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Yoshikuni Y, Iijima M, Takahashi G, Okumura T, Kogure T, Suzuki M. Effect of phosphoproteins on intracellular calcification of bacteria. Eur J Oral Sci 2023; 131:e12929. [PMID: 36929523 DOI: 10.1111/eos.12929] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 02/22/2023] [Indexed: 03/18/2023]
Abstract
This study aimed to evaluate the effects of phosphoproteins on bacterial mineralization. Dental calculus formation is attributed to bacterial mineralization in the oral cavity; however, the influence of phosphoproteins (which are abundant in saliva) is not clear. The model bacterium Escherichia coli was suspended in a calcification solution containing casein as a model phosphoprotein. To evaluate mineralization independent of bacterial metabolism, bacteria killed by heat treatment at 70°C were compared with viable bacteria. After incubation at 37°C for 24 h, the mode of calcification was observed using electron microscopy and energy dispersive x-ray spectroscopy. Solutions without casein produced precipitation in solution, which was identical to that in experiments without bacteria. In contrast, calcification solutions with 200 ppm casein only produced calcium phosphate deposition intracellularly. Without heat treatment, intracellular calcification rarely occurred, even when casein was added. Thus, phosphoproteins promoted intracellular calcification of dead bacteria; this is similar to the calcification of insoluble matrices, such as collagen fibrils, promoted by acidic polymers. We concluded that intracellular calcification is caused by the collagen fibril-like behavior of dead bacteria. The promotion of intracellular calcification of dead bacteria by phosphoproteins suggested a basic principle of dental calculus formation.
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Affiliation(s)
- Yukihisa Yoshikuni
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mayumi Iijima
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Gen Takahashi
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Taiga Okumura
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Toshihiro Kogure
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Terao N, Akiyama M, Kumagai K, Takahashi G, Yoshioka I, Suzuki T, Suzuki Y, Maeda K, Saiki Y. Flow Rate in Pressure-Controlled, Selective Hypothermic Intercostal Artery Perfusion and Temperature Changes in Cerebrospinal Fluid during Thoracoabdominal Aortic Aneurysm Repair. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705387] [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: 10/24/2022]
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3
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Takahashi G, Kobayashi H, Saito Y, Ohsawa S, Suzuki K, Ishihara S, Hisada T. Bacteriologically Determined De Novo Tuberculosis during Tumor Necrosis Factor-α Inhibitor Therapy. Intern Med 2019; 58:3593-3596. [PMID: 31434822 PMCID: PMC6949445 DOI: 10.2169/internalmedicine.3054-19] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
A 58-year-old man with Crohn's disease received adalimumab for 13 months after screening results for tuberculosis were found to be negative. He was diagnosed with de novo mediastinal lymph-node tuberculosis, which was proved to be bacteriologically identical to that of an individual with smear positive lung tuberculosis by a variable number of tandem repeat analyses. After initiating anti-tuberculosis therapy, the patient developed immune reconstitution syndrome, which was improved by the re-administration of adalimumab. Even in countries with an intermediate tuberculosis burden, including Japan, we need to be alert for de novo tuberculosis as well as its reactivation during tumor necrosis factor-α inhibitor therapy.
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Affiliation(s)
- Gen Takahashi
- Department of Internal Medicine, Isesaki Municipal Hospital, Japan
| | | | - Yasuyuki Saito
- Department of Internal Medicine, Isesaki Municipal Hospital, Japan
| | - Sho Ohsawa
- Department of Internal Medicine, Isesaki Municipal Hospital, Japan
| | - Kuniaki Suzuki
- Department of Internal Medicine, Isesaki Municipal Hospital, Japan
| | | | - Takeshi Hisada
- Department of Respiratory Medicine, Gunma University Graduate School of Medicine, Japan
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Mullane KM, Morrison VA, Camacho LH, Arvin A, McNeil SA, Durrand J, Campbell B, Su SC, Chan ISF, Parrino J, Kaplan SS, Popmihajlov Z, Annunziato PW, Cerana S, Dictar MO, Bonvehi P, Tregnaghi JP, Fein L, Ashley D, Singh M, Hayes T, Playford G, Morrissey O, Thaler J, Kuehr T, Greil R, Pecherstorfer M, Duck L, Van Eygen K, Aoun M, De Prijck B, Franke FA, Barrios CHE, Mendes AVA, Serrano SV, Garcia RF, Moore F, Camargo JFC, Pires LA, Alves RS, Radinov A, Oreshkov K, Minchev V, Hubenova AI, Koynova T, Ivanov I, Rabotilova B, Minchev V, Petrov PA, Chilingirov P, Karanikolov S, Raynov J, Grimard D, McNeil S, Kumar D, Larratt LM, Weiss K, Delage R, Diaz-Mitoma FJ, Cano PO, Couture F, Carvajal P, Yepes A, Torres Ulloa R, Fardella P, Caglevic C, Rojas C, Orellana E, Gonzalez P, Acevedo A, Galvez KM, Gonzalez ME, Franco S, Restrepo JG, Rojas CA, Bonilla C, Florez LE, Ospina AV, Manneh R, Zorica R, Vrdoljak DV, Samarzija M, Petruzelka L, Vydra J, Mayer J, Cibula D, Prausova J, Paulson G, Ontaneda M, Palk K, Vahlberg A, Rooneem R, Galtier F, Postil D, Lucht F, Laine F, Launay O, Laurichesse H, Duval X, Cornely OA, Camerer B, Panse J, Zaiss M, Derigs HG, Menzel H, Verbeek M, Georgoulias V, Mavroudis D, Anagnostopoulos A, Terpos E, Cortes D, Umanzor J, Bejarano S, Galeano RW, Wong RSM, Hui P, Pedrazzoli P, Ruggeri L, Aversa F, Bosi A, Gentile G, Rambaldi A, Contu A, Marei L, Abbadi A, Hayajneh W, Kattan J, Farhat F, Chahine G, Rutkauskiene J, Marfil Rivera LJ, Lopez Chuken YA, Franco Villarreal H, Lopez Hernandez J, Blacklock H, Lopez RI, Alvarez R, Gomez AM, Quintana TS, Moreno Larrea MDC, Zorrilla SJ, Alarcon E, Samanez FCA, Caguioa PB, Tiangco BJ, Mora EM, Betancourt-Garcia RD, Hallman-Navarro D, Feliciano-Lopez LJ, Velez-Cortes HA, Cabanillas F, Ganea DE, Ciuleanu TE, Ghizdavescu DG, Miron L, Cebotaru CL, Cainap CI, Anghel R, Dvorkin MV, Gladkov OA, Fadeeva NV, Kuzmin AA, Lipatov ON, Zbarskaya II, Akhmetzyanov FS, Litvinov IV, Afanasyev BV, Cherenkova M, Lioznov D, Lisukov IA, Smirnova YA, Kolomietz S, Halawani H, Goh YT, Drgona L, Chudej J, Matejkova M, Reckova M, Rapoport BL, Szpak WM, Malan DR, Jonas N, Jung CW, Lee DG, Yoon SS, Lopez Jimenez J, Duran Martinez I, Rodriguez Moreno JF, Solano Vercet C, de la Camara R, Batlle Massana M, Yeh SP, Chen CY, Chou HH, Tsai CM, Chiu CH, Siritanaratkul N, Norasetthada L, Sriuranpong V, Seetalarom K, Akan H, Dane F, Ozcan MA, Ozsan GH, Kalayoglu Besisik SF, Cagatay A, Yalcin S, Peniket A, Mullan SR, Dakhil KM, Sivarajan K, Suh JJG, Sehgal A, Marquez F, Gomez EG, Mullane MR, Skinner WL, Behrens RJ, Trevarthe DR, Mazurczak MA, Lambiase EA, Vidal CA, Anac SY, Rodrigues GA, Baltz B, Boccia R, Wertheim MS, Holladay CS, Zenk D, Fusselman W, Wade III JL, Jaslowsk AJ, Keegan J, Robinson MO, Go RS, Farnen J, Amin B, Jurgens D, Risi GF, Beatty PG, Naqvi T, Parshad S, Hansen VL, Ahmed M, Steen PD, Badarinath S, Dekker A, Scouros MA, Young DE, Graydon Harker W, Kendall SD, Citron ML, Chedid S, Posada JG, Gupta MK, Rafiyath S, Buechler-Price J, Sreenivasappa S, Chay CH, Burke JM, Young SE, Mahmood A, Kugler JW, Gerstner G, Fuloria J, Belman ND, Geller R, Nieva J, Whittenberger BP, Wong BMY, Cescon TP, Abesada-Terk G, Guarino MJ, Zweibach A, Ibrahim EN, Takahashi G, Garrison MA, Mowat RB, Choi BS, Oliff IA, Singh J, Guter KA, Ayrons K, Rowland KM, Noga SJ, Rao SB, Columbie A, Nualart MT, Cecchi GR, Campos LT, Mohebtash M, Flores MR, Rothstein-Rubin R, O'Connor BM, Soori G, Knapp M, Miranda FG, Goodgame BW, Kassem M, Belani R, Sharma S, Ortiz T, Sonneborn HL, Markowitz AB, Wilbur D, Meiri E, Koo VS, Jhangiani HS, Wong L, Sanani S, Lawrence SJ, Jones CM, Murray C, Papageorgiou C, Gurtler JS, Ascensao JL, Seetalarom K, Venigalla ML, D'Andrea M, De Las Casas C, Haile DJ, Qazi FU, Santander JL, Thomas MR, Rao VP, Craig M, Garg RJ, Robles R, Lyons RM, Stegemoller RK, Goel S, Garg S, Lowry P, Lynch C, Lash B, Repka T, Baker J, Goueli BS, Campbell TC, Van Echo DA, Lee YJ, Reyes EA, Senecal FM, Donnelly G, Byeff P, Weiss R, Reid T, Roeland E, Goel A, Prow DM, Brandt DS, Kaplan HG, Payne JE, Boeckh MG, Rosen PJ, Mena RR, Khan R, Betts RF, Sharp SA, Morrison VA, Fitz-Patrick D, Congdon J, Erickson N, Abbasi R, Henderson S, Mehdi A, Wos EJ, Rehmus E, Beltzer L, Tamayo RA, Mahmood T, Reboli AC, Moore A, Brown JM, Cruz J, Quick DP, Potz JL, Kotz KW, Hutchins M, Chowhan NM, Devabhaktuni YD, Braly P, Berenguer RA, Shambaugh SC, O'Rourke TJ, Conkright WA, Winkler CF, Addo FEK, Duic JP, High KP, Kutner ME, Collins R, Carrizosa DR, Perry DJ, Kailath E, Rosen N, Sotolongo R, Shoham S, Chen T. Safety and efficacy of inactivated varicella zoster virus vaccine in immunocompromised patients with malignancies: a two-arm, randomised, double-blind, phase 3 trial. The Lancet Infectious Diseases 2019; 19:1001-1012. [DOI: 10.1016/s1473-3099(19)30310-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 12/25/2022]
