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腹腔镜-内镜联合手术治疗早期胃癌初期病例技术分析
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作者 邢继尧 苗儒林 +3 位作者 吴齐 王警 陕飞 李子禹 《中国肿瘤临床》 CAS CSCD 北大核心 2024年第13期670-675,共6页
目的:回顾性分析既往接受双镜联合手术的早期胃癌患者,评价该手术治疗早期胃癌的可行性。方法:回顾性收集2013年5月至2024年4月于北京大学肿瘤医院接受双镜联合手术的早期胃癌患者。手术方式包括内镜下黏膜切除(endoscopic submucosal d... 目的:回顾性分析既往接受双镜联合手术的早期胃癌患者,评价该手术治疗早期胃癌的可行性。方法:回顾性收集2013年5月至2024年4月于北京大学肿瘤医院接受双镜联合手术的早期胃癌患者。手术方式包括内镜下黏膜切除(endoscopic submucosal dissection,ESD)联合腹腔镜淋巴结活检、经典腹腔镜-内镜联合手术(laparoscopic and endoscopic cooperative surgery,LECS)及其改良术式。收集患者临床病理特点、术后恢复指标、并发症及生存结局纳入分析。结果:共纳入9例患者,中位年龄64岁,男性6例(66.7%),女性3例(33.3%)。所有患者活检病理均为分化型胃癌。5例(55.6%)患者手术方式为ESD联合腹腔镜淋巴结活检,4例(44.4%)患者行腹腔镜辅助内镜全层切除及前哨淋巴结切检,平均麻醉时间(351.2±91.4)min,平均出血量(34.4±15.1)mL。术后出现3例(33.3%)并发症,包括1例胃排空障碍(CD2级),1例腹腔感染(CD2级),1例消化道穿孔(CD3级)。中位随访时间52个月,所有患者无复发及死亡。结论:双镜联合手术治疗早期胃癌具有可行性,其肿瘤学安全性仍需要进一步研究证实。LECS技术、适应证人群选择和前哨淋巴结切检准确率是进一步研究的重点。 展开更多
关键词 腹腔镜-内镜联合手术 早期胃癌 前哨淋巴结 功能保留手术
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螺杆菌属细菌致病基因系统进化分析
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作者 徐乐 刘兴 +3 位作者 吴琦 华召来 杨菲 张军峰 《世界华人消化杂志》 CAS 2024年第1期58-70,共13页
背景螺杆菌属(Helicobacter)与多种消化道疾病相关,除幽门螺杆菌(Helicobacter pylori,H.pylori)外,多种非H.pylori螺杆菌属细菌(non-Helicobacter pylori Helicobacters,NHPH)也从多种动物宿主的肝脏、肠道和胆囊中分离出来,作为潜在... 背景螺杆菌属(Helicobacter)与多种消化道疾病相关,除幽门螺杆菌(Helicobacter pylori,H.pylori)外,多种非H.pylori螺杆菌属细菌(non-Helicobacter pylori Helicobacters,NHPH)也从多种动物宿主的肝脏、肠道和胆囊中分离出来,作为潜在的人畜共患病病原体,其感染和致病机制尚不清楚.目的基于H.pylori致病基因探讨螺杆菌属细菌的系统进化关系.方法调取12株H.pylori和38株NHPH的基因组,基于16S rRNA、鞭毛、尿素酶以及毒力因子基因,利用MAGA 11软件进行序列比对并构建系统进化树.结果基于16S rRNA基因的系统进化分析结果显示,胃内螺杆菌(Gastric Helicobacter,GH)和肝肠螺杆菌(Enterohepatic Helicobacter Species,EHS)聚集为2个大支,GH宿主均为哺乳动物,而EHS宿主多为禽类和哺乳动物.基于细菌鞭毛动力相关基因(flaA、flaB、fliP、fliQ、fliR、fliG、fliM、fliN)的系统进化分析支持基于16S rRNA基因所得到的系统发育关系,基于脂多糖(lipopolysaccharide,LPS)合成相关基因(lptA,waaC和waaF)的系统进化关系也具有类似的规律.尿素酶基因存在于12株H.pylori和13株胃内NHPH中,仅在4株EHS(H.hepaticus、H.muridarum、H.bilis、H.anseris)中存在,但7个尿素酶基因的系统进化树未见明显一致性规律.结论螺杆菌属细菌的系统进化受到胃和肝肠定植部位的显著影响. 展开更多
关键词 螺杆菌属 16S rRNA 致病基因 进化分析
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Evolution of Superconducting-Transition Temperature with Superfluid Density and Conductivity in Pressurized Cuprate Superconductors 被引量:1
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作者 赵金瑜 蔡树 +15 位作者 陈逸雯 顾根大 闫宏涛 郭静 韩金宇 王鹏玉 周亚洲 李延春 李晓东 任治安 吴奇 周兴江 丁阳 向涛 毛河光 孙力玲 《Chinese Physics Letters》 SCIE EI CAS CSCD 2024年第4期110-117,共8页
What factors fundamentally determine the value of superconducting transition temperature Tc in high temperature superconductors has been the subject of intense debate.Following the establishment of an empirical law kn... What factors fundamentally determine the value of superconducting transition temperature Tc in high temperature superconductors has been the subject of intense debate.Following the establishment of an empirical law known as Homes'law,there is a growing consensus in the community that the Tc value of the cuprate superconductors is closely linked to the superfluid density(ρ_(s))of its ground state and the conductivity(σ)of its normal state.However,all the data supporting this empirical law(ρ_(s)=AσT_(c))have been obtained from the ambientpressure superconductors.In this study,we present the first high-pressure results about the connection of the quantities of ρ_(s) and σ with T_(c),through the studies on the Bi_(1.74)Pb_(0.38)Sr_(1.88)CuO_(6+δ)and Bi_(2)Sr_(2)CaCu_(2)O_(8+δ),in which the value of their high-pressure resistivity(ρ=1/σ)is achieved by adopting our newly established method,while the quantity ofρs is extracted using Homes'law.We highlight that the Tc values are strongly linked to the joint response factors of magnetic field and electric field,i.e.,ρ_(s) and σ,respectively,implying that the physics determining T_(c) is governed by the intrinsic electromagnetic fields of the system. 展开更多
关键词 SUPERCONDUCTORS TRANSITION CONDUCTIVITY
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Direct measurement of the break-out ^(19)F(p,γ)^(20)Ne reaction in the China Jinping underground laboratory(CJPL)
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作者 Yin‑Ji Chen Hao Zhang +28 位作者 Li‑Yong Zhang Jian‑Jun He Richard James deBoer Michael Wiescher Alexander Heger David Kahl Jun Su Daniel Odell Xin‑Yue Li Jian‑Guo Wang Long Zhang Fu‑qiang Cao Zhi‑Cheng Zhang Xin‑Zhi Jiang Luo‑Huan Wang Zi‑Ming Li Lu‑Yang Song Liang‑Ting Sun qi wu Jia‑qing Li Bao‑Qun Cui Li‑Hua Chen Rui‑Gang Ma Er‑Tao Li Gang Lian Yao‑De Sheng Zhi‑Hong Li Bing Guo Wei‑Ping Liu 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2024年第8期142-152,共11页
