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Single-cell transcriptomic landscape of peripheral blood cells provides insights into adaptation of red-eared sliders(Trachemys scripta elegans)

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Integrative Zoology 2024年第3期19卷 468-479页

作者： Rui GUO Guangwei MA Xiaofei zhai Haitao SHI Jichao WANG ministry of Education Key Laboratory for Ecology of Tropical Islands Key Laboratory of Tropical Animal and Plant Ecology of Hainan ProvinceCollege of Life SciencesHainan Normal UniversityHaikouChina

Red-eared sliders(Trachemys scripta elegans),as one of the 100 most threatening aliens,have stronger immunity than the native species in response to environmental *** cells are an important component of immunity in the ***,the blood cell researches of turtle are still in the traditional blood cell classification and morphological structure ***,turtle granulocytes cannot be accurately identified using traditional ***-cell RNA sequencing techniques have been successfully implemented to study cells based on the mRNA expression patterns of each *** present study profiled the transcriptomes of peripheral blood cells in red-eared sliders to construct a single-cell transcriptional landscape of the different cell types and explored environmental adaptation mechanism from the perspective of *** 14 transcriptionally distinct clusters(platelets,erythrocytes1,erythrocytes2,CSF1R monocytes,POF1B monocytes,neutrophils,GATA2high basophils,GATA2low basophils,CD4 T cells,CD7 T cells,B cells,ACKR4 cells,serotriflin cells,and ficolin cells)were identified in the peripheral blood cells of the red-eared *** particular,a subtype of erythrocytes(erythrocytes1)that expressed immune signals was *** blood cells were grouped into three lineages:platelet,erythroid/lymphoid,and myeloid cell ***,based on differentiation trajectory and up-regulated gene expression,ACKR4 cells were newly identified as lymphocytes,and serotriflin and ficolin cells as *** single-cell transcriptional atlas of the peripheral blood cells in red-eared sliders provided in the present study will offer a comprehensive transcriptome reference for the exploration of physiological and pathological hematology in this species.

关键词： blood cells single-cell RNA-seq Trachemys scripta elegans

The Limit Distribution of Stochastic Evolution Equations Driven by-Stable Non-Gaussian Noise

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应用数学 2024年第4期37卷 1180-1194页

作者： zhai Likai FU Hongbo School of Mathematical and Physical Sciences Wuhan Textile UniversityWuhan 430073China

We study the distribution limit of a class of stochastic evolution equation driven by an additive-stable Non-Gaussian process in the case of α∈(1,2).We prove that,under suitable conditions,the law of the solution co... 详细信息

关键词： Stochastic evolution equation α-stable Non-Gaussian process Distribution

急性髓系白血病首次诱导治疗后使用rhG-CSF对临床疗效和流式MRD影响的真实世界研究

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中国实验血液学杂志 2022年第4期30卷 1022-1027页

作者：周美安福润张青董毅秦慧翟志敏陶千山安徽医科大学第二附属医院血液科安徽合肥230601

目的:探讨真实世界中急性髓系白血病(AML)首次诱导治疗后使用重组人粒细胞集落刺激因子(rhG-CSF)对临床疗效和流式微小残留病变(MRD)的影响。方法:回顾性分析在安徽医科大学第二附属医院血液科初次确诊并接受首次诱导治疗的44例AML患者... 详细信息

