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Electroacupuncture Promotes Functional Recovery after Facial Nerve Injury in Rats by Regulating Autophagy via GDNF and PI3K/m TOR Signaling Pathway

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Chinese Journal of Integrative Medicine 2024年第3期30卷 251-259页

作者： yao jun-peng FENG Xiu-mei WANG Lu LI Yan-qiu ZHU Zi-yue YAN Xiang-yun YANG Yu-qing LI Ying ZHANG Wei Acupuncture and Tuina School Chengdu University of Traditional Chinese MedicineChengdu611137China Department of Rehabilitation Medicine Guanghan People’s HospitalGuanghanSichuan Province618399China Academic Affairs Office Chengdu University of Traditional Chinese MedicineChengdu611137China

Objective:To explore the mechanism of electroacupuncture(EA) in promoting recovery of the facial function with the involvement of autophagy,glial cell line-derived neurotrophic factor(GDNF),and phosphatidylinositol-3-kinase(PI3K)/mammalian target of rapamycin(mTOR) signaling ***:Seventy-two male Sprague-Dawley rats were randomly allocated into the control,sham-operated,facial nerve injury(FNI),EA,EA+3-methyladenine(3-MA),and EA+GDNF antagonist groups using a random number table,with 12 rats in each *** FNI rat model was established with facial nerve crushing *** intervention was conducted at Dicang(ST 4),Jiache(ST 6),Yifeng(SJ 17),and Hegu(LI 4) acupoints for 2 *** Simone’s 10-Point Scale was utilized to monitor the recovery of facial *** histopathological evaluation of facial nerves was performed using hematoxylin-eosin(HE) *** levels of Beclin-1,light chain 3(LC3),and P62 were detected by immunohistochemistry(IHC),immunofluorescence,and reverse transcriptionpolymerase chain reaction,***,IHC was also used to detect the levels of GDNF,Rai,PI3K,and ***:The facial functional scores were significantly increased in the EA group than the FNI group(P<0.05 or P<0.01).HE staining showed nerve axons and myelin sheaths,which were destroyed immediately after the injury,were recovered with EA *** expressions of Beclin-1 and LC3 were significantly elevated and the expression of P62 was markedly reduced in FNI rats(P<0.01);however,EA treatment reversed these abnormal changes(P<0.01).Meanwhile,EA stimulation significantly increased the levels of GDNF,Rai,PI3K,and mTOR(P<0.01).After exogenous administration with autophagy inhibitor 3-MA or GDNF antagonist,the repair effect of EA on facial function was attenuated(P<0.05 or P<0.01).Conclusions:EA could promote the recovery of facial function and repair the facial nerve damages in a rat model of *** may exert this neuroreparative effect through

关键词： electroacupuncture facial nerve injury autophagy glial cell line-derived neurotrophic factor phosphatidylinositol-3-kinase/mammalian target of rapamycin Chinese medicine

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针刺治疗功能性便秘的机制研究进展

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针刺研究 2024年第1期49卷 79-87页

作者：李艳秋姚俊鹏鄢香芸杨婉卿陈敏唐太春李瑛成都中医药大学针灸推拿学院成都610075 成都中医药大学附属医院成都610075

针刺治疗功能性便秘(FC)疗效确切,具有早期起效迅速、远期疗效稳定和整体性调节的特点。本文检索并总结近年来针刺治疗FC的相关文献,结果显示针刺能从促进肠道动力、调节肠道菌群、调节脑-肠轴、减轻肠道炎性反应、改善直肠低敏感性等... 详细信息

针刺治疗功能性便秘(FC)疗效确切,具有早期起效迅速、远期疗效稳定和整体性调节的特点。本文检索并总结近年来针刺治疗FC的相关文献,结果显示针刺能从促进肠道动力、调节肠道菌群、调节脑-肠轴、减轻肠道炎性反应、改善直肠低敏感性等多角度、多途径发挥作用。未来研究可深入挖掘针刺改善直肠低敏感性的机械传感机制、明确针刺调控的关键肠道菌属及代谢特征、探究不同作用机制间的网络关系,并阐明不同针刺治疗方案的效应差异机制,以期更好地优化临床治疗方案,提高针刺治疗FC的临床疗效。