Calcium production and the stellar evolution of first-generation stars remain fascinating mysteries in astrophysics.As one possible nucleosynthesis scenario,break-out from the hot carbon–nitrogen–oxygen(HCNO)cycle w... Calcium production and the stellar evolution of first-generation stars remain fascinating mysteries in astrophysics.As one possible nucleosynthesis scenario,break-out from the hot carbon–nitrogen–oxygen(HCNO)cycle was thought to be the source of the calcium observed in these oldest stars.However,according to the stellar modeling,a nearly tenfold increase in the thermonuclear rate ratio of the break-out ^(19)F(p,γ)^(20) Ne reaction with respect to the competing ^(19)F(p,α)^(16) O back-processing reaction is required to reproduce the observed calcium abundance.We performed a direct measurement of this break-out reaction at the China Jinping underground laboratory.The measurement was performed down to the low-energy limit of E_(c.m.)=186 keV in the center-of-mass frame.The key resonance was observed at 225.2 keV for the first time.At a temperature of approximately 0.1 GK,this new resonance enhanced the thermonuclear ^(19)F(p,γ)^(20) Ne rate by up to a factor of≈7.4,compared with the previously recommended NACRE rate.This is of particular interest to the study of the evolution of the first stars and implies a stronger breakdown in their“warm”CNO cycle through the ^(19)F(p,γ)^(20) Ne reaction than previously envisioned.This break-out resulted in the production of the calcium observed in the oldest stars,enhancing our understanding of the evolution of the first stars. 展开更多
关键词 Nuclear astrophysics First stars Abundance of calcium Reaction cross section Reaction rate China Jinping underground laboratory(CJPL) JUNA
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NbN quantum dots anchored hollow carbon nanorods as efficient polysulfide immobilizer and lithium stabilizer for Li-S full batteries
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作者 Fei Ma Zhuo Chen +9 位作者 Katam Srinivas Ziheng Zhang Yu wu Dawei Liu Hesheng Yu Yue Wang Xinsheng Li Ming-qiang Zhu qi wu Yuanfu Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第1期260-271,I0007,共13页
The shuttle effect of lithium polysulfides(LiPSs)and uncontrollable lithium dendrite growth seriously hinder the practical application of lithium-sulfur(Li-S)batteries.To simultaneously address such issues,monodispers... The shuttle effect of lithium polysulfides(LiPSs)and uncontrollable lithium dendrite growth seriously hinder the practical application of lithium-sulfur(Li-S)batteries.To simultaneously address such issues,monodispersed Nb N quantum dots anchored on nitrogen-doped hollow carbon nanorods(NbN@NHCR)are elaborately developed as efficient Li PSs immobilizer and Li stabilizer for high-performance Li-S full batteries.Density functional theory(DFT)calculations and experimental characterizations demonstrate that the sulfiphilic and lithiophilic NbN@NHCR hybrid can not only efficiently immobilize the soluble Li PSs and facilitate diffusion-conversion kinetics for alleviating the shuttling effect,but also homogenize the distribution of Li+ions and regulate uniform Li deposition for suppressing Li-dendrite growth.As a result,the assembled Li-S full batteries(NbN@NHCR-S||Nb N@NHCR-Li)deliver excellent long-term cycling stability with a low decay rate of 0.031%per cycle over 1000 cycles at high rate of 2 C.Even at a high S loading of 5.8 mg cm^(-2)and a low electrolyte/sulfur ratio of 5.2μL mg^(-1),a large areal capacity of 6.2 mA h cm^(-2)can be achieved in Li-S pouch cell at 0.1 C.This study provides a new perspective via designing a dual-functional sulfiphilic and lithiophilic hybrid to address serious issues of the shuttle effect of S cathode and dendrite growth of Li anode. 展开更多
关键词 Dual-functional host NbN quantum dots Shuttle effect Dendrite-free Li anode Li-S full batteries
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Microfluidic preparation of surfactant-free ultrafine DAAF with tunable particle size for insensitive initiator explosives
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作者 Bo Yang Rui Li +9 位作者 Wei Cao Si-min He Jincan Zhu qi wu Heng Ding Jin Chen Weimiao Wang Zhiqiang qiao Xiaodong Li Guangcheng Yang 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第9期42-52,共11页
