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Jayapaul A, Lin YC, Lin LY, Dhawan U, Duann YF, Lee YH, Liu TY, Sakthivel R, Chung RJ. Synergistic activation of lamellar bismuth selenide anchored functionalized carbon nanofiber for detecting hazardous carbendazim in environmental water samples. Chemosphere 2024; 355:141744. [PMID: 38522669 DOI: 10.1016/j.chemosphere.2024.141744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 02/10/2024] [Accepted: 03/16/2024] [Indexed: 03/26/2024]
Abstract
Pesticides pollute natural water reservoirs through persistent accumulation. Therefore, their toxicity and degradability are serious issues. Carbendazim (CBZ) is a pesticide used against fungal infections in agricultural crops, and its overexploitation detrimentally affects aquatic ecosystems and organisms. It is necessary to design a logical, efficient, and field-deployable method for monitoring the amount of CBZ in environmental samples. Herein, a nano-engineered bismuth selenide (Bi2Se3)/functionalized carbon nanofiber (f-CNF) nanocomposite was utilized as an electrocatalyst to fabricate an electrochemical sensing platform for CBZ. Bi2Se3/f-CNF exhibited a substantial electroactive surface area, high electrocatalytic activity, and high conductivity owing to the synergistic interaction of Bi2Se3 with f-CNF. The structural chemical compositions and morphology of the Bi2Se3/f-CNF nanocomposite were confirmed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and field-emission scanning electron microscopy (FESEM). Electrochemical analysis was carried out using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). The voltammetry and impedance experiments exposed that the Bi2Se3/f-CNF-modified GCE has attained adequate electrocatalytic function with amended features of electron transportation (Rct = 35.93 Ω) and improved reaction sites (0.082 cm2) accessible by CBZ moiety along with exemplary electrochemical stability (98.92%). The Bi2Se3/f-CNF nanocomposite exhibited higher sensitivity of 0.2974 μA μM-1cm-2 and a remarkably low limit of detection (LOD) of 1.04 nM at a broad linera range 0.001-100 μM. The practicability of the nanocomposite was tested in environmental (tap and pond water) samples, which supports excellent signal amplification with satisfactory recoveries. Hence, the Bi2Se3/f-CNF nanocomposite is a promising electrode modifier for detecting CBZ.
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Affiliation(s)
- Abishek Jayapaul
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Yu-Chien Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan; ZhongSun Co., LTD, New Taipei City 220031, Taiwan
| | - Lu-Yin Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Udesh Dhawan
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow, UK
| | - Yeh-Fang Duann
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Yi-Hsuan Lee
- Department of Mechanical Engineering, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, 32003, Taiwan.
| | - Rajalakshmi Sakthivel
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan.
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan.
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Wang KS, Kuan TY, Chen YC, Chu YJ, Chen JS, Chen CC, Liu TY. Simultaneous detection of SARS-CoV-2 S1 protein by using flexible electrochemical and Raman enhancing biochip. Biosens Bioelectron 2024; 249:116021. [PMID: 38219466 DOI: 10.1016/j.bios.2024.116021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/25/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Flexible laser-scribed graphene (LSG) substrates with gold nanoislands have been developed as biochips for in situ electrochemical (EC) and surface-enhanced Raman scattering (SERS) biodetection (biomolecules and viral proteins). A flexible biochip was fabricated using CO2 laser engraving polyimide (PI) films to form a 3D porous graphene-like nanostructure. Gold nanoislands were deposited on the LSG substrates to enhance the intensity of the Raman signals. Moreover, the addition of auxiliary and reference electrodes induced a dual-function EC-SERS biochip with significantly enhanced detection sensitivity. The biochip could selectively and easily capture SARS-CoV-2 S1 protein through the SARS-CoV-2 S1 antibody immobilized on EC-SERS substrates using 1-ethyl-(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The grafted antibody specifically bound to SARS-CoV-2, resulting in a significant increase in the SERS signal of the target analyte. The limit of detection (LOD) of the SARS-CoV-2 S1 protein was 5 and 100 ng/mL by using EC and SERS detection, respectively. Although the LOD of the SARS-CoV-2 S1 protein detected using SERS is only 100 ng/mL, it can provide fingerprint information for identification. To improve the LOD, EC detection was integrated with SERS detection. The three-electrode detection chip enables the simultaneous detection of SERS and EC signals, which provides complementary information for target identification. The dual-functional detection technology demonstrated in this study has great potential for biomedical applications, such as the rapid and sensitive detection of SARS-CoV-2.
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Affiliation(s)
- Kuan-Syun Wang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Tsai-Yu Kuan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Yun-Chu Chen
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Yu-Ju Chu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Jeng-Shiung Chen
- Yottadeft Optoelectronics Technology Co., Ltd., Taipei, 10460, Taiwan
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City, 23742, Taiwan; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, 11490, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan; College of Engineering & Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan, 33302, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, Taiwan.
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Wang SF, Chang YL, Liu TY, Huang KH, Fang WL, Li AFY, Yeh TS, Hung GY, Lee HC. Mitochondrial dysfunction decreases cisplatin sensitivity in gastric cancer cells through upregulation of integrated stress response and mitokine GDF15. FEBS J 2024; 291:1131-1150. [PMID: 37935441 DOI: 10.1111/febs.16992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/18/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
Gastric neoplasm is a high-mortality cancer worldwide. Chemoresistance is the obstacle against gastric cancer treatment. Mitochondrial dysfunction has been observed to promote malignant progression. However, the underlying mechanism is still unclear. The mitokine growth differentiation factor 15 (GDF15) is a significant biomarker for mitochondrial disorder and is activated by the integrated stress response (ISR) pathway. The serum level of GDF15 was found to be correlated with the poor prognosis of gastric cancer patients. In this study, we found that high GDF15 protein expression might increase disease recurrence in adjuvant chemotherapy-treated gastric cancer patients. Moreover, treatment with mitochondrial inhibitors, especially oligomycin (a complex V inhibitor) and salubrinal (an ISR activator), respectively, was found to upregulate GDF15 and enhance cisplatin insensitivity of human gastric cancer cells. Mechanistically, it was found that the activating transcription factor 4-C/EBP homologous protein pathway has a crucial function in the heightened manifestation of GDF15. In addition, reactive oxygen species-activated general control nonderepressible 2 mediates the oligomycin-induced ISR, and upregulates GDF15. The GDF15-glial cell-derived neurotrophic factor family receptor a-like-ISR-cystine/glutamate transporter-enhanced glutathione production was found to be involved in cisplatin resistance. These results suggest that mitochondrial dysfunction might enhance cisplatin insensitivity through GDF15 upregulation, and targeting mitokine GDF15-ISR regulation might be a strategy against cisplatin resistance of gastric cancer.
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Affiliation(s)
- Sheng-Fan Wang
- Department of Pharmacy, Taipei Veterans General Hospital, Taiwan
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taiwan
- Department and Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yuh-Lih Chang
- Department of Pharmacy, Taipei Veterans General Hospital, Taiwan
- Department and Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Pharmacy, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ting-Yu Liu
- Department and Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Kuo-Hung Huang
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taiwan
- Department of Surgery, Gastric Cancer Medical Center, Taipei Veterans General Hospital, Taiwan
| | - Wen-Liang Fang
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taiwan
- Department of Surgery, Gastric Cancer Medical Center, Taipei Veterans General Hospital, Taiwan
| | - Anna Fen-Yau Li
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Anatomical Pathology, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Tien-Shun Yeh
- Institute of Anatomy and Cell Biology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Giun-Yi Hung
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Taipei Veterans General Hospital, Taiwan
| | - Hsin-Chen Lee
- Department and Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Pharmacy, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Yang R, Hu N, Liu TY, Qu Y, Liu J, Wang JH, Yang BF, Li CL. Salvianolic acid A provides neuroprotective effects on cerebral ischemia-reperfusion injury in rats via PKA/CREB/c-Fos signaling pathway. Phytomedicine 2024; 124:155326. [PMID: 38185068 DOI: 10.1016/j.phymed.2023.155326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/13/2023] [Accepted: 12/27/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) is a phenomenon that pathological injury of ischemic brain tissue is further aggravated after the restoration of blood supply. The complex pathological mechanism of CIRI has led to the failure of multiple neuroprotective agents in clinical studies. Salvianolic acid A (SAA) is a neuroprotective extract from Salvia miltiorrhiza Bge., with significant pharmacological activities in the treatment of brain injury. However, the neuroprotective mechanisms of SAA remain unclear. PURPOSE To explore the potential protective effect of SAA on CIRI and its mechanism, and to provide experimental basis for the research of new drugs for CIRI. STUDY DESIGN A model of transient middle cerebral artery occlusion (tMCAO) in rats was used to simulate clinical CIRI, and the neuroprotective effect of SAA on tMCAO rats was investigated within 14 days after reperfusion. The improvement effects of SAA on cognitive impairment of tMCAO rats were investigated by behavioral tests from days 7-14. Finally, the neuroprotective mechanism of SAA was investigated on day 14. METHODS The neuroprotective effects and mechanism of SAA were investigated by behavioral tests, HE and TUNEL staining, RNA sequence (RNA-seq) analysis and Western blot in tMCAO rats. RESULTS The brain protective effects of SAA were achieved by alleviating cerebral infarction, cerebral edema, cerebral atrophy and nerve injury in tMCAO rats. Meanwhile, SAA could effectively improve the cognitive impairment and pathological damage of hippocampal tissue, and inhibit cell apoptosis in tMCAO rats. Besides, SAA could provide neuroprotective effects by up-regulating the expression of Bcl-2, inhibiting the activation of Caspase 3, and regulating PKA/CREB/c-Fos signaling pathway. CONCLUSION SAA can significantly improve brain injury and cognitive impairment in CIRI rats, and this neuroprotective effect may be achieved through the anti-apoptotic effect and the regulation of PKA/CREB/c-Fos signaling pathway.
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Affiliation(s)
- Ran Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Nan Hu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Ting-Yu Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Yue Qu
- Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR China
| | - Jie Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Jin-Hui Wang
- Department of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, PR China
| | - Bao-Feng Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China; Department of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, PR China.
| | - Chun-Li Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
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Rajaji U, Saisree S, Sandhya KY, Alshgari RA, Juang RS, Liu TY. Fabrication of a novel tantalum boride/vanadium carbide modified screen-printed carbon electrode for voltammetric determination of pimonidazole in bio-fluids. Mikrochim Acta 2024; 191:112. [PMID: 38286966 DOI: 10.1007/s00604-024-06182-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 12/31/2023] [Indexed: 01/31/2024]
Abstract
For the first time, a tumour hypoxia marker detection has been developed using two-dimensional layered composite modified electrodes in biological and environmental samples. The concept of TaB2 and V4C3-based MXene composite materials is not reported hitherto using ball-milling and thermal methods and it remains the potentiality of the present work. The successful formation is confirmed through various characterisation techniques like X-ray crystallography, scanning electron microscopy photoelectron, and impedance spectroscopy. A reliable and repeatable electrochemical sensor based on TaB2@V4C3/SPCE was developed for quick and extremely sensitive detection of pimonidazole by various electroanalytical methods. It has been shown that the modified electrode intensifies the reduction peak current and causes a decrease in the potential for reduction, in comparison with the bare electrode. The proposed sensor for pimonidazole reduction has strong electrocatalytic activity and high sensitivity, as demonstrated by the cyclic voltammetry approach. Under the optimal experimental circumstances, differential pulse voltammetry techniques were utilised for generating the wide linear range (0.02 to 928.51 µM) with a detection limit of 0.0072 µM. The resultant data demonstrates that TaB2@V4C3/SPCE nano-sensor exhibits excellent stability, reliability, and repeatability in the determination of pimonidazole. Additionally, the suggested sensor was successfully used to determine the presence of pimonidazole in several real samples, such as human blood serum, urine, water, and drugs.
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Affiliation(s)
- Umamaheswari Rajaji
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
- Centre for Applied Research, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 602105, Tamil Nadu, India
| | - S Saisree
- Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, 695 547, India
| | - K Y Sandhya
- Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, 695 547, India.
| | - Razan A Alshgari
- Chemistry Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Ruey-Shin Juang
- Department of Chemical and Materials Engineering, Chang Gung University, 259 Wenhua First Road Guishan, Taoyuan, 33302, Taiwan.
- Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City, Taishan, 243303, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan.
- College of Engineering & Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan, 33302, Taiwan.
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, 32003, Taiwan.
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Yang MC, Chien TY, Cheng YW, Hsieh CK, Syu WL, Wang KS, Chen YC, Chen JS, Chen CC, Liu TY. Reproducible SERS substrates manipulated by interparticle spacing and particle diameter of gold nano-island array using in-situ thermal evaporation. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123190. [PMID: 37499474 DOI: 10.1016/j.saa.2023.123190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/29/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
Gold (Au) nano-island arrays were deposited on the glass substrate to fabricate surface-enhanced Raman scattering (SERS) substrates by in-situ thermal evaporation (deposited and annealed samples at the same time). The optimal SERS intensity deposited by various thicknesses and in-situ annealing temperatures of Au nano-island arrays would be investigated. The biomolecules (adenine) were dropped on the well-designed SERS substrate for precise and quantitative SERS detection. The characterization of Au nano-island arrays SERS substrate would be evaluated by scanning electron microscope (SEM) and Raman spectroscopy. The results showed that the optimal deposition thickness and annealing temperature of Au nano-island arrays SERS substrate is about 14 nm and 200 °C respectively, which can construct the smallest interparticle spacing (W)/ particle diameter (D) ratio and the lowest reflection (%) and transmittance (%) to form the strongest SERS intensity. Moreover, finite-difference time-domain (FDTD) simulation of the electromagnetic field distributions on Au nano-island arrays displays the similar trend with the experimental results. The 14 nm deposition with 200 °C in-situ annealing temperature would display the highest density of hot-spots by FDTD simulation. The reproducible Au nano-island arrays SERS substrates with tunable surface roughness, W/D ratio, and lower reflection and transmittance show promising potential for SERS detection of biomolecules, bacteria, and viruses.
