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Lu CH, Tsai CC, Cheng CJ, Tiong C. An Unusual Yet Treatable Cause of Recurrent Abdominal Pain. Clin Res Hepatol Gastroenterol 2024:102360. [PMID: 38692352 DOI: 10.1016/j.clinre.2024.102360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/03/2024]
Affiliation(s)
- Chien-Hung Lu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan; TMU Research Center for Digestive Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Chia-Chin Tsai
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan.
| | - Chien-Jui Cheng
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Cheng Tiong
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; TMU Research Center for Digestive Medicine, Taipei Medical University, Taipei, Taiwan.
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2
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Ou TS, Sun YS, Lai CC, Chen WS, Tsai HC, Chen MH, Chou CT, Chang FP, Peng YC, Tsai CC, Liao HT, Tsai CY. Immune-mediated diseases after vaccinations with AZD1222, BNT-162b2, &/or mRNA-1273: An observational investigation of 78 patients. Int Immunopharmacol 2024; 127:111455. [PMID: 38157699 DOI: 10.1016/j.intimp.2023.111455] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Immune-mediated diseases (IMDs) after nucleic acid-based vaccines have been sporadically reported since their introduction during the worldwide COVID-19 crisis. Confirming their cause-effect association remains challenging. We analysed the effects of AZD1222 (ChAdOx1 nCoV-19), BNT-162b2, and/or mRNA-1273 on the development &/or deterioration of IMDs in terms of the time of clinical onsets of IMDs after exposure to these vaccines. METHODS We retrospectively reviewed 78 in-patients in Taipei Veterans General Hospital, who presented with IMDs within 120 days after receiving AZD1222, BNT-162b2, &/or mRNA-1273 vaccinations in Taiwan from May 2021 to April 2022. The duration from inoculation to development of IMD was analysed by two-tailed Kolmogorov-Smirnov (K-S) test for goodness of fit. RESULTS The average time to new IMDs or flare-up of the diseases following vaccinations was 36 ± 26 days for all 91 events in these 78 patients. The onset time of IMDs after vaccinations was not haphazard as analysed by two-tailed K-S test for overall 91 events (40 new and 51 deteriorating episodes, p < 0.001). The IMDs presenting as non-connective tissue diseases (non-CTDs) have a shorter duration of incubation after vaccinations than those of CTDs (<14.7 days, 95 % confidence interval [CI], 3.0 to 26.4, p = 0.014). Furthermore, systemic vasculitis and type 2 inflammatory diseases were observed exclusively in those receiving AZD1222. CONCLUSION AZD1222, BNT-162b2, or mRNA-1273 influence the activities of IMDs in ways yet to be explored. High index of suspicion to IMDs after nucleic acid-based vaccine inoculation against COVID-19 may be important for primary care physicians.
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Affiliation(s)
- Tao-Shen Ou
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Syuan Sun
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chien-Chih Lai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Sheng Chen
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hung-Cheng Tsai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Han Chen
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chung-Tei Chou
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fu-Pang Chang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yu-Ching Peng
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chia-Chin Tsai
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsien-Tzung Liao
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Chang-Youh Tsai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Immunology & Rheumatology, Department of Internal Medicine, Fu Jen Catholic University Hospital and College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
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3
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Tsai CC, Chang YC, Chang IW. Human pulmonary dirofilariasis mimicking a metastatic disease in a cancer patient. Asian J Surg 2024; 47:538-539. [PMID: 37775378 DOI: 10.1016/j.asjsur.2023.09.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/14/2023] [Indexed: 10/01/2023] Open
Affiliation(s)
- Chia-Chin Tsai
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yin-Chun Chang
- Division of Chest Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - I-Wei Chang
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Clinical Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Pathology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
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4
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Chen HH, Yi CA, Chen YC, Tsai CC, Lin PY, Huang HH. Influence of maxillary antrolith on the clinical outcome of implants placed simultaneously with osteotome sinus floor elevation: A retrospective radiographic study. Clin Implant Dent Relat Res 2021; 23:833-841. [PMID: 34405532 DOI: 10.1111/cid.13043] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Large antroliths and those located adjacent to the sinus floor can affect clinical interventions and increase the difficulty of implant placement performed simultaneously with osteotome sinus floor elevation surgery. PURPOSE This retrospective study investigated the clinical outcomes of implants placed simultaneously with osteotome sinus floor elevation subjacent to maxillary antroliths. MATERIAL AND METHODS Twenty implants inserted subjacent to or intruding into the antrolith after sinus floor elevation were evaluated in 18 patients. Cone-beam computed tomography (CBCT) was used to measure antrolith size and membrane thickness at sites of osteotome sinus floor elevation. Periapical radiographs were used to assess the height of grafted bone. Generalized estimating equation (GEE) analysis was performed to correlate the occurrence of antroliths with patient background characteristics and dental outcomes, based on a sample population of 239, among whom 33 presented antroliths. RESULTS The 20 implants remained clinically stable over a mean follow-up period of 42.4 months. The mean thickness of the sinus membrane at osteotome sites was 5.4 ± 3.3 mm. None of the cases presented sinus membrane perforation or sinus symptoms following osteotome intervention. The mean gain in the height of grafted sinus bone was 4.0 ± 1.4 mm at the last follow-up. The occurrence of antroliths was higher among females and the elderly (>49 years old). The multivariable GEE analysis showed that the adjusted odds ratio for the occurrence of antroliths with root canal fillings was significantly lower than those without root canal fillings (odds ratio = 0.33; 95% confidence interval = 0.11-0.96). CONCLUSION Our findings indicate that osteotome sinus floor elevation is a surgical procedure with a risk <17%. Thorough planning based on CBCT and careful management during surgery can eliminate the negative effects of antroliths on implant performance.
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Affiliation(s)
- Hsuan-Hung Chen
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Periodontology, Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chieh-An Yi
- Division of Periodontology, Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ya-Chi Chen
- Division of Periodontology, Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chia-Chin Tsai
- Department of Dentistry, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Po-Yen Lin
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Her-Hsiung Huang
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Oral Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan.,Department of Education and Research, Taipei City Hospital, Taipei, Taiwan.,Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
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5
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Abstract
Epigastric hernia involving the falciform ligament is exceptionally rare. Most reported cases are incisional hernia secondary to prior abdominal surgery. We report a case of primary falciform ligament herniation into the epigastric region repaired by the laparoscopic preperitoneal approach. In this case, an accompanying vessel along the herniated falciform ligament was identified. This finding provides a basis for the hypothesis of a perforating vessel piercing the linea alba and thereby creating a weak point for hernia protrusion (Moschowitz theory). The patient had an uneventful recovery and was discharged home on the postoperative day two. A laparoscopic preperitoneal approach is feasible for the repair of primary falciform ligament herniation. The magnified endoscopic view enables surgeons to achieve definite repair without missing occult defects.
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Affiliation(s)
- T J Liang
- Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,National Yang-Ming University, Taipei, Taiwan
| | - K C Wang
- Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - C C Tsai
- Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - I S Chen
- Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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6
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Tseng WL, Hung KS, Tsai CC, Lee YC. Externalized double monitoring skin paddles for buried anterolateral thigh flap in pharyngoesophageal reconstruction. Microsurgery 2018; 39:188-189. [PMID: 30508300 DOI: 10.1002/micr.30399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/17/2018] [Accepted: 10/24/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Wan-Ling Tseng
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuo-Shu Hung
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Chin Tsai
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yao-Chou Lee
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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7
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Wang KC, Tsai CC, Chang CH, Tseng WL, Hung KS, Chang TY, Chen SH, Lee YC. Comparison of flap outcomes between single- and multiple-perforator-based free anterolateral thigh flap in head and neck reconstruction. Microsurgery 2018; 39:150-155. [DOI: 10.1002/micr.30378] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 07/25/2018] [Accepted: 08/28/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Kuan-Chih Wang
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Chia-Chin Tsai
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Chih-Hao Chang
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Wan-Ling Tseng
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Kuo-Shu Hung
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Tzu-Yen Chang
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Szu-Han Chen
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
| | - Yao-Chou Lee
- Division of Plastic and Reconstructive Surgery, Department of Surgery; National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Tainan Taiwan
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8
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Fan CC, Chiu YC, Liu C, Lai WW, Cheng CH, Lin DL, Li GR, Lo YH, Chang CW, Tsai CC, Chang CY. The Impact of the Shallow-Trench Isolation Effect on Flicker Noise of Source Follower MOSFETs in a CMOS Image Sensor. J Nanosci Nanotechnol 2018; 18:4217-4221. [PMID: 29442765 DOI: 10.1166/jnn.2018.15239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The flicker noise of source follower transistors is the dominant noise source in image sensors. This paper reports a systematic study of the shallow trench isolation effect in transistors with different sizes under high temperature conditions that correspond to the quantity of empty defect sites. The effects of shallow trench isolation sidewall defects on flicker noise characteristics are investigated. In addition, the low-frequency noise and subthreshold swing degrade simultaneously in accordance to the device gate width scaling. Both serious subthreshold leakage and considerable noise can be attributed to the high trap density near the STI edge. Consequently, we propose a coincidental relationship between the noise level and the subthreshold characteristic; its trend is identical to the experiments and simulation results.
