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Synthesis of Gadolinium-Doped Molybdenum Diselenide Nanospheres for Ultrasensitive Electrochemical Determination of Essential Amino Acid in Human Serum and Milk Samples

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Journal of the Electrochemical Society 2023年第5期170卷 057501-057501页

作者： Jeromiyas, Nithiya Govindasamy, Mani Alothman, Asma A. Ouladsmane, Mohamed Huang, Chi-Hsien National Kaohsiung University of science and Technology Kaohsiung City81157 Taiwan Department of Chemistry Korea University Seongbuk-gu Seoul Korea Republic of Faculty International PhD Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Department of Research and Innovation Saveetha School of Engineering SIMATS Thandalam Chennai602105 India Chemistry Department College of Science King Saud University Riyadh11451 Saudi Arabia Department of Materials Engineering Ming Chi University of Technology New Taipei City243303 Taiwan Biochemical Technology R&D Center Ming Chi University of Technology New Taipei City243303 Taiwan

The electrocatalytic activity and electronic conductivity of 2D transition metal chalcogenides are usually enhanced by as follows the ideal strategy such as doping or substitution heterogeneous atoms. Here, a rare Earth metal ion of gadolinium (Gd3+) was doped with MoSe2 and synthesized through the hydrothermal method. The morphology and nanostructure of Gd3+ with MoSe2 spheres were analyzed under X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron, High-resolution transmission electron microscopy analysis, Field emission scanning electron microscopy, and energy-dispersive spectroscopy. Furthermore, the Gd3+ doped MoSe2 sphere modified glassy carbon electrode (Gd@MoSe2/GCE) was used for the sensing of tryptophan. The Gd@MoSe2 modified GCE shows remarkable sensing performance of tryptophan resulting in a linear range (20 nM-220 μM) with a low detection limit (6.7 nM). Under the optimal condition, the developed electrochemical sensor was successfully used to determine tryptophan (TRP) in blood serum and milk samples. The electrochemical biosensing results suggest that the doping of the Gd3+ doped MoSe2 sensor is a promising electrocatalyst in biological and food samples. © 2023 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.

关键词： Amino acids

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Application of artificial intelligence in endoscopic image analysis for the diagnosis of a gastric cancer pathogen-Helicobacter pylori infection

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Scientific Reports 2023年第1期13卷 1-12页

作者： Lin, Chih-Hsueh Hsu, Ping-I Tseng, Chin-Dar Chao, Pei-Ju Wu, I-Ting Ghose, Supratip Shih, Chih-An Lee, Shen-Hao Ren, Jia-Hong Shie, Chang-Bih Lee, Tsair-Fwu Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan Medical Physics and Informatics Laboratory of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan Division of Gastroenterology Department of Medicine An Nan Hospital China Medical University Tainan Taiwan Department of Education and Research An Nan Hospital China Medical University Tainan Taiwan Division of Gastroenterology and Hepatology Department of Internal Medicine Antai Medical Care Corporation Antai Tian-Sheng Memorial Hospital Pingtung County Donggan Taiwan Department of Nursing Meiho University Pingtung County Neipu Taiwan Department of Radiation Oncology Linkou Chang Gung Memorial Hospital and Chang Gung University College of Medicine Linkou Taiwan Department of Medical Imaging and Radiological Sciences Kaohsiung Medical University Kaohsiung 80708 Taiwan PhD Program in Biomedical Engineering Kaohsiung Medical University Kaohsiung 80708 Taiwan School of Dentistry College of Dental Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan

Helicobacter pylori (H. pylori) infection is the principal cause of chronic gastritis, gastric ulcers, duodenal ulcers, and gastric cancer. In clinical practice, diagnosis of H. pylori infection by a gastroenterologists’ impression of endoscopic images is inaccurate and cannot be used for the management of gastrointestinal diseases. The aim of this study was to develop an artificial intelligence classification system for the diagnosis of H. pylori infection by pre-processing endoscopic images and machine learning methods. Endoscopic images of the gastric body and antrum from 302 patients receiving endoscopy with confirmation of H. pylori status by a rapid urease test at An Nan Hospital were obtained for the derivation and validation of an artificial intelligence classification system. The H. pylori status was interpreted as positive or negative by Convolutional Neural Network (CNN) and Concurrent Spatial and Channel Squeeze and Excitation (scSE) network, combined with different classification models for deep learning of gastric images. The comprehensive assessment for H. pylori status by scSE-CatBoost classification models for both body and antrum images from same patients achieved an accuracy of 0.90, sensitivity of 1.00, specificity of 0.81, positive predictive value of 0.82, negative predicted value of 1.00, and area under the curve of 0.88. The data suggest that an artificial intelligence classification model using scSE-CatBoost deep learning for gastric endoscopic images can distinguish H. pylori status with good performance and is useful for the survey or diagnosis of H. pylori infection in clinical practice. © 2023, Springer Nature Limited.