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Affiliation(s)
- Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
| | - Ting-Yin Chien
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yu-Wei Cheng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Biochemical Technology R&D Center, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
| | - Chien-Kuo Hsieh
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Wei-Lin Syu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Kuan-Syun Wang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yun-Chu Chen
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Jeng-Shiung Chen
- Yottadeft Optoelectronics Technology Co., Ltd., Taipei 10460, Taiwan
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan; Graduate Institute of Medical Science, National Defense Medical Center, Taipei 11490, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Biochemical Technology R&D Center, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan.
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Chen DR, Zhang B, Yu YY, Liu TY, Li S, Liu XY. [Ulcer intraluminal isolation in refractory duodenal ulcer with bleeding]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:878-880. [PMID: 37709698 DOI: 10.3760/cma.j.cn441530-20221115-00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
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Su YJ, Yu HT, Liu TY, Lu KH, Tu CC, Lin YC, Chen RC. Trends in suicide attempts and suicide deaths before and during the COVID-19 pandemic in New Taipei City, Taiwan: an interrupted time-series analysis. Psychol Med 2023; 53:4364-4372. [PMID: 35477437 PMCID: PMC10388328 DOI: 10.1017/s0033291722001155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/26/2022] [Accepted: 04/05/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) pandemic is an unprecedented global health crisis that may cause mental health problems and heighten suicide risk. We investigated the impact of the COVID-19 pandemic on trends in suicide attempts and suicide deaths in New Taipei City, Taiwan. METHODS The current study used the official daily data on suicide attempts and deaths in New Taipei City, Taiwan (4 million inhabitants) between 2015 and 2020 from the Taiwan National Suicide Prevention Reporting System. Interrupted time-series (ITS) analyses with parameters corrected by the estimated autocorrelations were applied on weekly aggregated data to examine whether the suicide trends during the early COVID-19 pandemic (late January to July 2020) deviated from previous trends (January 2015 to late January 2020). The impact due to the suicide prevention policy change was also examined (since August 2020). RESULTS ITS analyses revealed no significant increases in both mean and trend on weekly suicide deaths during the COVID-19 pandemic and after the policy change. In contrast, there was a significant increasing trend in weekly suicide attempts since the COVID-19 outbreak at the rate of 1.54 attempts per week (95% confidence interval 0.49-2.60; p = 0.004). Sex difference analysis revealed that, however, this increasing trend was observed only in females not in males. CONCLUSIONS The COVID-19 pandemic has different impacts on suicides attempts and deaths during the early pandemic in New Taipei City, Taiwan. The COVID-19 outbreak drastically increased the trend of suicide attempts. In contrast, the number of suicide deaths had remained constant in the investigated periods.
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Affiliation(s)
- Yi-Jen Su
- Graduate Institute of Behavioral Sciences, Chang Gung University, Taoyuan, Taiwan
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Hsiu-Ting Yu
- Department of Psychology, National Chengchi University, Taipei, Taiwan
- Research Center for Mind, Brain & Learning, National Chengchi University, Taipei, Taiwan
| | - Ting-Yu Liu
- Graduate Institute of Behavioral Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Kuan-Hung Lu
- Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Chung-Chieh Tu
- Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Yu-Ching Lin
- Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Ran-Chou Chen
- Department of Health, New Taipei City Government, New Taipei City, Taiwan
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Hsu SC, Wang KS, Lin YT, Huang JH, Wu NJ, Kang JL, Weng HC, Liu TY. Surface Modification of Li 3VO 4 with PEDOT:PSS Conductive Polymer as an Anode Material for Li-Ion Capacitors. Polymers (Basel) 2023; 15:polym15112502. [PMID: 37299301 DOI: 10.3390/polym15112502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Li3VO4 (LVO) is a highly promising anode material for lithium-ion batteries, owing to its high capacity and stable discharge plateau. However, LVO faces a significant challenge due to its poor rate capability, which is mainly attributed to its low electronic conductivity. To enhance the kinetics of lithium ion insertion and extraction in LVO anode materials, a conductive polymer called poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is applied to coat the surface of LVO. This uniform coating of PEDOT:PSS improves the electronic conductivity of LVO, thereby enhancing the corresponding electrochemical properties of the resulting PEDOT:PSS-decorated LVO (P-LVO) half-cell. The charge/discharge curves between 0.2 and 3.0 V (vs. Li+/Li) indicate that the P-LVO electrode displays a capacity of 191.9 mAh/g at 8 C, while the LVO only delivers a capacity of 111.3 mAh/g at the same current density. To evaluate the practical application of P-LVO, lithium-ion capacitors (LICs) are constructed with P-LVO composite as the negative electrode and active carbon (AC) as the positive electrode. The P-LVO//AC LIC demonstrates an energy density of 107.0 Wh/kg at a power density of 125 W/kg, along with superior cycling stability and 97.4% retention after 2000 cycles. These results highlight the great potential of P-LVO for energy storage applications.
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Affiliation(s)
- Shih-Chieh Hsu
- Department of Chemical and Materials Engineering, Tamkang University, No. 151, Yingzhuan Road, Tamsui District, New Taipei City 25137, Taiwan
| | - Kuan-Syun Wang
- Department of Materials Engineering, Ming Chi University of Technology, 84 Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan
| | - Yan-Ting Lin
- Institute of Nuclear Energy Research, Atomic Energy Council, 1000 Wenhua Road, Jiaan Village, Longtan District, Taoyuan City 32546, Taiwan
| | - Jen-Hsien Huang
- Department of Green Material Technology, Green Technology Research Institute, CPC Corporation, No.2, Zuonan Rd., Nanzi District, Kaohsiung City 81126, Taiwan
| | - Nian-Jheng Wu
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Jia-Lin Kang
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan
| | - Huei-Chu Weng
- Department of Mechanical Engineering, Chung Yuan Christian University, No. 200, Chungpei Road, Chungli District, Taoyuan City 32023, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, 84 Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan
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Hu N, Qu Y, Liu TY, Zhou Y, Liu C, Wang JH, Yang BF, Li CL. Immunomodulatory effects and mechanisms of Tiepishihu Xiyangshen granules on cyclophosphamide induced immuno-suppression via TLR4/MAPKs and PI3K/AKT/FOXO3a signal pathways. J Ethnopharmacol 2023; 307:116192. [PMID: 36706933 DOI: 10.1016/j.jep.2023.116192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tiepishihu Xiyangshen granules (TXG) is a traditional Chinese medicine formula composed of Panax quinquefolius L, Dendrobium officinale Kimura & Migo and Ganoderma lucidum (Curtis) P. Karst. It has long been used as a nutritional supplement and an immune enhancer in China. However, the immunomodulatory effects and the underlying mechanisms of TXG have not been clarified. AIM OF THE STUDY This study aims to investigate the immunomodulatory effects of TXG and clarify the underlying mechanism. MATERIALS AND METHOD TXG was administered by gavage for 18 days. From the 15th day, the immunosuppression model was induced by intraperitoneally injecting 80 mg/kg CTX for 3 days. The immune regulatory effects of TXG on immune organs were verified by calculating the organ index and observing the spleen tissue structure through HE staining. The effects of TXG on immune cells were examined by recording the PBWC, the proliferation rate of lymphocyte and the T lymphocyte phenotype. The effects of TXG on immune molecules were measured by detecting serum hemolysin and the content of cytokines. In parallel, kit was utilized to detect its antioxidant capacity. RNA seq and Western blot were used to analyze the possible immune regulation mechanism of TXG. HPLC and UPLC-Q-TOF-MS were used to identify the chemical components in TXG. RESULTS At the level of immune organs, TXG effectively reduced the adverse reaction to the body and the substantial damage to the spleen after chemotherapy by improving the spleen damage. At the level of immune molecules, TXG upregulated the expression of cytokines and antibodies. At the level of immune cells, TXG antagonized bone marrow suppression by increasing the PBWC of immunosuppressed mice. Meanwhile, TXG upregulated the ratio of CD4+/CD8+ lymphocytes and ameliorated the proliferation of T and B lymphocytes. And the mechanism of TXG to improve immunity might be through TLR4/MAPKs and PI3K/AKT/FOXO3a signaling pathways. CONCLUSION The results of this study confirmed that TXG has prominent immunomodulatory activities, and the immunity regulations of TXG may be achieved by regulating TLR4/MAPKs and PI3K/AKT/FOXO3a signal pathways.
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Affiliation(s)
- Nan Hu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Yue Qu
- Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Ting-Yu Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Yue Zhou
- Department of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Chang Liu
- Department of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Jin-Hui Wang
- Department of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Bao-Feng Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning, China; Department of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, China.
| | - Chun-Li Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning, China.
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Yuan XX, Duan YF, Luo C, Li L, Yang MJ, Liu TY, Cao ZR, Huang W, Bu X, Yue X, Liu RY. Disulfiram enhances cisplatin cytotoxicity by forming a novel platinum chelate Pt(DDTC) 3. Biochem Pharmacol 2023; 211:115498. [PMID: 36913990 DOI: 10.1016/j.bcp.2023.115498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/21/2023] [Accepted: 03/06/2023] [Indexed: 03/15/2023]
Abstract
Despite the use of targeted therapy in non-small cell lung cancer (NSCLC) patients, cisplatin (DDP)-based chemotherapy is still the main option. However, DDP resistance is the major factor contributing to the failure of chemotherapy. In this study, we tried to screen DDP sensitizers from an FDA-approved drug library containing 1374 small-molecule drugs to overcome DDP resistance in NSCLC. As a result, disulfiram (DSF) was identified as a DDP sensitizer: DSF and DDP had synergistic anti-NSCLC effects, which are mainly reflected in inhibiting tumor cell proliferation, plate colony formation and 3D spheroidogenesis and inducing apoptosis in vitro, as well as the growth of NSCLC xenografts in mice. Although DSF has recently been reported to promote the antitumor effect of DDP by inhibiting ALDH activity or modulating some important factors or pathways, unexpectedly, we found that DSF reacted with DDP to form a new platinum chelate, Pt(DDTC)3+, which might be one of the important mechanisms for their synergistic effect. Moreover, Pt(DDTC)3+ has a stronger anti-NSCLC effect than DDP, and its antitumor activity is broad-spectrum. These findings reveal a novel mechanism underlying the synergistic antitumor effect of DDP and DSF, and provide a drug candidate or a lead compound for the development of a new antitumor drug.
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Affiliation(s)
- Xue-Xia Yuan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - You-Fa Duan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Chunxiang Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Lu Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Meng-Jie Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, Guangdong, China
| | - Ting-Yu Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Zhi-Rui Cao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Department of Traditional Chinese Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Wenlin Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Guangdong Provincial Key Laboratory of Tumor Targeted Drugs & Guangzhou Enterprise Key Laboratory of Gene Medicine, Guangzhou DoublleBioproduct Co., Ltd., Guangzhou 510535, China
| | - Xianzhang Bu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xin Yue
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Institute of Precision Medicine, The First Affiliated Hospital, SunYat-sen University, Guangzhou 510080, China.
| | - Ran-Yi Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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Chou TFA, Liu TY, Wang MN, Yang CY. Treatment of Refractory Congenital Pseudoarthrosis of Tibia with Contralateral Vascularized Fibular Bone Graft and Anatomic Distal Tibial Locking Plate: A Case Series and Literature Review. Children 2023; 10:children10030503. [PMID: 36980061 PMCID: PMC10046898 DOI: 10.3390/children10030503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023]
Abstract
Background: Congenital pseudoarthrosis of the tibia (CPT) remains a challenge for physicians. Several treatment options have been proposed, but the standard of care remains inconclusive. In this study, we present three patients for whom the failure of prior treatments was managed with a contralateral vascularized fibular bone graft (VFG) and an anatomic distal tibial locking plate. Methods: Between 2017 and 2021, three patients were referred for failed treatment of CPT. All patients had undergone multiple prior surgeries, including tumor excision and fixation with ring external fixators, plates, and screws. We performed radical tumor resection and reconstruction of bone defects with a VFG. The construct was fixed with an anatomic locking plate, and the patients were followed up for a mean of 45.7 months. Results: All three patients were able to obtain graft union at 19.3 weeks. At the final follow-up, all grafts achieved bony hypertrophy without evidence of bone resorption or local tumor recurrence. There was a mean leg length difference of 8.5 cm preoperatively, compared with 6.3 cm postoperatively. The average lower leg angulation was 7.4 degrees and the average ankle range of motion was 58.3 degrees. The mean VAS score was 0 and the mean AOFAS score was 88.3. No significant complications were noted. Conclusions: Implantation of a VFG and an anatomic distal tibia locking plate can be considered an option for treatment-refractory CPT. Patients can expect to achieve bone consolidation, ambulate as tolerated, and have a low complication rate.
