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Formation of water disinfection byproduct 2,6-dichloro-1,4-benzoquinone from chlorination of green algae

Journal of Environmental Sciences 2018年第1期30卷 1-8页

作者： fei ge Yao Xiao Yixuan Yang Wei Wang Birget Moe Xing-Fang Li College of Environment and Resources Xiangtan University College of Environment and Energy South China University of Technology Division of Analytical and Environmental Toxicology Department of Laboratory Medicine and Pathology Faculty of Medicine and DentistryUniversity of Alberta College of Environmental and Resource Sciences Zhejiang University Alberta Centre for Toxicology Department of Physiology and Pharmacology Faculty of Medicine University of Calgary

We report that green algae in lakes and rivers can serve as precursors of halobenzoquinone（HBQ） disinfection byproducts（DBPs） produced during chlorination. Chlorination of a common green alga, Chlorella vulgaris, produced 2,6-dichloro-1,4-benzoquinone（2,6-DCBQ）, the most prevalent HBQ DBP in disinfected water. Under varying p H conditions（p H 6.0–9.0）, 2,6-DCBQ formation ranged from 0.3 to 2.1 μg/mg C with maximum formation at p H 8.0. To evaluate the contribution of organic components of C. vulgaris to 2,6-DCBQ formation, we separated the organics into two fractions, the protein-rich fraction of intracellular organic matter（IOM） and the polysaccharide-laden fraction of extracellular organic matter（EOM）. Chlorination of IOM and EOM produced 1.4 μg/mg C and 0.7 μg/mg C of 2,6-DCBQ, respectively. The IOM generated a two-fold higher 2,6-DCBQ formation potential than the EOM fraction, suggesting that proteins are potent 2,6-DCBQ precursors. This was confirmed by the chlorination of proteins extracted from C. vulgaris： the amount of 2,6-DCBQ produced is linearly correlated with the concentration of total algal protein（R2= 0.98）. These results support that proteins are the primary precursors of 2,6-DCBQ in algae, and control of green algal bloom outbreaks in source waters is important for management of HBQ DBPs.

关键词： Disinfection byproducts Halobenzoquinones Green algae Proteins Precursors

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Co-transformation of HMs-PAHs in rhizosphere soils and adaptive responses of rhizobacteria during whole growth period of rice(Oryza sativa L.)

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Journal of Environmental Sciences 2023年第10期132卷 71-82页

作者： Shengwei Yi Feng Li ChenWu fei ge Chuang Feng Ming Zhang Yun Liu Hainan Lu College of Environment Science and Resources Xiangtan UniversityXiangtan 411105China Hunan Engineering Laboratory for High-Efficiency Purification Technology and its Application in Complex Heavy Metal Wastewater Treatment Xiangtan 411105China Scientific Research Innovation Platform of Environmental Behavior and Control Principle about New Pollutants in Hunan Provincial Universities Xiangtan 411105China Department of Environmental Engineering China Jiliang UniversityHangzhou 310018China Shanghai Academy of Environmental Sciences Shanghai 200233China

This study investigated the transformations of heavy metals(HMs) and polycyclic aromatic hydrocarbons(PAHs) in rhizosphere soils and adaptive responses of rhizobacterial community under the real field conditions during four growth stages(e.g., greening, tillering, heading, and maturity) of early rice(Zhongjiazao 17) and late rice(Zhongyou 9918) in Jiangshe village(JSV) and Yangji village(YJV). Results showed that rhizosphere soils of YJV were mildly polluted by Cd and PAHs compared to that of JSV. The relative abundance of bioavailable Cd(bio-Cd) and bioavailable As(bio-As) in rhizosphere soil increased before the heading stage but decreased at the subsequent growth stage, but the content of ΣPAHs in rhizosphere soil decreased gradually during whole growth period. The dominant rhizobacteria genera at YJV(e.g., Bacillus, Massilia, Sphingomonas, and geobacter) increased at an abundance level from the tillering to heading stage. Rhizobacteria interacted with the above co-pollutant more intensely at the tillering and heading stage, where genes involved in HM-resistance and PAH-degradation appeared to have a significant enhancement. The contents of bioCd and bio-As in rhizosphere soil of early rice were higher than that of late rice at each growth stage, especially at the heading stage. Bio-Cd, ΣPAHs, and organic matter were key factors influencing the community structure of rhizobacteria. Results of this study provide valuable insights about the interactions between HM-PAH co-pollutant and rhizobacterial community under real field conditions and thus develop in-situ rhizosphere remediation techniques for contaminated paddy fields.

