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Decreased Nrf2 protein level and low sperm quality in intractable spermatocystitis

Asian Journal of Andrology 2024年第2期26卷 189-194页

作者： Shi-Ze wang Jian-Nan Liu Fen-Fang Zhou ye-Jin-peng wang peng Zhang Song-Tao Cheng Department of Urology Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610072China Department of Urology Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of Health Management and Clinical Medicine School of Medicine and HealthWuhan PolytechnicUniversityWuhan 430071China

To investigate the molecular etiology of low sperm quality in patients with intractable spermatocystitis,spermatozoa samples from patients with persistent hematospermia undergoing transurethral seminal vesiculoscopy and healthy volunteers were *** samples were collected from the seminal vesicles through transurethral seminal vesiculoscopy or by masturbation *** quality was analyzed by a WLJY-9000 color semen analysis *** of tumor necrosis factor alpha(TNFa)and interleukin-6(IL-6)in the seminal plasma was performed using enzyme-linked immunosorbent assay(ELISA).Measurement of H_(2)O_(2)in the seminal plasma was performed with a hydrogen peroxide *** protein levels of nuclear factor erythroid 2-related factor 2(Nrf2)and phosphorylated-Nrf2(p-Nrf2)were measured by western blot analysis and immunofluorescence *** sperm quality parameters and increased levels of inflammatory cytokines(TNFa,IL-6,and H_(2)O_(2))in the seminal plasma were detected among the semen samples from the patients with persistent ***2 and p-Nrf2 were strongly expressed in the nucleus and periphery of human sperm cells,according to the results of the immunofluorescence *** protein levels of Nrf2 and p-Nrf2 were significantly lower in the spermatozoa samples from patients with persistent hematospermia than in those from healthy volunteers with normal sperm *** results suggested that Nrf2 signaling might play a role in the low sperm quality of patients with intractable spermatocystitis.

关键词： H_(2)O_(2) Nrf2 sperm quality spermatocystitis

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MOF/CC-derivatives with trace amount of cobalt oxides as efficient electrocatalysts for oxygen reduction reaction

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Chinese Chemical Letters 2019年第5期30卷 989-994页

作者： Rui-Juan Wu Meng Liu ye-wang peng Shuang Yao Xiang-Wei Guo Ai-Fang Geng Zhi-Ming Zhang School of Chemical and Environmental Engineering Changchun University of Science and TechnologyChangchun 130022China School of Chemistry and Chemical Engineering Tianjin University of TechnologyTianjin 300384China Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China

The development of high-efficiency,earth-abundant,and durable oxygen reduction reaction(ORR)electrocatalysts is desirable for commercialization of fuel cells,but remains a great ***,we develop a facile and practical method for preparing efficient ORR electrocatalysts by directly growing metal-organic frameworks(MOFs)Co2(INA)4·DMF(HINA=isonicotinic acid,1)and{[Co2(TPI)(H2O)2(OH)]·DMF}(H3 TPI=5-(4-(tetrazol-5-yl)phenyl)isophthalic acid,2)on the commercial carbon(CC).The resulting MOF/CCs were further pyrolysis to functionalize CC by trace amount of cobalt oxides,resulting in two composites Cal-MOF-1/CC(3)and Cal-MOF-2/CC(4),which can be used as efficient electrocatalysts for ORR with remarkable stability and large diffusion-limited current density,even superior to that of commercial Pt/C *** study reveals that the linking ligands with different structure and nitrogen contents in 1 and 2 smartly influence the types of cobalt *** catalytic activity of Co3O4/CoO/Co co-doped CC in 4 was much enhanced compared to that of CoO-doped CC in 3.

关键词： Metal-organic framework Cobalt oxide Oxygen reduction reaction Commercial carbon Electrocatalyst

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Large-scale Preparation of Black CeO_(x) with Stable Oxygen Vacancies

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Chemical Research in Chinese Universities 2025年第1期41卷 40-47页

作者： peng Huan JIANG Mengmeng ye Jinfeng wang Lei DING Shunmin CHEN Chao College of Materials and Chemical Engineering Pingxiang UniversityPingxiang337055P.R.China Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry and Chemical EngineeringNanchang UniversityNanchang330031P.R.China

Oxygen vacancy in ceria is a crucial regulation factor for modifying *** reduced oxygen vacancy will undergo rapid recombination and deactivation due to the imbalance perturbation of active oxygen species,thereby restricting their larger-scale *** this work,we proposed a strategy to stabilize oxygen vacancy in four black CeO_(x)(Si)(0

关键词： Black CeO_(x) Oxygen vacancy Ce-O_(v)-Si Stabilization Quartz sand

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Reveal short range interactions between u/d quarks in the NN, D03, and D30 systems