关键词：功能性便秘针刺机制综述

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机械敏感性离子通道Piezo在消化系统疾病中的作用

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生物化学与生物物理进展 2024年第8期51卷 1883-1894页

作者：王司琦鄢香芸李艳秋罗芳丽姚俊鹏马沛涛侯雨君秦海燕石云舟李瑛成都中医药大学针灸推拿学院成都610075

Piezo蛋白是一种非选择性机械敏感性阳离子通道,能够响应压力、剪切应力等机械刺激,将机械信号转化为胞内的生物电活动,引起特定的生物学效应。在消化系统中,Piezo有助于维持消化吸收、物质代谢和免疫调节等正常生理活动,但Piezo的异常... 详细信息

Piezo蛋白是一种非选择性机械敏感性阳离子通道,能够响应压力、剪切应力等机械刺激,将机械信号转化为胞内的生物电活动,引起特定的生物学效应。在消化系统中,Piezo有助于维持消化吸收、物质代谢和免疫调节等正常生理活动,但Piezo的异常状态能够促进内脏高敏感、肠黏膜屏障功能障碍、免疫炎症等多个病理环节,参与消化系统疾病的发生发展。故本文对Piezo蛋白的结构、生理特性,及其在消化系统肿瘤、炎性疾病、纤维化疾病和功能性疾病中的作用进行综述,以期为消化系统疾病的机制研究和潜在治疗靶点的探索提供新的思路。

关键词： Piezo 消化系统疾病机械敏感性离子通道

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High Performance Humidity Sensor Based on Electrospun Zr_(0.9)Mg_(0.1)O_(2−δ) Nanofibers

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Chinese Physics Letters 2012年第11期29卷 27-30页

作者： SU Mei-Ying WANG Jing yao peng-jun DU Hai-Ying School of Electronic Science and Technology Dalian University of TechnologyDalian 116023 Institute of Microelectronics of Chinese Academy SciencesBeijing 100029 School of Educational Technology Shenyang Normal UniversityShenyang 110034 Department of Electromechanical Engineering&Information Dalian Nationalities UniversityDalian 116600

Zr_(0.9)Mg_(0.1)O_(2−δ) nanofibers and ZrO_(2) nanofibers are synthesized using electrospinning and the calcination *** nanofibers are characterized using x-ray diffraction(XRD),a field emission scanning electron microscope(FE-SEM),and a Brunauer–Emmett–Teller(BET)surface *** humidity sensing properties of Zr_(0.9)Mg_(0.1)O_(2−δ) nanofiber sensors are analyzed and compared with those of ZrO_(2) nanofiber *** Zr_(0.9)Mg_(0.1)O_(2−δ) nanofiber humidity sensors exhibit a broader humidity range of 11–97%relative humidity(RH),good linearity,small humidity hysteresis,and rapid response and recovery *** complex impedance plots of the Zr_(0.9)Mg_(0.1)O_(2−δ) sensor at different RHs are drawn,and the humidity sensing mechanism is discussed via an equivalent circuit.

关键词： fibers humidity fiber

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Magnetic nanoparticle-modified hollow double-shell SiC@C@FeCo with excellent electromagnetic wave absorption

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Nano Research 2024年第4期17卷 3164-3174页

作者： Guiyu peng Jintang Zhou Jiaqi Tao Weize Wang jun Liu junru yao Yijie Liu Zhengjun yao College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211100China Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics) Ministry of Industry and Information TechnologyNanjing 211100China

