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Naganuma M, Nakamura N, Kunisaki R, Matsuoka K, Yamamoto S, Kawamoto A, Saito D, Kobayashi T, Nanki K, Narimatsu K, Shiga H, Esaki M, Yoshioka S, Kato S, Saruta M, Tanaka S, Yasutomi E, Yokoyama K, Moriya K, Tsuzuki Y, Ooi M, Fujiya M, Nakazawa A, Takagi T, Omori T, Tahara T, Hisamatsu T. Medical treatment selection and outcomes for hospitalized patients with severe ulcerative colitis as defined by the Japanese criteria. J Gastroenterol 2024; 59:302-314. [PMID: 38277006 DOI: 10.1007/s00535-024-02079-x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND Hospitalization for ulcerative colitis (UC) is potentially life-threatening. Severe disease in the Japanese criteria which modifies the Truelove-Witts' criteria might encompass more fulminant cases than the definition for acute severe UC. However, few studies have investigated the predictive factors for clinical remission (CR) after medical treatments for severe hospitalized patients by Japanese criteria. METHODS Medical treatment selection, CR rates, and factors contributing to CR on day 14 were assessed in severe patients by Japanese criteria. We also investigated whether the reduction rate in patient-reported outcome 2 (PRO2) on day 3 could predict short-term prognosis. RESULTS Eighty-five severe hospitalized patients were selected. Corticosteroids, tacrolimus, and infliximab were mainly selected as first-line treatments (76/85; 89.4%). The CR rates on day 14 were 26.8%, 21.4%, and 33.3% in patients receiving corticosteroids, tacrolimus, and infliximab, respectively. Extensive disease (odds ratio [OR] 0.022; 95% confidence interval [CI] 0.002-0.198), higher PRO2 (OR 0.306; 95% CI 0.144-0.821), and higher reduction rate in PRO2 on day 3 (OR 1.047; 95% CI 1.019-1.075) were independent factors predicting CR on day 14. If the cutoff value for the reduction rate in PRO2 on day 3 was 18.3%, sensitivity was 0.714 and specificity was 0.731 to predict CR on day 14. A higher reduction rate in PRO2 on day 3 (OR 0.922; 95% CI 0.853-0.995) was a negative factor to predict surgery within 28 days. CONCLUSIONS Tacrolimus and infliximab in addition to corticosteroids were used as first-line treatment in severe hospitalized patients. PRO2 on day 3 is a useful marker for switching to second-line therapy or colectomy.
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Affiliation(s)
- Makoto Naganuma
- Division of Gastroenterology and Hepatology, Third Department of Internal Medicine, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.
| | - Naohiro Nakamura
- Division of Gastroenterology and Hepatology, Third Department of Internal Medicine, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Reiko Kunisaki
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Katsuyoshi Matsuoka
- Department of Gastroenterology, Department of Internal Medicine, Toho University Sakura Medical Center, Sakura, Japan
| | - Shojiro Yamamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Ami Kawamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Daisuke Saito
- Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Mitaka, Japan
| | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Kosaku Nanki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kazuyuki Narimatsu
- Department of Internal Medicine, National Defence Medical University, Tokorozawa, Japan
| | - Hisashi Shiga
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motohiro Esaki
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Shinichiro Yoshioka
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Shingo Kato
- Department of Gastroenterology and Hepatology, Saitama Medical Centre, Saitama Medical University, Saitama, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shinji Tanaka
- Endoscopy and Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Eriko Yasutomi
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kaoru Yokoyama
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Kei Moriya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, Japan
| | - Yoshikazu Tsuzuki
- Department of Gastroenterology, Saitama Medical University, Saitama, Japan
| | - Makoto Ooi
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Atsushi Nakazawa
- Department of Gastroenterology, Saiseikai General Hospital, Tokyo, Japan
| | - Tomohisa Takagi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Teppei Omori
- Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan
| | - Tadakazu Hisamatsu
- Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Mitaka, Japan
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Shinozaki S, Tahara T, Miura K, Lefor AK, Yamamoto H. Effectiveness of One-Year Pemafibrate Therapy on Non-Alcoholic Fatty Liver Disease Refractory to Long-Term Sodium Glucose Cotransporter-2 Inhibitor Therapy: A Pilot Study. Life (Basel) 2023; 13:1327. [PMID: 37374110 DOI: 10.3390/life13061327] [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: 04/12/2023] [Revised: 06/02/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
Background: Both pemafibrate and sodium glucose cotransporter-2 (SGLT2) inhibitor can decrease serum transaminase levels in patients with non-alcoholic fatty liver disease (NAFLD) complicated with dyslipidemia and type 2 diabetes mellitus (T2DM), respectively. However, the effectiveness of combined therapy has been rarely reported. Methods: This is a two-center retrospective observational study. NAFLD patients complicated with T2DM treated with pemafibrate for >1 year were included, in whom prior treatment with SGLT2 inhibitor > 1 year failed to normalize serum alanine aminotransferase (ALT) levels. Hepatic inflammation, function, and fibrosis were assessed by ALT, albumin-bilirubin (ALBI) score, and Mac-2 binding protein glycosylation isomer (M2BPGi) levels, respectively. Results: Seven patients were included. The median duration of prior treatment with SGLT2 inhibitors was 2.3 years. During the one year before starting pemafibrate therapy, the therapy did not significantly change hepatic enzymes. All patients received pemafibrate 0.1 mg twice daily without dose escalations. During one year of pemafibrate therapy, triglyceride, aspartate aminotransferase, ALT, γ-glutamyl transpeptidase, ALBI score, and M2BPGi levels significantly improved (p < 0.05), although weight or hemoglobin A1c did not significantly change. Conclusions: One year of pemafibrate therapy improves markers of hepatic inflammation, function, and fibrosis in NAFLD patients in whom long-term SGLT2 inhibitor therapy failed to normalize serum ALT.
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Affiliation(s)
- Satoshi Shinozaki
- Shinozaki Medical Clinic, Utsunomiya 321-3223, Japan
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi 329-0431, Japan
| | - Toshiyuki Tahara
- Saiseikai Utsunomiya Hospital, 911-1 Takebayashi, Utsunomiya 321-0974, Japan
| | - Kouichi Miura
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi 329-0431, Japan
| | - Alan Kawarai Lefor
- Department of Surgery, Jichi Medical University, Tochigi 329-0431, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi 329-0431, Japan
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Sakota D, Kosaka R, Nagaoka E, Ohuchi K, Tahara T, Arai H, Sakanoue I, McCurry K, Okamoto T. Left Ventricular Assist Device Mode: Co-Pulse Left Ventricular Unloading in Working Mode of Ex Vivo Heart Perfusion. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.229] [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: 11/25/2022] Open
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Nakazawa A, Fujioka S, Notsumata K, Shima T, Yangita K, Kawaguchi M, Tahara T, Oomoto M, Ishikawa T, Kawana I, Tsukada N, Funakoshi S, Itoh H, Nagano T, Horie Y, Tatemichi M, Yamamoto K, Okanoue T. Absence of differences in the recurrence rates of hepatitis C virus‑associated hepatocellular carcinoma between direct‑acting antivirals and interferon‑based treatments: A multicenter study. World Acad Sci J 2021; 3:27. [DOI: 10.3892/wasj.2021.98] [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] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Affiliation(s)
- Atsushi Nakazawa
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo 108‑0073, Japan
| | - Shinichi Fujioka
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama 700‑8511, Japan
| | - Kazuo Notsumata
- Department of Internal Medicine, Fukui‑ken Saiseikai Hospital, Fukui 918‑8503, Japan
| | - Toshihide Shima
- Department of Gastroenterology and Hepatology, Osaka Saiseikai Suita Hospital, Osaka 564‑0013, Japan
| | - Kimihiko Yangita
- Department of Internal Medicine, Saiseikai Karatsu Hospital, Karatsu, Saga 847‑0852, Japan
| | - Masanori Kawaguchi
- Department of Gastroenterology, Saiseikai Wakayama Hospital, Wakayama 640‑8158, Japan
| | - Toshiyuki Tahara
- Department of Internal Medicine, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 321‑0974, Japan
| | - Masaki Oomoto
- Department of Internal Medicine and Gastroenterology, Saiseikai Imabari Hospital, Imabari, Ehime 799‑1502, Japan
| | - Toru Ishikawa
- Department of Gastroenterology and Hepatology, Saiseikai Niigata Daini Hospital, Niigata 950‑1104, Japan
| | - Ichiro Kawana
- Department of Gastroenterology, Saiseikai Yokohamashi Nanbu Hospital, Yokohama, Kanagawa 234‑0054, Japan
| | - Nobuhiro Tsukada
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo 108‑0073, Japan
| | - Shinsuke Funakoshi
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo 108‑0073, Japan
| | - Hiroyuki Itoh
- Department of Internal Medicine, Saiseikai Kure Hospital, Kure, Hiroshima 737‑0821, Japan
| | - Tomoo Nagano
- Department of Internal Medicine, Kamisu Saisekai Hospital, Kamisu, Ibaraki 314‑0112, Japan
| | - Yutaka Horie
- Department of Gastroenterology, Shimaneken Saiseikai Gotsu General Hospital, Gotsu, Shimane 695‑0011, Japan
| | - Masayuki Tatemichi
- Department of Preventive Medicine, Tokai University School of Medicine, Isehara, Kanagawa, 259‑1193, Japan
| | - Kazuhide Yamamoto
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama 700‑8511, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Osaka Saiseikai Suita Hospital, Osaka 564‑0013, Japan
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Takaoka Y, Miura K, Morimoto N, Ikegami T, Kakizaki S, Sato K, Ueno T, Naganuma A, Kosone T, Arai H, Hatanaka T, Tahara T, Tano S, Ohtake T, Murohisa T, Namikawa M, Asano T, Kamoshida T, Horiuchi K, Nihei T, Soeda A, Kurata H, Fujieda T, Ohtake T, Fukaya Y, Iijima M, Watanabe S, Isoda N, Yamamoto H. Real-world efficacy and safety of 12-week sofosbuvir/velpatasvir treatment for patients with decompensated liver cirrhosis caused by hepatitis C virus infection. Hepatol Res 2021; 51:51-61. [PMID: 33272891 DOI: 10.1111/hepr.13576] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/30/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022]
Abstract
AIM This study aimed to evaluate the real-world efficacy and safety of 12-week sofosbuvir/velpatasvir (SOF/VEL) treatment for patients with decompensated liver cirrhosis caused by hepatitis C virus (HCV) infection. METHODS A total 72 of patients with Child-Pugh (CP) class B or C were enrolled. We evaluated the sustained virologic response at 12 weeks after the end of treatment (SVR12), adverse events (AEs), and changes in the liver function. RESULTS All participants had genotype 1 or 2 HCV infection. At baseline, the numbers of patients with CP class B and C were 59 and 13, respectively. The overall SVR12 rate was 95.8% (69/72); 94.9% (56/59) in CP class B and 100% (13/13) in CP class C. The serum albumin level, prothrombin time and ascites were significantly improved (P < 0.01); however, the serum bilirubin level and encephalopathy did not improve. Among patients who achieved SVR12, 75.0% showed an improvement in their CP score, while 5.9% showed a worsening. The presence of large portosystemic shunt (diameter ≥6 mm) and hyperbilirubinemia (≥2.0 mg/dL) were independent factors that interfered with the improvement in the CP score (P < 0.05). The most common AEs were encephalopathy (15.3%) and skin symptoms (7.9%). Two patients discontinued SOF/VEL due to AEs. CONCLUSIONS Treatment with SOF/VEL for 12 weeks was relatively safe and effective for patients with decompensated cirrhosis. An SVR provided an improvement of the liver function in the majority of patients. However, large portosystemic shunt and hyperbilirubinemia were independent factors that interfered with the improvement in the CP score.
