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我国主要HIV-1流行株耐药基因型检测方法的研究

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中华实验和临床病毒学杂志 2012年第1期26卷 66-69页

作者：牛建丽邢辉廖玲洁钟平马鹏飞王允琮赵全壁邵一鸣中国疾病预防控制中心性病艾滋病预防控制中心传染病国家重点实验室北京102206 上海市疾病预防控制中心

目的研究针对中国主要HIV-1流行株优化的实验室自建耐药基因型实验室自建检测方法（in—house）的扩增效果及检测敏感度。方法选取中国主要流行亚型的B、CRF07-BC、CRF01-AE亚型各10份样本，这些样本为2007—2009年本实验室采集采自河... 详细信息

目的研究针对中国主要HIV-1流行株优化的实验室自建耐药基因型实验室自建检测方法（in—house）的扩增效果及检测敏感度。方法选取中国主要流行亚型的B、CRF07-BC、CRF01-AE亚型各10份样本，这些样本为2007—2009年本实验室采集采自河南、新疆、湖南三地已接受抗病毒治疗患者的样本，并已确定亚型。选用生物梅里埃公司的NuclisensEasyQ方法对选取的30份样本的病毒载量平行进行3次病毒载量检测，取平均值作为载量数值。对每份样本用HIV阴性血浆进行5个浓度的梯度稀释，稀释为〉1000、401～1000、101～400、50～100和〈50拷贝／ml5个浓度梯度。提取核酸后，进行RT—PCR和巢式PCR扩增，对扩增结果进行统计扩增结果，确定每种亚型的扩增效果和最低检测限。随机选取12份样本的初浓度和最低浓度进行测序，对测序结果进行耐药结果分析和序列一致性分析。结果所选样本的病毒载量介于2．03×102～5．92×104拷贝／ml之间。自建的In—house法对载量50—1000拷贝／ml范围的样本仍可达到较高的扩增效果（86％）。样本稀释前后耐药位点相似，序列一致性在97％以上，在低病毒载量时优势病毒株的检测则更敏感。结论自建的实验室方法的灵敏度较高，对低病毒载量水平的样本仍有较高的扩增效果。

关键词：抗病毒治疗病毒载量基因型聚合酶链反应

慢性HIV-1感染人群血浆不同中和能力及与有关因素的研究

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中华微生物学和免疫学杂志 2008年第9期28卷 787-790页

作者：纪燕马丽英屈水令袁林孙坚萍马鹏飞赵全璧黄洋黄江虹邵一鸣中国疾病预防控制中心性病艾滋病预防控制中心北京100050

目的探讨安徽省既往献血的HIV慢性感染人群血浆中和能力及其与CD4、病毒载量的关系。方法从安徽省既往献血的294位HIV慢性感染人群静脉抽血，EDTA抗凝后进行血浆和外周血单个核细胞（PBMC）的分离、CD4和病毒载量的检测，采用拥有共享... 详细信息

目的探讨安徽省既往献血的HIV慢性感染人群血浆中和能力及其与CD4、病毒载量的关系。方法从安徽省既往献血的294位HIV慢性感染人群静脉抽血，EDTA抗凝后进行血浆和外周血单个核细胞（PBMC）的分离、CD4和病毒载量的检测，采用拥有共享序列的临床分离病毒1597株和实验室株SF33病毒两种病毒分别做血浆的中和试验。用200TCID50病毒感染TZM-bl细胞，通过加入不同稀释度血浆，用Luciferase Assay System检测血浆的中和能力并计算中和50％的病毒进入细胞的血浆浓度（EC50）。结果294位患者血浆针对HIV-1实验株SF33和临床分离株1597的中和能力间差异有统计学意义（P〈0．05），针对实验株的中和能力明显高于临床分离株，91％患者血浆对HIV-1实验株SF33具有一定的中和抗体，其中EC50〉500的抗体水平较高的血浆占33％，对临床分离株1597的中和抗体阳性率为79％，其中EC50〉500的占7％。方差分析显示，血浆中和能力在CD4不同水平之间没有显著差异。294位HIV-1B′亚型感染的血浆病毒载量（lg）平均为4．40（2．60～6．46）。方差分析显示，血浆对SF33的中和能力在不同病毒载量水平之间有显著差异，病毒载量不同的各组血浆针对1597病毒的中和能力之间差异无统计学意义。经Spearman’s相关分析，对SF33株的中和水平与病毒载量呈正相关，对1597株的中和水平与病毒载量的相关性没有统计学意义，在病毒载量lg〈4的患者中，10．53％血浆样品的EC50高于500；在病毒载量lg≥5的患者中，6．46％血浆样品的EC50高于500。结论HIV-1慢性感染人群的血浆对实验株SF33的中和能力随着病毒复制能力的提高而增加，但对临床分离株1597的中和能力未见相关性。

