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174 results on '"Yu, Chengzhi"'

2. Innovative Design and Development of Chinese Sanitary Ceramics from the Perspective of Humanistic Care

Author

Yu, Chengzhi, Kong, Rui, Sang, Shuguang, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Sedon, Mohd Fauzi bin, editor, Khan, Intakhab Alam, editor, Birkök, Mehmet Cüneyt, editor, and Chan, KinSun, editor

Published
2024
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11. FOXL2regulates RhoAexpression to change actin cytoskeleton rearrangement in granulosa cells of chicken pre-ovulatory follicles†

Author

Li, Xuelian, Du, Hongting, Zhou, Haobo, Huang, Ying, Tang, Shuixin, Yu, Chengzhi, Guo, Yan, Luo, Wei, and Gong, Yanzhang

Abstract

Forkhead box L2 (FOXL2) is an indispensable key regulator of female follicular development, and it plays important roles in the morphogenesis, proliferation, and differentiation of follicle granulosa cells, such as establishing normal estradiol signaling and regulating steroid hormone synthesis. Nevertheless, the effects of FOXL2on granulosa cell morphology and the underlying mechanism remain unknown. Using FOXL2 ChIP-seq analysis, we found that FOXL2 target genes were significantly enriched in the actin cytoskeleton-related pathways. We confirmed that FOXL2inhibited the expression of RhoA, a key gene for actin cytoskeleton rearrangement, by binding to TCATCCATCTCT in RhoApromoter region. In addition, FOXL2overexpression in granulosa cells induced the depolymerization of F-actin and disordered the actin filaments, resulting in a slowdown in the expansion of granulosa cells, while FOXL2silencing inhibited F-actin depolymerization and stabilized the actin filaments, thereby accelerating granulosa cell expansion. RhoA/ROCK pathway inhibitor Y-27632 exhibited similar effects to FOXL2overexpression, even reversed the actin polymerization in FOXL2silencing granulosa cells. This study revealed for the first time that FOXL2regulated granulosa cell actin cytoskeleton by RhoA/ROCK pathway, thus affecting granulosa cell expansion. Our findings provide new insights for constructing the regulatory network of FOXL2and propose a potential mechanism for facilitating rapid follicle expansion, thereby laying a foundation for further understanding follicular development.FOXL2regulates actin cytoskeleton rearrangement of granulosa cells (GCs) through RhoA/ROCK pathway, thus affecting GC expansion of pre-ovulatory follicles in chicken.Graphical Abstract

Published
2024
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24. Structural basis for intrinsic transcription termination

Author

You, Linlin, primary, Omollo, Expery, additional, Yu, Chengzhi, additional, Mooney, Rachel A., additional, Shi, Jing, additional, Shen, Liqiang, additional, Wu, Xiaoxian, additional, Wen, Aijia, additional, He, Dingwei, additional, Zeng, Yuan, additional, Feng, Yu, additional, Landick, Robert, additional, and Zhang, Yu, additional

Published
2022
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26. Activation of Peracetic Acid with CuFe 2 O 4 for Rhodamine B Degradation: Activation by Cu and the Contribution of Acetylperoxyl Radicals.

Author

Yu, Chengzhi, Zheng, Libin, Hong, Yongyuan, Chen, Jiabin, Gao, Feng, Zhang, Yalei, Zhou, Xuefei, and Yang, Libin

Subjects
*PERACETIC acid, *RHODAMINE B, *RADICALS (Chemistry), *POLLUTANTS, *COPPER ferrite, CATALYSTS recycling
Abstract

