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Saito Y, Terasaki Y, Kashiwada T, Tanaka T, Takei H, Kimura G, Kondo Y, Kawagoe T, Matsushita A, Noro R, Minegishi Y, Kamio K, Seike M, Gemma A. Clinicopathological characteristics of everolimus-associated interstitial lung disease: A single-center consecutive analysis. J NIPPON MED SCH 2024:JNMS.2024_91-211. [PMID: 38233124 DOI: 10.1272/jnms.jnms.2024_91-211] [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] [Indexed: 01/19/2024]
Abstract
BACKGROUND Everolimus, a mammalian target of rapamycin inhibitor used as an antineoplastic drug, is associated with a remarkably high incidence of interstitial lung disease (ILD). The clinical and pathological characteristics of ILD caused by everolimus have not been thoroughly investigated; therefore, we aimed to elucidate the features of everolimus-associated ILD. METHODS We retrospectively reviewed the medical records of patients who received everolimus for cancer treatment at our hospital. Patient backgrounds were compared between the ILD and non-ILD groups. Chest computed tomography (CT), changes in biomarkers, and lung histopathological features were analyzed for ILD cases. RESULTS Sixty-six patients were reviewed, and ILD developed in 19. There were no differences in patient demographics between the ILD and non-ILD groups. The severity of ILD was grade 1 (G1) in 9 and grade 2 (G2) in 10 cases. Chest CT showed organizing pneumonia (OP) or a hypersensitive pneumonia pattern. The levels of lactate dehydrogenase, C-reactive protein, Krebs von den lungen-6, and surfactant protein-D (SP-D) at the onset of ILD were significantly higher than those at baseline. Analysis of G1 and G2 ILD subgroups showed a higher SP-D levels in the G2 subgroup. Five patients underwent lung biopsies; all specimens demonstrated alveolitis with lymphocytic infiltration and granulomatous lesions, and some had OP findings. CONCLUSIONS Everolimus-associated ILD is mild and has a favorable prognosis. Patients with symptomatic ILD were more likely to have higher SP-D levels than those with asymptomatic ILD. Granulomatous lesions are an important pathological feature of everolimus-associated ILD.
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Affiliation(s)
- Yoshinobu Saito
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | | | - Takeru Kashiwada
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Toru Tanaka
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Hiroyuki Takei
- Department of Breast Surgery and Oncology, Nippon Medical School
| | - Go Kimura
- Department of Urology, Nippon Medical School
| | | | | | - Akira Matsushita
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School
| | - Rintaro Noro
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Yuji Minegishi
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Koichiro Kamio
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Masahiro Seike
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Akihiko Gemma
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
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Kawagoe T, Ikeda G, Oshiro Y, Kaneko K, Iwakiri K. A Proposed New Clinical Classification of Metastatic Gastric Cancer - Pyloric and Antral Gastric Cancer. J NIPPON MED SCH 2021; 89:176-183. [PMID: 34526459 DOI: 10.1272/jnms.jnms.2022_89-212] [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] [Indexed: 11/19/2022]
Abstract
BACKGROUND We aimed to classify metastatic pyloric/antral gastric cancer in terms of macroscopic morphology and metastatic form. METHODS Thirty-eight patients with pyloric/antral gastric cancer were included in the study. Patients were classified according to a combination of Borrmann classification type and metastatic type, and the clinicopathological characteristics of each group were compared. RESULT Of the 38 patients, 33 (type II: 9 and type III: 24) (87%) had ulcerative gastric cancer. Ulcerative gastric cancer was classified into four groups: lymphatic only group (L+H-P-), lymphatic + hematogenous group (L+H+P-), disseminated ± lymphatic group (L±H-P+), and lymphatic + hematogenous + disseminated group (L+H+P+). In the L+H-P- group, all patients had bulky lymph nodes and serum levels of both carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) were high; the condition of patients was good, and the therapeutic response was good. In the L+H+P- group, metastases other than liver metastases were rare, and serum CEA levels were high. In the L±H-P+ group, the predominant histological type was signet ring cell carcinoma; both serum CEA and CA19-9 levels were low. Patients in the L+H+P+ group had higher serum CA19-9 levels and were more prone to hematogenous metastasis to various organs; these patients had worse patient status and lower treatment response. Gastric cancer other than ulcerative type was only detected in five patients (type V: 3, type IV: 1, type I: 1). CONCLUSION Classification by a combination of macroscopic and metastatic form in pyloric/antral metastatic gastric cancer might be useful for diagnosis and treatment.
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Affiliation(s)
- Tetsuro Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
| | - Go Ikeda
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
| | - Yu Oshiro
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
| | - Keiko Kaneko
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
| | - Katsuhiko Iwakiri
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
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Momma E, Koeda M, Tanabe T, Hoshikawa Y, Hoshino S, Kawami N, Kawagoe T, Tatsuguchi A, Kaise M, Iwakiri K. Relationship between gastroesophageal reflux disease (GERD) and constipation: laxative use is common in GERD patients. Esophagus 2021; 18:152-155. [PMID: 32860581 DOI: 10.1007/s10388-020-00770-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 06/22/2020] [Accepted: 08/14/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND The relationship between gastroesophageal reflux disease (GERD) and constipation has not yet been examined in Japan. We herein analyzed the use of laxatives by GERD and non-GERD patients to clarify the relationship between GERD and constipation. METHODS This was a retrospective observational study designed to examine the use of laxatives by GERD and non-GERD patients. A total of 118 patients (mean age 69.7 years, 50 males) with reflux esophagitis (RE) and non-erosive reflux disease (NERD) who received maintenance acid-suppressive therapy for more than 1 year were included in the GERD group (83 RE patients, 35NERD patients). Similarly, 61 patients (mean age 69.4 years, 28 males) who received regular acid-suppressive therapy for reasons other than GERD were included in the non-GERD group. We also investigated demographic factors associated with the onset of GERD, including body mass index (BMI), age, and sex. RESULTS The frequency of laxative use was significantly higher in the GERD group (38.1%) than in the non-GERD group (21.3%). No significant differences were observed in dose frequencies between the groups. The type of laxative used also did not significantly differ between the groups. Furthermore, no significant differences were noted in sex, age, or BMI between the groups. CONCLUSIONS The use of laxatives was significantly more common in GERD patients than in non-GERD patients. The present results suggest that a relationship exists between GERD and constipation.
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Affiliation(s)
- Eri Momma
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Mai Koeda
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Tomohide Tanabe
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Tetsuro Kawagoe
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Atsushi Tatsuguchi
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Mitsuru Kaise
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
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Futagami S, Yamawaki H, Agawa S, Higuchi K, Ikeda G, Noda H, Kirita K, Akimoto T, Wakabayashi M, Sakasegawa N, Kodaka Y, Ueki N, Kawagoe T, Iwakiri K. New classification Rome IV functional dyspepsia and subtypes. Transl Gastroenterol Hepatol 2018; 3:70. [PMID: 30363705 PMCID: PMC6182037 DOI: 10.21037/tgh.2018.09.12] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 09/10/2018] [Indexed: 12/24/2022] Open
Affiliation(s)
- Seiji Futagami
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Hiroshi Yamawaki
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Shuhei Agawa
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Kazutoshi Higuchi
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Go Ikeda
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Hiroto Noda
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Kumiko Kirita
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Teppei Akimoto
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Mako Wakabayashi
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Noriko Sakasegawa
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Yasuhiro Kodaka
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Nobue Ueki
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Tetsuro Kawagoe
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Katsuhiko Iwakiri
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
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Shibuya H, Hijioka S, Sakamoto Y, Ito T, Ueda K, Komoto I, Kobayashi N, Kudo A, Yasuda H, Miyake H, Arita J, Kiritani S, Ikeda M, Imaoka H, Ueno M, Kobayashi S, Furuta M, Nagashio Y, Murohisa G, Aoki T, Matsumoto S, Motoya M, Azemoto N, Itakura J, Horiguchi S, Yogi T, Kawagoe T, Miyaoka Y, Imamura F, Senju M, Arioka H, Hara K, Imamura M, Okusaka T. Multi-center clinical evaluation of streptozocin-based chemotherapy for advanced pancreatic neuroendocrine tumors in Japan: focus on weekly regimens and monotherapy. Cancer Chemother Pharmacol 2018; 82:661-668. [DOI: 10.1007/s00280-018-3656-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/23/2018] [Indexed: 12/31/2022]
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Kodaka Y, Futagami S, Tatsuguchi A, Yamawaki H, Sato H, Hashimoto S, Kawagoe T, Ueki N, Nagoya H, Maruki Y, Miyake K, Gudis K, Sakamoto C, Iwakiri K. Impact of Cyclooxygenase-2 1195 G-Carrier Genotype Associated with Intestinal Metaplasia and Endoscopic Findings Based on Kyoto Classification. Digestion 2018; 96:173-183. [PMID: 28946145 DOI: 10.1159/000479864] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 07/28/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIMS We aimed to clarify whether cyclooxygenase-2 (COX-2) and microsomal prostaglandin E synthase-1 (mPGES-1) genotypes were associated with certain histological findings and endoscopical appearances based on Kyoto classification. METHODS We enrolled 285 Helicobacter pylori-infected gastritis patients. Genotypes of COX-2 1195, COX-2 1290, mPGES-1, interleukin-1β (IL-1β) 511 and tumour necrosis factor-α (TNF-α) 308 were analyzed. Genotyping was performed by polymerase chain reaction. Endoscopic appearances and histological assessment were determined by using Kyoto classification, operative link on gastritic intestinal metaplasia assessment and the updated Sydney system. RESULTS There was a significant (p = 0.027) relationship between the IL-1β 511 C-carrier and histological gastric inflammation in H. pylori-infected gastritis patients. There was a significant (p = 0.009) correlation between the COX-2 1195 G-carrier genotype and histological intestinal metaplasia in the gastric antrum of H. pylori-infected gastritis patients and gastric xanthoma (p = 0.027). The COX-2 1195 G-carrier genotype was also significantly (p = 0.038) associated with the score of endoscopic intestinal metaplasia based on Kyoto classification. The mPGES-1 genotype was significantly (p = 0.002) associated with endoscopic swelling of area. CONCLUSION Our results suggest that in Japan, there exists a significant correlation between the COX-2 1195 G-carrier genotype and intestinal metaplasia in histological and endoscopic findings based on Kyoto classification in H. pylori-infected gastric mucosa.