关键词： Heavy metals(HMs) PAHs Co-pollutants Rhizobacterial community Paddy field

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Alterations of gene profiles in Leydig-cell-regenerating adult rat testis after ethane dimethane su Ifonate-treatment

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Asian Journal of Andrology 2015年第2期17卷 253-260,I0009页

作者： Yu-fei Zhang Kai-Ming Yuan Yong Liang Yan-Hui Chu Qing-Quan Lian Yu-fei ge Wei Zhen Chantal M Sottas Zhi-Jian Su Ren-Shan ge Heilongjiang Key Laboratory of Anti-fibrosis Biotherapy Mudanjiang Medical University Mudanjiang 157011 China The 2nd Affiliated Hospital Wenzhou Medical College Wenzhou 325000 China The Affiliated Taizhou Municipal Hospital Taizhou University Taizhou 318000 China The Population Council New York 10065 USA Department of Pathology Molecular Pathology Laboratory Montefiore Medical Centre Albert Einstein College of Medicine Bronx NY 10467 USA College of Life Science and Technology Jinan University Guangzhou 510632 China

成年睾丸间质细胞（ALC）是睾丸中产生雄激素的唯一内分泌细胞，只占有睾丸细胞的1％-5％。大鼠睾丸中的睾丸间质细胞被EDs去除后能够再生。本研究中，我们主要研究了大鼠睾丸经EDS处理后睾丸间质细胞再生及基因的变化图谱。EDS处理后7... 详细信息

成年睾丸间质细胞（ALC）是睾丸中产生雄激素的唯一内分泌细胞，只占有睾丸细胞的1％-5％。大鼠睾丸中的睾丸间质细胞被EDs去除后能够再生。本研究中，我们主要研究了大鼠睾丸经EDS处理后睾丸间质细胞再生及基因的变化图谱。EDS处理后7、21、35、90天后分析血清中睾酮、睾丸基因图谱和一些类固醇生成相关的蛋白变化情况。EDS处理后第7天睾丸中睾酮水平几乎检测不到，然后开始恢复。处理后7天，81个基因下调2倍或者更多，其中48个基因检测不到，包括类固醇合成通路中的蛋白Star、Scarbl、Cypllal、Cypl7al、Hsd3bl、CyplblICyp2al。这些基因在21天开始表达增多，到90天已经完全恢复到正常水平。89个基因上调2倍或者更高，nPkib。这些上调的基因到90天恢复正常；其中Cyp2al直到35天才开始恢复，表明这个基因只在成年睾丸间质细胞中表达，不在前体细胞中表达。qPCR，Westernblot、半定量免疫组织染色检测了随机抽取的基因和蛋白确认其变化情况。

关键词： EDS 基因分析睾丸间质细胞类固醇生成

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Clinical characteristics of non-perianal fistulating Crohn＇s disease in China： a single-center experience of 184 cases

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Chinese Medical Journal 2012年第14期125卷 2405-2410页

作者： WANG ge-fei, Nanjing Univ Sch Med Dept Surg Jinling Hosp Nanjing 210002 Jiangsu Peoples R China

Background There is little information of non-perianal fistulating Crohn＇s disease in the consensus published by the European Crohn＇s and Colitis Organization in 2006 and 2010. This study was designed to demonstrate the clinical characteristics of non-perianal fistulating Crohn＇s disease among homogenous Chinese population. Methods One-hundred-and-eighty-four patients were retrospectively collected. All of these patients were diagnosed of Crohn＇s disease between February 2001 and April 2011. Results The male-to-female ratio was 2.7：1. The most common symptoms at onset were abdominal pain （88.0%）, diarrhea （34.7%）, and fever （28.3%）. The most common disease location and behavior at diagnosis were small bowel （56.0%） and penetrating （51.6%）. Among 324 non-perianal fistulae, the most common types were ileocolonic anastomotic （30.9%）, terminal ileocutaneous （19.7%）, and enteroenteric anastomotic （11.4%）. One-hundred-and-thirty- eight （75.0%） patients received antibiotics, and I^-Iactam （85.5%） and metronidazole （67.4%） are most frequently used. One-hundred-and-seventy-eight （96.7%） patients suffered 514 surgical operations, and the cumulative surgical rates after 1, 3, and 5 years were 38.0%, 52.2%, and 58.7% respectively. Nine patients died during the follow-up period, and the cumulative survival rates after 1, 3, and 5 years were 97.8%, 96.7%, and 96.2% respectively. Conclusions This study displayed the clinical characteristics of non-perianal fistulating Crohn＇s disease in our center. Large population-based studies are required for further investigation in China.