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Affiliation(s)
- Te-Feng Arthur Chou
- Department of Orthopaedics, Kuang Tien General Hospital, Taichung 433401, Taiwan
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- Department of Orthopaedic Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, The Bronx, NY 10461, USA
| | - Ting-Yu Liu
- Department of Orthopaedics, Kuang Tien General Hospital, Taichung 433401, Taiwan
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- Department of Nursing, Hungkuang University, Taichung 433304, Taiwan
| | - Matthew N. Wang
- Department of Orthopaedics, Kuang Tien General Hospital, Taichung 433401, Taiwan
- Department of Nursing, Hungkuang University, Taichung 433304, Taiwan
| | - Chen-Yuan Yang
- Department of Orthopaedics, Kuang Tien General Hospital, Taichung 433401, Taiwan
- Department of Nursing, Hungkuang University, Taichung 433304, Taiwan
- Correspondence: ; Tel.: +886-4-2662-5111
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13
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Rajaji U, Raghu MS, Yogesh Kumar K, Almutairi TM, Mohammed AA, Juang RS, Liu TY. A sonochemical synthesis of SrTiO 3 supported N-doped graphene oxide as a highly efficient electrocatalyst for electrochemical reduction of a chemotherapeutic drug. Ultrason Sonochem 2023; 93:106293. [PMID: 36638650 PMCID: PMC9852652 DOI: 10.1016/j.ultsonch.2023.106293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 06/03/2023]
Abstract
A sonochemical based green synthesis method playa powerful role in nanomaterials and composite development. In this work, we developed a perovskite type of strontium titanate via sonochemical process. SrTiO3 particles were incorporated with nitrogen doped graphene oxide through simple ultrasonic irradiation method. The SrTiO3/NGO was characterized by various analytical methods. The nanocomposite of SrTiO3/NGO was modified with laser-induced graphene electrode (LIGE). The SrTiO3/NGO/LIGE was applied for electrochemical sensor towards chemotherapeutic drug detection (nilutamide). Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques have been used to examine the electrochemical performance of nilutamide (anti-cancer drug). DPV was found to be more sensitive and found to exhibit a sensitivity 8.627 µA µM-1 cm-2 for SrTiO3/NGO/LIGE with a wide linear range (0.02-892 µM) and low Limit of detection (LOD: 1.16 µM). SrTiO3/NGO/LIGE has been examined for the detection of nilutamide in blood serum and urine samples and obtained a good recovery in the range of 97.2-99.72 %. The enhanced stability and selectivity and practical application results indicates the suitability of SrTiO3/NGO/LIGE towards the detection of nilutamide drug in pharmaceutical industries.
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Affiliation(s)
- Umamaheswari Rajaji
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - M S Raghu
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore 560103, India
| | - K Yogesh Kumar
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore 562112, India; Korea University of Technology and Education, Cheonan-si 31253, Chungcheongnam-do, Cheonan-si, Republic of Korea
| | - Tahani M Almutairi
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - AbdallahA A Mohammed
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ruey-Shin Juang
- Department of Chemical and Materials Engineering, Chang Gung University 259 Wenhua First Road Guishan, Taoyuan 33302, Taiwan; Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, Taishan, New Taipei City 243303, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Research Center for Intelligent Medical Devices, Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
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14
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Sakthivel R, Liu TY, Chung RJ. Bimetallic Cu 5Zn 8 alloy-embedded hollow porous carbon nanocubes derived from 3D-Cu/ZIF-8 as efficient electrocatalysts for environmental pollutant detection in water bodies. Environ Res 2023; 216:114609. [PMID: 36272591 DOI: 10.1016/j.envres.2022.114609] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Excessive use of nitrofurantoin (NFT) and its residues can be harmful to the ecosystem, and to mitigate this, rapid and cost-effective detection of NFT in water bodies is needed. In this regard, we prepared a three-dimensional (3D) copper-zeolitic imidazole framework (Cu/ZIF-8)-derived bimetallic Cu5Zn8 alloy-embedded hollow porous carbon nanocubes (Cu5Zn8/HPCNC) for electrochemical detection of NFT. The resultant material is characterized using suitable spectrophotometry and voltammetry methods. Cu5Zn8/HPCNC is an effective electrocatalyst with high electrical conductivity and a fast electron transfer rate. It also has more catalytic active sites for improved electrochemical reduction of NFT. Fabricated Cu5Zn8/HPCNC-modified screen-printed electrode (SPE) for NFT reduction have a wide linear range with a low detection limit, and high sensitivity (15.343 μA μМ-1 cm-2), appreciable anti-interference ability with related nitro compounds, storage stability, reproducibility, and repeatability. Also, the practicability of Cu5Zn8/HPCNC/SPE can be successfully employed in NFT monitoring in water bodies (drinking water, pond water, river water, and tap water) with satisfactory recoveries.
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Affiliation(s)
- Rajalakshmi Sakthivel
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, 32003, Taiwan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan.
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15
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Rajaji U, Yogesh Kumar K, Arumugam R, Alothman AA, Ouladsmane M, Chung RJ, Liu TY. Sonochemical construction of hierarchical strontium doped lanthanum trisulfide electrocatalyst: An efficient electrode for highly sensitive detection of ecological pollutant in food and water. Ultrason Sonochem 2023; 92:106251. [PMID: 36462467 PMCID: PMC9712680 DOI: 10.1016/j.ultsonch.2022.106251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Herbicides are used constantly in agriculture to enhance productivity across the globe. This herbicide monitoring requires utmost importance since its high dose leads to ecological imbalance and a negative impact on the environment. Moreover, a quantification of toxic herbicide is one of the important problems in the food analysis. In this work, deals with the development of a simple, and facile one-pot sonochemical synthesis of strontium doped La2S3 (Sr@La2S3). Morphological and structural characterization confirms the doping of Sr@La2S3 to generate a hierarchical layered structure. The electrochemical performance of modified with rotating disk electrode (RDE) using Sr@La2S3 composite is high, compared to La2S3 and bare electrodes towards the quantitative detection of mesotrione (MTO) in phosphate buffer. Sr@La2S3/RDE showed good sensitivity for MTO detection and it exhibit a range of 0.01-307.01 μM and limit of detection of 2.4 nM. Besides, the selectivity of fabricated electrode is high as it can electrochemically reduce MTO particularly, even in the presence of other chemicals, biological molecules and inorganic ions. The repeatability of MTO detection is high even after 30 days with a lower RSD values. Hence, simple fabrication of Sr@La2S3/RDE could be a novel electrode for the sensitive, selective, and reproducible determination of herbicides in real-time applications.
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Affiliation(s)
- Umamaheswari Rajaji
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - K Yogesh Kumar
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore 562112, India
| | - Rameshkumar Arumugam
- Department of Chemistry, Bannari Amman Institute of Technology, Sathyamangalam, Erode, India; Korea University of Technology and Education, Cheonan-si 31253, Chungcheongnam-do, Republic of Korea
| | - Asma A Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Research Center for Intelligent Medical Devices, Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan.
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16
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Lin CH, Chien MY, Chuang YC, Lai CC, Sun YM, Liu TY. Porous Membranes of Polysulfone and Graphene Oxide Nanohybrids for Vanadium Redox Flow Battery. Polymers (Basel) 2022; 14:polym14245405. [PMID: 36559771 PMCID: PMC9788592 DOI: 10.3390/polym14245405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/28/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Porous nanohybrid membranes of polysulfone (PSF) with graphene oxide (GO) nanosheets (PSF/GO membrane) were developed to serve as proton exchange membranes in a vanadium redox flow battery (VRFB). Various ratios of PSF/GO and thickness were investigated to evaluate the optimal voltage efficiency (VE), coulombic efficiency (CE), and energy efficiency (EE) of the VRFB. The pore size, distribution, and hydrophilicity of PSF/GO membranes were studied using scanning electron microscopy (SEM) images and contact angles. Functional groups of GO were evaluated using Raman spectroscopy. The mechanical properties and thermal stability of PSF/GO membranes were analyzed using a tensile tester and thermogravimetric analysis (TGA), respectively. The results show that the mechanical properties of the PSF porous membrane with GO nanosheets were significantly improved, indicating that the addition of graphene oxide nanosheets consolidated the internal structure of the PSF membrane. Cyclic voltammetry revealed an obviously different curve after the addition of GO nanosheets. The CE of the VRFB in the PSF/GO membrane was significantly higher than that in the pristine PSF membrane, increasing from 80% to 95% at 0.6 wt.% GO addition. Moreover, PSF/GO membranes displayed great chemical stability during long-term operation; thus, they can evolve as potential porous membranes for application in VRFBs for green energy storage.
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Affiliation(s)
- Chien-Hong Lin
- Chemistry Division, Institute of Nuclear Energy Research, Taoyuan City 32546, Taiwan
| | - Ming-Yen Chien
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yi-Cih Chuang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Chao-Chi Lai
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yi-Ming Sun
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan
- Correspondence: (Y.-M.S.); (T.-Y.L.)
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan
- Research Center for Intelligent Medical Devices, Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 243303, Taiwan
- Correspondence: (Y.-M.S.); (T.-Y.L.)
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Yan R, Guo SJ, An X, Jiang LJ, Liu TY, Xue T, Ma HL, Yao K, Shi YX, Han H. [Efficacy and safety of neoadjuvant toripalimab combined with nimotuzumab and chemotherapy in patients with unresectable stage Ⅳ squamous cell carcinoma of penis]. Zhonghua Wai Ke Za Zhi 2022; 60:1093-1099. [PMID: 36480877 DOI: 10.3760/cma.j.cn112139-20220509-00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: To compare the efficacy and safety of neoadjuvant chemotherapy alone or combined with toripalimab and nimotuzumab in patients with unresectable locally advanced or metastatic squamous cell carcinoma of penis. Methods: A total of 33 patients with unresectable squamous cell carcinoma of penis undergoing neoadjuvant chemotherapy alone or combined with toripalimab and nimotuzumab at Sun Yat-sen University Cancer Center from May 2015 to June 2021 were enrolled retrospectively. All the patients were male, with a median age (M(IQR))of 49.0 (13.5) years (range: 30 to 70 years). According to the therapy protocols, patients were divided into the chemotherapy group (16 cases) and the triple combination group (17 cases). Log-rank test was used to compare the progression-free survival and overall survival. χ2 test or Fisher exact method was used to compare the objective response rate, pathological down-stage rate and adverse events between these two groups. Results: The follow-up time was 28.1(19.2) months (range: 1.5 to 33.4 months). Patients of triple combination group were observed significantly longer progression-free survival (30.0 months vs. 8.2 months, χ²=3.998, P=0.046) than those of chemotherapy group. The median overall survival of the triple combination group and chemotherapy group were not reached and 15.2 months (χ²=3.298, P=0.069), respectively. Although there was no significant difference in the subsequent surgical resection rate between these two groups (12/17 vs.11/16, P=1), the objective response rate and the pathological complete response rate in triple combination group were significantly higher than in chemotherapy group (13/17 vs. 6/16, χ²=5.125, P=0.024; 6/7 vs. 0, P=0.001). The main common grade 1 to 2 adverse events in the triple combination group were alopecia (16 cases), anemia (15 cases), and nausea (14 cases). The main common grade 1 to 2 adverse events in the chemotherapy group were anemia (14 cases), alopecia (12 cases), decreased appetite (12 cases), and nausea (11 cases). The incidence of adverse events ≥grade 3 was similar in the triple combination group and chemotherapy group (8/17 vs. 6/16, χ²=0.308, P=0.579). There was no grade 3 adverse event in both groups. Conclusion: Compared with traditional chemotherapy alone, chemotherapy combined with toripalimab and nimotuzumab provides longer progression-free survival and similar toxicity for unresectable stage Ⅳ squamous cell carcinoma of penis.
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Affiliation(s)
- R Yan
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - S J Guo
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - X An
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - L J Jiang
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - T Y Liu
- Department of Experimental Research, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - T Xue
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - H L Ma
- Department of Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - K Yao
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y X Shi
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - H Han
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
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Yang MC, Hardiansyah A, Cheng YW, Liao HL, Wang KS, Randy A, Harito C, Chen JS, Jeng RJ, Liu TY. Reduced graphene oxide nanosheets decorated with core-shell of Fe 3O 4-Au nanoparticles for rapid SERS detection and hyperthermia treatment of bacteria. Spectrochim Acta A Mol Biomol Spectrosc 2022; 281:121578. [PMID: 35797953 DOI: 10.1016/j.saa.2022.121578] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/25/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
In this study, the core-shell of Fe3O4-Au nanoparticles (NPs) were prepared by seeding AuNPs onto Fe3O4 NPs modified with poly-ethylenimine (PEI). Later, Fe3O4-Au NPs were attached to cationic poly(dimethyldiallylammonium chloride) (PDDA)-modified graphene oxide (GO) nanosheets through in situ self-assembly behaviors, termed as Fe3O4-Au@RGO nanocomposites, for surface-enhanced Raman scattering (SERS) detection and hyperthermia treatment of bacteria. The resulting Fe3O4-Au@RGO nanocomposites were evaluated systematically by transmission electron microscope, zeta potential, X-ray diffraction, X-ray photoelectron spectroscopy, and vibrating sample magnetometer. It revealed that the core-shell structured Fe3O4-Au NPs were dispersed homogeneously on the surface of the GO nanosheets. Furthermore, the rapid SERS detection for small biomolecules and bacteria was conducted by Raman spectroscopy. The results showed that the greatest SERS intensity was fne tuned at the weight ratio of Fe3O4-Au/RGO nanosheets was 20/1, displaying the optimal interparticle gap of AuNPs to induce the huge hot-spots effect. The magnetic inductive heating capability of Fe3O4-Au@RGO nanocomposites was produced under high frequency magnetic field exposure and can kill high than 90% of the bacteria at 10 min. Hence, the newly developed Fe3O4-Au@RGO nanocomposites were demonstrated to be viable for SERS detection of biomolecules and microbes and potential applications for magnetically capturing and hyperthermia treatment of bacteria.
