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379 results on '"Wang, Chen-Chi"'

52. Anatomical-based classification for transoral base of tongue resection.

Author

UCL - SSS/IREC/MONT - Pôle Mont Godinne, UCL - (MGD) Service d'oto-rhino-laryngologie, De Virgilio, Armando, Kim, Se-Heon, Wang, Chen-Chi, Holsinger, Floyd Christopher, Magnuson, Scott, Lawson, Georges, Pellini, Raul, Mercante, Giuseppe, Costantino, Andrea, Spriano, Giuseppe, UCL - SSS/IREC/MONT - Pôle Mont Godinne, UCL - (MGD) Service d'oto-rhino-laryngologie, De Virgilio, Armando, Kim, Se-Heon, Wang, Chen-Chi, Holsinger, Floyd Christopher, Magnuson, Scott, Lawson, Georges, Pellini, Raul, Mercante, Giuseppe, Costantino, Andrea, and Spriano, Giuseppe

Abstract

BACKGROUND: To propose a classification of transoral base of tongue (BOT) procedures able to provide uniform terminology in order to better define postoperative results. METHODS: The classification resulted from the consensus of the different authors and is based on anatomical and surgical principles. RESULTS: The classification comprises three types of BOT resections: type 1 is the resection of the entire lingual tonsil to the muscular plane; type 2 is performed by removing the entire lingual tonsil and part of BOT muscles; type 3 is performed by removing the entire lingual tonsil and the entire BOT muscles. Based on the extension of the dissection, we can use the suffix A (contralateral BOT), B (supraglottic larynx), C (lateral oropharynx), and/or D (oral tongue). CONCLUSION: The proposed classification could allow us to easily compare data from different centers.

Published
2021

76. Role of particle size in nanocrystalline TiO2-based photocatalysts

Author

Zhang, Zhibo, Wang, Chen-Chi, Zakaria, Rama, and Ying, Jackie Y.

Subjects
Titanium dioxide -- Research, Catalysts -- Research, Particles -- Research, Chemicals, plastics and rubber industries
Abstract

Research was conducted to examine the influence of particle size in pure and doped nanocrystalline TiO2 photocatalysts. Preparation was performed by a versatile wet-chemical process that yielded near-agglomeration-free TiO2 with well-controlled dopant dispersion and well-controlled particle sizes. Results indicate that particle size has an important role to play in nanocrystalline TiO2-based photocatalysts mostly through influencing the dynamics of e-/h+ recombination.

Published
1998

80. Saliva Pepsin Detection and Proton Pump Inhibitor Response in Suspected Laryngopharyngeal Reflux.

Author

Wang, Ching‐Ping, Wang, Chen‐Chi, Lien, Han‐Chung, Lin, Wen‐Jiun, Wu, Shang‐Heng, Liang, Kai‐Li, Liu, Shih‐An, Wang, Ching-Ping, Wang, Chen-Chi, Lien, Han-Chung, Lin, Wen-Jiun, Wu, Shang-Heng, Liang, Kai-Li, and Liu, Shih-An

Abstract

Objectives/hypothesis: To evaluate the prediction value of saliva pepsin detection for an 8-week proton pump inhibitor (PPI) response in patients with a Reflux Symptoms Index (RSI) score ≥13, which indicates possible laryngopharyngeal reflux.Study Design: Prospective individual single-cohort study.Methods: Patients were recruited who had experienced chronic laryngopharyngeal symptoms (RSI score ≥13) for more than 3 months after excluding other etiologies. The patients received PPI (40 mg of esomeprazole once daily) treatment for 8 weeks. Prior to treatment, the patients submitted saliva/sputum samples that were collected during the time symptoms were observed. The samples were taken for pepsin detection, and performed using the commercially available Peptest lateral flow device. The association of the Peptest results and PPI response were statistically analyzed with the χ2 test.Results: Seventy-four patients completed the study, and upon completion of PPI treatment, the mean RSI score was significantly reduced from 19.22 ± 5.18 to 8.99 ± 5.69. Forty-four (59.5%) patients exhibited a good response as defined by an RSI score reduction ≥50%. The results of the Peptest were semiquantitatively graded as 0, 1, 2, 3 (negative, weak positive, moderate positive and strong positive, respectively) based upon the visual intensity of the test sample line as compared to the control line. Twenty-four patients (32.4%) exhibited grade 3 strong positive results. The Peptest strong positive results (P < .05) were significantly associated with a good PPI response, with the positive predictive value being 79.2%.Conclusions: Analysis of strong positive results for pepsin detection in saliva/sputum samples may be a useful, noninvasive method for predicting better PPI response in patients with suspected reflux induced chronic laryngopharyngeal symptoms.Level Of Evidence: 2 Laryngoscope, 129:709-714, 2019. [ABSTRACT FROM AUTHOR]

Published
2019
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87. Activation of SF1 Neurons in the Ventromedial Hypothalamus by DREADD Technology Increases Insulin Sensitivity in Peripheral Tissues

