Chih-Hung Chen

Dr. Chih-Hung Chen


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 January 2022 in Biomedicines
Verified
Journal Article
Open access
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PSPei-Hsun Sung
Pei-Hsun Sung
TYTsung-Cheng Yin
Tsung-Cheng Yin
HCHan-Tan Chai
Han-Tan Chai
JCJohn Y. Chiang
John Y. Chiang
Chih-Hung ChenChih-Hung Chen
Chih-Hung Chen
HYHon-Kan Yip
Hon-Kan Yip
(1) This study tests hypothesis whether extracorporeal shock wave (ECSW) therapy effectively salvages mouse critical limb ischemia (CLI). In vitro result demonstrated that the angiogenesis parameters (i.e., tubular length/cluster/network formation) and protein expressions of EGFR/VEGFR2/RAS/c-Raf/MEK/ERK/VEGF/p-PI3K/p-Akt/p-m-TOR were significantly and progressively increased with stepwise augmentation of ECSW energy (0.1/0.14/0.20 mJ/mm2/140 impulses). On the other hand, they were suppressed by administration of Avastin (20 μM). Adult male B6 mice (n = 24) were equally categorized into group 1 (sham-operated control), group 2 (CLI), group 3 [CLI + ECSW (0.12 mJ/mm2/120 impulses/at days 1/3/7 after CLI induction)] and group 4 [CLI + ECSW (0.12 mJ/mm2/120 impulses) + Avastin (1 mg/intramuscular-injection)] at days 1/3/7 after CLI induction] and quadriceps were harvested by day 14. The laser Doppler result showed that the ratio of left (ischemia) to right (normal) limb blood flow was highest in group 1, lowest in group 2, and significantly higher in group 3 than in group 4 by days 7/14 after the CLI procedure (p < 0.0001). The protein expressions of cell proliferation/migration/angiogenesis receptors (EGFR/VEGFR2), angiogenesis biomarkers (VEGF/CXCR4/SDF-1) and cell proliferation/growth/survival (Ras/c-Raf/MEK/ERK)/(PI3K/Akt/m-TOR) and cell motility/proliferation (p-FAK/p-Scr) signaling biomarkers were significantly higher in group 3 than in groups 1/2/4, and significantly lower in group 1 than in groups 2/4, but they did not show a difference between groups 2 and 4 (all p < 0.001). The small vessel density and cellular levels of endothelial cell surface marker (CD31+) exhibited an identical pattern of blood flow, whereas the angiogenesis (CXCR4+/VEGF+) displayed an identical pattern of VEGFR2 among the groups (all p < 0.0001). The in vitro and in vivo studies found ECSW salvaged the CLI mainly through upregulating Ras-Raf-MEK/ERK/cell motility, cell proliferation/growth pathways and angiogenesis.

30 December 2024 in Pathogens
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Journal Article
Open access
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WCWei-Chuan Chen
Wei-Chuan Chen
MHMei-Hsiu Ho
Mei-Hsiu Ho
SYShin-Huan Yuan
Shin-Huan Yuan
HCHui Wen Chou
Hui Wen Chou
CCChi-chuan Chang
Chi-chuan Chang
Yusen Eason LinYusen Eason Lin
Yusen Eason Lin
Microorganisms, including pathogens that cause skin, respiratory, and urinary tract infections, are widespread in our environment. Despite routine cleaning with bleach and disinfectants, the transmission of pathogens still occurs, leading to potential infectious diseases. This study aimed to determine the antibacterial effect of two coating formulas against common environmental pathogens like Escherichia coli, Staphylococcus aureus, Acinetobacter baumannii, Pseudomonas aeruginosa, Salmonella sp., vancomycin-resistant Enterococcus faecium, and Klebsiella pneumoniae. The antibacterial coatings exhibited efficacy against these pathogens, with a bacterial reduction rate (R) greater than two, even after prolonged bleach cleaning. However, UV exposure may affect the efficacy of such coatings. The antibacterial coatings can eliminate the need for repetitive consumption of toxic detergents and reduce cleaning manpower, making them an environmentally friendly product for safety control and infection prevention.

YLYu Lee
Yu Lee
Liang-Jen WangLiang-Jen Wang
Liang-Jen Wang
WCWen-Jiun Chou
Wen-Jiun Chou
MCMing-Chu Chiang
Ming-Chu Chiang
SHShan Huang
Shan Huang
MCMian-Yoon Chong
Mian-Yoon Chong
Epidemic viral infections, including the outbreak of severe acute respiratory syndrome (SARS) in 2003 and SARS-CoV-2 in 2019, have brought tremendous loss to people across the nations. The aim of this study was to compare the psychological impact of the SARS-CoV-2 pandemic in 2020 and the SARS pandemic in 2003 on hospital workers. Hospital workers at a medical center in Southern Taiwan (n = 1816) were invited to complete questionnaires (SARS-CoV-2 Exposure Experience, the Impact of Event Scale, the Chinese Health Questionnaire, and the Distress Thermometer). The current data were compared to the data collected from hospital workers (n = 1257) at the same medical center during the SARS pandemic in 2003. We found the psychological impact on hospital workers during the SARS-CoV-2 pandemic was significantly lower than that during the previous SARS period. During the SARS-CoV-2 pandemic period, hospital workers with SARS experience were more accepting of the risk, felt a greater responsibility to take care of the SARS-CoV-2 patients, and were more likely to perceive the danger of becoming infected. The associated factors of psychiatric morbidity in hospital workers with SARS experience were being female, the degree of intrusion severity, and severity of psychological distress. Proper management strategies and lessons learned from the SARS experience might have led to low psychiatric morbidity during the SARS-CoV-2 pandemic.

22 January 2024 in International Journal of Nursing and Health Care Research
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Journal Article
Open access
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WCWei-Chuan Chen
Wei-Chuan Chen
CTChun-Jen Huang Pei-Ling Tang
Chun-Jen Huang Pei-Ling Tang
BLBih-O Lee
Bih-O Lee
YLYu-Chih Lin
Yu-Chih Lin
Chih-Hung ChenChih-Hung Chen
Chih-Hung Chen
Validation of a Chinese Version of Perceived Implicit Rationing of Nursing Care (CPIRNCA) Scale in Taiwan