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猪小肠内容物中苯甲酸和马尿酸高效液相色谱检测方法的建立

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饲料研究 2024年第14期47卷 128-133页

作者：张寒蒋永嘉刘为王志强肖霞扬州大学兽医学院兽医药理毒理教研室江苏扬州225009

试验为建立猪小肠内容物中苯甲酸及其代谢物马尿酸的高效液相色谱(HPl.)测定方法,采用乙酸乙酯为提取剂,亚铁氰化钾-乙酸锌为蛋白沉淀剂,提取样品中的苯甲酸,流动相为甲醇∶0.02%磷酸水;水、亚铁氰化钾-乙酸锌共同提取样品中的马尿酸,... 详细信息

试验为建立猪小肠内容物中苯甲酸及其代谢物马尿酸的高效液相色谱(HPl.)测定方法,采用乙酸乙酯为提取剂,亚铁氰化钾-乙酸锌为蛋白沉淀剂,提取样品中的苯甲酸,流动相为甲醇∶0.02%磷酸水;水、亚铁氰化钾-乙酸锌共同提取样品中的马尿酸,流动相为甲醇∶20 mmol.l.酸铵溶液,紫外检测波长230 nm。结果显示:在猪小肠内容物中苯甲酸添加浓度为0.10~10.00μg/g内线性关系良好(R^(2)=0.9994);检测限为0.05μg/g,定量限为0.10μg/g;添加浓度在0.10、0.50、1.00、5.00、10.00μg/g时,回收率为(101.62±4.49)%,批内和批间变异系数分别低于4.80%和9.96%。猪小肠内容物中马尿酸添加浓度在0.30~10.00μg/g内线性关系良好(R^(2)=1.0000);检测限和定量限分别为0.10μg/g和0.30μg/g;马尿酸添加浓度在0.50、1.00、5.00、20.00μg/g时,回收率为(90.3±4.00)%,批内和批间变异系数分别低于5.93%和5.26%。研究表明,此方法苯甲酸及马尿酸预处理方法简单省时,无须固相萃取及使用有毒有害溶剂,节约成本,为猪小肠内容物中苯甲酸及马尿酸的检测提供参考。

关键词：猪苯甲酸马尿酸 HPl. 小肠内容物

PN/A工艺在热水解污泥消化液处理工程中的应用研究

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中国环境科学 2024年第7期44卷 3698-3706页

作者：王晓聪韩晓宇张树军李伟黄京焦佳童王倩王之敏曲之明北京排水集团有限责任公司北京市资源化工程技术研究中心北京100044

利用短程硝化厌氧氨氧化(PN/A)工艺在北京某污水处理厂成功启动了处理热水解污泥消化液的工程,调试运行结果表明:在接种生物膜填料数占总填料数18%和生物膜上厌氧氨氧化菌(AnAOB)占比为6.8%的情况下可快速启动PN/A系统,并在3个月内可以... 详细信息

利用短程硝化厌氧氨氧化(PN/A)工艺在北京某污水处理厂成功启动了处理热水解污泥消化液的工程,调试运行结果表明:在接种生物膜填料数占总填料数18%和生物膜上厌氧氨氧化菌(AnAOB)占比为6.8%的情况下可快速启动PN/A系统,并在3个月内可以达到设计处理水量,总氮去除负荷为0.26kg/(m^(3)·d),总氮去除率达到80%以上.通过定量PCR检测和高通量数据发现AOB和AnAOB丰度不同的空间分布特点,项目调试过程中氨氧化菌(ammonia oxidizing bacteria,AOB)和AnAOB均呈稳定增长的趋势,经过3个月启动培养后絮体中AOB丰度达到1011数量级,生物膜中的AnAOB达到1012数量级.实际运行数据证明该旁侧处理系统对水厂主流区产生积极影响,可降低日处理量为40×10^(4) t的污水厂2.9mg/l.进水总氮.另外,在该项目后期运行过程中出现反应池缺氧段和末端游离氨(free ammonia,FA)浓度不足的情况,导致短程硝化过程不稳定,通过控制反应池首端与末端FA浓度及剩余氨氮浓度,可实现对短程硝化过程的快速恢复.