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Affiliation(s)
- C C Fan
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - Y C Chiu
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - C Liu
- Department of Electro-Physics, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - W W Lai
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - C H Cheng
- Department of Mechatronic Engineering, National Taiwan Normal University, Taipei, 106, Taiwan
| | - D L Lin
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - G R Li
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - Y H Lo
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C W Chang
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C C Tsai
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C Y Chang
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
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9
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Tsai CC, Hsieh CF, Hung CC, Chao CM, Lai CC. Sister Mary Joseph nodule. QJM 2015. [PMID: 26221042 DOI: 10.1093/qjmed/hcv135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C C Tsai
- Department of Emergency Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - C F Hsieh
- Division of Geriatrics and Gerontology, Department of Internal Medicine and Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - C C Hung
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - C M Chao
- Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying, Tainan, Taiwan.
| | - C C Lai
- Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying, Tainan, Taiwan.
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10
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Lin YS, Kuan CS, Weng IS, Tsai CC. Cultivar identification and genetic relationship of pineapple (Ananas comosus) cultivars using SSR markers. Genet Mol Res 2015; 14:15035-43. [PMID: 26634465 DOI: 10.4238/2015.november.24.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The genetic relationships among 27 pineapple [Ananas comosus (L.) Merr.] cultivars and lines were examined using 16 simple sequence repeat (SSR) markers. The number of alleles per locus of the SSR markers ranged from 2 to 6 (average 3.19), for a total of 51 alleles. Similarity coefficients were calculated on the basis of 51 amplified bands. A dendrogram was created according to the 16 SSR markers by the unweighted pair-group method. The banding patterns obtained from the SSR primers allowed most of the cultivars and lines to be distinguished, with the exception of vegetative clones. According to the dendrogram, the 27 pineapple cultivars and lines were clustered into three main clusters and four individual clusters. As expected, the dendrogram showed that derived cultivars and lines are closely related to their parental cultivars; the genetic relationships between pineapple cultivars agree with the genealogy of their breeding history. In addition, the analysis showed that there is no obvious correlation between SSR markers and morphological characters. In conclusion, SSR analysis is an efficient method for pineapple cultivar identification and can offer valuable informative characters to identify pineapple cultivars in Taiwan.
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Affiliation(s)
- Y S Lin
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C S Kuan
- Department of Horticulture, Chiayi Agricultural Experimental Station, Taiwan Agricultural Research Institute, Chiayi, Taiwan
| | - I S Weng
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C C Tsai
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
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11
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Shapovalyants SG, Michalev AI, Timofeev ME, Polushkin VG, Volkov VV, Oettinger AP, Lorenz R, Koch A, Köckerling F, Burcharth J, Andresen K, Pommergaard HC, Bisgaard T, Rosenberg J, Friis-Andersen H, Li JW, Le F, Zheng MH, Roscio F, Combi F, Frattini P, Clerici F, Scandroglio I, Zhao X, Nie Y, Liu J, Wang M, Kuo L, Tsai CC, Mok KT, Liu SI, Chen IS, Chou NH, Wang BW, Chen YC, Chang BM, Liang TJ, Kang CH, Tsai CY, Dudai M, Zeng YJ, Liu TL, Shi CM, Sun L, Shu R, Kawaguchi M, Takahashi Y, Tochimoto M, Horiguchi Y, Kato H, Tawaraya K, Hosokawa O, Huang C, Sorge A, Masoni L, Maglio R, Di Marzo F, Mosconi C, Gallinella Muzi M, Kato J, Iuamoto L, Meyer A, Almehdi R, Alazri Y, Sahoo B, Ahmed R, Nasser M, Inaba T, Fukuhsima R, Yaguchi Y, Horikawa M, Ogawa E, Kumata Y, Pokorny H, Fischer I, Resinger C, Lorenz V, Podar S, Längue F, Etherson K, Atkinson K, Khan S, Pradeep R, Viswanath Y, Munipalle PC, Chung J, Schuricht A, Magalhães C, Marcos M, Flores A, Sekmen U, Paksoy M, Ceriani F, Cutaia S, Canziani M, Caravati F. Inguinal Hernia: Recurrences, Tailored Surgery & Pubic Inguinal Pain Syndrome (Sportsman Hernia). Hernia 2015; 19 Suppl 1:S167-75. [PMID: 26518795 DOI: 10.1007/bf03355345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S G Shapovalyants
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - A I Michalev
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - M E Timofeev
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - V G Polushkin
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - V V Volkov
- Department of Hospital Surgery 2, Russian National Research Medical University, Moscow, Russia
| | - A P Oettinger
- Institution of Applied Medical Sciences, Russian National Research Medical University, Moscow, Russia
| | - R Lorenz
- Hernia Center 3 Chirurgen, Berlin, Germany
| | - A Koch
- Surgical Practise, Cottbus, Germany
| | - F Köckerling
- Klinik für Allgemein, Viszeral und Gefäβchirurgie, Vivantes Klinikum Spandau, Berlin, Germany
| | - J Burcharth
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - K Andresen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark.,Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - H-C Pommergaard
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - T Bisgaard
- Department of Surgery, Hvidovre Hospital, Hvidovre, Denmark.,The Danish Hernia Database, Copenhagen, Denmark
| | - J Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark.,The Danish Hernia Database, Copenhagen, Denmark.,Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | | | - J W Li
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | | | | | - F Roscio
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - F Combi
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - P Frattini
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - F Clerici
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - I Scandroglio
- Department of Surgery - Division of General Surgery, Galmarini Hospital, Tradate, Italy
| | - X Zhao
- Beijing Chao-Yang Hospital, Beijing, China
| | | | | | | | - L Kuo
- Department of General Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | | - M Dudai
- Hernia Excellence, Ramat Aviv Medical Center, Tel Aviv, Israel
| | - Y J Zeng
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - T L Liu
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - C M Shi
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - L Sun
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - R Shu
- Department of Gastroenterology and Hernia, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - M Kawaguchi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Y Takahashi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - M Tochimoto
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Y Horiguchi
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - H Kato
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - K Tawaraya
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - O Hosokawa
- Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - C Huang
- Cathay medical center, Taipei, Taiwan.,Taipei medical university, Taipei, Taiwan
| | - A Sorge
- Ospedale S. Giovanni Bosco, Napoli, Italy
| | | | - R Maglio
- Ospedale Israelitico, Roma, Italy
| | - F Di Marzo
- Ospedale S. Giovanni Bosco, Napoli, Italy
| | - C Mosconi
- Policlinico Universitario Tor Vergata, Roma, Italy
| | | | - J Kato
- University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - L Iuamoto
- University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - A Meyer
- Abdominal Wall Repair Center, Samaritano Hospital, Sao Paulo, Brazil
| | | | | | | | | | | | - T Inaba
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - R Fukuhsima
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Yaguchi
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - M Horikawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - E Ogawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Kumata
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - H Pokorny
- LK Wiener Neustadt, Wiener Neustadt, Austria
| | | | | | | | | | | | - K Etherson
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - K Atkinson
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - S Khan
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - R Pradeep
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | - Y Viswanath
- Department of Surgery, James Cook University Hospital, Middlesbrough, UK
| | | | - J Chung
- University of Pennsylvania Health System, Philadelphia, USA
| | - A Schuricht
- University of Pennsylvania Health System, Philadelphia, USA
| | | | - M Marcos
- Centro Hospitalar Porto, Porto, Portugal.,Institute Cuf, Porto, Portugal
| | - A Flores
- Centro Hospitalar Porto, Porto, Portugal.,Institute Cuf, Porto, Portugal
| | - U Sekmen
- Acibadem Hospital, Istanbul, Turkey
| | - M Paksoy
- Dept. of Gen. Surg., Istanbul Uni. Cerrahpasa Med. School, Istanbul, Turkey
| | - F Ceriani
- Multimedica Santa Maria, Castellanza, Va, Italy
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12
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Lai JM, Tsai CC, Yen CR, Ko YZ, Chen SR, Weng IS, Lin YS, Chiang YC. Molecular characterization of twenty polymorphic microsatellite markers in the polyploid fruit tree species Syzygium samarangense (Myrtaceae). Genet Mol Res 2015; 14:13013-21. [PMID: 26505454 DOI: 10.4238/2015.october.21.22] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Syzygium samarangense (Blume) Merr. & Perry (wax apple) is an important commercial fruit tree in Southeast Asia. Here, microsatellite markers were developed to evaluate genetic diversity and distinguish cultivars in this species. In total, 161 microsatellite loci with sufficient flanking sequences to design primer sets were isolated from wax apple using a magnetic bead-enrichment method. Fifty-eight primer sets were designed based on the flanking sequences of each single sequence repeat (SSR) locus and were tested using 14 wax apple cultivars/lines. Twenty SSR loci were found to be polymorphic and transferable across the 14 wax apple cultivars/lines. The number of alleles and effective number of alleles detected per locus ranged from 4 to 12 and from 1.697 to 9.800, respectively. The expected heterozygosity ranged from 0.150 to 0.595 (mean = 0.414). Polymorphism information content values ranged from 0.502 to 0.866 (mean = 0.763). These new microsatellite loci will be of value for characterization of genetic diversity in wax apples and for the identification of cultivars.