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Shiba T, Inaoka DK, Takahashi G, Tsuge C, Kido Y, Young L, Ueda S, Balogun EO, Nara T, Honma T, Tanaka A, Inoue M, Saimoto H, Harada S, Moore AL, Kita K. Insights into the ubiquinol/dioxygen binding and proton relay pathways of the alternative oxidase. Biochim Biophys Acta Bioenerg 2019; 1860:375-382. [PMID: 30910528 DOI: 10.1016/j.bbabio.2019.03.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/20/2019] [Indexed: 12/21/2022]
Abstract
The alternative oxidase (AOX) is a monotopic diiron carboxylate protein which catalyzes the four-electron reduction of dioxygen to water by ubiquinol. Although we have recently determined the crystal structure of Trypanosoma brucei AOX (TAO) in the presence and absence of ascofuranone (AF) derivatives (which are potent mixed type inhibitors) the mechanism by which ubiquinol and dioxygen binds to TAO remain inconclusive. In this article, ferulenol was identified as the first competitive inhibitor of AOX which has been used to probe the binding of ubiquinol. Surface plasmon resonance reveals that AF is a quasi-irreversible inhibitor of TAO whilst ferulenol binding is completely reversible. The structure of the TAO-ferulenol complex, determined at 2.7 Å, provided insights into ubiquinol binding and has also identified a potential dioxygen molecule bound in a side-on conformation to the diiron center for the first time.
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Affiliation(s)
- Tomoo Shiba
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan.
| | - Daniel Ken Inaoka
- School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto 1-12-4, Nagasaki 852-8523, Japan; Department of Host-Defense Biochemistry, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Sakamoto 1-12-4, Nagasaki 852-8523, Japan; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Hongo 7-3-1, Tokyo 113-0033, Japan.
| | - Gen Takahashi
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Chiaki Tsuge
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Hongo 7-3-1, Tokyo 113-0033, Japan
| | - Yasutoshi Kido
- School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto 1-12-4, Nagasaki 852-8523, Japan; Department of Parasitology, Graduate School of Medicine, Osaka City University, Abeno-ku, Asahimachi 1-4-3, Osaka 545-8585, Japan
| | - Luke Young
- Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK
| | - Satoshi Ueda
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Emmanuel Oluwadare Balogun
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Hongo 7-3-1, Tokyo 113-0033, Japan; Department of Biochemistry, Ahmadu Bello University, Zaria 2222, Nigeria
| | - Takeshi Nara
- Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Bunkyo-ku, Hongo 2-1-1, Tokyo, 113-8421, Japan
| | - Teruki Honma
- Systems and Structural Biology Center, RIKEN, Tsurumi, Suehiro 1-7-22, Yokohama, Kanagawa 230-0045, Japan
| | - Akiko Tanaka
- Systems and Structural Biology Center, RIKEN, Tsurumi, Suehiro 1-7-22, Yokohama, Kanagawa 230-0045, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Hongo 7-3-1, Tokyo 113-0033, Japan
| | - Hiroyuki Saimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyamacho-Minami 4, Tottori 680-8552, Japan
| | - Shigeharu Harada
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Anthony L Moore
- Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK
| | - Kiyoshi Kita
- School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto 1-12-4, Nagasaki 852-8523, Japan; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Hongo 7-3-1, Tokyo 113-0033, Japan; Department of Host-Defense Biochemistry, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Sakamoto 1-12-4, Nagasaki 852-8523, Japan
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Hara K, Yamada T, Koizumi M, Shinji S, Yokoyama Y, Takahashi G, Hotta M, Iwai T, Takeda K, Yoshida H. Adjuvant chemotherapy for colorectal cancer using oxaliplatin induced irreversible sinusoidal obstruction syndrome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamada T, Takahashi G, Iwai T, Takeda K, Furuki H, Koizumi M, Shinji S, Matsuda A, Yokoyama Y, Hotta M, Hara K, Yoshida H. Emergence of KRAS mutation may play a major role in the secondary resistance to EGFR blockade. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Iwai T, Yamada T, Takahashi G, Matsumoto S, Koizumi M, Shinji S, Matsuda A, Yokoyama Y, Hara K, Takeda K, Nakayama M, Kitano S, Ohta K, Uchida E. Circulating cell-free DNA can predict relapse after resection of metastatic liver tumors from colorectal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yamada T, Takahashi G, Iwai T, Takeda K, Koizumi M, Shinji S, Yokoyama Y, Hara K, Hotta M, Matsuda A, Matsumoto S, Ohta K, Uchida E. Tracking emerging KRAS and BRAF mutations through ccfDNA in colorectal cancers treated with EGFR blockade. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Takahashi G, Yamada T, Kan H, Matsumoto S, Koizumi M, Shinji S, Matsuda A, Yokoyama Y, Iwai T, Masuda Y, Watanabe A, Uchida E. 153P Novel, highly sensitive molecular biomarkers for metastatic colorectal cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sawada G, Moon J, Saito A, Odagiri K, Kimura Y, Takahashi G, Yamashita S, Inoue M, Irei T, Nakahira S, Shimizu Y, Tominaga H, Kuraoka K, Taniyama K, Hatanaka N. A case of adenoid cystic carcinoma of the esophagus. Surg Case Rep 2015; 1:119. [PMID: 26943443 PMCID: PMC4662665 DOI: 10.1186/s40792-015-0122-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/24/2015] [Indexed: 12/26/2022] Open
Abstract
Esophageal adenoid cystic carcinoma (EACC) is a very rare form of malignant tumor in the esophagus. Here, we report the case of a 78-year-old man who was diagnosed with EACC by preoperative endoscopic biopsy. Thoracoscopy-assisted subtotal esophagectomy with lymph node dissection was carried out. Microscopic examination of the resected specimen suggested that the tumor invaded to submucosal layer and showed no lymph node metastasis. Histologically, tumor primarily exhibited an alveolar solid pattern with partial cribriform and tubular patterns. Alcian blue staining showed many mucoid materials within the glandular cavity formed by tumor cells. Immunohistochemical studies revealed that the tumor cells reacted with pan-cytokeratin immunostains and expressed vimentin and S-100 protein. Collectively, the tumor was diagnosed as primary EACC, T1bN0M0 according to “Japanese Classification of Esophageal Cancer 10th edition.” The patient showed no recurrence sign 12 months after the surgery. The current study also reviewed 35 EACC cases reported in Japanese literatures from 1990 to 2014. Combined with our case, we found that EACC is less frequently accompanied by lymph node metastasis as compared to esophageal squamous cell carcinoma, especially at the early stage. The prognosis of EACC is relatively better when tumors have no lymph node metastasis.