目的:探讨真实世界中急性髓系白血病(AML)首次诱导治疗后使用重组人粒细胞集落刺激因子(rhG-CSF)对临床疗效和流式微小残留病变(MRD)的影响。方法:回顾性分析在安徽医科大学第二附属医院血液科初次确诊并接受首次诱导治疗的44例AML患者的临床资料,根据治疗后是否使用rhG-CSF分为对照组和治疗组,比较两组完全缓解率、中性粒细胞缺乏(粒缺)持续时间、感染发生率、发热持续时间、抗菌药物费用、住院时间、流式MRD以及无复发生存时间(RFS)等指标的差异。结果:对照组完全缓解率为60%,治疗组为74%(P=0.3429);对照组粒缺持续时间为(21.28±7.91)d,治疗组为(14.79±3.07)d(P=0.0016);对照组发热持续时间为(12.80±7.31)d,治疗组为(9.11±7.48)d(P=0.0136);对照组和治疗组感染发生率、抗菌药物费用、住院时间以及无复发生存时间等指标比较,差异均无统计学意义(均P>0.05)。治疗组最终获得CR的患者中在首次脱离粒缺时有66%的病例外周血流式细胞术检测到髓系前体细胞(占比2.25%±0.99%),容易被误判为流式MRD+。结论:AML首次诱导治疗后使用rhGCSF不仅不会影响临床缓解率,还能显著缩短粒缺时间和发热时间,但可能会影响首次脱离粒缺时外周血流式MRD检测结果分析。

关键词：急性髓系白血病重组人粒细胞集落刺激因子完全缓解微小残留病变发热

Cucurbit[8]uril-regulated face-to-face dimerization assembly enhanced photosensitization and photocatalysis

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Science China Chemistry 2024年第5期67卷 1605-1612页

作者： Haigen Nie Die Hu zhiyao Zeng Yan Fan Yaxin zhai Xin-Long Ni Key Laboratory of Chemical Biology and Traditional Chinese Medicine Ministry of Educational of ChinaKey Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan ProvinceCollege of Chemistry and Chemical EngineeringHunan Normal UniversityChangsha 410081China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of ministry of Education Department of PhysicsHunan Normal UniversityChangsha 410081China

In water, N,N′-diarylpyridinium thiazolo[5,4-d]thiazole guests(G1–G3) were encapsulated by cucurbit[8]uril(Q[8]) to construct Q[8]_(3)/G_(2) complexes, in which the encapsulated G molecules exist as an exact face-to-face dimer. These complexation behaviors have been indicated by proton nuclear magnetic resonance(~1H NMR) spectroscopy and isothermal titration calorimetry(ITC),and have been confirmed by X-ray single crystal structural analysis of Q[8]_(3)/G2_(2). While free guests G1–G3 have no ability to sensitize singlet oxygen, they all become effective singlet oxygen sensitizers when complexed with Q[8]. By irradiation of white light, Q[8]_(3)/G_(2) complexes induced selective oxidation of aryl sulfide to aryl sulfoxide in good yields and selective oxidation of dimethyl sulfide(DMS) to dimethyl sulfoxide(DMSO) in excellent yields without over-oxidation to dimethyl sulfone(DMSO_(2))even for elongated irradiation. High-yield photo-oxidation of DMS to DMSO_(2) was only achieved by irradiation of blue light in the presence of Q[8]_(3)/G1_(2), which was also effective in photobleaching of Rhodamine B in water. The higher photo-oxidation power of Q[8]_(3)/G1_(2) has been ascribed to an additional generation of reactive oxygen species besides singlet oxygen.

关键词： host-guest interaction dimerization macrocycles photosensitization

淋巴系统恶性肿瘤患者血清游离DNA含量与重排基因检测及其临床意义

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中华检验医学杂志 2006年第10期29卷 892-894页

作者：晏开力任维华徐修才翟志敏安徽省立医院中心实验室合肥230000

目的探讨血清游离DNA含量及其克隆性重排基因检测在淋巴系统恶性肿瘤诊断中的价值。方法常规方法提取与定量分析72例淋巴系统恶性肿瘤患者血清DNA;用聚合酶链反应分别对不同患者血清单个核细胞(PBMC)DNA的特异性免疫球蛋白重链CDRⅢ区、... 详细信息

目的探讨血清游离DNA含量及其克隆性重排基因检测在淋巴系统恶性肿瘤诊断中的价值。方法常规方法提取与定量分析72例淋巴系统恶性肿瘤患者血清DNA;用聚合酶链反应分别对不同患者血清单个核细胞(PBMC)DNA的特异性免疫球蛋白重链CDRⅢ区、T淋巴细胞受体γV9区序列进行扩增、检测和对照分析。结果急性淋巴细胞白血病(ALL,含B-ALL组和T-ALL组)、B-淋巴瘤组、T-淋巴瘤组患者血清游离DNA含量[分别为(418±172)μg/ml、(426±192)μg/ml、(388±170)μg/ml、(400±110)μg/ml]均高于正常对照组[(77±47)μg/ml,P0·05)。结论淋巴系统恶性肿瘤患者血清游离DNA含量明显增高,且易检测出特征性重排基因,血清游离DNA和重排基因对淋巴系统肿瘤诊断有重要价值。

