒜头果内生木霉对幼苗生长、生物量、叶绿素含量、抗氧化酶活性以及可溶性糖、可溶性蛋白含量的提高有积极促进作用,其中菌株SF15和SF548的促生效果较为显著,为蒜头果潜在的促生菌株。

关键词：蒜头果内生木霉鉴定促生作用

化学杀雄剂CH1诱导的小麦雄性不育花药转录组学及相关基因表达的分析

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麦类作物学报 2024年第3期44卷 289-298页

作者：吴倩郭皓昱席甜甜李煜杨建光马守才王军卫西北农林科技大学农学院陕西杨凌712100

为了揭示化学杀雄剂CH1诱导雄性不育的作用机理,以小麦品种普冰151为试验材料,利用测序技术对化杀不育系(FHS)和正常可育系(FZC,对照)的花药RNA进行转录组学分析,筛选差异表达基因,并进行GO、KEGG富集分析及实时荧光定量PCR分析。结果表... 详细信息

为了揭示化学杀雄剂CH1诱导雄性不育的作用机理,以小麦品种普冰151为试验材料,利用测序技术对化杀不育系(FHS)和正常可育系(FZC,对照)的花药RNA进行转录组学分析,筛选差异表达基因,并进行GO、KEGG富集分析及实时荧光定量PCR分析。结果表明,FHS和FZC之间筛选出差异表达基因共3 895个,其中上调表达基因1 334个,下调表达基因2 561个,主要富集在碳水化合物代谢、多糖代谢、外部结构组织、细胞壁组织等;经KEGG分析,差异基因主要集中在戊糖和葡萄糖醛酸转化、淀粉和蔗糖代谢利用等通路中。利用实时定量PCR技术对转录组数据中所筛选出的5个表达差异较大的基因进行验证,在花药发育的单核期,处理与对照相比,这5个基因表现出不同的上下调趋势;而在二核期和三核期,这5个基因都表现出明显的下调趋势,推测这5个基因的下调表达有可能与化杀不育系花粉的败育有关。

关键词：化学杀雄剂转录组分析 GO富集 KEGG富集荧光定量PCR

温针灸对膝骨关节炎兔损伤前交叉韧带修复及相关因子的影响

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中国组织工程研究 2024年第23期28卷 3621-3626页

作者：李春张艳玲刘娣王明磊王铎刘君伟武永利宁夏医科大学总医院宁夏回族自治区银川市750004 灵武市中医院宁夏回族自治区灵武市751600 宁夏少数民族医药现代化教育部重点实验室宁夏回族自治区银川市750004

背景:温针灸可有效治疗膝骨关节炎。前交叉韧带的退变、损伤、断裂可影响膝关节局部稳定性,进而诱发膝骨关节炎的形成,温针灸是否可修复损伤前交叉韧带及其作用机制,目前尚不清楚。目的:观察温针灸对膝骨关节炎兔前交叉韧带形态学及相... 详细信息

背景:温针灸可有效治疗膝骨关节炎。前交叉韧带的退变、损伤、断裂可影响膝关节局部稳定性,进而诱发膝骨关节炎的形成,温针灸是否可修复损伤前交叉韧带及其作用机制,目前尚不清楚。目的:观察温针灸对膝骨关节炎兔前交叉韧带形态学及相关生长因子类胰岛素样生长因子1、转化生长因子β表达的变化,明确温针灸修复前交叉韧带的作用机制。方法:将30只新西兰兔采用随机数字表法分为空白组、模型组、温针灸组3组,每组10只。模型组和温针灸组兔采用石膏管型固定法制备膝骨关节炎兔模型。造模成功后,模型组每日于兔固定架固定15 min;温针灸组选取“鹤顶”“内膝眼”“外膝眼”行温针灸治疗,每日1次,7日为1个疗程,共治疗2个疗程;空白组不予干预。治疗结束后MRI观察前交叉韧带影像学改变,并进行MRI分级统计;透射电镜、苏木精-伊红染色观察其形态学变化;RT-PCR、Western blot检测组织类胰岛素样生长因子1、转化生长因子βmRNA及蛋白的表达。结果与结论:①MRI检查:与空白组比较,模型组前交叉韧带增粗、水肿、部分撕裂,分级评估差异有统计学意义(P<0.05);与模型组比较,温针灸组韧带增粗略轻,轻度水肿,无撕裂,分级评估差异有统计学意义(P<0.05)。②大体观察:模型组前交叉韧带表面光泽变淡,边侧有絮状被膜覆盖,有明显组织坏死;温针灸组韧带表面光泽,韧带呈正常螺旋走形。③苏木精-伊红染色:模型组前交叉韧带内明显组织坏死,大量新生毛细血管,成纤维细胞及胶原纤维排列松散;温针灸组韧带内有少量组织坏死,偶见新生血管,细胞及胶原纤维排列疏松、欠规则。④透射电镜观察:模型组前交叉韧带纤维排列紊乱,粗细不均,分布不均,成纤维细胞较多且形态不规则;温针灸组纤维基本呈纵向排列,纤维粗细、分布不均,少量椭圆形的纤维细胞存在。⑤RT-PCR和Western blot结果:与空白组比较,模型组类胰岛素样生长因子1、转化生长因子βmRNA及蛋白表达明显降低(均P<0.05);温针灸组上述2项指标表达明显升高(均P<0.05)。⑥结果说明,温针灸可改善前交叉韧带的损伤,可能通过调控类胰岛素样生长因子1、转化生长因子β的表达治疗膝骨关节炎。