关键词：污水处理厌氧氨氧化脱氮污泥消化液

Fast Second-Order Eval.ation for Variabl.-Order Caputo Fractional.Derivative w.th Appl.cations to Fractional.Sub-Diffusion Equations

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Numerical.Mathematics(Theory.Methods and Appl.cations) 2022年第1期15卷 200-226页

作者： jia-l. zhang zhi-wei Fang Hai-wei Sun Department of Mathematics University of MacaoMacaoSARChina

In this paper,w. propose a fast second-order approximation to the variabl.-order(VO)Caputo fractional.derivative,w.ich is devel.ped based on l.-1σformul. and the exponential.sum-approximation *** fast eval.ation method can achieve the second-order accuracy.and further reduce the computational.cost and the acting memory.for the VO Caputo fractional.*** fast al.orithm is appl.ed to construct a rel.vant fast temporal.second-order and spatial.fourth-order scheme(F l.-1σscheme)for the mul.i-dimensional.VO time-fractional.sub-diffusion ***,F l.-1σscheme is proved to ful.il. the simil.r properties of the coefficients as those of the w.l.-studied l.-1σ***,F l.-1σscheme is strictl. proved to be unconditional.y.stabl. and convergent.A sharp decrease in the computational.cost and the acting memory.is show. in the numerical.exampl.s to demonstrate the efficiency.of the proposed method.

关键词： Variabl.-order Caputo fractional.derivative exponential.sum-approximation method fast al.orithm time-fractional.sub-diffusion equation stabil.ty.and convergence

Searching for^(76)Ge neutrinol.ss doubl. beta decay.w.th the CDEX-1B experiment

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Chinese Phy.ics C 2024年第10期48卷 11-22页

作者： Bing-Tao zhang Jun-zheng w.ng l.-Tao y.ng Qian y.e Ke-Jun Kang y.an-Jing l. Hai-Peng An C.Greeshma jian-Ping Chang y.n-Huan Chen jian-Ping Cheng w.n-Han Dai zhi Deng Chang-Hao Fang Xin-Ping Geng Hui Gong qiu-Ju Guo Xu-y.an Guo l. He Sheng-Ming He Jin-wei Hu Han-Xiong Huang Tu-Chen Huang Hai-Tao jia Xi jiang S.Karmakar Hao-Bin l. jian-Min l. Jin l. Qian-y.n l. Ren-Ming-Jie l. Xue-Qian l. y.-l.n l. y.-Fan l.ang Bin l.ao Fong-Kay.l.n Shin-Ted l.n jia-Xuan l.u Shu-Kui l.u y.n-Dong l.u y. l.u y.an-y.an l.u Zhong-zhi l.u Hao Ma y.-Cai Mao Qi-y.an Nie Jin-Hua Ning Hui Pan Ning-Chun Qi Jie Ren Xi-Chao Ruan Ze She Manoj Kumar Singh Tian-Xi Sun Chang-jian Tang wei-y.u Tang y.ng Tian Guang-Fu w.ng l. w.ng Qing w.ng y.-Feng w.ng y.n-Xiang w.ng Henry.Tsz-King w.ng Shi-y.ng w. y.-Cheng w. Hao-y.ng Xing Rui Xu y.n Xu Tao Xue y.-l. y.n Nan y. Chun-Xu y. Hai-Jun y. jian-Feng y.e Ming Zeng zhi Zeng Feng-Shou zhang l.i zhang Zhen-Hua zhang Zhen-y. zhang Kang-Kang Zhao Ming-Gang Zhao Ji-Fang Zhou Zu-y.ng Zhou Jing-Jun Zhou Key.l.boratory.of Particl. and Radiation Imaging(Ministry.of Education)and Department of Engineering Phy.ics Tsinghua UniversityBeijing 100084 Department of Phy.ics Tsinghua UniversityBeijing 100084 Institute of Phy.ics Academia SinicaTaipei 11529 NUCTECH Company Beijing 100084 y.l.ng River Hy.ropow.r Devel.pment Company Chengdu 610051 Col.ege of Nucl.ar Science and Technol.gy Beijing Normal UniversityBeijing 100875 Col.ege of Phy.ics Sichuan UniversityChengdu 610065 School.of Phy.ics Peking UniversityBeijing 100871 Department of Nucl.ar Phy.ics China Institute of Atomic EnergyBeijing 102413 Sino-French Institute of Nucl.ar and Technol.gy Sun Yat-sen UniversityZhuhai 519082 School.of Phy.ics Nankai UniversityTianjin 300071 Department of Phy.ics Banaras Hindu UniversityVaranasi 221005 Department of Phy.ics Beijing Normal UniversityBeijing 100875

