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Adamantiades-Behcet's disease-complicated gastroenteropathy

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World Journal of Gastroenterology 2012年第7期18卷 609-615页

作者： qing-jun wu Feng-Chun Zhang Xuan Zhang Feng-Chun Zhang Xuan ZhangDepartmentof RheumatologyPeking Union Medical College HospitalPe-king Union Medical CollegeChinese Academy of Medical Sci-encesBeijing 100730China

Adamantiades-Behcet's disease (ABD) is a chronic,relapsing,systemic vasculitis of unknown *** is more prevalent in populations along the ancient Silk Road from Eastern Asia to the Mediterranean Basin,and most frequently affects young adults between the second and fourth decades of ***-complicated gastroenteropathy is a significant cause of morbidity and mortality,with abdominal pain as the most common *** ileocecal region is affected predominantly,with ulcerations that may lead to penetration and/or perforation,whereas other parts of the gastrointestinal system including the esophagus and stomach can also be *** is useful to locate the site and extent of the lesions,and tissue biopsy is often warranted to examine the histopathology that is often suggestive of underlying vasculitis of small veins/venules or,alternatively in some cases,nonspecific *** wall thickening is the most common finding on computed tomography *** is largely empirical since well-controlled studies are difficult to conduct due to the heterogeneity of the disease,and the unpredictable course with exacerbation and *** with or without other immunosuppressive drugs,such as cyclophosphamide,azathioprine,sulfasalazine,tumor necrosis factor α antagonist or thalidomide should be applied before surgery,except in emergency.

关键词： Adamantiades-Behcet's disease Gastro-enteropathy Ulceration Vasculitis

Effects of abamectin selection on the genetic differentiation within Plutella xylostella （Lepidoptera： Plutellidae） based on amplified fragment length polymorphism

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Insect Science 2010年第4期17卷 353-360页

作者： Xiao-Mao Zhou qing-jun wu You-jun Zhang Lian-Yang Bai Xiong-Ying Huang Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing Department of Pesticide Science Hunan Agricultural University Changsha China

Diamondback moth, Plutella xylostella （L.） is one of the most serious insect pests for its remarkable ability to develop resistance to virtually every insecticide that has been used against it. In the present study, amplified fragment length poly- morphism （AFLP） is used to study the genetic differentiation as well as the effects of abamectin-selection on population genetic differentiation for P. xylostella. A dendrogram was constructed from the matrix of genetic distances using the STATISTICA software （Version 4.5） and unweighted pair-group method with arithmetic averages （UPGMA）. The data demonstrated that compared to the susceptible strain （ABM-s）, the heterozy- gosity in the abamectin-resistant strain （ABM-r） decreased with the increased selection pressure and resistant level. When the resistance ratio was below 4.3, there was no sig- nificant differentiation at the genome DNA level. When the resistance ratio reached 5.8, a fairly significant differentiation began to appear, and when the resistance ratio reached and exceeded 8.1, there appeared a significant genetic differentiation. The results suggest that abamectin selection is associated with increased genetic polymorphism in P. xylostella.

关键词： abamectin resistance AFLP genetic differentiation Plutella xylostella

Preparation of flexible rubber composites with high contents of tungsten powders for gamma radiation shielding

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Rare Metals 2022年第7期41卷 2243-2248页

作者： Xiang-Rong Xu jun-qing wu Jian Xu Feng Liu An Xie jun-Liang Liu Ming Zhang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Environmental Engineering Center China Nuclear Power Research Institute Co.LtdShenzhen 518034China

To prepare tungsten/rubber composites with good gamma-ray shielding performances and fine mechanical properties,a composite surface modifier is employed to make surface modification of the tungsten powders.

关键词： composites composite rubber

Genome-wide analysis of odorant-binding proteins and chemosensory proteins in the sweet potato whitefly, Bemisia tabaci

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Insect Science 2019年第4期26卷 620-634页

作者： Yang Zeng Yu-Ting Yang qing-jun wu Shao-Li Wang Wen Xie You-jun Zhang Department of Plant Protection Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China Department of Agriculture of Yangtze University Jingzhou Hubei Province China

Odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) of insects are thought to play roles in olfactory recognition affecting host choice, copulation, reproduction and other behaviors. Previous descriptions of OBPs and CSPs in the whitefly Bemisia tabaci often provided no or incomplete genetic information. In this study, we present a genome-wide and transcriptome-wide investigation of the OBPs and CSPs in B. tabaci MEAMl (Middle East-Asia Minorl species). Eight OBP and 19 CSP genes were identified that covered all previous sequences. Phylogenetic analyses showed that the CSP genes had a lineage-specific expansion (BtabBCSP人 BtabBCSP3, BtabBCSPl3, BtabBCSPl 7, BtabBCSP18 and BtabBCSP 19). Expression profiling of OBPs and CSPs by transcriptome sequencing and quantitative real-time polymerase chain reaction (qPCR) revealed that expression patterns differed among developmental stages of B. tabaci MEAM 1. Five OBP genes and 11 CSP genes significantly differed between males and females;four of the 19 CSP genes were highly expressed in adults, while two were highly expressed in nymphs. The expression profiles of the OBP and CSP genes in different tissues of B. tabaci MEAM1 adults were analyzed by qPCR. Four OBP genes found in B. tabaci MEAM 1 were highly expressed in the head. Conversely, only two CSPs were enriched in the head, while the other six CSPs were specifically expressed in other tissues. Our results provide a foundation for future research on OBPs and CSPs in B. tabaci.

关键词： Bemisia tabaci CSPs expression patterns genome-wide identification OBPs phylogenetic

Does exposure to computers affect the routine parameters of semen quality?

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Asian Journal of Andrology 2005年第3期7卷 263-266页

作者： Yue-Lian Sun Wei-Jin Zhou jun-qing wu Er-Sheng Gao Shanghai Institute of Planned Parenthood Research and National Laboratory of Contraceptives and Devices Research Shanghai 200032 China

Aim： To assess whether exposure to computers harms the semen quality of healthy young men. Methods： A total of 178 subjects were recruited from two maternity and children healthcare centers in Shanghai, 91 with a history of exposure to computers （i.e., exposure for 20 h or more per week in the last 2 years） and 87 persons to act as control （no or little exposure to computers）. Data on the history of exposure to computers and other characteristics were obtained by means of a structured questionnaire interview. Semen samples were collected by masturbation in the place where the semen samples were analyzed. Results： No differences in the distribution of the semen parameters （semen volume, sperm density, percentage of progressive sperm, sperm viability and percentage of normal form sperm） were found between the exposed group and the control group. Exposure to computers was not found to be a risk factor for inferior semen quality after adjusting for potential confounders, including abstinence days, testicle size, occupation, history of exposure to toxic substances. Conclusion： The present study did not find that healthy： men exposed to computers had inferior semen quality. （Asian J Andro12005 Sep; 7： 263-266）

关键词： computer magnetization electromagnetization male reproduction semen analysis semen quality semen parameters

Management of diamondback moth, Plutella xylostella （Lepidoptera： Plutellidae） by mating disruption

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Insect Science 2012年第6期19卷 643-648页

作者： qing-jun wu Shu-Fa Zhang Jin-Liang Yao Bao-Yun Xu Shao-Li Wang You-jun Zhang Department of Plant Protection Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing Hebei North University ZhangjiakouHebei Province Plant Protection Station of Yanqing County BeijingChina

Field trials were conducted in China in 2008 and 2009 to evaluate the efficacy of mating disruption （MD） on diamondback moth, Plutella xylostella, in cabbage, Brassica oleracea var. capitata. Effectiveness was positively correlated with the MD dispenser density in the field. A density of 167 MD dispensers per ha produced an average population decrease of about 50% compared to the conventional-practice field. Significant fewer males were captured in pheromone-treated and conventional-practice fields than in the blank control field, but the difference was not significant between the pheromone-treated and conventional-practice fields. In addition, fewer eggs and larvae were observed in pheromone-treated fields. Our results suggest mating disruption coupled with minimal insecticidal supplements is a promising solution for resistance management and control of diamondback moth infestation.