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Assessment of circulating extracellular vesicles from calorie-restricted mice and humans in ischaemic injury models

Journal of Extracellular Biology

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Journal of Extracellular Biology 2023年第5期2卷 e86页

作者： Jaimes, Manuel S. V. Liao, Chia-Te Chen, Max M. Czosseck, Andreas Lee, Tsung-Lin Chou, Yu-Hsiang Chen, Yung-Ming Lin, Shuei-Liong Lai, James J. Lundy, David J. Graduate Institute of Biomedical Materials & Tissue Engineering Taipei Medical University Taipei Taiwan Division of Nephrology Department of Internal Medicine Shuang Ho Hospital Taipei Medical University New Taipei Taiwan Division of Nephrology Department of Internal Medicine School of Medicine College of Medicine Taipei Medical University Taipei Taiwan TMU Research Center of Urology and Kidney (TMU-RCUK) Taipei Medical University Taipei Taiwan Division of Nephrology Department of Internal Medicine National Taiwan University Hospital College of Medicine National Taiwan University Taipei Taiwan Graduate Institute of Physiology College of Medicine National Taiwan University Taipei Taiwan Department of Bioengineering University of Washington Seattle WA United States Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei Taiwan International PhD Program in Biomedical Engineering Taipei Medical University Taipei Taiwan Center for Cell Therapy Taipei Medical University Hospital Taipei Taiwan

Calorie restriction (CR) and fasting affect lifespan, disease susceptibility and response to acute injury across multiple animal models, including ischaemic injuries such as myocardial infarction or kidney hypoxia. The cargo and function of circulating extracellular vesicles (EV) respond to changes in host physiology, including exercise, injury, and other interventions. Thus, we hypothesised that EVs induced following CR may reflect some of the beneficial properties of CR itself. In a pilot study, EVs were isolated from mice following 21 days of 30 % CR, and from eight human donors after 72 h water-only fasting. EV size, concentration and morphology were profiled by NTA, western blot and cryoEM, and their function was assessed using multiple assays related to ischaemic diseases. We found that EVs from post-fasting samples better protected cardiac cells from hypoxia/reperfusion (H/R) injury compared to pre-fasting EVs. However, there was no difference when used to treat H/R-injured kidney epithelial cells. Post-fasting derived EVs slowed the rate of fibroblast migration and slightly reduced macrophage inflammatory gene expression compared to pre-fasting derived EVs. Lastly, we compared miRNA cargos of pre- and post-fasting human serum EVs and found significant changes in a small number of miRNAs. We conclude that fasting appears to influence EV cargo and function, with varied effects worthy of further exploration. © 2023 The Authors. Journal of Extracellular Biology published by Wiley Periodicals, LLC on behalf of the International Society for Extracellular Vesicles.

关键词： calorie restriction cardiomyocyte diet extracellular vesicle fasting hypoxia ketone macrophage microRNA serum

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Metal ratio and bimetal nanoarchitectonics of ammonia-based fluoride complex induced nickel hydroxide and manganese oxide composites as active materials of an energy storage device

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Journal of Energy Storage 2024年 80卷

作者： Hsu, Chuan-Chih Yu, You Zher Wu, Chung-Hsien Lee, Pin-Yan Chen, Hung-Ming Husain, Sadang Kongvarhodom, Chutima Hsiao, Yu-Cheng Lin, Lu-Yin Division of Cardiovascular Surgery Department of Surgery School of Medicine College of Medicine Taipei Medical University Taiwan Division of Cardiovascular Surgery Department of Surgery Taipei Medical University Hospital Taiwan Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei Taiwan Gingen Technology Co. LTD. Rm. 7 10F. No.189 Sec. 2 Keelung Rd. Xinyi Dist. Taipei11054 Taiwan Department of Physics Faculty of Mathematics and Natural Science Lambung Mangkurat University Banjarmasin70124 Indonesia Department of Chemical Engineering King Mongkut's University of Technology Thonburi 126 Pracha-u-thit Toong-kru Bangkok10140 Thailand Department of Chemical Engineering Ming Chi University of Technology New Taipei City24301 Taiwan Cell Physiology and Molecular Image Research Center Wan Fang Hospital Taipei Medical University Taipei11696 Taiwan International PhD Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan Stanford Byers Center for Biodesign Stanford University CA94305-5428 United States Graduate Institute of Biomedical Optomechatronics College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan

Nickel and manganese compounds are widely applied as efficient battery-type active materials for energy storage devices, due to high theoretical capacities and abundant redox states for generating redox reactions to store charges. Morphology plays significant roles on energy storage ability. Structure directing agent (SDA) is widely reported to have ability for modulating configurations of active materials and to achieve excellent surface properties. In this work, it is the first time to use NH4BF4 and NH4HF2 as structure directing agents for synthesizing nickel manganese compounds derived from ZIF67 as active materials of energy storage devices. Bimetallic compounds are composed of nickel hydroxide and manganese oxide, which presents the favorable two-dimensional flower-like structure with high surface area and abundant redox states. The largest specific capacitance (CF) of 1358.2 F/g corresponding to the capacity of 226.4 mAh/g are achieved for the bimetallic compound synthesized using the Ni to Mn precursor ratio of 1 to 1 (NiMn11). The energy storage device assembled using NiMn11 and reduced graphene oxide on Ni foams presents a maximum energy density of 11.45 Wh/kg at the power density of 0.35 kW/kg, and excellent long-term stability with the CF retention of 85.6% and Coulombic efficiency of 87.5% after 10,000 cycles. © 2023

关键词： Fluorine compounds

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Hydrogen sulfide coordinates glucose metabolism switch through destabilizing tetrameric pyruvate kinase M2

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Nature Communications 2024年第1期15卷 7463页

作者： Wang, Rong-Hsuan Chen, Pin-Ru Chen, Yue-Ting Chen, Yi-Chang Chu, Yu-Hsin Chien, Chia-Chen Chien, Po-Chen Lo, Shao-Yun Wang, Zhong-Liang Tsou, Min-Chen Chen, Ssu-Yu Chiu, Guang-Shen Chen, Wen-Ling Wu, Yi-Hsuan Wang, Lily Hui-Ching Wang, Wen-Ching Lin, Shu-Yi Kung, Hsing-Jien Wang, Lu-Hai Cheng, Hui-Chun Lin, Kai-Ti Institute of Biotechnology National Tsing Hua University Hsinchu Taiwan Institute of Bioinformatics and Structural Biology National Tsing Hua University Hsinchu Taiwan Institute of Molecular and Genomic Medicine National Health Research Institutes Zhunan Taiwan Institute of Molecular and Cellular Biology National Tsing Hua University Hsinchu Taiwan Department of Medical Science National Tsing Hua University Hsinchu Taiwan School of Medicine National Tsing Hua University Hsinchu Taiwan Department of Life Science National Tsing Hua University Hsinchu Taiwan Institute of Biomedical Engineering and Nanomedicine National Health Research Institutes Zhunan Taiwan College of Medical Science and Technology PhD Program for Cancer Biology and Drug Discovery Taipei Medical University Taipei Taiwan Chiese Medicine Research Center and Institute of Integrated Medicine China Medical University Taichung City Taiwan

Most cancer cells reprogram their glucose metabolic pathway from oxidative phosphorylation to aerobic glycolysis for energy production. By reducing enzyme activity of pyruvate kinase M2 (PKM2), cancer cells attain a greater fraction of glycolytic metabolites for macromolecule synthesis needed for rapid proliferation. Here we demonstrate that hydrogen sulfide (H₂S) destabilizes the PKM2 tetramer into monomer/dimer through sulfhydration at cysteines, notably at C326, leading to reduced PKM2 enzyme activity and increased PKM2-mediated transcriptional activation. Blocking PKM2 sulfhydration at C326 through amino acid mutation stabilizes the PKM2 tetramer and crystal structure further revealing the tetramer organization of PKM2-C326S. The PKM2-C326S mutant in cancer cells rewires glucose metabolism to mitochondrial respiration, significantly inhibiting tumor growth. In this work, we demonstrate that PKM2 sulfhydration by H₂S inactivates PKM2 activity to promote tumorigenesis and inhibiting this process could be a potential therapeutic approach for targeting cancer metabolism. © The Author(s) 2024.