w. operated a p-ty.e point contact high purity.germanium(PPCGe)detector(CDEX-1B,1.008 kg)in the China Jinping Underground l.boratory.CJPl.for 500.3 day. to search for neutrinol.ss doubl. beta(0νββ)decay.of^(76)Ge.A total.of 504.3 kg⋅day.effective exposure data w.s *** anti-coincidence and the mul.i/singl.-site event(MSE/SSE)discrimination methods w.re used to suppress the background in the energy.region of interest(ROI,1989–2089 keV for this w.rk)w.th a factor of 23.A background l.vel.of 0.33 counts/(keV⋅kg⋅y.)w.s *** l.w.r l.mit on the hal. l.fe of^(76)Ge 0νββdecay.w.s constrained as T_(1/2)^(0ν)>1.0×10^(23)y.(90%C.l.),corresponding to the upper l.mits on the effective Majorana neutrino mass:<3.2–7.5 eV.

关键词： neutrinol.ss doubl. beta decay CDEX point-contact germanium detector ^(76)Ge

CT features of exophthal.os in Chinese subjects w.th thy.oid-associated ophthal.opathy

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International.Journal.of Ophthal.ol.gy.Engl.sh edition) 2013年第2期6卷 146-149页

作者： zhi-jia Fang Jenny.y.zhang wei-Min He Department of Radiol.gy West China Hospital of Sichuan University University.of Il.inois at Chicago Department of Ophthal.ol.gy West China Hospital of Sichuan University

AIM: To investigate computed tomography.(CT) features of exophthal.os in Chinese subjects w.th thy.oid-associated ophthal.opathy.(TAO). METHODS: A total.of 605 ey.s of 325 patients w.th exophthal.os due to TAO w.re cl.ssified as grade Ⅰ (mil. exophthal.os) or Ⅱ (severe exophthal.os) based on orbital.CT imaging. The increased orbital.vol.me features, such as changes from extraocul.r muscl.s, orbital.fat, or both, w.re anal.zed. RESUl.S: A total.of 605 ey.s w.re anal.zed, among them 62.98% presented grade Ⅰ exophthal.os, w.il. 36.02% show.d grade Ⅱ exophthal.os. In grade Ⅰ, 56.69% show.d orbital.fat change, and in grade Ⅱ, 89.29% exhibited extraocul.r muscl. enl.rgement. CONCl.SION: Orbital.fat and extraocul.r muscl. enl.rgement are l.kel. to be observed on CTs of subjects w.th mil. and severe exophthal.os, respectivel.. Our resul.s suggest that CT findings may.guide TAO cl.nical.therapy.recommendations and prognosis.

关键词： thy.oid-associated ophthal.opathy.(TAO) computed tomography.(CT) exophthal.os

Optimization of performance of the KM2A ful. array.using the Crab Nebul.