关键词： HIV-1B′ 慢性感染中和能力病毒载量 CD4

Crystal Structure and Theoretical Calculation of N-[4-(2-Methoxyphenoxy)]phenyl Acetanilide

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1077-1083页

作者： ZHANG Cheng-Gang LI quan WANG bi-Qin zhao Ke-Qing College of Chemistry and Material Science Sichuan Normal University Key Laboratory of Advanced Functional Materials Sichuan Higher Education System Chengdu 610066 China

N-[4-（2-Methoxyphenoxy）]phenyl acetanilide has been synthesized and its structure was determined by X-ray diffraction analysis with a = 0.6152（4）, b = 1.1728（4）, c = 1.2367（4） nm, α = 91.34（3）, β = 93.22（4）, γ = 102.61（3）°, V = 0.8688（7） nm3 and Dc = 1.274 Mg/m3. Theoretical investigations on the title compound were carried out by full optimization on its structural unit at the B3LYP/6-31G＊＊ level. And ultimately, the infrared, Raman spectra, electronic absorption spectra, and the relationships between temperature and thermodynamic functions （Hm, Sin, Cpm） were obtained.

关键词： phenyl acetanilide crystal structure spectra thermodynamic properties

Solvothermal Synthesis, Structure and the Secondorder NLO Properties of a Novel Non-metal 3-D Borophosphate:（NH4）2[B2P2O8（OH）2]

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Chinese Journal of Structural Chemistry 2019年第11期38卷 1909-1915页

作者： FENG Yu-quan zhao Qian bi Dong-Qin College of Chemistry and Pharmacy Engineering Nanyang Normal University

A new non-metal 3-D borophosphate compound formulated as(NH4)2[B2P2O8(OH)2](1)has been synthesized by a solvothermal method and characterized by elemental analysis,energy-dispersive X-ray spectroscopy(EDS),IR spectrum and single-crystal X-ray *** borophosphate(NH4)2[B2P2O8(OH)2]crystallizes in the cubic system,space group P213 with Z=2,a=b=c=7.586(4)?,V=436.6(4)?3,Mr=281.64,Dc=2.127 g/cm^3,λ=0.71073?,μ=0.551 mm^-1,F(000)=284,R=0.0277 and wR=0.0758 for 262 observed reflections with I>2σ(I)and S=*** structure is constructed by the connection of PO4 and BO3(OH)tetrahedra to form a 3-D anionic framework containing 4-and 8-membered rings(MRs),with two NH4+cations located in the channels of the 8-membered *** N–H…O hydrogen bonds are observed in its packing structure and enhanced the stability of crystal *** addition,its thermal stability,UV spectrum and second-order NLO properties have been also investigated.

关键词： solvothermal synthesis borophosphate UV spectrum second-order NLO properties

Acellular fish skin grafts in diabetic foot ulcer care:Advances and clinical insights

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World Journal of Diabetes 2025年第1期16卷 34-38页

作者： Yu zhao quan-quan Shen Geriatric Medicine Center Department of EndocrinologyZhejiang Provincial People's Hospital(Affiliated People's Hospital)Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Department of Nephrology Zhejiang Provincial People’s Hospital Bijie HospitalBijie 551700Guizhou ProvinceChina Urology&Nephrology Center Department of NephrologyZhejiang Provincial People's Hospital(Affiliated People's HospitalHangzhou Medical College)Hangzhou 310014Zhejiang ProvinceChina

Diabetic foot ulcers(DFUs)represents a significant public health issue,with a rising global prevalence and severe potential complications including *** treatments often fall short due to various limitations such as high recurrence rates and extensive resource *** editorial explores the innovative use of acellular fish skin grafts as a transformative approach in DFU *** studies and a detailed case report highlight the efficacy of acellular fish skin grafts in accelerating wound closure,reducing dressing changes,and enhancing patient outcomes with a lower socio-economic *** their promise,challenges such as limited availability,patient acceptance,and the need for further research *** these through more extensive randomized controlled trials and fostering a multidisciplinary treatment approach may optimize DFU care and reduce the global health burden associated with these complex wounds.