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Affiliation(s)
- Yoshinari Takaoka
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan.,Department of Gastroenterology, Koga Red Cross Hospital, Koga, Japan
| | - Kouichi Miura
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
| | - Naoki Morimoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
| | - Tadashi Ikegami
- Department of Gastroenterology, Ibaraki Medical Center, Tokyo Medical University, Ami, Japan
| | - Satoru Kakizaki
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ken Sato
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi, Japan.,Department of Hepatology, Heisei Hidaka Clinic, Takasaki, Japan
| | - Takashi Ueno
- Department of Internal Medicine, Isesaki Municipal Hospital, Isesaki, Japan
| | - Atsushi Naganuma
- Department of Gastroenterology, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - Takashi Kosone
- Department of Gastroenterology and Hepatology, Kusunoki Hospital, Fujioka, Japan
| | - Hirotaka Arai
- Department of Gastroenterology, Maebashi Red Cross Hospital, Maebashi, Japan
| | - Takeshi Hatanaka
- Department of Gastroenterology, Gunma Saiseikai Maebashi Hospital, Maebashi, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan
| | - Shigeo Tano
- Department of Gastroenterology, Shin-Oyama City Hospital, Oyama, Japan
| | - Takaaki Ohtake
- Department of Gastroenterology, International University of Health and Welfare Hospital, Nasushiobara, Japan
| | - Toshimitsu Murohisa
- Department of Gastroenterology, Ashikaga Red Cross Hospital, Ashikaga, Japan
| | - Masashi Namikawa
- Department of Internal Medicine, Kiryu Kosei General Hospital, Kiryu, Japan
| | - Takeharu Asano
- Department of Gastroenterology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Toshiro Kamoshida
- Department of Gastroenterology, Hitachi General Hospital, Hitachi, Japan
| | - Katsuhiko Horiuchi
- Department of Gastroenterology, Gunma Chuo Hospital, Japan Community Health care Organization, Maebashi, Japan
| | - Takeshi Nihei
- Department of Gastroenterology, Mito Saiseikai General Hospital, Mito, Japan
| | - Atsuko Soeda
- Department of Gastroenterology, Tsukuba Memorial Hospital, Tsukuba, Japan
| | - Hidekazu Kurata
- Department of Gastroenterology, Tochigi Medical Center Shimotsuga, Tochigi, Japan
| | - Takeshi Fujieda
- Department of Internal Medicine, Kitaibaraki City Hospital, Kitaibaraki, Japan
| | - Toshiya Ohtake
- Department of Gastroenterology, Josai Hospital, Yuki, Japan
| | - Yukimura Fukaya
- Department of Internal Medicine, Nasu Minami Hospital, Nasukarasuyama, Japan
| | - Makoto Iijima
- Department of Gastroenterology, Dokkyo Medical University, Mibu, Japan
| | - Shunji Watanabe
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
| | - Norio Isoda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
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Watanabe S, Morimoto N, Miura K, Murohisa T, Tahara T, Sato T, Tano S, Fukaya Y, Kurata H, Okamura Y, Numao N, Uehara K, Murayama K, Nakazawa K, Sugaya H, Yoshizumi H, Iijima M, Tsukui M, Hirosawa T, Takaoka Y, Nomoto H, Maeda H, Goka R, Isoda N, Yamamoto H. Efficacy and safety of glecaprevir and pibrentasvir combination therapy in old-aged patients with chronic hepatitis C virus infection. J Rural Med 2020; 15:139-145. [PMID: 33033533 PMCID: PMC7530586 DOI: 10.2185/jrm.2020-004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/28/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022] Open
Abstract
Objective: Combination therapy with glecaprevir and pibrentasvir (G/P) has
been shown to provide a sustained virologic response (SVR) rate of >97% in patients
with chronic hepatitis C virus (HCV) infection in the first published real-world Japanese
data. However, a recently published study showed that the treatment was often discontinued
in patients ≥75 years old, resulting in low SVR in intention-to-treat (ITT) analysis.
Thus, our aim was to evaluate real-world data for G/P therapy in patients ≥75 years of
age, the population density of which is high in “rural” regions. Patients and Methods: We conducted a multicenter study to assess the
efficacy and safety of G/P therapy for chronic HCV infection, in the North Kanto area in
Japan. Results: Of the 308 patients enrolled, 294 (95.5%) completed the treatment
according to the protocol. In ITT and per-protocol analyses, the overall SVR12 rate was
97.1% and 99.7%, respectively. The old-aged patients group consisted of 59 participants,
56 of whom (94.9%) completed the scheduled protocol. Although old-aged patients tended to
have non-SVR factors such as liver cirrhosis, history of HCC, and prior DAA therapies, the
SVR12 rates in old-aged patients were 98.3% and 100% in the ITT and PP analyses,
respectively. Of 308 patients enrolled, adverse events were observed in 74 patients
(24.0%), with grade ≥3 events in 8 patients (2.6%). There was no significant difference in
any grade and grade ≥3 adverse events between the old-aged group and the rest of the study
participants. Only one patient discontinued the treatment because of adverse events. Conclusion: G/P therapy is effective and safe for old-aged patients.
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Affiliation(s)
- Shunji Watanabe
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Naoki Morimoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Kouichi Miura
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | | | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Japan
| | - Takashi Sato
- Department of Gastroenterology, Nasu Red Cross Hospital, Japan
| | - Shigeo Tano
- Department of Gastroenterology, Shin-Oyama City Hospital, Japan
| | - Yukimura Fukaya
- Department of Internal Medicine, Nasu Minami Hospital, Japan
| | - Hidekazu Kurata
- Department of Gastroenterology, Tochigi Medical Center Shimotsuga, Japan
| | | | - Norikatsu Numao
- Department of Gastroenterology, Haga Red Cross Hospital, Japan
| | - Keita Uehara
- Department of Gastroenterology, Tochigi Medical Center, Japan
| | - Kozue Murayama
- Department of Gastroenterology, Koga Red Cross Hospital, Japan
| | | | - Hitoshi Sugaya
- Department of Internal Medicine, Utsunomiya Higashi Hospital, Japan.,Department of Gastroenterology, Ashikaga Red Cross Hospital, Japan
| | | | - Makoto Iijima
- Department of Gastroenterology, Dokkyo Medical University, Japan.,Department of Gastroenterology, Yuai Memorial Hospital, Japan
| | - Mamiko Tsukui
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Takuya Hirosawa
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Yoshinari Takaoka
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Hiroaki Nomoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Hiroshi Maeda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Rie Goka
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Norio Isoda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Japan
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Watanabe Y, Numakura C, Tahara T, Fukui K, Torimura T, Hiromatsu Y, Tomotsune K, Yamakawa M, Hayasaka K. Diabetes mellitus exacerbates citrin deficiency via glucose toxicity. Diabetes Res Clin Pract 2020; 164:108159. [PMID: 32335094 DOI: 10.1016/j.diabres.2020.108159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/11/2020] [Accepted: 04/17/2020] [Indexed: 11/15/2022]
Abstract
AIMS Citrin is an aspartate/glutamate carrier that composes the malate-aspartate reduced nicotinamide adenine dinucleotide (NADH) shuttle in the liver. Citrin deficiency causes neonatal intrahepatic cholestasis (NICCD), failure to thrive and dyslipidemia (FTTDCD) and adult-onset type II citrullinemia (CTLN2). Hepatic glycolysis is essentially impaired in citrin deficiency and a low-carbohydrate diet was recommended. The lethal effect of infusion of glycerol- and fructose-containing osmotic agents was reported in these patients. Hyperalimentation was also reported to exacerbate CTLN2; however, glucose toxicity was unclear in citrin deficiency. METHODS We studied two CTLN2 patients complicated with type 2 diabetes mellitus (DM), Case 1 presented with hyperammonemic encephalopathy accompanied with DM, while Case 2 presented with hyperammonemic encephalopathy relapse upon the onset of DM after several years' remission following supplementation with medium-chain triglycerides (MCT) and adherence to a low-carbohydrate diet. RESULTS Insulin therapy with MCT supplementation and a low-carbohydrate diet improved hyperammonemia and liver function in Case 1. Additional insulin therapy improved hyperammonemia in Case 2. CONCLUSION Glucose is not toxic for citrin deficiency in normoglycemia because glucose uptake and metabolism by hepatocytes are limited in normoglycemia. However, glucose becomes toxic during persistent hyperglycemia and antidiabetic therapy is indispensable for CTLN2 patients with DM.
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Affiliation(s)
- Yoriko Watanabe
- Research Institute of Medical Mass Spectrometry, Kurume University School of Medicine, Kurume, Japan; Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Kaori Fukui
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Takuji Torimura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yuji Hiromatsu
- Division of Endocrinology and Metabolism, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Ken Tomotsune
- Department of Endocrinology and Metabolism, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Mitsunori Yamakawa
- Department of Pathological Diagnostics, Yamagata University School of Medicine, Yamagata, Japan
| | - Kiyoshi Hayasaka
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan; Department of Pediatrics, Miyukikai Hospital, Kaminoyama, Japan.