关键词：血清DNA 基因重排急性淋巴细胞白血病淋巴瘤

Ultraviolet Photodetector based on Sr_(2)Nb_(3)O_(10) Perovskite Nanosheets

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Journal of Wuhan University of Technology(Materials Science) 2024年第2期39卷 282-287页

作者：张斌斌 JIA Mengmeng LIANG Qi WU Jinsong zhai Junyi 李宝文 School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China CAS Center for Excellence in Nanoscience Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijin 100083China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Liquid-phase exfoliation was employed to synthesize Sr_(2)Nb_(3)O_(10) perovskite nanosheets with thicknesses down to 1.76 *** electron microscopy(TEM),atomic force microscope(AFM),X-ray photoelectron spectrometer(XPS),and other characterization techniques were used to evaluate the atomic structure and chemical composition of the exfoliated nanosheets.A UV photodetector based on individual Sr_(2)Nb_(3)O_(10) nanosheets was prepared to demonstrate the application of an ultraviolet(UV) *** UV photodetector exhibited outstanding photocurrent and responsivity with a responsivity of 3×10^(5) A·W^(-1) at 5 V bias under 280 nm illumination,a photocurrent of 60 nA,and an on/off ratio of 3×10^(2).

关键词： perovskite nanosheets liquid-phase exfoliation ultraviolet photodetector

尼美舒利对胆管癌QBC939细胞增殖的抑制作用

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中国普外基础与临床杂志 2006年第4期13卷 413-416页

作者：黄强孔琦翟志敏安徽省立医院普外科合肥230032 皖南医学院弋矶山医院外科芜湖241001 安徽省立医院中心实验室

目的研究选择性环氧合酶-2(cyclooxygenase-2,COX-2)抑制剂尼美舒利对人胆管癌细胞系QBC939细胞增殖的抑制作用。方法应用MTT比色法观察尼美舒利对QBC939细胞增殖的影响,细胞凋亡采用透射电镜及流式细胞仪检测,应用免疫组化法检测尼美... 详细信息

目的研究选择性环氧合酶-2(cyclooxygenase-2,COX-2)抑制剂尼美舒利对人胆管癌细胞系QBC939细胞增殖的抑制作用。方法应用MTT比色法观察尼美舒利对QBC939细胞增殖的影响,细胞凋亡采用透射电镜及流式细胞仪检测,应用免疫组化法检测尼美舒利对QBC939细胞COX-2及增殖细胞核抗原(PCNA)蛋白表达的影响。结果尼美舒利呈时间、剂量依赖性抑制QBC939细胞的增殖,降低QBC939细胞COX-2和PCNA的表达,流式细胞仪检测结果显示,随药物浓度增加,细胞凋亡率显著增加,透射电镜下可见典型的细胞凋亡形态学改变。结论尼美舒利显著抑制QBC939细胞的增殖,诱导其凋亡,且呈时间、剂量依赖性,其机理可能与其下调细胞内COX-2蛋白表达有关。

关键词：环氧合酶-2 尼美舒利胆管癌细胞增殖凋亡

Pre-Cryogenian integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 899-918页

作者： Peiyuan HU Qingguo zhai Guochun ZHAO Peter A.CAWOOD Yue TANG Yiming LIU Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China Department of Earth Sciences University of Hong KongPokfulam RoadHong Kong 999077China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China School of Earth Atmosphere&EnvironmentMonash UniversityMelbourneVIC 3800Australia