关键词： Diabetic foot ulcer Acellular matrix tissues Acellular fish skin grafts Wound healing bioengineered materials

North Celestial Region Observed with 21 CentiMeter Array

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Research in Astronomy and Astrophysics 2022年第1期22卷 126-136页

作者： bi-Xuan zhao Qian Zheng Huan-Yuan Shan quan Guo Kuan-Jun Li Shanghai Astronomical Observatory Chinese Academy of Sciences80 Nandan RoadShanghai 200030China National Astronomical Observatory Chinese Academy of Sciences20 Datun RoadBeijing 100101China

The 21 CentiMeter Array(21 CMA) is a radio interferometer in western China. The key science objective of21 CMA is statistically measuring the redshifted H I 21 cm signal of the Epoch of Reionization(EoR). In order to achieve this, a catalog of radio sources is necessary for both calibration and foreground removal. In this work, we present a catalog of 832 radio sources within a radius of 5° around the North Celestial Pole region observed with21 CMA. Three days of data taken in 2013 are used in the analysis, with a frequency coverage from 75 to 200 MHz and an angular resolution of about two arcminutes at 200 MHz. Flux densities and estimated spectral indices of the radio sources are provided in the source catalog. For simplicity, only the east–west baseline is used for the observations to avoid the so-called w-term in the data analysis. The longest baseline along the east–west direction is 2780 m. Comparing our source counts with other radio observations, we find a good agreement with the observations made with the Giant Metrewave Radio Telescope and Murchison Widefield Array. Our data reduction is still limited by grating lobes of very bright sources in the field due to the redundant configuration of21 CMA. We note that understanding the properties of radio sources, and modeling and removing the radio sources are challenges for the EoR experiments.

关键词： radio continuum:general instrumentation:interferometers radio continuum:galaxies methods:observational

不同烫漂方式及冷冻速率对预制西兰花质构品质的影响

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食品科学 2025年第1期46卷 121-130页

作者：赵伊诺金鑫毕金峰谢意通杜婷天津科技大学食品科学与工程学院天津300457 中国农业科学院农产品加工研究所农业农村部农产品加工重点实验室北京100193 沈阳农业大学食品学院辽宁沈阳110866

为探究预制西兰花加工过程中烫漂方式及冷冻速率对西兰花质构品质的影响,对经2种烫漂方式(热水烫漂、蒸汽烫漂)及3种冷冻温度(-20、-40、-80℃)处理的西兰花样品,利用低场核磁共振、理化特性分析方法测定不同处理组样品的水分分布、持... 详细信息

为探究预制西兰花加工过程中烫漂方式及冷冻速率对西兰花质构品质的影响,对经2种烫漂方式(热水烫漂、蒸汽烫漂)及3种冷冻温度(-20、-40、-80℃)处理的西兰花样品,利用低场核磁共振、理化特性分析方法测定不同处理组样品的水分分布、持水性、相对电导率和硬度,观察微观结构。结果表明:维持西兰花硬度的最佳工艺为蒸汽烫漂后进行-40℃冷冻,在此工艺条件下,与对照组相比,处理组西兰花水分分布中结合水峰面积占比(A21)增加最多、持水性最强,花序部分保留66.72%硬度、茎部分保留62.53%硬度,相对电导率增加至87.01%;通过扫描电子显微镜观察发现,经过该处理的西兰花保持了较好的细胞结构。本研究得到了有效维持解冻西兰花质构的工艺,并揭示了不同处理对西兰花水分分布及细胞膜完整性影响的机制,为实际生产过程保持冷冻预制西兰花品质提供了理论与技术支撑。