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8
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Takaoka Y, Miura K, Morimoto N, Kakizaki S, Ikegami T, Ueno T, Arai H, Hatanaka T, Tahara T, Murohisa T, Namikawa M, Naganuma A, Ohtake T, Horiuchi K, Asano T, Kamoshida T, Tano S, Fukaya Y, Kosone T, Watanabe S, Tsukui M, Hirosawa T, Nomoto H, Goka R, Maeda H, Sato N, Isoda N, Yamamoto H. Efficacy and safety of 12-week sofosbuvir/velpatasvir treatment of patients with decompensated liver cirrhosis caused by hepatitis C virus infection. Acta hepatologica Japonica 2020; 61:276-278. [DOI: 10.2957/kanzo.61.276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Affiliation(s)
- Yoshinari Takaoka
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Kouichi Miura
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Naoki Morimoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Satoru Kakizaki
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine
| | - Tadashi Ikegami
- Department of Gastroenterology, Ibaraki Medical Center, Tokyo Medical University
| | - Takashi Ueno
- Department of Internal Medicine, Isesaki Municipal Hospital
| | - Hirotaka Arai
- Department of Gastroenterology, Maebashi Red Cross Hospital
| | - Takeshi Hatanaka
- Department of Gastroenterology, Gunma Saiseikai Maebashi Hospital
| | | | | | | | - Atsushi Naganuma
- Department of Gastroenterology, Takasaki General Medical Center, National Hospital Organization
| | - Takaaki Ohtake
- Department of Gastroenterology, International University of Health and Welfare Hospital
| | - Katsuhiko Horiuchi
- Department of Gastroenterology, Gunma Chuo Hospital, Japan Community Health care Organization
| | - Takeharu Asano
- Department of Gastroenterology, Saitama Medical Center, Jichi Medical University
| | | | - Shigeo Tano
- Department of Gastroenterology, Shin-Oyama City Hospital
| | | | - Takashi Kosone
- Department of Gastroenterology and Hepatology, Kusunoki Hospital
| | - Shunji Watanabe
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Mamiko Tsukui
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Takuya Hirosawa
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Hiroaki Nomoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Rie Goka
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Hiroshi Maeda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Naoto Sato
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Norio Isoda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University
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9
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Shinozaki S, Tahara T, Lefor AK, Ogura M. Long-term empagliflozin therapy improves levels of hepatic fibrosis marker in patients with non-alcoholic fatty liver disease complicated by type 2 diabetes mellitus. J Med Invest 2020; 67:280-284. [PMID: 33148902 DOI: 10.2152/jmi.67.280] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 11/14/2022]
Abstract
The long-term outcomes of patients with non-alcoholic fatty liver disease (NAFLD) treated with sodium-glucose cotransporter-2 inhibitors remain indeterminate. Empagliflozin improves hyperglycemia by increasing glucose excretion in the urine, and it reduces fat volume and insulin resistance. The aim of this study is to assess the effect of long-term empagliflozin therapy on hepatic inflammation, function and fibrosis in patients with NAFLD. This is a two-center retrospective observational study including patients with NAFLD complicated by type 2 diabetes mellitus. We retrospectively reviewed the medical records. Changes in parameters were investigated over one-year empagliflozin treatment. Twenty-four patients treated with empagliflozin were evaluated. Weight, body mass index, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transpeptidase, fasting plasma glucose, hemoglobin A1c, serum insulin and homeostasis model assessment insulin resistance significantly decreased during treatment (p < 0.05). Albumin-bilirubin (ALBI) score, a marker of hepatic function, was significantly improved (p < 0.01). The FIB-4 index and Mac-2 Binding Protein Glucosylation Isomer, markers of hepatic fibrosis, significantly improved (p < 0.01). One-year empagliflozin treatment of patients with NAFLD complicated by type 2 diabetes mellitus significantly improves markers of hepatic inflammation, function and fibrosis. J. Med. Invest. 67 : 280-284, August, 2020.
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Affiliation(s)
- Satoshi Shinozaki
- Shinozaki Medical Clinic, Tochigi, Japan.,Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | | | | | - Masahito Ogura
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Kobayashi K, Nakachi I, Mitsuishi A, Arai D, Sakurai K, Masaki K, Chiyotani A, Takahashi H, Tahara T, Soejima K. Successful Retreatment Using Pembrolizumab for Non-small-cell Lung Cancer After Severe Immune-related Hepatitis: A Case Report. Clin Lung Cancer 2019; 21:e30-e32. [PMID: 31699508 DOI: 10.1016/j.cllc.2019.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/05/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Keigo Kobayashi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ichiro Nakachi
- Pulmonary Division, Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan.
| | - Akifumi Mitsuishi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Daisuke Arai
- Pulmonary Division, Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Kaori Sakurai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Katsunori Masaki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Atsushi Chiyotani
- Pulmonary Division, Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Hidenori Takahashi
- Pulmonary Division, Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Toshiyuki Tahara
- Gastroenterology and Hepatology Division, Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Kenzo Soejima
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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11
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Hirosawa T, Morimoto N, Miura K, Tahara T, Murohisa T, Okamura Y, Sato T, Numao N, Imai M, Tano S, Murayama K, Kurata H, Ozawa I, Fukaya Y, Yoshizumi H, Watanabe S, Tsukui M, Takaoka Y, Nomoto H, Isoda N, Yamamoto H. No Regional Disparities in Sofosbuvir Plus Ribavirin Therapy for HCV Genotype 2 Infection in Tochigi Prefecture and Its Vicinity. Intern Med 2019; 58:477-485. [PMID: 30333396 PMCID: PMC6421161 DOI: 10.2169/internalmedicine.1194-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/13/2023] Open
Abstract
Objective Regional disparities were observed in the outcomes of interferon (IFN)-based therapy for chronic hepatitis C virus (HCV) infection in a Japanese nationwide study. However, whether or not these regional disparities are observed in the outcomes of direct-acting antiviral drugs, including sofosbuvir (SOF) plus ribavirin (RBV) therapy, remains unclear. Methods We conducted a multicenter study to assess the efficacy of SOF plus RBV therapy for HCV genotype 2 infection in Tochigi Prefecture and its vicinity, in which IFN-based therapy yielded a low sustained virologic response (SVR) rate. In addition, we divided Tochigi Prefecture into six regions to examine regional disparities in the SVR. Patients We enrolled patients with chronic HCV genotype 2 infection. Results Of the 583 patients enrolled, 569 (97.6%) completed the treatment, and 566 (97.1%) also complied with post-treatment follow-up for 12 weeks. The overall SVR12 rate was 96.1% by per protocol and 93.7% by intention-to-treat analyses. No marked differences were observed in the SVR12 between subjects ≥65 and <65 years of age. Although large gaps were observed in the characteristics of patients and accessibility to medical resources, there was no significant difference in the SVR12 rate among the six regions in Tochigi Prefecture. Conclusion SOF plus RBV therapy was effective for HCV genotype 2 infection in an area where IFN-based therapy had previously shown unsatisfactory results. In addition, no regional disparities in the SVR12 were observed in Tochigi Prefecture.
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Affiliation(s)
- Takuya Hirosawa
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Naoki Morimoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Kouichi Miura
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Japan
| | | | | | - Takashi Sato
- Department of Gastroenterology, Nasu Red Cross Hospital, Japan
| | - Norikatsu Numao
- Department of Gastroenterology, Haga Red Cross Hospital, Japan
| | - Masato Imai
- Department of Gastroenterological Surgery, Utsunomiya Memorial Hospital, Japan
| | - Shigeo Tano
- Department of Gastroenterology, Shin-Oyama City Hospital, Japan
| | - Kozue Murayama
- Department of Gastroenterology, Koga Red Cross Hospital, Japan
| | - Hidekazu Kurata
- Department of Gastroenterology, Tochigi Medical Center Shimotsuga, Japan
| | - Iwao Ozawa
- Department of Hepatobiliary Surgery, Tochigi Cancer Center, Japan
| | - Yukimura Fukaya
- Department of Internal Medicine, Nasu Minami Hospital, Japan
| | | | - Shunji Watanabe
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Mamiko Tsukui
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Yoshinari Takaoka
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Hiroaki Nomoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Norio Isoda
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
| | - Hironori Yamamoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Japan
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12
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Hayasaka K, Numakura C, Yamakawa M, Mitsui T, Watanabe H, Haga H, Yazaki M, Ohira H, Ochiai Y, Tahara T, Nakahara T, Yamashiki N, Nakayama T, Kon T, Mitsubuchi H, Yoshida H. Medium-chain triglycerides supplement therapy with a low-carbohydrate formula can supply energy and enhance ammonia detoxification in the hepatocytes of patients with adult-onset type II citrullinemia. J Inherit Metab Dis 2018; 41:777-784. [PMID: 29651749 DOI: 10.1007/s10545-018-0176-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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] [Received: 11/03/2017] [Revised: 03/19/2018] [Accepted: 03/21/2018] [Indexed: 10/17/2022]
Abstract
Citrin, encoded by SLC25A13, constitutes the malate-aspartate shuttle, the main NADH-shuttle in the liver. Citrin deficiency causes neonatal intrahepatic cholestasis (NICCD) and adult-onset type II citrullinemia (CTLN2). Citrin deficiency is predicted to impair hepatic glycolysis and de novo lipogenesis, resulting in hepatic energy deficit. Secondary decrease in hepatic argininosuccinate synthetase (ASS1) expression has been considered a cause of hyperammonemia in CTLN2. We previously reported that medium-chain triglyceride (MCT) supplement therapy with a low-carbohydrate formula was effective in CTLN2 to prevent a relapse of hyperammonemic encephalopathy. We present the therapy for six CTLN2 patients. All the patients' general condition steadily improved and five patients with hyperammonemic encephalopathy recovered from unconsciousness in a few days. Before the treatment, plasma glutamine levels did not increase over the normal range and rather decreased to lower than the normal range in some patients. The treatment promptly decreased the blood ammonia level, which was accompanied by a decrease in plasma citrulline levels and an increase in plasma glutamine levels. These findings indicated that hyperammonemia was not only caused by the impairment of ureagenesis at ASS1 step, but was also associated with an impairment of glutamine synthetase (GS) ammonia-detoxification system in the hepatocytes. There was no decrease in the GS expressing hepatocytes. MCT supplement with a low-carbohydrate formula can supply the energy and/or substrates for ASS1 and GS, and enhance ammonia detoxification in hepatocytes. Histological improvement in the hepatic steatosis and ASS1-expression was also observed in a patient after long-term treatment.
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Affiliation(s)
- Kiyoshi Hayasaka
- Department of Pediatrics, Yamagata University School of Medicine, 2-2-2 Iida-nishi, Yamagata, 990-9585, Japan.
- Department of Pediatrics, Miyukikai Hospital, Kaminoyama, Japan.
| | - Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, 2-2-2 Iida-nishi, Yamagata, 990-9585, Japan
| | - Mitsunori Yamakawa
- Department of Pathological Diagnostics, Yamagata University School of Medicine, Yamagata, Japan
| | - Tetsuo Mitsui
- Department of Pediatrics, Yamagata University School of Medicine, 2-2-2 Iida-nishi, Yamagata, 990-9585, Japan
| | - Hisayoshi Watanabe
- Department of Gastroenterology, Yamagata University School of Medicine, Yamagata, Japan
| | - Hiroaki Haga
- Department of Gastroenterology, Yamagata University School of Medicine, Yamagata, Japan
| | - Masahide Yazaki
- Department of Biological Sciences for Intractable Neurological Disorders, Institute for Biomedical Sciences, Shinshu University, Nagano, Japan
| | - Hiromasa Ohira
- Department of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yasuo Ochiai
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Tamio Nakahara
- Department of Gastroenterology, Hikone Municipal Hospital, Hikone, Shiga, Japan
| | | | - Takahiro Nakayama
- Division of Internal Medicine, Nihonkai General Hospital, Sakata, Japan
| | - Takashi Kon
- Department of Gastroenterology, Yonezawa Municipal Hospital, Yonezawa, Japan
| | - Hiroshi Mitsubuchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Yoshida
- Department of Pediatrics, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
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13
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Tahara S, Tahara T, Horiguchi N, Yamada S, Urano M, Tsukamoto T, Kuroda M, Ohmiya N. PO-008 Accelerated DNA methylation in gastric mucosa adjacent to cancer after HELICOBACTER PYLORI eradication. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.53] [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] Open
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14
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Tahara T, Mori K, Mochizuki M, Ishiyama R, Noda M, Hoshi H, Lefor AK, Shinozaki S. Tolvaptan is effective in treating patients with refractory ascites due to cirrhosis. Biomed Rep 2017; 7:558-562. [PMID: 29250327 PMCID: PMC5727763 DOI: 10.3892/br.2017.1005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 08/21/2017] [Accepted: 10/17/2017] [Indexed: 12/17/2022] Open
Abstract
The treatment of refractory ascites due to cirrhosis is a clinical challenge for hepatologists. Tolvaptan, a novel aquaporin modulator, was made available in Japan in 2013 for the treatment of patients with refractory ascites due to cirrhosis. Despite the potential of this drug, few reports are available regarding its clinical use. The aim of the present study was to clarify the efficacy of tolvaptan in patients with refractory ascites due to cirrhosis and to review the clinical outcomes of treatment. Medical records were retrospectively reviewed for 65 patients with refractory ascites due to cirrhosis who were treated daily with 7.5 mg tolvaptan. The median follow-up time, defined as the period between starting tolvaptan and the last clinic visit or date of mortality, was 175 days (interquartile range 56-406). After one week of tolvaptan treatment, the mean weight reduction was 3.4 kg, with a response rate of 69% (45/65). Subsequently, factors associated with the response to tolvaptan were analyzed. On univariate analysis, maintaining serum sodium (Na) ≥140 mEq/l and an estimated glomerular filtration rate (eGFR) ≥55 ml/min were significant predictors of response (P<0.05). On multivariate analysis, hepatitis C virus etiology, maintaining serum Na ≥140 mEq/l and an eGFR ≥55 ml/min were significant predictors of response (P<0.05). Factors associated with survival were also analyzed using the Cox proportional hazard model. On multivariate analysis, responsiveness to tolvaptan was a predictor of long-term survival (P=0.002), and hyperbilirubinemia was associated with short-term survival (P=0.028). Additionally, Kaplan-Meier analysis with a log-rank test indicated longer survival times in tolvaptan responders than non-responders (P=0.011). In conclusion, tolvaptan was effective in treating patients with refractory ascites due to cirrhosis. In particular, tolvaptan treatment was highly effective for patients with hepatitis C virus etiology and normal serum Na and renal function. Furthermore, response to tolvaptan was associated with longer survival time while hyperbilirubinemia was associated with shorter survival time.