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Affiliation(s)
- J M Lai
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C C Tsai
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C R Yen
- National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Y Z Ko
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - S R Chen
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - I S Weng
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - Y S Lin
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - Y C Chiang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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13
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Liu CC, Lee YC, Tsai VFS, Cheng KH, Wu WJ, Bao BY, Huang CN, Yeh HC, Tsai CC, Wang CJ, Huang SP. The interaction of serum testosterone levels and androgen receptor CAG repeat polymorphism on the risk of erectile dysfunction in aging Taiwanese men. Andrology 2015. [PMID: 26216079 DOI: 10.1111/andr.12068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Testosterone has been found to play important roles in men's sexual function. However, the effects of testosterone can be modulated by androgen receptor (AR) CAG repeat polymorphism. It could also contribute to the risk of erectile dysfunction (ED). The aim of this study is to evaluate the interaction of serum testosterone levels and AR CAG repeat polymorphism on the risk of ED in aging Taiwanese men. This cross-sectional data of Taiwanese men older than 40 years were collected from a free health screening held between August 2010 and August 2011 in Kaohsiung city, Taiwan. All participants completed a health questionnaires included five-item version of the International Index of Erectile Function (IIEF-5) and the International Prostate Symptoms Score, received a detailed physical examination and provided 20 cm3 whole blood samples for biochemical and genetic evaluation. The IIEF-5 was used to evaluate ED. Serum albumin, total testosterone (TT), and sex hormone-binding globulin levels were measured. Free testosterone level was calculated. AR gene CAG repeat polymorphism was determined by direct sequencing. Finally, 478 men with the mean age of 55.7 ± 4.8 years were included. When TT levels were above 330 ng/dL, the effect of testosterone level on erectile function seemed to reach a plateau and a significantly negative correlation between AR CAG repeat length and the score of IIEF-5 was found (r = -0.119, p = 0.034). After adjusting for other covariates, the longer AR CAG repeat length was still an independent risk factor for ED in subjects with TT above 330 ng/dL (p = 0.006), but not in TT of 330 ng/dL or below. In conclusion, both serum testosterone levels and AR CAG repeat polymorphism can influence erectile function concomitantly. In subjects with normal TT concentration, those with longer AR CAG repeat lengths have a higher risk of developing ED.
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Affiliation(s)
- C C Liu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Depratment of Urology, Pingtung Hospital, Ministry of Health and Welfare, Executive Yuan, Pingtung, Taiwan
| | - Y C Lee
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - V F S Tsai
- Department of Urology, Ten-Chan General Hospital, Taoyuan, Taiwan
| | - K H Cheng
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - W J Wu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - B Y Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - C N Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - H C Yeh
- Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - C C Tsai
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - C J Wang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - S P Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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14
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Chen WH, Tsai CC, Lin CF, Tsai PY, Hwang WS. Pilot-scale study on the acid-catalyzed steam explosion of rice straw using a continuous pretreatment system. Bioresour Technol 2013. [PMID: 23201511 DOI: 10.1016/j.biortech.2012.10.111] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A continuous acid-catalyzed steam explosion pretreatment process and system to produce cellulosic ethanol was developed at the pilot-scale. The effects of the following parameters on the pretreatment efficiency of rice straw feedstocks were investigated: the acid concentration, the reaction temperature, the residence time, the feedstock size, the explosion pressure and the screw speed. The optimal presteaming horizontal reactor conditions for the pretreatment process are as follows: 1.7 rpm and 100-110 °C with an acid concentration of 1.3% (w/w). An acid-catalyzed steam explosion is then performed in the vertical reactor at 185 °C for 2 min. Approximately 73% of the total saccharification yield was obtained after the rice straw was pretreated under optimal conditions and subsequent enzymatic hydrolysis at a combined severity factor of 0.4-0.7. Moreover, good long-term stability and durability of the pretreatment system under continuous operation was observed.
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Affiliation(s)
- Wen-Hua Chen
- Chemistry Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan, ROC.
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15
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Müller BC, Brass M, Kühn S, Tsai CC, Nieuwboer W, Dijksterhuis A, van Baaren RB. When Pinocchio acts like a human, a wooden hand becomes embodied. Action co-representation for non-biological agents. Neuropsychologia 2011; 49:1373-1377. [PMID: 21241722 DOI: 10.1016/j.neuropsychologia.2011.01.022] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 01/08/2011] [Accepted: 01/11/2011] [Indexed: 11/24/2022]
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16
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Abstract
This study investigated the feasibility of reusing wastewater sludge ash in construction materials to replace partial materials. Wastewater sludge sampled from thermal power plant was burned into sludge ash at 800°C in the laboratory. The sludge incineration ash has low heavy metal including Pb, Cd, Cr and Cu, so it belongs to general enterprise waste. The chemical composition of sludge incineration ash was summed up in SiO₂, CaO, Fe₂O₃ and MgO. Then the wastewater sludge ash is also found to be a porous material with irregular surface. When the sludge ash was used to replace mortar or concrete cement, its water-adsorption capability will result in the reduction of mortar workability and compressive strength. Cement is being substituted for sludge ash, and 10 percent of sludge ash is more appropriate. Sludge ash is reused to take the place of construction materials and satisfies the requests of standard specification except for higher water absorption.
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Affiliation(s)
- F C Chang
- The Instrument Center of NCKU, National Cheng Kung University, Tainan City 701, Chinese Taiwan.
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17
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Wang Y, Huang WC, Wang CY, Tsai CC, Chen CL, Chang YT, Kai JI, Lin CF. Inhibiting glycogen synthase kinase-3 reduces endotoxaemic acute renal failure by down-regulating inflammation and renal cell apoptosis. Br J Pharmacol 2009; 157:1004-13. [PMID: 19508392 DOI: 10.1111/j.1476-5381.2009.00284.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND AND PURPOSE Excessive inflammation and apoptosis are pathological features of endotoxaemic acute renal failure. Activation of glycogen synthase kinase-3 (GSK-3) is involved in inflammation and apoptosis. We investigated the effects of inhibiting GSK-3 on lipopolysaccharide (LPS)-induced acute renal failure, nuclear factor-kappaB (NF-kappaB), inflammation and apoptosis. EXPERIMENTAL APPROACH The effects of inhibiting GSK-3 with inhibitors, including lithium chloride (LiCl) and 6-bromo-indirubin-3'-oxime (BIO), on LPS-treated (15 mg x kg(-1)) C3H/HeN mice (LiCl, 40 mg x kg(-1) and BIO, 2 mg x kg(-1)) and LPS-treated (1 microg x mL(-1)) renal epithelial cells (LiCl, 20 mM and BIO, 5 microM) were studied. Mouse survival was monitored and renal function was analysed by histological and serological examination. Cytokine and chemokine production, and cell apoptosis were measured by enzyme-linked immunosorbent assay and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labelling staining, respectively. Activation of NF-kappaB and GSK-3 was determined by immunostaining and Western blotting, respectively. KEY RESULTS Mice treated with GSK-3 inhibitors showed decreased mortality, renal tubular dilatation, vacuolization and sloughing, blood urea nitrogen, creatinine and renal cell apoptosis in response to endotoxaemia. Inhibiting GSK-3 reduced LPS-induced tumour necrosis factor-alpha (TNF-alpha) and CCL5/RANTES (released upon activation of normal T-cells) in vivo in mice and in vitro in murine kidney cortical collecting duct epithelial M1 cells. Inhibiting GSK-3 did not block TNF-alpha-induced cytotoxicity in rat kidney proximal tubular epithelial NRK52E or in M1 cells. CONCLUSIONS AND IMPLICATIONS These results suggest that GSK-3 inhibition protects against endotoxaemic acute renal failure mainly by down-regulating pro-inflammatory TNF-alpha and RANTES.
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Affiliation(s)
- Y Wang
- Department of Microbiology and Immunology, National Cheng Kung University Medical College, Tainan 701, Taiwan
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18
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Tsai CC, Choi J, Cho S, Lee SJ, Sarma BK, Thompson C, Chernyashevskyy O, Nevirkovets I, Ketterson JB. Microwave absorption measurements using a broad-band meanderline approach. Rev Sci Instrum 2009; 80:023904. [PMID: 19256659 DOI: 10.1063/1.3070471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We describe a technique that permits broad-band, field-dependent ferromagnetic and electron paramagnetic resonance absorption measurements that is applicable to thin films and patterned micro-/nanostructured arrays and is based on a wire-wound meanderline approach. Techniques to prepare meanderlines and perform microwave measurements are described along with some demonstrations involving an electron paramagnetic resonance calibration/test material, 2,2-diphenyl-1-picryl-hydrazyl, and a ferromagnetic cobalt thin film.
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Affiliation(s)
- C C Tsai
- Department of Engineering and Management of Advanced Technology, Chang Jung Christian University, Tainan 71101, Taiwan
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19
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Abstract
Abstract
The present study attempts to explore the process by which knowledge of another's intentional behavior in a joint-action scenario is represented through the action observation and execution network—also known as the common coding system. Participants (n = 18) were instructed to perform the complementary social Simon task under the implemented belief of interaction with either an unseen human (biological agent) or a computer program, where in fact, all response sequences from either “partner” were generated by computer. Results provide behavioral and neurophysiological evidence (P3 and S-LRP) that the believed intentionality of another person's actions is sufficient to facilitate a strong-enough agency-dependent social Simon effect to modulate action planning and anticipation. We suggest that the co-representation of human action may be an evolved biologically tuned default of the human motor system.
