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Decomposition of alachlor by ozonation and its mechanism

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Journal of Environmental Sciences 2007年第7期19卷 769-775页

作者： li hai-yan QU Jiu-hui liU Hui-juan School of Environment of Energy Engineering Beifing University of Civil Engineering and Architecture Beijing 100044 China. State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Belting 100085 China.

Decomposition and corresponding mechanism of alachlor, an endocrine disruptor in water by ozonation were investigated. Results showed that alachlor could not be completely mineralized by ozone alone. Many intermediates and final products were formed during the process, including aromatic compounds, aliphatic carboxylic acids, and inorganic ions. In evoluting these products, some of them with weak polarity were qualitatively identified by GC-MS. The information of inorganic ions suggested that the dechlorination was the first and the fastest step in the ozonation of alachlor.

关键词： alachlor ozonation decomposition mechanism

Preparation, Electrochemical Property and Application in Bulk-modified Electrode of Dawson-type Phospho-molybdate-doped Polypyrrole Composite Nanoparticles

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Chemical Research in Chinese Universities 2006年第5期22卷 556-559页

作者： WANG Xiu-li ZHAO hai-yan WANG Yi-fei Faculty of Chemistry and Chemical Engineering Bohai University Jinzhou 121000 P. R. China

A kind of inorganic-organic hybrid semiconductor composite nanoparticles： Dawson-type phosphomolybdate- doped polypyrrole （P2Mo18-PPy） was designed and prepared using microemulsion oxidation-polymerization at room temperature and characterized by TEM and IR. The P2Mo18-PPy was used as a bulk-modifier to fabricate a chemically modified carbon paste electrode（CPE） by direct mixing, which represents the example of polyoxometalates（ POMs）- doped semiconductor polymer nanoparticles modified electrode. Both the advantage of POMs-doped polymer and the surface-renewal property of the CPE were fully utilized. The electrochemical behavior of the P2Mo18-PPY bulk-modified CPE（P2Mo18-PPy-CPE） was investigated with cyclic voltammetry. Three couples of reversible redox peaks were observed in the range from ＋ 800 to 0 mV, which corresponded to the reduction and oxidation through two-, four- and six-electron processes, respectively. The P2 Mo18-PPY-CPE showed a high electrocatalytic activity for the reduction of nitrite, which expanded the application of POMs-doped semiconductor polymer nanoparticles.

关键词： Dawson-type phosphomolybdate Polypyrrole Composite nanoparticles Bulk-modified Carbon paste electrode Electrocatalysis

Primary hypertension in a postoperative paraganglioma patient:A case report

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World Journal of Clinical Cases 2022年第22期10卷 7931-7935页

作者： Jian-Hui Wei hai-li yan Department of Vasculocardiology Sanmenxia Central HospitalSanmenxia 472000Henan ProvinceChina

BACKGROUND Primary hypertension is a common clinical *** and paraganglioma is a rare cause of secondary *** diagnosis of the latter is still difficult,and the relationship between the two is not *** successful diagnosis of this case confirmed that standardized etiological investigation of secondary hypertension is necessary,contributes to the accurate diagnosis of rare diseases,and is conducive to the formulation or optimization of treatment *** shows an example of the coexistence of primary hypertension and secondary *** SUMMARY The patient was a 54-year-old male and was hospitalized with high blood pressure for 4 *** patient’s blood pressure was measured at 150/100 mmHg during physical examination 4 years ago and had no paroxysmal or persistent elevated blood pressure,no typical triad of headache,palpitation,and sweating,without postural *** taking nifedipine sustained release tablets intermittently,the blood pressure did not meet the *** examination revealed blood pressure of 180/120 *** was no abnormality in cardiopulmonary and abdominal *** results of blood and/or urinary catecholamines/metanephrine and normetanephrine before and after operation were *** examination revealed retinal arteriosclerosis in both *** was a history of paraganglioma diagnosed by pathology after retroperitoneal tumor resection,a family history of hypertension,and a history of passive *** clinical diagnosis was subclinical paraganglioma,primary hypertension,and hypertensive fundus *** patient’s blood pressure was regulated,blood lipid was reduced,and anti-inflammatory,and symptomatic support were *** treatment,the blood pressure was stable and up to standard without discomfort *** Subclinical paraganglioma and primary hypertension can *** holistic thinking in clinical practice is helpful to the early diagnosis of

关键词： Paraganglioma Primary hypertension Secondary hypertension Diagnosis and Differential diagnosis Genetic Case report

Allelopathy of decomposed maize straw products on three soilborn diseases of wheat and the analysis by GC-MS

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Journal of Integrative Agriculture 2015年第1期14卷 88-97页

作者： QI Yong-zhi ZHEN Wen-chao li hai-yan College of Plant Protection Agricultural University of Hebei