关键词：膝骨关节炎温针灸前交叉韧带超微结构生长因子

Genome-wide identification and characterization of the bHLH gene family in an ornamental woody plant Prunus mume

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Horticultural Plant Journal 2022年第4期8卷 531-544页

作者： Yanyan wu Sihui wu Xueqin Wang Tianyu Mao Manzhu Bao junwei Zhang Jie Zhang Key Laboratory of Horticultural Plant Biology(Ministry of Education) College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China

The basic helix-loop-helix(bHLH)transcription factor family is the second-largest family in plants,where it plays essential roles in development,and the responses to multiple abiotic and biotic stressors.However,little information is available about this gene family in Prunus mume,which is widely cultivated in East Asia as an ornamental fruit tree.Here,100 PmbHLH genes were identified,and their evolution and functions were explored in P.mume for the first time.The PmbHLH genes were classified into 21 subfamilies.The chromosomal distribution,physicochemical properties,bHLH domain,conserved motif,and intron/exon compositions were also analyzed.Furthermore,the evolutionary pattern,divergence time of the PmbHLH family,and genetic relationships among P.mume,Arabidopsis thaliana,and Prunus persica and Fragaria vesca of Rosaceae were explored.The functional prediction analysis of these PmbHLHs indicated that their functions varied,and included participating in the formation of organs and tissues,responding to stress,and the biosynthesis and metabolism of hormones and other secondary metabolites.Interestingly,expression analyses of PmbHLHs also revealed diverse expression patterns.Most of the PmbHLH genes were highly expressed in roots and stems,and a few were highly expressed in leaves,buds,and fruits,indicating tissue expression specificity.Eight PmbHLH genes,which were upregulated during low-temperature stress,may have critical roles in the response to cold stress.Ten PmbHLHs were differentially expressed between weeping and upright branches in a P.mume F_(1) population.These results shed light on the structure and evolution of the PmbHLH gene family,and lay a foundation for further functional studies of the bHLH genes.

关键词： Prunus mume bHLH gene family Evolutionary analyses Functional prediction Expression pattern analyses

肾小管脂滴包被蛋白2在预测糖尿病肾脏病进展中的作用及机制

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中国病理生理杂志 2024年第5期40卷 882-889页

作者：沈蕊于心石彩凤秦松言方奕何爱琴吴小梅杨俊伟周阳南京医科大学第二附属医院肾脏病中心江苏南京210003

目的:探讨肾小管上皮细胞中脂滴包被蛋白2(PLIN2)的表达变化能否预测糖尿病肾脏病(DKD)肾功能的减退,以及PLIN2促进DKD肾小管上皮细胞损伤的机制。方法:采用回顾性队列研究,选择12例非糖尿病患者(作为对照)和51例DKD患者为研究对象,收... 详细信息