High purity and ultrafine DAAF(u-DAAF)is an emerging insensitive charge in initiators.Although there are many ways to obtain u-DAAF,developing a preparation method with stable operation,accurate control,good quality c... High purity and ultrafine DAAF(u-DAAF)is an emerging insensitive charge in initiators.Although there are many ways to obtain u-DAAF,developing a preparation method with stable operation,accurate control,good quality consistency,equipment miniaturization,and minimum manpower is an inevitable requirement to adapt to the current social technology development trend.Here reported is the microfluidic preparation of u-DAAF with tunable particle size by a passive swirling microreactor.Under the guidance of recrystallization growth kinetics and mixing behavior of fluids in the swirling microreactor,the key parameters(liquid flow rate,explosive concentration and crystallization temperature)were screened and optimized through screening experiments.Under the condition that no surfactant is added and only experimental parameters are controlled,the particle size of recrystallized DAAF can be adjusted from 98 nm to 785 nm,and the corresponding specific surface area is 8.45 m^(2)·g^(-1)to 1.33 m^(2)·g^(-1).In addition,the preparation method has good batch stability,high yield(90.8%-92.6%)and high purity(99.0%-99.4%),indicating a high practical application potential.Electric explosion derived flyer initiation tests demonstrate that the u-DAAF shows an initiation sensitivity much lower than that of the raw DAAF,and comparable to that of the refined DAAF by conventional spraying crystallization method.This study provides an efficient method to fabricate u-DAAF with narrow particle size distribution and high reproducibility as well as a theoretical reference for fabrication of other ultrafine explosives. 展开更多
关键词 Microfluidic preparation Screening crystallization conditions Narrow particle size distribution Low initiation sensitivity Ultrafine DAAF
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Selenocysteine methyltransferase SMT catalyzed the synthesis of Se-methylselenocysteine to regulate the accumulation of glucosinolates and sulforaphane in broccoli
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作者 qi wu Junwei Wang +4 位作者 Yuxiao Tian Chunyan Zhou Shuxiang Mao qiuyun wu Ke Huang 《Horticultural Plant Journal》 SCIE CAS CSCD 2024年第5期1151-1164,共14页
Selenocysteine methyltransferase(SMT)is a key enzyme involved in the Se metabolism pathway,and it is responsible for the catalysis of Se-methylselenocysteine(SeMSC)compound formation.Previous studies showed that selen... Selenocysteine methyltransferase(SMT)is a key enzyme involved in the Se metabolism pathway,and it is responsible for the catalysis of Se-methylselenocysteine(SeMSC)compound formation.Previous studies showed that selenium treatment activated SMT expression and promoted the accumulation of glucosinolates(GSLs)and sulforaphane,but the roles and functional mechanisms of SMT in mediating GSLs and sulforaphane synthesis remain unclear.In this study,we identified the BoSMT gene in broccoli and uncovered its roles in mediating GSLs biosynthesis.Transgenic assays revealed that BoSMT is involved in SeMSC biosynthesis in broccoli.More importantly,the contents of GSLs and sulforaphane were significantly increased in the BoSMT-overexpressing broccoli lines but decreased in the knockdown lines,suggesting that BoSMT played a positive role in regulating GSLs and sulforaphane synthesis.Further evidence indicated that BoSMT-mediated overaccumulation of GSLs and sulforaphane might be due to the increase in the endogenous SeMSC content.Compared with the mock(water)treatment,selenite-induced significantly increases of the SeMSC content in the BoSMT-knockdown plants partially compensated the phenotype of GSLs and sulforaphane loss.Compared with the mock treatment,exogenous SeMSC treatment significantly increased the contents of GSL and sulforaphane and activated GSL synthesis-related gene expression,suggesting that SeMSC acted as a positive regulator for GSL and sulforaphane production.Our findings provided novel insights into selenium-mediated GSLs and sulforaphane accumulation.The genetic manipulation of BoSMT might be a useful strategy for improving the dietary nutritional values of broccoli. 展开更多
关键词 Selenocysteine methyltransferase Transgenic broccoli Se-methylselenocysteine Glucosinolate sulforaphane Selenium
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Comparative study of the effects of Tartary buckwheat seed and sprout consumption on the physiological indices and gut microbiota of C57BL/6J mice