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Affiliation(s)
- Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Kiyoto Mori
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Mari Mochizuki
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Ryoko Ishiyama
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Marin Noda
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Hitomi Hoshi
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Utsunomiya, Tochigi 329-0974, Japan
| | - Alan Kawarai Lefor
- Department of Surgery, Jichi Medical University, Shimotsuke, Tochigi 329-0498, Japan
| | - Satoshi Shinozaki
- Shinozaki Medical Clinic, Utsunomiya, Tochigi 321-3223, Japan
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi 329-0498, Japan
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15
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Kobayashi J, Tahara T, Matsuzaki Y, Ono Y, Matsumoto J, Sato H, Onko K, Kishimoto Y, Tanino T, Sakaguchi H, Uchida N. PO-0999: Control of rectal volume with Kampo formula during prostate radiotherapy: A prospective study. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31435-4] [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: 11/30/2022]
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16
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Ikeda M, Shimizu S, Sato T, Morimoto M, Kojima Y, Inaba Y, Hagihara A, Kudo M, Nakamori S, Kaneko S, Sugimoto R, Tahara T, Ohmura T, Yasui K, Sato K, Ishii H, Furuse J, Okusaka T. Reply to the Letter to the editor 'Sorafenib plus hepatic arterial infusion chemotherapy with cisplatin versus Sorafenib for advanced hepatocellular carcinoma: randomized phase II trial' by Fornaro et al. Ann Oncol 2017; 28:903-904. [PMID: 28137738 DOI: 10.1093/annonc/mdx013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Indexed: 11/12/2022] Open
Affiliation(s)
- M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - S Shimizu
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Sato
- Department of Biostatistics, Kyoto University School of Public Health, Kyoto, Japan
| | - M Morimoto
- Department of Hepatobiliary and Pancreatic Medical Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine Center Hospital, Tokyo, Japan
| | - Y Inaba
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - A Hagihara
- Department of Hepatology, Osaka City University Hospital, Osaka, Japan
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka, Japan
| | - S Nakamori
- Department of Hepatobiliary and Pancreatic Surgery, Osaka National Hospital, Osaka, Japan
| | - S Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - T Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - T Ohmura
- Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo, Japan
| | - K Yasui
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - H Ishii
- Clinical Research Center, Shikoku Cancer Center, Matsuyama, Japan
| | - J Furuse
- Department of Medical Oncology, Kyorin University, Tokyo, Japan
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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Miyata N, Emoto K, Dei Y, Tomiyasu K, Ishiyama R, Horie T, Sakai G, Tahara T. Paraneoplastic Dermatomyositis in Hepatocellular Carcinoma with Colonic Perforation: A Case Report. Case Rep Oncol 2016; 9:547-553. [PMID: 27790119 PMCID: PMC5075726 DOI: 10.1159/000449370] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] [Indexed: 11/19/2022] Open
Abstract
Background Dermatomyositis (DM) is an autoimmune disease characterized by cutaneous Gottron papules, heliotrope rash, and proximal myopathy. It may also present as a paraneoplastic syndrome that can complicate a variety of different cancers, such as lung, cervical, and breast cancer. However, the association with hepatocellular carcinoma (HCC) is extremely rare. Moreover, to our knowledge, there are no previous reports of colonic perforation following steroid pulse treatment for a DM patient. Case Summary A 61-year-old male complained of a skin rash that began in his neck and spread to his face and abdomen. On physical examination, the patient was also found to have symmetrical proximal muscle weakness, abdominal pain, heliotrope rash in the periorbital skin, and poikiloderma on his face and abdomen. Serum level of muscle enzymes was remarkably increased. Muscle examination revealed symmetrical proximal weakness. The diagnosis of DM was made, and steroid treatment was started for symptomatic relief. A search for causative malignancy revealed HCC. Despite steroid therapy for DM, his symptoms did not improve. Additionally, C-reactive protein elevation was seen along with severe abdominal pain on day 14 of admission. Shortly after this, the patient died of septic shock due to suppurative peritonitis after perforation of the ascending colon. Conclusion Here, we present a rare case of DM caused by non-hepatitis-associated advanced HCC with colonic perforation. The cause of colonic perforation is still unclear. This case demonstrates the need to carefully monitor abdominal pain in DM patients as symptoms can be masked by steroid therapy.
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Affiliation(s)
- Naoteru Miyata
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Katsura Emoto
- Department of Pathology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Yoshiaki Dei
- Department of Rheumatology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Kazuhiro Tomiyasu
- Department of Neurology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Ryoko Ishiyama
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Tomofumi Horie
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Gen Sakai
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
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18
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Ikeda M, Shimizu S, Sato T, Morimoto M, Kojima Y, Inaba Y, Hagihara A, Kudo M, Nakamori S, Kaneko S, Sugimoto R, Tahara T, Ohmura T, Yasui K, Sato K, Ishii H, Furuse J, Okusaka T. Sorafenib plus hepatic arterial infusion chemotherapy with cisplatin versus sorafenib for advanced hepatocellular carcinoma: randomized phase II trial. Ann Oncol 2016; 27:2090-2096. [PMID: 27573564 PMCID: PMC5091321 DOI: 10.1093/annonc/mdw323] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [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: 04/24/2016] [Accepted: 08/04/2016] [Indexed: 12/13/2022] Open
Abstract
In a randomized phase II study of sorafenib plus hepatic arterial infusion chemotherapy with cisplatin in comparison with sorafenib alone in patients with advanced hepatocellular carcinoma, it yielded favorable overall survival when compared with sorafenib alone. This is the first report of its effectiveness in relation to the overall survival in comparison with that of sorafenib alone in patients with advanced hepatocellular carcinoma. Background Sorafenib (Sor) is acknowledged as a standard therapy for advanced hepatocellular carcinoma (HCC). This trial was conducted to evaluate the effect of addition of hepatic arterial infusion chemotherapy with cisplatin (SorCDDP) to Sor for the treatment of advanced HCC. Patients and methods We conducted a multicenter open-labeled randomized phase II trial in chemo-naïve patients with advanced HCC with Child-Pugh scores of 5–7. Eligible patients were randomly assigned 2:1 to receive SorCDDP (sorafenib: 400 mg bid; cisplatin: 65 mg/m2, day 1, every 4–6 weeks) or Sor (400 mg bid). The primary end point was overall survival. Results A total of 108 patients were randomized (Sor, n = 42; SorCDDP, n = 66). The median survival in the Sor and SorCDDP arms were 8.7 and 10.6 months, respectively [stratified hazard ratio (95% confidence interval), 0.60 (0.38–0.96), P = 0.031]. The median time to progression and the response rate were, respectively, 2.8 months and 7.3% in the Sor arm and 3.1 months and 21.7% in the SorCDDP arm. The adverse events were more frequent in the SorCDDP arm than in the Sor arm, but well-tolerated. Conclusion SorCDDP yielded favorable overall survival when compared with Sor in patients with advanced HCC. Clinical Trial registration UMIN-CTR (http://www.umin.ac.jp/ctr/index-j.htm), identification number: UMIN000005703.
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Affiliation(s)
- M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - S Shimizu
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - T Sato
- Department of Biostatistics, Kyoto University School of Public Health, Kyoto
| | - M Morimoto
- Department of Hepatobiliary and Pancreatic Medical Oncology, Kanagawa Cancer Center, Yokohama
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine Center Hospital, Tokyo
| | - Y Inaba
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, Nagoya
| | - A Hagihara
- Department of Hepatology, Osaka City University Hospital, Osaka
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka
| | - S Nakamori
- Department of Hepatobiliary and Pancreatic Surgery, Osaka National Hospital, Osaka
| | - S Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - T Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi
| | - T Ohmura
- Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo
| | - K Yasui
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - K Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto
| | - H Ishii
- Clinical Research Center, Shikoku Cancer Center, Matsuyama
| | - J Furuse
- Department of Medical Oncology, Kyorin University, Tokyo
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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Ikeda M, Shimizu S, Sato T, Morimoto M, Inaba Y, Kojima Y, Hagihara A, Kudo M, Nakamori S, Kaneko S, Sugimoto R, Tahara T, Ohmura T, Yasui K, Sato K, Ishii H, Furuse J, Okusaka T. Sorafenib plus intra-arterial cisplatin versus sorafenib alone in patients with advanced hepatocellular carcinoma: A randomized phase II trial. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.4076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Masafumi Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Satoshi Shimizu
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Tosiya Sato
- Department of Biostatistics, Kyoto University School of Public Health, Kyoto, Japan
| | - Manabu Morimoto
- Department of Hepatobiliary and Pancreatic Medical Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Yoshitaka Inaba
- Department of Interventional and Diagnostic Radiology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Yasushi Kojima
- National Center for Global Health and Medicine, Tokyo, Japan
| | - Atsushi Hagihara
- Department of Hepatology, Osaka City University Hospital, Osaka, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka, Japan
| | - Shoji Nakamori
- Department of Hepatobiliary and Pancreatic Surgery, Osaka National Hospital, Osaka-Shi, Japan
| | - Shuichi Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, Ishikawa, Japan
| | - Rie Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Toshiyuki Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Takumi Ohmura
- Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo, Japan
| | - Kohichiroh Yasui
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiko Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Hiroshi Ishii
- Department of Medical Oncology, Shikoku Cancer Center, Matsuyama, Japan
| | - Junji Furuse
- Department of Medical Oncology, Kyorin University School of Medicine, Tokyo, Japan
| | - Takuji Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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Tahara T, Kanatani K, Yoshida K, Miura H, Sakamoto M, Oshimura M. Purification and Some Properties of Acidocin 8912, a Novel Bacteriocin Produced byLactobacillus acidophilusTK8912. Biosci Biotechnol Biochem 2014; 56:1212-5. [PMID: 1368836 DOI: 10.1271/bbb.56.1212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/08/2022]
Abstract
Acidocin 8912, a bacteriocin produced by Lactobacillus acidophilus TK8912, was purified by ammonium sulfate fractionation and successive chromatographies on CM-cellulose, Sephadex G-50, Sephadex G-25, and reversed-phase HPLC on Aquapore RP-300. The purified acidocin 8912 migrated as a single band on SDS-PAGE. The molecular weight was estimated to be 5200 by SDS-PAGE, and 5400 by HPLC gel filtration on TSKgel G3000PWXL. Both the amino acid composition and the N-terminal amino acid sequence analysis indicated that acidocin 8912 was a peptide composed of presumably 50 amino acids containing a Lys residue at the N-terminus. The purified acidocin 8912 showed a bactericidal effect on sensitive cells but not a bacteriolytic effect.