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Affiliation(s)
- Genta Sawada
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Jeongho Moon
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Akihisa Saito
- Department of Diagnostic Pathology, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, Kure, Japan.
| | - Kazuki Odagiri
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Yuri Kimura
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Gen Takahashi
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Shinya Yamashita
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Masashi Inoue
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Toshimitu Irei
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Shin Nakahira
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Yosuke Shimizu
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Harumi Tominaga
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
| | - Kazuya Kuraoka
- Department of Diagnostic Pathology, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, Kure, Japan.
| | - Kiyomi Taniyama
- National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, Kure, Japan.
| | - Nobutaka Hatanaka
- Department of Surgery, National Hospital Organization, Kure Medical Center, Chugoku Cancer Center, 3-1, Aoyamacho, Kure, 737-0023, Japan.
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Shimizu Y, Tominaga H, Yamashita S, Kimura Y, Odagiri K, Kurokawa T, Yamaguchi M, Takahashi G, Sawada G, Inoue M, Jeongho M, Irei T, Nakahira S, Hatanaka N. [Usefulness of Metallic Stent for Left-Sided Obstructive Colon Cancer]. Gan To Kagaku Ryoho 2015; 42:2236-2238. [PMID: 26805322] [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: 06/05/2023]
Abstract
The aim of this study was to compare the efficacy of self-expandable metallic stent (SEMS) and transanal tube as preoperative treatments for left-sided obstructive colon cancer. Forty-three patients (the SEMS group: 28 cases, the tube group: 15 cases) were included in this study. Clinicopathological data (age, sex, tumor location, depth, histological type, stage) were comparable between the 2 groups. In addition, there was no difference in intestinal decompression rate between the SEMS group and the tube group (technical success rate: 100% vs 86.7%, clinical success rate: 92.8% vs 73.3%, complication rate: 7.1% vs 0%). A significantly higher number of patients in the SEMS group underwent laparoscopic surgery because of difference of historical background. However, no significant difference was observed between the 2 groups in postoperative outcome(complication rate, hospital stay duration). SEMS insertion had several benefits compared to transanal tube placement, such as the resumption of oral intake because of rapid resolution of obstruction and easier management because SEMSs do not require washing. SEMS insertion could be a safe and effective bridge to subsequent surgery in patients with left-sided obstructive colon cancer.
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Affiliation(s)
- Yosuke Shimizu
- Dept. of Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center
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Yamashita S, Shimizu Y, Tominaga H, Kimura Y, Odagiri K, Kurokawa T, Yamaguchi M, Takahashi G, Sawada G, Moon J, Inoue M, Irei T, Nakahira S, Hatanaka N. [A Case of Small Bowel Cancer Treated with Laparoscopic Surgery]. Gan To Kagaku Ryoho 2015; 42:1712-1714. [PMID: 26805147] [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: 06/05/2023]
Abstract
We report a case of small intestinal adenocarcinoma treated with laparoscopic surgery. A 70-year-old woman had abdominal pain and epigastralgia. There were no abnormal findings on upper and lower endoscopy. The symptoms continued for 4 months after endoscopy, so she presented to our hospital. After CT examination, small bowel cancer with ileus was suspected. An ileus tube was inserted to relieve the bowel pressure and she was diagnosed with ileum cancer by enteroscopy. Laparoscopic surgery was performed and the pathological stage was determined as pStage Ⅲa. She was treated with oral chemotherapy (UFT plus LV) and had no recurrence 6 months after surgery.
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Affiliation(s)
- Shinya Yamashita
- Dept. of Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center
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14
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Yamashita S, Shimizu Y, Tominaga H, Kimura Y, Odagiri K, Kurokawa T, Yamaguchi M, Takahashi G, Sawada G, Moon J, Inoue M, Irei T, Nakahira S, Hatanaka N. [A Case of Radical Resection of Rectal Cancer with Multiple Liver and Lung Metastases after Preoperative Chemotherapy]. Gan To Kagaku Ryoho 2015; 42:1274-1276. [PMID: 26489570] [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: 06/05/2023]
Abstract
We report a case of radical resection of rectal cancer with multiple liver and lung metastases after preoperative chemotherapy. A 54-year-old woman presented with abdominal pain and loss of body weight due to rectal cancer with multiple liver and lung metastases. Therefore, the patient received 14 courses of bevacizumab+mFOLFOX6, and 7 courses of panitumumab+FOLFIRI. After the chemotherapy, the size of the distant metastases reduced by 62% on computed tomography, according to RECIST. Due to the reduction in size, a conversion surgery was attempted. First, an abdominal operation with laparoscopy was performed, and 2 months later an operation to resect the lung metastases via thoracoscopy was performed. Currently, 3 months after surgery, the patient is alive, without recurrence.
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Affiliation(s)
- Shinya Yamashita
- Dept. of Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center
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15
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Shimizu Y, Yamashita S, Tominaga H, Kimura Y, Odagiri K, Kurokawa T, Yamaguchi M, Takahashi G, Sawada G, Jeongho M, Inoue M, Irei T, Nakahira S, Hatanaka N. [A Case of Locally Advanced Rectal Cancer Successfully Treated by Conversion Surgery after Multidisciplinary Treatment]. Gan To Kagaku Ryoho 2015; 42:1292-1294. [PMID: 26489576] [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: 06/05/2023]
Abstract
A 70-year-old woman who complained of abdominal pain and a prolapsed tumor from the anus was diagnosed with an intestinal obstruction resulting from anal canal cancer. Computed tomography (CT) and magnetic resonance imaging revealed a huge tumor (11×5×12 cm) invading the vagina and levator ani muscle. Enlarged inguinal lymph nodes on both sides indicated metastasis. The clinical stage was T4b (vagina, levator ani muscle, and pudenda) N0H0M1a (LYM), stage IV (Japanese Classification of Colorectal Carcinoma: 8th edition). As curative resection was not possible, a transvers colostomy was performed to relieve the intestinal obstruction. This was followed by chemoradiotherapy (45 Gy/1.8 Gy×25; TS-1, 80 mg/body for 2 weeks and a 1-week interval, for 2 courses) and up to 10 courses of Bev+mFOLFOX6 continuously. After this regimen, there was a remarkable reduction in tumor size. Positron emission tomography-CT revealed no FDG uptake in the primary rectal site or inguinal lymph nodes, but a maximum standardized uptake value (SUVmax) of 6.3 was detected in the vagina. Six weeks after chemotherapy, the patient underwent a pelvic exenteration including resection of the vagina, bladder, and pudenda. The pathological stage was yp T4b (vagina) N0H0M0, stageⅡ. Curative resection was performed, and the patient had a Grade 2 pathological response after chemoradiotherapy.
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Affiliation(s)
- Yosuke Shimizu
- Dept. of Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center
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16
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Takahashi G, Yamada T, Kan H, Matsumoto S, Koizumi M, Shinji S, Matsuda A, Yokoyama Y, Iwai T, Watanabe A, Nakayama M, Kitano S, Uchida E. 2028 Self-expandable colonic stent increases plasma level of circulating cell free DNA significantly in patients with obstructive colorectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30951-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Iwai T, Yamada T, Kan H, Matumoto S, Koizumi M, Shinji S, Matuda A, Yokoyama Y, Takahashi G, Watanabe A, Nakayama M, Shiro K, Uchida E. 434 Follow-up after resection of metastatic liver tumor from colorectal cancer using circulating cell-free DNA. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30268-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Takahashi G, Kuroda S, Tashiro H, Kobayashi T, Ishiyama K, Ide K, Tahara H, Ohira M, Arihiro K, Ohdan H. A case of biliary cystic tumor with repeated hemobilia. Surg Case Rep 2015; 1:34. [PMID: 26943402 PMCID: PMC4747920 DOI: 10.1186/s40792-014-0006-0] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 11/30/2014] [Indexed: 01/18/2023] Open
Abstract
Intraductal papillary neoplasm of the bile duct (IPNB) is classified as a biliary cystic tumor with a tendency of causing obstruction. Neoplastic cases involving hemobilia are rarely reported. We herein describe a case of biliary cystic tumor with repeated hemobilia. A 57-year-old woman was histologically diagnosed with cavernous hemangioma. During the follow-up period after transcatheter arterial embolization (TAE), she experienced repeated hemobilia, and multiple other TAE sessions were performed for hemostasis. She was referred to our hospital 8 years after the first surgery owing to a growing tumor. Histopathological examination after extended right hepatectomy and caudate lobectomy indicated IPNB with an associated invasive carcinoma. Six months thereafter, computed tomography revealed a recurrent liver tumor and a nodule in the abdominal cavity. She died 36 months after the second surgery, despite chemotherapy. Our experience suggests that IPNB should be considered during differential diagnosis of dilated hepatobiliary tumors with hemobilia.
