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基于蛋白组学探讨麦冬皂苷D改善肺纤维化的作用机制

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中国新药杂志 2024年第4期33卷 372-382页

作者：陈婷包晟川李京涛魏海梁惠毅闫曙光陕西中医药大学基础医学院胃肠病教研室咸阳712046 陕西省胃肠病证方药重点研究室咸阳712046 陕西中医药大学附属医院肝病一科咸阳712046 陕西中医药大学附属医院普外一科咸阳712046

目的:运用蛋白组学的方法研究麦冬皂苷D对小鼠肺纤维化的影响及其机制。方法:将C56BL/6小鼠按体质量随机分为正常组、模型组、阳性对照组和麦冬皂苷D组。除正常组外,其余各组小鼠气管滴注盐酸博来霉素5 mg·kg^(-1),24 h后阳性对照组给... 详细信息

目的:运用蛋白组学的方法研究麦冬皂苷D对小鼠肺纤维化的影响及其机制。方法:将C56BL/6小鼠按体质量随机分为正常组、模型组、阳性对照组和麦冬皂苷D组。除正常组外,其余各组小鼠气管滴注盐酸博来霉素5 mg·kg^(-1),24 h后阳性对照组给予强的松(5 mg·kg^(-1))灌胃,麦冬皂苷D组给予麦冬皂苷D(10 mg·kg^(-1))灌胃,连续给药14 d。通过显微CT观察肺组织影像学改变,染色观察小鼠肺纤维化程度,运用DIA定量蛋白组学技术检测肺组织中的差异蛋白,并分析这些差异蛋白富集的主要通路。运用Western blot(WB)对肺组织中的炎症相关蛋白进行验证。结果:与模型组比较,麦冬皂苷D给药后可显著改善小鼠肺纤维化的病理状态,CT表明小鼠肺实变减轻,染色提示肺胶原纤维化减少,肺组织中α-平滑肌肌动蛋白(α-SMA)阳性表达减轻。蛋白组学发现,相对于模型组,麦冬皂苷D组肺组织共有65个差异蛋白,其中上调蛋白46个、下调蛋白19个。GO功能富集发现,麦冬皂苷D调控的差异蛋白参与了生物过程、分子功能和细胞组分,主要富集于对压力的反应(response to stress)、碳水化合物衍生物结合(carbohydrate derivative binding)和肌原纤维(myofibril)。KEGG分析显示,麦冬皂苷D所涉及的信号通路主要包括冠状病毒疾病-新型冠状病毒肺炎(coronavirus disease-COVID-19)、补体和凝血级联(complement and coagulation cascades)、NOD样受体信号通路(NOD-like receptor signaling pathway)、肿瘤坏死因子信号通路(TNF signaling pathway)和白介素-17信号通路(IL-17 signaling pathway)等,WB结果证实麦冬皂苷D可显著降低炎症相关蛋白NOD样受体蛋白3(NLRP3)和IL-18,TNF-α,IL-6的表达(P<0.01,P<0.001)。结论:麦冬皂苷D可改善博来霉素所致的肺纤维化,其作用机制可能与减轻炎症反应、调节相关通路密切相关。

关键词：肺纤维化麦冬皂苷D 蛋白组学

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牛大力多糖的荧光标记、鉴定及其体内分布

饲料研究 2024年第8期47卷 88-91页

作者：多水银张兴波吴玉辉李静涛杨雨辉海南大学热带农林学院海南海口570100

研究旨在探究牛大力多糖在小鼠体内的吸收与分布。使用罗丹明B标记牛大力多糖得到牛大力多糖罗丹明B荧光标记物(MSP-RhB)。使用荧光显微镜和红外光谱扫描鉴定标记成功后,给小鼠灌胃MSP-RhB,分别于1、3、6、12、24h取材,通过小动物活体... 详细信息

研究旨在探究牛大力多糖在小鼠体内的吸收与分布。使用罗丹明B标记牛大力多糖得到牛大力多糖罗丹明B荧光标记物(MSP-RhB)。使用荧光显微镜和红外光谱扫描鉴定标记成功后,给小鼠灌胃MSP-RhB,分别于1、3、6、12、24h取材,通过小动物活体成像仪系统观察MSP-RhB在小鼠体内、体外的分布情况。结果显示:荧光标记牛大力多糖成功;灌胃小鼠后,MSP-RhB主要分布于胃肠道、肝脏和肾脏;MSP-RhB在1h到达小肠各段,约3h达到最大值,在小肠中停留时间长达24h。研究表明,MSP-RhB通过小肠吸收,先进入全身循环,然后分布到肝脏和肾脏中,且荧光信号随时间的推移逐渐减弱。