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Affiliation(s)
- T Tahara
- Research Laboratory, Tamon Sake Brewing Co., Ltd., Hyogo, Japan
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Tahara T, Shirahata S, Osada K, Tachibana H, Shinohara K, Murakami H. Stimulation of Interferon β Production of Cultured Cells by Phospholipids in Foodstuffs. Biosci Biotechnol Biochem 2014; 56:1465-6. [PMID: 1368953 DOI: 10.1271/bbb.56.1465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- T Tahara
- Department of Food Science and Technology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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Tanaka Y, Ueyama H, Ogata M, Daikoku T, Morimoto M, Kitagawa A, Imajo Y, Tahara T, Inkyo M, Yamaguchi N, Nagata S. Evaluation of nanodispersion of iron oxides using various polymers. Indian J Pharm Sci 2014; 76:54-61. [PMID: 24799739 PMCID: PMC4007256] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 12/03/2013] [Accepted: 12/10/2013] [Indexed: 11/21/2022] Open
Abstract
In order to create Fe2O3 and Fe2O3·H2O nanoparticles, various polymers were used as dispersing agents, and the resulting effects on the dispersibility and nanoparticulation of the iron oxides were evaluated. It was revealed that not only the solution viscosity but also the molecular length of the polymers and the surface tension of the particles affected the dispersibility of Fe2O3 and Fe2O3·H2O particles. Using the dispersing agents 7.5% hydroxypropylcellulose-SSL, 6.0% Pharmacoat 603, 5.0% and 6.5% Pharmacoat 904 and 7.0% Metolose SM-4, Fe2O3 nanoparticles were successfully fabricated by wet milling using Ultra Apex Mill. Fe2O3·H2O nanoparticles could also be produced using 5.0% hydroxypropylcellulose-SSL and 4.0 and 7.0% Pharmacoat 904. The index for dispersibility developed in this study appears to be an effective indicator of success in fabricating nanoparticles of iron oxides by wet milling using Ultra Apex Mill.
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Affiliation(s)
- Y. Tanaka
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan
| | - H. Ueyama
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan
| | - M. Ogata
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan
| | - T. Daikoku
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan
| | - M. Morimoto
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan
| | - A. Kitagawa
- Kotobuki Industries Co., Ltd., Ohashi-Gyoen-Bldg. 2F, 1-8-1 Shinjuku, Shinjuku-ku, Tokyo 1600022, Japan
| | - Y. Imajo
- Kotobuki Industries Co., Ltd., Ohashi-Gyoen-Bldg. 2F, 1-8-1 Shinjuku, Shinjuku-ku, Tokyo 1600022, Japan
| | - T. Tahara
- Kotobuki Industries Co., Ltd., Ohashi-Gyoen-Bldg. 2F, 1-8-1 Shinjuku, Shinjuku-ku, Tokyo 1600022, Japan
| | - M. Inkyo
- Kotobuki Industries Co., Ltd., Ohashi-Gyoen-Bldg. 2F, 1-8-1 Shinjuku, Shinjuku-ku, Tokyo 1600022, Japan
| | - N. Yamaguchi
- Kishi Kasei Co., Ltd., 1-11-22 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 2360004, Japan
| | - S. Nagata
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure, Hiroshima 7370112, Japan,Address for correspondence: E-mail:
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Ito J, Kato R, Nozato T, Tahara T, Satoh Y. Relationship between preprocedual serum 1,5-anhydroglucitol concentrations and restenosis after implantation of drug-eluting stent. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4260] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nihonyanagi S, Singh PC, Yamaguchi S, Tahara T. Two-Dimensional Heterodyne-Detected VSFG Spectroscopy of Water Molecules at Charged Interfaces. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134105022] [Citation(s) in RCA: 2] [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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Takeuchi S, Kuramochi H, Tahara T. Ultraviolet-resonance femtosecond stimulated Raman study of the initial events in photoreceptor chromophore. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134108002] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ohashi H, Morita H, Tahara T, Tsunakawa H, Matsumoto A, Ogami K, Kato T, Miyazaki H. Thrombopoietin stimulates proliferation and megakaryocytic differentiation of mouse pro-B cell line BF-TE22. Cytotechnology 2012; 26:199-206. [PMID: 22358617 DOI: 10.1023/a:1007915809529] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We have isolated and characterized a thrombopoietin (TPO)-dependent BF-TE22 cell line endogenously expressing murine Mpl, which is a subclone of murine pro-B Ba/F3 cells. TPO stimulated the proliferation of BF-TE22 cells in a dose-dependent manner, and also induced the expression of megakaryocyte lineage-specific AP-51 and CD61 cell surface antigens. The results indicate that the murine Mpl on BF-TE22 cells can transmit both proliferation and megakaryocyte lineage-specific differentiation signals to cells. Furthermore, it was shown that IL-3 inhibits the TPO-induced differentiation signals of BF-TE22 cells. These results suggest that the signals mediated by IL-3 predominate over those of TPO in BF-TE22 cells. Thus, BF-TE22 cells will be useful for the biological and biochemical studies of the TPO-Mpl signal transduction mechanism.
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Affiliation(s)
- H Ohashi
- Pharmaceutical Research Laboratory, Kirin Brewery Co., Ltd, Miyahara 3, Takasaki, Gunma, 370, Japan
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Shibata Y, Okano S, Shiroza T, Tahara T, Nakazawa K, Kataoka S, Ishida I, Kobayashi T, Yoshie H, Abiko Y. Characterization of human-type monoclonal antibodies against reduced form of hemin binding protein 35 from Porphyromonas gingivalis. J Periodontal Res 2011; 46:673-81. [PMID: 21644999 DOI: 10.1111/j.1600-0765.2011.01389.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND OBJECTIVE The gram-negative anaerobe Porphyromonas gingivalis has been implicated as an important pathogen in the development of adult periodontitis, and its colonization of subgingival sites is critical in the pathogenic process. We previously identified a 35 kDa surface protein (hemin binding protein 35; HBP35) from P. gingivalis that exhibited coaggregation activity, while additional analysis suggested that this protein possessed an ability to bind heme molecules. For development of passive immunotherapy for periodontal diseases, human-type monoclonal antibodies have been prepared using HBP35 as an antigen in TransChromo mice. In the present study, we focused on a single antibody, TCmAb-h13, which is known to inhibit heme binding to recombinant HBP35. The aim of our investigation was to clarify the redox-related function of HBP35 and consider the benefits of human-type monoclonal antibodies. MATERIAL AND METHODS To examine the antigen recognition capability of TCmAbs with immunoblotting and Biacore techniques, we used the native form as well as several Cys-to-Ser variants of recombinant HBP35. RESULTS We found that the redox state of recombinant HBP35 was dependent on two Cys residues, (48) C and (51) C, in the thioredoxin active center (WCGxCx). Furthermore, TCmAb-h13 recognized the reduced forms of recombinant HBP35, indicating its inhibitory effect on P. gingivalis growth. CONCLUSION Hemin binding protein 35 appears to be an important molecule involved in recognition of the redox state of environmental conditions. In addition, TCmAb-h13 had an inhibitory effect on heme binding to recombinant HBP35, thereby interfering with P. gingivalis growth.