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Affiliation(s)
- Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
| | - Andri Hardiansyah
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Banten, Indonesia
| | - Yu-Wei Cheng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
| | - Hung-Liang Liao
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
| | - Kuan-Syun Wang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ahmad Randy
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Tangerang Selatan, Banten 15314, Indonesia
| | - Christian Harito
- Industrial Engineering Department, Faculty of Engineering, Bina Nusantara University, 11480 Jakarta, Indonesia
| | - Jeng-Shiung Chen
- Yottadeft Optoelectronics Technology Co., Ltd., Taipei 10460, Taiwan
| | - Ru-Jong Jeng
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
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19
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Lin SJ, Tang SCJ, Lee YC, Liu TY, Huang TC, Yu RL, Tan CH. Lack of direct association between viral hepatitis and sleep disturbances. Front Med (Lausanne) 2022; 9:951762. [DOI: 10.3389/fmed.2022.951762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/25/2022] [Indexed: 11/15/2022] Open
Abstract
BackgroundIndividuals with chronic viral hepatitis are at increased risk of experiencing poor sleep quality and sleep disturbances. However, it remains unclear whether the sleep disorders associated with viral hepatitis are secondary to the comorbidities related to viral hepatitis or the direct effect of hepatitis viruses on sleep. This study investigated the direct impact of viral hepatitis B and C on sleep quality.MethodsIndividuals with viral hepatitis B or C and their healthy counterparts were recruited for the present study, and they were evaluated with the Parkinson's Disease Sleep Scale-2, the Epworth Sleepiness Scale, and the Pittsburgh Sleep Quality Index in the absence of common comorbidities associated with viral hepatitis.ResultsNeither hepatitis B nor hepatitis C was found to cause significant differences in insomnia symptoms or excessive daytime sleepiness. However, individuals with hepatitis C, but not hepatitis B, tended to be less likely to experience restlessness of the legs or arms at night.ConclusionsThis study suggests that hepatitis viruses B and C may not cause a significant impact on sleep quality and related disorders directly. Sleep disturbances in individuals with chronic viral hepatitis may instead be attributable to hepatic decompensation or the comorbid factors associated with viral hepatitis.
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20
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Juang RS, Wang KS, Cheng YW, Wu WE, Lin YH, Jeng RJ, Huang LY, Yang MC, Liu SH, Liu TY. Intelligent and thermo-responsive Au-pluronic® F127 nanocapsules for Raman-enhancing detection of biomolecules. Spectrochim Acta A Mol Biomol Spectrosc 2022; 279:121475. [PMID: 35696969 DOI: 10.1016/j.saa.2022.121475] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/23/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Thermo-responsive Raman-enhanced nanocapsules were successfully fabricated by Pluronic® F127 (F127) decorated with gold nanoparticles (AuNPs) for surface-enhanced Raman scattering (SERS) detection of biomolecules. F127 nanocapsules changes from hydrophilicity (swelling) to hydrophobicity (de-swelling) when the temperature increases from 15 °C to 37 °C, owing to the lower critical solution temperature (LCST) of F127 is about 26.5 °C. The size of nanocapsules would be enormous shrinking from 160 nm to 20 nm, resulting in a significant decrease in the distance between AuNPs to enhance hot spot effect, which increases the sensitivity of SERS detection. Based on the thermo-sensitive behavior, the ratio of AuNPs and F127 would be manipulated to find the optimal SERS enhancement effect. SERS nanocapsules can rapidly detect biomolecules (adenine and R6G) with limit of detection (LOD) lower than 10-6 M. In addition, the relatively difficult to detect clinical samples, carboxyl-terminal parathyroid hormone fragments (C-PTH), can also be measured by the thermo-responsive SERS nanocapsules developed in this work. It is expected the biomolecules can be adsorbed at low temperature (15 °C), as well as collected and concentrated at high temperature (37 °C) for SERS detection, to increase the sensitivity and stability of SERS detection.
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Affiliation(s)
- Ruey-Shin Juang
- Department of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 33302, Taiwan; Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Kuan-Syun Wang
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Wei Cheng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Wei-En Wu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yu-Hsuan Lin
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Ru-Jong Jeng
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Li-Ying Huang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Shou-Hsuan Liu
- Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
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21
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Rajaji U, M S R, K YK, Al-Kahtani AA, Chen CP, Juang RS, Liu TY. Electrocatalytic oxidation and amperometric determination of sulfasalazine using bimetal oxide nanoparticles-decorated graphene oxide composite modified glassy carbon electrode at neutral pH. Mikrochim Acta 2022; 189:409. [PMID: 36205813 DOI: 10.1007/s00604-022-05498-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 09/13/2022] [Indexed: 10/10/2022]
Abstract
Cube-shaped samarium orthovanadate (SmVO4) nanoparticles were interconnected with a graphene oxide sheet (GOS) using a simple and eco-friendly method to generate a SmVO4@GOS nanocomposite. SmVO4 was characterized using various spectroscopic and microscopic techniques, which confirmed the wrapping of GOS around the SmVO4 nanoparticles. SmVO4@GOS was then used to modify a glassy carbon electrode (GCE), which was evaluated for its electrochemical performance toward the assay of sulfasalazine (SSZ), an antibiotic drug. Cyclic voltammetry and amperometry were both used for the assay of SSZ using the SmVO4@GOS-modified GCE at pH 7. The modified amperometric sensor is more sensitive, with a low detection limit (2.16 nM) and wide linear range of 20 nM-667 μM (Ag/AgCl). The electrochemical oxidation of SSZ was tested with blood serum and urine samples at physiological pH with recoveries in the range 96.1-98.6%. It indicates that the modified electrochemical sensor has good sensitivity and practical applicability toward SSZ detection. In the field of non-enzymatic sensors, SmVO4@GOS/GCE provides a highly promising performance. Therefore, the electrochemical sensors have capacity for extensive analytical applications in biomedical devices.
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Affiliation(s)
- Umamaheswari Rajaji
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Raghu M S
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore, 560103, India
| | - Yogesh Kumar K
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore, 562112, India.,Korea University of Technology and Education, Cheonan-si 31253, Chungcheongnam-do, Cheonan-si, Republic of Korea
| | - Abdullah A Al-Kahtani
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Chih-Ping Chen
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan.
| | - Ruey-Shin Juang
- Department of Chemical and Materials Engineering, Chang Gung University, 259 Wenhua First Road Guishan, Taoyuan, 33302, Taiwan. .,Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan. .,Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, Taishan, New Taipei City, 243303, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan. .,Research Center for Intelligent Medical Devices, Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City, 243303, Taiwan. .,Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, 32003, Taiwan.
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22
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Wu HY, Lin HC, Hung GY, Tu CS, Liu TY, Hong CH, Yu G, Hsu JC. High Sensitivity SERS Substrate of a Few Nanometers Single-Layer Silver Thickness Fabricated by DC Magnetron Sputtering Technology. Nanomaterials (Basel) 2022; 12:nano12162742. [PMID: 36014606 PMCID: PMC9415801 DOI: 10.3390/nano12162742] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 05/10/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is commonly used for super-selective analysis through nanostructured silver layers in the environment, food quality, biomedicine, and materials science. To fabricate a high-sensitivity but a more accessible device of SERS, DC magnetron sputtering technology was used to realize high sensitivity, low cost, a stable deposition rate, and rapid mass production. This study investigated various thicknesses of a silver film ranging from 3.0 to 12.1 nm by field emission scanning electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy. In the rhodamine 6G (R6G) testing irradiated by a He-Ne laser beam, the analytical enhancement factor (AEF) of 9.35 × 108, the limit of detection (LOD) of 10-8 M, and the relative standard deviation (RSD) of 1.61% were better than the other SERS substrates fabricated by the same DC sputtering process because the results showed that the 6 nm thickness silver layer had the highest sensitivity, stability, and lifetime. The paraquat and acetylcholine analytes were further investigated and high sensitivity was also achievable. The proposed SERS samples were evaluated and stored in a low humidity environment for up to forty weeks, and no spectrum attenuation could be detected. Soon, the proposed technology to fabricate high sensitivity, repeatability, and robust SERS substrate will be an optimized process technology in multiple applications.
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Affiliation(s)
- Hsing-Yu Wu
- System Manufacturing Center, National Chung-Shan Institute of Science and Technology, New Taipei City 237209, Taiwan
- Center for Astronomical Physics and Engineering, Department of Optics and Photonics, National Central University, Taoyuan City 320317, Taiwan
| | - Hung-Chun Lin
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Guan-Yi Hung
- Department of International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Chi-Shun Tu
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Chung-Hung Hong
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, 5 Fu-Shing St., Taoyuan 33333, Taiwan
| | - Guoyu Yu
- Department of Engineering and Technology, School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - Jin-Cherng Hsu
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Correspondence: ; Tel.: +886-2-29053765
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23
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Hardiansyah A, Randy A, Dewi RT, Angelina M, Yudasari N, Rahayu S, Ulfah IM, Maryani F, Cheng YW, Liu TY. Magnetic Graphene-Based Nanosheets with Pluronic F127-Chitosan Biopolymers Encapsulated α-Mangosteen Drugs for Breast Cancer Cells Therapy. Polymers (Basel) 2022; 14:polym14153163. [PMID: 35956678 PMCID: PMC9370913 DOI: 10.3390/polym14153163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 07/30/2022] [Accepted: 07/31/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, multifunctional chitosan-pluronic F127 with magnetic reduced graphene oxide (MRGO) nanocomposites were developed through the immobilization of chitosan and an amphiphilic polymer (pluronic F127) onto the MRGO. Physicochemical characterizations and in-vitro cytotoxicity of nanocomposites were investigated through field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, particle size analysis, vibrating sample magnetometer, Raman spectroscopy and resazurin-based in-vitro cytotoxicity assay. FESEM observation shows that the magnetic nanoparticles could tethered on the surface of MRGO, promoting the magnetic properties of the nanocomposites. FTIR identification analysis revealed that the chitosan/pluronic F127 were successfully immobilized on the surface of MRGO. Furthermore, α-mangosteen, as a model of natural drug compound, was successfully encapsulated onto the chitosan/pluronic F127@MRGO nanocomposites. According to in-vitro cytotoxicity assay, α-mangosteen-loaded chitosan/pluronic F127@MRGO nanocomposites could significantly reduce the proliferation of human breast cancer (MFC-7) cells. Eventually, it would be anticipated that the novel α-mangosteen-loaded chitosan/pluronic F127@MRGO nanocomposites could be promoted as a new potential material for magnetically targeting and killing cancer cells.
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Affiliation(s)
- Andri Hardiansyah
- Research Center for Advanced Material, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (S.R.); (I.M.U.)
- Correspondence: (A.H.); (T.-Y.L.)
| | - Ahmad Randy
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (A.R.); (R.T.D.); (M.A.)
| | - Rizna Triana Dewi
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (A.R.); (R.T.D.); (M.A.)
| | - Marissa Angelina
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (A.R.); (R.T.D.); (M.A.)
| | - Nurfina Yudasari
- Research Center for Photonics, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia;
| | - Sri Rahayu
- Research Center for Advanced Material, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (S.R.); (I.M.U.)
| | - Ika Maria Ulfah
- Research Center for Advanced Material, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (S.R.); (I.M.U.)
| | - Faiza Maryani
- Research Center for Advanced Chemistry, National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia;
| | - Yu-Wei Cheng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan;
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
- Research Center for Intelligent Medical Devices, Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 243303, Taiwan
- Correspondence: (A.H.); (T.-Y.L.)
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24
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Zhou QZ, Liu TY, Wei YQ, Dong NN, Guo JF, Li P, Ji M, Niu YL, Wang YJ, Zhang ST. [The role of preventive pancreatic duct stent placement in preventing acute pancreatitis after endoscopic retrograde cholangiopancreatography]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:990-993. [PMID: 35899354 DOI: 10.3760/cma.j.cn112150-20211107-01032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of this study was to investigate the preventive effect of pancreatic duct stent on acute pancreatitis after endoscopic retrograde cholangiopancreatography. A retrospective analysis of the case data of patients who first underwent endoscopic retrograde cholangiopancreatography for choledocholithiasis in the Beijing Friendship Hospital from January 2015 to December 2019 for 5 years. According to whether the pancreatic duct stent was indwelled during the operation, they were divided into pancreatic duct stent group (147 cases) and non-indwelling pancreatic duct stent group (192 cases). The incidence of acute pancreatitis after endoscopic retrograde cholangiopancreatography was compared between the two groups according to COTTON criteria. Independent sample t test, Pearson Chi-square test (χ2) and Fisher's exact test were used to compare groups' differences. There were 2 cases of acute pancreatitis in the pancreatic duct stent group, all of which improved after 48 hours. There were 22 cases of acute pancreatitis in the non-indwelling pancreatic duct stent group, of which 20 cases improved within 48 hours, and the other 2 cases had severe pancreatitis, which improved and discharged after 30 days of treatment. There was significant difference in the incidence of acute pancreatitis between the pancreatic duct stenting group (1.4%) and the group without placement of pancreatic duct stents (11.5%) (χ²=12.905,P<0.001). In conclusion, Pancreatic duct stent may be an effective method to prevent PEP.