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Affiliation(s)
- Gen Takahashi
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Shintaro Kuroda
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Hirotaka Tashiro
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Tsuyoshi Kobayashi
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Kohei Ishiyama
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Kentaro Ide
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Hiroyuki Tahara
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Masahiro Ohira
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Koji Arihiro
- Department of Anatomical Pathology, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Hiroshima University Hospital, 1-2-3, Kasumi, Hiroshima, 734-8551, Japan.
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Takahashi G, Maeda M, Kimura Y, Funahashi H. 16 BIOCHEMICAL ANALYSIS OF COMPONENT IN SEMINAL GEL SECRETED WITH BOAR SEMEN. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Seminal gel (SG), a part of semen, of the boar originates from secretions from the Cowper's gland and has a high viscosity and water-holding capacity, preventing backflow of semen at natural mating. However, there are is little information available about biochemical and functional characteristics of boar SG. In this study, as a first step to elucidate the chemical features of the SG, we examined the structure of O-glycans and the primary structure of protein from the boar SG. Seminal gel was collected from ejaculated semen of a Berkshire boar with high fertility and freeze-dried. Samples were preserved in a refrigerator until experiments were conducted. For Exp. 1 the presence of O-glycans in SG was confirmed by detection of the amino sugar, galactosamine (GalNH2), from acid hydrolysis of GalNAc. The freeze-dried SG (1 mg) was hydrolyzed with 4N trifluoroacetic acid at 110°C for 2 h. The resulting amino sugar was labelled with phenyl isothiocyanate (PITC) and then analysed by RP-HPLC. The GalNAc was detected as a main amino sugar, suggesting that the SG contains O-glycosylated glycoprotein. For Exp. 2 the O-glycans were prepared from the freeze-dried SG (5 mg) by hydrazinolysis at 100°C for 2 h. After N-acetylation, the O-glycans were pyridylaminated. The structures were identified by anion-exchange HPLC, size-fractionation HPLC, glycosidase digestion, and ESI-MS and MS/MS analysis. Almost all glycans were digested by α2–3,6-sialidasae, indicating that these O-glycans are sialylated and give the glycoproteins viscosity. Furthermore, the MS analysis showed that the de-sialylated O-glycans consist of HexNAc-PA (m/z 300.0) and Hex-HexNAc-PA (m/z 462.0) and major glycans are di- or tri-saccharides. For Exp. 3 proteins in the SG were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis under reducing condition with 5% 2-mercaptoethanol. Proteins were stained with Coomassie Brilliant Blue R-250. Three bands (~160, 140, and 70 kDa) were found on 7.5% polyacrylamide gel, but two bands (160, 140 kDa) were converted to ~130 kDa after the sialidase digestion, indicating that native two proteins (160 and 140 kDa) may be highly sialylated. For Exp. 4 internal amino acid sequence was analysed using one of the peptic peptides. The freeze-dried SG (5 mg) was digested with porcine pepsin in 5% formic acid at 37°C for 3 h. The resulting peptides were separated by RP-HPLC. N-terminal sequence of one of the peptic peptides was WSEKYGIPGGKAH. The amino acid sequence showed a high homology with tyrosine-protein kinase ZAP-70. These results suggest that boar SG contains mucin-like glycoproteins carrying heavily sialylated O-glycans. Additionally, the current study suggests a possibility that some protein components of the boar SG derive from high concentration of the kinase in (dead) sperms.
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20
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Miura Y, Tomizawa Y, Kuwako T, Tomizawa M, Takahashi G, Yoshii A, Saito R, Yamada M. [A case of clinically diagnosed eosinophilic bronchiolitis]. Arerugi 2014; 63:1265-1270. [PMID: 25492882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 08/27/2014] [Indexed: 06/04/2023]
Abstract
A 71-year-old man was referred to our hospital because of an intractable productive cough. Although he was treated for bronchial asthma, the symptom did not improve. Furthermore, since he developed progressive dyspnea and hypoxemia, he was admitted to our hospital. Marked eosinophilia in a blood test and sputum, poorly defined centrilobular nodules throughout the bilateral lung fields in a chest CT scan, and mixed ventilatory impairment in a spirometric test were revealed. Thoracoscopic lung biopsy and bronchoalveolar lavage were not conducted because of progressive respiratory failure. Therefore, we clinically diagnosed eosinophilic bronchiolitis, and immediately administered oral prednisolone (30 mg daily). His symptoms and examination findings rapidly improved. This case suggests that eosinophilic bronchiolitis should be taken into consideration for differential diagnoses of eosinophilic lung disease and obstructive lung disease, and marked eosinophilia in sputum may be one of the useful tools for diagnosis of this disease when invasive examinations are inadequate.
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Affiliation(s)
- Yosuke Miura
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital; Gunma University Graduate School of Medicine, Department of Medicine and Molecular Science, Allergy and Respiratory Medicine
| | - Yoshio Tomizawa
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Tomohito Kuwako
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Mai Tomizawa
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Gen Takahashi
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Akihiro Yoshii
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Ryusei Saito
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital
| | - Masanobu Yamada
- Gunma University Graduate School of Medicine, Department of Medicine and Molecular Science, Allergy and Respiratory Medicine
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21
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Sunaga N, Kaira K, Tomizawa Y, Shimizu K, Imai H, Takahashi G, Kakegawa S, Ohtaki Y, Nagashima T, Kasahara N, Kawashima O, Hisada T, Saito R, Yamada M. Clinicopathological and prognostic significance of interleukin-8 expression and its relationship to KRAS mutation in lung adenocarcinoma. Br J Cancer 2014; 110:2047-53. [PMID: 24577055 PMCID: PMC3992490 DOI: 10.1038/bjc.2014.110] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/06/2014] [Accepted: 02/04/2014] [Indexed: 01/10/2023] Open
Abstract
Background: On the basis of our recent findings of oncogenic KRAS-induced interleukin-8 (IL-8) overexpression in non-small cell lung cancer, we assessed the clinicopathological and prognostic significances of IL-8 expression and its relationship to KRAS mutations in lung adenocarcinomas. Methods: IL-8 expression was examined by quantitative RT–PCR using 136 of surgical specimens from lung adenocarcinoma patients. The association between IL-8 expression, clinicopathological features, KRAS or EGFR mutation status and survival was analysed. Results: IL-8 was highly expressed in tumours from elderly patients or smokers and in tumours with pleural involvement or vascular invasion. In a non-smokers' subgroup, IL-8 level positively correlated with age. IL-8 was highly expressed in tumours with KRAS mutations compared with those with EGFR mutations or wild-type EGFR/KRAS. Lung adenocarcinoma patients with high IL-8 showed significantly shorter disease-free survival (DFS) and overall survival (OS) than those with low IL8. DFS and OS were significantly shorter in the patients with mutant KRAS/high IL-8 than in those with wild-type KRAS/low IL-8. Cox regression analyses demonstrated that elevated IL-8 expression correlated with unfavourable prognosis. Conclusions: Our findings suggest that IL-8 expression is associated with certain clinicopathological features including age and is a potent prognostic marker in lung adenocarcinoma, especially in oncogenic KRAS-driven adenocarcinoma.