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Affiliation(s)
- Y Shibata
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Pham QH, Von Lueder TG, Namtvedt SK, Rosjo H, Omland T, Steine K, Timoteo AT, Mota Carmo M, Simoes M, Branco LM, Ferreira RC, Kato R, Ito J, Tahara T, Yokoyama Y, Ashikaga T, Satoh Y, Na JO, Hong HE, Kim MN, Shin SY, Choi CU, Kim EJ, Rha SW, Park CG, Seo HS, Oh DJ, Ticulescu R, Brigido S, Vriz O, Sparacino L, Popescu BA, Ginghina C, Carerj S, Nicolosi GL, Antonini-Canterin F, Onaindia Gandarias JJ, Romero A, Laraudogoitia E, Velasco S, Quintana O, Cacicedo A, Rodriguez I, Alarcon JA, Gonzalez J, Lekuona I, Onaindia Gandarias JJ, Laraudogoitia E, Romero A, Velasco S, Cacicedo A, Quintana O, Subinas A, Gonzalez J, Alarcon JA, Lekuona I, Abdula G, Lund LH, Winter R, Brodin L, Sahlen A, Masaki M, Cha YM, Yuasa T, Dong K, Dong YX, Mankad SV, Oh JK, Vallet F, Lequeux B, Diakov C, Sosner P, Christiaens L, Coisne D, Kihara C, Murata K, Wada Y, Uchida K, Ueyama T, Okuda S, Susa T, Matsuzaki M, Cho EJ, Choi KY, Kwon BJ, Kim DB, Jang SW, Cho JS, Jung HO, Jeon HK, Youn HJ, Kim JH, Cikes M, Bijnens B, Velagic V, Kopjar T, Milicic D, Biocina B, Gasparovic H, Almuntaser I, Brown A, Foley B, Mulvihill N, Crean P, King G, Murphy R, Takata Y, Taniguchi M, Nobusada S, Sugawara M, Toh N, Kusano K, Itoh H, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Poulsen MK, Henriksen JE, Dahl J, Johansen A, Haghfelt T, Hoilund-Carlsen PF, Beck-Nielsen H, Moller JE, Dankowski R, Wierzchowiecki M, Michalski M, Nowicka A, Szymanowska K, Pajak A, Poprawski K, Szyszka A, Kasner M, Westermann D, Schultheiss HP, Tschoepe C, Watanabe T, Iwai-Takano M, Kobayashi A, Machii H, Takeishi Y, Paelinck BP, Van Herck PL, Bosmans JM, Vrints CJ, Lamb HJ, Doltra A, Vidal B, Silva E, Poyatos S, Mont L, Berruezo A, Castel A, Tolosana JM, Brugada J, Sitges M, Dencker M, Bjorgell O, Hlebowicz J, Szelenyi ZS, Szenasi G, Kiss M, Prohaszka Z, Patocs A, Karadi I, Vereckei A, Saha SK, Anderson PL, Govind S, Govindan M, Moggridge JC, Kiotsekoglou A, Gopal AS, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Graefe M, Huang FQ, Zhang RS, Le TT, Tan RS, Sattarzadeh Badkoubeh R, Tavoosi A, Elahian AR, Drapkina O, Ivashkin VI, Vereckei A, Szelenyi ZS, Fazakas A, Pepo L, Janosi O, Karadi I, Kopitovic I, Goncalves A, Marcos-Alberca P, Almeria C, Feltes G, Rodriguez E, Garcia E, Hernandez-Antolin R, Macaya C, Silva Cardoso J, Zamorano JL, Navarro MS, Valentin M, Banes CM, Rigo F, Grolla E, Tona F, Cuaia V, Moreo A, Badano L, Raviele A, Iliceto S, Tarzia P, Sestito A, Nerla R, Di Monaco A, Infusino F, Matera D, Greco F, Tacchino RM, Lanza GA, Crea F, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Holte E, Vegsundvag J, Hole T, Hegbom K, Wiseth R, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Zagatina A, Zhuravskaya N, Tyurina TV, Tagliamonte E, Cirillo T, Coppola A, Marinelli U, Romano C, Riccio G, Citro R, Astarita C, Capuano N, Tagliamonte E, Cirillo T, Marinelli U, Quaranta G, Desiderio A, Riccio G, Romano C, Capuano N, Frattini S, Faggiano P, Zilioli V, Locantore E, Longhi S, Bellandi F, Faden G, Triggiani M, Dei Cas L, Dalsgaard M, Kjaergaard J, Iversen K, Hassager C, Dinh W, Nickl WN, Smettan JS, Koehler TK, Scheffold TD, Coll Barroso MCB, Guelker JG, Fueth RF, Kamperidis V, Hadjimiltiades S, Sianos G, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Velasco Del Castillo MS, Cacicedo A, Onaindia JJ, Quintana O, Alarcon JA, Rodriguez I, Telleria M, Subinas A, Lekuona I, Laraudogoitia E, Carstensen HG, Nordenberg C, Sogaard P, Fritz-Hansen T, Bech J, Galatius S, Jensen JS, Mogelvang R, Bartko PE, Graf S, Rosenhek R, Burwash IG, Bergler-Klein J, Clavel MA, Baumgartner H, Pibarot P, Mundigler G, Kirilmaz B, Eser I, Tuzun N, Komur B, Dogan H, Taskiran Comez A, Ercan E, Cusma-Piccione M, Zito C, Oreto G, Piluso S, Tripepi S, Oreto L, Longordo C, Ciraci L, Di Bella G, Carerj S, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Sknouril L, Dorda M, Holek B, Gajdusek L, Chovancik J, Branny M, Fiala M, Szymanski P, Lipczynska M, Klisiewicz A, Hoffman P, Jander N, Minners J, Martin G, Zeh W, Allgeier M, Gohlke-Baewolf C, Gohlke H, Nistri S, Porciani MC, Attanasio M, Abbate R, Gensini GF, Pepe G, Duncan RF, Piantadosi C, Nelson AJ, Wittert G, Dundon B, Worthley MI, Worthley SG, Jung P, Berlinger K, Rieber J, Sohn HZ, Schneider P, Leibig M, Koenig A, Klauss V, Tomkiewicz-Pajak L, Kolcz J, Olszowska M, Pieculewicz M, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Suchon E, Sobien B, Podolec P, Pieculewicz M, Przewlocki T, Wilkolek P, Tomkiewicz-Pajak L, Ziembicka A, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Hlawaty M, Wilkolek P, Sobien B, Suchon E, Podolec P, Van De Bruaene A, Hermans H, Buys R, Vanhees L, Delcroix M, Voigt JU, Budts W, De Cillis E, Acquaviva T, Basile D, Bortone AS, Kalimanovska-Ostric D, Nastasovic T, Vujisic-Tesic B, Jovanovic I, Milakovic B, Dostanic M, Stosic M, Frogoudaki A, Andreou K, Parisis J, Triantafyllidi E, Gaitani S, Paraskevaidis J, Anastasiou-Nana M, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Sobien B, Hlawaty M, Podolec P, De Pasquale G, Kuehn A, Petzuch K, Mueller J, Meierhofer C, Fratz S, Hager A, Hess J, Vogt M, Attenhofer Jost CH, Dearani JA, Scott CG, Burkhart HM, Connolly HM, Vitarelli A, Battaglia D, Caranci F, Padella V, Continanza G, Dettori O, Capotosto L, Vitarelli M, De Cicco V, Cortez Morichetti M, Mohanan Nair KK, Sasidaharan B, Thajudeen A, Tharakan JM, Mertens L, Ahmad N, Kantor PK, Grosse-Wortmann L, Friedberg MK, Bernard YF, Morel MA, Descotes-Genon V, Jehl J, Meneveau N, Schiele F, Kaldararova M, Simkova I, Tittel P, Masura J, Trojnarska O, Szczepaniak L, Mizia -Stec K, Cieplucha A, Bartczak A, Grajek S, Tykarski A, Gasior Z, Attenhofer Jost CH, Babovicvuksanovic D, Scott CG, Bonnichsen CR, Burkhart HM, Connolly HM, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee KJ, Chaturvedi R, Benson L, Mertens L, Bradley T, Iancu ME, Ghiorghiu I, Serban M, Craciunescu I, Hodo A, Popescu BA, Ginghina C, Morgan J, Morgan GJ, Slorach C, Hui W, Roche L, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Morgan J, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Milanesi O, Favero V, Padalino M, Biffanti R, Cerutti A, Maschietto N, Reffo E, Vida V, Stellin G, Irtyuga O, Gamazin D, Voronkina I, Tsoyi N, Gudkova E, Moiseeva O, Aggeli C, Kazazaki C, Felekos I, Lagoudakou S, Roussakis G, Skoumas J, Pitsavos C, Stefanadis C, Cueff C, Keenan N, Steg PG, Cimadevilla C, Ducrocq G, Vahanian A, Messika-Zeitoun D, Petrella L, Mazzola AM, Villani CV, Giancola RG, Ciocca MC, Di Eusanio DEM, Nolan S, Ionescu A, Skaug TR, Amundsen BH, Hergum T, Torp H, Haugen BO, Lopez Aguilera J, Mesa Rubio D, Ruiz Ortiz M, Delgado Ortega M, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Toledano Delgado F, Leon Del Pino M, Romo Pena E, Suarez De Lezo Cruz-Conde J, De Marco E, Colucci A, Comerci G, Gabrielli FA, Natali R, Garramone B, Savino M, Lotrionte M, Sonaglioni A, Loperfido F, Zdravkovic M, Perunicic J, Krotin M, Ristic M, Vukomanovic V, Zaja M, Radovanovic S, Saric J, Zdravkovic D, Cotrim C, Almeida AR, Miranda R, Almeida AG, Picano E, Carrageta M, D'andrea A, Cocchia R, Riegler L, Golia E, Scarafile R, Citro R, Caso P, Russo MG, Bossone E, Calabro' R, Noman H, Adel A, Elfaramawy AMR, Abdelraouf M, Elnaggar WAEL, Baligh E, Sargento L, Silva D, Goncalves S, Ribeiro S, Vinhas Sousa G, Almeida A, Lopes M, Rodriguez-Manero M, Aguado Gil L, Azcarate P, Lloret Luna P, Macias Gallego A, Castano SARA, Garcia M, Pujol Salvador C, Barba J, Redondo P, Tomasoni L, Sitia S, Atzeni F, Gianturco L, Ricci C, Sarzi-Puttini P, Turiel M, Sitia S, Tomasoni L, Atzeni F, De Gennaro Colonna V, Sarzi-Puttini P, Turiel M, Uejima T, Jaroch J, Antonini-Canterin F, Polombo C, Carerj S, Hughes A, Vinereanu D, Evanvelista A, Leftheriotis G, Fraser AG, Lewczuk A, Sobkowicz B, Tomaszuk-Kazberuk A, Sawicki R, Hirnle T, Michalski BW, Filipiak D, Kasprzak JD, Lipiec P, Dalen H, Haugen BO, Mjolstad OC, Klykken BE, Graven T, Martensson M, Olsson M, Brodin LA, Antonini-Canterin F, Ticulescu R, Vriz O, Enache R, Leiballi E, Popescu BA, Ginghina C, Nicolosi GL, Penhall A, Perry R, Altman M, Sinhal A, Bennetts J, Chew DP, Joseph MX, Larsen LH, Kjaergaard J, Kristensen T, Kober LV, Kofoed KF, Hassager C, Moscoso Costa F, Ribeiras R, Brito J, Boshoff S, Neves J, Teles R, Canada M, Andrade MJ, Gouveia R, Silva A, Miskovic A, Poerner TP, Stiller CS, Goebel BG, Moritz AM, Stefani L, Galanti GG, Moraldo M, Bergamini C, Pabari PA, Dhutia NM, Malaweera ASN, Willson K, Davies J, Hughes AD, Xu XY, Francis DP, Jasaityte R, Amundsen B, Barbosa D, Loeckx D, Kiss G, Orderud F, Robesyn V, Claus P, Torp H, D'hooge J, Kihara C, Murata K, Wada Y, Uchida K, Nao T, Okuda S, Susa T, Miura T, Matsuzaki M, Shams K, Samir S, Samir R, El-Sayed M, Anwar AM, Nosir Y, Galal A, Chamsi-Pasha H, Ciobanu A, Dulgheru R, Bennett S, Vinereanu D, De Luca A, Toncelli L, Cappelli F, Stefani L, Cappelli B, Vono MCR, Galanti G, Zorman Y, Yilmazer MS, Akyildiz M, Gurol T, Aydin A, Dagdeviren B, Kalangos A. Poster session V * Saturday 11 December 2010, 08:30-12:30. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fujii S, Kiyokawa T, Tsukihara S, Senda T, Tahara T, Kaminou T, Ogawa T. Magnetic resonance imaging findings of ovarian stromal hyperthecosis. Acta Radiol 2009; 50:954-7. [PMID: 19863423 DOI: 10.1080/02841850903207188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Ovarian stromal hyperthecosis is characterized by diffuse distribution of luteinized stromal cells accompanied by varying degrees of stromal hyperplasia. We report a case of ovarian stromal hyperthecosis with particular regard to magnetic resonance (MR)-pathologic correlation. At initial MR imaging, the central areas of the bilateral ovarian masses showed hypointensity on T1-weighted images and hyperintensity on T2-weighted images, while the peripheries of the bilateral masses showed isointensity to myometrium on T1-weighted images and heterogeneous signal intensities on T2-weighted images. At 15 days after the initial MR imaging examination, a second MR imaging demonstrated shrinkage of the bilateral ovarian masses. Change in the peripheries to predominantly isointensity to myometrium on the T2-weighted images was also observed. The patient underwent bilateral oophorectomy. Microscopic examination revealed scattered nests of lutein cells on a background of densely proliferated ovarian stroma with minimal collagen production in both ovaries. Edema was occasionally seen in the outer portion but was marked in the central zone of the ovaries, particularly on the left. The final pathologic diagnosis was stromal hyperthecosis. With regard to MR-pathologic correlation, the MR findings in the peripheries of the bilateral masses (isointensity relative to myometrium on both T1- and T2-weighted imaging) showed the characteristics of stromal hyperthecosis.