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作者 Guohui Nan Haixia Zhao +6 位作者 qiong wu Lisong Liu Zichao Guan Chenglei Li Huala wu Dabing Xiang qi wu 《Food Science and Human Wellness》 SCIE CSCD 2024年第2期791-800,共10页
Tartary buckwheat(Fagopyrum tataricum)is a well-known pseudocereal for its health and economic value.However,abundant antinutritional factors(ANFs)reduces its health benefits.As reported,germination can improve the nu... Tartary buckwheat(Fagopyrum tataricum)is a well-known pseudocereal for its health and economic value.However,abundant antinutritional factors(ANFs)reduces its health benefits.As reported,germination can improve the nutritional profile of grains.In this study,we systematically evaluate the safety of Tartary buckwheat seeds(TB)and Tartary buckwheat sprouts(TBS)used as high active ingredients.After evaluating nutrition levels,bioactive compounds and ANFs in TBS during germinating,5^(th)-day TBS were selected as the raw material.C57BL/6J mice were gavaged daily with distilled water,TB,or TBS for 6 weeks.The physiological indices related to ANFs were determined.Results showed that the TB intake tends to generate negative effects on the gut microbiota,and organs.Additionally,upon TB intake,the Fe^(3+)content in serum,trypsin activity in pancreas and jejunum decreased,while the cytokine,IgE,and histamine levels in serum,water content in faeces,cytokine levels in liver and jejunum increased.Conversely,TBS did not induce any obvious negative effects on the above relevant indices and showed better lipid-lowering effect.Altogether,TBS are safer and more effective as a raw material to produce the functional food for long-term consumption with the intention of preventing and treating hyperlipidaemia. 展开更多
关键词 Tartary buckwheat Tartary buckwheat sprouts Antinutritional factors Gut microbiota Health effect
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BoMyrosinase plays an essential role in sulforaphane accumulation in response to selenite treatment in broccoli
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作者 qiuyun wu qi wu +4 位作者 Yuxiao Tian Chunyan Zhou Shuxiang Mao Junwei Wang Ke Huang 《Horticultural Plant Journal》 SCIE CAS CSCD 2024年第2期488-502,共15页
Sulforaphane, a naturally specialized metabolite, plays significant roles in human disease prevention and plant defense. Myrosinase(MY) is a key gene responsible for the catalysis of sulforaphane formation, but the mo... Sulforaphane, a naturally specialized metabolite, plays significant roles in human disease prevention and plant defense. Myrosinase(MY) is a key gene responsible for the catalysis of sulforaphane formation, but the molecular mechanisms through which MY regulates sulforaphane biosynthesis in plants remains largely unknown. Here, we discovered that the change of sulforaphane content in broccoli sprouts caused by exogenous selenite treatments is positively related to BoMY expression. BoMY overexpression in the Arabidopsis thaliana tgg1 mutants could dramatically increase myrosinase activity and sulforaphane content in the rosette leaves of 35S::BoMY/tgg1 and rescue its phenotypes.Moreover, an obvious increase of myrosinase activity and sulforaphane content was displayed in transgenic BoMY-overexpressed broccoli lines.In addition, a 2 033 bp promoter fragment of BoMY was isolated. Yeast one-hybrid(Y1H) library screening experiment uncovered that one bHLH transcription factor, BoFAMA, could directly bind to BoMY promoter to activate its expression, which was further evidenced by Y1H assay and dual-luciferase reporter assay. BoFAMA is a selenite-responsive transcription factor that is highly expressed in broccoli leaves;its protein is solely localized to nucleus. Additionally, genetic evidence suggested that the knockdown of FAMA gene in Arabidopsis thaliana could significantly decrease sulforaphane yield by inhibiting the expression of myrosinase genes. Interestingly, exogenous selenite supply could partially restore the low level of sulforaphane content in transgenic Arabidopsis FAMA-silencing plants. Our findings uncover a novel function of FAMAMY module in the regulation of selenite-mediated sulforaphane synthesis and provide a new insights into the molecular mechanism by which selenite regulates the accumulation of sulforaphane in plants. 展开更多
关键词 Brassica oleracea var.italica MYROSINASE BoMY SULFORAPHANE Selenite treatment
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Coevolution of superconductivity and Hall coefficient with anisotropic lattice shrinkage in compressed KCa_(2)Fe_(4)As_(24F_(2)
