http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cheng Qu,Wei Zhang,Fengqi Li,Guillaume Tetreau,Chen Luo,RanWang 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.2
Two invasive whitefly cryptic species, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), are the most invasive and notorious pests on diverse crops and have significantly impacted agricultural production systems globally. This circumstance emphasizes the need for a better approach for controlling these species. In this study, the lethal effect of six insecticides and the sublethal effects of dinotefuran on B. tabaci MEAM1 and MED were examined. Among the six insecticides tested, dinotefuran was the most toxic to both B. tabaci MEAM1 andMED adults with LC50 values of 5.54 mg/L and 6.01mg/L, respectively. After treating adults of the two important specieswith LC25 of 1.70 mg/L (MEAM1) and 2.12 mg/L (MED), the transgenerational effects of dinotefuran on survival, developmental duration, and fecundity of F1 generation of B. tabaciMEAM1 andMEDadultswere observed respectively, which increased the developmental time and decreased survival rates of nymph, pseudopupa and adult. The fecundity of tested femaleswas also reduced markedly. In summary, these results indicate that dinotefuran could be one excellent candidate that may effectively control two invasive whitefly populations.
LncRNA PVT1 influences breast cancer cells glycolysis through sponging miR-145-5p
Qu Huan,Li Xingxing,Chen Fei,Zhang Min,Lu Xun,Gu Yun,Lv Mingming,Lu Cheng 한국유전학회 2023 Genes & Genomics Vol.45 No.5
Background Long-non-coding RNA PVT1 (lncRNA PVT1) can be used as an oncogenic regulatory non-coding RNA (ncRNA) for many cancers. However, its function and mechanism in breast cancer (BRCA) are still not clearly elucidated. Objective We attempt to explain the mechanism of PVT1’s role in breast cancer from different perspectives. Methods We analyzed the expression of PVT1 and its correlation with the breast cancer related clinical data in the The Cancer Genome Atlas (TCGA) database. We used PVT1 overexpression and knockdown lentivirus to infect breast cancer MDA-MB-231 cell line for cell function verification, in vitro using CCK-8 to measure proliferation, flow cytometry to measure apoptosis, transwell test to measure invasion and migration ability, detecting cell extracellular acidification rate (ECAR) to assess glycolysis metabolism and explore the biological functions of PVT1 in breast cancer cells. Transcriptome sequencing was used to analyze the changes of related genes in cells after overexpression of PVT1. In vivo we used a xenograft model to study the effect of PVT1 on breast cancer. Results PVT1 was up-regulated in breast cancer tissues and was positively correlated with the clinical stage of breast cancer patients. Overexpression of PVT1 in vitro promoted cell proliferation, migration and invasion, and promoted tumor growth in vivo. Knockdown of PVT1 led to the opposite biological consequence. Further bioinformatics analysis showed that PVT1 changes the glycolysis metabolism of tumors through regulation of glycolysis-related genes. In addition, the expression of miR-145-5p is negatively correlated with PVT1. We consider the possibility of PVT1 promoting cell proliferation and metastasis by regulating the aerobic glucose metabolism in breast cancer cells through sponging the miR-145-5p. Conclusion Our results reveal a potential pathway for competing endogenous RNA to regulate breast cancer glucose metabolism. PVT1 regulates glycolysis related genes expression by competitively binding to endogenous miR-145-5p in breast cancer cells to change the metabolic phenotype. This may Provide new ideas for precise molecular therapy targets for breast cancer.