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Affiliation(s)
- S. Fujii
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan
| | - T. Kiyokawa
- Department of Pathology, Jikei University School of Medicine, Tokyo, Japan
| | - S. Tsukihara
- Department of Obstetrics and Gynecology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - T. Senda
- Department of Radiology, Tottori Pref. Kousei Hospital, Kurayoshi, Japan
| | - T. Tahara
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan
- Department of Radiology, Tottori Pref. Kousei Hospital, Kurayoshi, Japan
| | - T. Kaminou
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan
| | - T. Ogawa
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan
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Tahara T, Shibata T, Nakamura M, Yoshioka D, Arisawa T, Hirata I. Light blue crest sign, a favorable marker for predicting the severity of gastric atrophy in the entire stomach. Endoscopy 2008; 40:880; author reply 881. [PMID: 18828092 DOI: 10.1055/s-2008-1077582] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Matsugaki N, Yamada Y, Hiraki M, Igarashi N, Yamamoto S, Tsuchiya K, Shioya T, Maezawa H, Asaoka S, Miyauchi H, Tahara T, Tanimoto Y, Wakatsuki S. A new macromolecular crystallography beamline for softer X-ray at the Photon Factory. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094415] [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: 11/10/2022] Open
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Tahara T, Arisawa T, Shibata T, Hirata I, Nakano H. Association of polymorphism of TLR4 and CD14 genes with gastroduodenal diseases in Japan. Inflammopharmacology 2007; 15:124-8. [DOI: 10.1007/s10787-006-1567-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tahara T, Inoue N, Hisamatsu T, Kashiwagi K, Takaishi H, Kanai T, Watanabe M, Ishii H, Hibi T. Clinical significance of microsatellite instability in the inflamed mucosa for the prediction of colonic neoplasms in patients with ulcerative colitis. J Gastroenterol Hepatol 2005; 20:710-5. [PMID: 15853983 DOI: 10.1111/j.1440-1746.2005.03803.x] [Citation(s) in RCA: 29] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Although molecular mechanisms underlying ulcerative colitis (UC)-associated neoplasms have been studied for years, understanding of these mechanisms remains incomplete and no good predictable marker for development of colonic neoplasms in patients with UC has been established. The aim of this study was to assess if microsatellite instability (MSI) contributes to the development of colonic neoplasms in patients with UC. METHODS We have examined MSI in chronic inflamed and neoplastic colonic mucosa of UC patients. We have also obtained serial biopsied colonic tissues retrospectively 2-12 years before the final diagnosis from patients with high level MSI (MSI-H+) UC-associated neoplasms, and analyzed MSI using them at different periods. RESULTS Eight of 12 UC-associated colon cancers (67%), four of six UC-associated high grade dysplasias (67%), and two of six UC-associated low grade dysplasias (33%) revealed MSI-H+ phenotypes. In contrast, 15 of 59 lesions (25%) in inflamed UC mucosa without colonic neoplasm revealed MSI-H +. Interestingly, all four patients with MSI-H+ phenotypes at the final diagnosis of UC-associated colon cancer or dysplasia had already had MSI-H+ at the stage of chronic colitis, 2-12 years before the final diagnosis. CONCLUSION These results support the notion that MSI contributes to the carcinogenesis of UC-associated neoplasms, and indicate that this analysis in inflamed colonic mucosa at surveillance colonoscopy is useful for identifying UC patients who have high risk for neoplastic progression.
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Affiliation(s)
- Toshiyuki Tahara
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
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Otsuka T, Yamagishi Y, Matsumura A, Tahara T, Shiozaki H. [A case of liver abscess with septic thrombophlebitis of the portal vein and superior mesenteric vein caused by Streptococcus milleri]. Nihon Shokakibyo Gakkai Zasshi 2003; 100:1389-94. [PMID: 14748325] [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] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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Mori E, Thomas M, Motoki K, Nakazawa K, Tahara T, Tomizuka K, Ishida I, Kataoka S. Human normal hepatocytes are susceptible to apoptosis signal mediated by both TRAIL-R1 and TRAIL-R2. Cell Death Differ 2003; 11:203-7. [PMID: 14576771 DOI: 10.1038/sj.cdd.4401331] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [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: 11/09/2022] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) triggers apoptosis in tumor cells without toxicity to normal cells, but some recombinant versions of TRAIL caused hepatocyte death. We generated fully human monoclonal antibodies (mAbs) that bind specifically to TRAIL receptor 1 (TRAIL-R1) and TRAIL receptor 2 (TRAIL-R2), which mediate apoptosis signal when they ligate with TRAIL, to investigate the contribution of each receptor to induce tumor cell apoptosis and hepatocyte toxicity. All of mAbs to TRAIL-R1 and TRAIL-R2 induced cell death in several cancer cell lines susceptible to TRAIL but not in human umbilical vein endothelial cells in vitro. Both anti-TRAIL-R1 mAbs and anti-TRAIL-R2mAbs also caused cell death in hepatocytes. However, a subset of mAbs to TRAIL-R2, which was characterized by the TRAIL blocking activity, did not show strong hepatocyte toxicity. These results indicate that human normal hepatocytes are susceptible to both TRAIL-R1- and TRAIL-R2-mediated apoptosis signal. Cell Death and Differentiation (2004) 11, 203-207. doi:10.1038/sj.cdd.4401331 Published online 24 October 2003
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Affiliation(s)
- E Mori
- Pharmaceutical Research Laboratories, Kirin Brewery Co. Ltd., 3 Miyahara, Takasaki, Gunma 370-1295, Japan
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Aoki T, Tahara T, Satoh K, Fujino H, Watabe H. General properties of GFP-display, an electrophoretic analysis for single amino acid changes in target polypeptides. Anal Biochem 2003; 317:107-15. [PMID: 12729607 DOI: 10.1016/s0003-2697(03)00112-x] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The migrating position of green fluorescent protein (GFP)-fused polypeptide varied on an SDS/urea gel by a single amino acid change in the fused polypeptide segment. An easy detection method for a single amino acid change based on this observation was called "GFP-display." Using various target polypeptides, staphylococcal protein A (SpA), Ras, p53, and human beta3 adrenergic receptor (AR), and their mobility-shift patterns resulting from the single amino acid changes, several important properties of GFP-display were revealed as follows: (i). since the binding of dodecyl sulfate ions to acidic or hydrophilic amino acids is weaker than that to basic or hydrophobic amino acids, the ions bound weakly to the fused polypeptide segment are forced to come off by high concentrations of urea prior to the ions bound strongly, resulting in the mobility shift, (ii). the mobility shift is estimated to a certain extent using a new parameter called the "GD value" calculated from the isoelectric point, hydrophilicity, and number of fused amino acids, and (iii). the fluorescence intensity of GFP-fused polypeptide tends to increase with the average hydrophilicity of the fused polypeptide segment. GFP-display will be a helpful technique for many kinds of gene or protein studies related to amino acid substitutions such as the random mutagenesis in a gene of interest.
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Affiliation(s)
- Takashi Aoki
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.
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Aoki T, Tahara T, Fujino H, Watabe H. "GFP-display," an easy detection method for single amino acid changes in a target polypeptide: application to random mutagenesis. Anal Biochem 2002; 300:103-6. [PMID: 11743699 DOI: 10.1006/abio.2001.5451] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takashi Aoki
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.
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Tahara T, Takase B, Yamagishi T, Takayama E, Miyazaki K, Arakawa K, Satomura K, Yoshizu H, Shimazaki H, Tamai S, Kurita A, Ohsuzu F. A case report on primary cardiac non-Hodgkin's lymphoma: an approach by magnetic resonance and thallium-201 imaging. J Cardiovasc Magn Reson 2001; 1:163-7. [PMID: 11550350 DOI: 10.3109/10976649909080846] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Tahara
- Department of Internal Medicine-1, National Defense Medical College, Tokorozawa City, Saitama, Japan
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Affiliation(s)
- X Gao
- Department of Pediatrics, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.
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Nishikawa M, Tahara T, Hinohara A, Miyajima A, Nakahata T, Shimosaka A. Role of the microenvironment of the embryonic aorta-gonad-mesonephros region in hematopoiesis. Ann N Y Acad Sci 2001; 938:109-16. [PMID: 11458497 DOI: 10.1111/j.1749-6632.2001.tb03579.x] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although various cytokines, growth factors, and chemokines are known to regulate hematopoiesis, expansion of hematopoietic stem cells (HSCs) in vitro with the use of such agents has proved problematic. Stromal cells are major components of the microenvironment that surrounds hematopoietic cells and are thought to play an important role in hematopoiesis in vivo. Co-culture of HSCs with stromal cells promotes hematopoiesis and self-renewal of HSCs. Definitive hematopoietic cells first appear during mammalian embryonic development in the aorta-gonad-mesonephros (AGM) region, and it is therefore thought that the microenvironment of this region plays an important role in HSC ontogeny. We have adopted two approaches to studying the contribution of the AGM microenvironment to hematopoiesis. In the first approach, we have developed an in vitro culture system for mouse AGM explants. Hematopoiesis is enhanced in such cultures by the presence of the combination of stem cell factor (SCF), basic fibroblast growth factor, leukemia inhibitory factor, and oncostatin M (SFLO culture). However, transplantation assays revealed that HSCs capable of long-term reconstitution of the hematopoietic compartment of irradiated mice (LTR-HSCs) do not expand in AGM-SFLO cultures; rather, these cultures appear to provide a favorable microenvironment for hematogenic angioblasts that are precursors of both endothelial and hematopoietic cells. In our second approach, we have established various stromal cell lines from the mouse AGM region. The AGM-S3 cell line supports human and mouse primitive hematopoietic cells as well as mouse LTR-HSCs. Maintenance of LTR-HSCs is mediated by a mechanism other than SCF signaling through its receptor (c-Kit). These two in vitro approaches should prove useful for further elucidation of the mechanisms that underlie hematopoiesis and HSC self-renewal.
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Affiliation(s)
- M Nishikawa
- Pharmaceutical Research Laboratory, Pharmaceutical Division, Kirin Brewery Co., Ltd., 3 Miyahara, Takasaki-shi, Gunma 370-1202, Japan.
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Abstract
Thrombopoietin (TPO), the c-Mpl ligand, is produced constitutively in liver and other organs, circulates in the bloodstream, and is delivered to bone marrow, where it stimulates the early development of multiple hematopoietic lineages and megakaryocytopoiesis. The concentration of TPO in blood is regulated by c-Mpl mass on platelets and megakaryocytes. In addition to regulation by the number of TPO molecules, including the possible modulation of TPO mRNA abundance in bone marrow, megakaryocytopoiesis and platelet production may be regulated as a result of modulation of TPO activity by proteolytic processing that generates truncated forms of the molecule. Characterization of TPO partially purified from human plasma, however, revealed that the full-length molecule was the predominant form in the blood of both normal individuals and thrombocytopenic patients, although small amounts of truncated species were detected. Thus, truncation of TPO, at least that in the circulation examined, does not appear to contribute to the direct regulation of platelet production in response to increased demand. Given that native TPO isolated from the plasma of thrombocytopenic animals comprises truncated forms, the truncation of TPO is likely of physiological importance in the life history of this molecule.