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Affiliation(s)
- Chia-Chin Tsai
- The Institute of Neuroscience, National Yang Ming University, 155 Linong Street Sec. 2, Peitou, Taipei, Taiwan
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20
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Tsai JH, Liu JY, Wu TT, Ho PC, Huang CY, Shyu JC, Hsieh YS, Tsai CC, Liu YC. Effects of silymarin on the resolution of liver fibrosis induced by carbon tetrachloride in rats. J Viral Hepat 2008; 15:508-14. [PMID: 18397225 DOI: 10.1111/j.1365-2893.2008.00971.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Silymarin, a standardized extract of the milk thistle (Silybum marianum), has a long tradition as a herbal remedy, and was introduced as a hepatoprotective agent a few years ago. However, the therapeutic effects of silymarin remain undefined. Carbon tetrachloride (CCl4) is a xenobiotic used extensively to induce oxidative stress and is one of the most widely used hepatic toxins for experimental induction of liver fibrosis in the laboratory. In this study, we investigated the restoration of the CCl4-induced hepatic fibrosis by high dose of silymarin in rats. After treatment with oil (as normal group; n = 6) or CCl4 [as model (n = 7) and therapeutic (n = 7) groups] by intragastric delivery for 8 weeks for the induction of liver fibrosis, the rats in the normal and model group were administered orally normal saline four times a week for 3 weeks whilst the therapeutic group received silymarin (200 mg/kg). The histopathological changes were observed with Masson staining. The results showed that the restoration of the CCl4-induced damage of liver fibrosis in the therapeutic group was significantly increased as compared to that in the model group. Moreover, silymarin significantly decreased the elevation of aspartate aminotransferase (AST), alanine aminotransferase, and alkaline phosphatase in serum, and also reversed the altered expressions of alpha-smooth muscle actin in liver tissue. Therefore, these findings indicated that silymarin may have the potential to increase the resolution of the CCl4-induced liver fibrosis in rats.
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Affiliation(s)
- J H Tsai
- Basic Medical Science Education Center, College of Medicine and Health, Fooyin University, Kaohsiung, Taiwan.
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21
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Tsai CC, Brass M. Does the human motor system simulate Pinocchio's actions? Coacting with a human hand versus a wooden hand in a dyadic interaction. Psychol Sci 2008; 18:1058-62. [PMID: 18031412 DOI: 10.1111/j.1467-9280.2007.02025.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Corepresenting actions performed by conspecifics is essential to understanding their goals, inferring their mental states, and cooperating with them. It has recently been demonstrated that joint-action effects in a Simon task provide a good index for corepresentation. In the present study, we investigated whether corepresentation is restricted to biological agents or also occurs for nonbiological events. Participants performed a Simon task either with an image of a human hand or with a wooden analogue. The Simon-like effect emerged only when participants coacted with a biological agent. The lack of the joint-action effect when participants interacted with a wooden hand indicates that the human corepresentation system is biologically tuned.
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Affiliation(s)
- Chia-Chin Tsai
- Institute of Neuroscience, National Yang Ming University, Taipei, Taiwan.
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22
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Emau P, Tian B, O'keefe BR, Mori T, McMahon JB, Palmer KE, Jiang Y, Bekele G, Tsai CC. Griffithsin, a potent HIV entry inhibitor, is an excellent candidate for anti-HIV microbicide. J Med Primatol 2007; 36:244-53. [PMID: 17669213 DOI: 10.1111/j.1600-0684.2007.00242.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The predominant mode of HIV-1 transmission is by heterosexual contact. The cervical/vaginal mucosa is the main port of HIV entry in women. A safe and effective topical microbicide against HIV is urgently needed to prevent sexual transmission. Hence, we evaluated griffithsin (GRFT), a 12.7 kDa carbohydrate-binding protein, both native and recombinant GRFT, potently inhibited both CXCR4-and CCR5-tropic HIV infection and transmission in vitro. METHODS The antiviral efficacy of native and recombinant GRFT against CXCR4-and CCR5-tropic HIV and SHIV strains and SIVmac251 was evaluated by in vitro assays. We also evaluated the time course of antiviral activity and stability of GRFT in cervical/vaginal lavage as a function of pH 4-8. RESULTS Griffithsin blocked CXCR4-and CCR5-tropic viruses at less than 1 nm concentrations and exhibited a high potency. GRFT was stable in cervical/vaginal lavage fluid and maintained a similar potency of anti-HIV activity. GRFT is not only a highly potent HIV entry inhibitor, but also prevents cell fusion and cell-to-cell transmission of HIV. CONCLUSIONS The in vitro efficacy of GRFT revealed low cytotoxicity, high potency, rapid onset of antiviral activity and long-term stability in cervical/vaginal lavage. GRFT is an excellent candidate for anti-HIV microbicide development.
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Affiliation(s)
- P Emau
- Washington National Primate Research Center, University of Washington, Seattle, WA 98195, USA
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23
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Tsai CC, Wei HC, Hsieh CH, Yu LP, Yu CR, Huang HS, Chou C. Characterization of a nematic PALC at large oblique incidence angles. Opt Express 2007; 15:10381-10389. [PMID: 19547390 DOI: 10.1364/oe.15.010381] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Compared with conventional photometric methods of measuring cell parameters, including the cell gap and the pretilt angle of a nematic parallel-aligned liquid crystal (PALC) using multiple wavelengths at normal incidence, this research proposes the use of a phase-sensitive interferometric ellipsometer to determine cell parameters precisely based on a single wavelength at large oblique incidence angles. The advantage of this method is that it detects the phase difference using an optical heterodyne interferometer in which a common phase noise rejection mode is provided. Thus, there is a high signal-to-noise ratio (SNR) on the phase measurement. In addition, a range of large oblique incidence angles on the PALC is used so that a high sensitivity measurement of the cell parameters is obtained experimentally. During the measurements, the multiple reflections and spatial shifting effect of the emerging extraordinary ray (E-ray) and ordinary ray (O-ray) from the PALC at large oblique incidence angles are able to be reduced effectively by the use of retro-reflected geometry in the interferometer. The experimental results verify that the sensitivities for the cell gap and pretilt angle measurements are 0.3 nm and 0.01 degrees , respectively.
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24
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Tsai CC, Kuo WJ, Jing JT, Hung DL, Tzeng OJL. A common coding framework in self–other interaction: evidence from joint action task. Exp Brain Res 2006; 175:353-62. [PMID: 16799815 DOI: 10.1007/s00221-006-0557-9] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2005] [Accepted: 05/10/2006] [Indexed: 10/24/2022]
Abstract
Many of our actions are influenced by the social context. Traditional approach attributes the influence of the social context to arousal state changes in a socially promotive way. The ideomotor approach, which postulates common coding between perceived events and intended actions, uses a conceptual scheme of ideomotor compatibility to explain self-other interaction. In this study, we recorded reaction times (RTs) and event-related potentials in a Go/NoGo task with stimulus-response (S-R) compatibility arrangement to examine how the social context affects self-other interaction. Although the social facilitation theory predicted that RTs would be faster when acting together with audience rather than acting alone, the ideomotor theory predicted S-R compatibility effects only for the joint condition. The results revealed S-R compatibility on the RTs, lateralized readiness potential of the Go trials, and P3 of the NoGo trials in the joint condition, which were in line with the predictions of the ideomotor theory. Owing to the anticipation of other's actions, self and other's actions are internally and unintentionally coded at the representational level and their functional equivalency can be realized through a common coding framework between perception and action systems. Social facilitation theory was not supported, because we found no significant data differences depending on the setting.
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Affiliation(s)
- Chia-Chin Tsai
- Laboratory for Cognitive Neuroscience, National Yang-Ming University, Taipei, Taiwan
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25
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Tsai CC, Glebov LB, Zeldovich BY. Adiabatic three-wave volume hologram: large efficiency independent of grating strength and polarization. Opt Lett 2006; 31:718-20. [PMID: 16544601 DOI: 10.1364/ol.31.000718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A transmission hologram with two volume gratings is considered in the regime of wave A diffracted into wave B via an intermediate weakly excited wave C. In analogy to the phenomenon of stimulated Raman adiabatic passage in nonlinear optics, this new scheme demonstrates diffraction efficiency with low sensitivity to the hologram's strength. A theory of three-wave adiabatic coupling has been developed and explored analytically. Numerical results show an example of a coupling profile that preserves high diffraction efficiency with almost no dependence on the hologram's strength, including the suppressed influence of polarization.