关键词： Crohn 'S disease, non-perianalfistulae inflammatory bowel disease, clinicalfeature,follow-up

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Synthesis and biological evaluation of 3-amino-2-pyrones as selective cyclooxygenase-1(COX-1) inhibitors

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Chinese Chemical Letters 2013年第2期24卷 120-122页

作者： Xue-Ping Chu Qing-Fa Zhou Shen Zhao fei-fei ge Mian Fu Jia-Peng Chen Tao Lu Department of Organic Chemistry China Pharmaceutical University

Received 2 December 2012 Received in revised form 21 December 2012 Accepted 27 December 2012 Available online 4 February 2013

关键词： 3-Amino-2-pyroneBiological activityCOX-l-selective inhibitorSynthesis

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Cyclooxygenase-2 inhibitor inhibits hippocampal synaptic reorganization in pilocarpine-induced status epilepticus rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第11期9卷 903-915页

作者： Hai-ju ZHANG Ruo-peng SUN ge-fei LEI Lu YANG Chun-xi LIU Department of Pediatrics Renmin Hospital of Wuhan University Wuhan 430060 China Department of Pediatrics Qilu Hospital of Shandong University Jinan 250012 China Key Laboratory of Cardiovascular Remodeling and Function Research Qilu Hospital of Shandong University Jinan 250012 China

Objective： To examine modulations caused by cyclooxygenase-2 （COX-2） inhibitors on altered microenvironments and overbalanced neurotransmitters in pilocarpine-induced epileptic status rats and to investigate possible mechanisms. Methods： Celecoxib （a COX-2 inhibitor） was administered 45 min prior to pilocarpine administration. The effects of COX-2 inhibitors on mlPSCs （miniature GABAergic inhibitory postsynaptic currents） of CA3 pyramidal cells in the hippocampus were recorded. Expressions of COX-2, c-Fos, newly generated neurons, and activated microgliosis were analyzed by immunohistochemistry, and expressions of c^-subunit of y-amino butyric acid （GABAA） receptors and mitogen-activated protein kinase/extracellular signal-regulated protein kinase （MAPK/ERK） activity were detected by Western blotting. Results： Pretreatment with celecoxib showed protection against pilocarpine-induced seizures. Celecoxib prevented microglia activation in the hilus and inhibited the abnormal neurogenesis and astrogliosis in the hippocampus by inhibiting MAPK/ERK activity and c-Fos transcription. Celecoxib also up-regulated the expression of GABAA receptors. NS-398 （N-2-cyclohexyloxy-4-nitrophenyl-methanesulfonamide）, another COX-2 inhibitor, enhanced the frequency and decay time of mIPSCs. Conclusion： The COX-2 inhibitor celecoxib decreased neuronal excitability and prevented epileptogenesis in pilocarpine-induced status epilepticus rats. Celecoxib regulates synaptic reorganization by inhibiting astrogliosis and ectopic neurogenesis by attenuating MAPK/ERK signal activity, mediated by a GABAergic mechanism.

关键词： Epileptogenesis Cyclooxygenase-2 (COX-2) Neurogenesis Microglia 3 -amino butyric acid (GABA) c-Fos Mitogen-activated protein kinase/extracellular signal-regulated protein kinase (MAPK/ERK) Spontaneousrecurrent seizure

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Damage control surgery for severe pancreatic trauma

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Hepatobiliary & Pancreatic Diseases International 2007年第6期6卷 569-571页

作者： Wang, ge-fei Li, You-Sheng Li, Jie-Shou Nanjing Univ Sch Med Jinling Hosp Res Inst Gen Surg Nanjing 210002 Peoples R China