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作者 韩金宇 洪文山 +9 位作者 蔡树 赵金瑜 郭静 周亚洲 王鹏玉 曹立新 罗会仟 李世亮 吴奇 孙力玲 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第7期66-70,共5页
The stability of superconductivity in superconductors is widely recognized to be determined by various factors,including charge,spin,orbit,lattice,and other related degrees of freedom.Here,we report our findings on th... The stability of superconductivity in superconductors is widely recognized to be determined by various factors,including charge,spin,orbit,lattice,and other related degrees of freedom.Here,we report our findings on the pressure-induced coevolution of superconductivity and Hall coefficient in KCa_(2)Fe_(4)As_(24F_(2),an iron-based superconductor possessing a hybrid crystal structure combining KFe_(2)As_(2) and CaFeAsF.Our investigation,involving high-pressure resistance,Hall effect and x-ray diffraction(XRD) measurements,allows us to observe the connection of the superconductivity and Hall coefficient with the anisotropic lattice shrinkage.We find that its ambient-pressure tetragonal(T) phase presents a collapse starting at around 18 GPa,where the sign of the Hall coefficient(R_(H)) changes from positive to negative.Upon further compression,both superconducting transition temperature(T_(c)) and R_(H) exhibit a monotonous decrease.At around 41 GPa,the superconductivity is completely suppressed(T_(c)=0),where the parameter a begins to decline again and the Hall coefficient remains nearly unchanged.Our experiment results clearly demonstrate that the pressure-induced anisotropic lattice collapse plays a crucial role in tuning the interplay among multiple degrees of freedom in the superconducting system and,correspondingly,the stability of the superconductivity. 展开更多
关键词 effects of pressure pnictides and chalcogenides transport properties
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A novel method for determining the resistivity of compressed superconducting materials
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作者 Liling Sun qi wu +2 位作者 Shu Cai Yang Ding Ho-kwang Mao 《Matter and Radiation at Extremes》 SCIE EI CSCD 2024年第4期1-3,共3页
The measurement of resistivity in a compressed material within a diamond anvil cell presents significant challenges.The high-pressure exper-imental setup makes it difficult to directly measure the size changes induced... The measurement of resistivity in a compressed material within a diamond anvil cell presents significant challenges.The high-pressure exper-imental setup makes it difficult to directly measure the size changes induced by pressure in the three crystallographic directions of the sample.In this study,we introduce a novel and effective method that addresses these technical challenges.This method is anticipated to offer a valuable foundation for high-pressure investigations on quantum materials,particularly those with anisotropic layered structures. 展开更多
关键词 RESISTIVITY METHOD FOUNDATION
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Effect of exercise during pregnancy on offspring development through ameliorating high glucose and hypoxia in gestational diabetes mellitus
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作者 Yi-Bo Tang Le-Sha Wang +5 位作者 Yi-Hui wu Li-Xia Zhang Lu-Yao Hu qi wu Meng-Lin Zhou Zhao-Xia Liang 《World Journal of Diabetes》 SCIE 2024年第11期2203-2219,共17页
BACKGROUND Gestational diabetes mellitus(GDM)women require prenatal care to minimize short-and long-term complications.The mechanism by which exercise during pregnancy affects organ development and whether glucose tra... BACKGROUND Gestational diabetes mellitus(GDM)women require prenatal care to minimize short-and long-term complications.The mechanism by which exercise during pregnancy affects organ development and whether glucose transporter(GLUT)1 plays a role in GDM offspring organ development remains unknown.AIM To determine the effect of exercise during pregnancy on the cardiac,hepatic and renal development of GDM mother’s offspring.METHODS Placenta samples were collected from humans and mice.GDM mouse models were created using streptozotocin along with a GDM with exercise group.The hearts,livers and kidneys of 3-and 8-week-old offspring were collected for body composition analysis and staining.The effects of high glucose levels and hypoxia were investigated using HTR8/SVneo.Transwell and wound-healing assays were performed to assess cell migration.Immunofluorescence