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Affiliation(s)
- C C Tsai
- College of Optics & Photonics/CREOL, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816-2700, USA
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26
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Huang JS, Tsai CC, Chou HH, Ting WH. Simulation modeling for nitrogen removal and experimental estimation of mass fractions of microbial groups in single-sludge system. Chemosphere 2006; 62:61-70. [PMID: 15936800 DOI: 10.1016/j.chemosphere.2005.04.013] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2004] [Revised: 03/26/2005] [Accepted: 04/06/2005] [Indexed: 05/02/2023]
Abstract
Nitrification-denitrification in a single-sludge nitrogen removal system (SSNRS; with a sufficient carbon source for denitrification) was performed. With an increase in the mixed liquor recycle ratio (R(m)) from 1 to 2, the total nitrogen (TN) removal efficiency at a lower volumetric loading rate (VLR=0.21 NH(4)(+)-N m(-3) d(-1)) increased, but the TN removal efficiency at a higher VLR (0.35 kg NH(4)(+)-N m(-3) d(-1)) decreased. A kinetic model that accounts for the mass fractions of Nitrosomonas, Nitrobacter, nitrate reducer and nitrite reducer (f(n1), f(n2), f(dn1), and f(dn2)) in the SSNRS and an experimental approach for the estimation of the mass fractions of nitrogen-related microbial groups are also proposed. The estimated f(dn1) plus f(dn2) (0.65-0.83) was significantly larger than the f(n1) plus f(n2) (0.28-0.32); the f(n1) (0.21-0.26) was larger than the f(n2) (0.05-0.07); and the f(dn1) (0.32-0.45) varied slightly with the f(dn2) (0.33-0.38). At the lower VLR, the f(dn1) plus f(dn2) increased with increasing R(m); however at the higher VLR, the f(dn1) plus f(dn2) did not increase with increasing R(m). By using the kinetic model, the calculated residual NH(4)(+)-N and NO(2)(-)-N in the anoxic reactor and NO(2)(-)-N and NO(3)(-)-N in the aerobic reactor were in fairly good agreement with the experimental data; the calculated NO(3)(-)-N in the anoxic reactor was over-estimated and the calculated NH(4)(+)-N in the aerobic reactor was under-estimated.
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Affiliation(s)
- J S Huang
- Department of Environmental Engineering, Kun Shan University of Technology, Tainan County 710, Taiwan, ROC.
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27
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Abstract
OBJECTIVES Reactive oxygen species (ROS) are implicated in the destruction of the periodontium during inflammatory periodontal diseases. The imbalance in oxidant/antioxidant activity may be a key factor in the damaging effects of ROS. This study aimed to determine the lipid peroxidation levels in gingival crevicular fluid and saliva, and glutathione (GSH) and glutathione peroxidase (GPx) in saliva in patients with chronic periodontitis. METHODS Gingival crevicular fluid and saliva were collected from 13 patients and 9 healthy control subjects during the preliminary study, and from 21 patients during the subsequent study. Lipid peroxidation level, GSH level and GPx activity were determined by spectrophotometric assay. RESULTS The preliminary study found that when comparing patients to healthy controls, the gingival crevicular fluid samples produced the following results, respectively: higher lipid peroxidation concentration (microm) (by sites: 167.55 vs. 53.71, p < 0.0001; by subjects: 151.99 vs. 50.66, p < 0.005) and total amount (pmol) (by sites: 93.02 vs. 8.47, p < 0.0001, by subjects: 80.44 vs. 7.84, p < 0.0005). In saliva samples, lower GSH concentration (microm) (373.04 vs. 606.67, p < 0.05), higher lipid peroxidation concentration (microm) (0.66 vs. 0.13, p < 0.0005), and no difference in GPx activity were found in patients than in those of healthy controls. The subsequent study showed statistically significant (p < 0.05) improvement of clinical periodontal parameters (plaque index, gingival index, probing attachment level, probing pocket depth and gingival crevicular fluid volume), decreases in gingival crevicular fluid lipid peroxidation levels (concentration and total amount) at the sites after the completion of phase 1 periodontal treatment. Similarly, the periodontal treatment resulted in a significant decrease of lipid peroxidation concentrations (p < 0.05), increase in GSH concentration (p < 0.001), and no change in GPx activity in saliva samples. CONCLUSION The increased levels of lipid peroxidation may play a role in the inflammation and destruction of the periodontium in periodontitis.
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Affiliation(s)
- C C Tsai
- Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical University, Taiwan.
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28
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Abstract
OBJECTIVES Amplification of the proto-oncogene c-erbB-2 (HER-2/neu) has been shown to be a prognostic marker in many kinds of cancer including oral squamous cell carcinoma (OSCC). In order to obtain further information on the c-erbB-2 gene product p185, it is necessary to quantify expression levels. In this study we used an enzyme-linked immunosorbent assay (ELISA) for the extracellular domain of p185 to determine whether a soluble oncoprotein fragment can be detected in the serum of OSCC patients. METHOD Sera from 84 OSCC patients, 51 breast cancer patients (as positive controls), and 15 healthy controls were assayed in an ELISA. To study c-erbB-2 overexpression in OSCC, and breast cancer tissue samples we used an immunohistochemical technique. RESULTS The mean serum value (ng/ml, mean/SD) for the normal controls was 8.46/1.29. We chose the 95% level of normal controls as a cut-off to distinguish individuals with elevated levels. The breast cancer patients' and OSCC patients' serum values were 13.83/6.82 and 13.1/4.56, respectively. Significant differences (P < 0.0001) were observed between normal control and OSCC, normal control and the breast cancer group. Immunohistochemically detectable p185 (intermediate to high) was noted in 30 of 61 OSCC, and 24 of 51 breast cancer patients. There was a trend of association of serum oncoprotein fragment levels with tumor stages, but not with tumor sizes, nodal stages, metastases, and oral habits including betel quid chewing, alcohol drinking and smoking in the OSCC group. CONCLUSION The results of the present study raise the possibility that soluble c-erbB-2 protein levels in serum is a useful parameter for monitoring the disease status as well as the effect of therapy on patients with OSCC.
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Affiliation(s)
- C H Chen
- Department of Oral Maxillofacial Surgery, Kaohsiunb Medical University, Kaohsiung, Taiwan
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Abstract
1. Loperamide has an ability to lower the plasma glucose concentration in streptozotocin (STZ)-induced diabetic rats. In the present study, we investigated the molecular mechanisms by which loperamide regulates plasma glucose concentrations in the absence of insulin. 2. Loperamide, at a dose sufficient (17.6 microg/kg) to activate mu-opioid receptors, significantly decreased plasma glucose levels in STZ-diabetic rats. The mRNA and protein levels of glucose transporter 4 (GLUT-4) in soleus muscle, detected by northern and western blotting, respectively, were increased after repeated intravenous administration of loperamide (17.6 micro g/kg) to STZ-diabetic rats over 3 days. Moreover, similar treatment with loperamide (17.6 microg/kg) for 3 days reversed the elevated mRNA and protein levels of phosphoenolpyruvate carboxykinase (PEPCK) in the liver of STZ-diabetic rats to near the levels seen in normal rats. 3. These results suggest that activation of mu-opioid receptors by loperamide can increase glucose utilization in peripheral tissues and/or reverse the higher gene expression of PEPCK to inhibit hepatic gluconeogenesis, thereby lower plasma glucose in diabetic rats lacking insulin.
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Affiliation(s)
- T F Tzeng
- Department of Internal Medicine, Pao Chien Hospital, Ping Tung City, Taiwan
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Hsieh KY, Hsu CI, Lin JY, Tsai CC, Lin RH. Oral administration of an edible-mushroom-derived protein inhibits the development of food-allergic reactions in mice. Clin Exp Allergy 2003; 33:1595-602. [PMID: 14616874 DOI: 10.1046/j.1365-2222.2003.01790.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Food allergy is a common disease without effective treatment. Since strict elimination of food allergens may be difficult, strategies for effective intervention are urgently needed. OBJECTIVE The aim was to investigate the prophylactic use of orally administrated FIP-fve, an immunomodulatory protein isolated from the edible mushroom Flammulina velutipes, in a murine model of food allergy. METHODS BALB/c mice were immunized twice intraperitoneally with ovalbumin (OVA), at an interval of 2 weeks. Before and during each period of immunization, FIP-fve (200 microg per mouse) or phosphate-buffered saline was given orally every other day with a total of five doses. Then OVA-specific antibodies and cytokine profiles were determined. Subsequently, the mice were orally challenged with OVA. Symptoms of anaphylaxis, levels of plasma histamine, and histology of intestines were examined. RESULTS Mice receiving oral FIP-fve treatment during sensitization to OVA had an impaired OVA-specific IgE response with a Th1-predominant cytokine profile. These mice were protected from systemic anaphylaxis-like symptoms induced by subsequent oral challenge with OVA. CONCLUSION Oral administration of FIP-fve has a Th1-skewing effect on the development of the allergen-specific immune response, and may serve the purpose of immunoprophylaxis for food allergy and other allergic diseases.
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Affiliation(s)
- K Y Hsieh
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Liu IM, Tzeng TF, Tsai CC, Lai TY, Chang CT, Cheng JT. Increase in adenosine A1 receptor gene expression in the liver of streptozotocin-induced diabetic rats. Diabetes Metab Res Rev 2003; 19:209-15. [PMID: 12789654 DOI: 10.1002/dmrr.369] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Adenosine A1 receptor (A1-AR) activation can lower plasma glucose in diabetic rats lacking insulin. We investigated the change in A1-AR gene expression in diabetic rats. METHODS The incorporation of [U-(14)C]-glucose into glycogen was carried out to evaluate the effect of N(6)-cyclopentyladenosine (CPA) on glucose utilization in vitro. The plasma glucose concentration was assessed by the glucose oxidase method. The mRNA and protein levels of A1-AR in isolated liver were detected by Western blotting analysis and Northern blotting analysis, respectively. RESULTS The effect of CPA, an agonist of A1-AR, on glycogen incorporation in hepatocytes isolated from streptozotocin-induced diabetic rats (STZ-diabetic rats) was more marked than that from the normal rats. However, similar glycogen synthesis was not modified by 12-O-tetradecanoylphorbol-13-acetate (TPA), an activator of protein kinase C, in the isolated hepatocytes from both the normal and the STZ-diabetic rats. A change in response at the receptor level can thus be considered. The mean level of liver mRNA transcripts encoding A1-AR was increased in STZ-diabetic rats to about 250% of that in normal rats. Exogenous insulin at a dose sufficient to normalize the plasma glucose of STZ-diabetic rats reversed the mRNA level of A1-AR in the liver after a four-day treatment. Similar results were also observed in STZ-diabetic rats that received treatment with phlorizin for four days. Moreover, the protein level of A1-AR was higher in the liver of STZ-diabetic rats than that in the normal rats. Similar treatment with exogenous insulin or phlorizin reversed the elevated protein level of A1-AR in the liver of STZ-diabetic rats to near the normal level. Therefore, correction of hyperglycemia in STZ-diabetic rats can reverse the higher gene expression of A1-AR in liver. CONCLUSIONS The obtained results suggest that an increase in plasma glucose is responsible for the higher gene expression of A1-AR in the liver of STZ-diabetic rats.