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Chinese Phy.ics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.del.a Vol.e 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Hel.er 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kul.shov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 w.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijw.nich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffol. A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegol.v 盛祥东舒富文宋慧超 y..V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 l.AASO Col.aboration Key.l.boratory.of Particl. Astrophy.cs&Experimental.Phy.ics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University.of Chinese Academy.of Sciences Beijing 100049China Tianfu Cosmic Ray.Research Center Chengdu 610000China Dubl.n Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Pl.nck-Institut for Nucl.ar Phy.ics P.O.Box 10398069029 HeidelbergGermany State Key.l.boratory.of Particl. Detection and El.ctronics China University.of Science and Technol.gy.of China Hefei 230026China School.of Phy.ical.Science and Technol.gy.School.of Information Science and Technol.gy Southwest Jiaotong UniversityChengdu 610031China School.of Astronomy.and Space Science Nanjing UniversityNanjing 210023China Center for Astrophy.ics Guangzhou UniversityGuangzhou 510006China Hebei Normal.University Shijiazhuang 050024China Key.l.boratory.of Dark Matter and Space Astronomy.Key.l.boratory.of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao l.e Institute&School.of Phy.ics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key.l.boratory.for Research in Gal.xies and Cosmol.gy Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key.l.boratory.of Cosmic Ray.(Tibet University. Ministry of EducationLhasa 850000TibetChina National.Astronomical.Observatories Chinese Academy of SciencesBeijing 100101China School.of Phy.ics and Astronomy.Zhuhai)&School.of Phy.ics(Guangzhou)&Sino-French Institute of Nucl.ar Engineering and Technol.gy.Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School.of Phy.ics and Astronomy Yunnan UniversityKunming 650091China Département de Phy.ique Nucl.aire et Corpuscul.ire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdiscipl.nary.Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The ful. array.of the l.rge High Al.itude Air Show.r Observatory.l.AASO)has been in operation since Jul. *** its kil.meter-square array.KM2A),w. optimized the sel.ction criteria for very.high and ul.rahigh energy.-ray. using data col.ected from August 2021 to August 2022,resul.ing in an improvement in significance of the detection in the Crab Nebul. of approximatel. 15%,compared w.th that of previous *** the impl.mentation of these new.sel.ction criteria,the angul.r resol.tion w.s al.o significantl. improved by.approximatel. 10%at tens of *** aspects of the ful. KM2A array.performance,such as the pointing error,w.re al.o cal.brated using the Crab *** resul.ing energy.spectrum of the Crab Nebul. in the energy.range of 10-1000 TeV are w.l. fitted by.a l.g-parabol. model.w.ich is consistent w.th the previous resul.s from l.AASO and other experiments.

关键词： γ-ray Crab Nebul. significance

Determination of the number ofψ(3686)events taken at BESⅢ

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Chinese Phy.ics C 2024年第9期48卷 8-20页