accompanied with TUNEL and Ki67 staining was used to explore apoptosis and proliferation.RESULTS Exercise during pregnancy downregulated the GLUT1 and hypoxia inducible factor-1αexpression in placenta from individuals with GDM.Cobalt chloride induced hypoxia and high glucose levels also significantly decreased migration and apoptosis of HTR8/SVneo cells.In addition,exercise reduced inflammatory cell infiltration in the liver and decreased the tubular vacuolar area in the kidneys of offspring.CONCLUSION GDM affects the growth and development of organs in offspring.Exercise during pregnancy can reverse adverse effects of GDM on the development of the heart,liver,and kidney in offspring. 展开更多
关键词 Gestational diabetes mellitus EXERCISE Glucose transporter 1 Hypoxia inducible factor-1α PLACENTA OFFSPRING
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Primary ovarian cancer combined with primary fallopian tube cancer:A case report
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作者 Su-Ning Bai qi wu Li-Yun Song 《World Journal of Clinical Cases》 SCIE 2024年第17期3188-3193,共6页
BACKGROUND Low grade serous carcinoma of the ovary(LGSOC)is a rare type of epithelial ovarian cancer with a low incidence rate.The origin of ovarian cancer has always been a hot topic in gynecological oncology researc... BACKGROUND Low grade serous carcinoma of the ovary(LGSOC)is a rare type of epithelial ovarian cancer with a low incidence rate.The origin of ovarian cancer has always been a hot topic in gynecological oncology research,and some scholars believe that the origin of ovarian malignant tumors is the fallopian tubes.Primary fallopian tube cancer is the lowest incidence of malignant tumors in the female reproductive system.There are only a few reports in the literature,but the mortality rate is very high.But in clinical practice,fallopian tube cancer is very common,but in most cases,it is classified as ovarian cancer.CASE SUMMARY We report a 54 years old postmenopausal woman who was hospitalized with a lower abdominal mass and underwent surgical treatment.The final pathological confirmation was low-grade serous carcinoma of the right ovary and low-grade serous carcinoma of the left fallopian tube.No special treatment was performed after the surgery,and the patient was instructed to undergo regular follow-up without any signs of disease progression.CONCLUSION The prognosis of LGSOC is relatively good,over 80%of patients still experience disease recurrence. 展开更多
关键词 Low grade serous carcinoma of the ovary Primary fallopian tube cancer Ovarian cancer Epithelial ovarian cancer Case report
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Clinical Observation of Disposal Uterine Cavity Observation and Suction Surgery System on Terminating Pregnancy in Very Early Pregnancy
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作者 qi wu Suning Bai +2 位作者 Wenfei wu Liyun Song Lina Han 《International Journal of Clinical Medicine》 2023年第11期449-456,共8页
Objective: To compare the clinical effects of uterine cavity observation and suction surgery system with ultrasound guided induced abortion in very early pregnancy induced abortion surgery. Method: Select 80 patients ... Objective: To compare the clinical effects of uterine cavity observation and suction surgery system with ultrasound guided induced abortion in very early pregnancy induced abortion surgery. Method: Select 80 patients who requested termination of pregnancy due to early pregnancy from August 2022 to April 2023, and analyze the data. 40 patients who underwent ultrasound-guided induced abortion to terminate pregnancy were included in the control group, and 40 patients who underwent uterine cavity observation surgery to terminate pregnancy were included in the observation group. Compare the surgical time, number of times the straw enters the uterine cavity, incidence of complications, and menstrual recovery time between the two groups. Results: There was no statistically significant difference in the surgical time between the observation group and the control group, but the number of times negative pressure straws entered the uterine cavity and the incidence of surgical complications in the observation group were significantly lower than those in the control group (P Conclusion: Applying the uterine cavity observation and suction surgical system to terminate pregnancy in very early pregnancy has the advantages of minimal damage to the uterus and low incidence of surgical complications, greatly protecting the patient’s fertility. 展开更多
