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The secretory function of adipose tissues in metabolic regulation

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Life Metabolism 2024年第2期3卷 9-23页

作者： Yang Liu Shu-Wen qian Yan Tang qi-Qun Tang Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan HospitalFudan UniversityShanghai 200032China

In addition to their pivotal roles in energy storage and expenditure,adipose tissues play a crucial part in the secretion of bioactive molecules,including peptides,lipids,metabolites,and extracellular vesicles,in response to physiological stimulation and met-abolic *** secretory factors,through autocrine and paracrine mechanisms,regulate various processes within adipose *** processes include adipogenesis,glucose and lipid metabolism,inflammation,and adaptive thermogenesis,all of which are essential for the maintenance of the balance and functionality of the adipose tissue micro-environment.A subset of these adipose-derived secretory factors can enter the circulation and target the distant tissues to regulate appetite,cognitive function,energy expenditure,insulin secretion and sensitivity,gluconeogenesis,cardiovascular remodeling,and exercise *** this review,we highlight the role of adipose-derived secretory factors and their signaling pathways in modulating meta-bolic ***,we delve into the alterations in both the content and secretion processes of these factors under various physiological and pathological conditions,shedding light on potential pharmacological treatment strategies for related diseases.

关键词： adipokines autocrine paracrine endocrine metabolic regulation

L-Type Calcium Channel Modulates Low-Intensity Pulsed Ultrasound-Induced Excitation in Cultured Hippocampal Neurons

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Neuroscience Bulletin 2024年第7期40卷 921-936页

作者： Wen-Yong Fan Yi-Ming Chen Yi-Fan Wang Yu-qi Wang Jia-qi Hu Wen-Xu Tang Yi Feng qian Cheng Lei Xue State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Fudan UniversityShanghai 200433China Department of Physiology and Neurobiology School of Life SciencesFudan UniversityShanghai 200438China Institute of Acoustics School of Physics Science and EngineeringTongji UniversityShanghai 200092China Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education Tongji UniversityShanghai 200070China Center for Rehabilitation Medicine Department of Pain ManagementZhejiang Provincial People's HospitalAffliated People's HospitalHangzhou Medical CollegeHangzhou 310014China Department of Critical Care Medicine Shanghai General HospitalShanghai Jiaotong University School of MedicineShanghai 200080China Shanghai Research Institute for Intelligent Autonomous Systems Tongji UniversityShanghai 201210China Research Institute of Intelligent Complex Systems Fudan UniversityShanghai 200433China

As a noninvasive technique,ultrasound stimulation is known to modulate neuronal activity both in vitro and in *** latest explanation of this phenomenon is that the acoustic wave can activate the ion channels and further impact the electrophysiological properties of targeted ***,the underlying mechanism of low-intensity pulsed ultrasound(LIPUS)-induced neuro-modulation effects is still ***,we characterize the excitatory effects of LIPUS on spontaneous activity and the intracellular Ca^(2+)homeostasis in cultured hippocampal *** whole-cell patch clamp recording,we found that 15 min of 1-MHz LIPUS boosts the frequency of both spontaneous action potentials and spontaneous excitatory synaptic currents(sEPSCs)and also increases the amplitude of sEPSCs in hippocampal *** phenomenon lasts for>10 min after LIPUS *** with Ca^(2+)imaging,we clarified that LIPUS increases the[Ca^(2+)]cyto level by facilitating L-type Ca^(2+)channels(LTCCs).In addition,due to the[Ca^(2+)]cyto elevation by LIPUS exposure,the Ca^(2+)-dependent CaMKII-CREB pathway can be activated within 30 min to further regulate the gene transcription and protein *** work suggests that LIPUS regulates neuronal activity in a Ca^(2+)-dependent manner via *** may also explain the multi-activation effects of LIPUS beyond *** stimulation potentiates spontaneous neuronal activity by increasing Ca^(2+)influx.