Integrated micro and nanostructures,heterogeneous components,defects,and interfaces is the way to develop high-performance microwave absorbing ***,there still needs to be more precise experimental routes and effective *** this work,by a continuous process of vacuum sintering,hydrothermal,and carbon thermal reduction,magnetic FeCo nanoparticles were successfully embedded on the hollow double-shell mesoporous SiC@C surface,thus solving the challenges of a single component loss *** hollow double-shell nanostructure introduces air to enhance impedance matching while significantly reducing the density of the *** extensive defects and heterogeneous grain boundaries effectively enhance the polarization loss *** magnetic loss mechanism introduced by the magnetic particles effectively improves the impedance matching properties of the *** synergy of these multiple advantages has enabled the SCFC_(2)-8(here SiC@C@FeCo is abbreviated to SCFC,2 represents the initial metal ion content,and 8 represents the hydrothermal time)sample to achieve an adequate absorption bandwidth of 6.09 GHz at 2.0 *** a minimum reflection loss of-60.56 dB,the absorption bandwidth can cover the entire C,X,and Ku bands by adjusting the matching thickness(1.3–4.0 mm).This work provides a valuable paradigm for the deeper exploitation of microwave absorption potential and guides the development of other high-performance materials.

关键词： SiC@C@FeCo(SCFC)composites core–shell hollow structure microwave absorption

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Numerical investigation of non-uniform temperature fields for proppant and fluid phases in supercritical CO_(2)fracturing

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Particuology 2024年第7期90卷 149-163页

作者： Boyu Liu jun yao Research Center of Multiphase Flow in Porous Media China University of Petroleum(East China)Qingdao 266000China

The non-uniform temperature distribution in supercritical CO_(2)(Sc-CO_(2))fracturing influences the density,viscosity,and volume expansion or shrinkage rate of Sc-CO_(2),impacting proppant *** study presents a coupled computational fluid dynamics-discrete element method and heat transfer model to examine the effects of proppant bed shape and the heat transfers of proppant-wall,proppant-fluid,and fluid-wall on the fluid and proppant temperature *** Sc-CO_(2)volume expansion is assessed under various temperature conditions by evaluating the volume-averaged Sc-CO_(2)*** factors,including proppant size,shape,thermal conductivity,concentration,temperature difference,and injection velocity,are carefully analyzed to elucidate their *** findings elucidate the existence of four distinct zones in the fluid temperature *** zone exhibits different magnitudes of temperature change under diverse conditions and undergoes dynamic transformations with the development of the proppant *** fluid-wall heat transfer and the fluid temperatures in Zones C and D are significantly subject to the fluid injection velocity(governing the heating duration),the temperature difference between fluid and formation(impacting the magnitude of heat flux),and the proppant bed shape(controlling the effective heating area).Additionally,the proppant-wall and proppant-fluid heat transfers determine the temperatures of both the proppant bed and the fluid within Zone B,showing a strong correlation with proppant thermal conductivity,proppant size,injection velocity,and temperature *** proposed coupled model provides valuable insights into the temperature distributions and flow behaviors of temperature-dependent fracturing fluids and proppants.

关键词： CFD-DEM Heat transfer Compressible fluid CO_(2)sequestration Proppant transport

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Ligation-assisted endoscopic submucosal resection following unroofing technique for small esophageal subepithelial lesions originating from the muscularis propria

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World Journal of Gastroenterology 2024年第32期30卷 3748-3754页

作者： Quan Lu Quan-Zhou peng jun yao Li-Sheng Wang De-Feng Li Department of Gastroenterology Shenzhen People’s HospitalShenzhen 518020Guangdong ProvinceChina Department of Pathology Shenzhen People’s HospitalShenzhen 518020Guangdong ProvinceChina Department of Gastroenterology Shenzhen People’s HospitalThe Second Clinical Medical CollegeJinan UniversityShenzhen 518020Guangdong ProvinceChina The First Affiliated Hospital Southern University of Science and TechnologyShenzhen 518020Guangdong ProvinceChina