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Affiliation(s)
- Yasuhiro Kodaka
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Tokyo, Japan
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7
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Ueki N, Futagami S, Akimoto T, Maruki Y, Yamawaki H, Kodaka Y, Nagoya H, Shindo T, Kusunoki M, Kawagoe T, Gudis K, Miyake K, Iwakiri K. Effect of Antithrombotic Therapy and Long Endoscopic Submucosal Dissection Procedure Time on Early and Delayed Postoperative Bleeding. Digestion 2018; 96:21-28. [PMID: 28609771 DOI: 10.1159/000475924] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 11/07/2016] [Accepted: 04/21/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Recent updated guidelines of the Japanese Society of Gastroenterology recommend the use of a single dose of antiplatelet agents in patients undergoing endoscopic submucosal dissection (ESD). However, the postoperative bleeding risk after gastric ESD associated with the continuation or interruption of antithrombotic therapy remains controversial. We aimed to evaluate whether certain factors including interrupted antithrombotic therapy could affect early and delayed post-ESD bleeding risk. METHODS Three hundred sixty-four patients with gastric neoplasms were treated with ESD at our hospital between October 2005 and December 2012. Seventy-four patients with interrupted antithrombotic therapy were undertaken with ESD. Early and delayed postoperative bleeding patterns were estimated. Various clinical characteristics such as gender, age, tumor location, tumor size, ESD procedure time, platelet count, and comorbidity were evaluated. RESULTS There was a significant difference (p = 0.042) in the ESD procedure time between the patients with postoperative bleeding and those without it. There was no significant difference in postoperative bleeding between the patients on antithrombotic therapy and not on it. Moreover, interrupted antithrombotic therapy and platelet count were significantly (p = 0.0461 and p = 0.0059, respectively) associated with early postoperative bleeding in multivariate analysis. In addition, in univariate analysis, ESD procedure time was significantly (p = 0.041) associated with delayed postoperative bleeding. CONCLUSIONS Antithrombotic therapy and prolonged ESD procedure time were significantly associated with early and delayed postoperative bleeding, respectively.
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Affiliation(s)
- Nobue Ueki
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Tokyo, Japan
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Sho T, Hachisuga T, Koi C, Kurita T, Kagami S, Kawagoe T, Matsuura Y, Yoshimura K, Hisaoka M. 17β-Estradiol induces proliferation of endometrial NK cells (CD56+) in postmenopausal women. Climacteric 2017; 20:571-576. [PMID: 28933961 DOI: 10.1080/13697137.2017.1377173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The aim of this report was to evaluate the impact of hormone replacement therapy (HRT) on lymphocytic infiltration of the endometrium in postmenopausal women. METHOD This study included 58 Japanese patients who had undergone hysterectomy at the University Hospital of Occupational and Environmental Health, Japan. Before surgery, nine patients had received 17β-estradiol (E2), 0.72 mg transdermally for 2-8 weeks (E2 group); 16 patients had received an Estra-1,3,5(10)-triene-3,16α, 17β-triol (E3) vaginal tablet 0.5 mg per month five times (E3 group); and 19 patients had received 17β-estradiol, 0.62 mg, and norethindrone acetate (P), 2.70 mg for 3-16 weeks (E2 + P group). Fourteen patients received no HRT (control group). We examined uterine tissue specimens immunohistochemically for CD45+, CD3+, CD4+, CD8+, CD20+, CD56+, and Ki67 antigen-positive cells. RESULTS The numbers of CD56 + cells were significantly increased in the E2 group compared with all other groups (E2 vs. E3: 7.0 vs. 0.75, p = 0.017; E2 vs. E2 + P: 7.0 vs. 0.58, p = 0.009; E2 vs. CONTROL 7.0 vs. 0.43, p = 0.010). The numbers of CD3+ cells were significantly increased in the E2 group compared with the control group (149.3 vs. 42.6, p = 0.008). CONCLUSION 17β-Estradiol induced the proliferation of endometrial uterine natural killer cells (CD56+) in postmenopausal women.
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Affiliation(s)
- T Sho
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - T Hachisuga
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - C Koi
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - T Kurita
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - S Kagami
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - T Kawagoe
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Y Matsuura
- a Department of Obstetrics and Gynecology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - K Yoshimura
- b Department of Obstetrics and Gynecology , Wakamatsu Hospital of the University of Occupational and Environmental Health , Kitakyushu , Japan
| | - M Hisaoka
- c Department of Pathology and Oncology , University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
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Hashimoto S, Futagami S, Yamawaki H, Kaneko K, Kodaka Y, Wakabayashi M, Sakasegawa N, Agawa S, Higuchi K, Akimoto T, Ueki N, Kawagoe T, Sato H, Nakatsuka K, Gudis K, Kawamoto C, Akamizu T, Sakamoto C, Iwakiri K. Epigastric pain syndrome accompanying pancreatic enzyme abnormalities was overlapped with early chronic pancreatitis using endosonography. J Clin Biochem Nutr 2017; 61:140-145. [PMID: 28955132 PMCID: PMC5612821 DOI: 10.3164/jcbn.17-41] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 04/30/2017] [Accepted: 06/12/2017] [Indexed: 12/29/2022] Open
Abstract
There was not available data about the overlap between functional dyspepsia (FD) and pancreatic diseases. We aimed to determine whether epigastric pain syndrome (EPS) accompanying with pancreatic enzyme abnormalities were associated with early chronic pancreatitis proposed by Japan Pancreas Society (JPS) using endosonography. We enrolled 99 consecutive patients presenting with typical symptoms of FD, including patients with postprandial distress syndrome (PDS) (n = 59), EPS with pancreatic enzyme abnormalities (n = 41) and EPS without pancreatic enzyme abnormalities (n = 42) based on Rome III criteria. Gastric motility was evaluated using the 13C-acetate breath test. Early chronic pancreatitis was detected by endosonography and graded from 0 to 7. The ratio of female patients among EPS patients (34/41) with pancreatic enzyme abnormalities was significantly (p = 0.0018) higher than the ratio of female EPS patients (20/42) without it. Postprandial abdominal distention and physical component summary (PCS) scores in EPS patients with pancreatic enzyme abnormalities were significantly disturbed compared to those in EPS patients without it. Interestingly, AUC5 and AUC15 values (24.85 ± 1.31 and 56.11 ± 2.51, respectively) in EPS patients with pancreatic enzyme abnormalities were also significantly (p = 0.002 and p = 0.001, respectively) increased compared to those (19.75 ± 1.01 and 47.02 ± 1.99, respectively) in EPS patients without it. Overall, 64% of EPS patients with pancreatic enzyme abnormalities were diagnosed by endosonography as having concomitant early chronic pancreatitis proposed by JPS. Further studies are warranted to clarify how EPS patients with pancreatic enzyme abnormalities were associated with early chronic pancreatitis proposed by JPS.
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Affiliation(s)
- Satomi Hashimoto
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Seiji Futagami
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Hiroshi Yamawaki
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Keiko Kaneko
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Yasuhiro Kodaka
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Mako Wakabayashi
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Noriko Sakasegawa
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Shuhei Agawa
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Kazutoshi Higuchi
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Teppei Akimoto
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Nobue Ueki
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Tetsuro Kawagoe
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Hitomi Sato
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Katsuhisa Nakatsuka
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Kaya Gudis
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Chiaki Kawamoto
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Takashi Akamizu
- The First Department of Medicine, Wakayama Medical Unversity, 811-1 Kimiidera, Wakayama 641-8509, Japan
| | - Choitsu Sakamoto
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Katsuhiko Iwakiri
- Division of Gastroenterology, Nippon Medical School Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
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Nishikawa M, Munakata K, Takeishi T, Baba A, Kawagoe T, Beloglazov S, Nakashima N, Hashimoto K, Yokoyama, Okuno K, Morimoto Y, Moriyama H, Kawamoto K. Out-Pile Tritium Release Experiment from Various Ceramic Breeder Materials in KUR. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a22739] [Citation(s) in RCA: 2] [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: 11/12/2022]
Affiliation(s)
- M. Nishikawa
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - K. Munakata
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - T. Takeishi
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - A. Baba
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - T. Kawagoe
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - S. Beloglazov
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - N. Nakashima
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - K. Hashimoto
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - Yokoyama
- Kyushu University, Graduate School of Engineering Science, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN
| | - K. Okuno
- Shizuoka University, Faculty of Science, 836 Ogaya, Shizuoka 422-8529, JAPAN
| | - Y. Morimoto
- Shizuoka University, Faculty of Science, 836 Ogaya, Shizuoka 422-8529, JAPAN
| | - H. Moriyama
- Kyoto University Research Reactor Institute, Kumatori, Sennann, Osaka 590-0496, JAPAN
| | - K. Kawamoto
- Kyoto University Research Reactor Institute, Kumatori, Sennann, Osaka 590-0496, JAPAN
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Hoshino S, Kawami N, Takenouchi N, Umezawa M, Hanada Y, Hoshikawa Y, Kawagoe T, Sano H, Hoshihara Y, Nomura T, Iwakiri K. Efficacy of Vonoprazan for Proton Pump Inhibitor-Resistant Reflux Esophagitis. Digestion 2017; 95:156-161. [PMID: 28190016 DOI: 10.1159/000456072] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/13/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Vonoprazan (VPZ) is a novel potassium-competitive acid blocker that may be clinically beneficial for proton pump inhibitor (PPI)-resistant reflux esophagitis (RE). The aim of this study was to investigate the efficacies of VPZ therapy at 20 mg for 4 weeks in patients with PPI-resistant RE and VPZ maintenance therapy at 10 mg for 8 weeks in patients who have been successfully treated. METHODS Subjects comprised 24 patients with PPI-resistant RE (Los Angeles classification grade A/B/C/D: 3/7/11/3). After confirming PPI-resistant RE by endoscopy, 20 mg VPZ was administered. Endoscopy was performed 4 weeks after the initiation of VPZ. Symptoms were evaluated using the frequency scale for the symptoms of gastroesophageal reflux disease (FSSG). Maintenance therapy with 10 mg VPZ was performed and endoscopy was conducted after 8 weeks. RESULTS In 21 (87.5%) out of 24 patients, esophageal mucosal breaks were successfully treated by 20 mg VPZ. The median FSSG score was significantly lower on days 1-7, 14, and 28 after the initiation of VPZ than before its administration. Maintenance therapy with 10 mg VPZ prevented the relapse of esophageal mucosal breaks in 16 (76.2%) out of 21 patients. CONCLUSION VPZ was effective for most patients with PPI-resistant RE.
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Affiliation(s)
- Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
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12
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Kawagoe T, Maruki Y, Nagoya H, Kosugi Y, Akimoto T, Yamawaki H, Kodaka Y, Shimpuku M, Ueki N, Futagami S, Miyake K, Iwakiri K. Clinical Complete Response from Chemotherapy in an Elderly Patient with Metastatic Gastric Cancer: A Case Report. J NIPPON MED SCH 2017; 83:199-202. [PMID: 27890894 DOI: 10.1272/jnms.83.199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
An 81-year-old man was admitted with upper abdominal pain and weight loss. Esophagogastroduodenoscopy revealed a large tumor located from the gastric angle to the body. Histological analysis of a biopsy revealed a moderately differentiated adenocarcinoma. Computed tomography revealed metastases in the liver and lung and the patient was subsequently diagnosed with metastatic advanced gastric cancer. He was treated with chemotherapy using S-1 (80 mg/m2) and cisplatin (CDDP) (60 mg/m2). Twenty-two months after chemotherapy, the gastric tumor, and the nodules in the liver and lung, had disappeared. We subsequently diagnosed a clinical complete response. The patient was treated with further S-1 monotherapy for 7 months after complete response assessment. He has lived for more than 7 years since the initial diagnosis without recurrence. Chemotherapy using S-1 and CDDP may be a potent strategy for improving survival in elderly patients with advanced gastric cancer.