Advanced oxidation processes (AOPs) demonstrate great micropollutant degradation efficiency. In this study, CuFe2O4 was successfully used to activate peracetic acid (PAA) to remove Rhodamine B. Acetyl(per)oxyl radicals were the dominant species in this novel system. The addition of 2,4-hexadiene (2,4-HD) and Methanol (MeOH) significantly inhibited the degradation efficiency of Rhodamine B. The ≡Cu2+/≡Cu+ redox cycle dominated PAA activation, thereby producing organic radicals (R-O˙) including CH3C(O)O˙ and CH3C(O)OO˙, which accounted for the degradation of Rhodamine B. Increasing either the concentration of CuFe2O4 (0–100 mg/L) or PAA (10–100 mg/L) promoted the removal efficiency of this potent system. In addition, weakly acid to weakly alkali pH conditions (6–8) were suitable for pollutant removal. The addition of Humid acid (HA), HCO3−, and a small amount of Cl− (10–100 mmol·L−1) slightly inhibited the degradation of Rhodamine B. However, degradation was accelerated by the inclusion of high concentrations (200 mmol·L−1) of Cl−. After four iterations of catalyst recycling, the degradation efficiency remained stable and no additional functional group characteristic peaks were observed. Taking into consideration the reaction conditions, interfering substances, system stability, and pollutant-removal efficiency, the CuFe2O4/PAA system demonstrated great potential for the degradation of Rhodamine B. [ABSTRACT FROM AUTHOR]

Published
2022
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28. Sludge granulation and microbial activity in a stable CANON process by DO controlling and operating parameter optimization

Author

Xiaolong Li, Xinying Zhang, You Liyan, Shaohong Zhao, Chen Meixiang, Zhang Limin, Dan Lin, Yu Chengzhi, and Weiliang Zhang

Subjects
Environmental Engineering, biology, Continuous operation, Chemistry, Biomedical Engineering, Bioengineering, Pulp and paper industry, biology.organism_classification, Granulation, chemistry.chemical_compound, Particle size, Autotroph, Nitrite, Aeration, Anaerobic exercise, Bacteria, Biotechnology
Abstract

We present a start-up method for complete autotrophic nitrogen removal via the nitrite (CANON) granular sludge process by controlling the DO concentration. More specifically, we initially increase the activity of anaerobic ammonia-oxidizing bacteria (AnAOB) and, subsequently, gradually increase the activity of ammonia oxidizing bacteria (AOB). The results indicate the optimum process parameters to be an 8 h reaction period and an aeration/non-aeration time ratio of 1.0 h/0.25 h. These conditions maintain a high activity for both AOB and AnAOB and are also conducive to sludge granulation. Following 64 days of continuous operation, the mean particle size of the sludge increased to 992 µm, while the proportion of granular sludge accounted for approximately 87.16%, and the proportion of sludge with a particle size ≥ 1000 µm was 36.66%. Both AOB and AnAOB became the dominant bacterial genera in the CANON reaction system, while nitrite-oxidizing bacteria were successfully discharged from the reaction system.

Published
2021

30. Successful Baylis-Hillman reaction of acrylamide with aromatic aldehydes

Author

Yu, Chengzhi and Hu, Longqin

Subjects
Chemistry, Organic -- Research, Acrylamide -- Physiological aspects, Aldehydes -- Physiological aspects, Aromatic compounds -- Physiological aspects, Catalysts -- Physiological aspects, Solution (Chemistry) -- Physiological aspects, Biological sciences, Chemistry
Abstract

Research has been conducted on the acrylamide and aromatic aldehydes. Results indicate that at the ambient temperature in the aqueous medium these compounds undergo the Baylis-Hillman reaction producing 3-hydroxy-2-methylenepropionamides in the presence of the 1,4-diazabicyclo[2,2,2]octane base catalyst.

Published
2002

31. Efficient Baylis-Hillman reaction using stoichiometric base catalyst and an aqueous medium

Author

Yu, Chengzhi, Liu, Bin, and Hu, Longqin

Subjects
Chemistry, Organic -- Research, Catalysts -- Physiological aspects, Solvents -- Physiological aspects, Stoichiometry -- Analysis, Biological sciences, Chemistry
Abstract

Research has been conducted on the conditions developed during the Baylis-Hillman reaction. The use of the stoichiometric base catalyst and the aqueous medium in investigating the problems associated with the Baylis-Hillman reaction such as low reaction yields and long reaction time is described.