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Affiliation(s)
- Q Z Zhou
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - T Y Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y Q Wei
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - N N Dong
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - J F Guo
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - P Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - M Ji
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y L Niu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y J Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - S T Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
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25
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Cheng YW, Lin YT, Liu KH, Chen JS, Wang SH, Liu TY. In situ and initiator-free atmospheric plasma-induced functionalization of poly(ethylene glycol) methacrylate on nonwoven cosmetic masks for the evaluation of the bacteria inhibitory effect. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Chen YF, Wang CH, Chang WR, Li JW, Hsu MF, Sun YS, Liu TY, Chiu CW. Hydrophilic-Hydrophobic Nanohybrids of AuNP-Immobilized Two-Dimensional Nanomica Platelets as Flexible Substrates for High-Efficiency and High-Selectivity Surface-Enhanced Raman Scattering Microbe Detection. ACS Appl Bio Mater 2022; 5:1073-1083. [PMID: 35195391 DOI: 10.1021/acsabm.1c01151] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A flexible hybrid substrate was developed by affixing gold nanoparticles (AuNPs) onto the surface of two-dimensional nanomica platelets (NMPs). The substrate was successfully used in biosensors with high efficiency and high selectivity through surface-enhanced Raman scattering (SERS). By controlling the amphiphilicity of the hybrid substrate, the flexible substrate was made highly selective toward biomolecules. Four different SERS substrate systems were constructed, including intercalated mica, exfoliated NMPs, hydrophilic exfoliated NMPs, and hydrophobic exfoliated NMPs. NMPs were only 1 nm thick. AuNPs adsorbed on both sides of NMPs and thus created excellent three-dimensional hot junction effects in the z-axis direction. For the detection of adenine in DNA, a satisfactory Raman enhancement factor (EF) of up to 8.9 × 106 was achieved with the detection limit as low as 10-8 M. Subsequently, the AuNP/NMP hybrids were adopted to rapidly detect hydrophilic Staphylococcus hominis and hydrophobic Escherichia coli. The AuNP/PIB-POE-PIB/NMP nanohybrid was concurrently hydrophilic and hydrophobic. This amphiphilic property greatly enhanced the detection selectivity and signal intensity for hydrophilic or hydrophobic bacteria. Overall, AuNPs/PIB-POE-PIB/NMPs developed as SERS substrates enable rapid, sensitive biodetection.
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Affiliation(s)
- Yan-Feng Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chih-Hao Wang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Wen-Ru Chang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Jia-Wun Li
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Mao-Feng Hsu
- Research & Development Division, Zhen Ding Technology Holding Limited, Taoyuan 33754, Taiwan
| | - Ya-Sen Sun
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
| | - Chih-Wei Chiu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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27
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Wang YT, Liu TY, Shen CH, Lin SY, Hung CC, Hsu LC, Chen GC. K48/K63-linked polyubiquitination of ATG9A by TRAF6 E3 ligase regulates oxidative stress-induced autophagy. Cell Rep 2022; 38:110354. [PMID: 35196483 DOI: 10.1016/j.celrep.2022.110354] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 11/23/2021] [Accepted: 01/19/2022] [Indexed: 12/31/2022] Open
Abstract
Excessive generation and accumulation of highly reactive oxidizing molecules causes oxidative stress and oxidative damage to cellular components. Accumulating evidence indicates that autophagy diminishes oxidative damage in cells and maintains redox homeostasis by degrading and recycling intracellular damaged components. Here, we show that TRAF6 E3 ubiquitin ligase and A20 deubiquitinase coordinate to regulate ATG9A ubiquitination and autophagy activation in cells responding to oxidative stress. The ROS-dependent TRAF6-mediated non-proteolytic, K48/63-linked ubiquitination of ATG9A enhances its association with Beclin 1 and the assembly of VPS34-UVRAG complex, thereby stimulating autophagy. Notably, expression of the ATG9A ubiquitination mutants impairs ROS-induced VPS34 activation and autophagy. We further find that lipopolysaccharide (LPS)-induced ROS production also stimulates TRAF6-mediated ATG9A ubiquitination. Ablation of ATG9A causes aberrant TLR4 endosomal trafficking and decreases IRF-3 phosphorylation in LPS-stimulated macrophages. Our findings provide important insights into how K48/K63-linked ubiquitination of ATG9A contributes to the regulation of oxidative stress-induced autophagy.
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Affiliation(s)
- Yi-Ting Wang
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Taipei 115, Taiwan; Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 106, Taiwan
| | - Ting-Yu Liu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Chia-Hsing Shen
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Shu-Yu Lin
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Taipei 115, Taiwan
| | - Chin-Chun Hung
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Taipei 115, Taiwan
| | - Li-Chung Hsu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan; Center of Precision Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Guang-Chao Chen
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Taipei 115, Taiwan; Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 106, Taiwan.
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Liu TY, Tang CX, Zhou F, Li JH, Xu PP, Liu CY, Zhang LJ. [Effect of measurement sites on coronary computed tomography angiography-derived instantaneous wave-free ratio in the diagnosis of coronary stenosis ischemia]. Zhonghua Yi Xue Za Zhi 2021; 101:3208-3213. [PMID: 34689532 DOI: 10.3760/cma.j.cn112137-20210803-01723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the influence of measurement sites on the diagnostic performance of coronary computed tomography angiography (CCTA) -derived instantaneous wave-free ratio (iFRCT) for coronary stenosis ischemia. Methods: A total of 44 patients, including 27 males and 17 females aged from 44 to 83 (59±90) years, who underwent coronary computed tomography angiography (CCTA) and invasive fractional flow reserve (FFR) in the Department of Radiology, Eastern Theater Command General Hospital from February 2009 to May 2018 were retrospectively collected. Based on CCTA images, iFRCT values at different locations (stenosis, proximal downstream of stenosis, 2 cm downstream of stenosis, 3 cm downstream of stenosis, and 4 cm downstream of stenosis) were calculated through fluid mechanics simulation. With invasive FFR≤0.80 as the reference standard, receiver operating characteristic (ROC) was used to analyze and evaluate the diagnostic performance of iFRCT in different sites. Bland-Altman and spearman correlation coefficient were used to analyze the consistency between iFRCT and invasive FFR. Intraclass correlation coefficient (ICC) and spearman correlation coefficient were used to test the repeatability of iFRCT. Results: iFRCT values at the proximal downstream of the stenosis (approximately 1 cm downstream of the stenosis) was superior to other measurement sites in the diagnosis of coronary ischemic specific stenosis. The threshold, area under the curve, sensitivity, specificity and accuracy of iFRCT at the stenosis were 0.91, 0.87 (95%CI:0.76~0.96), 82% (95%CI:48%~97%), 76% (95%CI:57%~88%) and 77% (95%CI: 63%~87%), respectively. Bland-Altman analysis showed that the mean differences between iFRCT and FFR at the proximal downstream of the stenosis was 0.07 (95%LoA: 0.06~0.09) and Spearman correlation coefficient was 0.53 (P<0.001). At the proximal downstream of the stenosis, the intraobserver ICC of iFRCT was 0.92 (95%CI: 0.85 ~0.95), the correlation coefficient was 0.85 (P<0.001); the interobserver ICC was 0.84 (95%CI: 0.60~0.94), correlation coefficient was 0.75 (P<0.001), demonstrating good repeatability between iFRCT and FFR. Conclusion: With the invasive FFR value as reference standard, iFRCT had a high diagnostic performance in detecting myocardial ischemia and the best measurement site was the proximal downstream of the stenosis.
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Affiliation(s)
- T Y Liu
- The First School of Clinical Medicine, Southern Medical University/Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - C X Tang
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - F Zhou
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - J H Li
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - P P Xu
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - C Y Liu
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - L J Zhang
- The First School of Clinical Medicine, Southern Medical University/Department of Diagnostic Radiology, General Hospital of Eastern Theater Command, Nanjing 210002, China
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Li JH, Tang CX, Liu TY, Chen YC, Zhou CS, Lu GM, Zhang JY, Zhang LJ, Yang G. [Association of coronary perivascular fat attenuation index, the parameters of plaque and fractional flow reserve]. Zhonghua Yi Xue Za Zhi 2021; 101:3214-3220. [PMID: 34689533 DOI: 10.3760/cma.j.cn112137-20210414-00889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the association of coronary perivascular fat attenuation index (FAI), the parameters of plaque and fractional flow reserve (FFR). Methods: A total of 113 patients (with 141 plaques) (78 males and 35 females, age from 40 to 83 years) with stable coronary artery disease were retrospectively collected from Jingling Hospital and Shanghai Sixth People's Hospital. All the patients underwent coronary CT angiography and invasive FFR examinations. The quantitative and qualitative parameters of plaque and vessel (such as the length and volume of plaque, the characteristics of plaque and high-risk plaque) and the FAI around the plaque were measured. The patients were divided into positive FAI group (n=46) and negative FAI group (n=66) according to the standard of whether the threshold of FAI≥ -70 HU. The quantitative indexes, including age, the length and volume of plaque, minimal lumen area (MLA) and FAI, as well as the qualitative indexed, including the characteristics of plaque, the number and characteristic of high-risk plaque and the number of patients and plaque with positive FFR were compared between the two groups. Further, logistic regression analysis was performed to analyze the correlation among myocardial ischemia, age, the length of plaque, minimal lumen area (MLA), FAI and so on. ROC curve was used for evaluating the performance of each parameter. Results: Compared to the negative FAI group, positive FAI group had lower MLA (2.00±1.33 mm2 vs 4.13±2.41 mm2, P<0.001). The proportion of patients and vessels with FFR<0.75 in positive FAI group were significantly higher than that in negative FAI group (21.3% vs 4.5%, P=0.006; 23.2% vs 8.2%, P=0.016). The FAI between high-risk plaque and non-high-risk plaque had no significant difference (21.2% vs 16.1%, P=0.451). FAI predicted myocardial ischemia (AUC=0.666, P=0.021) and significantly improved the prediction efficiency of complex model(0.915 vs 0.951,P=0.033). Conclusion: Lower MLA and higher incidence of myocardial ischemia were associated with patients with higher FAI. In addition, FAI has a certain prediction efficiency and can provide incremental value for the determination of myocardial ischemia.
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Affiliation(s)
- J H Li
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - C X Tang
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - T Y Liu
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Y C Chen
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - C S Zhou
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - G M Lu
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - J Y Zhang
- Department of Radiology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - L J Zhang
- Department of Diagnostic Radiology, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Guifen Yang
- Department of Nuclear Medicine, General Hospital of Eastern Theater Command/Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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Wang CH, Liu TY, Chiang WC, Tang SC, Tsai LK, Lee CW, Lin YH, Jeng JS, Ma MHM, Hsieh MJ, Lee YC. Expanding resources of endovascular thrombectomy: An optimization model. J Formos Med Assoc 2021; 121:978-985. [PMID: 34353719 DOI: 10.1016/j.jfma.2021.07.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/03/2021] [Accepted: 07/15/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND/PURPOSE Recently optimized models for selecting the locations of hospitals capable of providing endovascular thrombectomy (EVT) did not consider the accuracy of the prehospital stroke scale assessment and possibility of secondary transport. Our study aimed to propose a new model for selecting existing hospitals with intravenous thrombolysis capability to become EVT-capable hospitals. METHODS A sequential order was provided to upgrade hospitals providing intravenous thrombolysis, using a mixed integer programming model based on current medical resource allocation. In addition, we drafted a centralized plan to redistribute existing EVT resources by redetermining locations of EVT-capable hospitals. Using historical data of 7679 on-scene patients with suspected stroke, the model was implemented to determine the hospital that maximizes the number of patients receiving EVT treatment within call-to-definitive-treatment time. RESULTS All suspected stroke patients were sent to EVT-capable hospitals directly under the current medical resource allocation model. After upgrading one additional hospital to become an EVT-capable hospital, the percentage of patients receiving definitive treatment within the standard call-to-definitive-treatment time was elevated from 68.82% to 72.97%. In the model, assuming that there is no hospital providing EVT, all patients suspected of stroke will be sent to EVT-capable hospitals directly after upgrading three or more hospitals to be able to provide treatment. CONCLUSION All patients eligible for acute stroke treatment are sent to EVT-capable hospitals in the simulation under the current medical resource allocation model. This model can be utilized to provide insights for capacity redistribution in other regions.
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Affiliation(s)
- Chun-Han Wang
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
| | - Ting-Yu Liu
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
| | - Wen-Chu Chiang
- Department of Emergency Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Sung-Chun Tang
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Kai Tsai
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Wei Lee
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Heng Lin
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Jiann-Shing Jeng
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Matthew Huei-Ming Ma
- Department of Emergency Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Ming-Ju Hsieh
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan.
| | - Yu-Ching Lee
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan.