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Affiliation(s)
- N Sunaga
- 1] Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan [2] Oncology Center, Gunma University Hospital, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - K Kaira
- 1] Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan [2] Department of Oncology Clinical Development, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Y Tomizawa
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital, 2854 Kanai, Shibukawa, Gunma 377-8511, Japan
| | - K Shimizu
- Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - H Imai
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan
| | - G Takahashi
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital, 2854 Kanai, Shibukawa, Gunma 377-8511, Japan
| | - S Kakegawa
- Department of Thoracic Surgery, National Hospital Organization Nishigunma Hospital, 2854 Kanai, Shibukawa, Gunma 377-8511, Japan
| | - Y Ohtaki
- Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - T Nagashima
- Department of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - N Kasahara
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan
| | - O Kawashima
- Department of Thoracic Surgery, National Hospital Organization Nishigunma Hospital, 2854 Kanai, Shibukawa, Gunma 377-8511, Japan
| | - T Hisada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan
| | - R Saito
- Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital, 2854 Kanai, Shibukawa, Gunma 377-8511, Japan
| | - M Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma371-8511, Japan
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22
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Hosokawa S, Mizuta K, Takahashi G, Okamura J, Takizawa Y, Hosokawa K, Yamatodani T, Mineta H. Carcinoma of the external auditory canal: histological and treatment groups. B-ENT 2014; 10:259-264. [PMID: 25654948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
OBJECTIVE Evaluation of the clinical and pathological factors associated with the treatment and outcomes of external auditory canal (EAC) carcinomas. METHODOLOGY A retrospective review of clinical and pathological analysis was performed on 23 patients who were histologically diagnosed with EAC carcinomas and treated at Hamamatsu University hospital. We evaluated the clinical staging, treatment methods, pathological diagnosis (particularly squamous cell carcinoma, SCC), and patient outcomes. Main outcome measures include staging, treatment procedures, pathological features, and estimated survival rates. RESULTS The 5-year overall survival (OS) of study participants was 75.2% and the 10-year OS was 60.2% using the Kaplan-Meier method. The prognosis for SCC was poor compared with other carcinomas (p= 0.0462). The prognoses for SCC patients after treatment with surgery alone and after postoperative radiotherapy or chemoradiotherapy were significantly better than for patients with unresectable tumours (p = 0.0004 and p = 0.0001, respectively). There was no significant difference among the four tumour stage groups. Information about patients' survival status was obtained after a median follow-up period of 57.5 months (range, 7-151 months). CONCLUSION Our survival analysis data for carcinoma of the EAC demonstrates that SCC and unresectable cases are associated with poor outcomes. Outcomes for patients with operable disease more closely parallel the survival curves of patients with advanced stage T4 disease. Patients with SCC should be strictly categorized as cases with severe disease.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Carcinoma, Adenoid Cystic/pathology
- Carcinoma, Adenoid Cystic/therapy
- Carcinoma, Basal Cell/pathology
- Carcinoma, Basal Cell/therapy
- Carcinoma, Squamous Cell/pathology
- Carcinoma, Squamous Cell/therapy
- Carcinoma, Verrucous/pathology
- Carcinoma, Verrucous/therapy
- Chemoradiotherapy, Adjuvant
- Cohort Studies
- Disease-Free Survival
- Ear Canal/pathology
- Ear Neoplasms/pathology
- Ear Neoplasms/therapy
- Female
- Humans
- Male
- Middle Aged
- Neoplasm Staging
- Prognosis
- Radiotherapy, Adjuvant
- Retrospective Studies
- Skin Neoplasms/pathology
- Skin Neoplasms/therapy
- Treatment Outcome
- Young Adult
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Meshii N, Takahashi G, Okunaga S, Hamada M, Iwai S, Takasu A, Ogawa Y, Yura Y. Enhancement of systemic tumor immunity for squamous cell carcinoma cells by an oncolytic herpes simplex virus. Cancer Gene Ther 2013; 20:493-8. [PMID: 23887644 DOI: 10.1038/cgt.2013.45] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 06/07/2013] [Accepted: 06/15/2013] [Indexed: 01/13/2023]
Abstract
RH2 is a neurovirulent γ134.5 gene-deficient herpes simplex virus type 1 (HSV-1) with a lytic ability in human squamous cell carcinoma (SCC) cells; it is related to spontaneously occurring HSV-1 mutant HF10. The effect of RH2 on SCC was examined using a syngeneic C3H mouse model. After infection of mouse SCCVII cells with RH2, cell viability was decreased at first, but recovered by prolonged culture, indicating the limited replication of RH2. The antitumor ability of RH2 was examined using a bilateral SCCVII tumor model. The growth of the RH2-injected tumors was suppressed compared with that of phosphate-buffered saline-injected tumors. Moreover, the growth of contralateral tumor of RH2-treated mice was also suppressed significantly. The splenocytes of C3H mice treated with RH2 lysed more SCCVII cells than NFSaY83 cells and YAC-1 cells. The cytotoxicity of the splenocytes on SCCVII cells was significantly greater than that of splenocytes from tumor-bearing mice. Removal of CD8(+) T cells from splenocytes decreased their cell killing activity remarkably. The antitumor effect of RH2 on SCCVII xenografts in nude mice was not demonstrated. These results indicate that RH2 exhibited a suppressive effect on mouse SCC, even if the replication of RH2 was limited. This is ascribed to the ability of RH2 to enhance existing tumor-specific cytotoxic T lymphocyte activity.
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Affiliation(s)
- N Meshii
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka, Japan
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Matsuo S, Takahashi G, Konishi A, Sai S. Management of refractory chylothorax after pediatric cardiovascular surgery. Pediatr Cardiol 2013; 34:1094-9. [PMID: 23229292 DOI: 10.1007/s00246-012-0607-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [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] [Received: 09/12/2012] [Accepted: 11/29/2012] [Indexed: 01/30/2023]
Abstract
We investigated the optimal treatment for refractory chylothorax after pediatric cardiovascular surgery. We retrospectively reviewed the cases of 15 consecutive patients who developed chylothorax after congenital heart surgery performed between December 2004 and November 2010. Among the 15 patients (12 male and 3 female; median age 13.9 months) who developed postoperative chylothorax, 10 recovered with conservative therapy, such as a low-fat diet, medium chain triglyceride-enriched diet, or total parenteral nutrition. Of the remaining 5 patients who underwent surgical treatment followed by conventional therapy, 4 showed improvement, and 1 died from cardiac failure. Surgical treatment was performed at a median of 19 days after diagnosis of chylothorax. Average drainage output of thoracocentesis for the first 5 days before thoracic duct ligation was 33.1 ml/kg/day. Duration of chylous fluid drainage was significantly longer in surgical patients than in patients who recovered with conservative therapy (p < 0.01). Surgical patients tended to be younger with lower body weight. Significant risk factors for surgical intervention were age <4 months, body weight <4 kg, and duration of drainage >10 days. In cases of refractory postoperative chylothorax, surgical therapy such as thoracic duct ligation should be considered when discharge from the drainage tube is >30 ml/kg/day or chylothorax is not improved within 10 days.
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Affiliation(s)
- S Matsuo
- Department of Cardiovascular Surgery, Miyagi Children's Hospital, 4-3-17 Ochiai, Aoba-ku, Sendai 989-3126, Japan.
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Tsuji S, Ohshima S, Yura A, Katayama M, Watanabe A, Teshigawara S, Yoshimura M, Tanaka E, Harada Y, Katada Y, Matsushita M, Taura A, Kitatoube A, Takahashi G, Endo S, Hashimoto J, Saeki Y. THU0442 Serum Prepsepsin (Soluble CD14-Subtype) as a Novel Useful Biomaker for Infection in Patients with Rheumatoid Arthritis (RA). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sato M, Suzuki Y, Masuda T, Takahashi G, Kojika M, Inoue Y, Endo S. Relationship between serum nitrite/nitrate levels in the early phase of septic acute lung injury and prognosis. Crit Care 2013. [PMCID: PMC3642767 DOI: 10.1186/cc11976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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27
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Sato R, Suzuki Y, Sato M, Takahashi G, Kojika M, Inoue Y, Endo S. Serum levels of presepsin reffects the APACHE II and SOFA scores in patients with sepsis. Crit Care 2013. [PMCID: PMC3642790 DOI: 10.1186/cc11975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Shiba T, Kido Y, Sakamoto K, Inaoka DK, Tsuge C, Tatsumi R, Takahashi G, Balogun EO, Nara T, Aoki T, Honma T, Tanaka A, Inoue M, Matsuoka S, Saimoto H, Moore AL, Harada S, Kita K. Structure of the trypanosome cyanide-insensitive alternative oxidase. Proc Natl Acad Sci U S A 2013; 110:4580-5. [PMID: 23487766 PMCID: PMC3607012 DOI: 10.1073/pnas.1218386110] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In addition to haem copper oxidases, all higher plants, some algae, yeasts, molds, metazoans, and pathogenic microorganisms such as Trypanosoma brucei contain an additional terminal oxidase, the cyanide-insensitive alternative oxidase (AOX). AOX is a diiron carboxylate protein that catalyzes the four-electron reduction of dioxygen to water by ubiquinol. In T. brucei, a parasite that causes human African sleeping sickness, AOX plays a critical role in the survival of the parasite in its bloodstream form. Because AOX is absent from mammals, this protein represents a unique and promising therapeutic target. Despite its bioenergetic and medical importance, however, structural features of any AOX are yet to be elucidated. Here we report crystal structures of the trypanosomal alternative oxidase in the absence and presence of ascofuranone derivatives. All structures reveal that the oxidase is a homodimer with the nonhaem diiron carboxylate active site buried within a four-helix bundle. Unusually, the active site is ligated solely by four glutamate residues in its oxidized inhibitor-free state; however, inhibitor binding induces the ligation of a histidine residue. A highly conserved Tyr220 is within 4 Å of the active site and is critical for catalytic activity. All structures also reveal that there are two hydrophobic cavities per monomer. Both inhibitors bind to one cavity within 4 Å and 5 Å of the active site and Tyr220, respectively. A second cavity interacts with the inhibitor-binding cavity at the diiron center. We suggest that both cavities bind ubiquinol and along with Tyr220 are required for the catalytic cycle for O2 reduction.