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Affiliation(s)
- Tetsuro Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
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13
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Yamada T, Kan H, Iwai T, Takahashi G, Koizumi M, Matsuda A, Shinji S, Yokoyama Y, Tatsguchi A, Kawagoe T, Kitano S, Nakayama M, Matsumoto S, Ohta K, Uchida E. Abstract 3135: Prediction of acquired resistance in colorectal cancer patients treated with EGFR blockade by detection of a new KRAS mutation in ccfDNA. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-3135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Oncogenic KRAS mutations can be used to predict a lack of response to epidermal growth factor receptor (EGFR) blockade. KRAS status is usually determined by biopsy from the primary site of colorectal cancer (CRC). However, the genomic profiles of primary tumors and metastases are not always concordant because of intrinsic molecular heterogeneity. Furthermore, chemotherapeutic agents and targeted drugs can alter the tumor molecular landscape. We exploited circulating tumor DNA (ctDNA) to genotype colorectal tumors and track clonal evolution during treatment involving EGFR blockade. To account for these spatial and temporal changes, the genomic profiles of patients with CRC can be repeatedly evaluated during the course of therapy. In this study, we evaluated the utility of KRAS mutation detection using ctDNA before and during chemotherapy.
Method: Experiment 1: We enrolled 46 metastatic colorectal cancer patients. Before starting chemotherapy, ctDNA was purified from 1 mL serum using the QIAamp circulating nucleic acid kit. We detected nine KRAS (G12A, G12R, G12D, G12C, G12S, G12V, G13D, Q61H, and Q61R) mutations using the Invader method and digital PCR. Experiment 2: Fifteen patients were treated with systemic chemotherapy including EGFR blockade. ctDNA was extracted from these patients every 2 months until disease progression, and the KRAS mutation was detected in nine.
Results: Experiment 1: KRAS mutations in circulating tumor DNA were detected in 88% (14/16) of patients with KRAS mutations in their primary tumor, but in 10% (10/30) of patients without KRAS mutations in their primary tumors. Experiment 2: The response rate was 87% (13/15). In two non-responders, KRAS mutations in ctDNA were detected before chemotherapy. Disease progression was identified in five patients and KRAS mutations in ctDNA were detected in all patients; the five patients with disease progression included the two non-responders in whom KRAS mutations in ctDNA were detected before chemotherapy. However, the genotypes detected after disease progression were different from those detected before chemotherapy (G13D to G12C and Q61R to Q61H). New KRAS mutations occurred in codon 12 in the other three patients in whom no KRAS mutations in ctDNA were detected before chemotherapy. New KRAS mutations in codon 61 disappeared during chemotherapy and disease progression was not detected at that time in two patients.
Discussion: It has been reported in a retrospective study that new KRAS mutations were detected in patients who acquired resistance to EFGR blockade, and many of them were in codon 61. However, new KRAS mutations in codon61 can disappear during treatment involving EGFR blockade. This phenomenon may indicate that new KRAS mutations in ctDNA do not always indicate acquired resistance to chemotherapy involving EGFR blockade.
Citation Format: Takeshi Yamada, Hayato Kan, Takuma Iwai, Goro Takahashi, Michihiro Koizumi, Akihisa Matsuda, Seiichi Shinji, Yasuyuki Yokoyama, Atsushi Tatsguchi, Tetsuro Kawagoe, Shiro Kitano, Masato Nakayama, Satoshi Matsumoto, Keiichiro Ohta, Eiji Uchida. Prediction of acquired resistance in colorectal cancer patients treated with EGFR blockade by detection of a new KRAS mutation in ccfDNA. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 3135.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Shiro Kitano
- 2Technical Research Institute, Toppan Printing Co., Tokyo, Japan
| | - Masato Nakayama
- 2Technical Research Institute, Toppan Printing Co., Tokyo, Japan
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Yamawaki H, Futagami S, Kawagoe T, Maruki Y, Hashimoto S, Nagoya H, Sato H, Kodaka Y, Gudis K, Akamizu T, Sakamoto C, Iwakiri K. Improvement of meal-related symptoms and epigastric pain in patients with functional dyspepsia treated with acotiamide was associated with acylated ghrelin levels in Japan. Neurogastroenterol Motil 2016; 28:1037-47. [PMID: 26920949 DOI: 10.1111/nmo.12805] [Citation(s) in RCA: 12] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 01/25/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND The aim of this study is to clarify whether acotiamide and rabeprazole combination therapy can improve clinical symptoms, gastric emptying, and satisfaction with treatment in functional dyspepsia (FD) patients more effectively than acotiamide or rabeprazole monotherapy alone. We also aimed to determine whether acotiamide affects these changes via its effect on gastric emptying and appetite-related hormones such as ghrelin. METHODS We used Rome III criteria to evaluate upper abdominal symptoms and anxiety by the State-Trait Anxiety Inventory (STAI). Gastric motility was evaluated by the (13) C-acetate breath test. Eighty-one FD patients were treated with acotiamide (300 mg/day) (n = 35), acotiamide (300 mg/day) and rabeprazole (10 mg/day) (n = 28), or rabeprazole (10 mg/day) (n = 18) for a period of 4 weeks and followed after 4 weeks of no treatment. Adenocorticotropic hormone (ACTH), cortisol, leptin and ghrelin levels were measured in all FD patients. KEY RESULTS Acotiamide and rabeprazole combination therapy significantly improved postprandial distress syndrome (PDS)-like symptoms (p = 0.018, p = 0.04 and p = 0.041, respectively) and epigastric pain (p = 0.024) as wells as STAI-state scores (p = 0.04) compared to rabeprazole monotherapy. Both acotiamide monotherapy, and acotiamide taken in combination with rabeprazole, significantly (p = 0.001 and p = 0.02, respectively) improved satisfaction with treatment, compared to rabeprazole monotherapy. Acotiamide and rabeprazole combination therapy had no significant effect on ACTH and cortisol levels in FD patients. Of interest, acotiamide monotherapy, and acotiamide and rabeprazole combination therapy, significantly (p < 0.0001 and p = 0.018, respectively) increased acylated ghrelin/total ghrelin ratios and significantly (p = 0.04) improved impaired gastric emptying compared to rabeprazole monotherapy. CONCLUSIONS & INFERENCES Further studies are warranted to clarify how acotiamide treatment improves clinical symptoms in FD patients.
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Affiliation(s)
- H Yamawaki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - S Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Y Maruki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - S Hashimoto
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - H Nagoya
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - H Sato
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Y Kodaka
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - K Gudis
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Akamizu
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - C Sakamoto
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - K Iwakiri
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
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Miyake K, Akimoto T, Hanada Y, Nagoya H, Kodaka Y, Ueki N, Kusunoki M, Kawagoe T, Futagami S, Takahashi Y, Takano H, Sakamoto C. Proton pump inhibitors are associated with lower gastrointestinal tract bleeding in low-dose aspirin users with ischaemic heart disease. Dig Liver Dis 2015; 47:757-62. [PMID: 26105589 DOI: 10.1016/j.dld.2015.05.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 05/21/2015] [Accepted: 05/26/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Impact of acid suppressants on lower gastrointestinal bleeding remains unclear in low-dose aspirin users; we aimed to investigate this relationship. METHODS Retrospective cohort study of low-dose aspirin users who underwent coronary angiography for ischaemic heart disease in our institution between October 2005 and December 2006; patients were evaluated for upper or lower gastrointestinal bleedings within 3 years post-angiography. RESULTS 538 patients were enrolled (males, 74.4%; mean age 67.4±10.6 years). Risk for upper gastrointestinal bleeding decreased with concomitant use of statins (HR, 0.37; 95% CI, 0.15-0.89), calcium channel blockers (HR, 0.29; 95% CI, 0.10-0.85), and histamine-2 receptor antagonists (HR, 0.26; 95% CI, 0.08-0.89). Concomitant use of proton pump inhibitors tended to decrease risk of upper gastrointestinal bleeding (HR, 0.27; 95% CI, 0.06-1.18). Risk for lower gastrointestinal bleeding increased with both concomitant use of warfarin (HR, 15.68; 95% CI, 4.43-55.53) and proton pump inhibitors (HR, 6.55; 95% CI, 2.01-21.32), but not with histamine-2 receptor antagonists. Hyperuricemia lowered risk for lower gastrointestinal bleeding (HR, 0.12; 95% CI, 0.02-0.88). CONCLUSIONS In low-dose aspirin users, concomitant use of proton pump inhibitors increased lower gastrointestinal bleeding risk, independent from effects on upper gastrointestinal bleeding.
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Affiliation(s)
- Kazumasa Miyake
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan.
| | - Teppei Akimoto
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | - Yuriko Hanada
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | - Hiroyuki Nagoya
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | - Yasuhiro Kodaka
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | - Nobue Ueki
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | | | - Tetsuro Kawagoe
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | - Seiji Futagami
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
| | | | - Hitoshi Takano
- Department of Cardiology, Nippon Medical School, Tokyo, Japan
| | - Choitsu Sakamoto
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan
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16
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Yamawaki H, Futagami S, Shimpuku M, Shindo T, Maruki Y, Nagoya H, Kodaka Y, Sato H, Gudis K, Kawagoe T, Sakamoto C. Leu72Met408 Polymorphism of the Ghrelin Gene Is Associated With Early Phase of Gastric Emptying in the Patients With Functional Dyspepsia in Japan. J Neurogastroenterol Motil 2015; 21:93-102. [PMID: 25540946 PMCID: PMC4288091 DOI: 10.5056/jnm14086] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 09/11/2014] [Accepted: 09/13/2014] [Indexed: 12/11/2022] Open
Abstract
Background/Aims There are no available data about the relationship between ghrelin gene genotypes and early phase of gastric emptying in functional dyspepsia (FD) as defined by Rome III classification. Methods We enrolled 74 patients presenting with typical symptoms of FD and 64 healthy volunteers. Gastric motility was evaluated using the 13C-acetate breath test. We used Rome III criteria to evaluate upper abdominal symptoms and self-rating questionnaires for depression (SRQ-D) scores to determine status of depression. The Arg51Gln (346G>A), preproghrelin (3056T>C), Leu72Met (408C>A), Gln90Leu (3412T>A) and G-protein β3 (825C>T) polymorphisms were analyzed in the DNA from blood samples of enrolled subjects. Genotyping was performed by polymerase chain reaction. Results There was a significant relationship between the Gln90Leu3412 genotype and SRQ-D score in FD patients (P = 0.009). Area under the curve at 15 minutes (AUC15) value was significantly associated with the Leu72Met408 genotype (P = 0.015) but not with entire gastric emptying. Conclusions The Leu72Met (408C>A) single nucleotide polymorphism was significantly associated with early phase of gastric emptying in FD patients. Further studies will be necessary to clarify the association between ghrelin gene single nucleotide polymorphisms and early phase of gastric emptying in FD patients.