Kinetic modeling for chromatographic separation of cytosine monophosphate and uracil monophosphate
Haibin Qu,Yong Chen,Weixing Dai,Xuesong Liu,Yiyu Cheng 한국화학공학회 2006 Korean Journal of Chemical Engineering Vol.23 No.5
pharmaceutical industries. In this study, chromatographic separation of the two nucleotides CMP and UMP was sim-ulated by the equilibrium-dispersive (ED) model, and the adsorption isotherms in the ED model were determined bythe inverse method. Prediction performance of the model was validated under three diferent kinds of conditions andthe importance of selecting isotherms was discussed in detail. Excellent agreement was achieved with the experi-mental band profiles and the prediction of the ED model. The ED model with bi-Langmuir isotherm was especiallysuitable for simulating chromatographic separation of CMP and UMP. The error of prediction by the ED model with
Xinyan Qu,Yingying Song,Qingjun Li,Qi Xu,Yanru Li,Huimin Zhang,Xuemei Cheng,Charles R. Mackay,Quanbo Wang,Wei Liu 대한약학회 2024 Archives of Pharmacal Research Vol.47 No.3
Microbiota-derived catabolism of nutrients is closely related to ulcerative colitis (UC). The level of indole-3-acetic acid(IAA), a microbiota-dependent metabolite of tryptophan, was decreased signifi cantly in the feces of UC patients. Thus supplementationwith IAA could be a potential therapeutic method for ameliorating colitis. In this work, the protective eff ect ofsupplementation with IAA on dextran sulfate sodium (DSS)-induced colitis was evaluated, and the underlying mechanismwas elucidated. The results indicated that the administration of IAA signifi cantly relieved DSS-induced weight loss, reducedthe disease activity index (DAI), restored colon length, alleviated intestinal injury, and improved the intestinal tight junctionbarrier. Furthermore, IAA inhibited intestinal infl ammation by reducing the expression of proinfl ammatory cytokines andpromoting the production of IL-10 and TGF-β1. In addition, the ERK signaling pathway is an important mediator of variousphysiological processes including infl ammatory responses and is closely associated with the expression of IL-10. Notably,IAA treatment induced the activation of extracellular signal-regulated kinase (ERK), which is involved in the progressionof colitis, while the ERK inhibitor U0126 attenuated the benefi cial eff ects of IAA. In summary, IAA could attenuate theclinical symptoms of colitis, and the ERK signaling pathway was involved in the underlying mechanism. Supplementationwith IAA could be a potential option for preventing or ameliorating UC.
The research of traditional Chinese opera and theatrical stage on Chinese architectures
Yang Cheng,Yan Qu HONG KONG ACADEMY OF SOCIAL SCIENCES 2023 Journal of Social Science Development Research Vol.1 No.1
Traditional Chinese opera is an important part of Chinese culture, besides, it has long history and unique charm. However, with the rapid development of modern society, the development of the construction industry is also becoming increasingly prosperous. This paper aims to research the influence and role of traditional Chinese opera on modern architecture. By comparing and analyzing the correlation between opera and architecture, the research is found that the patterns, shapes, space divisions, stage effects and other elements in opera have certain reference and inspiration for modern architectural design and construction. By integrating traditional Chinese theaters with modern architecture, it can be provided new design concepts and directions to the architectural community, and allowing traditional culture and modern architecture to blend together to achieve a unique aesthetic effect. Therefore, the architectural design of in future, it should be paid more attention to the research and application of traditional Chinese opera and theatrical stage to modern architecture, besides, it promote the inheritance and development of our country's cultural traditions.
Wei Zhang,Cheng Qu,ChangqingMu,Fengqi Li,Chen Luo,Jinda Wang,RanWang 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.1
The Bemisia tabaci (Gennadius) cryptic species complex comprises very destructive insect pests for agricultural cropsworldwide. In China, the B. tabaciMED species (also known as biotype ‘Q’), has supplanted theMEAM1 species (biotype ‘B’) which is threatening agricultural production around the country. The new anthranilic diamide insecticide, cyantraniliprole, provides one novel step for themanagement of B. tabaci and the development of resistance to other insecticides. Ryanodine receptors of insect are the main target sites of the diamide insecticides. In this study, the full-length cDNA of a ryanodine receptor gene (BtRyR) was cloned and characterized from B. tabaci MED. The cDNAs of BtRyR contain a 15,369-bp open reading frame with encoding 5122 amino acids (GenBank ID: KY244091). BtRyR shares 76–83% identity with other insect RyR isoforms and 42–45% identity with vertebrate RyR isoforms. Spatial and temporal expression of BtRyR mRNA was at the highest relative level in pseudopupae and head, and at the lowest expression level in egg and abdomen. The expression levels of whole body BtRyR mRNAwere increased remarkably after insecticide-treatments of adults with cyantraniliprole at 0.01 to 1 mg/l. This structural and expression data on BtRyR provides the basis for further understanding the selective action of cyantraniliprole.
Shui Wang,Yixin Qu,Yizhen Du,Ping Zhang,Xiaowei Cheng 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.12
We studied the direct synthesis of 5-hydroxymethylfurfural (5-HMF) from cottonseed hull biomass underacid condition in one-pot. The influence of HCl dosage, reaction temperature and time, CrCl3·6H2O amount, and cotton-seed hull loading on the yield of 5-HMF was investigated. As a result, a 5-HMF yield up to 51% was obtained using 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) catalyzed with chromium (III) chloride at 130 oC for 2 h. The [Bmim]Cl/CrCl3·6H2O/HCl system was found to have high activity and selectivity for the dehydration of cellulose into 5-hydroxy-methylfurfural. This work provides a low cost, environment-friendly and energy-efficient process to directly convertraw biomass into bio-fuels and chemicals.