Jui‐Chang Tsai

ORCID: 0000-0003-2723-6841
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About
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Research Areas
  • Antimicrobial Resistance in Staphylococcus
  • Bacterial Identification and Susceptibility Testing
  • Bacterial biofilms and quorum sensing
  • Photodynamic Therapy Research Studies
  • Streptococcal Infections and Treatments
  • Infective Endocarditis Diagnosis and Management
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Neurosurgical Procedures and Complications
  • Digital Holography and Microscopy
  • Sympathectomy and Hyperhidrosis Treatments
  • Nanoplatforms for cancer theranostics
  • Glioma Diagnosis and Treatment
  • Laser Applications in Dentistry and Medicine
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Cancer, Hypoxia, and Metabolism
  • Intracranial Aneurysms: Treatment and Complications
  • Epigenetics and DNA Methylation
  • Head and Neck Surgical Oncology
  • Cerebrospinal fluid and hydrocephalus
  • Spinal Fractures and Fixation Techniques
  • Spine and Intervertebral Disc Pathology
  • Meningioma and schwannoma management
  • Genomics and Phylogenetic Studies
  • Glaucoma and retinal disorders
  • Oral Health Pathology and Treatment

New York Eye and Ear Infirmary
2024

Icahn School of Medicine at Mount Sinai
2024

National Taiwan University Hospital
2013-2022

National Taiwan University
2012-2021

National Taiwan University of Science and Technology
2013

Tao Yuan General Hospital
2012

I-Shou University
2011

Zero to Three
2011

Chang Gung University
2011

National Chung Cheng University
2011

✓ Vascular endothelial growth factor/vascular permeability factor (VEGF/VPF) is an cell—specific mitogen that structurally related to platelet-derived (PDGF). induces angiogenesis in vivo and may play a critical role tumor angiogenesis. Using immunohistochemical analysis, the authors demonstrated presence of VEGF/VPF protein surgical specimens glioblastoma multiforme cultured glioma cells. By means enzyme-linked immunosorbent assay (ELISA) cell supernatants, showed variably secreted by all...

10.3171/jns.1995.82.5.0864 article EN Journal of neurosurgery 1995-05-01

Vascular permeability factor/vascular endothelial growth factor (VPF/VEGF), an cell-specific cytokine, induces proliferation of cells and increases vascular dramatically. All gliomas secrete significant amounts VEGF, whereas meningiomas are variable in expression. Thus, we sought to determine whether the extent VPF/VEGF expression correlated with differences brain edema associated these tumors.Meningioma tissue samples from 37 patients (15 men, average age 65 +/- 13 yr; 22 women, 60 10 yr)...

10.1097/00006123-199706000-00029 article EN Neurosurgery 1997-06-01

Currently, the effectiveness of minimally invasive evacuation intracerebral hemorrhage (ICH) utilizing endoscopic method is uncertain and technique considered investigational. The authors analyzed their experience with this in terms case selection, surgical technique, long-term results.The performed a retrospective analysis clinical radiographic data obtained 68 patients treated endoscope-assisted ICH evacuation. Rebleeding, morbidity, mortality were recorded as primary end points. Hematoma...

10.3171/2011.2.focus10313 article EN Neurosurgical FOCUS 2011-04-01

Background. Carriage and subsequent infection with methicillin resistant S. aureus (MRSA) its transmission between hospital community settings have not been studied in dialysis patients their contacts. Methods. Surveillance for nasal MRSA carriage among patients, healthcare workers (HCWs) family members a centre was prospectively undertaken during three time periods within 1 year. Molecular typing used to determine epidemiological relationship. Results. Among 1687 samples collected,...

10.1093/ndt/gfm806 article EN Nephrology Dialysis Transplantation 2007-11-20

Three hundred palmar hyperhidrosis (PH) patients have been treated with video endoscopic laser sympathectomy during the last 2 years. Monitoring skin perfusion (PSP) and temperature (PST) has used intraoperatively to aid confirmation of correct sympathetic segment for ablation. The preoperative postoperative PSP PST response (SSR) also measured evaluate therapeutic effect this method. An apparent increase would occur after interruption T2 segment, then a gradual elevation follow extirpation...

10.1227/00006123-199402000-00009 article EN other-oa Neurosurgery 1994-02-01

A total of 71 fusidic acid-resistant Staphylococcus aureus (45 methicillin-resistant and 26 methicillin-susceptible) isolates were examined for the presence resistance determinants. Among 45 S. (MRSA), isolates, 38 (84%) had fusA mutations conferring high-level to acid (the MIC was ≥128 μg/ml 22/38), none fusB, 7 (16%) fusC. For methicillin-susceptible (MSSA), only 3 possessed mutations, but 15 (58%) fusB 8 (31%) Low-level (MICs ≤ 32 μg/ml) found in most fusB- or fusC-positive isolates. 41...

10.1128/aac.00523-10 article EN Antimicrobial Agents and Chemotherapy 2010-09-21

Abstract Background and Objectives In Taiwan, more than two million people have the betel quid (BQ) chewing habit which is a risk factor related to premalignant lesion squamous cell carcinoma of oral cavity. We developed light‐emitting diode (LED) array combined with topical 5‐aminolevulinic acid (ALA) for photodynamic therapy (PDT) evaluated its effectiveness treatment lesions. Study Design/Materials Methods compared ALA‐PDT effect homemade LED that commercial light source on cultured...

