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Your search keyword '"Luo, Huijuan"' showing total 253 results
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253 results on '"Luo, Huijuan"'

25. The P2Y1 receptor in the colonic myenteric plexus of rats and its correlation with opioid-induced constipation.

Author

Zhao, Yuqiong, Luo, Huijuan, Ren, Xiaojie, Jia, Binghan, Li, Jinzhao, Wang, Lixin, and Li, Junping

Subjects
*CONSTIPATION, *RATS, *NEURONS, *GASTROINTESTINAL contents, *ANIMAL disease models
Abstract

This study was designed to explore the expression changes of P2Y1 receptors in the distal colonic myenteric layer of rats. An opioid induced constipation(OIC) rat model was generated by intraperitoneal (i.p) injection of loperamide. At 7 days post-treatment, the model rats were assessed by calculating the fecal water content and the gastrointestinal transit ratio. The immunofluorescence (IF)-based histochemical study was used to observe the distribution of P2Y1 receptors in the distal colonic myenteric plexus. Western blotting (WB) was performed to evaluate the expression changes of P2Y1 proteins in the myenteric layer, and the electrophysiological approaches were carried out to determine the regulatory roles of P2Y1 receptors on distal colonic motor function. IF showed that P2Y1 receptors are co-expressed MOR in the enteric nerve cells of the distal colonic myenteric plexus. Moreover, the WB revealed that the protein levels of P2Y1 were significantly decreased in the distal colonic myenteric layer of OIC rats. In vitro tension experiments exhibited that the P2Y1 receptor antagonist MRS2500 enhanced the spontaneous contraction amplitude, adding EM2 and β-FNA did not have any effect on MRS2500. Therefore, P2Y1 receptor expression could be associated with the occurrence of OIC in this rat model and the regulation of colonic motility by MOR may be related to the release of purine neurotransmitters such as ATP in the colonic nervous system. [ABSTRACT FROM AUTHOR]

Published
2024
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26. Denitrification performance of rare earth tailings-based catalysts

Author

Wang Zhenfeng, Huang Yanan, Luo Huijuan, Gong Zhijun, Zhang Kai, Li Na, and Wu Wenfei

Subjects
rare earth tailings, mineral modification, catalytic denitrification, Chemistry, QD1-999
Abstract

Rare earth tailings from the Bayan Obo mine are rich in rare earth, iron, and other catalytically active substances. In this study, Na2CO3 and Ca(OH)2 were mixed with rare earth tailings, roasted, and the tailings modified by HCl-citric acid leaching and pickling to prepare high-performance rare earth tailings-based denitrification catalysts. Denitrification performance tests show that, in the temperature range 700°C~900°C, the alkali and acid co-processed modified tailings sample gave the best catalytic denitrification performance. XRD, SEM, and H2-TPR analyses show that, compared with raw ore samples, Fe activity sites increased after alkali and acid co-treatment. Cracks and holes appeared on the surface of the sample, and the reduction temperature range was broadened. XPS analysis showed that Fe coexisted in the forms Fe2+ and Fe3+, and Ce in the forms Ce3+ and Ce4+. At a rare earth tailings microwave roasting temperature of 500°C, NO concentration of 500 ppm, CO/NO ratio 4:1, and reaction temperature of 900°C, the denitrification efficiency of the catalyst was optimal, at up to 96.2%. In this study, a relatively green and pollution-free method was used to prepare catalysts, which can provide reference for solving the problem of rare earth tailings accumulation.

Published
2019
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38. Detecting and monitoring bladder cancer with exfoliated cells in urine

Author

Li, Nannan, primary, Wang, Lei, additional, Liang, Han, additional, Lin, Cong, additional, Yi, Ji, additional, Yang, Qin, additional, Luo, Huijuan, additional, Luo, Tian, additional, Zhang, Liwei, additional, Li, Xiaojian, additional, Wu, Kui, additional, Li, Fuqiang, additional, and Li, Ningchen, additional

Published
2022
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49. β-patchoulene simultaneously ameliorated dextran sulfate sodium-induced colitis and secondary liver injury in mice via suppressing colonic leakage and flora imbalance

Author

Liu, Yuhong, primary, Wu, Jiazhen, additional, Chen, Liping, additional, Wu, Xue, additional, Gan, Yuxuan, additional, Xu, Nan, additional, Li, Minyao, additional, Luo, Huijuan, additional, Guan, Fengkun, additional, Su, Ziren, additional, Chen, Jiannan, additional, and Li, Yucui, additional

Published
2020
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