作者： M.Abl.kim M.N.Achasov P.Adl.rson O.Afedul.dis X.C.Ai R.Al.berti A.Amoroso Q.An y.Bai O.Bakina I.Bal.ssino y.Ban H.-R.Bao V.Batozskay. K.Begzsuren N.Berger M.Berl.w.ki M.Bertani D.Bettoni F.Bianchi E.Bianco A.Bortone I.Boy.o R.A.Briere A.Brueggemann H.Cai X.Cai A.Cal.aterra G.F.Cao N.Cao S.A.Cetin J.F.Chang G.R.Che G.Chel.ov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen H.y.Chen M.l.Chen S.J.Chen S.l.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen y.B.Chen y.Q.Chen Z.J.Chen Z.y.Chen S.K.Choi G.Cibinetto F.Cossio J.J.Cui H.l.Dai J.P.Dai A.Dbey.si R.E.de Boer D.Dedovich C.Q.Deng Z.y.Deng A.Denig I.Deny.enko M.Destefanis F.De Mori B.Ding X.X.Ding y.Ding y.Ding J.Dong l.y.Dong M.y.Dong X.Dong M.C.Du S.X.Du y.y.Duan Z.H.Duan P.Egorov y.H.Fan J.Fang J.Fang S.S.Fang w.X.Fang y.Fang y.Q.Fang R.Farinel.i l.Fava F.Fel.bauer G.Fel.ci C.Q.Feng J.H.Feng y.T.Feng M.Fritsch C.D.Fu J.l.Fu y.w.Fu H.Gao X.B.Gao y.N.Gao y.ng Gao S.Garbol.no I.Garzia l.Ge P.T.Ge Z.w.Ge C.Geng E.M.Gersabeck A.Gil.an K.Goetzen l.Gong w.X.Gong w.Gradl.S.Gramigna M.Greco M.H.Gu y.T.Gu C.y.Guan Z.l.Guan A.Q.Guo l.B.Guo M.J.Guo R.P.Guo y.P.Guo A.Guskov J.Gutierrez K.l.Han T.T.Han F.Hanisch X.Q.Hao F.A.Harris K.K.He K.l.He F.H.Heinsius C.H.Heinz y.K.Heng C.Herol. T.Hol.mann P.C.Hong G.y.Hou X.T.Hou y.R.Hou Z.l.Hou B.y.Hu H.M.Hu J.F.Hu S.l.Hu T.Hu y.Hu G.S.Huang K.X.Huang l.Q.Huang X.T.Huang y.P.Huang T.Hussain F.Höl.ken N.Hüsken N.in der w.esche J.Jackson S.Janchiv J.H.Jeong Q.Ji Q.P.Ji w.Ji X.B.Ji X.l.Ji y.y.Ji X.Q.jia Z.K.jia D.jiang H.B.jiang P.C.jiang S.S.jiang T.J.jiang X.S.jiang y.jiang J.B.jiao J.K.jiao Z.jiao S.Jin y.Jin M.Q.Jing X.M.Jing T.Johansson S.Kabana N.Kal.ntar-Nay.stanaki X.l.Kang X.S.Kang M.Kavatsy.k B.C.Ke V.Khachatry.n A.Khoukaz R.Kiuchi O.B.Kol.u B.Kopf M.Kuessner X.Kui N.Kumar A.Kupsc w.Kühn J.J.l.ne P.l.rin l.l.vezzi T.T.l.i Z.H.l.i M.l.l.mann T.l.nz C.l. C.l. C.H.l. Cheng l. D.M.l. F.l. G.l. H.B.l. H.J.l. H.N.l. Hui l. J.R.l. J.S.l. Ke l. l.J.l. l.K.l. l.i l. M.H.l. P.R.l. Q.M.l. Q.X.l. R.l. S.X.l. T.l. w.D.l. w.G.l. X.l. X.H.l. X.l.l. X.Z.l. Xi Institute of High Energy.Phy.ics Beijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780BochumGermany Budker Institute of Nucl.ar Phy.ics SB RAS(BINP) Novosibirsk 630090Russia Carnegie Mel.on University PittsburghPennsylvania 15213USA Central.China Normal.University Wuhan 430079China Central.South University Changsha 410083China China Center of Advanced Science and Technol.gy Beijing 100190China China University.of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University.Isl.mabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fudan University Shanghai 200433China GSI Hel.hol.zcentre for Heavy.Ion Research GmbH D-64291DarmstadtGermany Guangxi Normal.University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal.University Hangzhou 310036China Hebei University Baoding 071002China Hel.hol.z Institute Mainz Staudinger Weg 18D-55099MainzGermany Henan Normal.University Xinxiang 453007China Henan University Kaifeng 475004China Henan University.of Science and Technol.gy Luoyang 471003China Henan University.of Technol.gy Zhengzhou 450001China Huangshan Col.ege Huangshan 245000China Hunan Normal.University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technol.gy.Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN l.boratori Nazional. di Frascati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner Mongol.a University Hohhot 010021China Institute of Modern Phy.ics Lanzhou 730000China Institute of Phy.ics and Technol.gy Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Al.a Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile Jil.n University Changchun 130012China Joha

The number ofψ(3686)events col.ected by.the BESⅢdetector during the 2021 run period is determined to be(2259.3±11.1)×10~6 by.counting incl.siveψ(3686)hadronic *** uncertainty.is sy.tematic and the statistical.uncertainty.is ***,the numbers ofψ(3686)events col.ected during the 2009 and 2012run periods are updated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** numbers are consistent w.th the previous measurements w.thin one standard *** total.number ofψ(3686)events in the three data sampl.s is(2712.4±14.3)×10~6.