Published
2001

32. Samarium(O) and 1,1'-dioctyl-4,4'-bipyridinium dibromide: a novel electron-transfer system for the chemoselective reduction of aromatic nitro groups

Author

Yu, Chengzhi, Liu, Bin, and Hu, Longqin

Subjects
Organic compounds -- Research, Chemical reactions -- Analysis, Samarium -- Usage, Aromatic amines -- Research, Biological sciences, Chemistry
Abstract

An electron transfer system involving a combination of samarium(O) and 1,1'-dioctyl-4.4'-bipyridinium dibromide is described. The method can be used for chemoselective reduction of aromatic nitro compounds and is superior to the one that employs samarium(II) iodide in terms of the enhanced reduction potential of samarium(O).

Published
2001

42. Differential solvation and tautomer stability of a model base pair within the minor and major grooves of DNA

Author

Dupradeau, Francois-Yves, Case, David A., Yu, Chengzhi, Jimenez, Ralph, and Romesberg, Floyd E.

Subjects
Solvation -- Analysis, Hydrogen bonding -- Structure, Chemistry
Abstract

A 2-(2'-hydroxyphenyl)-benzoxazole (HBO) is developed as a model base pair to study how the different environments within DNA affect tautomerization, as nucleoside-bearing HBO may be synthesized such that when incorporated into DNA, the enol moiety of the model base pair is positioned in either the major or minor groove. When HBO is incorporated in DNA such that the enol moiety is positioned in the minor groove, the enol tautomer is preferentially stabilized.

Published
2005

48. Performance and microbial community structures of hydrolysis acidification process treating azo and anthraquinone dyes in different stages.

Author

Liu, Na, Xie, Xuehui, Yang, Bo, Zhang, Qingyun, Yu, Chengzhi, Zheng, Xiulin, Xu, Leyi, Li, Ran, and Liu, Jianshe

Subjects
HYDROLYSIS, AZO dyes, ANTHRAQUINONE dyes, WASTEWATER treatment, TEXTILE industry
Abstract

In this study, performance of hydrolysis acidification process treating simulated dyeing wastewater containing azo and anthraquinone dyes in different stages was investigated. The decolorization ratio, COD removal ratio, BOD/COD value, and volatile fatty acids (VFAs) production were almost better in stage 1 than that in stage 2. Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) confirmed the biodegradation of Reactive Black 5 (RB5) and Remazol Brilliant Blue R (RBBR) in hydrolysis acidification process. Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analyses revealed that significant difference of microbial community structures existed in stage 1 and 2. The dominant species in stage 1 was related to Bacteroidetes group, while the dominant species in stage 2 was related to Bacteroidetes and Firmicutes groups. From the results, it could be speculated that different dyes' structures might have significant influence on the existence and function of different bacterial species, which might supply information for bacteria screening and acclimation in the treatment of actual dyeing wastewater. [ABSTRACT FROM AUTHOR]

Published
2017
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49. Modulation of γ-Secretase Reduces β-Amyloid Deposition in a Transgenic Mouse Model of Alzheimer's Disease

Author

Kounnas, Maria Z., primary, Danks, Anne M., additional, Cheng, Soan, additional, Tyree, Curtis, additional, Ackerman, Elizabeth, additional, Zhang, Xulun, additional, Ahn, Kwangwook, additional, Nguyen, Phuong, additional, Comer, Dan, additional, Mao, Long, additional, Yu, Chengzhi, additional, Pleynet, David, additional, Digregorio, Paul J., additional, Velicelebi, Gonul, additional, Stauderman, Kenneth A., additional, Comer, William T., additional, Mobley, William C., additional, Li, Yue-Ming, additional, Sisodia, Sangram S., additional, Tanzi, Rudolph E., additional, and Wagner, Steven L., additional

Published
2010
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