The composition and geological evolution of pre-Cryogenian material in the Tibetan Plateau and its surrounding areas have played an important role in studying the formation and evolution of early supercontinents on *** paper systematically summarizes the characteristics of pre-Cryogenian sedimentation,paleontology,magmatism,and metamorphism in the Tibetan Plateau and its surrounding *** on existing data,the records of pre-Cryogenian sedimentation and paleontology are mainly concentrated in the Meso-Neoproterozoic,with relatively few records from the Paleoproterozoic or *** oldest geological record is the Hadean detrital zircons in the metamorphosed sedimentary rocks of the Himalaya and Qamdo areas(ca.4.0 Ga).The Tibetan Plateau and surrounding areas preserve records related to the formation and evolution of the Kenor supercraton,and the Columbia,Rodinia,and Gondwana ***-Cryogenian basements can be divided into three types:Tarim-,Yangtze-,and *** Tarim-type basement has a paleogeographic affinity with the northern margins of the Australian and Indian continents and lacks detrital zircon age peaks and magmatic-metamorphic records related to the Rodinia assembly(ca.1.3-0.9 Ga).The Yangtze-type basement records volcanic activity related to global cooling in the latest pre-Cryogenian period and contains Meso-Neoproterozoic stromatolite and micropaleoflora fossils,as well as magmaticmetamorphic records related to Rodinia assembly(ca.1.1-1.0 Ga).The Lhasa-type basement is characterized by Neoproterozoic rift-related sediment records(ca.900 Ma)and high-pressure metamorphic events(ca.650 Ma),with a prominent peak of detrital zircon ages of ca.1.2-1.1 *** is likely to have a paleogeographic affinity with the African continent.

关键词： Tibetan Plateau Pre-Cryogenian Sedimentation Fossils Paleogeographic evolution

新风胶囊对类风湿性关节炎补体调节蛋白红细胞CR1及CD59的影响

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中国中西医结合急救杂志 2006年第4期13卷 240-243页

作者：刘健郭雯翟志敏安徽中医学院第一附属医院风湿科安徽合肥230031 安徽省立医院中心实验室

目的:探讨新风胶囊对类风湿性关节炎(RA)补体调节蛋白的影响及其作用机制。方法:将40例RA患者按随机数字表分为新风胶囊实验组(20例)和正清风痛宁对照组(20例),并设10名健康者为健康对照组,观察两组RA患者治疗前后补体调节蛋白红细胞CR ... 详细信息

目的:探讨新风胶囊对类风湿性关节炎(RA)补体调节蛋白的影响及其作用机制。方法:将40例RA患者按随机数字表分为新风胶囊实验组(20例)和正清风痛宁对照组(20例),并设10名健康者为健康对照组,观察两组RA患者治疗前后补体调节蛋白红细胞CR 1、CD 59以及临床症状、体征关节疼痛度、关节肿胀度、关节压痛度、晨僵时间、握力、步行15 m时间和实验室指标〔血沉(ESR),类风湿因子滴度(RF),C反应蛋白(CRP),补体C 3、C 4,免疫球蛋白IgG、IgM、IgA,α1糖酸蛋白(1αAGP),红细胞计数(RBC)〕的改善情况。结果:RA患者治疗前红细胞CR 1与CD 59表达水平均显著低于健康对照组(P均<0.05);治疗后两组RA患者临床症状、体征及实验室指标均较治疗前有明显改善(P均<0.05),其中实验组关节疼痛度、晨僵时间、双手平均握力、15 m步行时间及ESR、补体C 3、RBC改善程度均较对照组显著(P<0.05或P<0.01)。两组治疗后红细胞CR 1、CD 59均比治疗前显著升高(P均<0.05),治疗后实验组的红细胞CR 1、CD 59均值均显著高于对照组(P均<0.01)。结论:新风胶囊能有效提高体内过低的补体调节蛋白红细胞CR 1、CD 59含量,进而抑制过亢的体液免疫反应,使补体有效清除体内循环免疫复合物,并减少补体对自身细胞的攻击损伤,从而控制病情活动,这也是其治疗RA的机制之一。

关键词：类风湿关节炎红细胞补体调节蛋白 CR1 CD59