In northern China, the soil-born diseases of wheat have been getting more and more serious under a new farming system that returns maize straw to the field. In order to investigate the allelopathy of the decomposed maize straw products on three soil-born diseases of wheat, culture dish and pot experiments were conducted and the compounds in the products were identified by gas chromatography-mass spectrometry （GC-MS）. Culture dish experiments showed that the mycelial growth, sclerotia formation amount and total weight of Rhizoctonia cerealis were promoted at concentrations of 0.03, 0.06 and 0.12 g mL-1 and inhibited at concentration of 0.48 g mL-1 of the decomposed products. No significant effects were found of the product concentrations on average weight of the sclerotia. Mycelial growth of Gaeumannomyces graminis was promoted at almost all concentrations except the highest one. Mycelial growth and spore germination of Bipolaris sorokiniana were significantly inhibited by all concentrations of the decomposed products, with enhanced inhibition effects along with the increased concentrations. The length, number and dry weight of roots together with the root superoxide dismutase activity were promoted by the lowest concentration （0.03 g mL-1）, with a synthetic effect index of 0.012, and inhibited by other concentrations. The ion leakage of roots was increased and the root peroxidase activity of roots was lowered by all the treatments. Pot experiments revealed that occurrence of the sharp eyespot was reduced by 0.03 and 0.06 g mL-1 of decomposed products after irrigation. However, the incidence rates and disease indexes were significantly increased by 0.12, 0.24 and 0.48 g mL-1 of decomposed products. The results indicated that incidence rates and disease indexes of the take-all were significantly promoted after being irrigated with the decomposed products, while occurrences of the common rot didn＇t change, significantly. GC-MS results showed that the compounds of the d

关键词： wheat soil-born disease maize straw decomposed products allelopathy GC-MS

Norditerpenoid Alkaloids from Aconitum spicatum Stapf

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Journal of Integrative Plant Biology 2006年第3期48卷 364-369页

作者： li-Ming Gao hai-yan yan yang-Qing He Xiao-Mei Wei Department of Chemistry Key Laboratory of Polymer Materials of Gansu Province Northwest Normal University Lanzhou 730070 China

To search for pharmacologically and structurally interesting substances from traditional Chinese medicines, we Investigated the chemical compounds of Aconitum spicatum Stapf. Two new nordlterpenold alkaloids, namely spicatlne A （compound 1） and splcatine B （compound 2）, as well as 11 known norditerpenoid alkaloids were Isolated from the CHCIs portion of the 90% ethanol extract of the roots of A. spicatum. The structures of the alkaloids were characterized on the basis of their spectral data. One of the Isolated compounds showed significant cytotoxic activities （IC50 values 〈 200μmol/l.） against the HL-60 cell line.

关键词： Aconitum spicatum cytotoxic activity norditerpenoid alkaloids spicatine A spicatine B.

Physiological and transcriptomic analyses of roots from Malus sieversii under drought stress

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Journal of Integrative Agriculture 2019年第6期18卷 1280-1294页

作者： GENG Da-li LU li-yuan yan Ming-jia SHEN Xiao-xia JIANG li-juan li hai-yan WANG li-ping yan yan XU Ji-di li Cui-ying YU Jian-tao MA Feng-wang GUAN Qing-mei State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F UniversityYangling 712100P.R.China College of Information Engineering Northwest A&F UniversityYangling 712100P.R.China

Water deficit is one of the main limiting factors for apple growth and *** architecture plays an important role in drought tolerance of ***,little is known about the molecular basis of root system in apple trees under *** this study,we compared root morphology of two widely used rootstocks of apple(R3 and Malus sieversii)under *** results suggested that *** is more tolerant to drought than R3,since *** had a higher ratio of root to shoot as well as root hydraulic conductivity under long-term drought *** then performed whole-genome transcriptomic analysis to figure out the molecular basis of root responses in *** under *** was found that genes involved in transcription regulation,signaling or biosynthesis of hormones,and oxidative stress were differentially expressed under *** with the gene expression profile,roots of *** had higher activities of peroxidase(POD)and superoxide dismutase(SOD)under drought,as well as higher content of abscisic acid(ABA)and lower content of *** together,our results revealed the physiological and transcriptomic analyses of *** roots in response to drought.

关键词： Malus sieversii root architecture drought stress RNA-seq

Effect of interrupted endogenous BMP/Smad signaling on growth and steroidogenesis of porcine granulosa cells

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第9期11卷 719-727页

作者： Wei WANG li WANG Xin-xiu li Xia CHEN hai-yan ZHANG Yu HE Jing-jing WANG Yong-yan ZHAO Bao-le ZHANG Yin-xue XU College of Animal Science and Technology Nanjing Agricultural University Nanjing 210095 China

