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Lin ZH, Hoe ZY. Guillain-Barré Syndrome as a paraneoplastic neurological disease of pulmonary adenocarcinoma and squamous cell carcinoma: A case report. Acta Neurol Taiwan 2024; 33(4):201-205. [PMID: 38073172] [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: 12/18/2023]
Abstract
We present the case of a 69-year-old male who presented with profound weakness in the extremities. Remarkably, he lacked any identifiable precipitating factors preceding the onset of his illness. However, a diagnosis of Guillain-Barré syndrome (GBS) was established based on typical clinical symptoms, cerebrospinal fluid analysis, and neurological examination. During his hospitalization, an incidental discovery of lung cancer was made. Subsequent pathology confirmed adenocarcinoma and squamous cell carcinoma in the lungs. This case report serves to underscore the exceptional rarity of the simultaneous occurrence of lung cancer and GBS, renewing interest in investigating GBS as a potential paraneoplastic neurological syndrome. Keywords: Guillain-Barré syndrome, paraneoplastic neurological disease, pulmonary adenocarcinoma, squamous cell carcinoma.
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Affiliation(s)
- Zong-Han Lin
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Zheng-Yu Hoe
- Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung; Department of Pharmacy and Master Program, Tajen University, Pingtung
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Lee MC, Lin GY, Hoe ZY, Pan CT. Development of Piezoelectric Silk Sensors Doped with Graphene for Biosensing by Near-Field Electrospinning. Sensors (Basel) 2022; 22:9131. [PMID: 36501833 PMCID: PMC9735763 DOI: 10.3390/s22239131] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
A novel piezoelectric fiber sensor based on polyvinylidene fluoride piezoelectric (PVDF) doped with graphene is presented. The near-field electrospinning technology was used for developing the sensor. The uniform experimental design method was introduced to determine the ranges of experimental parameters, including the applied voltage, the drum speed range, the graphene doping ratios from 0% to 11 wt% in PVDF solution, and the electrode gap. By experimental results, the conductivities of PVDF solutions with different doping ratios of graphene increased from 19.6 μS/cm to 115.8 μS/cm. Tapping tests were performed to measure the voltages and currents produced by the piezoelectric fibers. The maximum output voltage was 4.56 V at 5 wt% graphene doping ratio in PVDF fibers, which was 11.54 times that of the pure PVDF sensors. Moreover, mechanical properties of the proposed sensor were measured. Motion intention and swallowing test, such as saliva-swallowing and eating, were carried out. When the subject spoke normally, the output voltage of the sensor was between 0.2 and 0.4 V, approximately. Furthermore, when the subject drank water and ate food, the output voltage of the sensor was between 0.5 and 1 V, approximately. The proposed sensor could be used to detect signals of the human body and serve as a wearable device, allowing for more diagnosis and medical treatment.
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Affiliation(s)
- Ming-Chan Lee
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Guan-Ying Lin
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Zheng-Yu Hoe
- Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
| | - Cheng-Tang Pan
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Institute of Advanced Semiconductor Packaging and Testing, College of Semiconductor and Advanced Technology Research, National Sun Yat-sen University, Kaohsiung 804, Taiwan
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Hoe ZY, Chang CC, Chen JJJ, Yen CK, Wang SY, Kao YH, Li WM, Chen WF, Pan CT. Enhancement of PVDF Sensing Characteristics by Retooling the Near-Field Direct-Write Electrospinning System. Sensors (Basel) 2020; 20:s20174873. [PMID: 32872202 PMCID: PMC7506575 DOI: 10.3390/s20174873] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 11/16/2022]
Abstract
This research aimed to develop a direct-write near-field electrospinning system (DW-NFES) with three-axis positioning of controllable speed, torque and position to produce sizable and high-quality piezoelectric fibers for sensing purposes. Sensor devices with high electrical response signals were developed and tested. To achieve DW-NFES purpose, a servo motor controller was designed to develop a high response rate, accurate positioning, and stable mobile device through the calculation of bandwidth and system time delay. With this retooled system of DW-NFES, controllable and uniform size fibers in terms of diameters, stretching force, and interspaces can be obtained. Sensor devices can be made selectively without a complicated lithography process. The characteristics of this DW-NFES platform were featured by high response rate, accurate positioning, and stable movement to make fibers with high piezoelectric property. In this study, polyvinylidene fluoride (PVDF) was used to explore and enhance their sensing quality through the platform. The parametric study of the process factors on piezoelectric sensing signals mainly included the concentration of electrospinning PVDF solution, high voltage electric field, and collection speed. Finally, the surface morphology and piezoelectric properties of the as-electrospun PVDF fibers were examined by scanning electron microscopy (SEM) and characterized by electrical response measurement techniques. The results showed that the fiber spinning speed of the DW-NFES system could be increased to ~125 from ~20 mm/s and the accuracy precision was improved to ~1 from ~50 μm, compared to conventional step motor system. The fiber diameter reached ~10 μm, and the electrospinning pitch reached to as small as ~10 μm. The piezoelectric output voltage of the electrospun fibers was increased ~28.6% from ~97.2 to ~125 mV; the current was increased ~27.6% from ~163 to ~208 nA, suggesting that the piezoelectric signals can be enhanced significantly by using this retooled system. Finally, an external control module (Arduino-MAGE) was introduced to control the PVDF piezoelectric fiber sensors integrated as a sensing array. The behavior of long-term sedentary patients can be successfully detected by this module system to prevent the patients from the bedsores.