关键词：预制西兰花持水性水分迁移质构

High-precision magnetic field measurement system based on a coherent population trapping magnetometer onboard the SATech-01 satellite

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Science China Technological Sciences 2025年

作者： Hongbo XUE Wei SONG Haoran zhao Yiteng ZHANG Shanzhi YE Jindong WANG Ran TAO Peng SANG Keli CHEN Xingzi bi bingjun CHENG bin ZHOU Yongliang XUE Yingying TANG Liu LIU Jinsong LI Xiaocheng ZHU Baoquan LI Jinguo LIU Wen CHEN Xiaofeng ZHANG Yonghe ZHANG Lei LI State Key Laboratory of Space Weather National Space Science Center Chinese Academy of Sciences Key Laboratory of Solar Activity and Space Weather National Space Science Center Chinese Academy of Sciences Key Laboratory of Electronics and Information Technology for Space Systems National Space Science Center Chinese Academy of Sciences State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Innovation Academy for Microsatellites Chinese Academy of Sciences

On July 27, 2022, a high-precision system for measuring the magnetic field based on a coherent population trapping magnetometer（referred to as the CPT system） was launched onboard the Space Advanced Technology demonstration satellite（SATech-01） by a ZK-1A rocket. The payload comprises a scalar coherent population trapping magnetometer（CPTM）, triaxial anisotropic magnetoresistance magnetometer（AMRM）, and nano star tracker mounted on a non-magnetic telescopic tubular mast. This configuration enables synchronized measurement of scalar and vector geomagnetic fields, as well as the attitude,making the payload with its compact sensors suitable for applications on miniature satellite platforms. On November 7, 2022,the novel telescopic tubular mast was deployed in orbit, extending to a length of 5.28 m. The CPTM, an absolute scalar magnetometer with an omnidirectional sensor, is the first China-developed quantum/atomic magnetometer successfully operating in space. In orbit, the CPTM has sensitivity of ～10 pT/Hz1/2and can automatically operate under complex magnetic field variations. The difference between the scalar fields obtained using the CPTM and CHAOS model has a mean deviation of–3.73 n T and a standard deviation of 26.11 nT（1σ）, without on-orbit calibration or correction. The miniaturized AMRM has a sensitivity of ～0.3 n T/Hz1/2and maintains stable and reliable operation in orbit. The low-power and miniaturized nano star tracker has a measurement uncertainty of 14.23″（1σ） in orbit. The mission has realized the on-orbit technical verification of the integrated and synchronized detection of the vector magnetic field and attitude and fully validated the system's performance,automation level, and reliability.

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Modular assembly of Co4-thiacalix[4]arene units and Keggin-type SiW12O40 for visible-light photothermal conversion

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Tungsten 2025年第1期 112-119页

作者： Jia-Hui Li Qing zhao Dong-Ao Mao Kun Zhou Bao-Kuan Chen Yan-Feng bi School of Petrochemical Engineering Liaoning Petrochemical University

The construction of metal-organic coordination clusters（MCCs） using modular secondary building units is an important method for preparing functional *** this study,two new MCCs modularly assembled from Keggin-type {SiW12O40}H4TC4A=p-tert-Butylthiacalix[4]arene(SiW12) units and thiacalixarene-supported Co4-thiacalix[4]arene(Co4-TC4A polynuclear second-building units（PSBUs,H4TC4A=p-tert-Butylthiacalix[4]arene） are *** two MCCs,abbreviated as Co4-SiW12and Co8-SiW12,were structurally characterized by single-crystal X-ray *** Co4-SiW12is a supramolecular structure involving cation-anion interactions between Co4-TC4A PSBUs and ***8-SiW12features "barbell-like" shapes with two Co4-TC4A coordinatively linked to a Keggin-type SiW12unit on opposite via W-O_t-Co *** coordination of Co4-TC4A to SiW12in Co8-SiW12resulted in significantly improved photothermal conversion performances compared with Co4-SiW12and pure SiW12or ***-gap determination and photophysical analysis combined with density functional theory calculations indicated the binding mode between Co4-TC4A PSBUs and SiW12,which considerably influences the way of electron transport and the conversion ability of visible light to heat.

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