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Affiliation(s)
- I M Liu
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan 70101, Republic of China
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33
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Abstract
The effect of beta-endorphin on plasma glucose levels was investigated in streptozotocin-induced diabetic rats (STZ-diabetic rats). A dose-dependent lowering of plasma glucose was observed in the fasting STZ-diabetic rat fifteen minutes after intravenous injection of beta-endorphin. The plasma glucose-lowering effect of beta-endorphin was abolished by pretreatment with naloxone or naloxonazine at doses sufficient to block opioid mu-receptors. Also, unlike wild-type diabetic mice, beta-endorphin failed to induce its plasma glucose-lowering effect in the opioid mu-receptor knock-out diabetic mice. In isolated soleus muscle, beta-endorphin enhanced the uptake of radioactive glucose in a concentration-dependent manner. Stimulatory effects of beta-endorphin on glycogen synthesis were also seen in hepatocytes isolated from STZ-diabetic rats. The blockade of these actions by naloxone and naloxonazine indicated the mediation of opioid mu-receptors. In the presence of U73312, the specific inhibitor of phospholipase C (PLC), the uptake of radioactive glucose into isolated soleus muscle induced by beta-endorphin was reduced in a concentration-dependent manner, but it was not affected by U73343, the negative control of U73312. Moreover, chelerythrine and GF 109203X diminished the stimulatory action of beta-endorphin on the uptake of radioactive glucose at a concentration sufficient to inhibit protein kinase C (PKC). The data obtained suggest that activating opioid mu-receptors by beta-endorphin may increase glucose utilization in peripheral tissues via the PLC-PKC pathway to lower plasma glucose in diabetic rats lacking insulin.
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MESH Headings
- Animals
- Blood Glucose/metabolism
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Enzyme Inhibitors/pharmacology
- Glucose/pharmacokinetics
- Hepatocytes/drug effects
- Hepatocytes/metabolism
- In Vitro Techniques
- Male
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Naloxone/analogs & derivatives
- Naloxone/pharmacology
- Narcotic Antagonists/pharmacology
- Rats
- Rats, Wistar
- Receptors, Opioid, mu/deficiency
- Receptors, Opioid, mu/genetics
- Receptors, Opioid, mu/metabolism
- beta-Endorphin/antagonists & inhibitors
- beta-Endorphin/pharmacology
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Affiliation(s)
- J T Cheng
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan, ROC.
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Cheng YS, Cheng WC, Yao CH, Hsieh CL, Lin JG, Lai TY, Lin CC, Tsai CC. Effects of buyang huanwu decoction on peripheral nerve regeneration using silicone rubber chambers. Am J Chin Med 2002; 29:423-32. [PMID: 11789585 DOI: 10.1142/s0192415x01000447] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study investigated the effect of buyang huanwu decoction on the regeneration of a 10-mm gap of rat sciatic nerve created between the proximal and distal nerve stumps, which were sutured into silicone rubber tubes. Empty silicone rubber tubes with no further treatment were used as controls. Six weeks after implantation, 89% of the animals orally administered the buyang huanwu decoction exhibited regeneration across the nerve gaps, whereas only 70% had regenerated in the control group. Both qualitative and quantitative histology of the regenerated nerves revealed a more mature ultrastructural organization with significantly higher numbers of myelinated axons, larger endoneurial areas, higher axon densities and a larger percentage of axon area per total nerve area in the buyang huanwu group than in the controls. These results showed that the buyang huanwu decoction had a growth-promoting effect on the regenerated nerves.
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Affiliation(s)
- Y S Cheng
- Institute of Chinese Medical Science, China Medical College, Taichung, Taiwan
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35
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Chen YS, Yao CH, Chen TH, Lin JG, Hsieh CL, Lin CC, Lao CJ, Tsai CC. Effect of acupuncture stimulation on peripheral nerve regeneration using silicone rubber chambers. Am J Chin Med 2002; 29:377-85. [PMID: 11789580 DOI: 10.1142/s0192415x01000393] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The purpose of this study was to determine whether acupuncture could affect the regeneration of a 10-mm gap of rat sciatic nerve created between the proximal and distal nerve stumps, which were sutured into silicone rubber tubes. Empty silicone rubber tubes with no further treatment were used as controls. Six weeks after implantation, the animals received the acupuncture or the electroneedling treatment exhibited a more mature ultrastructural nerve organization with significantly higher numbers in the axon density, the blood vessel area, and the percentage of blood vessel area occupied in total nerve area than the controls. In addition, the electroneedling could combine both the needling and the electrical stimulation to potentiate the nerve-growth promoting effect of the acupuncture treatment. These results showed that acupuncture treatment could elicit positive effects on regenerated peripheral nerves.
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Affiliation(s)
- Y S Chen
- Institute of Chinese Medical Science, China Medical College, Taichung, Taiwan
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36
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Liu TP, Liu M, Tsai CC, Lai TY, Hsu FL, Cheng JT. Stimulatory effect of paeoniflorin on the release of noradrenaline from ileal synaptosomes of guinea-pig in-vitro. J Pharm Pharmacol 2002; 54:681-8. [PMID: 12005363 DOI: 10.1211/0022357021778835] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The effect of paeoniflorin (an active principle of Paeoniae Radix, commonly used in traditional Chinese medicine) on the release of noradrenaline (norepineprhine) from nerve terminals was investigated using guinea-pig isolated ileal synaptosomes. Release was determined as the amount of noradrenaline, quantified by high-performance liquid chromatography-electrochemical detection, from samples incubated with paeoniflorin or vehicle. Paeoniflorin stimulated the release of noradrenaline in a concentration-dependent manner without an effect on the level of lactate dehydrogenase in the bathing medium. Tetrodotoxin abolished the action of paeoniflorin at concentrations sufficient to block sodium channels. The depolarizing effect of paeoniflorin on the membrane potential was also illustrated by a concentration-dependent increase in the fluorescence of bisoxonol. Moreover, the effect of paeoniflorin on bisoxonol fluorescence in ileal synaptosomes seems more potent than that of 4-aminopyridine. That paeoniflorin causes influx of calcium ions via the depolarization of nerve terminals could be considered. The noradrenaline-releasing action of paeoniflorin was abolished by removal of calcium chloride from the bathing medium. This action of paeoniflorin was also attenuated by Rp-cAMP atconcentrations sufficientto inhibitthe action of cyclicAMP. Therefore, paeoniflorin could induce a calcium-dependent and cyclic-AMP-related release of noradrenaline from sympathetic nerve terminals of guinea-pig ileum. Guanethidine inhibited the noradrenaline-releasing action of paeoniflorin in a concentration-dependent manner. The effect of paeoniflorin on the increase of bisoxonol fluorescence was not modified by atropine. Release of noradrenaline by paeoniflorin from noradrenergic nerve terminals was characterized. These findings suggest that paeoniflorin can stimulate tetrodotoxin-sensitive depolarization of membranes to result in a calcium-dependent and cyclic-AMP-related release of noradrenaline from noradrenergic nerve terminals.
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Affiliation(s)
- T P Liu
- Department of General Surgery, Mackay Memorial Hospital, Taipei City, Taiwan
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Liu HJ, Hsu SF, Hsieh CC, Ho TY, Hsieh CL, Tsai CC, Lin JG. The effectiveness of Tsu-San-Li (St-36) and Tai-Chung (Li-3) acupoints for treatment of acute liver damage in rats. Am J Chin Med 2002; 29:221-6. [PMID: 11527065 DOI: 10.1142/s0192415x01000253] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This study investigated the effects of acupuncture on carbon tetrachloride (CCl4) induced acute liver injury in male rats (n=36). The experimental groups were injected with CCl4 before, during, or after acupuncture therapy. Acupoints similar to the human Tsu-San-Li (St-36) and Tai-Chung (Li-3) were needled bilaterally. Rats treated with CCl4 had higher levels of serum glutamate-oxalate-transaminase (sGOT) and serum glutamate-pyruvate-transaminase (sGPT). Comparing the experimental groups, biochemical and pathological parameters of liver injury were significantly reduced when rats were acupunctured after, not before, CCl4-induced hepatotoxicity. Acupuncture at the Tsu-San-Li and Tai-Chung acupoints cannot prevent acute liver injury but may be effective in treating liver injury induced by carbon tetrachloride in rats.