10.1002/lsm.10250 article EN Lasers in Surgery and Medicine 2004-01-01

ABSTRACT Susceptibilities to 16 antimicrobial agents were determined by measurement of MICs for 344 isolates anaerobic bacteria recovered from patients with significant infections. Resistance rates varied among and the species tested. The β-lactams more active in gram-positive than gram-negative anaerobes. meropenem was low (<1%). For β-lactam-β-lactamase inhibitors, piperacillin-tazobactam most all (resistance, <6%). resistance cefoxitin (31 65%) clindamycin (50 70%) non- Bacteroides...

10.1128/aac.46.9.2908-2913.2002 article EN Antimicrobial Agents and Chemotherapy 2002-09-01

Abstract Background and Objectives Multidrug‐resistant (MDR) Pseudomonas aeruginosa infection is becoming a critical problem worldwide. Currently, only limited therapeutic options are available for the treatment of infections caused by MDR P. , therefore, development new alternative treatments needed. Toluidine blue O (TBO) an effective antibacterial photosensitizing agent against various bacteria. However, reports on photosensitization bacteria limited. This study aims to determine in vitro...

10.1002/lsm.20765 article EN Lasers in Surgery and Medicine 2009-06-16

The full-length sequences of the groESL genes (also known as cpn10/60) Streptococcus anginosus, constellatus, gordonii, and sanguis near sequence intermedius, bovis, mitis, mutans, oralis, salivarius were determined. lengths groES from 10 species listed above ranged 282 to 288 bp, groEL determined for 4 (S. S. sanguis) revealed that each was 1,623 bp. intergenic region (spacer) between varies in size (15 111 bp) species. variation among tested greater (62.1 95.1% nucleotide identities) than...

10.1128/jcm.40.9.3172-3178.2002 article EN Journal of Clinical Microbiology 2002-08-29

Abstract Background and Objectives Photodynamic therapy (PDT) has been proposed as an alternative approach in overcoming multidrug resistance (MDR) phenotype. To verify whether 5‐aminolevulinic acid (ALA)‐mediated PDT is effective MDR cells, we studied the protoporphyrin IX (PpIX) content, intracellular localization, phototoxicity human breast cancer cells MCF‐7 derived subline, MCF‐7/ADR. Study Design/Materials Methods The fluorescence kinetics of ALA‐induced PpIX was evaluated by...

10.1002/lsm.10246 article EN Lasers in Surgery and Medicine 2004-01-01

ObjectivesSmall colony variants (SCVs) of Staphylococcus aureus are associated with persistent and drug-resistant infections. We demonstrated for the first time emergence SCVs in a patient vancomycin-intermediate S. (VISA) infection during long-term treatment daptomycin.

10.1093/jac/dkw060 article EN Journal of Antimicrobial Chemotherapy 2016-03-10

We analyzed the occurrence and mechanisms of fusidic acid resistance present in staphylococci isolated from 59 healthy volunteers. The fingers volunteers were screened for presence staphylococci, collected isolates tested to acid. A total 34 resistant staphylococcal strains (all coagulase-negative) 22 individuals (22/59, 37.3%). Examination genes revealed that acquired fusB or fusC was Staphylococcus epidermidis, capitis subsp. urealyticus, hominis hominis, warneri haemolyticus. Resistance...

10.1371/journal.pone.0143106 article EN cc-by PLoS ONE 2015-11-18

To evaluate the feasibility of detecting bacterial pathogens directly from clinical brain abscess specimens by polymerase chain reaction (PCR) amplification and sequencing 16S ribosomal deoxyribonucleic acid (rDNA).A total 14 were tested both culture PCR amplification, targeting full-length or a partial region rDNA. rDNA is known to be conserved in bacteria. Sequencing partial-length was performed. The sequence data compared with sequences National Center for Biotechnology Information...

10.1227/01.neu.0000140842.37422.ee article EN Neurosurgery 2004-10-29

Recent studies have revealed a correlation between specific genetic changes, such as loss of chromosome 1p and 19q, sensitivity oligodendroglial neoplasm to radiotherapy chemotherapy; epigenetic changes also play an important role in some tumors. In this retrospective study, we analyzed chromosomal alterations 17 loci promoter methylation status 8 tumor-related genes 49 tumors (29 WHO grade II 11 III oligodendrogliomas; 7 2 oligoastrocytomas) using quantitative microsatellite analysis...

10.1002/ijc.24303 article EN International Journal of Cancer 2009-02-03

Anesthesia can become inadequate inadvertently or by misjudgment during surgery emergence, and the surgical stress pain stimulation will increase without adequate treatment. Overt may activate sympathetic nervous system, blood level of catecholamines, lead to splanchnic arterial vasoconstriction.We divided 30 male Wistar rats into following 3 groups: control, (SSP), + dexmedetomidine (SSP Dex). The received midline laparotomy exteriorize a segment terminal ileum for microcirculation...

10.1213/ane.0b013e318253631c article EN Anesthesia & Analgesia 2012-04-14

The supraorbital keyhole approach has been used in anterior skull base tumor and aneurysm surgery. However, there are debates regarding the safety limitations of this kind approach.To determine feasibility potential benefits surgical robotic technology minimally invasive neurosurgery.Two fresh cadaver heads were studied with da Vinci Surgical System 0° 30° stereoscopic endoscopes to visualize neuroanatomy. ability system suture place clips under was tested.The throughout transeyebrow...

10.1227/neu.0b013e318270d9de article EN Neurosurgery 2012-12-20
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