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Affiliation(s)
- Hiroshi Yamawaki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Mayumi Shimpuku
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Tomotaka Shindo
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Yuuta Maruki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Hiroyuki Nagoya
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Yasuhiro Kodaka
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Hitomi Sato
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Katya Gudis
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Tetsuro Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Choitsu Sakamoto
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Sendagi, Tokyo, Japan
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Shimpuku M, Futagami S, Tajima N, Yamawaki H, Maruki Y, Kodaka Y, Nagoya H, Gudis K, Kawagoe T, Sakamoto C. Impact of eating attitude and impairment of physical quality of life between tertiary clinic and primary clinic functional dyspepsia outpatients in Japan. J Neurogastroenterol Motil 2014; 20:506-15. [PMID: 25273121 PMCID: PMC4204414 DOI: 10.5056/jnm14015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 05/23/2014] [Accepted: 05/25/2014] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND/AIMS There is no available data on factors associated with healthcare-seeking behavior for functional dyspepsia (FD) symptoms at ei-ther tertiary or primary clinics in Japan. Therefore, we aimed to compare clinical symptoms and life styles such as sleep dis-orders and eating attitude in FD patients visiting general practitioners at primary clinics with those consulting gastro-enterologists at tertiary clinics to clarify healthcare-seeking patterns in Japanese patients. METHODS Fifty-one FD outpatients in a tertiary clinic (college hospital), 50 FD outpatients visiting primary clinics and 50 healthy volunteers were enrolled. Clinical symptoms, quality of life, sleep disorders, eating attitude and anxiety were estimated using the Gastroin-testinal Symptom Rating Scale (GSRS), Social Functioning-8 (SF-8) test, Pittsburg Sleep Quality Index (PSQI) test and State-Trait Anxiety Inventory (STAI) for FD outpatients and healthy volunteers. RESULTS FD outpatients exhibited higher mean scores of GSRS than healthy volunteers. The SF-8 physical component summary scores in the tertiary clinic group were significantly lower than those in the primary clinic group. GSRS scores were significantly (P < 0.001, P = 0.002) associated with global PSQI scores in FD outpatients as well as with STAI-trait scores (P = 0.006, P = 0.001) compared to healthy volunteers. The frequency of eating between meals in the primary clinic group was significantly (P < 0.05) higher than that in the tertiary clinic group. CONCLUSIONS It may be important for clarification of healthcare-seeking behavior to determine the difference in both impairment of physical quality of life and eating attitudes between tertiary clinic and primary clinic FD outpatients in Japan.(J Neurogastroenterol Motil 2014;20:506-515).
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Affiliation(s)
- Mayumi Shimpuku
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | | | - Hiroshi Yamawaki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Yuuta Maruki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Yasuhiro Kodaka
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Hiroyuki Nagoya
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Katya Gudis
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Tetsuro Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Choitsu Sakamoto
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
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Miyake K, Akimoto T, Kusakabe M, Sato W, Yamada A, Yamawaki H, Kodaka Y, Shinpuku M, Nagoya H, Shindo T, Ueki N, Kusunoki M, Kawagoe T, Futagami S, Tsukui T, Sakamoto C. Water-soluble vitamin deficiencies in complicated peptic ulcer patients soon after ulcer onset in Japan. J Nutr Sci Vitaminol (Tokyo) 2014; 59:503-8. [PMID: 24477246 DOI: 10.3177/jnsv.59.503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We investigated over time whether contemporary Japanese patients with complicated peptic ulcers have any water-soluble vitamin deficiencies soon after the onset of the complicated peptic ulcers. In this prospective cohort study, fasting serum levels of water-soluble vitamins (vitamins B1, B2, B6, B12, C, and folic acid) and homocysteine were measured at 3 time points (at admission, hospital discharge, and 3 mo after hospital discharge). Among the 20 patients who were enrolled in the study, 10 consecutive patients who completed measurements at all 3 time points were analyzed. The proportion of patients in whom any of the serum water-soluble vitamins that we examined were deficient was as high as 80% at admission, and remained at 70% at discharge. The proportion of patients with vitamin B6 deficiency was significantly higher at admission and discharge (50% and 60%, respectively, p<0.05) than at 3 mo after discharge (10%). In conclusion, most patients with complicated peptic ulcers may have a deficiency of one or more water-soluble vitamins in the early phase of the disease after the onset of ulcer complications, even in a contemporary Japanese population.
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Yoshioka M, Shinji S, Kan H, Yamada T, Koizumi M, Takata H, Kawagoe T, Mitsui K, Matsuda Y, Uchida E. [A case of multiple primary small intestinal adenocarcinomas]. Nihon Shokakibyo Gakkai Zasshi 2014; 111:1594-1601. [PMID: 25100349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A 62-year-old woman, with a past history of long-term non-steroidal anti-inflammatory drug use and gastric ulcer, was hospitalized for intestinal obstruction in April 2012. Two stenoses were identified in the ileum in association with small intestinal ulcers, and she underwent partial resection of the small intestine. Histologically, the two lesions were poorly differentiated adenocarcinomas; metastatic small intestinal cancer was suspected, but whole body examination revealed no other lesions. The final diagnosis was multiple primary small intestinal malignancies, necessitating additional resection of the small intestine in July. We report this case to raise awareness among physicians of the possibility of primary small intestinal cancer in patients with multiple small intestinal stenoses.
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Affiliation(s)
- Masafumi Yoshioka
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School
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Futagami S, Yamawaki H, Shimpuku M, Izumi N, Wakabayashi T, Kodaka Y, Nagoya H, Shindo T, Kawagoe T, Sakamoto C. Impact of coexisting irritable bowel syndrome and non-erosive reflux disease on postprandial abdominal fullness and sleep disorders in functional dyspepsia. J NIPPON MED SCH 2014; 80:362-70. [PMID: 24189354 DOI: 10.1272/jnms.80.362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS The association between clinical symptoms and sleep disorders in functional dyspepsia (FD)-overlap syndrome has not been studied in detail. METHODS The subjects were 139 patients with FD, 14 with irritable bowel syndrome (IBS), 12 with nonerosive reflux disease (NERD), and 41 healthy volunteers. Gastric motility was evaluated with the (13)C-acetate breath test. We used Rome III criteria to evaluate upper abdominal symptoms, and Self-Rating Questionnaire for Depression (SRQ-D) scores to determine depression status. Sleep disorders were evaluated with Pittsburgh Sleep Quality Index (PSQI) scores. RESULTS There were no significant differences in age, body-mass index, alcohol intake, and smoking rate between patients with FD alone and those with FD-overlap syndrome. The postprandial abdominal fullness score in patients with FD-NERD-IBS was significantly greater than that in patients with FD-NERD overlap syndrome (p<0.001) or FD alone (p<0.001). The score for the feeling of hunger in patients with FD-NERD-IBS was significantly greater than that in patients with FD alone (p=0.0025), FD-NERD overlap syndrome (p=0.0088), or FD-IBS overlap syndrome (p=0.0057). The heartburn score in subjects with FD-NERD-IBS overlap syndrome was significantly greater than that in subjects with FD alone (p=0.0035) or FD-IBS overlap syndrome (p=0.0026). The Tmax in patients with FD-overlap syndrome or FD alone was significantly higher than that in healthy volunteers. The Pittsburgh Sleep Quality Index score in subjects with FD-NERD-IBS overlap syndrome was significantly greater than that in subjects with FD alone. CONCLUSION Symptom scores, such as those for postprandial abdominal fullness, heartburn, and the feeling of hunger, in patients with FD-overlap syndromes are significantly greater than those in patients with FD alone. Further studies are necessary to clarify whether various symptoms are related to sleep disorders in patients with FD-NERD-IBS overlap syndrome.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School
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Futagami S, Shimpuku M, Yamawaki H, Izumi N, Kodaka Y, Nagoya H, Wakabayashi T, Shindo T, Kawagoe T, Sakamoto C. Sleep disorders in functional dyspepsia and future therapy. J NIPPON MED SCH 2014; 80:104-9. [PMID: 23657063 DOI: 10.1272/jnms.80.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Sleep disorder is a common medical problem. Sleep disorder has been associated with several diseases, including pulmonary disease, gastroesophageal reflux disease (GERD) and fibromyalgia. Interest in sleep phenomenology and gastrointestinal functioning has recently increased, because sleep disorder causes significant morbidity, as evidenced by the increased need for general medical and mental health treatment for emotional problems. A number of studies have found an association between sleep disorders and functional gastrointestinal (GI) disorders. Although arousal from sleep serves several protective roles, such as increase in the speed of esophageal clearance and in airway refluxes to prevent aspiration, awakening from sleep unfortunately induces impairment of sleep quality. Some investigations about the relationship between psychogenic factors and gut motility are controversial. In addition, reports of alterations in gut motility during sleep have also been contradictory. We have evaluated sleep disorder in functional dyspepsia (FD) patients using Pittsburgh Sleep Quality Index (PSQI) score. In our recent data, PSQI score of FD patients was significantly higher compared to that in healthy volunteers. Another study has reported that the distribution of subjects who thought that they got enough sleep was significantly lower for the FD/irritable bowel syndrome (IBS) subjects than for control subjects. Several studies have reported that anti-acid therapy and prokinetic agents are effective for certain FD patients. In addition, previous study has reported tricyclic antidepressants (TCA) drugs are effective for some FD patients. Finally, new drug, actiamide, a muscarinic antagonist and cholinesterase inhibitor, significantly improves Postprandial Distress Syndrome (PDS) symptoms. It might be critical issues for determination of precise mechanism for functional gastrointestinal disorders to clarify the relationship between gut motility and sleep disorders.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
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Nagoya H, Futagami S, Shimpuku M, Tatsuguchi A, Wakabayashi T, Yamawaki H, Kodaka Y, Kawagoe T, Watarai Y, Makino H, Miyashita M, Tsuchiya S, Crowe SE, Sakamoto C. Apurinic/apyrimidinic endonuclease-1 is associated with angiogenesis and VEGF production via upregulation of COX-2 expression in esophageal cancer tissues. Am J Physiol Gastrointest Liver Physiol 2014; 306:G183-90. [PMID: 24284961 PMCID: PMC5142390 DOI: 10.1152/ajpgi.00057.2013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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] [Indexed: 01/31/2023]
Abstract
Apurinic/apyrimidinic endonuclease-1 (APE-1) is a key enzyme responsible for DNA base excision repair and is also a multifunctional protein such as redox effector for several transcriptional factors. Our study was designed to investigate APE-1 expression and to study its interaction with cyclooxygenase (COX)-2 expression and VEGF production in the esophageal cancer. The expression of APE-1, COX-2, monocyte chemoattractant protein (MCP)-1, CC-chemokine receptor (CCR)2, and VEGF were evaluated by immunohistochemistry in 65 human esophageal squamous cell carcinoma (ESCC) tissues. Real-time PCR and Western blotting were performed to detect mRNA and protein expression of APE-1 and p-signal transducer and activator of transcription 3 (STAT3) expression in MCP-1-stimulated ESCC cell lines (KYSE 220 and EC-GI-10). siRNA for APE-1 was treated to determine the role of APE-1 in the regulation of COX-2 expression, VEGF production, and antiapoptotic effect against cisplatin. In human ESCC tissues, nuclear localization of APE-1 was observed in 92.3% (60/65) of all tissues. There was a significant relationship (P = 0.029, R = 0.49) between nuclear APE-1 and cytoplasmic COX-2 expression levels in the esophageal cancer tissues. In KYSE 220 and EC-GI-10 cells, MCP-1 stimulation significantly increased mRNA and protein expression of APE-1. Treatment with siRNA for APE-1 significantly inhibited p-STAT3 expression levels in MCP-1-stimulated cells. Furthermore, treatment of siRNA for APE-1 significantly reduced COX-2 expression and VEGF production in MCP-1-stimulated esophageal cancer cell lines. Treatment with APE-1 siRNA significantly increased apoptotic levels in cisplatin-incubated KYSE 220 and EC-GI-10 cells. We concluded that APE-1 is overexpressed and associated with COX-2 expression and VEGF production in esophageal cancer tissues.