关键词： Low-intensity pulsed ultrasound Neuromodulation L-type calcium channel Hippocampal neuron

New vacuum solar telescope and observations with high resolution

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Research in Astronomy and Astrophysics 2014年第6期14卷 705-718页

作者： Zhong Liu Jun Xu Bo-Zhong Gu Sen Wang Jian-qi You Long-Xiang Shen Ru-Wei Lu Zhen-Yu Jin Lin-Fei Chen Ke Lou Zhi Li Guang-qian Liu Zhi Xu Chang-Hui Rao qi-qian Hu Ru-Feng Li Hao-Wen Fu Feng Wang Men-Xian Bao Ming-Chan Wu Bo-Rong Zhang Yunnan Observatories Chinese Academy of Sciences Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences National Astronomical Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences Institute of Optics and Electronics Chinese Academy of Sciences Kunming University of Science and Technology

The New Vacuum Solar Telescope （NVST） is a one meter vacuum solar telescope that aims to observe fine structures on the Sun. The main goals of NVST are high resolution imaging and spectral observations, including measurements of the solar magnetic field. NVST is the primary ground-based facility used by the Chinese solar research community in this solar cycle. It is located by Fuxian Lake in southwest China, where the seeing is good enough to perform high resolution observations. We first introduce the general conditions at the Fuxian Solar Observatory and the primary science cases of NVST. Then, the basic structures of this telescope and instruments are described in detail. Finally, some typical high resolution data of the solar photosphere and chromosphere are also shown.

关键词： telescopes -- instrumentation: adaptive optics -- instrumentation: spec-trographs -- techniques: high angular resolution -- Sun: magnetic fields

FeNi Prussian blue analogues on highly graphitized carbon nanosheets as efficient glucose sensors

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Rare Metals 2024年第6期43卷 2730-2738页

作者： Jin-Hang Xue qiu-Hong Sun Cheng Han Yuan-Dong Yang Shao-Jie Xu qi-Peng Li Jin-Jie qian College of Life and Environmental Science Wenzhou UniversityWenzhou 325000China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325000China College of Chemistry and Chemical Engineering Zhaotong UniversityZhaotong 657000China

Meeting the continuous glucose monitoring requirements of individuals necessitates the research and development of sensors with high sensitivity and *** this study,a straightforward strategy was proposed for synthesizing ultra-thin oxygen-rich graphitized carbon nanosheets(denoted as GCS-O).These nanosheets are obtained by calcining a topologically two-dimensional indium-based coordination ***,the growth of FeNi Prussian blue analogue(PBA)on GCS-O effectively introduces active sites and increases the nitrogen content within the carbonaceous *** resulting FeNi-PBA/GCS-O composite exhibits excellent glucose sensing performance with a broad linear range of 1 to 1300μmol·L^(-1).Meanwhile,it also achieves a high sensitivity of 2496μA·mmol^(-1)·L·cm^(-2),a limit of detection of 100nmol·L^(-1)(S/N=3),and commendable long-term *** relatively simple synthesis process,exceptional sensitivity,and satisfactory electrochemical sensing performance of FeNi-PBA/GCS-O open up new directions for biosensor applications.

关键词： Coordination polymer Carbon nanosheet Prussian blue analogue Surface reconstruction Glucose oxidation

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猫冠状病毒病诊断技术研究进展

中国动物检疫 2024年第8期41卷 76-82页

作者：魏世萌郝英男潘俊慧王素春周凯钰太祁倩王楷宬中国动物卫生与流行病学中心农业农村部动物生物安全风险预警及防控重点实验室(南方)青岛市动物生物安全重点实验室山东青岛266032 青岛农业大学动物医学院山东青岛266109

猫冠状病毒病是由猫冠状病毒(feline coronavirus,FCoV)感染引起的一种以上呼吸道、肠道和胸腹膜炎症为主的猫传染性疾病,主要通过粪口途径传播,在全世界均有流行,目前无有效疫苗和特效治疗药物。其中由猫传染性腹膜炎病毒引发的猫传染... 详细信息

猫冠状病毒病是由猫冠状病毒(feline coronavirus,FCoV)感染引起的一种以上呼吸道、肠道和胸腹膜炎症为主的猫传染性疾病,主要通过粪口途径传播,在全世界均有流行,目前无有效疫苗和特效治疗药物。其中由猫传染性腹膜炎病毒引发的猫传染性腹膜炎致死率极高,且不易诊断和预防,已成为病死率最高的猫病毒性疾病之一。猫冠状病毒病的临床诊断和大部分实验室检测技术均不具有特异性,对于区分猫肠道冠状病毒和猫传染性腹膜炎病毒感染还存在一些困难。目前,基于PCR技术的RT-PCR和RT-qPCR特异性相对较高,RT-LAMP和RT-RAA等新技术的开发和应用可逐步填补临床快速检测的空白。本文通过对猫冠状病毒病诊断技术研究进展进行综述,以期为建立猫冠状病毒病快速诊断方法和制定诊断技术标准奠定基础。