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Wu JQ, Mao LB, Liu LF, Li YM, Wu J, Yao J, Zhang FH, Liu TY, Yuan L. Identification of key genes and pathways of BMP-9-induced osteogenic differentiation of mesenchymal stem cells by integrated bioinformatics analysis. J Orthop Surg Res 2021; 16:273. [PMID: 33879213 PMCID: PMC8059242 DOI: 10.1186/s13018-021-02390-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/30/2021] [Indexed: 12/23/2022] Open
Abstract
Background The purpose of present study was to identify the differentially expressed genes (DEGs) associated with BMP-9-induced osteogenic differentiation of mesenchymal stem cells (MSCs) by using bioinformatics methods. Methods Gene expression profiles of BMP-9-induced MSCs were compared between with GFP-induced MSCs and BMP-9-induced MSCs. GSE48882 containing two groups of gene expression profiles, 3 GFP-induced MSC samples and 3 from BMP-9-induced MSCs, was downloaded from the Gene Expression Omnibus (GEO) database. Then, DEGs were clustered based on functions and signaling pathways with significant enrichment analysis. Pathway enrichment analysis using the Kyoto Encyclopedia of Genes and Genomes (KEGG) demonstrated that the identified DEGs were potentially involved in cytoplasm, nucleus, and extracellular exosome signaling pathway. Results A total of 1967 DEGs (1029 upregulated and 938 downregulated) were identified from GSE48882 datasets. R/Bioconductor package limma was used to identify the DEGs. Further analysis revealed that there were 35 common DEGs observed between the samples. GO function and KEGG pathway enrichment analysis, among which endoplasmic reticulum, protein export, RNA transport, and apoptosis was the most significant dysregulated pathway. The result of protein-protein interaction (PPI) network modules demonstrated that the Hspa5, P4hb, Sec61a1, Smarca2, Pdia3, Dnajc3, Hyou1, Smad7, Derl1, and Surf4 were the high-degree hub nodes. Conclusion Taken above, using integrated bioinformatical analysis, we have identified DEGs candidate genes and pathways in BMP-9 induced MSCs, which could improve our understanding of the key genes and pathways for BMP-9-induced osteogenic of MSCs.
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Affiliation(s)
- Jia-Qi Wu
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Lin-Bo Mao
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China.
| | - Ling-Feng Liu
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Yong-Mei Li
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Jian Wu
- Institute Office, Jingjiang People's Hospital, Jingjiang, China
| | - Jiao Yao
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Feng-Huan Zhang
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Ting-Yu Liu
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
| | - Ling Yuan
- Rehabilitation Department, Jingjiang People's Hospital, No.28, Zhongzhou road, Jingjiang, Taizhou, 214500, Jiangsu Province, China
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Abstract
Increasing patient loyalty through improved health care quality and
patient–provider relationships becomes the key factor in medical providers’
successes. This study explored the mediated relationship of patients’ perceived
value, patient commitment, and patient loyalty and the moderating effect of
patient trust on the mediated relationship. A cross-sectional research design
was adopted. Mediation and moderated mediation were tested using the PROCESS
macro v3.5 for the SPSS supplement. Convenience sampling was used for the
distribution of questionnaires to members of the public with experience of
seeking medical attention in Taiwan. Among the 254 valid questionnaires
recovered, 59.4% of the respondents were male, 38.6% were married, 90.2% were in
the 20 to 49 year age range, and 54.7% had a bachelor’s degree or above. This
study indicated a significant mediated relationship among patients’ perceived
value of medical services, commitment to the patient–provider relationship, and
patient loyalty. Furthermore, when the patient demonstrated higher levels of
trust in a healthcare provider, the relationship of perceived value, commitment,
and patient loyalty was also enhanced. This study discussed and demonstrated the
effect of perceived value, trust, and commitment on patient loyalty. The
research suggests that improving patient loyalty benefits sustainable operation
of medical providers and the treatment effects for patients.
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Affiliation(s)
| | - Pey-Lan Du
- National Quemoy University, Kinmen County
| | | | - Ting-Yu Liu
- National University of Kaohsiung, Kaohsiung City
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Liu TY, Tsai SH, Chen JW, Wang YC, Hu ST, Chen YY. Mab_3083c Is a Homologue of RNase J and Plays a Role in Colony Morphotype, Aggregation, and Sliding Motility of Mycobacterium abscessus. Microorganisms 2021; 9:microorganisms9040676. [PMID: 33805851 PMCID: PMC8064342 DOI: 10.3390/microorganisms9040676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/14/2021] [Accepted: 03/19/2021] [Indexed: 12/17/2022] Open
Abstract
Mycobacterium abscessus is an opportunistic pathogen causing human diseases, especially in immunocompromised patients. M. abscessus strains with a rough morphotype are more virulent than those with a smooth morphotype. Morphotype switch may occur during a clinical infection. To investigate the genes involved in colony morphotype switching, we performed transposon mutagenesis in a rough clinical strain of M. abscessus. A morphotype switching mutant (smooth) named mab_3083c::Tn was obtained. This mutant was found to have a lower aggregative ability and a higher sliding motility than the wild type strain. However, its glycopeptidolipid (GPL) content remained the same as those of the wild type. Complementation of the mutant with a functional mab_3083c gene reverted its morphotype back to rough, indicating that mab_3083c is associated with colony morphology of M. abscessus. Bioinformatic analyses showed that mab_3083c has a 75.4% identity in amino acid sequence with the well-characterized ribonuclease J (RNase J) of M. smegmatis (RNase JMsmeg). Complementation of the mutant with the RNase J gene of M. smegmatis also switched its colony morphology from smooth back to rough. These results suggest that Mab_3083c is a homologue of RNase J and involved in regulating M. abscessus colony morphotype switching.
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Affiliation(s)
- Ting-Yu Liu
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei 112, Taiwan; (T.-Y.L.); (S.-H.T.)
| | - Sheng-Hui Tsai
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei 112, Taiwan; (T.-Y.L.); (S.-H.T.)
| | - Jenn-Wei Chen
- Department of Microbiology and Immunology, College of Medicine, National Cheng-Kung University, Tainan 701, Taiwan;
- Institute of Basic Medical Sciences, College of Medicine, National Cheng-Kung University, Tainan 701, Taiwan
| | - Yu-Ching Wang
- Department of Biochemical Science and Technology, National Chiayi Univeristy, Chiayi City 600, Taiwan;
| | - Shiau-Ting Hu
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei 112, Taiwan; (T.-Y.L.); (S.-H.T.)
- Correspondence: (S.-T.H.); (Y.-Y.C.)
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi Univeristy, Chiayi City 600, Taiwan;
- Correspondence: (S.-T.H.); (Y.-Y.C.)
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Wang TQ, Jia YQ, Liu TY, Liu YF, Cao ZP, Zhu BL. Application of Hollow Fiber Ultrafiltration Technology in the Detection of Total IgE of Hemolytic Blood after Death. Fa Yi Xue Za Zhi 2020; 36:337-340. [PMID: 32705846 DOI: 10.12116/j.issn.1004-5619.2020.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To investigate the treatment effect of hollow fiber ultrafiltration technology on hemolytic samples and the differences between IgE concentration and serum concentration before hemolysis in ultrafiltrate. Methods The 33 postmortem blood samples of non-frozen corpses within 72 hours after death were collected, 4 mL blood was taken from each case, among which 1 mL was centrifuged to get serum, and the remaining 3 mL blood was frozen-thawed 3-5 times to cause complete hemolysis. The 2 mL hemolytic samples were processed by hollow fiber ultrafiltration to obtain ultrafiltrate. The hemoglobin concentration in serum, complete hemolytic sample and ultrafiltrate was determined by Van-Zij solution-cyanated methemoglobin assay method, and the total IgE in serum and ultrafiltrate was determined by electrochemical luminescence method. Results The hemoglobin concentration in ultrafiltrate was significantly lower than that in complete hemolytic samples (P<0.05). There was a good correlation between the total IgE detection values of ultrafiltrate and serum (r=0.984). The difference between the serum and the value of IgE in ultrafiltrate after correction had no statistical significance, and the differences between the two in positive rates had no statistical significance (P>0.05). Conclusion Ultrafiltration technology has a good treatment effect on complete hemolytic samples, and the correction value of ultrafiltrate detection is close to the serum level before hemolysis, and therefore, it can be applied to the detection of total IgE of frozen corpse hemolytic samples.
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Affiliation(s)
- T Q Wang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - Y Q Jia
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - T Y Liu
- The Third Clinical Department, China Medical University, Shenyang 110122, China
| | - Y F Liu
- The Third Clinical Department, China Medical University, Shenyang 110122, China
| | - Z P Cao
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
| | - B L Zhu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110122, China
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He ZX, Song HF, Liu TY, Ma J, Xing ZK, Yin YY, Liu L, Zhang YN, Zhao YF, Yu HL, He XX, Guo WX, Zhu XJ. HuR in the Medial Prefrontal Cortex is Critical for Stress-Induced Synaptic Dysfunction and Depressive-Like Symptoms in Mice. Cereb Cortex 2020; 29:2737-2747. [PMID: 30843060 DOI: 10.1093/cercor/bhz036] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/16/2022] Open
Abstract
Chronic stress has been observed to increase the risk of developing depression and induce neuronal alterations of synaptic plasticity, yet the underlying molecular mechanisms remain unclear. Here, we found that the ubiquitously expressed RNA-binding protein HuR was up-regulated in the medial prefrontal cortex (mPFC) of mice following chronic stress. In adult mice, AAV-Cre-mediated knockout of HuR in the mPFC prevented anxiety-like and depression-like behaviors induced by chronic stress. HuR was also required for the stress-induced dendritic spine loss and synaptic transmission deficits. Moreover, HuRflox/flox;Nex-Cre mice, which induce HuR loss of function from embryonic development, exhibited enhanced synaptic functions. Notably, we ascertained RhoA signaling to be regulated by HuR and involved in the modulation of structural synaptic plasticity in response to chronic stress. Our results demonstrate HuR is a critical modulator for the regulation of stress-induced synaptic plasticity alterations and depression, providing a potential therapeutic target for the treatment of depressive disorders.
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Affiliation(s)
- Zi-Xuan He
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Hui-Fang Song
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Ting-Yu Liu
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Jun Ma
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Zhen-Kai Xing
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Yue-Yue Yin
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Lin Liu
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Yan-Ning Zhang
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Yi-Fei Zhao
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Hua-Li Yu
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Xiao-Xiao He
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
| | - Wei-Xiang Guo
- State Key Laboratory for Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing, China
| | - Xiao-Juan Zhu
- Key laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, China
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Fu CC, Hsiao YS, Ke JW, Syu WL, Liu TY, Liu SH, Juang RS. Adsorptive removal of p-cresol and creatinine from simulated serum using porous polyethersulfone mixed-matrix membranes. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116884] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hsu CC, Cheng YW, Liu CC, Peng XY, Yung MC, Liu TY. Anti-Bacterial and Anti-Fouling Capabilities of Poly(3,4-Ethylenedioxythiophene) Derivative Nanohybrid Coatings on SUS316L Stainless Steel by Electrochemical Polymerization. Polymers (Basel) 2020; 12:polym12071467. [PMID: 32629863 PMCID: PMC7407191 DOI: 10.3390/polym12071467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/23/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022] Open
Abstract
We have successfully fabricated poly(3,4-ethylenedioxythiophene) (PEDOT) derivative nanohybrid coatings on flexible SUS316L stainless steel by electrochemical polymerization, which can offer anti-fouling and anti-bacterial capabilities. PEDOT derivative nanohybrids were prepared from polystyrene sulfonates (PSS) and graphene oxide (GO) incorporated into a conducting polymer of PEDOT. Additionally, the negative charge of the PEDOT/GO substrate was further modified by poly-diallyldimethylammonium chloride (PDDA) to form a positively charged surface. These PEDOT derivative nanohybrid coatings could provide a straightforward means of controlling the surface energy, roughness, and charges with the addition of various derivatives in the electrochemical polymerization and electrostatically absorbed process. The characteristics of the PEDOT derivative nanohybrid coatings were evaluated by Raman spectroscopy, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle, and surface potential (zeta potential). The results show that PEDOT/PSS and PEDOT/GO nanohybrid coatings exhibit excellent anti-fouling capability. Only 0.1% of bacteria can be adhered on the surface due to the lower surface roughness and negative charge surface by PEDOT/PSS and PEDOT/GO modification. Furthermore, the anti-bacterial capability (7 mm of inhibition zone) was observed after adding PDDA on the PEDOT/GO substrates, suggesting that the positive charge of the PEDOT/GO/PDDA substrate can effectively kill bacteria (Staphylococcus aureus). Given their anti-fouling and anti-bacterial capabilities, PEDOT derivative nanohybrid coatings have the potential to be applied to biomedical devices such as cardiovascular stents and surgical apparatus.
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Affiliation(s)
- Chuan-Chih Hsu
- Division of Cardiovascular Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan;
| | - Yu-Wei Cheng
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (C.-C.L.); (X.-Y.P.)
- Correspondence: (Y.-W.C.); (M.-C.Y.); (T.-Y.L.)
| | - Che-Chun Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (C.-C.L.); (X.-Y.P.)
| | - Xin-Yao Peng
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (C.-C.L.); (X.-Y.P.)
| | - Ming-Chi Yung
- Department of Cardiovascular Surgery, Taiwan Adventist Hospital, and School of Medicine, National Yang Ming University, Taipei 105, Taiwan
- Correspondence: (Y.-W.C.); (M.-C.Y.); (T.-Y.L.)
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (C.-C.L.); (X.-Y.P.)
- Correspondence: (Y.-W.C.); (M.-C.Y.); (T.-Y.L.)