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Affiliation(s)
- Hiroyuki Nagoya
- 1Division of Gastroenterology, Department of Internal Medicine,
| | - Seiji Futagami
- 1Division of Gastroenterology, Department of Internal Medicine,
| | - Mayumi Shimpuku
- 1Division of Gastroenterology, Department of Internal Medicine,
| | | | | | | | - Yasuhiro Kodaka
- 1Division of Gastroenterology, Department of Internal Medicine,
| | - Tetsuro Kawagoe
- 1Division of Gastroenterology, Department of Internal Medicine,
| | | | - Hiroshi Makino
- 3Department of Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, Japan;
| | - Masao Miyashita
- 3Department of Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, Japan;
| | | | - Sheila E. Crowe
- 4Division of Gastroenterology, Department of Medicine, University of California, San Diego, California
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Yamawaki H, Futagami S, Shimpuku M, Sato H, Wakabayashi T, Maruki Y, Kodaka Y, Nagoya H, Shindo T, Kawagoe T, Sakamoto C. Impact of sleep disorders, quality of life and gastric emptying in distinct subtypes of functional dyspepsia in Japan. J Neurogastroenterol Motil 2013; 20:104-12. [PMID: 24466451 PMCID: PMC3895596 DOI: 10.5056/jnm.2014.20.1.104] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 10/23/2013] [Accepted: 10/30/2013] [Indexed: 12/14/2022] Open
Abstract
Background/Aims The association between clinical symptoms, gastric emptying, quality of life and sleep disorders in distinct functional dyspepsia (FD) patients has not been studied yet in detail. Methods We enrolled 79 FD patients (postprandial distress syndrome [PDS], n = 65; epigastric pain syndrome [EPS], n = 47; EPS-PDS overlap, n = 33) and 44 healthy volunteers. Gastric motility was evaluated. We used Rome III criteria to evaluate clinical symptoms and State-Trait Anxiety Inventory (STAI) scores to determine anxiety status. Sleep disorder was evaluated using the Pittsburgh Sleep Quality Index scores. Results There were no significant differences in age, sex and Helicobacter pylori positivity between FD subtypes and healthy volunteers. The scores of Glasgow dyspepsia severity scores (GDSS), SF-8 and Pittsburgh Sleep Quality Index (PSQI) in distinct subtypes of FD patients were significantly different from those in healthy volunteers. However, there were not significant differences in these scores, Tmax and T1/2 among 3 subtypes of FD patients. PSQI score was significantly (P = 0.027, P = 0.002 and P = 0.039, respectively) associated with GDSS among EPS, PDS and EPS-PDS overlap patients. In addition, 8-item short form health survey (SF-8; Physical Component Score and Mental Component Score) was significantly associated with global PSQI score in PDS and EPS-PDS overlap patients. In contrast, SF-8 (Mental Component Score) only was significantly linked to global PSQI score in EPS patients. Conclusions Prevalences for sleep disorders, gastric motility and quality of life in 3 subtypes of FD patients were similar levels. In PDS and EPS-PDS overlap patients, SF-8 was significantly associated with global PSQI score.
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Affiliation(s)
- Hiroshi Yamawaki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Mayumi Shimpuku
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Hitomi Sato
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Taiga Wakabayashi
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Yuuta Maruki
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Yasuhiro Kodaka
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Hiroyuki Nagoya
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Tomotaka Shindo
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Tetsuro Kawagoe
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Choitsu Sakamoto
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
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Takeuchi M, Kawagoe T, Meguro A, Ishigatsubo Y, Remmers E, Kastner D, Mizuki N. PW03-013 - Behçet's disease: genotype-phenotype correlations. Pediatr Rheumatol Online J 2013. [PMCID: PMC3952255 DOI: 10.1186/1546-0096-11-s1-a239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Futagami S, Yamawaki H, Izumi N, Shimpuku M, Kodaka Y, Wakabayashi T, Nagoya H, Shindo T, Kawagoe T, Gudis K, Itoh T, Sakamoto C. Impact of sleep disorders in Japanese patients with functional dyspepsia (FD): nizatidine improves clinical symptoms, gastric emptying and sleep disorders in FD patients. J Gastroenterol Hepatol 2013; 28:1314-20. [PMID: 23611167 DOI: 10.1111/jgh.12236] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/04/2013] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS The association between functional dyspepsia (FD) and sleep disorders has yet to be studied in detail. The aim of this study is to evaluate the risk factors associated with sleep disorders and the clinical response to nizatidine therapy for sleep disorders in Rome III-based FD patients. METHODS We enrolled 94 FD patients and 52 healthy volunteers. We used Rome III criteria to evaluate upper abdominal symptoms, and the Self-Rating Questionnaire for Depression scores to determine depression status. Sleep disorder was evaluated using Pittsburgh Sleep Quality Index (PSQI) scores, and degree of anxiety by the State-Trait Anxiety Inventory. Gastric motility was evaluated. Thirty-four FD patients were treated with nizatidine (300 mg/day) or placebo for 4 weeks in a crossover trial. The primary end point of this study was to determine whether nizatidine could improve clinical symptoms and sleep disorders in FD patients. RESULTS The global PSQI score for FD patients was significantly (P < 0.001) higher compared with healthy volunteers. There were significant correlations between global PSQI scores and total Gastrointestinal Symptom Rating Scale and Self-Rating Questionnaire for Depression scores (P < 0.001, P < 0.0001, respectively) in FD patients than in healthy volunteers. We found significant relationships between subjective sleep quality and both Tmax and T1/2 values in FD patients. Nizatidine significantly improved certain clinical symptoms, gastric emptying, and global PSQI score compared with placebo treatment. CONCLUSION Sleep disorders in FD patients correlated significantly with both clinical symptoms of dyspepsia and depression compared with healthy volunteers. Nizatidine significantly improved gastroesophageal reflux symptoms, gastric emptying, and sleep disorders in FD patients.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
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26
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Miyake K, Kusunoki M, Ueki N, Yamada A, Nagoya H, Kodaka Y, Shindo T, Kawagoe T, Gudis K, Futagami S, Tsukui T, Sakamoto C. Classification of patients who experience a higher distress level to transoral esophagogastroduodenoscopy than to transnasal esophagogastroduodenoscopy. Dig Endosc 2013; 25:397-405. [PMID: 23368664 DOI: 10.1111/den.12006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 08/22/2012] [Accepted: 10/15/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND In Japanese routine clinical practice, endoscopy is generally carried out without sedation. The present study aimed to identify the factors essential for appropriate selection of transnasal esophagogastroduodenoscopy (TN-EGD) as an alternative to unsedated transoral esophagogastroduodenoscopy (TO-EGD). PATIENTS AND METHODS Subjects in this prospective cohort study comprised consecutive outpatients who underwent EGD at a single center. Factors predicting TO-EGD-induced distress were evaluated on a visual analog scale (VAS) and analyzed. Patients were classified into a two-layered system on the basis of these predictive factors, and the severity of distress between the TN-EGD and TO-EGD groups was compared using VAS and the change in the rate-pressure product as subjective and objective indices, respectively. RESULTS In total, 728 outpatients (390 male, 338 female; mean age, 63.1 ± 0.5 years; TO-EGD group, 630; TN-EGD group, 98)met the inclusion criteria. Multivariate logistic regression analysis confirmed that age <65 years (P < 0.01; odds ratio [OR], 1.69; 95% confidence interval [CI], 1.14-2.52), gender (female; P < 0.01; OR,1.97; 95% CI, 1.34-2.91), marital status (single; P < 0.01; OR, 1.96; 95% CI, 1.18-3.27), and anxiety towards TO-EGD (P < 0.001; OR, 3.62; 95% CI, 2.44-5.37) were independently associated with intolerance. Both indices were significantly higher in the TO-EGD subgroup than in the TN-EGD subgroup in the high predictive class, but not in the low predictive class. CONCLUSION Predictive factors for detecting intolerance to unsedated TO-EGD may be useful to appropriately select patients who transpose unsedated TO-EGD to TN-EGD.
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Affiliation(s)
- Kazumasa Miyake
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan.
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27
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Song J, Futagami S, Nagoya H, Kawagoe T, Yamawaki H, Kodaka Y, Tatsuguchi A, Gudis K, Wakabayashi T, Yonezawa M, Shimpuku M, Watarai Y, Iwakiri K, Hoshihara Y, Makino H, Miyashita M, Tsuchiya S, Li Y, E Crowe S, Sakamoto C. Apurinic/apyrimidinic endonuclease-1 (APE-1) is overexpressed via the activation of NF-κB-p65 in MCP-1-positive esophageal squamous cell carcinoma tissue. J Clin Biochem Nutr 2013; 52:112-9. [PMID: 23525727 PMCID: PMC3593127 DOI: 10.3164/jcbn.12-95] [Citation(s) in RCA: 5] [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: 08/31/2012] [Accepted: 12/18/2012] [Indexed: 01/18/2023] Open
Abstract
Apurinic/apyrimidinic endonuclease-1 (APE-1), a key enzyme responsible for DNA base excision repair (BER), has been linked to cancer chemoradiosensitivity. The phosphorylation of p65 plays a role in the activation of this pathway. In this study, we investigated APE-1 expression and its interaction with p65 in esophageal squamous cell carcinoma (ESCC) tissue. The expression of APE-1, p65, p65 nuclear localization sequence (p65-NLS), and monocyte chemoattractant protein-1 (MCP-1) was assessed by immunohistochemical analysis in 67 human ESCC tissue samples. Real-time PCR and western blotting were also performed. p65 siRNA was evaluated to determine the role of p65 in the regulation of APE-1 expression. We found nuclear localization of APE-1 in 89.6% (60/67) of ESCC tissue samples. We also observed the colocalization of p65-NLS and APE-1 in esophageal cancer tissue. In KYSE220 cells, pretreatment of MG-132 significantly abrogated upregulation of p65 and APE-1 levels induced by MCP-1, and treatment with 10 and 20 nM p65 siRNA significantly inhibited APE-1 mRNA expression. siRNA for p65 treatment significantly increased the apoptotic index in 5-FU-treated KYSE220 cells. We conclude that APE-1 is overexpressed and mainly localized in the nuclear compartment of cancer cells, and partly regulated by p65 in the NF-κB pathway in ESCC tissue.