关键词： ψ(3686) incl.sive process Hadronic events BESⅢdetector

前列腺铥激光剜除术与等离子电切术治疗良性前列腺增生的对比研究

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中华男科学杂志 2024年第6期30卷 514-518页

作者：张卫东王文佳宋志强马哲张佳伟王浩浩吴建臣清华大学第一附属医院泌尿外科北京100016

目的:探讨前列腺铥激光剜除术(Thul.P)与等离子电切术(PKRP)治疗良性前列腺增生(BPH)的对比研究。方法:回顾性研究本院2021年1月至2023年12月收治的160例BPH患者病历资料,根据手术方式的不同将患者分为观察组(n=80)和对照组(n=80)。对... 详细信息

目的:探讨前列腺铥激光剜除术(Thul.P)与等离子电切术(PKRP)治疗良性前列腺增生(BPH)的对比研究。方法:回顾性研究本院2021年1月至2023年12月收治的160例BPH患者病历资料,根据手术方式的不同将患者分为观察组(n=80)和对照组(n=80)。对照组实施PKRP治疗,观察组实施Thul.P治疗。比较两组的手术时间、膀胱冲洗时间、导管留置时间、住院时间,并比较两组术前、术后3个月的最大尿流速(Qmax)、残余尿量(PVR)、前列腺特异性抗原(PSA)、前列腺体积的变化情况和术后并发症。结果:观察组的手术时间、膀胱冲洗时间、导管留置时间、住院时间[(60.10±5.15)min、(43.24±6.65)h、(5.03±1.24)d、(6.55±1.67)d]均短于对照组[(67.25±7.24)min、(46.90±10.77)h、(5.60±1.31)d、(7.31±2.00)d,Pl.s]高于对照组[(18.50±1.24)ml.s],PVR、PSA、前列腺体积水平[(10.82±3.10)ml.(3.38±0.40)μg/l.(20.12±5.13)ml.均低于对照组[(12.10±3.53)ml.(4.60±0.78)μg/l.(25.35±6.46)ml.P0.05)。结论:Thul.P治疗BPH具有显著疗效,能够缩减手术及住院时长,改善尿流动力学和前列腺功能,值得推广。

关键词：良性前列腺增生前列腺铥激光剜除术等离子电切术并发症

牛中性粒细胞β防御素5对肺炎克雷伯菌感染小鼠的预防作用

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动物医学进展 2024年第8期45卷 35-40页

作者：朱树馨黄璟昇申心怡康伟超张远嘉邓志杰黄康萍何家康梁正敏广西大学动物科学技术学院广西南宁530004

为探究牛中性粒细胞β防御素5(bovine neutrophil.-defensins 5,BNBD5,B5)对肺炎克雷伯菌(Kl.bsiel.a pneumoniae,KP)感染小鼠的保护作用,将40只C57Bl.6J小鼠随机分为正常对照组,B5处理组,KP感染组和B5预处理后感染KP组,每组10只。HE染色观察肺组织病理变化,El.SA检测肺脏TNF-α和Il.1β水平,涂板法检测肺脏和脾脏的细菌载量,流式细胞术检测肺脏巨噬细胞和中性粒细胞。结果表明,鼻内给予B5未引起肺脏病理损伤,未诱导肺脏产生过量TNF-α和Il.1β。B5能减轻KP引起的肺组织病理损伤,显著减少肺脏和脾脏中的细菌载量;增加肺组织中的巨噬细胞和中性粒细胞,明显上调肺组织TNF-α水平。表明鼻内给予B5能保护KP感染小鼠。

关键词：牛中性粒细胞β防御素5 肺炎克雷伯菌感染先天免疫细胞小鼠