关键词 Uterine Cavity Observation Suction Surgery Ultrasound-Guided Induced Abortion Clinical Observation of Early Pregnancy
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Tuberculosis Infected T Lymphocyte Spot as a Differential Diagnosis of Pulmonary Tuberculosis and Choriocarcinoma Recurrence: A Case Report and Review of the Literature
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作者 qi wu Zhaoping Chu +7 位作者 Jun Dai Ligang Jia Xinling Wang Lihui Li Jie Li Yuan Zhang Ping Yan Jianxiang Hou 《Journal of Biosciences and Medicines》 2023年第9期31-36,共6页
Introduction: Choriocarcinoma is an aggressive tumor, whose incidence is 0.18 per 100,000 women between the ages of 15 and 49 years [1]. Although its prognosis has improved with the development of chemotherapy regimen... Introduction: Choriocarcinoma is an aggressive tumor, whose incidence is 0.18 per 100,000 women between the ages of 15 and 49 years [1]. Although its prognosis has improved with the development of chemotherapy regimens, the mortality rate of patients with brain metastases is reportedly 29.7% [2]. After chemotherapy, most often, the reappearance of masses in pulmonary is considered to be a sign of relapse. Case presentation: The patient was a 32-year-old Asian Chinese female who delivered a dead male infant at 33 weeks gestation. The placenta appeared to be normal. The major presentation was a haemorrhage of the vagina. The patient received combined treatment with systematic multi-agent chemotherapy and whole-brain radiation therapy at the General Hospital of Hebei Province and achieved complete remission. Two years after remission, a chest CT scan revealed a mass in the right lung that had become larger over 6 months. The patient’s serum β-human chorionic gonadotropin (β-HCG) level was normal, and the tuberculosis infected T lymphocyte spot (T-SPOT.TB) tests were positive. The patient was started on anti-tuberculosis therapy, after which the size of her right lung mass decreased. Conclusion: Lung masses after choriocarcinoma require extensive laboratory and imaging exams to exclude recurrence. This case highlights the importance of differential diagnoses of lung masses in patients with choriocarcinomas. Imaging studies, β-HCG and local lesion resection should be employed to rule out choriocarcinoma recurrence. 展开更多
关键词 CHORIOCARCINOMA TUBERCULOSIS
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聚乙二醇基可加工固-固相变储能复合材料的制备与表征
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作者 闫东广 葛驰 +5 位作者 吴奇 郜建舟 顾铖煜 范应强 罗发亮 宁宗轲 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2023年第10期51-58,共8页
以聚对苯二甲酸丁二酯(PBT)、己二酸(AA)和碳纳米管(MWCNTs)分别为主封装材料、辅封装材料和导热填料,采用原位共混的方法制备了聚乙二醇(PEG)基相变储能复合材料(PCMs)。红外光谱分析表明,PCMs制备过程中,PEG与PBT发生了酯交换反应,与A... 以聚对苯二甲酸丁二酯(PBT)、己二酸(AA)和碳纳米管(MWCNTs)分别为主封装材料、辅封装材料和导热填料,采用原位共混的方法制备了聚乙二醇(PEG)基相变储能复合材料(PCMs)。红外光谱分析表明,PCMs制备过程中,PEG与PBT发生了酯交换反应,与AA和MWCNTs发生了酯化反应。扫描电镜照片显示MWCNTs与PCMs有优异的相容性,在PCMs中分布均匀。热重分析、差示扫描量热分析和导热测试表明,添加1%的MWCNTs后,PCMs的起始分解温度升高了80℃,相变焓值增加约5%,达到143 J/g,热导率增加了36.8%,达到0.26 W/(m·K)。X射线衍射分析显示,MWCNTs的加入提升了PCMs的结晶能力,从而增加了其相变焓值。PCMs可注塑成型为标准样条,具有优异的可加工性。注塑样条在70℃放置2 h后,仍然能够保持最初的形状,展示出典型的固-固相变特征。 展开更多
关键词 聚乙二醇 碳纳米管 固-固相变 储能
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“绿氢”工业化碱性催化剂研究现状及未来展望 被引量:6
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作者 徐斯然 吴奇 +3 位作者 卢帮安 唐堂 张佳楠 胡劲松 《物理化学学报》 SCIE CAS CSCD 北大核心 2023年第2期38-63,共26页
电解水制氢技术的发展对于加快实现全球碳中和目标具有重要意义。然而,碱性介质中缓慢的析氢/析氧反应动力学过程目前是阻碍该技术发展的瓶颈问题。基于此,本文首先综述了碱性环境下析氢反应与析氧反应不同的动力学理论机制,总结了针对... 电解水制氢技术的发展对于加快实现全球碳中和目标具有重要意义。然而,碱性介质中缓慢的析氢/析氧反应动力学过程目前是阻碍该技术发展的瓶颈问题。基于此,本文首先综述了碱性环境下析氢反应与析氧反应不同的动力学理论机制,总结了针对改善动力学反应过程的理论设计策略。随后,介绍了目前电解水催化剂的设计理念及方向。对新兴的“绿氢”技术而言,探索在高电流密度下高性能电催化剂对这项技术在工业化应用推广中起着核心作用。同时,大规模合成策略是辅助合成工业电极的关键技术。进一步,我们在推进“绿氢”工业化应用的基础上总结了目前常用三种电解槽,介绍了目前电解槽设计的局限性及对应解决方案。总之,深入研究适用于碱性环境中的工业电催化剂、商业膜或电解槽的设计,提高对工业设计原则的理解,对于获得效率更高、安全性更高、实用性更强的工业电解槽具有重要意义。 展开更多
关键词 碱性介质 “绿氢” 电解水 析氢反应 析氧反应 工业电极 电解槽
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No evidence of superconductivity in a compressed sample prepared from lutetium foil and H_(2)/N_(2) gas mixture 被引量:4
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作者 Shu Cai Jing Guo +10 位作者 Haiyun Shu Liuxiang Yang Pengyu Wang Yazhou Zhou Jinyu Zhao Jinyu Han qi wu Wenge Yang Tao Xiang Ho-kwang Mao Liling Sun 《Matter and Radiation at Extremes》 SCIE EI CSCD 2023年第4期76-80,共5页