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Affiliation(s)
- H J Liu
- Acupuncture Research Center, Graduate Institute of Traditional Chinese Medicine, Taoyuan, Taiwan
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Chen YS, Hu CL, Hsieh CL, Lin JG, Tsai CC, Chen TH, Yao CH. Effects of percutaneous electrical stimulation on peripheral nerve regeneration using silicone rubber chambers. J Biomed Mater Res 2001; 57:541-9. [PMID: 11553884 DOI: 10.1002/1097-4636(20011215)57:4<541::aid-jbm1200>3.0.co;2-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The purpose of this study was to determine whether 0.8-1 mA, 2 Hz of percutaneous electrical stimulation could affect the regeneration of a 10-mm gap of rat sciatic nerve created between the proximal and distal nerve stumps, which were sutured into silicone rubber tubes. Six weeks after implantation, though the group receiving the electrical stimulation had a lower success percentage of regeneration (57%) compared with the controls receiving no stimulation (70%), quantitative histology of the successfully regenerated nerves revealed that the mean values of the axon density, blood vessel number, blood vessel area, and percentage of blood vessel area in total nerve area in the group with the electrical stimulation were all significantly larger than those in the controls (p < 0.05). These results showed that the electrical stimulation could elicit rehabilitating effects on the regenerated nerves.
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Affiliation(s)
- Y S Chen
- Institute of Chinese Medical Science, China Medical College, Taichung, Taiwan, ROC
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Abstract
Here we show that HDAC7, a member of the class II histone deacetylases, specifically targets several members of myocyte enhancer factors, MEF2A, -2C, and -2D, and inhibits their transcriptional activity. Furthermore, we demonstrate that DNA-bound MEF2C is capable of recruiting HDAC7, demonstrating that the HDAC7-dependent repression of transcription is not due to the inhibition of the MEF2 DNA binding activity. The data also suggest that the promoter bound MEF2 is potentially capable of remodeling adjacent nucleosomes via the recruitment of HDAC7. We have also observed a nucleocytoplasmic shuttling of HDAC7 and dissected the mechanism involved. In NIH3T3 cells, HDAC7 was primarily localized in the cytoplasm, essentially due to an active CRM1-dependent export of the protein from the nucleus. Interestingly, in HeLa cells, HDAC7 was predominantly nuclear. In these cells we could restore the cytoplasmic localization of HDAC7 by expressing CaMK I. This CaMK I-induced nuclear export of HDAC7 was abolished when three critical serines, Ser-178, Ser-344, and Ser-479, of HDAC7 were mutated. We show that these serines are involved in the direct interaction of HDAC7 with 14-3-3. Mutations of these serine residues weakened the association with 14-3-3 and dramatically enhanced the repression activity of HDAC7 in NIH3T3 cells, but not in HeLa cells. Data presented in this work clearly show that the signal dependent subcellular localization of HDAC7 is essential in controlling its activities. The data also show that the cellular concentration of factors such as 14-3-3, CaMK I, and other yet unknown molecules may determine the subcellular localization of an individual HDAC member in a cell type and HDAC-specific manner.
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Affiliation(s)
- H Y Kao
- Department of Biochemistry, School of Medicine, Case Western Reserve University, University Hospitals of Cleveland, 10900 Euclid Ave., Cleveland, OH 44106, USA.
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Lin KJ, Chen JC, Tsauer W, Lin CC, Lin JG, Tsai CC. Prophylactic effect of four prescriptions of traditional Chinese medicine on alpha-naphthylisothiocyanate and carbon tetrachloride induced toxicity in rats. Acta Pharmacol Sin 2001; 22:1159-67. [PMID: 11749818] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
AIM To study the prophylactic effects of four Chinese traditional prescriptions against experimental liver injury. METHODS Liver toxins, alpha-naphthylisothiocyanate (ANIT), and carbon tetrachloride (CCl4) were used to induce acute liver injury. Simo Yin(SMY), Guizhi Fuling Wan (GFW), Xieqing Wan (XQW), and Sini San (SNS) were fed (500 mg/kg, in saline, po) to the rats before toxin administration. All the animals were killed 48 h after toxin insulted. Serum index of liver function and hepatic lipid peroxidation (LPO) were estimated. Histopathological observation was conducted simultaneously. RESULTS The rats treated with ANIT exhibited elevations of serum total bilirubin (TBI), alkaline phosphatase (ALP), glutamate-oxalate- transaminase (GOT), glutamate-pyruvate-transaminase (GPT), as well as cholestasis and parenchyma necrosis. In rats, challenged with ANIT, receiving the pre-treatment of prescriptions of SMY, XQW, and SNS, the biochemical and morphological parameters of liver injury were significantly reduced. The increased LPO level in liver tissue, associated with the provoked serum GOT and GPT levels were the salient features observed in CCl4-insulting rats. Pre-treatment of four prescriptions showed a remarkable protective effect, and also was effective in counteracting the free radical toxicity by bringing about a significant decrease in peroxidative level. CONCLUSION These recipes ameliorate liver damage induced by both ANIT and CCl4 despite the differences in their mechanisms of injury. Therefore they may be able to exert hepatoprotective effects through more than one mechanism of action because they contained a mixture of anti-hepatotoxic ingredients with mutual reinforcement and assistance.
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Affiliation(s)
- K J Lin
- Department of Surgery, China Medical College-Hospital, Taichung, Taiwan, China
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41
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Su YC, Lin CJ, Chen KT, Lee SM, Lin JS, Tsai CC, Chou Y, Lin JG. Effects of huangqi jianzhong tang on hematological and biochemical parameters in judo athletes. Acta Pharmacol Sin 2001; 22:1154-8. [PMID: 11749817] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
AIM The purpose of the study was to investigate the effects of Huangqi Jianzhong Tang (HQJZT) on hematological and biochemical parameters in judo athletes. METHODS Sixteen male and eight female judo athletes in Hsin-Ming senior high school were randomly and stratified divided into control and experimental group, which received placebo and HQJZT respectively during the five-week training program. The measurement of the hematological and biochemical parameters was performed twice, just before and after the training. The data was analyzed with paired-t test and ANOVA. RESULTS The values of RBC, Hb, and Hct were obvious decreased after intervention, while the value of GOT, GPT, BUN, and CK was elevated. CONCLUSION The results indicated the hematological and biochemical changes were caused by the physical training but not the effects of HQJZT. The HQJZT had no adverse effects on the judo athletes in our study.
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Affiliation(s)
- Y C Su
- Institute of Chinese Medical Science, China Medical College, Taichung, Taiwan, China
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Abstract
The key difficulty of skin grafting is keeping the graft immobilized on uneven surfaces involved with motion, such as the nuchal area, axilla, web spaces, and the perineal area. This study reports the development of a new idea of negative pressure dressing (NPD) to maintain good immobilization of the skin graft and, at the same time, not cause any significant distress in the patient's daily life. Furthermore, the components of this dressing are available in ordinary hospitals. In this report, there are eight cases of skin grafts which were applied by this method, and the average success rate was approximately 97%. Therefore, use of negative pressure dressings to safeguard immobilization of the skin graft is an appropriate alternative method for grafts on uneven or mobile surfaces.
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Affiliation(s)
- K P Chang
- Division of Plastic and Reconstructive Surgery, Kaohsiung Medical University Hospital, 100 Shih-Chuan 1st Road, 807, Kaohsiung, Taiwan, ROC
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Abstract
The transverse rectus abdominis musculocutaneous (TRAM) flap is now accepted as the standard for breast reconstruction, but achieving symmetrical breast reconstruction is still a challenge. A precise estimate of the volume of the flap is necessary to reconstruct a symmetrical and aesthetically pleasing breast. Many methods have been developed to overcome this problem, but they have not been suitable for the pedicled TRAM flap. By using a self-made device based on the Archimedes' principle, the authors can calculate accurately the volume of the pedicled TRAM flap and predict reliably the breast volume intraoperatively. The "procedure" is based on a self-made box into which the pedicled TRAM flap is placed. Warm saline is added to the box and the flap is then removed. Flap volume is calculated easily by determining the difference between the preestimated volume of the box and the volume of the residual water. From February to May 2000, this method was used on 28 patients to predict breast volume for breast reconstruction. This study revealed that the difference of the maximal chest circumferences (the index of the breast volume) demonstrates a positive correlation with the difference of the volumes and weights between the mastectomy specimen and the net TRAM flap. However, a more closely positive correlation exists between the differences of maximal chest circumference volume (r = 0.677) than maximal chest circumference weight (r = 0.618). These data reveal that the reconstructed breast's volume has a closer relationship with the volume of the net pedicled TRAM flap, rather than with its weight.