Author

Coutinho, Eulalia A., primary, Okamoto, Shiki, additional, Ishikawa, Ayako Wendy, additional, Yokota, Shigefumi, additional, Wada, Nobuhiro, additional, Hirabayashi, Takahiro, additional, Saito, Kumiko, additional, Sato, Tatsuya, additional, Takagi, Kazuyo, additional, Wang, Chen-Chi, additional, Kobayashi, Kenta, additional, Ogawa, Yoshihiro, additional, Shioda, Seiji, additional, Yoshimura, Yumiko, additional, and Minokoshi, Yasuhiko, additional

Published
2017
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89. Laryngeal electromyography and prognosis of unilateral vocal fold paralysis--a long-term prospective study

Author

Wang, Chen Chi, Chang, Ming Hong, DE VIRGILIO, Armando, Jiang, Rong San, Lai, Hsiu Chin, Wang, Ching Ping, Shang Heng, Wu, and Liu, Shih An

Subjects
Adult, Male, Time Factors, Risk Assessment, Severity of Illness Index, Cohort Studies, Young Adult, Predictive Value of Tests, Recurrence, Fibrillation, laryngeal electromyography, prognosis, recruitment reduction, vocal fold paralysis, Aged, Aged, 80 and over, Electromyography, Female, Humans, Middle Aged, Prognosis, Prospective Studies, Treatment Outcome, Vocal Cord Paralysis, Otorhinolaryngology2734 Pathology and Forensic Medicine, Medicine (all), 80 and over
Abstract

To confirm the value of using laryngeal electromyography (LEMG) to predict the long-term prognosis of unilateral vocal fold paralysis (UVFP), and elucidate the adequate timing of LEMG.Prospective cohort prognosis study.The LEMG data of 84 patients with UVFP were prospectively collected, and 81 patients received follow-up at least 6 months after symptom onset. If the paralyzed vocal fold had20% recruitment reduction during phonation compared to the normal vocal fold signals, and absence of fibrillation when the patient was silent, the prognosis was considered to be good (negative finding). Otherwise, the prognosis was considered to be poor (positive finding). The association between UVFP outcome and LEMG prognostic rules and the accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of LEMG were calculated.The mean duration of LEMG after symptom onset was 3.7 months, and follow-up after symptoms onset was 18.4 months. Sixty-six of 71 patients with a positive finding had persistent UVFP; four of 10 patients with a negative finding recovered vocal fold motion. LEMG results were significantly associated with the outcome of UVFP (P = .007). The overall accuracy, sensitivity, specificity, PPV, and NPV of LEMG were 86.4%, 91.7%, 44.4%, 93.0%, and 40.0%, respectively. When LEMG was done more than 2 months after symptom onset, the PPV was 97.9%.LEMG has a high PPV in predicting the long-term outcome of UVFP patients with poor prognosis. Permanent laryngeal framework surgery is feasible if patients have positive findings at least 2 months after symptom onset.

Published
2014

94. Diagnosis and treatment of lipomas of the internal auditory canal

Author

Wang, Chen-Chi, Tien, Hui-Chi, and Hsu, Chen-Yi

Subjects
Head and neck tumors -- Care and treatment, Auditory meatus, Internal -- Medical examination, Tinnitus -- Causes of
Abstract

Abstract A Chinese woman came to the otolaryngology department with a complaint of a longstanding progressive left hearing loss and intractable tinnitus. A finding of asymmetry on sensorineural hearing loss [...]

Published
2001

100. Identification of genes for two major sialoglycoproteins, glycophorin A and glycophorin C in canine red cell membranes

Author

Kota, Sato, Yayoi, Otsuka, Nobuto, Arashiki, Tomohiko, Komatsu, Wang, Chen-Chi, Satoshi, Tamahara, and Mutsumi, Inaba

Subjects
DNA, Complementary, Base Sequence, Erythrocyte Membrane, Immunoblotting, Molecular Sequence Data, Bone Marrow Cells, Dogs, Species Specificity, Animals, Humans, Protein Isoforms, Cattle, Electrophoresis, Polyacrylamide Gel, Female, Amino Acid Sequence, Glycophorins, Cloning, Molecular, Nucleic Acid Amplification Techniques, Sequence Alignment
Abstract

Glycophorins are the major sialoglycoproteins in red blood cell membranes, possessing various physiological and pathological roles. We examined membrane glycoproteins in canine red cells and cloned cDNAs for two major glycophorins, glycophorins A (GPA) and C (GPC) from bone marrow cells. Periodic acid-Schiff staining and immunoblotting analyses showed that canine red cell membranes contained several glycoproteins immunoreactive to an anti-bovine GPC antibody, whereas the most abundant sialoglycoproteins, the candidates for GPA, did not react with an anti-human GPA antibody. The amino acid sequences of the extracellular domains of GPA and GPC had no significant homology to those from other mammalian species, including humans, and had O-linked and/or N-linked glycosylation sites. On the other hand, the C-terminal cytoplasmic domain and/or the transmembrane helices of GPA and GPC were conserved among species, indicating some functional significance of those regions in red cell membranes that include dimerization of GPA in the membrane-spanning region, and association of GPC with membrane skeletal proteins through binding with protein 4.1 and p55 in the cytoplasmic domain. These findings provide insights for clinical studies to evaluate the involvement of GPA and GPC in the pathogenesis of red cell diseases.

Published
2008

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