关键词：牛大力多糖荧光标记口服吸收体内分布

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Effects of interactions between arbuscular mycorrhizal fungi and bacteria on the growth of Lotus corniculatus L.:From the perspective of regulating rhizosphere fungal community

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Pedosphere 2024年第2期34卷 411-423页

作者： Qing ZHANG Jin CHEN Yingyue li tao HUANG Kailing XIE jing ZHOU Xiaoyu li Schools of life Sciences Anhui Agricultural UniversityHefei 230036China National Engineering Laboratory of Crop Stress Resistance Breeding Anhui Agricultural UniversityHefei 230036China Anhui Province Key Laboratory of Crop Biology Anhui Agricultural UniversityHefei 230036China

Arbuscular mycorrhizal fungi(AMF)provide essential nutrients to crops and are affected by ***-solubilizing bacteria(PSB),nitrogen-fixing bacteria(NFB),and AMF have mutually beneficial relationships with plants,but the effects of their interactions on plant growth by regulating rhizosphere fungal community have not been sufficiently *** this study,a greenhouse pot experiment was conducted to investigate the interactions between AMF and bacteria(PSB and NFB)on the growth of Lotus corniculatus ***,the role of rhizosphere fungal community in the growth of Lotus corniculatus *** explored using Illumina MiSeq high-throughput *** results showed that combined inoculation of AMF with PSB and NFB increased plant biomass,plant height,and fungal colonization *** richness,complexity,and stability of rhizosphere fungal community also increased after combined inoculation of AMF with PSB and/or NFB,particularly with *** addition,combined inoculation of AMF with PSB and NFB enriched the abundance of beneficial microorganisms,with Chaetomium and Humicola showing the greatest *** structural equation model showed that the interactions of AMF with PSB and NFB promoted plant growth by affecting fungal network structure and soil enzyme activities involved in carbon,nitrogen,and phosphorus *** findings provide evidence for the effects of interactions of AMF with PSB and NFB on rhizosphere fungal community and plant growth.

关键词： colonization intensity colonization rate combined inoculation enzyme activity network structure nitrogen-fixing bacteria phosphatesolubilizing bacteria

Exploration of cyclooxygenase-2 inhibitory peptides from walnut dreg proteins based on in silico and in vitro analysis

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Food Science and Human Wellness 2024年第3期13卷 1636-1644页

作者： Zishan Hong jing Xie liang tao jing-jing Dai Tingting li li Zhang Yuying Bai Xia Hu Jinlian Chen Jun Sheng Yang Tian College of Food Science and Technology Yunnan Agricultural UniversityKunming 650201China Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing Yunnan Agricultural UniversityKunming 650201China Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources Ministry of EducationYunnan Agricultural UniversityKunming 650201China School of Tea and Coffee Pu’er UniversityPu’er 665000China Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food Yunnan Agricultural UniversityKunming 650201China Key Laboratory of Pu-er Tea Science Ministry of EducationYunnan Agricultural UniversityKunming 650201China

Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain *** aim of this study was to rapidly screen for such peptides in WDPHs through a combination of in silico and in vitro *** total,1262 peptide sequences were observed by nano liquid chromatography/tandem mass spectrometry(nano LC-MS/MS)and 4 novel COX-2 inhibitory peptides(AGFP,FPGA,LFPD,and VGFP)were *** kinetic data indicated that AGFP,FPGA,and LFPD displayed mixed-type COX-2 inhibition,whereas VGFP was a non-competitive *** is mainly because the peptides form hydrogen bonds and hydrophobic interactions with residues in the COX-2 active *** results demonstrate that computer analysis combined with in vitro evaluation allows for rapid screening of COX-2 inhibitory peptides in walnut protein dregs.