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Affiliation(s)
- Junmin Song
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan ; Department of Gastroenterology, Shengjing Hospital, China Medical University, Sanhao Street 36, Heping District, Shenyang, 110004, P.R. China
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Futagami S, Shimpuku M, Song JM, Kodaka Y, Yamawaki H, Nagoya H, Shindo T, Kawagoe T, Horie A, Gudis K, Iwakiri K, Sakamoto C. Nizatidine improves clinical symptoms and gastric emptying in patients with functional dyspepsia accompanied by impaired gastric emptying. Digestion 2013; 86:114-21. [PMID: 22846371 DOI: 10.1159/000339111] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 04/24/2012] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIMS In this crossover study, we investigated whether nizatidine, a H(2)-receptor antagonist, can alleviate clinical symptoms and gastric emptying in patients with Rome III-based functional dyspepsia (FD) with or without impaired gastric emptying. METHODS We enrolled 30 patients presenting with FD symptoms (epigastric pain syndrome, n = 6; postprandial distress syndrome, n = 24). Rome III-based FD patients were treated with nizatidine (300 mg/day) or placebo for 4 weeks in a crossover trial. Gastric motility was mainly evaluated with the T(max) value using the (13)C-acetate breath test. Meal-related symptoms were defined as postprandial fullness and early satiation. Gastroesophageal symptom was defined as a burning feeling rising from the stomach or lower chest up toward the neck. Acylated- and desacylated ghrelin levels were evaluated by the ELISA method. Clinical symptoms, gastric emptying and ghrelin levels were evaluated at three different points during the study (pretreatment, after 4 weeks former treatment and after 4 weeks later treatment). The primary end point of this study was to determine whether nizatidine would improve clinical symptoms and gastric emptying in FD patients with or without impaired gastric emptying via affecting ghrelin levels. RESULTS Meal-related symptoms of the patients treated with nizatidine improved significantly (21/30; 70%) compared to those treated with placebo (3/30; 10%). In addition, nizatidine treatment also significantly improved gastroesophageal symptoms (16/30; 53%) compared to those treated with placebo (0/30; 0%). Nizatidine treatment in patients with FD accompanied by impaired gastric emptying significantly improved clinical symptoms and T(max) value as a marker of gastric emptying (10/11, 91%; 9/11, 82%) compared to placebo therapy, respectively. There were no significant differences in ghrelin levels between nizatidine treatment and placebo therapy. CONCLUSION Nizatidine administration significantly improved both gastric emptying and clinical symptoms in FD patients with impaired gastric emptying.
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Affiliation(s)
- S Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
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29
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Miyake K, Kusunoki M, Ueki N, Nagoya H, Kodaka Y, Shindo T, Kawagoe T, Gudis K, Futagami S, Tsukui T, Nakamura H, Sakamoto C. Implication of antithrombotic agents on potential bleeding from endoscopically determined peptic ulcers, incidentally detected as surrogate markers for nsaids-associated ulcers complication. Dig Endosc 2013; 25:25-31. [PMID: 23286253 DOI: 10.1111/j.1443-1661.2012.01334.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 04/13/2012] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIM Little is known about the clinical significance of treatment for endoscopically determined peptic ulcers (EPU), incidentally detected as surrogate endpoints for non-steroidal anti-inflammatory drugs (NSAIDs)-associated ulcers complication, such as overt bleeding and perforation. Even uncomplicated-EPU without overt bleeding signs when antithrombotic agents (AT) were cotherapied may be of potential bleeding sites. The aim of the present study was to evaluate whether microcytic anemia, implying potential bleeding, is associated with NSAIDs-associated EPU or cotherapies with AT. METHODS Two hundred and thirty-eight outpatients with rheumatoid arthritis under long-term NSAIDs therapies underwent upper endoscopy and were divided into the following four groups according to the pattern (presence: + or absence: -) of AT cotherapy/EPU, respectively: A, -/- (n = 165); B, -/+ (n = 44); C, +/- (n = 25); and D, +/+ (n = 4). RESULTS EPU were found in 48 of the 238 studied patients (20.2%). After significant interactions among four groups hadstatistically been identified, hemoglobin (Hb) and mean corpuscular volume (MCV) as biomarkers for potential bleeding were compared between the groups.Hb and MCV were significantly lower in the D group than in the A,B, or C groups (Hb: P < 0.01, respectively; P < 0.05, MCV; P < 0.01 or P < 0.05, respectively). CONCLUSIONS Patients with NSAIDs-associated EPU and AT cotherapy indicated significantly more severe microcytic anemia pattern than those without EPU or AT cotherapy, despite no evidence of overt bleeding. Even uncomplicated-EPU without overt bleeding when ATs were cotherapied may be of potential bleeding sites.
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Affiliation(s)
- Kazumasa Miyake
- Department of Gastroenterology, Nippon Medical School, Tokyo, Japan.
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30
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Futagami S, Shimpuku M, Kawagoe T, Izumi N, Ohishi N, Yamawaki H, Shindo T, Nagoya H, Horie A, Kodaka Y, Gudis K, Itoh T, Sakamoto C. The preproghrelin 3056 TT genotype is associated with the feeling of hunger and low acylated ghrelin levels in Japanese patients with Helicobacter pylori-negative functional dyspepsia. Intern Med 2013; 52:1155-63. [PMID: 23728548 DOI: 10.2169/internalmedicine.52.8662] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE An impairment of gastric motility is strongly associated with the pathophysiology of functional dyspepsia (FD). Plasma ghrelin is one of the key molecules linked to gastric motility. Therefore, this study aimed to evaluate whether ghrelin (GHRL) gene polymorphisms are associated with clinical symptoms, the plasma ghrelin levels and gastric emptying in patients with FD as defined by the Rome III classification. METHODS We enrolled 74 Helicobacter pylori-negative patients presenting with typical symptoms of FD (epigastric pain syndrome (EPS), n=23; postprandial distress syndrome (PDS), n=51) and 102 healthy volunteers. Gastric motility was evaluated according to the Tmax value and T1/2 using the (13)C-acetate breath test. We used the Rome III criteria to evaluate upper abdominal symptoms and SRQ-D scores to determine the depression status. The Arg51Gln(346G->A), preproghrelin3056T->C, Leu72Met(408C->A) and Gln90Leu(3412T->A) polymorphisms were analyzed in DNA in blood samples obtained from the enrolled subjects. Genotyping was performed using polymerase chain reaction. RESULTS There was a significant relationship (p=0.048) between the preproghrelin 3056TT genotype and the serum levels of acylated ghrelin in the H. pylori-negative FD patients. The preproghrelin 3056TT genotype was significantly (p=0.047) associated with the feeling of hunger in the H. pylori-negative FD patients. CONCLUSION The preproghrelin 3056TT genotype is significantly associated with the acylated ghrelin levels and the feeling of hunger in H. pylori-negative FD patients. Further studies are needed to clarify the association between the preproghrelin 3056TT genotype and lower plasma acylated ghrelin levels and the impact of this relationship on the feeling of hunger in H. pylori-negative FD patients.
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Affiliation(s)
- Seiji Futagami
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Japan.
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Kagami S, Kurita T, Kawagoe T, Toki N, Matsuura Y, Hachisuga T, Matsuyama A, Hashimoto H, Izumi H, Kohno K. Prognostic significance of BAF57 expression in patients with endometrial carcinoma. Histol Histopathol 2012; 27:593-9. [PMID: 22419023 DOI: 10.14670/hh-27.593] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study was conducted to elucidate the prognostic significance of BAF57 in patients with endometrial carcinoma. We investigated the relationship between the immunohistochemical expression of BAF57 and various clinicopathological variables in 111 endometrial carcinomas. Both univariate and multivariate regression analyses were performed. The correlations between the BAF57 expression and the other variables including estrogen receptor (ER) and p53 were examined. The high nuclear BAF57 expression was detected in 42 (37.8%) endometrial carcinomas, and 69 (62.2%) endometrial carcinomas were defined as having low nuclear BAF57 expression. The BAF57 expression was significantly associated with the surgical stage, grade of the tumor, myometrial invasion, lympho-vascular space invasion (LVSI) and lymph node metastasis. The 10-year overall survival rates of patients with low and high BAF57 expression were 96.9% and 58.2%, respectively (p<0.001). A multivariate analysis identified BAF57 expression as an independent prognostic factor. The BAF57 expression was significantly correlated with p53 expression (r=0.312, P=0.001), but was not correlated with ER expression (r= -0.141, P=0.14). The high BAF57 expression is an independent marker of poor prognosis of the patients in endometrial carcinomas. The inhibition of BAF57 activity may be one of the candidates for endometrial cancer therapy, especially therapy for aggressive tumors showing overexpression of p53.
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Affiliation(s)
- S Kagami
- Departmentsof Obstetrics, University of Occupational and Environmental Health School of Medicine, Yahatanishi-ku, Kitakyushu, Japan
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Futagami S, Shimpuku M, Yin Y, Shindo T, Kodaka Y, Nagoya H, Nakazawa S, Fujimoto M, Izumi N, Ohishi N, Kawagoe T, Horie A, Iwakiri K, Sakamoto C. Pathophysiology of functional dyspepsia. J NIPPON MED SCH 2012; 78:280-5. [PMID: 22041874 DOI: 10.1272/jnms.78.280] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Functional dyspepsia is a highly prevalent and heterogeneous disorder. Functional dyspepsia involves many pathogenic factors, such as gastric motility disorders, visceral hypersensitivity, psychological factors, Helicobacter pylori infection, and excessive gastric acid secretion. The present article provides an overview of pathogenetic factors and pathophysiologic mechanisms.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
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Futagami S, Kawagoe T, Kodaka Y, Nagoya H, Shimpuku M, Ueki N, Horie A, Kusunoki M, Miyake K, Sakamoto C. Migration of CD133-positive Cells in Human Gastric Cancer Tissues. J NIPPON MED SCH 2012. [DOI: 10.1272/jnms.79.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | | | | | | | | | - Nobue Ueki
- Division of Gastroenterology, Nippon Medical School
| | - Akane Horie
- Division of Gastroenterology, Nippon Medical School
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Shimpuku M, Futagami S, Kawagoe T, Nagoya H, Shindo T, Horie A, Kodaka Y, Itoh T, Sakamoto C. G-protein β3 subunit 825CC genotype is associated with postprandial distress syndrome with impaired gastric emptying and with the feeling of hunger in Japanese. Neurogastroenterol Motil 2011; 23:1073-80. [PMID: 21902766 DOI: 10.1111/j.1365-2982.2011.01781.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND G-protein dysfunction related alteration of intracellular signal transduction might be linked to various abnormalities of functional gastrointestinal (GI) disorders. Serotonin (5-hydroxytryptamine; 5-HT) as well as G-protein is also key signaling molecule sensorimotor functions in the GI tract. Thus, this study aims to evaluate the correlation between gastric emptying and GNβ3 and 5-HTs polymorphisms in functional dyspepsia (FD) as defined by Rome III classification. METHODS Seventy-four patients presenting with typical symptoms of FD (epigastric pain syndrome: EPS, n=24; postprandial distress syndrome: PDS, n = 51) and sixty-four healthy volunteers were enrolled. Gastric motility was evaluated with the T(max) value using the (13) C-acetate breath test. We used Rome III criteria to evaluate upper abdominal symptoms and SRQ-D scores to determine depression status. GNβ3-C825T, 5-HT(1A) -C1019G, 5-HT(2A) -G1438A, 5-HT(3A) -C42T, and 5-HT(4A) -G353+6A polymorphisms were analyzed in DNA from blood samples of enrolled subjects. Genotyping was performed by polymerase chain reaction. KEY RESULTS There was a significant relationship (P=0.045) between GNβ3 825CC genotype and PDS patients without gastro-esophageal reflux symptoms with impaired gastric emptying. In Japanese, GNβ3 825CC genotype in FD patients was significantly associated (P=0.0485) with the feeling of hunger compared with GNβ3 825CT and TT genotypes. CONCLUSIONS & INFERENCES Our results suggest that the GNβ3 825CC genotype is significantly associated with PDS patients without gastro-esophageal reflux with impairments of gastric emptying and also with the feeling of hunger in patients with FD. Further studies are needed to clarify whether the GNβ3 825CC genotype is linked to disturbances of gastric emptying via altered signal transduction responses.