关键词： mating disruption Plutella xylostella resistance management sexpheromone

Genome-wide identification and analysis of sulfatase and sulfatase modifying factor genes in Bemisia tabaci (Hemiptera: Aleyrodidae)

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Insect Science 2021年第6期28卷 1541-1552页

作者： jun Ren Zheng-Ke Peng Ze-Zhong Yang Li-Xia Tian Shao-Nan Liu Shao-Li Wang qing-jun wu Wen Xie You-jun Zhang Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBeijing100081China

The invasive pest whitefly(Bemisia tabaci)is a complex species,of which Middle East-Minor Asia 1(MEAM1)and Mediterranean(MED)are the two most damaging *** research showed that cabbage is frequently infested with MEAM1 but seldomly with MED,and this difference in performance is associated with glucosi-nolate(GS)*** insects can modify GS using glucosinolate sulfatase(SULF),the activity of which is regulated by sulfatase modifying factor 1(SUMF1);therefore,to increase our understanding of different performances of MEAM1 and MED on cabbage plants,we identified and compared nine putative SULFs and one SUMF in MEAM1 and *** found that the lengths of two genes,BtSulf2 and BtSulf4,differed between MEAM1 and *** messenger RNA levels of BtSulf4 increased more than 20-fold after MEAMl and MED adults were exposed to GS,but BtSulJ2 expression was only induced by GS in *** of BtSulf2 and BtSulf4 in MEAM1 resulted in a substantial increase in the mortality of GS-treated adults but not in *** results indicate that differences in BtSulJ2 and BtSulf4 sequences and/or expression may explain why MEAM1 performs better than MED on *** results provide a basis for future functional research on SULF and SUMF in ***.

关键词： Bemisia tabaci cabbage glucosinolates(GS) sulfatase(SULF) sulfatase modifying factor 1(SUMF 1)

Do Ureaplasma urealyticum infections in the genital tract affect semen quality?

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Asian Journal of Andrology 2006年第5期8卷 562-568页

作者： Yan Wang Cui-Ling Liang jun-qing wu Chen Xu Shi-Xiao Qin Er-Sheng Gao Shanghai Institute of Planned Parenthood Research Fudan University Shanghai 200032 China Department of Epidemiology Shanghai Institute of Planned Parenthood Research Shanghai 200032 China Institute of Population Studies East China Normal University Shanghai 200062 China Department of Histology and Embryology School of Medicine Shanghai Jiaotong University Shanghai 200025 China

Aim： To investigate the relationship between Ureaplasma urealyticum （UU） infection and semen quality. Methods： From 2001 to 2003, 346 eligible patients aged 20-45 years were invited from two hospitals in Shanghai, China, to participate in an investigation which included questionnaires about general and reproductive health, an external genital tract examination, UU culture and semen analysis. Multiple linear regression models were used to examine whether UU had a significant effect on semen quality after adjustment for confounding factors. Results： Findings suggested that UU infection was associated with higher semen viscosity and lower semen pH value. Sperm concentration was lower in UU positive subjects than that in UU negative subjects （54.04 × 10^6/mL vs.70.58 × 10^6/mL）. However, UU did not significantly affect other semen quality indexes. Conclusion： UU infection of the male genital tract could negatively influence semen quality.

关键词： Ureaplasma urealyticum semen quality sperm concentration seminal plasma questionnaire infection

Selective photosynthesis of imines from biomass-derived aldehydes over Ni/TiO_(2)

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Rare Metals 2024年第3期43卷 1116-1124页

作者： wu-Lin Li qing-qing Zhang Lin Dong Wen-jun Zhang Li-Li Lin Zu-Peng Chen Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing210037China Institute of Industrial Catalysis State Key Laboratory of Green Chemistry Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

Photocatalytic reductive amination of biomass-derived aldehydes is a desirable way to selectively upgrade biomass into value-added nitrogen-containing chemicals under mild ***,it is challenging to produce imines in high selectivity because of the undesirable side reactions caused by the activity of functional ***,we demonstrate the highly reactive and selective production of imines from biomass derived aldehydes via the photocatalytic reductive amination,using a defective TiO_(2)supported nickel *** employment of methanol as the hydrogen donor and ammonia solution as the nitrogen source avoids the use of high-pressure H_(2)and expensive amines,rendering the current catalytic process safe,economical,and environmentally *** depth investigations attribute the improved separation and transfer of photogenerated charge carriers to the presence of oxygen vacancies and decorated Ni nanoparticles,thereby accelerating the production of imines from benzaldehyde amination(conversion,95.8%;seleetivity,95.2%).Furthermore,the developed system could be easily translated to the photocatalytic conversions of various biomass derived aldehydes,which provided an example of a cost-effective and sustainable approach for the valorization of biomass derived feedstocks.

关键词： Photocatalysis Biomass derivatives Imines Reduction amination Heterogeneous catalyst