关键词： Walnut dreg proteins Cyclooxygenase-2 inhibitory peptide Identification Virtual screening Molecular docking

Effects of Bisphenol A and Its Substitute, Bisphenol F, on the Gut Microbiota in Mice

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Biomedical and Environmental Sciences 2024年第1期37卷 19-30页

作者： MENG li Ying tao Wen Fu li jing ZHU Min ZHONG De Bin ZHOU jing QIN Xue WEI Rong Guo Department of Clinical Laboratory The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021GuangxiChina Department of Clinical Laboratory The Fifth Affiliated Hospital of Guangxi Medical UniversityNanning 530021GuangxiChina Jiangsu Key Laboratory of Environmental Engineering Jiangsu Academy of Environmental SciencesNanjing 210000JiangsuChina

Objective The aim of this study was to assess the impact of bisphenol A(BPA)and its substitute,bisphenol F(BPF),on the colonic fecal community structure and function of *** We exposed 6–8-week-old male C57BL/6 mice to 5 mg/(kg∙day)and 50μg/(kg∙day)of BPA or BPF for 14 *** samples from the colon were analyzed using 16S rRNA *** Gut microbiome community richness and diversity,species composition,and function were significantly altered in mice exposed to BPA or *** change was characterized by elevated levels of Ruminococcaceae UCG-010 and Oscillibacter and decreased levels of Prevotella 9 and ***,pathways related to carbohydrate and amino acid metabolism showed substantial *** Mice exposed to different BP analogs exhibited distinct gut bacterial community richness,composition,and related metabolic *** the essential role of gut bacteria in maintaining intestinal homeostasis,our study highlights the intestinal toxicity of BPs in vertebrates.

关键词： Bisphenol A(BPA) Bisphenol F(BPF) 16S rRNA Microbiota

Growth of ablative Rayleigh-Taylor instability induced by time-varying heat-flux perturbation

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Matter and Radiation at Extremes 2024年第1期9卷 85-93页

作者： Yang liu De-Hua Zhang jing-Fei Xin Yudong Pu Jun li tao tao Dejun Sun Rui Yan Jian Zheng Department of Modern Mechanics University of Science and Technology of ChinaHefei 230026China Deep Space Exploration Laboratory Hefei 230026China Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621900China Institute of Applied Physics and Computational Mathematics Beijing 100094China Department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefeiAnhui 230026China Collaborative Innovation Center of IFSA(CICIFSA) Shanghai Jiao Tong UniversityShanghai 200240China CAS Center for Excellence in Ultra-intense Laser Science Shanghai 201800China

The evolution of ablative Rayleigh–Taylor instability(ARTI)induced by single-mode stationary and time-varying perturbations in heat flux is studied numerically in two *** with the stationary case,time-varying heat-flux perturbation mitigates ARTI growth because of the enhanced thermal smoothing induced by the wave-like traveling heat flux.A resonance is found to form when the phase velocity of the heat-flux perturbation matches the average sound speed in the ablation *** the resonant regime,the coherent density and temperature fluctuations enhance the electron thermal conduction in the ablation region and lead to larger ablation pressure and effective acceleration,which consequently yield higher linear growth rate and saturated bubble *** enhanced effective acceleration offers increased implosion velocity but can also compromise the integrity of inertial confinement fusion shells by causing faster ARTI growth.

关键词： perturbation stationary acceleration

Influence of lithospheric thickness distribution on oil and gas basins,China seas and adjacent areas

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Acta Oceanologica Sinica 2024年第4期43卷 1-14页

作者： jing Ma Wanyin Wang Hermann Zeyen Yimi Zhang Zhongsheng li tao He Dingding Wang School of Geology Engineering and Geomatics Key Laboratory of Western China’s Mineral Resources and Geological Engineering of Ministry of EducationChang’an UniversityXi’an 710054China UMR8148 GEOPS CNRS/UniversitéParis-SaclayDépartement des Sciences de la TerreBât.50491405France CNOOC Research Institute Co. Ltd.Beijing 100027China Qingdao Institute of marine geology Qingdao 266071China Department of Earth Sciences Memorial University of NewfoundlandSt.John’sNewfoundland AlB3X5Canada University of Naples Federico Ⅱ Department of Earth SciencesNaples80138Italy