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Affiliation(s)
- K P Chang
- Department of Surgery, Kaohsiung Medical University Hospital, Taiwan
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Chang Y, Tsai CC, Liang HC, Sung HW. Reconstruction of the right ventricular outflow tract with a bovine jugular vein graft fixed with a naturally occurring crosslinking agent (genipin) in a canine model. J Thorac Cardiovasc Surg 2001; 122:1208-18. [PMID: 11726898 DOI: 10.1067/mtc.2001.117624] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE This study was designed to evaluate a newly developed biologic valved conduit fixed with genipin used to reconstruct the right ventricular outflow tract in a canine model. METHODS Fresh bovine jugular veins with a retained native valve procured from a slaughterhouse were used as raw materials to fabricate the valved conduits. A naturally occurring crosslinking agent, genipin, was used to fix the procured jugular veins. The glutaraldehyde-fixed counterpart was used as a control. A canine model was used in the study. RESULTS Echocardiography revealed that the motion of the valvular leaflets in both the glutaraldehyde- and genipin-fixed conduits was satisfactory. The transvalvular pressure gradients of both studied groups were minimal. No endothelium-like cells were observed on the luminal surface of the conduit and the valvular leaflet for the glutaraldehyde-fixed group throughout the entire course of the study. In contrast, endothelium-like cells were observed on the entire surface of the genipin-fixed valved conduit retrieved at 6 months postoperatively in all the cases studied. There was no evidence of luminal fibrous peel in any the valved conduits studied. Degradation of valvular leaflet in one of the glutaraldehyde-fixed conduits was observed. In this particular case, thrombus formation was also observed on the surface of the valvular leaflet. On the other hand, no apparent degradation or thrombus formation was observed on the surfaces of the genipin-fixed valvular leaflet and conduit. A significantly more severe inflammatory reaction was observed for the glutaraldehyde-fixed conduit than for its genipin-fixed counterpart throughout the entire course of the study. The calcium contents of the samples before implantation and those retrieved at distinct implantation duration were minimal for both the glutaraldehyde- and genipin-fixed tissues. CONCLUSION Although further studies are necessary, the genipin-fixed valved conduit appears to have great potential in helping mitigate the complications observed in the commercially available conduits.
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Affiliation(s)
- Y Chang
- Division of Cardiovascular Surgery, Veterans General Hospital-Taichung, and College of Medicine, National Yang-Ming University, Taipei, Taiwan
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45
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Abstract
The purpose of the study was to investigate the effects of two constituents of Panax notoginseng flower extract, Ginsenoside Rb2 and Rc, on human sperm motility and progression in vitro. Semen samples were collected from 20 patients with sperm motility between 20% and 40% of normal. All samples had sperm counts of over 20 million per milliliter, in accordance with the World Health Organization standard. Sperm were separated by a Percoll discontinuous gradient technique, and divided into a Percoll sperm control group, and three Ginsenoside Rb2 experimental groups (0.1, 0.01 and 0.001 mg/ml) and three Ginsenoside Rc experimental groups (0.1, 0.01 and 0.001 mg/ml). The results showed that at concentrations of 0.01 mg/ml and 0.001 mg/ml, Ginsenoside Rc enhanced both sperm motility and sperm progression significantly at the end of the 1st and 2nd hour. However, the three concentrations of Ginsenoside Rb2 did not increase sperm motility at the 1st or 2nd hour, but promoted sperm progression at the 2nd hour, when compared to the Percoll group.
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Affiliation(s)
- J C Chen
- Research Institute of Chinese Medicine, China Medical College, Taichung, Taiwan
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46
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Tsai CC, Lin TM, Lai CS, Lin SD. Nonendoscopic harvest of the gastrocnemius muscle flap through a small incision. Ann Plast Surg 2001; 47:134-7. [PMID: 11506320 DOI: 10.1097/00000637-200108000-00005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Traditional gastrocnemius flap harvest requires a long skin incision, starting from the popliteal fossa to the mid leg. The authors designed three instruments to facilitate harvest of this flap through a small incision without the help of an endoscope in 10 patients. All 10 gastrocnemius muscle flaps survived with a 100% success rate.
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Affiliation(s)
- C C Tsai
- Department of Surgery, Chung-Ho Memorial Hospital, Kaohsiung Medical University, Taiwan
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47
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Cheng AL, Hsu CH, Lin JK, Hsu MM, Ho YF, Shen TS, Ko JY, Lin JT, Lin BR, Ming-Shiang W, Yu HS, Jee SH, Chen GS, Chen TM, Chen CA, Lai MK, Pu YS, Pan MH, Wang YJ, Tsai CC, Hsieh CY. Phase I clinical trial of curcumin, a chemopreventive agent, in patients with high-risk or pre-malignant lesions. Anticancer Res 2001; 21:2895-900. [PMID: 11712783] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Curcumin (diferuloylmethane), a yellow substance from the root of the plant Curcuma longa Linn., has been demonstrated to inhibit carcinogenesis of murine skin, stomach, intestine and liver. However, the toxicology, pharmacokinetics and biologically effective dose of curcumin in humans have not been reported. This prospective phase-I study evaluated these issues of curcumin in patients with one of the following five high-risk conditions: 1) recently resected urinary bladder cancer; 2) arsenic Bowen's disease of the skin; 3) uterine cervical intraepithelial neoplasm (CIN); 4) oral leucoplakia; and 5) intestinal metaplasia of the stomach. Curcumin was taken orally for 3 months. Biopsy of the lesion sites was done immediately before and 3 months after starting curcumin treament. The starting dose was 500 mg/day. If no toxicity > or = grade II was noted in at least 3 successive patients, the dose was then escalated to another level in the order of 1,000, 2,000, 4,000, 8,000, and 12,000 mg/day. The concentration of curcumin in serum and urine was determined by high pressure liquid chromatography (HPLC). A total of 25 patients were enrolled in this study. There was no treatment-related toxicity up to 8,000 mg/day. Beyond 8,000 mg/day, the bulky volume of the drug was unacceptable to the patients. The serum concentration of curcumin usually peaked at 1 to 2 hours after oral intake of crucumin and gradually declined within 12 hours. The average peak serum concentrations after taking 4,000 mg, 6,000 mg and 8,000 mg of curcumin were 0.51 +/- 0.11 microM, 0.63 +/- 0.06 microM and 1.77 +/- 1.87 microM, respectively. Urinary excretion of curcumin was undetectable. One of 4 patients with CIN and 1 of 7 patients with oral leucoplakia proceeded to develop frank malignancies in spite of curcumin treatment. In contrast, histologic improvement of precancerous lesions was seen in 1 out of 2 patients with recently resected bladder cancer, 2 out of 7 patients of oral leucoplakia, 1 out of 6 patients of intestinal metaplasia of the stomach, I out of 4 patients with CIN and 2 out of 6 patients with Bowen's disease. In conclusion, this study demonstrated that curcumin is not toxic to humans up to 8,000 mg/day when taken by mouth for 3 months. Our results also suggest a biologic effect of curcumin in the chemoprevention of cancer.
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Affiliation(s)
- A L Cheng
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei.
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Yen JH, Tsai CC, Su CC, Wang YS. Environmental dissipation of fungicide triphenyltin acetate and its potential as a groundwater contaminant. Ecotoxicol Environ Saf 2001; 49:164-170. [PMID: 11386730 DOI: 10.1006/eesa.2001.2053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effects of various factors on fungicide triphenyltin acetate dissipation in selected soil types were studied; temperature is clearly the most important factor of these. Residues of this fungicide in Fangtzupo clay loam and Lanyang loam incubated at 30 degrees C for 32 days (water content 100, 70, or 40% of field capacity) were 25% of the original amounts. In soil samples incubated at 10, 30, or 40 degrees C with 100% field capacity water content, residues were 80, 26, and 5.5% for Fangtzupo soil, respectively, and 83, 26, and 7.0% for Lanyang soil, respectively. No significant difference in dissipation rate was found between sterilized and unsterilized soil, suggesting that microbial degradation is not an important factor in this process. Rapid degradation rates were observed-half-lives of 8.3 to 19.4 days in Fangtzupo clay loam and 8.0 to 16.3 days in Lanyang loam at temperatures ranging from 30 to 40 degrees C (soil water content of 100, 70, and 40% of field capacity). Significant increases in half-life (approximately 150 days) occurred at lower temperatures (10 degrees C) in both soil types. The potential of triphenyltin acetate to contaminate groundwater was tested using the behavior assessment and groundwater pollution-potential models. Results indicate that the leaching rate of the fungicide is very slow (1.0 cm day(-1)) under normal conditions.
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Affiliation(s)
- J H Yen
- Department of Agricultural Chemistry, National Taiwan University, Taipei, 10617, Taiwan
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49
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Abstract
This study explored the interplay between young people's attitudes toward computer networks and Internet addiction. Ninety possible Internet addicts were selected for examination after analyzing the questionnaire responses of an initial sample of 753 Taiwanese high school adolescents. It was found that the subjects' attitudes toward computer networks could explain many aspects of Internet addiction. However, actual behaviors on Internet usage and perceptions on the usefulness of Internet were more important than affective responses toward computer networks in predicting adolescents' Internet addiction.
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Affiliation(s)
- C C Tsai
- Center for Teacher Education, National Chiao Tung University, 1001 Ta Hsueh Rd., Hsinchu, Taiwan, Republic of China.
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Lai CS, Lin TM, Tsai CC, Lin SD, Su JH. Endometrioma in a cesarean section scar--a case report. Kaohsiung J Med Sci 2001; 17:381-4. [PMID: 11593966] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
Scar endometriosis remains quite rare and there is only one case report in the literature of plastic surgery. We present a case of endometrioma appearing on the cesarean section scar. The classic symptom was a painful scar that became swollen and more tender during menstruation. The cause of surgical scar endometriosis is believed to be iatrogenic transplantation of endometrium to the surgical wound. Surgical excision remains the treatment of choice. This entity must be kept in mind by plastic surgeons evaluating patients who present with soft-tissue masses of the abdominal wall in the setting of previous combined hysterectomy and abdominoplasty.
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Affiliation(s)
- C S Lai
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 807, Taiwan.
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