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Affiliation(s)
- Tomoo Shiba
- Department of Biomedical Chemistry, Graduate School of Medicine, and
| | - Yasutoshi Kido
- Department of Biomedical Chemistry, Graduate School of Medicine, and
| | | | - Daniel Ken Inaoka
- Department of Biomedical Chemistry, Graduate School of Medicine, and
| | - Chiaki Tsuge
- Department of Biomedical Chemistry, Graduate School of Medicine, and
| | - Ryoko Tatsumi
- Department of Biomedical Chemistry, Graduate School of Medicine, and
| | - Gen Takahashi
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan
| | - Emmanuel Oluwadare Balogun
- Department of Biomedical Chemistry, Graduate School of Medicine, and
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan
- Department of Biochemistry, Ahmadu Bello University, Zaria 2222, Nigeria
| | - Takeshi Nara
- Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Takashi Aoki
- Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Teruki Honma
- Systems and Structural Biology Center, RIKEN, Tsurumi, Yokohama 230-0045, Japan;
| | - Akiko Tanaka
- Systems and Structural Biology Center, RIKEN, Tsurumi, Yokohama 230-0045, Japan;
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Shigeru Matsuoka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hiroyuki Saimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan; and
| | - Anthony L. Moore
- Biochemistry and Molecular Biology, School of Life Sciences, University of Sussex, Brighton BN1 9QG, United Kingdom
| | - Shigeharu Harada
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan
| | - Kiyoshi Kita
- Department of Biomedical Chemistry, Graduate School of Medicine, and
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Abstract
RH2 is a novel oncolytic herpes simplex virus type 1 (HSV-1) produced by simultaneous infection with neurovirulent γ134.5 gene-deficient HSV-1 R849 derived from strain F and the spontaneously occurring, fusogenic HSV-1 HF in cell culture. The genome of RH2 was studied using Genome Sequencer FLX. RH2 comprised 149 64 bp and it was shown that the lacZ gene was inserted into the γ134.5 gene of R849. Comparison of ORFs revealed that RH2 had 100 % identity with strain F in 21/58 unique long (UL) genes (36.2%) and 1/13 unique short (US) genes (7.7%). RH2 had 100% amino acid identity with HF10 in 24/58 UL genes (41.4%) and 9/13 US genes (69.2%). Twelve genes, including UL27 (gB), US4 (gG) and UL6 (gD), had amino acid changes unique to RH2. Amino acid changes in gB occurred at positions 459 (T→A) and 817 (L→P). Other unique features were the amino acids missing in UL36 (VP1/2) and UL46 (VP11/12). Thus, RH2 is an HF10-based vector preserving the fusogenic amino acid changes of gB but lacking the γ134.5 gene. RH2 is expected to be a version of HF10 useful for the treatment of brain tumours as well as oral squamous cell carcinoma. Spontaneously occurring HSV-1 mutants may also be useful clinically, as their genome sequences can easily be determined by this genome sequencing system.
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Affiliation(s)
- Gen Takahashi
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Noritoshi Meshii
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masakazu Hamada
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Soichi Iwai
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshiaki Yura
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
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Ishibe Y, Suzuki Y, Sato H, Takahashi G, Kojika M, Matsumoto N, Inoue Y, Endo S. High mobility group box 1 levels in septic disseminated intravascular coagulation patients undergoing Polymixin-B immobilized fiber-direct hemoperfusion. Crit Care 2012. [PMCID: PMC3363798 DOI: 10.1186/cc10987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Shintani M, Takahashi G, Hamada M, Okunaga S, Iwai S, Yura Y. Effect of ultrasound on herpes simplex virus infection in cell culture. Virol J 2011; 8:446. [PMID: 21939524 PMCID: PMC3189159 DOI: 10.1186/1743-422x-8-446] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 09/22/2011] [Indexed: 11/24/2022] Open
Abstract
Background Ultrasound has been shown to increase the efficiency of gene expression from retroviruses, adenoviruses and adeno-associated viruses. The effect of ultrasound to stimulate cell membrane permeabilization on infection with an oncolytic herpes simplex virus type 1 (HSV-1) was examined. Results Vero monkey kidney cells were infected with HSV-1 and exposed to 1 MHz ultrasound after an adsorption period. The number of plaques was significantly greater than that of the untreated control. A combination of ultrasound and microbubbles further increased the plaque number. Similar results were obtained using a different type of HSV-1 and oral squamous cell carcinoma (SCC) cells. The appropriate intensity, duty cycle and time of ultrasound to increase the plaque number were 0.5 W/cm2, 20% duty cycle and 10 sec, respectively. Ultrasound with microbubbles at an intensity of 2.0 W/cm2, at 50% duty cycle, or for 40 sec reduced cell viability. Conclusion These results indicate that ultrasound promotes the entry of oncolytic HSV-1 into cells. It may be useful to enhance the efficiency of HSV-1 infection in oncolytic virotherapy.
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Affiliation(s)
- Motoko Shintani
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
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Takahashi G, Hoshikawa K, Matsumoto N, Shozushima T, Onodera C, Kan S, Akitomi S, Kikkawa T, Tomisawa Y, Kojika M, Sato N, Inoue Y, Suzuki K, Wakabayashi G, Endo S. Changes in serum S100A12 and sRAGE associated with improvement of the PaO(2)/FiO(2) ratio following PMX-DHP therapy for postoperative septic shock. ACTA ACUST UNITED AC 2011; 47:135-40. [PMID: 21921634 DOI: 10.1159/000330448] [Citation(s) in RCA: 9] [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] [Received: 10/22/2010] [Accepted: 05/25/2011] [Indexed: 01/04/2023]
Abstract
BACKGROUND Endotoxin (Et) adsorption therapy with a column of polymyxin B-immobilized fibers (PMX) is effective in improving the partial pressure of arterial oxygen/fraction of inspired oxygen ratio (PaO(2)/FiO(2) ratio) and increasing mean arterial blood pressure (MAP) in sepsis. S100A12 and soluble receptor for advanced glycation end product (sRAGE) are useful as early markers of acute lung injury. PURPOSE To investigate the effect of improving the PaO(2)/FiO(2) ratio by PMX-direct hemoperfusion (PMX-DHP) on production of S100A12 and sRAGE. SUBJECTS AND METHODS Sepsis patients after surgery for perforation of the lower gastrointestinal tract were adopted as the subjects. We retrospectively reviewed the cases of 20 patients on mechanical ventilation and continuous administration of norepinephrine. We recorded PaO(2)/FiO(2) ratio, MAP, and norepinephrine doses. S100A12, sRAGE, and Et levels were measured before and after PMX-DHP. RESULTS The PaO(2)/FiO(2) ratio and MAP improved significantly after PMX-DHP (p < 0.05). S100A12 and Et decreased significantly after PMX-DHP (p < 0.05). No differences were observed in sRAGE. CONCLUSION S100A12 is useful as a marker that reflected improvement in the PaO(2)/FiO(2) ratio after PMX-DHP. We consider PMX-DHP to be useful as adjunctive therapy for sepsis that reduces the Et and corrects the pathology in the early stage.
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Affiliation(s)
- G Takahashi
- Department of Critical Care Medicine, Iwate Medical University, School of Medicine, Morioka, Japan
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Takaoka H, Takahashi G, Ogawa F, Imai T, Iwai S, Yura Y. A novel fusogenic herpes simplex virus for oncolytic virotherapy of squamous cell carcinoma. Virol J 2011; 8:294. [PMID: 21663640 PMCID: PMC3131258 DOI: 10.1186/1743-422x-8-294] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 06/10/2011] [Indexed: 01/09/2023] Open
Abstract
Background R849 is a neurovirulent γ134.5 gene-deficient form of herpes simplex virus type 1 (HSV-1) and has LacZ genes at the deleted sites of the γ134.5 gene. HF is a spontaneously occurring, fusogenic HSV-1 strain. The purpose of this work was to generate a virus that has the syncytial character of HF, while preserving the γ134.5 gene inactivation profile of R849 virus. Results Vero cells were infected with R849 and HF simultaneously and two viruses, RH1 and RH2, expressing the LacZ gene and inducing extensive cell fusion were selected. A polymerase chain reaction (PCR)-based analysis suggested that one copy of the γ134.5 gene is lost in RH1, whereas both copies are lost in RH2, and that the γ134.5 gene is replaced by a R849-derived DNA fragment with the LacZ gene. These viruses produced larger plaques and more progeny than the parental viruses. Infection with RH2 decreased the viability of oral squamous cell carcinoma (SCC) cells most strongly. When RH2 was injected into xenografts of oral SCC in nude mice, multinucleated cells were produced and the growth of the tumors was suppressed significantly. Conclusion These results indicate that novel oncolytic HSV-1 vectors can be produced with the genetic background of the oncolytic HSV-1 HF, and that RH2 is deficient in γ134.5 genes and shows extensive cytopathic effects in oral SCC cells. RH2 may be useful in oncolytic virotherapy for oral SCC.