Bone morphogenetic proteins(BMPs) play a critical role in the growth and steroidogenesis of granulosa cells(GCs).BMP signals act through membrane-bound heteromeric serine/threonine kinase *** ligand binding,BMPs activate intracellular Smad proteins and regulate growth and apoptosis in various cell *** objective of this study was to demonstrate the effects of BMP/Smad signal on growth and steroidogenesis of porcine GCs.A strategy of RNA interference(RNAi)-mediated 'gene silencing' of Smad4,a core molecule mediating the intracellular BMP/Smad signal transduction pathways,was used to interrupt endogenous BMP/Smad *** indicate that Smad4-small interfering RNA(siRNA) caused specific inhibition of Smad4 mRNA and protein expression after *** endogenous BMP/Smad signaling significantly inhibited growth,and induced apoptosis of porcine GCs,while decreasing estradiol *** addition,interrupted BMP/Smad signaling significantly(Plin D2,CDK4,Bcl-2,and *** findings provide new insights into how BMP/Smad signaling regulates the growth and steroidogenesis of porcine GCs.

关键词： Porcine granulosa cells Bone morphogenetic protein(BMP)/Smad Smad4 RNA interference(RNAi) Growth Steroidogenesis

One Pillared Layered Zn(Ⅱ) Coordination Compound Based on 2,6-Naphthalenedicarboxylic Acid: Synthesis, Structure and Luminescent Property

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Chinese Journal of Structural Chemistry 2019年第5期38卷 761-768,669页

作者： li Ya-Min WU Ying-Ying li hai-yan ZHAO Xiao-Wei JIN lin-Yu DANG Dong-Bin Henan Key Laboratory of Polyoxometalate Institute of Molecular and Crystal Engineering College of Chemistry and Chemical EngineeringHenan University

One new pillared layered zinc hydroxide {Zn4（OH）6（ndc）·2（H2 O）}n,（H2 ndc =2,6-na-phthalenedicarboxylic acid） has been achieved under hydrothermal conditions by using2,6-na-phthalenedicarboxylic acid, 2,4-diami-6-phenyl-1,3,5-triazine as well as Zn（OAc）2·2 H2 O,and structurally characterized by X-ray single-crystal diffraction, IR spectra, elemental analysis,powder X-ray diffraction（PXRD） and thermogravimetric analysis（TGA）. The X-ray single-crystal diffraction proves that the title compound is in monoclinic system, space group P21/c with a =16.362（8）, b = 9.324（5）, c = 5.364（3） ?, β = 99.081（9）°, V = 808.1（7） ?3, Dc = 2.522 g/cm3, Mr =613.73, Z = 2, F（000） = 608, μ = 5.935 mm-1, GOOF = 1.050, R = 0.0469 and wR（Ⅰ > 2σ（Ⅰ）） =0.1291. In the title compound, the tetrahedral and octahedral zinc atoms are connected by μ3-OH groups to form zinc hydroxide inorganic layers extending parallel to the bc-plane. The adjacent layers are pillared by the connection of Zn2 atoms with ndc2-ligands to construct a three-dimensional（3D） structure; meanwhile, the interactions of five hydrogen bonds make the 3D network structure more stable. Furthermore, the title compound exhibits luminescent property at solid state.

关键词： pillared layer zinc hydroxide naphthalenedicarboxylic acid luminescent property

Defining Acupuncture-Moxibustion：A Delphi Study Protocol

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Chinese Journal of Integrative Medicine 2018年第4期24卷 260-264页

作者： liU Bao-yan yanG Xing-yue WU Xiao-dong liU Jia liU yan liANG Feng-xia JIA Wen GANG Wei-juan TONG Yuan-yuan yanG Feng li hai-yan LEI Lei JIA li-rong SUN Yu-jie China Academy of Chinese Medical Sciences Beijing(100700) China Beijing University of Chinese Medicine Beijing (100029) China Institute of Acupuncture and Moxibustion China Academy of Chinese Medical Sciences Beijing (100700) China Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical Sciences Beijing (100700) China College of Acupuncture and Orthopedics Hubei University of Chinese Medicine Wuhan (430065) China Institute of Information on Traditional Chinese Medicine China Academy of Chinese Medical Sciences Beijing (100700) China Research Center of Experimental Acupuncture Science Tianjin University of Traditional Chinese Medicine Tianjin (300193) China

Background： With the worldwide use and modern development of acupuncture-moxibustion, there is disagreement on its basic definition. There has been an obstacle for clinical practice, research, and legislation. Considering this challenge, the World Federation of Acupuncture-Moxibustion Societies proposes to develop the definition and basic scope of acupuncture-moxibustion with a Delphi study. Methods： A reactive Delphi method will be used to ask a group of experts to rate the relevance and clarity of a predesigned initial item list. This list was generated by the steering committee through a literature review and group discussion. Forty experts will be selected from many disciplines and continents to ensure appropriate representation. Predefined rules will be applied to modify the items until a consensus is achieved. After achieving the consensus on all items through the survey round, the steering committee will form the definition and basic scope of acupuncture-moxibustion by organizing a literal statement with a detailed explanation.

关键词： acupuncture-moxibustion definition scope Delphi method study protocol