A material described as lutetium–hydrogen–nitrogen(Lu-H-N in short)was recently claimed to have“near-ambient superconductivity”[Dasenbrock-Gammon et al.,Nature 615,244–250(2023)].If this result could be reproduce... A material described as lutetium–hydrogen–nitrogen(Lu-H-N in short)was recently claimed to have“near-ambient superconductivity”[Dasenbrock-Gammon et al.,Nature 615,244–250(2023)].If this result could be reproduced by other teams,it would be a major scientific breakthrough.Here,we report our results of transport and structure measurements on a material prepared using the same method as reported by Dasenbrock-Gammon et al.Our x-ray diffraction measurements indicate that the obtained sample contains three substances:the facecentered-cubic(FCC)-1 phase(Fm-3m)with lattice parameter a=5.03Å,the FCC-2 phase(Fm-3m)with a lattice parameter a=4.755Å,and Lu metal.The two FCC phases are identical to the those reported in the so-called near-ambient superconductor.However,we find from our resistance measurements in the temperature range from 300 K down to 4 K and the pressure range 0.9–3.4 GPa and our magnetic susceptibility measurements in the pressure range 0.8–3.3 GPa and the temperature range down to 100 K that the samples show no evidence of superconductivity.We also use a laser heating technique to heat a sample to 1800 XC and find no superconductivity in the produced dark blue material below 6.5 GPa.In addition,both samples remain dark blue in color in the pressure range investigated. 展开更多
关键词 resistance SUPERCONDUCTIVITY AMBIENT
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多囊卵巢综合征无排卵的胰岛素信号和雄激素合成的新遗传风险和代谢特征 被引量:2
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作者 吴效科 黄志超 +24 位作者 曹义娟 李建 李志强 马红丽 高敬书 常惠 张多加 丛晶 王宇 吴奇 Xiaoxiao Han Pui Wah Jacqueline Chung Yiran Li Xu Zheng Lingxi Chen Lin Zeng Astrid Borchert Hartmut Kuhn Zi-Jiang Chen Ernest Hung Yu Ng Elisabet Stener-Victorin 张和平 Richard S.Legro Ben Willem J.Mol 师咏勇 《Engineering》 SCIE EI CAS CSCD 2023年第4期103-111,M0005,M0006,共11页
促排卵是多囊卵巢综合征(PCOS)不孕症的一线治疗方案。卵巢对促排卵治疗的排卵应答差被认为与胰岛素抵抗和高雄激素血症相关。在一个包含1000名PCOS不孕妇女(PCOSAct)的前瞻性队列中,我们开展了一项全外显子联合靶向单核苷酸多态性(SNP... 促排卵是多囊卵巢综合征(PCOS)不孕症的一线治疗方案。卵巢对促排卵治疗的排卵应答差被认为与胰岛素抵抗和高雄激素血症相关。在一个包含1000名PCOS不孕妇女(PCOSAct)的前瞻性队列中,我们开展了一项全外显子联合靶向单核苷酸多态性(SNP)测序以及代谢组学研究。在全基因组水平找出与无排卵显著相关的常见变异和罕见突变,并通过机器学习算法构建排卵预测模型。研究发现,ZNF438基因中标记为rs2994652(p=2.47×10^(-8))的常见变异和REC114基因中的一个罕见功能突变(rs182542888,p=5.79×10^(-6))与促排卵治疗失败显著相关。携带rs2994652 A等位基因和REC114 p.Val101Leu(rs182542888)的PCOS不孕妇女进行促排卵治疗的总排卵率更低(分别为比值比(OR)=1.96,95%置信区间(CI)[1.55~2.49];OR=11.52,95%CI[3.08~43.05]),出现排卵的间隔时间更长(平均56.7天vs.49.0天,p<0.001;78.1天vs.68.6天,p=0.014)。对于rs2994652突变者,L-苯丙氨酸水平升高并与胰岛素抵抗稳态模型(HOMA-IR)指数(r=0.22,p=0.05)和空腹血糖(r=0.33,p=0.003)呈正相关;对于rs182542888突变者,花生四烯酸代谢产物水平下降并与升高的抗苗勒管激素(r=-0.51,p=0.01)和总睾酮(r=-0.71,p=0.02)呈负相关。整合基因变异位点、代谢产物及临床特征的联合预测模型可提高对排卵的预测能力[曲线下面积(AUC)=76.7%]。ZNF438基因的一个常见变异和REC114基因的一个罕见功能突变,以及与二者相关的苯丙氨酸和花生四烯酸代谢物改变,与PCOS女性不孕症的促排卵治疗失败相关。 展开更多
关键词 Polycystic ovary syndrome INFERTILITY Ovulation responses ZNF438 REC114 Whole-exome sequencing Deep machine learning
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Adipose tissue macrophages:implications for obesity-associated cancer 被引量:2
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作者 Bei Li Si Sun +3 位作者 Juan-Juan Li Jing-Ping Yuan Sheng-Rong Sun qi wu 《Military Medical Research》 SCIE CAS CSCD 2023年第5期636-651,共16页
Obesity is one of the most serious global health problems,with an incidence that increases yearly and coincides with the development of cancer.Adipose tissue macrophages(ATMs)are particularly important in this context... Obesity is one of the most serious global health problems,with an incidence that increases yearly and coincides with the development of cancer.Adipose tissue macrophages(ATMs)are particularly important in this context and contribute to linking obesity-related inflammation and tumor progression.However,the functions of ATMs on the progression of obesity-associated cancer remain unclear.In this review,we describe the origins,phenotypes,and functions of ATMs.Subsequently,we summarize the potential mechanisms on the reprogramming of ATMs in the obesity-associated microenvironment,including the direct exchange of dysfunctional metabolites,inordinate cytokines and other signaling mediators,transfer of extracellular vesicle cargo,and variations in the gut microbiota and its metabolites.A better understanding of the properties and functions of ATMs under conditions of obesity will lead to the development of new therapeutic interventions for obesity-related cancer. 展开更多
关键词 Adipose tissue macrophages MACROPHAGE ADIPOSE OBESITY CANCER Therapy
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