BACKGROUND The majority of esophageal subepithelial lesions originating from the muscularis propria(SEL-MPs)are benign in nature,although a subset may exhibit malignant *** endoscopic resection techniques are time-consuming and lack efficacy for small *** To evaluate the efficacy and safety of ligation-assisted endoscopic submucosal resection(ESMR-L)following unroofing technique for small esophageal *** From January 2021 to September 2023,17 patients diagnosed with esophageal SEL-MPs underwent ESMR-L following unroofing technique at the endoscopy center of Shenzhen People’s *** of clinicopathological characteristics and clinical outcomes were collected and *** The mean age of the patients was 50.12±12.65 *** mean size of the tumors was 7.47±2.83 mm and all cases achieved en bloc resection *** average operation time was 12.2 minutes without any *** identified 2 Lesions(11.8%)as gastrointestinal stromal tumors at very low risk,12 Lesions(70.6%)as leiomyoma and 3 Lesions(17.6%)as smooth muscle *** recurrence was found during the mean follow-up duration of 14.18±9.62 *** ESMR-L following roofing technique is an effective and safe technique for management of esophageal SEL-MPs smaller than 20 mm,but it cannot ensure en bloc resection and may require further treatment.

关键词： Subepithelial lesions Muscularis propria Esophagus Ligation Endoscopic submucosal resection

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Universal paradigm of ternary metacomposites with tunable epsilon-negative and epsilon-near-zero response for perfect electromagnetic shielding

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Rare Metals 2024年第2期43卷 796-809页

作者： Yun-peng Qu Yun-Lei Zhou Yang Luo yao Liu jun-Fei Ding Yan-Li Chen Xiu Gong Jing-Liang Yang Qiong peng Xiao-Si Qi College of Physics Guizhou UniversityGuiyang550025China Hangzhou Institute of Technology Xidian UniversityHangzhou311231China Department of Materials ETH Zurich8093ZurichSwitzerland Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) Shandong UniversityJinan250061China

CaCu_(3)Ti_(4)O_(12)(CCTO)ceramic nanocomposites incorporating graphene–carbon black(GRCB)fillers were fabricated by spark plasma sintering *** percolative effects of conductive GRCB fillers on dielectric response of GRCB/CCTO ternary metacomposites were systematically *** weakly real permittivity(ε′)-negative response(ε′~−1×10^(2))was achieved which originated from weakly low-frequency plasmonic state of free carriers within constructed GRCB *** enhancing three-dimensional GRCB network,the plasma frequency of metacomposites increased while the damping factor ***,theε′-negative values of metacomposites were tuned from−10^(2) to−10^(4) orders of magnitude andε′-near-zero(ENZ)frequencies from~142 to~340 MHz which substantially benefited from the moderate carrier concentration of GRCB dual *** Drude model and equivalent circuit models were adopted to demonstrate dielectric and electrical *** obtained metacomposites show strong EM shielding effect along with enhanced plasmonic oscillation and even better achieving perfect EM shielding effect in ENZ *** work achieves the tunableε′-negative andε′-near-zero response and more importantly clarifies its regulation mechanism in ceramic-based ternary metacomposites,which opens up the possibility of designing high-performance EM shielding materials based on metacomposites.

关键词： Metacomposites Ceramic matrix composites Negative permittivity Epsilon-near-zero Electromagnetic shielding

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Electroacupuncture Alleviates Functional Constipation in Mice by Activating Enteric Glial Cell Autophagy via PI3K/AKT/mTOR Signaling

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Chinese Journal of Integrative Medicine 2023年第5期29卷 459-469页

作者： WANG Lu CHEN Ying XU Ming-min CAO Wei ZHENG Qian-hua ZHOU Si-yuan yao jun-peng XI Meng-han QIN Hai-yan LI Ying ZHANG Wei Acupuncture and Tuina School Chengdu University of Traditional Chinese MedicineChengdu(610075)China School of Traditional Chinese Medicine Jinan UniversityGuangzhou(510632)China