The distribution of oil and gas resources is intricately connected to the underlying structure of the ***,investigating the characteristics of lithospheric thickness and its correlation with oil and gas basins is highly *** research utilizes recently enhanced geological–geophysical data,including topographic,geoid,rock layer thickness,variable rock layer density,and interface depth *** the principles of lithospheric isostasy and heat conduction,we compute the laterally varying lithospheric thickness in the China seas and adjacent *** these results,two pivotal parameters for different types of oil and gas basins were statistically analyzed:the minimum lithospheric thickness and the relative fluctuation in lithospheric thickness.A semiquantitative analysis was used to explore the connection between these parameters and the hydrocarbon abundance within the oil and gas *** study unveils distinct variations in lithospheric thickness among basins,with oil and gas rich basins exhibiting a thicker lithosphere in the superimposed basins of central China and a thinner lithosphere in the rift basins of eastern ***,the relative fluctuations in lithospheric thickness in basins demonstrate significant disparities:basins rich in oil and gas often exhibit greater thickness ***,in the offshore basins of China,a conspicuous negative linear correlation is observed between the minimum lithospheric thickness and the relative fluctuation in lithospheric *** study posits that deep-seated thermal upwelling results in lithospheric undulations and extensional thinning in oil and gas ***,sustained deep-seated heat influences sedimentary materials in basins,creating favorable conditions for oil and gas *** insights derived from this study contribute to a quantitative understanding of the intricate relationships between deep lithospheric structures and oil and gas basins.

关键词： China seas and adjacent areas lithospheric thickness oil and gas basins

Transepithelial photorefractive keratectomy without mitomycin-C for irregular astigmatism after femtosecond laser-assisted in situ keratomileusisflap complications

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1168-1170页

作者： Ning-Na Zhang li-Ming tao jing Wang Department of Ophthalmology The Second Affiliated Hospital of Anhui Medical UniversityHefei 230000Anhui ProvinceChina

Dear Editor,W e write to present a case report of transepithelial photorefractive keratectomy(TPRK)without mitomycin-C(MMC)for irregular astigmatism after femtosecond laser-assisted in situ keratomileusis(FS-LASIK)flap *** informed consent was obtained from the patient to allow the publication of this case and associated accompanying *** study was conducted in accordance with the Helsinki *** is a surgical procedure which uses an excimer laser to ablation of both the corneal epithelium and stroma,which is widely used in clinic[1-2].The procedure may be conducted in cases where there is notable topographic irregularity or scarring following complications with the LASIK *** haze is a potential complication following TPRK,and the use of MMC as a prophylactic agent against postoperative corneal haze has been demonstrated to significantly reduce its formation after TPRK/photorefractive keratectomy(PRK).

关键词： complications mitomycin epithelium

Bioinspired Stretchable MXene Deformation-Insensitive Hydrogel Temperature Sensors for Plant and Skin Electronics

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Research 2024年第1期2023卷 389-401页

作者： Jun Wu Yinghui li Shengshun Duan Zhehan Wang Xu jing Yucheng lin Di Zhu Wei Lei Qiongfeng Shi li tao Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and EngineeringSoutheast UniversityNanjingJiangsu 210096China School of Materials Science and Engineering Southeast UniversityNanjingJiangsu 210096China Center of 2D Materials and Devices Southeast UniversityNanjingJiangsu 210096China

Temperature sensing is of high value in the wearable healthcare,robotics/prosthesis,and noncontact physiological ***,the common mechanic deformation,including pressing,bending,and stretching,usually causes undesirable feature size changes to the inner conductive network distribution of temperature sensors,which seriously influences the ***,inspired by the transient receptor potential mechanism of biological thermoreceptors that could work precisely under various skin contortions,we propose an MXene/Clay/poly(N-isopropylacrylamide)(PNIPAM)(MCP)hydrogel with high stretchability,spike response,and deformation *** dynamic spike response is triggered by the inner conductive network transformation from the 3-dimensional structure to the 2-dimensional surface after water being discharged at the threshold *** water discharge is solely determined by the thermosensitivity of PNIPAM,which is free from mechanical deformation,so the MCP hydrogels can perform precise threshold temperature(32℃)sensing under various deformation conditions,i.e.,pressing and 15%*** a proof of concept,we demonstrated the applications in plant electronics for the real-time surface temperature monitoring and skin electronics for communicating between human and *** research opens venues for the accurate temperature-threshold sensation on the complicated surface and mechanical conditions.

关键词： stretching proof precise