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Affiliation(s)
- Hiroo Takaoka
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka University, Suita, Osaka, Japan
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Matsumoto N, Takahashi G, Kojika M, Ishibe Y, Tatsuyori S, Yasushi S, Inada SK, Endo S. Investigation into problems associated with the endotoxin activity assay. Crit Care 2011. [PMCID: PMC3239247 DOI: 10.1186/cc10373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Takahashi G, Sato N, Matsumoto N, Shozushima T, Hoshikawa K, Akitomi S, Kikkawa T, Onodera C, Kojika M, Inoue Y, Suzuki K, Wakabayashi G, Endo S. Preliminary study on glucose control with an artificial pancreas in postoperative sepsis patients. ACTA ACUST UNITED AC 2011; 47:32-8. [PMID: 21576972 DOI: 10.1159/000327971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 03/31/2011] [Indexed: 01/30/2023]
Abstract
BACKGROUND Glucose control is essential to avoid hypoglycemia in postoperative patients. AIM To conduct a preliminary examination to evaluate the feasibility of the use of an artificial pancreas for glucose control as well as the accuracy of assessment by the artificial pancreas of the insulin dose required. SUBJECTS AND METHODS Glucose control using an artificial pancreas was undertaken in 8 postoperative sepsis patients. The blood glucose level was set at 80-150 mg/dl. Blood glucose levels over time, insulin dose requirements, and occurrence of hypoglycemia (≤40 mg/dl) were recorded for each patient. The patients were divided into 2 groups based on the total insulin dose they received over the 7 days (HG, n = 4: consisting of patients who required a higher insulin dose; LG, n = 4: patients who required a lower insulin dose). The data of the 2 groups were analyzed retrospectively. RESULTS The blood glucose level before glucose control was 203.3 ± 9.9 mg/dl and could be controlled in all patients to within the target range. No hypoglycemia events were recorded for any of the patients. The insulin dose in the HG and LG groups was 21,824.8 ± 6,030.4 and 6,254.5 ± 3,402.3 mU/kg (p < 0.05). CONCLUSIONS Accurate glucose control could be achieved with the artificial pancreas.
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Affiliation(s)
- G Takahashi
- Department of Critical Care Medicine, Iwate Medical University, Morioka, Japan
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Shozushima T, Suzuki Y, Masuda T, Takahashi G, Endo S. Usefulness of presepsin (sCD14-ST) measurements as a marker for the diagnosis and severity of sepsis in systemic inflammatory response syndrome. Crit Care 2011. [PMCID: PMC3068343 DOI: 10.1186/cc9834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Takahashi G, Noriyuki T, Shimoda K, Furonaka O, Osaki N, Shioya S, Yonehara S, Miyata Y. [18F-fluorodeoxyglucose positron emission tomography (FDG-PET) negative poorly differentiated adenocarcinoma of lung with mediastinal lymph node metastases]. Kyobu Geka 2010; 63:1145-1150. [PMID: 21174665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A 58-year-old woman was referred to our hospital for further medical examination of bilateral lung nodules on the chest computed tomography. Standardized uptake valve (SUV) max of 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) were negative value at both lung nodules, but positive value (3.4) at a pretracheal lymph node. The size of the small lung nodule of the left lower lobe (S9) was unchanged, but the lung nodule of the right upper lobe (S1) was gradually enlarged. By the biopsy of the right lung nodule, the poorly differentiated adenocarcinoma was diagnosed pathologically. The right upper lobectomy with mediastinal lymph node dissection was performed. The metastasis was pathologically determined for FDG-PET positive lymph node. The most important reason for negative FDG-PET at primary lesion was considered that the expression of glucose transporter 1 (GLUT-1) was very few. FDG-PET has become a useful tool in the diagnosis of the pulmonary cancer, but we should understand its limitation and diagnose carefully.
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Affiliation(s)
- Gen Takahashi
- Department of General Thoracic Surgery, Onomichi General Hospital, Onomichi, Japan
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Yamanishi T, Chikamatsu K, Takahashi G, Endo S, Masuyama K. Immune Regulation by CD4+CD25+ regulatory T cells in Patients with Japanese Cedar Pollinosis. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kurushima M, Takahashi G, Suzuki T, Hashimoto S, Honma KI, Kachi T. Effects of intracranial surgery on pineal lipid droplets, on other structures, and on melatonin secretion. Anat Sci Int 2009; 84:17-26. [PMID: 19221863 DOI: 10.1007/s12565-008-0004-z] [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] [Received: 03/06/2008] [Accepted: 06/09/2008] [Indexed: 11/26/2022]
Abstract
Unique effects of sham-pinealectomy [intracranial surgery (IS)] which include reduced functional activity of the adrenal gland and suppressed circadian rhythms of the adrenal medulla, and which are reversed by pinealectomy, have been reported in rodents. To clarify the mechanisms, we investigated whether or what changes occur in pineal functional activity after IS. Sixty-six male rats of normal and IS groups were used at 50 days of age. The pineal gland was first examined by quantitative electron microscopy. The Sudan III-stained lipid droplet content of the pinealocytes and plasma melatonin level were then investigated using the same animals. In IS rats, the lipid droplet content of the pinealocytes decreased in both the dark and light phases 14 days after surgery. Mean volumetric ratio of nucleus, nucleolus, and mitochondria tended to increase in IS rats. The mean plasma concentration of melatonin showed apparent day-night changes, but no significant changes because of IS, 36 h and 14 days after surgery. But in the dark phase 14 days after surgery, plasma melatonin levels showed increased dispersion of values (P < 0.04). Thus, after IS the lipid content of pinealocytes showed changes not closely related to those of plasma melatonin level. From these and other results it is speculated that IS effects are dissimilar to usual stress responses, that day-night rhythms of functional activities of the pineal and adrenal medulla are differently controlled, and that pineal gland-dependent IS effects are most probably induced by changed sensitivity/states of target mechanisms to the pineal hormone melatonin.
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Affiliation(s)
- Michihiro Kurushima
- Department of Anatomical Science, Hirosaki University Graduate School of Medicine, Zaifucho 5, Hirosaki, Japan
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Kikkawa T, Suzuki Y, Makabe H, Shibata S, Takahashi G, Matsumoto N, Sato N, Endo S. Assessment of IL-18 values in septic acute lung injury/acute respiratory distress syndrome patients. Crit Care 2009. [PMCID: PMC4084254 DOI: 10.1186/cc7532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Shouzushima T, Suzuki Y, Takahashi G, Shibata S, Sato N, Endo S. Investigation of type II phospholipase A2 values and eicosanoid values during polymyxin-B-immobilized fiber direct hemoperfusion of septic shock patients. Crit Care 2009. [PMCID: PMC4084174 DOI: 10.1186/cc7452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tabayashi K, Motoyoshi N, Saiki Y, Kokubo H, Takahashi G, Masuda S, Shibuya T, Akasaka J, Oda K, Kamata M, Iguti A. Efficacy of perfusion cooling of the epidural space and cerebrospinal fluid drainage during repair of extent I and II thoracoabdominal aneurysm. J Cardiovasc Surg (Torino) 2008; 49:749-755. [PMID: 19043389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
AIM The aim of this study was to evaluate spinal cord injury and mortality resulting from repair of extent I and II thoracoabdominal aneurysm. The authors compared patients operated under mild hypothermia with or without epidural perfusion cooling (EPC) and cerebrospinal fluid drainage (CSFD). METHODS From 1988 to 2007, 116 patients underwent replacement of the thoracoabdominal aorta; the procedure was performed in 38 patients with the aid of mild hypothermia alone (group A), and in 78 patients with the aid of EPC, mild hypothermia and CSFD (group B). Two catheters for epidural perfusion cooling were inserted in group B, in which one catheter was inserted into the epidural space to infuse chilled saline, and the other was inserted into the subdural space to drain the cerebrospinal fluid and to measure temperature and pressure. There were no significant differences in mean age, etiology of aortic disease, and aneurysm extent between the two groups. RESULTS There were no significant differences in cardiopulmonary bypass time, the lowest nasopharyngeal temperature and operation time between the two study groups. The incidence of spinal cord injury in group A (16.2%) was significantly higher than in group B (3.8%, P=0.03). Hospital mortality in groups A and B was 10.5% and 2.6%, respectively (P=0.08). There was no significant difference in postoperative complications between the two study groups. CONCLUSION The combination of EPC and CSFD was effective in lowering the incidence of postoperative spinal cord injury in the repair of extent I and II thoracoabdominal aortic aneurysm.