Pancreatic trauma as a challenge before and during explorative laparotomy is associated with multiple visceral injuries or critical conditions. Its optimal management remains *** current concept of damage control surg... 详细信息

关键词： Damage control surgery for severe pancreatic trauma

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Pesticide informatics expands the opportunity for structure-based molecular design and optimization

Advanced Agrochem

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Advanced Agrochem 2022年第2期1卷 139-147页

作者： Wei Zhao Yuan-qin Huang ge-fei Hao State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationResearch and Development Center for Fine ChemicalsGuizhou UniversityGuiyang550025PR China Key Laboratory of Pesticide&Chemical Biology Ministry of EducationCollege of ChemistryInternational Joint Research Center for Intelligent Biosensor Technology and HealthCentral China Normal UniversityWuhan430079PR China

The discovery process of pesticides is confronting more and more difficult obstacles,including the rising costs of materials and labor,which are costly and *** informatics brings an opportunity for structure-based molecular design and optimization,which could improve the efficiency of pesticides ***,there are still some problems in using informatics methods to improve the efficiency of pesticide ***,we provide a summary of databases and tools used in pesticide informatics,including those for target information search,virtual screening(VS),scaffold optimization,and pesticide-likeness ***,some successful cases of hit compound optimization utilizing the aforementioned approaches were *** hope this review can guide researchers choose appropriate techniques to increase the effectiveness of hit compounds identification and optimization.

关键词： Web resources Hit compounds identification Scaffold optimization Pesticide-likeness

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Alloy as advanced catalysts for electrocatalysis:From materials design to applications

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Chinese Chemical Letters 2024年第6期35卷 104-122页

作者： Pingfan Zhang Shihuan Hong Ning Song Zhonghui Han fei ge Gang Dai Hongjun Dong Chunmei Li Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Daqo Group Co.Ltd. Zhenjiang 212221China Key Laboratory of Groundwater Resources and Environment Ministry of EducationJilin Provincial Key Laboratory of Water Resource and EnvironmentCollege of New Energy and EnvironmentJilin UniversityChangchun 130021China

With the deep integration of electrochemical research with energy,environment,catalysis,and other fields,more and more new electrochemical catalytic reactions have entered our research *** catalysts have recently emerged as a new type of nanomaterial due to the rapid development of kinetic controlled synthesis *** materials offer several advantages over monometallic catalysts,including larger element combinations,complex geometries,bifunctional sites,and reduced use of precious *** paper provides a review of alloy electrocatalysts that are designed and prepared specifically for electrocatalytic *** use of alloy materials in electrocatalyst design is also discussed,highlighting their widespread application in this ***,various synthesis methods and synthesis mechanisms are systematically *** that,by correlating the properties of materials with the structure,relevant strategies toward advanced alloy electrocatalysts including composition regulation,size,morphology,surface engineering,defect engineering,interface engineering and strain engineering are *** addition,the important electrocatalytic applications and mechanisms of alloy electrocatalysts are described and ***,the current challenges and prospects regarding the development of alloy nanomaterials are *** review serves as a springboard from a fundamental understanding of alloy structural dynamics to design and various applications of electrocatalysts,particularly in energy and environmental sustainability.

关键词： Alloy Nanomaterial Electrocatalyst Materials design Electrocatalysis

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Breaking ground:ABLs and TMKs as co-receptors to perceive extracellular auxin

Advanced Agrochem

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Advanced Agrochem 2024年第1期3卷 6-8页

作者： Guan-Zhu Wang Xue Wu ge-fei Hao National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for Research and Development of Fine Chemicals Guizhou UniversityGuiyang550025China National Key Laboratory of Green Pesticide College of ChemistryCentral China Normal UniversityWuhan430079China

Auxin is an important phytohormone that regulates a string of vital rapid responses,and its signaling perception mechanism has been one of the hot spots of *** has been shown that the ABP1/TMKs module is involved in regulating extracellular auxin signaling,however,the role of ABP1 as an auxin receptor is highly ***,the mechanism of quintessential TMKs sense extracellular auxin remains ***,a study identified two new auxin-binding proteins,ABL1 and ABL2,which directly interact with TMKs to perceive apoplast *** groundbreaking research unravels the mystery surrounding how plants perceive extracellular auxin signals.

关键词： extracellular ground string

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