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Science China(Physics,Mechanics & Astronomy) 2025年第3期Mechanics & Astronomy) .卷 106-115页

作者： Qi-Fang Lü Yu-Bing Dong peng-Nian Shen Zong-ye Zhang Department of Physics Hunan Normal University Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan Province Hunan Normal University Institute of High Energy Physics Chinese Academy of Sciences School of Physical Sciences University of Chinese Academy of Sciences

The dynamic mechanism of short range interactions between u/d quarks remains an open and challenging problem. In order to reveal this quark dynamics, we perform a systematic analysis of N N, D03, and D30systems in the（extended） chiral SU（3） constituent quark models. By comparing results calculated with different models and different parameter sets, the effects of one gluon exchange and vector meson exchange terms are carefully examined. The results indicate that the vector meson exchange interactions dominate the short range interactions between u/d quarks, whereas the small residual one gluon exchange coupling strength is also allowed.

关键词： short range interactions dibaryons constituent quark models

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Insight into catalytic performance and reaction mechanism for toluene total oxidation over Cu-Ce supported catalyst

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Journal of Environmental Sciences 2025年第3期149卷 476-487页

作者： Xuan Liang Jin Zhang Juntai Tian Zenghua Xie Yue Liu peng Liu Daiqi ye School of Environment and Energy South China University of TechnologyGuangzhou 510006China National Engineering Laboratory for VOCs Pollution Control Technology and Equipment Guangzhou 510006China Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control South China University of TechnologyGuangzhou 510006China Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal South China University of TechnologyGuangzhou 510006China

Herein,three supported catalysts,CuO/Al_(2)O_(3),CeO_(2)/Al_(2)O_(3),and CuO-CeO_(2)/Al_(2)O_(3),were synthesized by the convenient impregnation method to reveal the effect of CeO_(2)addition on catalytic performance and reaction mechanism for toluene *** with CuO/Al_(2)O_(3),the T_(50)and T_(90)(the temperatures at 50%and 90%toluene conversion,respectively)of CuO-CeO_(2)/Al_(2)O_(3)were reduced by 33 and 39°C,respectively.N_(2)adsorptiondesorption experiment,XRD,SEM,EDS mapping,Raman,EPR,H_(2)-TPR,O_(2)-TPD,XPS,NH_(3)-TPD,Toluene-TPD,and in-situ DRIFTS were conducted to characterize these *** excellent catalytic performance of CuO-CeO_(2)/Al_(2)O_(3)could be attributed to its strong coppercerium interaction and high oxygen vacancies ***,in-situ DRIFTS proved that CuO-CeO_(2)/Al_(2)O_(3)promoted the conversion of toluene to benzoate and accelerated the deep degradation path of *** work provided valuable insights into the development of efficient and economical catalysts for volatile organic compounds.

关键词： Cu-Ce supported catalyst Copper-cerium interaction Oxygen vacancies Toluene oxidation Reaction mechanism

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Microplastics enhance the adsorption capacity of zinc oxide nanoparticles:Interactive mechanisms and influence factors

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Journal of Environmental Sciences 2025年第1期147卷 665-676页

作者： Weiping Xiong Min Hu Siying He Yuhang ye Yinping Xiang Haihao peng Zhaomeng Chen Zhengyong Xu Honglin Zhang Weixiang Li Shudian peng College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)Ministry of EducationChangsha 410082China Hunan Boke Environmental Engineering Co.Ltd. Hengyang 421099China College of Environmental Protection and Safety Engineering University of South ChinaHengyang 421001China Hunan Modern Environmental Technology Co.Ltd. Changsha 410004China

Microplastics(MPs)are of particular concern due to their ubiquitous occurrence and propensity to interact and concentrate various waterborne contaminants from aqueous *** on the interaction and joint toxicity of MPs on engineered nanoparticles(ENPs)are exhaustive,but limited research on the effect of MPs on the properties of ENPs in multisolute ***,the effect of MPs on adsorption ability of ENPs to antibiotics was investigated for the first *** results demonstrated that MPs enhanced the adsorption affinity of ENPs to antibiotics and MPs before and after aging showed different effects on *** polyamide prevented aggregation of ZnONPs by introducing negative charges,whereas virgin polyamide affected ZnONPs with the help of electrostatic ***-IR and XPS analyses were used to probe the physicochemical interactions between ENPs and *** results showed no chemical interaction and electrostatic interactionwas the dominant force between ***,the adsorption rate of antibiotics positively correlated with pH and humic acid but exhibited a negative correlation with ionic *** study highlights that ENPs are highly capable of accumulating and transporting antibiotics in the presence of MPs,which could result in a widespread distribution of antibiotics and an expansion of their environmental risks and toxic effects on *** also improves our understanding of the mutual interaction of various co-existing contaminants in aqueous environments.