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REVIEW ARTICLE: Melatonin plus exercise-based neurorehabilitative therapy for spinal cord injury

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Journal of Pineal Research 2010年第3期49卷

作者： Yonggeun Hong K. J. Palaksha Kanghui Park Sookyoung Park Hyun-Dong Kim Russel J. Reiter Kyu-Tae Chang Cardiovascular & Metabolic Disease Center Department of Rehabilitation Science in Interdisciplinary PhD Program College of Biomedical Science & Engineering Inje University Gimhae National Primate Research Center (NPRC) Korea Research Institute of Bioscience and Biotechnology (KRIBB) Ochang Department of PM & R. (Physical Medicine and Rehabilitation) College of Medicine Inje University Busan Korea Department of Cellular & Structural Biology The UT Health Science Center San Antonio TX USA

Abstract: Spinal cord injury (SCI) is damage to the spinal cord caused by the trauma or disease that results in compromised or loss of body function. Subsequent to SCI in humans, many individuals have residual motor and sensory deficits that impair functional performance and quality of life. The available treatments for SCI are rehabilitation therapy, activity-based therapies, and pharmacological treatment using antioxidants and their agonists. Among pharmacological treatments, the most efficient and commonly used antioxidant for experimental SCI treatment is melatonin, an indolamine secreted by pineal gland at night. Melatonin’s receptor-independent free radical scavenging action and its broad-spectrum antioxidant activity makes it an ideal antioxidant to protect tissue from oxidative stress-induced secondary damage after SCI. Owing to the limitations of an activity-based therapy and antioxidant treatment singly on the functional recovery and oxidative stress-induced secondary damages after SCI, a melatonin plus exercise treatment may be a more effective therapy for SCI. As suggested herein, supplementation with melatonin in conjunction with exercise not only would improve the functional recovery by enhancing the beneficial effects of exercise but would reduce the secondary tissue damage simultaneously. Finally, melatonin may protect against exercise-induced fatigue and impairments. In this review, based on the documented evidence regarding the beneficial effects of melatonin, activity-based therapy and the combination of both on functional recovery, as well as reduction of secondary damage caused by oxidative stress after SCI, we suggest the melatonin combined with exercise would be a novel neurorehabilitative strategy for the faster recovery after SCI.

关键词： animal model exercise melatonin rehabilitation secondary/oxidative damage spinal cord injury

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Author Correction: SCON-a Short Conditional intrON for conditional knockout with one-step zygote injection

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Experimental & molecular medicine 2023年第6期55卷 1278-1280页

作者： Szu-Hsien Sam Wu Heetak Lee Réka Szép-Bakonyi Gabriele Colozza Ayse Boese Krista R Gert Natalia Hallay Ji-Hyun Lee Jihoon Kim Yi Zhu Margot M Linssen Sandra Pilat-Carotta Peter Hohenstein Hans-Christian Theussl Andrea Pauli Bon-Kyoung Koo Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA) Vienna BioCenter (VBC) Dr. Bohr-Gasse 3 1030 Vienna Austria. samwu202@***. Vienna BioCenter PhD Program Doctoral School of the University at University of Vienna and Medical University of Vienna 1030 Vienna Austria. samwu202@***. Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA) Vienna BioCenter (VBC) Dr. Bohr-Gasse 3 1030 Vienna Austria. Center for Genome Engineering Institute for Basic Science Expo-ro 55 Yuseong-gu Daejeon 34126 Republic of Korea. Vienna BioCenter PhD Program Doctoral School of the University at University of Vienna and Medical University of Vienna 1030 Vienna Austria. Research Institute of Molecular Pathology (IMP) Vienna BioCenter (VBC) Campus-Vienna-BioCenter 1 1030 Vienna Austria. Department of Medical and Biological Sciences Catholic University of Korea Bucheon 14662 South Korea. Transgenic Facility Leiden Central Animal Facility Leiden University Medical Center Postbus 9600 2300 RC Leiden The Netherlands. IMP/IMBA Transgenic Service Institute of Molecular Pathology (IMP) Vienna Austria. Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA) Vienna BioCenter (VBC) Dr. Bohr-Gasse 3 1030 Vienna Austria. koobk@ibs.re.kr. Center for Genome Engineering Institute for Basic Science Expo-ro 55 Yuseong-gu Daejeon 34126 Republic of Korea. koobk@ibs.re.kr.