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Affiliation(s)
- M Shimpuku
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan Center for Information Sciences, Nippon Medical School, Tokyo, Japan
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Kusunoki M, Miyake K, Shindo T, Ueki N, Kawagoe T, Gudis K, Futagami S, Tsukui T, Takagi I, Hosaka J, Sakamoto C. The incidence of deep vein thrombosis in Japanese patients undergoing endoscopic submucosal dissection. Gastrointest Endosc 2011; 74:798-804. [PMID: 21855867 DOI: 10.1016/j.gie.2011.06.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 06/13/2011] [Indexed: 02/08/2023]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) is more invasive than other common endoscopic procedures and may increase the risk for deep vein thrombosis (DVT)/pulmonary embolism. The incidence of DVT/pulmonary embolism after ESD has not been adequately studied. OBJECTIVE To evaluate DVT incidence and disease-specific features of D-dimer levels in ESD patients. DESIGN Prospective cohort study. SETTING Single academic center. PATIENTS This study involved 60 patients with superficial gastric neoplasms indicated for ESD. INTERVENTION For all patients who underwent ESD, ultrasonography of the lower limbs was performed to detect DVT the day after ESD. D-dimer levels were measured 3 times: before ESD, immediately after ESD, and the day after ESD. MAIN OUTCOME MEASUREMENTS DVT incidence after ESD. RESULTS The DVT incidence was 10.0% (6/60). At all 3 time points, D-dimer measurements were higher in patients with DVT than in patients without DVT. According to receiver operating characteristic curve analysis, the resulting cut-off value of the D-dimer level the day after ESD was 1.9 μg/mL (sensitivity 83.3%; specificity 79.6%) for ESD patients, with superior association to pre-ESD or immediately after ESD. In univariate analyses, high D-dimer levels the day after ESD and the presence of comorbidities were significantly associated with DVT development. LIMITATIONS Single center and small number of patients. CONCLUSION ESD procedures have a moderate risk for venous thromboembolism. In patients undergoing ESD, D-dimer levels, especially on the day after ESD, may have specific features associated with DVT development.
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Affiliation(s)
- Masafumi Kusunoki
- Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
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Futagami S, Shindo T, Kawagoe T, Horie A, Shimpuku M, Gudis K, Iwakiri K, Itoh T, Sakamoto C. Migration of eosinophils and CCR2-/CD68-double positive cells into the duodenal mucosa of patients with postinfectious functional dyspepsia. Am J Gastroenterol 2010; 105:1835-42. [PMID: 20461070 DOI: 10.1038/ajg.2010.151] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Recent studies have shown that postinfectious functional dyspepsia (FD) symptoms may persist after elimination of gastrointestinal (GI) infection as well as postinfectious irritable bowel syndrome accompanying colonic inflammation. However, it is unclear whether intestinal chronic inflammation can contribute to clinical symptoms of certain FD patients such as postinfectious FD. To determine the relationship between local inflammation of the duodenum and clinical symptoms, we evaluated the infiltration of several phenotypes of duodenal inflammatory cells as well as gastric motility using (13)C urea breath test in postinfectious FD patients. METHODS We enrolled 136 consecutive patients diagnosed with FD according to Rome III criteria, and 20 healthy controls, after upper GI endoscopy. Gastric motility was evaluated by gastric emptying time (T-max) using the (13)C-acetate breath test. Upper abdominal symptoms including epigastric pain, epigastric burning, postprandial fullness, abdominal distension, and early satiety were assessed by questionnaire scores. We obtained biopsy specimens from the stomach and duodenum during upper GI endoscopy. Histological gastritis and duodenitis were assessed as mild, moderate, or severe according to previously described criteria. Characteristics of inflammatory cells and neuroendocrine cells were determined immunohistochemically with antibodies to CD3, CD68, CCR2, Vdelta1 TCR, and serotonin. RESULTS Endoscopic duodenitis was observed in only 5.7% of postinfectious FD patients. However, the rates of histological duodenitis in duodenal biopsies of postinfectious FD patients were 17% for mild, 26% for moderate, and 57% for severe grades of duodenitis. The degree of histological duodenitis of postinfectious FD patients was significantly greater than that of healthy volunteers. There was a significant correlation between epigastric burning and the degree of duodenitis in postinfectious FD patients. There was no significant difference in histological duodenitis and T-max value in the postinfectious FD patients with or without Helicobacter pylori infection. In addition, CD68-positive cell number in postinfectious FD patients was significantly increased compared with the numbers in subjects with epigastric pain syndrome or postprandial distress syndrome and in healthy volunteers. CCR2-/CD68-double positive cell number in postinfectious FD patients was significantly (P=0.009) increased compared with those in healthy volunteers. CONCLUSIONS Migration of inflammatory cells, in particular, duodenal CCR2-positive macrophages, may have an important function in the pathophysiology of postinfectious FD patients.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan.
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Futagami S, Hamamoto T, Shimpuku M, Nagoya H, Kawagoe T, Horie A, Shindo T, Gudis K, Sakamoto C. Celecoxib inhibits CD133-positive cell migration via reduction of CCR2 in Helicobacter pylori-infected Mongolian gerbils. Digestion 2010; 81:193-203. [PMID: 20090335 DOI: 10.1159/000252790] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Accepted: 10/13/2009] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIMS To see whether celecoxib prevents gastric cancer occurrence by disrupting the progression of chronic gastritis into gastric carcinoma through its inhibition of the migration of CD133-positive cells, one of the surface markers of bone marrow-derived cells, in Helicobacter pylori-infected gerbils. METHODS 70 gerbils were divided into six groups. Group 1 gerbils served as control (n = 6). 10 gerbils were given N-methyl-N-nitrosourea (MNU), 30 ppm (group 2). 6 short-term Helicobacter pylori-infected gerbils (group 3) were sacrificed after 8 weeks of H. pylori infection and 6 long-term H. pylori-infected gerbils were sacrificed after 42 weeks of H. pylori infection (group 4). 20 gerbils were given MNU pretreatment and long-term H. pylori infection (group 5). In addition, after H. pylori inoculation, 22 gerbils also received a celecoxib in their diet (group 6). CD133 and CCR2 expression in gastric tissues was evaluated by Western blot analysis and immunostaining. RESULTS CD133-positive cells were mainly localized in the bottom of the gastric epithelial cells. CD133-positive cells also migrated into gastric cancer tissues in this model. CD133-positive cells in MNU-pretreated H. pylori-infected gerbils were significantly increased compared to those in H. pylori short-term infected gerbils. Celecoxib treatment significantly reduced CD133-positive cell migration and CCR2 expression levels. CD133- and CCR2-positive cells were colocalized in H. pylori-infected gastritis and gastric cancer tissues. Celecoxib treatment significantly reduced the number of CD133- and CCR2-positive cells. CONCLUSIONS Celecoxib inhibits CD133-positive cell migration via the reduction of CCR2 in this model. Further studies are needed to clarify the precise mechanisms driving H. pylori infection-induced CD133-positive cell migration and its link to the progression of chronic gastritis into gastric cancer.
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Affiliation(s)
- Seiji Futagami
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Tokyo, Japan.
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Kawagoe T, Akimoto S, Sato S. Orthodontic treatment of severe crowding malocclusion with temporomandibular joint closed-lock by means of multi-loop edgewise archwire: a case report. J Stomat Occ Med 2010. [DOI: 10.1007/s12548-010-0041-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Miyake K, Kusunoki M, Shindo T, Ueki N, Kawagoe T, Gudis K, Tatsuguchi A, Futagami S, Tsukui T, Sakamoto C. Duodenogastric reflux induced by endoscopic submucosal dissection. Endoscopy 2009; 41:934-40. [PMID: 19866392 DOI: 10.1055/s-0029-1215221] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic submucosal dissection (ESD) may cause excessive duodenogastric reflux (DGR) in a similar manner to distal gastrectomy, particularly after antral resections. We aimed to examine the occurrence of DGR after ESD. PATIENTS AND METHODS Patients with gastric neoplasm for whom ESD was indicated were categorized according to lesion site: the antral group (lower [L] stomach, n = 46) and the nonantral group (upper or middle [U or M] stomach, n = 49). Endoscopy was performed before ESD, the day after ESD, and 3 months after ESD, and the fasting bile acid concentration (BAC) in the gastric juice was analyzed. RESULTS BAC values showed significant interaction between time point and group, although this association differed in the antral and nonantral groups. BACs on the day after ESD were higher in the antral group than in the nonantral group, but not the pre-ESD and 3 months post-ESD levels. In the antral group only, fasting BACs increased significantly the day after ESD and decreased to baseline levels 3 months post-ESD. There was also a correlation between BAC and lesion location in the antral subgroups, with significantly higher BACs found the day after ESD in patients with lesser curvature lesions. CONCLUSIONS ESD of lesions in the antral lesser curvature may lead to a transient early increase in DGR. However, ESD does not result in long-term DGR, a factor that is known to increase the risk of carcinogenesis following gastrectomy.
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Affiliation(s)
- K Miyake
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Tokyo 113-8603, Japan.