关键词：猫冠状病毒猫传染性腹膜炎病毒诊断技术临床诊断实验室诊断

Enhanced hydrogen evolution reaction in FePt film with remanence due to decrease in domain walls

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Rare Metals 2024年第3期43卷 1108-1115页

作者： Hong Hong Dong-Xue Liu Jun Li Jun-Ming Li Li-qian Wu Bo Yang qing-qi Cao Dun-Hui Wang National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresJiangsu Provincial Key Laboratory for NanotechnologySchool of PhysicsNanjing UniversityNanjing210093China Hangzhou Dianzi University Hangzhou310018China Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang110819China

As an effective strategy to improve the properties of electrocatalysts,magnetic field-assisted electrocatalytic water splitting has attracted increasing attention ***,the corresponding enhancements mostly depend on the exertion of an external magnetic field during electrochemical reactions,which results in a high cost of industrial production,and makes the magnetic field manipulation of electrocatalysis become a challenging *** this work,instead of the external magnetic field,a bias magnetic field is self-supplied by the remanence state of a ferromagnetic electrocatalyst of *** to the assistance of this bias magnetic field,the FePt film in the remanence state shows the overpotential of 229 mV during hydrogen evolution reaction,which is much lower than that in its demagnetization state(283 mV).Our findings demonstrate that the remanence in ferromagnetic electrocatalysts can improve the catalytic performance,which is attributed to the decrease in domain walls.

关键词： Remanence Magnetic domains Electrocatalysis Hydrogen evolution reaction(HER)

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页岩气多尺度复杂流动机理与模型研究

中国科学：技术科学 2016年第2期46卷 111-119页

作者：朱维耀亓倩北京科技大学土木与环境工程学院北京100083

页岩气储层纳微米孔隙、裂缝结构复杂,存在多尺度流动,气体的流动规律不同于常规气藏.本文对多孔介质内气体流动进行了研究,利用努森数划分不同尺度下气体流态,阐明了不同区域的流动机理和流动特征;综合考虑达西渗流、滑移扩散效应、井... 详细信息

页岩气储层纳微米孔隙、裂缝结构复杂,存在多尺度流动,气体的流动规律不同于常规气藏.本文对多孔介质内气体流动进行了研究,利用努森数划分不同尺度下气体流态,阐明了不同区域的流动机理和流动特征;综合考虑达西渗流、滑移扩散效应、井筒附近高速非达西效应等多重非线性效应,建立了页岩气储层多尺度统一流动模型.引入页岩气储层基质-压裂缝耦合两区模型,建立了页岩气储层压裂井定压条件下的两区压力分布和产能预测方程,并结合生产实例进行了参数敏感性分析.结果表明:随着滑移扩散系数、分形系数、压裂半径的增大,页岩气井产能增加,且增加幅度减小;考虑高速非达西效应较不考虑高速非达西效应时,页岩储层产能偏低,且高速非达西效应的影响小于滑移扩散对产能的影响.该模型为体积压裂页岩气产能预测及开发指标优化提供了理论依据.

关键词：页岩气滑移高速非达西压裂井产能

拮抗剂方案下波塞冬4组患者不同时机添加人重组黄体生成素的临床效果

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生殖医学杂志 2024年第7期33卷 852-859页

作者：漆倩荣吴静王雅琴熊孟能刘傲然谢青贞武汉大学人民医院生殖医学中心武汉430060

目的探讨拮抗剂方案中不同时机添加重组人黄体生成素(rLH)在波塞冬4组患者体外受精/卵胞浆内单精子注射(IVF/ICSI)周期中的临床效果。方法回顾性分析2017年1月至2022年12月在我中心行拮抗剂方案促排卵并符合波塞冬4组诊断标准的卵巢... 详细信息