Objective: To investigate autophagy-related mechanisms of electroacupuncture(EA) action in improving gastrointestinal motility in mice with functional constipation(FC). Methods: According to a random number table, the Kunming mice were divided into the normal control, FC and EA groups in Experiment Ⅰ. The autophagy inhibitor 3-methyladenine(3-MA) was used to observe whether it antagonized the effects of EA in Experiment Ⅱ. An FC model was established by diphenoxylate gavage. Then the mice were treated with EA stimulation at Tianshu(ST 25) and Shangjuxu(ST 37) acupoints. The first black stool defecation time, the number, weight, and water content of 8-h feces, and intestinal transit rate were used to assess intestinal transit. Colonic tissues underwent histopathological assessment, and the expressions of autophagy markers microtubuleassociated protein 1 light chain 3(LC3) and Beclin-1 were detected by immunohistochemical staining. The expressions of phosphoinositide 3-kinases(PI3K)-protein kinase B(AKT)-mammalian target of rapamycin(m TOR) signaling pathway members were investigated by Western blot and quantitative reverse transcription-polymerase chain reaction, respectively. The relationship between enteric glial cells(EGCs) and autophagy was observed by confocal immunofluorescence microscopy, localization analysis, and electron microscopy. Results: EA treatment shortened the first black stool defecation time, increased the number, weight, and water content of 8-h feces, and improved the intestinal transit rate in FC mice(P<0.01). In terms of a putative autophagy mechanism, EA treatment promoted the expressions of LC3 and Beclin-1 proteins in the colonic tissue of FC mice(P<0.05), with glial fibrillary acidic protein(GFAP) and LC3 significantly colocalized. Furthermore, EA promoted colonic autophagy in FC mice by inhibiting PI3K/AKT/m TOR signaling(P<0.05 or P<0.01). The positive effect of EA on intestinal motility in FC mice was blocked by 3-MA. Conclusion: EA tre

关键词： electroacupuncture gastrointestinal motility autophagy enteric glial cells Chinese medicine

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Discovery of a potential bladder cancer inhibitor CHNQD-01281 by regulating EGFR and promoting infiltration of cytotoxic T cells

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Marine Life Science & Technology 2024年第3期6卷 502-514页

作者： Jian-Yu Liu yao-yao Jiang peng-Jie Li Bo yao Yi-Jing Song Ji-Xiu Gao Gulab Said Yang Gao jun-Yu Lai Chang-Lun Shao Key Laboratory of Marine Drugs the Ministry of Education of ChinaSchool of Medicine and PharmacyOcean University of ChinaQingdao 266003China Department of Critical Care Medicine the Affiliated Hospital of Qingdao UniversityQingdao 266003China Department of Chemistry Women University SwabiSwabi 23430Pakistan Laoshan Laboratory Qingdao 266237China Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou 571158China

As one of the common malignancies that threaten human life,bladder cancer occurs frequently with a high mortality rate in the world,due to its invasion,recurrence and drug *** products from marine microorganisms are becoming the hotspots in discovery of new candidate drug entities,especially in the area of *** A(BFA)is a natural Arf-GEFs inhibitor,but due to the low aqueous solubility,strong toxicity,and poor bioavailability,it is urgent to conduct structural optimization ***,a new BFA pyridine acrylate derivative CHNQD-01281 with improved solubility was prepared and found to exert moderate to strong antiproliferative activity on a variety of human cancer cell *** was noteworthy that CHNQD-01281 was most sensitive to two bladder cancer cell lines T24 and J82(IC50=0.079 and 0.081μmol/L)with high selectivity index(SI=14.68 and 14.32),suggesting a superior safety to *** vivo studies revealed that CHNQD-01281 remarkably suppressed tumor growth in a T24 nude mice xenograft model(TGI=52.63%)and prolonged the survival time(ILS=68.16%)in an MB49 allogeneic mouse model via inducing infiltration of cytotoxic T *** mechanism exploration indicated that CHNQD-01281 regulated both EGFR/PI3K/AKT and EGFR/ERK pathways and mediated the chemotactic effect of chemokines on immune effector ***,CHNQD-01281 may serve as a potential therapeutic agent for bladder cancer through multiple mechanisms.

关键词： Bladder cancer Marine natural products Brefeldin A EGFR/PI3K/AKT EGFR/ERK T-cell infiltration

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