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Lin CH, Zhuang YD, Tsai DG, Wei HJ, Liu TY. Performance Enhancement of Vanadium Redox Flow Battery by Treated Carbon Felt Electrodes of Polyacrylonitrile using Atmospheric Pressure Plasma. Polymers (Basel) 2020; 12:polym12061372. [PMID: 32570983 PMCID: PMC7362188 DOI: 10.3390/polym12061372] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 11/22/2022] Open
Abstract
A high-performance carbon felt electrode for all-vanadium redox flow battery (VRFB) systems is prepared via low-temperature atmospheric pressure plasma treatment in air to improve the hydrophilicity and surface area of bare carbon felt of polyacrylonitrile and increase the contact potential between vanadium ions, so as to reduce the overpotential generated by the electrochemical reaction gap. Brunauer-Emmett-Teller (BET) surface area of the modified carbon felt is, significantly, five times higher than that of the pristine felt. The modified carbon felt exhibits higher energy efficiency (EE) and voltage efficiency (VE) in a single cell VRFB test at the constant current density of 160 mA cm−2, and also maintains good performance at low temperatures. Moreover, the cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analysis results show that the resistance between electrolyte and carbon felt electrode decreased. As a result, owing to the increased reactivity of the vanadium ion on the treated carbon felt, the efficiency of the VRFB with the plasma-modified carbon felt is much higher and demonstrates better capacity under a 100-cycle constant current charge-discharge test.
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Affiliation(s)
- Chien-Hong Lin
- Institute of Nuclear Energy Research, Longtan 30546, Taiwan; (Y.-D.Z.); (D.-G.T.); (H.-J.W.)
- Correspondence: (C.-H.L.); (T.-Y.L.)
| | - Yu-De Zhuang
- Institute of Nuclear Energy Research, Longtan 30546, Taiwan; (Y.-D.Z.); (D.-G.T.); (H.-J.W.)
| | - Ding-Guey Tsai
- Institute of Nuclear Energy Research, Longtan 30546, Taiwan; (Y.-D.Z.); (D.-G.T.); (H.-J.W.)
| | - Hwa-Jou Wei
- Institute of Nuclear Energy Research, Longtan 30546, Taiwan; (Y.-D.Z.); (D.-G.T.); (H.-J.W.)
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- Correspondence: (C.-H.L.); (T.-Y.L.)
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Sun XM, Zhang LL, Li S, Jiang HH, Xu JS, Xu S, Liu TY. [The clinical study of ocular vestibular evoked myogenic potential on three eye positions]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:395-399. [PMID: 32306639 DOI: 10.3760/cma.j.cn115330-20190505-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of the ocular vestibular evoked myogenic potential on three different eye positions and to explore the appropriate eye position for oVEMP. Methods: 15 patients (30 ears) with vertigo who underwent oVEMP test from December 2017 to May 2018 were selected as the patient group, including seven males and eight females, with an average age of (51±13) years. Another 22 (44 ears) healthy young people were recruited into the control group, including 10 males and 12 females, with an average age of (23±5) years. oVEMPs were measured on the following three eye positions respectively: 30 degrees straight up(upper median position),45 degrees upper right(upper right position), and 45 degrees upper left(upper left position). oVEMP elicitation rate, oVEMP latencies, amplitudes and interaural amplitude asymmetry ratio were analyzed by SPSS 23.0 statistical software. Results: There was no statistical significance (P>0.05) in the oVEMP elicitation rate, oVEMP latency, amplitude and asymmetry ratio on the three eye positions among the control group, the patient group and the overall subjects. Conclusions: The three eye positions can be used to detect oVEMP in clinic. There is no difference in the extraction rate and waveform characteristics. When one of the eye positions is difficult to gaze or not easy to obtain the coincidence curve, the other two can be used to obtain the ideal oVEMP curves as well.
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Affiliation(s)
- X M Sun
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - L L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - S Li
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - H H Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - J S Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - S Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
| | - T Y Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical College, Yantai 264000, China
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Hardiansyah A, Yang MC, Liao HL, Cheng YW, Destyorini F, Irmawati Y, Liu CM, Yung MC, Hsu CC, Liu TY. Magnetic Graphene-Based Sheets for Bacteria Capture and Destruction Using a High-Frequency Magnetic Field. Nanomaterials (Basel) 2020; 10:nano10040674. [PMID: 32260211 PMCID: PMC7221870 DOI: 10.3390/nano10040674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 03/23/2020] [Accepted: 03/29/2020] [Indexed: 11/16/2022]
Abstract
Magnetic reduced graphene oxide (MRGO) sheets were prepared by embedding Fe3O4 nanoparticles on polyvinylpyrrolidone (PVP) and poly(diallyldimethylammonium chloride) (PDDA)-modified graphene oxide (GO) sheets for bacteria capture and destruction under a high-frequency magnetic field (HFMF). The characteristics of MRGO sheets were evaluated systematically by transmission electron microscopy (TEM), scanning electron microscopy (SEM), zeta potential measurement, X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and X-ray photoelectron spectroscopy (XPS). TEM observation revealed that magnetic nanoparticles (8–10 nm) were dispersed on MRGO sheets. VSM measurements confirmed the superparamagnetic characteristics of the MRGO sheets. Under HFMF exposure, the temperature of MRGO sheets increased from 25 to 42 °C. Furthermore, we investigated the capability of MRGO sheets to capture and destroy bacteria (Staphylococcus aureus). The results show that MRGO sheets could capture bacteria and kill them through an HFMF, showing a great potential in magnetic separation and antibacterial application.
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Affiliation(s)
- Andri Hardiansyah
- Research Center for Physics, Indonesian Institute of Sciences, Tangerang Selatan 15314, Indonesia; (A.H.); (F.D.); (Y.I.)
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (M.-C.Y.); (H.-L.L.)
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (M.-C.Y.); (H.-L.L.)
| | - Hung-Liang Liao
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (M.-C.Y.); (H.-L.L.)
| | - Yu-Wei Cheng
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (Y.-W.C.); (C.-M.L.)
| | - Fredina Destyorini
- Research Center for Physics, Indonesian Institute of Sciences, Tangerang Selatan 15314, Indonesia; (A.H.); (F.D.); (Y.I.)
| | - Yuyun Irmawati
- Research Center for Physics, Indonesian Institute of Sciences, Tangerang Selatan 15314, Indonesia; (A.H.); (F.D.); (Y.I.)
| | - Chi-Ming Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (Y.-W.C.); (C.-M.L.)
| | - Ming-Chi Yung
- Department of Cardiovascular Surgery, Taiwan Adventist Hospital, and School of Medicine, National Yang Ming University, Taipei 105, Taiwan;
| | - Chuan-Chih Hsu
- Division of Cardiovascular Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
- Correspondence: (C.-C.H.); (T.-Y.L.)
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan; (Y.-W.C.); (C.-M.L.)
- Correspondence: (C.-C.H.); (T.-Y.L.)
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Zhou QH, Han H, Lu JB, Liu TY, Huang KB, Deng CZ, Li ZS, Chen JP, Yao K, Qin ZK, Liu ZW, Li YH, Guo SJ, Ye YL, Zhou FJ, Liu RY. Up-regulation of indoleamine 2,3-dioxygenase 1 (IDO1) expression and catalytic activity is associated with immunosuppression and poor prognosis in penile squamous cell carcinoma patients. Cancer Commun (Lond) 2020; 40:3-15. [PMID: 32125093 PMCID: PMC7163927 DOI: 10.1002/cac2.12001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
Background Indoleamine 2,3‐dioxygenase 1 (IDO1) and tryptophan (Trp) catabolism have been demonstrated to play an important role in tumor immunosuppression. This study examined the expression and catalytic activity of IDO1 in penile squamous cell carcinoma (PSCC) and explored their clinical significance. Methods IDO1 expression level, serum concentrations of Trp and kynurenine (Kyn) were examined in 114 PSCC patients by immunohistonchemistry and solid‐phase extraction‐liquid chromatography‐tandem mass spectrometry. The survival was analyzed using Kaplan‐Meier method and the log‐rank test. Hazard ratio of death was analyzed via univariate and multivariate Cox regression. Immune cell types were defined by principal component analysis. The correlativity was assessed by Pearson's correlation analysis. Results The expression level of IDO1 in PSCC cells was positively correlated with serum Kyn concentration and Kyn/Trp radio (KTR; both P < 0.001) but negatively correlated with serum Trp concentration (P = 0.001). Additionally, IDO1 up‐regulation in cancer cells and the increase of serum KTR were significantly associated with advanced N stage (both P < 0.001) and high pathologic grade (P = 0.008 and 0.032, respectively). High expression level of IDO1 in cancer cells and serum KTR were associated with short disease‐specific survival (both P < 0.001). However, besides N stage (hazard radio [HR], 6.926; 95% confidence interval [CI], 2.458‐19.068; P < 0.001) and pathologic grade (HR, 2.194; 95% CI, 1.021‐4.529; P = 0.038), only serum KTR (HR, 2.780; 95% CI, 1.066‐7.215; P = 0.036) was an independent predictor for PSCC prognosis. IDO1 expression was positively correlated with the expression of interferon‐γ (IFNγ, P < 0.001) and immunosuppressive markers (programmed cell death protein 1, cytotoxic T‐lymphocyte‐associated protein 4 and programmed death‐ligand 1 and 2; all P < 0.05), and the infiltration of immune cells (including cytotoxic T lymphocytes, regulatory T lymphocytes, tumor‐associated macrophages, and myeloid‐derived suppressor cells; all P < 0.001) in PSCC tissues. Furthermore, the expression of IDO1 was induced by IFNγ in a dose‐dependent manner in PSCC cells. Conclusions IFNγ‐induced IDO1 plays a crucial role in immunoediting and immunosuppression in PSCC. Additionally, serum KTR, an indicator of IDO1 catabolic activity, can be utilized as an independent prognostic factor for PSCC.
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Affiliation(s)
- Qiang-Hua Zhou
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, P. R. China
| | - Hui Han
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Jia-Bin Lu
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Ting-Yu Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Kang-Bo Huang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Chuang-Zhong Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Zai-Shang Li
- Department of Urology, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, 518021, P. R. China
| | - Jie-Ping Chen
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Kai Yao
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Zi-Ke Qin
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Zhuo-Wei Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Yong-Hong Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Sheng-Jie Guo
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Yun-Lin Ye
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Fang-Jian Zhou
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, 510060, P. R. China
| | - Ran-Yi Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
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Ku PC, Liu TY, Lee SH, Kung TA, Wang WH. An environmentally friendly strategy for determining organic ultraviolet filters in seawater using liquid-phase microextraction with liquid chromatography-tandem mass spectrometry. Environ Sci Pollut Res Int 2020; 27:9818-9825. [PMID: 31925700 DOI: 10.1007/s11356-020-07599-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 01/01/2020] [Indexed: 06/10/2023]
Abstract
Benzophenone-3, benzophenone-8, and 4-methylbenzylidene camphor are used in sunscreens because they can protect the skin from UV radiation. The widespread use of organic UV filters may mean that they directly or indirectly enter seawater during recreational activities or through sewage discharge. In this study, a simple and efficient method using 1-octanol:isooctane (2:8, v/v) as an extraction solvent and liquid chromatography-electrospray tandem mass spectrometry was developed to measure trace levels of organic UV filters in seawater samples. This proposed method proved to be a highly sensitive, low-cost, and green analytical tool that requires minimal sample preparation. The method was validated and it exhibited favorable performance as well as acceptable accuracy (67 to 115%), precision (2.1 to 7.3%), coefficients of determination (0.9952 < R2 < 0.9987), sensitivity (limits of quantification [3.3 to 5.7 ng L-1]), and an acceptable matrix effect (87 to 99%). This methodology was successfully applied to analyze seawater taken from Kenting National Park located in the Hengchun Peninsula of southern Taiwan. Benzophenone-3 was detected at all sampling sites and at a higher concentration than the other organic UV filters. The highest concentration of benzophenone-3 was 514.6 ng L-1 in a sample collected from Baisha Beach.
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Affiliation(s)
- Ping-Chang Ku
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-hai Road, Kaohsiung, 80424, Taiwan
| | - Ting-Yu Liu
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-hai Road, Kaohsiung, 80424, Taiwan
| | - Shu Hui Lee
- Center of General Education, National Kaohsiung University of Science and Technology, No. 415, Jiangong Road, Kaohsiung, 80778, Taiwan
| | - Te-An Kung
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Wei-Hsien Wang
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-hai Road, Kaohsiung, 80424, Taiwan.
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Xu ZY, Yu Y, Liu Y, Ou CB, Zhang YH, Liu TY, Wang QX, Ma JY. Differential expression of pro-inflammatory and anti-inflammatory genes of layer chicken bursa after experimental infection with infectious bursal disease virus. Poult Sci 2020; 98:5307-5314. [PMID: 31222288 DOI: 10.3382/ps/pez312] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 05/19/2019] [Indexed: 12/20/2022] Open
Abstract
Infectious bursal disease (IBD) is one of the most prevalent infectious diseases caused by IBD virus (IBDV), which results in bursal necrosis and immunosuppression that cause severe damage to the immune system in chickens. Cytokines are important mediators and regulators of both types of host responses. In the present study, layer chickens were artificially challenged with IBDV, and the differential expression of inflammatory genes was explored by using quantitative real-time PCR, which offered basic data for further study of IBDV pathogenesis. Data showed that after IBDV infection, the virus load in the bursa of Fabricius (BF) peaked at 96 h and then gradually decreased. Compared with those of the negative-infected group, the mRNA expression levels of pro-inflammatory cytokines (interleukin [IL]-1β, IL-6, IL-7, IL-8, tumor necrosis factor [TNF]-α, transforming growth factor [TGF]-β) and anti-inflammatory cytokine IL-10 in the infected group increased to varying degrees at 12 to 192 h, respectively. Furthermore, the IL-1β mRNA expression peaked at 48 h; the mRNA transcript levels of IL-6, IL-8, and IL-10 were the highest at 96 h; TNF-α mRNA expression peaked at 120 h; the IL-7 mRNA expression peaked at 144 h; and the TGF-β mRNA transcript level was the highest at 192 h. Taken together, these observations indicated that along with the change pattern of IBDV proliferation in BF, the mRNA expression of cytokines (IL-1β, IL-6, IL-7, IL-8, IL-10, TNF-α, TGF-β) obviously increased, and the kinetics of each of these cytokines was different. The kinetics of IL-6/IL-10 mRNA expression ratio was significantly positively correlated with that of the virus load. These results suggest that IBDV infection seriously interferes with the natural immune response mediated by inflammatory cytokines in chickens.