目的探讨拮抗剂方案中不同时机添加重组人黄体生成素(rLH)在波塞冬4组患者体外受精/卵胞浆内单精子注射(IVF/ICSI)周期中的临床效果。方法回顾性分析2017年1月至2022年12月在我中心行拮抗剂方案促排卵并符合波塞冬4组诊断标准的卵巢低反应(POR)患者的临床资料,按照是否添加rLH和添加时机分为4组:对照组(促排卵过程中未添加rLH,n=481)、早卵泡期添加组[在促性腺激素(Gn)启动日添加rLH,n=116]、拮抗剂日添加组(拮抗剂添加日添加rLH,n=100)和晚卵泡期添加组(Gn使用8 d后添加rLH,n=82),比较各组患者的一般情况、促排卵情况、胚胎发育情况和鲜胚移植临床妊娠结局。结果 (1)一般情况:各组间患者年龄、不孕年限、既往IVF/ICSI治疗周期数和不孕类型比较均无显著性差异(P>0.05)。(2)促排卵情况:与对照组比较,早卵泡期添加组Gn刺激天数、Gn总量均显著减少(P<0.05),而晚卵泡期添加组的Gn刺激天数和Gn总量均显著增加(P<0.01),拮抗剂日添加组Gn刺激天数显著减少(P<0.05);拮抗剂日添加组E2水平显著高于对照组(P<0.05),早卵泡期添加组HCG日≥18 mm卵泡数显著高于对照组(P<0.05),早卵泡期添加组和拮抗剂日添加组HCG日内膜厚度均显著高于对照组(P<0.05)。(3)胚胎发育情况:在IVF和ICSI周期中,早卵泡期添加组获卵数、2PN数、2PN卵裂数、D3优胚数和可利用胚胎数均显著高于对照组(P<0.05);在IVF周期中,拮抗剂日添加组获卵数、2PN数和2PN卵裂数均显著高于对照组(P<0.05)。(4)妊娠结局:早卵泡期、拮抗剂日和晚卵泡期添加组鲜胚移植率均显著高于对照组(P<0.05);早卵泡期和拮抗剂日添加组周期取消率显著低于对照组(P<0.05)。结论对于高龄、卵巢低储备的POR患者,早卵泡期添加rLH可获得更多的卵母细胞、第3天优质胚胎和可利用胚胎,降低周期取消率,获得更多的移植机会。

关键词：黄体生成素卵巢低反应高龄拮抗剂方案妊娠结局

Regulatory polymorphism of CXCL10 rs1439490 in seronegative occult hepatitis C virus infection

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World Journal of Gastroenterology 2018年第20期24卷 2191-2202页

作者： Xu Wang Song Wang Zhen-Hua Liu Wen-qian qi qian Zhang Yong-Gui Zhang De-Rong Sun Yan Xu Hong-Guang Wang Zhong-Xie Li Xian-Ling Cong Ping Zhao Chang-Yu Zhou Jiang-Bin Wang Department of Digestive China-Japan Union Hospital Affiliated to Jilin University Department of Urology First Hospital Affiliated to Jilin University Department of Infectious Disease the Fourth Affiliated University of Harbin Medical University Department of Digestive the Second People's Hospital of Daqing City Department of Digestive People's Hospital of Jilin City Department of Digestive People's Hospital of Hunchun City Department of Pathology China-Japan Union Hospital Affiliated to Jilin University

AIM To examine the relationship between the single nucleotide polymorphism CXCL10 rs1439490 and seronegative occult hepatitis C virus(HCV) infection(OCI).METHODS One hundred and three cases of seronegative OCI and 155 cases of seropositive chronic HCV infection(CHC) were diagnosed at five Liver Centers in Northeastern China, from 2012 to 2016. CXCL10 rs1439490, rs1440802, and IL-28 B rs12979860 were analyzed by sequencing. Serum CXCL10 was measured by ELISA. Intrahepatic CXCL10 was determined by quantitative PCR and immunohistochemical semi-quantitative scoring. Liver necroinflammation and fibrosis were scored according to the METAVIR *** CXCL10 rs1439490 G/G was more prevalent in OCI patients(n = 93/103; 90.3%) than in CHC patients(n = 116/155; 74.8%; P = 0.008). OCI patients had lower serum CXCL10 levels than CHC patients(192.91 ± 46.50 pg/mL vs 354.78 ± 102.91 pg/mL, P < 0.0001). Of IL-28 B rs12979860 C/C patients, OCI patients with rs1439490 G/G had lower serum and liver levels of CXCL10 and lower levels of liver necroinflammation and fibrosis than non-G/G patients. OCI patients had higher alanine aminotransferase normalization rates after Peginterferon treatment than CHC patients(P < 0.05) and serum CXCL10 decreased significantly(P < 0.0001). Liver necroinflammation and fibrosis were alleviated in 8 OCI patients after treatment. Multivariate analysis indicated that rs1439490 G/G significantly influenced the occurrence of OCI in HCV infection(OR = 0.31, 95%CI: 0.15-0.66, P = 0.002).CONCLUSION CXCL10 rs1439490 G/G is positively associated with OCI in HCV infection and antiviral outcome.

关键词： Occult hepatitis C virus infection CXCL10 Single nucleotide polymorphisms rs1439490