关键词： Microplastics Engineered nanoparticles Adsorption Tetracycline

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Application of FTIR two-dimensional correlation spectroscopy(2D-COS)analysis in characterizing environmental behaviors of microplastics:A systematic review

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Journal of Environmental Sciences 2025年第1期147卷 200-216页

作者： Shuang peng Feipeng wang Dongbin Wei Cuiping wang Haijun Ma Yuguo Du Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China North Minzu University Yinchuan 750001China

Microplastics(MPs)are ubiquitous in the environment,continuously undergo aging processes and release toxic chemical *** the environmental behaviors of MPs is critical to accurately evaluate their long-term ecological *** twodimensional correlation spectroscopy(2D-COS)is a powerful tool for MPs studies,which can dig more comprehensive information hiding in the conventional one-dimensional spectra,such as infrared(IR)and Raman *** recent applications of 2D-COS in analyzing the behaviors and fates of MPs in the environment,including their aging processes,and interactions with natural organicmatter(NOM)or other chemical substances,were summarized *** main requirements and limitations of current approaches for exploring these processes are discussed,and the corresponding strategies to address these limitations and drawbacks are proposed as ***,new trends of 2D-COS are prospected for analyzing the properties and behaviors of MPs in both natural and artificial environmental processes.

关键词： Microplastics(MPs) 2D-COS application Aging processes Interactions

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Exploring Mechanism of Electroacupuncture in Modulating Neuroinflammation Based on Intestinal Flora and Its Metabolites

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Chinese Journal of Integrative Medicine 2025年第2期31卷 183-192页

作者： ye Hai-min LI Zhuo-yan ZHANG peng KANG Zhen ZHOU De-sheng School of Integrated Chinese and Western Medicine Hunan University of Chinese MedicineChangsha(410208)China Neurology Department The Second Affiliated Hospital of Hunan University of Chinese MedicineChangsha(410005)China Acupuncture and Moxibustion Massage Rehabilitation Department The Second Affiliated Hospital of Hunan University of Chinese MedicineChangsha(410005)China Neurology Department The First Hospital of Hunan University of Chinese MedicineChangsha(410011)China

Neuroinflammatory responses play an important role in the pathogenesis of various diseases,particularly those affecting the central nervous *** of neuroinflammation is a crucial therapeutic strategy for the management of central nervous system *** intestinal microbial-gut-brain axis serves as a key regulatory pathway that modulates neuroinflammatory *** flora metabolites such as short-chain fatty acids,indoles and their derivatives,lipopolysaccharides,trimethylamine oxide,and secondary bile acids exert direct or indirect effects on *** have shown that electroacupuncture(EA)modulates the composition of the intestinal microbiota and its metabolites,while also suppressing neuroinflammation by targeting the TLR4/NF-κB,NLRP3/caspase-1,and microglial cell M2-type transformation *** review discusses the mechanisms by which EA regulates neuroinflammation via intestinal microbiota and its metabolites,providing information and a foundation for further investigation of the precise therapeutic mechanisms of EA in neurological disorders.

关键词： electroacupuncture intestinal flora metabolites of intestinal flora neuroinflammation nervous system disease review

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Radical dehydroxymethylative fluorination of aliphatic primary alcohols and diverse functionalization ofα-fluoroimides via BF_(3)·OEt_(2)-catalyzed C-F bond activation

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Chinese Chemical Letters 2025年第1期36卷 239-243页

作者： peng wang Jianjun wang Ni Song Xin Zhou Ming Li Molecular Synthesis Center Key Laboratory of Marine MedicineChinese Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdao 266003China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and TechnologyQingdao 266237China

Ag_(2)CO_(3)-promoted dehydroxymethylative fluorination of aliphatic alcohols has been achieved with Selectfluor as both oxidant and fluorine *** reaction involvesβ-fragmentation of primary alkoxy radicals,followed by the fluorination of the resulting C-centered radical *** transformation proceeds under mild reaction conditions and exhibits a broad substrate scope,thus opening up a new entrance to the synthesis of fluorinated constructs includingα-fluoroimides and 1-fluoroalkyl benzoates as well as secondary and tertiary alkyl fluorides like versatile 2-fluoro-2-alkyl 1,3-propandiol *** divergent functionalization of the obtainedα-fluoroimides enables an efficient access to amine derivatives through C-F bond activation under the action of BF_(3)·OEt_(2).

关键词： Dehydroxymethylative fluorination Alkoxy radicals β-Fragmentation Silver catalysis C-F Bond activation

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Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： peng Li Meifeng Cai Shengjun Miao Yuan Li Yu wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

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