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Affiliation(s)
- Zhi-Yong Xu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yan Yu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yan Liu
- Army Eighty-three Group Army Hospital, Xinxiang 453000, China
| | - Chang-Bo Ou
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yan-Hong Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Ting-Yu Liu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Qiu-Xia Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jin-You Ma
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
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Liu TY, Wang SY, Han FT, Wu QP. Rotation control of a variable-capacitance electrostatic motor for space equivalence principle tests with rotating masses. Rev Sci Instrum 2020; 91:015003. [PMID: 32012593 DOI: 10.1063/1.5114679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Variable-capacitance electrostatic motors are ideal for driving the test mass in ultra-low-noise electrostatic accelerometers. Such devices are essential for testing the new equivalence principle (NEP) with rotating extended masses. However, as the air-film damping is greatly reduced by placing the sensor core assembly in a high-vacuum housing, this synchronous motor may easily fall out of step and suffer spin-up failures with traditional open-loop excitation. In this study, a synchronous electronic phase commutation scheme is proposed by sensing the three-phase position change of the rotor poles and activating the stator electrodes in careful correlation with the instantaneous rotor position. Experiments on a ground-test NEP instrument prototype show that the proposed closed-loop excitation scheme can spin-up the rotor synchronously and maintain stable constant-speed operation of this macroscale variable capacitance motor operated in a high-vacuum environment. This rotation control method is also applicable to the synchronous operation of micromachined variable-capacitance electrostatic motors.
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Affiliation(s)
- T Y Liu
- Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - S Y Wang
- Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - F T Han
- Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Q P Wu
- Department of Precision Instrument, Tsinghua University, Beijing 100084, China
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Dang Y, Liu T, Yan J, Reinhardt JD, Yin C, Ye F, Zhang G. Gastric cancer proliferation and invasion is reduced by macrocalyxin C via activation of the miR-212-3p/Sox6 Pathway. Cell Signal 2019; 66:109430. [PMID: 31726103 DOI: 10.1016/j.cellsig.2019.109430] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/03/2019] [Accepted: 09/26/2019] [Indexed: 01/09/2023]
Abstract
Gastric cancer is a malignancy of very poor prognosis and survival rates. Macrocalyxin C is a Chinese herb-derived diterpenoid compound that has been postulated to possess anti-cancer characteristics. Gastic cell viability and stage of cell cycle were assessed using CCK8 assay and flow cytometry, respectively. Cell migration and invation were assessed using the wound healing and Transwell assays. Rate of apoptosis was determined via AV/PI-staining. Athymic nude mice xenograft models were used to evaluate the in vivo efficacy of macrocalyxin C. Western blot, luciferase experiments, cell transfection and real-time PCR allowed further study into the activation of the miR-212-3p/Sox6 pathway during macrocalyxin C treatment. We conclude that macrocalyxin C may halt the proliferation of gastric malignancies through alteration of cell invasion, apoptosis, progression through the cell cycle and cell growth. The macrocalyxin C→miR-212-3p┤Sox6 signal pathway was identified to be involved in Sox6 attenuation through augmentation of miR-212-3p values.
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Affiliation(s)
- Yini Dang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China
| | - TingYu Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China; Department of Gastroenterology, Affiliated Zhongshan Hospital of fudan university, Shanghai, China
| | - Jin Yan
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China
| | - Jan D Reinhardt
- Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, Sichuan Province, China; Epidemiology of Functioning, Swiss Paraplegic Research, Nottwil, Switzerland
| | - Chengqiang Yin
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China; Department of Gastroenterology, Sir Run Run Hospital Affiliated with Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Feng Ye
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China
| | - Guoxin Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China; First Clinical Medical College of Nanjing Medical University, Nanjin, Jiangsu Province, China.
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Juang RS, Wang KS, Cheng YW, Fu CC, Chen WT, Liu CM, Chien CC, Jeng RJ, Chen CC, Liu TY. Floating SERS substrates of silver nanoparticles-graphene based nanosheets for rapid detection of biomolecules and clinical uremic toxins. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Liu TY, Wang CH, Chiang WC, Tang SC, Tsai LK, Lee CW, Jeng JS, Ma MHM, Hsieh MJ, Lee YC. Redistributing medical resources for a bypass strategy for large vessel occlusion: a community-based study. J Neurointerv Surg 2019; 12:98-103. [PMID: 31197027 DOI: 10.1136/neurintsurg-2019-014851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 11/03/2022]
Abstract
BACKGROUND A bypass strategy for large vessel occlusion (LVO) benefits patients receiving endovascular thrombectomy (EVT), but may delay some patients from receiving IV thrombolysis. However, patient centralization has been shown to improve outcomes. OBJECTIVE To understand the current coverage of medical services for patients with stroke, and to identify the best coverage under different medical resource redistribution to help balance medical equality and patient centralization. METHODS This 6-year geographic study of 7679 on-scene patients with suspected stroke with a positive Cincinnati Prehospital Stroke Scale (CPSS) score identified 4037 patients with all three CPSS items who were suspected as having an LVO. Geographic, population, and patient coverage rates for hospitals providing IV thrombolysis and those providing EVT were identified according to hospital service areas, defined as geographic districts with access to a hospital within a ≤15 min off-peak driving time estimated using Google Maps. Moreover, we estimated the effects on resource redistribution when implementing a bypass strategy. RESULTS Geographic coverage rates for hospitals providing IV thrombolysis and those providing EVT were 64.75% and 56.62%, respectively, and population coverage rates were 97.30% and 92.72%, respectively. The service areas of hospitals providing IV thrombolysis covered 93.77% of patients with suspected stroke, and those of hospitals providing EVT covered 87.89% of patients with suspected LVO. The number of hospitals providing IV thrombolysis and those providing EVT could be reduced to six and two hospitals, respectively, without affecting hospital arrival time when implementing a bypass strategy. CONCLUSION Hospitals providing IV thrombolysis and EVT could be reduced without reducing medical equality.
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Affiliation(s)
- Ting-Yu Liu
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
| | - Chun-Han Wang
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
| | - Wen-Chu Chiang
- Departmentof Emergency Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin county, Taiwan
| | - Sung-Chun Tang
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Kai Tsai
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Wei Lee
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Jiann-Shing Jeng
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Matthew Huei-Ming Ma
- Departmentof Emergency Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin county, Taiwan
| | - Ming-Ju Hsieh
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Ching Lee
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
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Wang XC, Yue X, Zhang RX, Liu TY, Pan ZZ, Yang MJ, Lu ZH, Wang ZY, Peng JH, Le LY, Wang GY, Peng QH, Meng Y, Huang W, Liu RY. Genome-wide RNAi Screening Identifies RFC4 as a Factor That Mediates Radioresistance in Colorectal Cancer by Facilitating Nonhomologous End Joining Repair. Clin Cancer Res 2019; 25:4567-4579. [PMID: 30979744 DOI: 10.1158/1078-0432.ccr-18-3735] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/14/2019] [Accepted: 04/09/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE Neoadjuvant chemoradiotherapy (neoCRT) is a standard treatment for locally advanced rectal cancer (LARC); however, resistance to chemoradiotherapy is one of the main obstacles to improving treatment outcomes. The goal of this study was to identify factors involved in the radioresistance of colorectal cancer and to clarify the underlying mechanisms. EXPERIMENTAL DESIGN A genome-wide RNAi screen was used to search for candidate radioresistance genes. After RFC4 knockdown or overexpression, colorectal cancer cells exposed to X-rays both in vitro and in a mouse model were assayed for DNA damage, cytotoxicity, and apoptosis. Moreover, the regulatory effects and mechanisms of RFC4 in DNA repair were investigated in vitro. Finally, the relationships between RFC4 expression and clinical parameters and outcomes were investigated in 145 patients with LARC receiving neoCRT. RESULTS RFC4, NCAPH, SYNE3, LDLRAD2, NHP2, and FICD were identified as potential candidate radioresistance genes. RFC4 protected colorectal cancer cells from X-ray-induced DNA damage and apoptosis in vitro and in vivo. Mechanistically, RFC4 promoted nonhomologous end joining (NHEJ)-mediated DNA repair by interacting with Ku70/Ku80 but did not affect homologous recombination-mediated repair. Higher RFC4 expression in cancer tissue was associated with weaker tumor regression and poorer prognosis in patients with LARC treated with neoCRT, which likely resulted from the effect of RFC4 on radioresistance, not chemoresistance. CONCLUSIONS RFC4 was identified as a radioresistance factor that promotes NHEJ-mediated DNA repair in colorectal cancer cells. In addition, the expression level of RFC4 predicted radiotherapy responsiveness and the outcome of neoadjuvant radiotherapy in patients with LARC.
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Affiliation(s)
- Xue-Cen Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xin Yue
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rong-Xin Zhang
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ting-Yu Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhi-Zhong Pan
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Meng-Jie Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, China
| | - Zhen-Hai Lu
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zi-Yang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jian-Hong Peng
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Li-Yuan Le
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Gao-Yuan Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Qi-Hua Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yuan Meng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wenlin Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Tumor Targeted Drugs and Guangzhou Enterprise Key Laboratory of Gene Medicine, Guangzhou Doublle Bioproducts Co. Ltd., Guangzhou, China
| | - Ran-Yi Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
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49
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He ZX, Liu TY, Yin YY, Song HF, Zhu XJ. Substance P plays a critical role in synaptic transmission in striatal neurons. Biochem Biophys Res Commun 2019; 511:369-373. [PMID: 30803756 DOI: 10.1016/j.bbrc.2019.02.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/10/2019] [Indexed: 01/03/2023]
Abstract
Substance P is one of the major neuropeptides released by striatal neurons; however, its function in the striatum remains unclear. In this study, we found substance P triggers spontaneous neurotransmitter release and rapid synaptic vesicle exocytosis in cultured striatal neurons, as substance P knockdown in these neurons impaired spontaneous neurotransmitter release and calcium-dependent rapid synaptic neurotransmission. Furthermore, treatment with exogenous substance P completely rescued the synaptic dysfunction phenotype in striatal neurons lacking this neuropeptide. On the other hand, substance P knockdown had no effect on the size of the readily releasable pool of synaptic vesicles, but decreased the probability of presynaptic release of synaptic vesicles in cultured striatal neurons. Treatment with CP96345, a NK1 receptor antagonist, also resulted in synaptic defects in cultured striatal neurons. In summary, we propose substance P is critical for synaptic transmission in striatal neurons.
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Affiliation(s)
- Zi-Xuan He
- Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130021, China.
| | - Ting-Yu Liu
- Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130021, China
| | - Yue-Yue Yin
- Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130021, China
| | - Hui-Fang Song
- Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130021, China
| | - Xiao-Juan Zhu
- Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130021, China
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50
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Yu Y, Zhang YH, Xu ZY, Liu TY, Wang QX, Ou CB, Ma JY. Effects of IBDV infection on expression of ghrelin and ghrelin-related genes in chicken. Poult Sci 2019; 98:119-127. [PMID: 30107600 DOI: 10.3382/ps/pey328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 08/06/2018] [Indexed: 02/06/2023] Open
Abstract
Ghrelin is a peptide hormone that plays a modulatory role in the immune system. Studies have demonstrated that mammal ghrelin level is influenced by pathological status. However, it has not been reported whether chicken ghrelin level changes during pathogen infection. This study was designed to investigate changes of ghrelin levels in chickens infected with infectious bursal disease virus (IBDV) and to explore the relationship between ghrelin changes and bursal damage, and inflammatory cells infiltration induced by IBDV. The results showed that (1) plasma ghrelin concentration increased after IBDV infection. It reached a peak at 10443.6 ± 2612.9 pg/mL on 2 dpi, which was about 100-fold as high as that of the control. Then it decreased sharply on 3 dpi, which was only 31.7% as that of 2 dpi, and remained stable until 5 dpi. Meanwhile, ghrelin and ghrelin-related gene, ghrelin-o-acyltransferase (GOAT), and growth hormone secretagogue receptor (GHSR) mRNA expression levels in bursa were also increased after IBDV infection, and reached the peak on 2 dpi at 149, 28.8, and 117.2-fold higher than that of the control, respectively. Then they decreased and remained at a higher status. Correlation analysis showed that plasma ghrelin concentration and ghrelin, GOAT, and GHSR mRNA expressions in bursa were strongly associated with IBDV VP2 mRNA expression in bursa. (2) The damage of bursa was the most severe on 5 dpi with a histopathological score of 12. It had no direct correlation with plasma ghrelin level and ghrelin, GOAT, and GHSR mRNA expressions in bursa. However, the number of inflammatory cells infiltrating into bursa, which was the highest on 2 and 3 dpi, showed significant a positive correlation with the ghrelin and GHSR mRNA expression. Presumably chicken ghrelin may function as an anti-inflammatory factor. In conclusion, IBDV infection upregulates the expression of ghrelin and ghrelin-related gene in chickens, and chicken ghrelin may play an important regulatory role during pathogen infection.
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Affiliation(s)
- Y Yu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Y H Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Z Y Xu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - T Y Liu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Q X Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - C B Ou
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - J Y Ma
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
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