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Affiliation(s)
- K Tabayashi
- Department of Cardiovascular Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan.
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Takahashi G, Takahashi H. Renal Blood Flow Velocity in Reflux Nephropathy. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1058359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Aoki Y, Takahashi G, Kitahara K. Comparison of Swedish interactive threshold algorithm and full threshold algorithm for glaucomatous visual field loss. Eur J Ophthalmol 2007; 17:196-202. [PMID: 17415692 DOI: 10.1177/112067210701700208] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [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: 11/17/2022]
Abstract
PURPOSE To compare the prevalence of visual field loss, the sensitivity distribution, and the size and depth of glaucomatous visual field defects using the standard full threshold (FT) and the Swedish interactive threshold algorithm (SITA) standard (SS) procedures in patients with early or suspected glaucoma. METHODS Automated perimetry findings were retrospectively evaluated in 53 patients (105 eyes) with early or suspected glaucoma. RESULTS The number of eyes judged to have glaucomatous visual field loss by SS (48 eyes) was significantly larger than what was found with FT (35 eyes), and 70 eyes were classified as pre-perimetric glaucoma. In these 70 eyes, there were many locations where the sensitivity was significantly higher with SS than with FT (intrasubject difference), and SS had less intersubject variability than FT at most locations. The cumulative decibel scores at the region of glaucomatous defects were larger with SS (206.2+/-103.3 dB) than with FT (162.1+/-87.5 dB) (p=0.02), which indicated that the depth of defects measured by SS was shallower than that by FT. The sizes of defects were significantly larger with SS (11.2+/-5.6) than with FT (9.7+/-5.1) (p<0.05). CONCLUSIONS Glaucomatous defects were measured as being significantly shallower and larger with SS than with FT. In addition, the prevalence of visual field defect was higher with SS according to some of the criteria for glaucomatous visual field defects. These results might be related to the fact that SS strategy has a lower variability and to the Bayesian statistical properties of the SITA algorithm.
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Affiliation(s)
- Y Aoki
- Department of Ophthalmology, Jikei University School of Medicine, 3-25-8 Nishi-shimbashi, Minato-ku, Tokyo 105-8461, Japan.
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Yokoyama S, Nakano H, Yamazaki T, Tamai K, Hanada K, Takahashi G. Enhancement of ultraviolet-induced apoptosis by NF-kappaB decoy oligonucleotides. Br J Dermatol 2006; 153 Suppl 2:47-51. [PMID: 16280021 DOI: 10.1111/j.1365-2133.2005.06969.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 11/28/2022]
Abstract
BACKGROUND A decoy strategy utilizing oligonucleotides (ODN) containing the specific binding sequence of a certain transcription factor has been developed and is considered to be a potential new class of antigene therapy. However, the application of this new therapeutic modality to skin diseases has not been fully documented. OBJECTIVES The aim of this work was to examine the effects of the nuclear factor (NF)-kappaB decoy ODN on UV-elicited skin change. METHODS Mouse keratinocyte Pam 212 cells were transfected with NF-kappaB decoy ODN to examine the effects of the decoy ODN on ultraviolet (UV) B-induced apoptosis. Tape-stripped rat dorsal skin was treated with an ointment containing NF-kappaB decoy ODN for the examination of the in vivo impact of the decoy ODN on sunburned cell (SBC) formation and UVB erythema. RESULTS NF-kappaB decoy ODN specifically induced apoptosis of Pam 212 cells and SBC formation was significantly enhanced by topical NF-kappaB decoy ODN ointment, while UV-induced erythema was not affected. CONCLUSIONS These data suggest that enhancement of UV-induced apoptosis by NF-kappaB decoy ODN may play a cancer-preventive role by further eliminating photodamaged keratinocytes.
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Affiliation(s)
- S Yokoyama
- Department of Dermatology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
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Satoh K, Takahashi G, Miura T, Hayakari M, Hatayama I. Enzymatic detection of precursor cell populations of preneoplastic foci positive for gamma-glutamyltranspeptidase in rat liver. Int J Cancer 2005; 115:711-6. [PMID: 15729699 DOI: 10.1002/ijc.20979] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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: 11/06/2022]
Abstract
An improved staining method for gamma-glutamyltranspeptidase (GGT) was developed using Vibratome-prepared microslices. Microscopic precursor cell populations of preneoplastic foci positive for the marker enzyme were detectable sequentially in rat liver by tracing back from 5 to 1 week after carcinogen injection in a hepatocarcinogenesis model. Mirror-image comparisons of serial sections stained for GGT activity and immunocytochemically stained for GST-P (glutathione S-transferase P-form) revealed that GGT expression was confined within GST-P(+) cell populations (GST-P(+) minifoci), which are induced in the periportal area (zone 1) of the liver. GGT expression level differed from one minifocus to another, and the larger the GST-P(+) focus, the stronger was the GGT expression in it, indicating that GST-P(+)/GGT(-) phenotypes are convertible into proliferating GST-P(+)/GGT(+) ones. Our results suggest that there are at least 2 closely related precursors, GST-P(+)/GGT(-) and GST-P(+)/GGT(+) phenotypes, of preneoplastic foci in rat chemical hepatocarcinogenesis.
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Affiliation(s)
- Kimihiko Satoh
- Department of Organic Function, Hirosaki University, School of Health Science, Hirosaki, Japan.
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Tabayashi K, Takahashi G, Motoyoshi N, Kokubo H, Sakurai M, Oda K, Saiki Y, Iguchi A. [Spinal cord protection during most or all of descending thoracic or thoracoabdominal aneurysm repair]. Kyobu Geka 2004; 57:301-6. [PMID: 15071864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVES The purpose of this study is to evaluate usefulness of perfusion cooling for regional spinal cord hypothermia during most or all of thoracic or thoracoabdominal aneurysm repair. METHODS From 1987 to 2003, 103 patients underwent most or all of thoracic or thoracoabdominal aneurysm repair. Forty-eight patients underwent operation using distal aortic perfusion, mild hypothermia and segment sequential repair (group MH). Fifty-five patients underwent the same operation as group MH except epidural perfusion cooling and drainage of cerebrospinal fluid (CSF) [group EC & CSFD]. The aorta was replaced sequentially in segment and several paris of intercostal and lumbar arteries were reconstructed in 2 groups. RESULTS Cardiopulmonary bypass time of group MH and group EC & CSFD was averaged 235 and 241 minutes, respectively. The lowest CSF temperature in group EC & CSFD was averaged 24.7 degrees C, and the difference between nasopharyngeal and CSF temperature was averaged 6.4 degrees C. The rate of spinal cord injury of group MH and EC & CSFD was 10.4% and 3.6%, respectively. Hospital mortality of group MH and EC & CSFD was 8.3% and 5.5%, respectively. The incidence of spinal cord injury and hospital mortality of group EC & CSFD were decreased compared to them of group MH. CONCLUSION We conclude that the perfusion cooling of epidural space and CSF drainage are effective method in reducing postoperative spinal cord injury.
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Affiliation(s)
- K Tabayashi
- Department of Cardiovascular Surgery, Tohoku University School of Medicine, Sendai, Japan
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Motoyoshi N, Takahashi G, Sakurai M, Tabayashi K. Safety and efficacy of epidural cooling for regional spinal cord hypothermia during thoracoabdominal aneurysm repair⋆. Eur J Cardiothorac Surg 2004; 25:139-41. [PMID: 14690749 DOI: 10.1016/s1010-7940(03)00677-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [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: 11/15/2022] Open
Abstract
Twenty-four consecutive patients underwent epidural cooling as an adjunct to elective thoracoabdominal aortic repair under moderate systemic hypothermia. One patient suffered from postoperative paraplegia (4%), and another died from subarachnoidal hemorrhage (4%). Details of the technique, the associated care, and the pitfalls will be discussed.
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Affiliation(s)
- N Motoyoshi
- Department of Cardiovascular Surgery, Tohoku University, 1-1 Seiryou-cho, Aoba-ward, Sendai 981-0824, Japan
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Johnson CA, Takahashi G, Demirel S. The ability of frequency doubling technology (FDT) perimetry to predict the onset of glaucomatous visual field loss for standard automated perimetry (SAP). J Vis 2002. [DOI: 10.1167/2.10.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Demirel S, Takahashi G, Johnson CA. A comparison of visual field indices for standard FDT and a spatially finer testing pattern. J Vis 2002. [DOI: 10.1167/2.10.96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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