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Affiliation(s)
- Zheng-Yu Hoe
- Department of Biomedical Engineering, National Cheng Kung University, Tainan City 70101, Taiwan; (Z.-Y.H.); (J.-J.J.C.)
- Physical Medicine and Rehabilitation Department, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
| | - Chun-Chieh Chang
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (C.-C.C.); (C.-K.Y.); (S.-Y.W.); (Y.-H.K.)
| | - Jia-Jin Jason Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan City 70101, Taiwan; (Z.-Y.H.); (J.-J.J.C.)
| | - Chung-Kun Yen
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (C.-C.C.); (C.-K.Y.); (S.-Y.W.); (Y.-H.K.)
| | - Shao-Yu Wang
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (C.-C.C.); (C.-K.Y.); (S.-Y.W.); (Y.-H.K.)
| | - Yu-Hsuan Kao
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (C.-C.C.); (C.-K.Y.); (S.-Y.W.); (Y.-H.K.)
| | - Wei-Ming Li
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Cohort Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, Ministry of Health and Welfare Pingtung Hospital, Pingtung 90054, Taiwan
| | - Wen-Fan Chen
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence: (W.-F.C.); (C.-T.P.)
| | - Cheng-Tang Pan
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (C.-C.C.); (C.-K.Y.); (S.-Y.W.); (Y.-H.K.)
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence: (W.-F.C.); (C.-T.P.)
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Kumar A, Chaudhary RK, Singh R, Singh SP, Wang SY, Hoe ZY, Pan CT, Shiue YL, Wei DQ, Kaushik AC, Dai X. Nanotheranostic Applications for Detection and Targeting Neurodegenerative Diseases. Front Neurosci 2020; 14:305. [PMID: 32425743 PMCID: PMC7203731 DOI: 10.3389/fnins.2020.00305] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 09/22/2019] [Accepted: 03/16/2020] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology utilizes engineered materials and devices which function with biological systems at the molecular level and could transform the management of neurodegenerative diseases (NDs) by provoking, reacting to, and intermingling with target sites to stimulate physiological responses while minimizing side effects. Blood-brain barrier (BBB) protects the brain from harmful agents, and transporting drugs across the BBB is a major challenge for diagnosis, targeting, and treatment of NDs. The BBB provides severe limitations for diagnosis and treatment of Alzheimer's disease (AD), Parkinson's disease (PD), and various other neurological diseases. Conventional drug delivery systems generally fail to cross the BBB, thus are inefficient in treatment. Although gradual development through research is ensuring the progress of nanotheranostic approaches from animal to human modeling, aspects of translational applicability and safety are a key concern. This demands a deep understanding of the interaction of body systems with nanomaterials. There are various plant-based nanobioactive compounds which are reported to have applicability in the diagnosis and treatment of these NDs. This review article provides an overview of applications of nanotheranostics in AD and PD. The review also discusses nano-enabled drug delivery systems and their current and potential applications for the treatment of various NDs.
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Affiliation(s)
- Ajay Kumar
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Ravi Kumar Chaudhary
- Department of Biotechnology, Institute of Applied Medicines & Research, Ghaziabad, India
| | - Rachita Singh
- Department of Electrical and Electronics Engineering, IIMT Engineering College, Uttar Pradesh Technical University, Meerut, India
| | - Satya P. Singh
- School of Computer Science & Engineering, Nanyang Technological University, Singapore, Singapore
| | - Shao-Yu Wang
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Zheng-Yu Hoe
- Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Cheng-Tang Pan
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Dong-Qing Wei
- Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Aman Chandra Kaushik
- Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
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Lo CC, Lin PY, Hoe ZY, Chen JJJ. Near Infrared Spectroscopy Study of Cortical Excitability During Electrical Stimulation-Assisted Cycling for Neurorehabilitation of Stroke Patients. IEEE Trans Neural Syst Rehabil Eng 2018; 26:1292-1300. [PMID: 29877854 DOI: 10.1109/tnsre.2018.2829804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In addition to generating functional limb movement via electrical stimulation, other research proposed lower intensity stimulation for stroke patients from proprioceptive and neuro-biofeedback aspects. This paper investigates the effects of different intensity levels of electrical stimulation during passive cycling on cortical activation using multichannel near infrared spectroscopy (NIRS) covering premotor cortex, supplementary motor area, sensorimotor cortex (SMC), and secondary sensory cortex (S2) regions. Sixteen subjects, including nine stroke patients and seven normal subjects, were instructed to perform passive cycling driven by an ergometer at a pace of 50 rpm under conditions without electrical stimulation (NES) and with low-intensity electrical stimulation (LES) at 10 mA and high-intensity electrical stimulation (HES) at 30 mA. Changes in oxyhemoglobin in different brain regions and the derived interhemispheric correlation coefficient (IHCC) representing the symmetry in response of two hemispheres were evaluated to observe cortical activation and cerebral autoregulation. Our results showed that cortical activation of normal subjects exhibited overall deactivations in HES compared with that under LES and NES. In stroke patients, bilateral S2 activated significantly greater under LES compared with those under NES and HES. The IHCC of the normal group displayed a significant higher value in SMC compared with that of the stroke group. This paper utilized noninvasive NIRS to observe hemodynamic changes and bilateral autoregulation symmetry from IHCC suggesting that passive cycling with LES could better facilitate cortical activation compared with that obtained with NES or HES. The results of this paper could provide general guidelines to simplify the settings of electrical stimulation-assisted-passive cycling in clinical use.
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