目的:探讨肾小管上皮细胞中脂滴包被蛋白2(PLIN2)的表达变化能否预测糖尿病肾脏病(DKD)肾功能的减退,以及PLIN2促进DKD肾小管上皮细胞损伤的机制。方法:采用回顾性队列研究,选择12例非糖尿病患者(作为对照)和51例DKD患者为研究对象,收集人口学及实验室检查等资料。采用简化线性混合效应模型获得估算的肾小球滤过率(eGFR)斜率,Spearsman相关分析和广义线性模型预测PLIN2与DKD患者肾功能减退的关系。体内实验采用BKS-db/db小鼠和链脲佐菌素构建的糖尿病小鼠模型。体外实验采用葡萄糖处理原代肾小管上皮细胞,转染PLIN2 siRNA或过表达质粒。蛋白免疫印迹和免疫荧光染色检测PLIN2表达,油红染色检测脂滴蓄积,细胞实时能量代谢分析仪检测线粒体氧消耗率(OCR)。结果:DKD患者肾小管中的PLIN2表达水平较对照显著升高。随访24 (12,39)个月,DKD患者的eGFR斜率为-7.42(-19.77,-2.09) mL/(min·1.73 m^(2)·year)。基线时肾小管PLIN2阳性面积百分比的增大与随访期内eGFR斜率的变化显著相关[风险比(HR)=1.90,95%置信区间(CI):1.00~3.58],提示肾小管PLIN2预测DKD肾功能减退的价值。糖尿病小鼠模型肾小管中的脂滴和PLIN2表达均较对照组显著增多,葡萄糖处理造成肾小管上皮细胞中脂滴蓄积和PLIN2表达增多。干扰PLIN2显著缓解葡萄糖引起的脂滴蓄积;反之,过表达PLIN2加重葡萄糖引起的脂滴蓄积。葡萄糖处理造成肾小管上皮细胞线粒体OCR的下降在干扰PLIN2后得到缓解;然而,过表达PLIN2直接造成线粒体OCR降低。结论:肾小管PLIN2能预测DKD患者肾功能的减退。PLIN2抑制线粒体有氧呼吸,参与肾小管上皮细胞的脂滴蓄积和DKD的进展。

关键词：糖尿病肾脏病脂滴包被蛋白2 估算的肾小球滤过率斜率脂滴氧消耗率

Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components

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Journal of Materials Science & Technology 2022年第3期98卷 177-185页

作者： Min Cheng Zhengguan Lu Jie wu Ruipeng Guo junwei Qiao Lei Xu Rui Yang College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

The present work reports the effect of thermal induced porosity(TIP)on the high-cycle fatigue(HCF)and very high-cycle fatigue(VHCF)behaviors of hot-isostatic-pressed(HIPed)Ti-6Al-4V alloy from gasatomized powder.The results show that the residual pores in the as-HIPed powder compacts present no obvious effect on the HCF life.The regrowth of the residual pores can be observed after solution heat treatment.The pore location ranks the most harmful for the fatigue life compared with the other initiating defects.The maximum stress intensity factors were calculated.The plastic zone size of fine granular area(FGA)is much less than the characteristic size of the microstructure,and the crucial size of the internal pores in this study is about 40μm.The failure types of fatigue specimens in the VHCF regime were classified,and the competition of different failure types was described based on the modified Poisson distribution.

关键词： Titanium alloy Hot isostatic pressing Fatigue life Crack initiation type Porosity

A Review:Pre-lithiation Strategies Based on Cathode Sacrificial Lithium Salts for Lithium-Ion Capacitors

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Energy & Environmental Materials 2023年第6期6卷 10-32页

作者： Kailimai Su Yan Wang Bao Yang Xu Zhang Wei wu junwei Lang Xingbin Yan Laboratory of Clean Energy Chemistry and Materials State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Qingdao Center of Resource Chemistry&New Materials Qingdao 266000China State Key Laboratory of Optoelectronic Materials and Technologies School of Materials Science and EngineeringSun Yat-Sen UniversityGuangzhou 510275China

Similar to lithium-ion batteries(LIBs),during the first charge/discharge process of lithium-ion capacitors(LICs),lithium-intercalated anodes(e.g.,silicon,graphite,and hard carbon)also exhibit irreversible lithium intercalation behaviors,such as the formation of a solid electrolyte interface(SEI),which will consume Li^(+)in the electrolyte and significantly reduce the electrochemical performance of the system.Therefore,pre-lithiation is an indispensable procedure for LICs.At present,commercial LICs mostly use lithium metal as the lithium source to compensate for the irreversible capacity loss,which has the demerits of operational complexity and danger.However,the pre-lithiation strategy based on cathode sacrificial lithium salts(CSLSs)has been proposed,which has the advantages of low cost,simple operation,environmental protection,and safety.Therefore,there is an urgent need for a timely and comprehensive summary of the application of CSLSs to LICs.In this review,the important roles of pre-lithiation in LICs are detailed,and different pre-lithiation methods are reviewed and compared systematically and comprehensively.After that,we systematically discuss the pre-lithiation strategies based on CSLSs and mainly introduce the lithium extraction mechanism of CSLSs and the influence of intrinsic characteristics and doping amount of CSLSs on LICs performance.In addition,a summary and outlook are conducted,aiming to provide the essential basic knowledge and guidance for developing a new pre-lithiation technology.

关键词： cathode sacrificial lithium salts lithium-ion battery capacitors lithium-ion capacitors perspectives pre-lithiation strategies