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Machine learning for early prediction of circulatory failure in the intensive care unit

arXiv

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arXiv 2019年

作者： Hyland, Stephanie L. Faltys, Martin Hüser, Matthias Lyu, Xinrui Gumbsch, Thomas Esteban, Cristóbal Bock, Christian Horn, Max Moor, Michael Rieck, Bastian Zimmermann, Marc Bodenham, Dean Borgwardt, Karsten Rätsch, Gunnar Merz, Tobias M. Department of Computer Science ETH Zürich Zürich Switzerland Computational Biology Program Memorial Sloan Kettering Cancer Center New York United States Tri-Institutional PhD Program in Computational Biology and Medicine Weill Cornell Medicine New York United States Medical Informatics Group Zürich University Hospital Zürich Switzerland Department of Intensive Care Medicine University Hospital University of Bern Bern Switzerland Department of Biosystems and Engineering ETH Zürich Basel Switzerland Department of Biology ETH Zürich Zürich Switzerland Swiss Institute for Bioinformatics Lausanne Switzerland Cardiovascular Intensive Care Unit Auckland City Hospital Auckland New Zealand

Intensive care clinicians are presented with large quantities of patient information and measurements from a multitude of monitoring systems. The limited ability of humans to process such complex information hinders physicians to readily recognize and act on early signs of patient deterioration. We used machine learning to develop an early warning system for circulatory failure based on a high-resolution ICU database with 240 patient-years of data. This automatic system predicts 90.0% of circulatory failure events (prevalence 3.1%), with 81.8% identified more than two hours in advance, resulting in an area under the receiver operating characteristic curve of 94.0% and area under the precision recall curve of 63.0%. The model was externally validated in a large independent patient cohort. Copyright © 2019, The Authors. All rights reserved.

关键词： Intensive care units

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Author response

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Physical therapy 2013年第10期93卷 1427-8页

作者： Kathleen A Sluka Jan M Bjordal Serge Marchand Barbara A Rakel K.A. Sluka PT PhD FAPTA Department of Physical Therapy and Rehabilitation Science College of Medicine College of Nursing Pain Research Program University of Iowa 100 Medical Education Bldg #1-252 Iowa City IA 52242 (USA). J.M. Bjordal PT PhD Physical Therapy Research Group Department of Global Public Health and Primary Care University of Bergen Bergen Norway and Centre for Evidence-Based Practice Bergen University College Bergen Norway. S. Marchand PhD Departement de Chirurgie Centre de Rechercheclinique Etienne-Le Bel du CHUS Universite de Sherbrooke Quebec Canada. B.A. Rakel RN PhD Department of Physical Therapy and Rehabilitation Science College of Medicine College of Nursing Pain Research Program University of Iowa.

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A new sterol from the Formosan soft coral Lobophytum durum

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Journal of Molecular Structure 2024年第Part2期1296卷

作者： Hung, Chia-Ling Huang, Li-Chieh Shih, Kun-Yauh Lai, Kuei-Hung Peng, Bo-Rong Hwang, Tsong-Long Chien, Su-Ying Li, Chia-Ying Chung, Hsu-Ming Department of Applied Chemistry National Pingtung University Pingtung900391 Taiwan Graduate Institute of Pharmacognosy College of Pharmacy Taipei Medical University Taipei11031 Taiwan PhD Program in Clinical Drug Development of Herbal Medicine College of Pharmacy Taipei Medical University Taipei11031 Taiwan Traditional Herbal Medicine Research Center Taipei Medical University Hospital Taipei11031 Taiwan Graduate Institute of Natural Products College of Medicine Chang Gung University Taoyuan333323 Taiwan Research Center for Chinese Herbal Medicine Graduate Institute of Healthy Industry Technology College of Human Ecology Chang Gung University of Science and Technology Taoyuan333324 Taiwan Department of Chemical Engineering Ming Chi University of Technology New Taipei City243303 Taiwan Department of Anesthesiology Chang Gung Memorial Hospital Taoyuan333423 Taiwan Instrumentation Center National Taiwan University Taipei106319 Taiwan

Chromatographic investigation on the ethyl acetate extract of the soft coral Lobophytum durum collected from the waters of Guishan Island in northeast Taiwan resulted in the isolation of three sterols 1–3, including one new sterol, 3β-hydroxy-25-methylene-5-cholesten-7-one (1), and two previously reported sterols, 7-oxogorgosterol (2), and (24R)-ergostane-3β,5α,6β,25-tetraol 25-monoacetate (3). The structures of sterols 1–3 were determined by extensive spectroscopic data analysis and by comparison with literatures. Additionally, the 24R-configuration of sterol 3 was identified by a single-crystal X-ray diffraction analysis and 13C chemical shifts for first time. The anti-inflammatory activities of sterols 1–3 were evaluated by examining their inhibitory effects on the generation of superoxide anions and the release of elastase against activated human neutrophils. © 2023

关键词： Spectroscopic analysis

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