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Affiliation(s)
- T Kato
- Pharmaceutical Research Laboratory, Kirin Brewery Co., Ltd., Takasaki, Gunma, Japan
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Abstract
Complementary DNAs encoding a previously unidentified mouse Notch ligand and its human ortholog were isolated. The new Notch ligand contains a signal sequence, a DSL domain, eight epidermal growth factor-like repeats, a transmembrane domain, and an intracellular region, all of which are characteristics of members of the Delta protein family. The new protein was therefore designated Delta-4. Several previously unidentified sequences in both the extracellular and intracellular regions were shown to be conserved among vertebrate Delta proteins. The tissue distribution of Delta-4 mRNA resembles that previously described for Notch-4 (Int-3) transcripts. However, in situ hybridization with mouse lung revealed that Delta-4 mRNA is abundant in squamous alveolar cells that neighbor endothelial cells; Notch-4 expression is largely restricted to the latter cell type. Soluble forms of the extracellular portion of Delta-4 inhibit the apparent proliferation of human aortic endothelial cells, but not human pulmonary arterial endothelial cells.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Amino Acid Sequence
- Animals
- Blood Proteins/chemistry
- Blood Proteins/classification
- Blood Proteins/genetics
- Blood Proteins/pharmacology
- Calcium-Binding Proteins
- Cell Division/drug effects
- Cloning, Molecular
- DNA, Complementary/analysis
- Endothelium/cytology
- Endothelium/drug effects
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Growth Substances/chemistry
- Growth Substances/classification
- Growth Substances/genetics
- Growth Substances/pharmacology
- Humans
- In Situ Hybridization
- Intercellular Signaling Peptides and Proteins
- Mice
- Molecular Sequence Data
- Phylogeny
- Proto-Oncogene Proteins/chemistry
- Receptor, Notch4
- Receptors, Cell Surface
- Receptors, Notch
- Sequence Analysis, Protein
- Sequence Homology, Amino Acid
- Solubility
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Affiliation(s)
- T Yoneya
- Pharmaceutical Research Laboratory, Kirin Brewery Co. Ltd., Miyahara, Takasaki, Gunma 370-1295, Japan
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Kawasaki H, Nakano T, Kohdera U, Tahara T, Kato T, Kobayashi Y. Serum thrombopoietin concentration and peripheral platelet counts in essential thrombocythemia. Ann Hematol 2001; 80:62-3. [PMID: 11233780 DOI: 10.1007/s002770000221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Radiation therapy is a powerful method for the control of cancer. The utilization of abdominal or pelvic radiation has been extended, and the incidence of radiation enteritis appears to be increasing. The majority of the induced lesions is in the distal ileum, sigmoid colon, or rectum. Reported here is an unusual case of radiation enteritis which caused a severe sequelae of stricture in the transverse colon as a long-term effect of therapeutic irradiation for uterine cancer, and required a surgical resection.
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MESH Headings
- Abdominal Pain/etiology
- Anastomosis, Surgical
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Colitis, Ulcerative/drug therapy
- Colitis, Ulcerative/etiology
- Colitis, Ulcerative/surgery
- Combined Modality Therapy
- Constriction, Pathologic/drug therapy
- Constriction, Pathologic/etiology
- Constriction, Pathologic/surgery
- Female
- Fever/etiology
- Gastrointestinal Hemorrhage/etiology
- Humans
- Hysterectomy
- Melena/etiology
- Middle Aged
- Ovariectomy
- Postoperative Complications/etiology
- Radiation Injuries/drug therapy
- Radiation Injuries/etiology
- Radiation Injuries/surgery
- Radiation Pneumonitis/etiology
- Radiotherapy, Adjuvant/adverse effects
- Radiotherapy, High-Energy/adverse effects
- Sulfasalazine/therapeutic use
- Uterine Cervical Neoplasms/radiotherapy
- Uterine Cervical Neoplasms/surgery
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Affiliation(s)
- K Yoshimura
- Department of Internal Medicine, Kodama Hospital, Takarazuka, Hyogo
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Muto T, Feese MD, Shimada Y, Kudou Y, Okamoto T, Ozawa T, Tahara T, Ohashi H, Ogami K, Kato T, Miyazaki H, Kuroki R. Functional analysis of the C-terminal region of recombinant human thrombopoietin. C-terminal region of thrombopoietin is a "shuttle" peptide to help secretion. J Biol Chem 2000; 275:12090-4. [PMID: 10766842 DOI: 10.1074/jbc.275.16.12090] [Citation(s) in RCA: 25] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Thrombopoietin (TPO) is a cytokine that primarily stimulates megakaryocytopoiesis and thrombopoiesis. TPO has a unique C-terminal tail peptide of about 160 amino acids that consists mostly of hydrophilic residues and contains six N-linked sugar chains. In order to investigate the biological function of the C-terminal domain, two series of mutations were performed. One is systematic truncation from the C terminus. Another is elimination of N-glycosylation sites in the C-terminal domain by Asn to Gln mutations. After the mutant proteins were expressed by mammalian cells, it was found that the elimination of the N-linked sugar sites did not affect the biological activity, whereas truncation of the C-terminal domain resulted in elevation of in vitro activity up to 4-fold. The C-terminal peptide itself was found to inhibit the in vitro activity. Moreover, both the C-terminal truncation and the elimination of the N-glycosylation sites decreased the secretion level progressively down to (1)/(10) that of wild type, and the amount of the mutant left in the cell increased. The N-glycosylation in the C-terminal region was found to be important for secretion of TPO. Among six N-glycosylation sites in the C-terminal region, two locations, Asn-213 and Asn-234, were found to be critical for secretion, and two other locations, Asn-319 and Asn-327, did not affect the secretion.
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Affiliation(s)
- T Muto
- Central Laboratories for Key Technology, Kirin Brewery Co., Ltd., 1-13-5 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236, Japan
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Tomita N, Motomura S, Sakai R, Fujimaki K, Tanabe J, Fukawa H, Harano H, Kanamori H, Ogawa K, Mohri H, Maruta A, Kodama F, Ishigatsubo Y, Tahara T, Kato T. Strong inverse correlation between serum TPO level and platelet count in essential thrombocythemia. Am J Hematol 2000. [PMID: 10679802 DOI: 10.1002/(sici)1096-8652(200003)63:3<131::aid-ajh4>3.0.co;2-#] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Serum thrombopoietin (TPO) levels in 50 essential thrombocythemia (ET) patients were measured using a highly sensitive sandwich ELISA. In nine cases, TPO levels were measured at two points with different platelet counts. ET patients showed significantly higher serum TPO levels (n = 59, 2.70 +/- 2.74 fmol/mL, P < 0.0001) than those of normal individuals (n = 29, 0.83 +/- 0.36 fmol/mL). Twenty-three previously untreated ET patients also showed significantly higher serum TPO levels (1.33 +/- 0.75 fmol/mL, P = 0.0066) than normal individuals. Extremely high serum TPO levels (5.46 +/- 3.68 fmol/mL) were observed in ET patients with normal platelet counts. Furthermore, a strong inverse correlation was found between serum TPO levels and platelet counts in ET patients (R = -0.729, P < 0. 0001). This inverse correlation also held for each of nine cases with two-point TPO measurements. In the clinical course of ET, megakaryocyte mass may parallel the platelet mass before and after chemotherapy. Although it is unknown whether overproduction of TPO exists or not in ET, total platelet and megakaryocyte mass, i.e., the total number of c-Mpl, may play a role to regulate serum TPO levels.
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Affiliation(s)
- N Tomita
- First Department of Internal Medicine, Urafune Hospital, Yokohama, Kanagawa, Japan
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Tomita N, Motomura S, Sakai R, Fujimaki K, Tanabe J, Fukawa H, Harano H, Kanamori H, Ogawa K, Mohri H, Maruta A, Kodama F, Ishigatsubo Y, Tahara T, Kato T. Strong inverse correlation between serum TPO level and platelet count in essential thrombocythemia. Am J Hematol 2000; 63:131-5. [PMID: 10679802 DOI: 10.1002/(sici)1096-8652(200003)63:3<131::aid-ajh4>3.0.co;2-#] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Serum thrombopoietin (TPO) levels in 50 essential thrombocythemia (ET) patients were measured using a highly sensitive sandwich ELISA. In nine cases, TPO levels were measured at two points with different platelet counts. ET patients showed significantly higher serum TPO levels (n = 59, 2.70 +/- 2.74 fmol/mL, P < 0.0001) than those of normal individuals (n = 29, 0.83 +/- 0.36 fmol/mL). Twenty-three previously untreated ET patients also showed significantly higher serum TPO levels (1.33 +/- 0.75 fmol/mL, P = 0.0066) than normal individuals. Extremely high serum TPO levels (5.46 +/- 3.68 fmol/mL) were observed in ET patients with normal platelet counts. Furthermore, a strong inverse correlation was found between serum TPO levels and platelet counts in ET patients (R = -0.729, P < 0. 0001). This inverse correlation also held for each of nine cases with two-point TPO measurements. In the clinical course of ET, megakaryocyte mass may parallel the platelet mass before and after chemotherapy. Although it is unknown whether overproduction of TPO exists or not in ET, total platelet and megakaryocyte mass, i.e., the total number of c-Mpl, may play a role to regulate serum TPO levels.
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Affiliation(s)
- N Tomita
- First Department of Internal Medicine, Urafune Hospital, Yokohama, Kanagawa, Japan
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Ashida K, Arakawa K, Yamagishi T, Tahara T, Ayaori M, Miyazaki K, Shibuya T, Hatori N, Yoshizu H, Tanaka T, Ohsuzu F. A case of aortic dissection with transient ST-segment elevation due to functional left main coronary artery obstruction. Jpn Circ J 2000; 64:130-4. [PMID: 10716527 DOI: 10.1253/jcj.64.130] [Citation(s) in RCA: 15] [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: 11/09/2022]
Abstract
A 48-year-old man with a history of hypertension and diabetes mellitus was hospitalized with sudden onset of severe chest pain. He was in cardiogenic shock with a systolic pressure of 60 mm Hg. His electrocardiogram (ECG) showed ST-segment elevation in the precordial leads suggestive of acute anteroseptal myocardial infarction. The ST-segment returned to baseline after the systolic blood pressure rose to 100 mm Hg with the administration of sympathomimetic agents. Aortography and transesophageal echocardiography demonstrated type A aortic dissection and aortic regurgitation. Aortography and short-axis transesophageal echocardiography showed during diastole almost complete collapse of the true lumen of the ascending aorta caused by the intimal flap. The patient underwent surgical repair of the aortic dissection and implantation of Palmaz stents in the carotid arteries. Decreased blood pressure and the presence of aortic regurgitation accelerated the collapse of the true lumen during diastole in the ascending aorta, resulting in functional obstruction of the left main coronary artery, which may have been related to ST-segment changes in this case.
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Affiliation(s)
- K Ashida
- The First Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
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Matsuura S, Tahara T, Ro T, Masumi T, Kasuya H, Yokota T. Aneurysmal bone cyst of the coronoid process of the mandible. Dentomaxillofac Radiol 1999. [DOI: 10.1038/sj.dmfr.4600468] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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