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Miyake K, Kusunoki M, Shinji Y, Shindo T, Kawagoe T, Futagami S, Gudis K, Tsukui T, Nakajima A, Sakamoto C. Bisphosphonate increases risk of gastroduodenal ulcer in rheumatoid arthritis patients on long-term nonsteroidal antiinflammatory drug therapy. J Gastroenterol 2009; 44:113-20. [PMID: 19214672 DOI: 10.1007/s00535-008-2278-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2008] [Accepted: 08/10/2008] [Indexed: 02/04/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) patients are at increased risk of peptic ulcers (PU) induced by nonsteroidal antiinflammatory drugs (NSAIDs). However, the impact of potential drug interactions on the development of PU has yet to be determined in a daily clinical setting. The aim was to estimate the clinical important interactions for PU presented by comedication in Japanese RA outpatients on long-term NSAID treatment. METHODS This retrospective cohort study enrolled 196 consecutive RA outpatients on NSAID medication for at least 3 months. Potential risk factors for endoscopic PU were analyzed in RA outpatients on longterm NSAID treatment. RESULTS PU incidence was 31% with bisphosphonate co-therapy and 17% without the co-therapy. PU incidence was only 5% in subjects with proton pump inhibitors (PPI) or prostaglandin E1 analogues (PG) co-therapy, 14% with histamine-H(2) receptor antagonists(H2RA) co-therapy, and 27% without anti-ulcer agents. In multivariate logistic regression analysis, bisphosphonate co-therapy remained a significant risk factor for PU (OR, 2.29; 95% CI, 1.09-4.81). Other risk factors for ulcer development were advanced age (greater than 60 years) and smoking (OR, 2.58; 95% CI, 1.03-6.49 and OR, 2.71; 95% CI, 1.13-5.53, respectively.) Factors that significantly reduced the incidence of PU were H2RA or PPI/PG cotherapies (OR, 0.29; 95% CI, 0.12-0.68.). CONCLUSIONS Bisphosphonate co-therapy as well as advanced age and smoking was found to be a significant risk factor in PU, while co-therapies of standard-dose H2RA or PPI/PG proved effective in preventing PU in Japanese RA patients on long-term NSAID treatment.
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Affiliation(s)
- Kazumasa Miyake
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
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Futagami S, Kawagoe T, Horie A, Shindo T, Hamamoto T, Suzuki K, Kusunoki M, Miyake K, Gudis K, Tsukui T, Crowe SE, Sakamoto C. Celecoxib inhibits apurinic/apyrimidinic endonuclease-1 expression and prevents gastric cancer in Helicobacter pylori-infected mongolian gerbils. Digestion 2009; 78:93-102. [PMID: 18987470 DOI: 10.1159/000167978] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 09/08/2008] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS The aim of this study was to see whether administration of celecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, could prevent the development of gastric cancer via inhibition of apurinic/apyrimidinic endonuclease-1 (APE-1) expression induced by Helicobacter pylori infection. METHODS 70 Mongolian gerbils were divided into 6 groups. Group 1 gerbils served as controls (n = 6). Ten gerbils were given N-methyl-N-nitrosourea (MNU), 30 ppm, 5 times biweekly (group 2). Short-term H. pylori infection was induced in 6 gerbils which were sacrificed 8 weeks after H. pylori infection (group 3). Long-term H. pylori infection was induced in 6 other gerbils which were sacrificed 44 weeks after H. pylori infection (group 4). Twenty gerbils were given MNU pretreatment 5 times biweekly and long-term H. pylori infection (group 5). In addition, after H. pylori inoculation, group 6 gerbils also received celecoxib with their diet for 26 weeks. APE-1 expression alone or with COX-2 in gastric tissues was evaluated by Western blot and immunohistological analysis. Myeloperoxidase (MPO) activity and thiobarbituric-acid-reactive substance (TBARS) levels were also evaluated. RESULTS APE-1 was localized in gastric epithelial cells and mesenchymal cells including macrophages in H. pylori-infected gerbils. The numbers of APE-1-positive cells in group 4 and 5 were significantly increased compared to those of group 3. Celecoxib treatment significantly reduced MPO activity, TBARS levels and the incidence of gastric cancer. APE-1 and IkappaBalpha phosphorylation levels were significantly increased in MNU-pretreated H. pylori-infected gerbils compared to those in MNU-only gerbils. Celecoxib significantly reduced APE-1 and IkappaBalpha phosphorylation levels in MNU-pretreated H. pylori-infected gerbils. COX-2 and APE-1 were coexpressed in the macrophages of H. pylori-infected gerbils. CONCLUSION Celecoxib prevented gastric cancer in MNU-pretreated H. pylori-infected gerbils with a reduction in APE-1 expression thereby suggesting the implication of APE-1 in gastric carcinogenesis in this model.
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Affiliation(s)
- Seiji Futagami
- Division of Gastroenterology, Nippon Medical School, Tokyo, Japan.
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Ueki N, Miyake K, Kusunoki M, Shindo T, Kawagoe T, Futagami S, Tsukui T, Inagaki H, Sakamoto C. Impact of quadruple regimen of clarithromycin added to metronidazole-containing triple therapy against Helicobacter pylori infection following clarithromycin-containing triple-therapy failure. Helicobacter 2009; 14:91-9. [PMID: 19298336 DOI: 10.1111/j.1523-5378.2009.00664.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND The establishment of an optimal second-line regimen for Helicobacter pylori infection is required. Although quadruple therapy should overcome resistance to either clarithromycin or metronidazole, the effects of a quadruple regimen in second-line therapy are unknown. This study aims to evaluate the efficacy of triple therapy composed of proton pump inhibitor/amoxicillin plus metronidazole with the combined additive effects of clarithromycin as a second-line quadruple therapy against H. pylori infection. MATERIALS AND METHODS Participants were 104 patients in whom first-line therapy containing proton pump inhibitor-amoxicillin-clarithromycin failed. Before starting second-line therapy, patients underwent endoscopy to obtain H. pylori strain for antibiotic susceptibility tests. Patients were randomized to receive rabeprazole (10 mg), amoxicillin (750 mg), and metronidazole (250 mg), either with clarithromycin (200 mg; RAMC group) or without (RAM group); all treatments were administered twice daily for 7 days. H. pylori eradication was confirmed by (13)C-urea breath tests performed 2 to 3 months post-therapy. RESULTS As shown by intention-to-treat/per-protocol analyses, the cure rates for H. pylori infection were 88.5%/93.9% and 82.7%/84.3% for the RAMC and RAM groups. Although the study probably had an insufficient power to show a significant difference between the cure rates of the two regimens, the eradication rates showed a clear trend in favor of the RAMC group. There were no severe side-effects in any group. CONCLUSIONS In Japan, the RAMC regimen is thought to be a promising alternative strategy for second-line eradication of H. pylori infection.
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Affiliation(s)
- Nobue Ueki
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo.
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Kawagoe T, Onodera K, Tokiwa O, Sasaguri K, Akimoto S, Sato S. Relationship between sleeping occlusal contact patterns and temporomandibular disorders in the adult Japanese population. J Stomat Occ Med 2009. [DOI: 10.1007/s12548-009-0002-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ishihara M, Sato H, Tateishi H, Kawagoe T, Shimatani Y, Ueda K, Noma K, Yumoto A, Nishioka K. Long-term prognosis of late spontaneous reperfusion after failed thrombolysis for acute myocardial infarction. Clin Cardiol 2009; 22:787-90. [PMID: 10626080 PMCID: PMC6655750 DOI: 10.1002/clc.4960221206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Early reperfusion improves left ventricular (LV) function and survival after acute myocardial infarction (MI). Thrombolytic therapy achieves early patency of the infarct artery in about two-thirds of patients. In nearly half of the remaining patients, in whom early reperfusion was not achieved with thrombolytic therapy, the infarct artery might reopen by the time of predischarge angiography. However, the impact of such late spontaneous reperfusion after failed thrombolytic therapy on LV function and long-term survival remained unclear. HYPOTHESIS This study was undertaken to assess implication of late spontaneous reperfusion after failed thrombolytic therapy on LV function and long-term survival after acute MI. METHODS The study consisted of 198 patients with anterior acute MI who underwent thrombolytic therapy and predischarge angiography: 160 patients with infarct artery patent early and late after therapy (persistent patency), 17 patients with infarct artery occluded early after therapy but patent at predischarge angiography (late spontaneous reperfusion), and 21 patients with infarct artery occluded early and late after therapy (persistent occlusion). RESULTS Persistent patency was associated with enhanced improvement in LV ejection fraction (7.7 +/- 11.8%) compared with late spontaneous reperfusion (0.0 +/- 9.6%, p = 0.03) and persistent occlusion (-1.4 +/- 9.7%, p = 0.003). Persistent patency was associated with better long-term survival than with late spontaneous reperfusion (p < 0.001) and persistent occlusion (p < 0.001). Multivariate analysis comparing persistent patency and late spontaneous reperfusion showed that early reperfusion was an independent predictor of long-term survival. CONCLUSION Late spontaneous reperfusion after failed thrombolytic therapy was associated with poor LV function and long-term survival, emphasizing the importance of early reperfusion.
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Affiliation(s)
- M Ishihara
- Department of Cardiology, Hiroshima City Hospital, Japan
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Toshinai K, Kawagoe T, Shimbara T, Tobina T, Nishida Y, Mondal MS, Yamaguchi H, Date Y, Tanaka H, Nakazato M. Acute incremental exercise decreases plasma ghrelin level in healthy men. Horm Metab Res 2007; 39:849-51. [PMID: 17992644 DOI: 10.1055/s-2007-991177] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- K Toshinai
- Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
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Kurisu S, Inoue I, Kawagoe T, Ishihara M, Shimatani Y, Nakama Y, Maruhashi T, Kagawa E, Dai K, Aokage T. Role of medications in symptomatic hyperkalemia. QJM 2007; 100:591-3. [PMID: 17709348 DOI: 10.1093/qjmed/hcm068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Ishihara M, Inoue I, Kawagoe T, Shimatani Y, Kurisu S, Hata T, Nakama Y, Kijima Y, Kagawa E. Ischaemic preconditioning effect of prodromal angina pectoris is lost in patients with prior myocardial infarction. Heart 2006; 92:973-4. [PMID: 16775106 PMCID: PMC1860705 DOI: 10.1136/hrt.2005.066589] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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48
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Matsuura Y, Kawagoe T, Toki N, Tanaka M, Kashimura M. Long-standing complications after treatment for cancer of the uterine cervix--clinical significance of medical examination at 5 years after treatment. Int J Gynecol Cancer 2006; 16:294-7. [PMID: 16445648 DOI: 10.1111/j.1525-1438.2006.00354.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [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: 11/30/2022] Open
Abstract
The purpose of this study is to investigate the side effect in patients who survived for more than 5 years after initial treatment for invasive cervical cancer. Between January 1984 and December 1997, 341 patients underwent primary treatment for invasive cervical cancer. One hundred nine patients who underwent medical examinations at 5 years after primary treatment were reviewed. The patients were divided into three groups: radical surgery alone (group A), radiotherapy alone (group B), and radical surgery with postoperative radiotherapy (group C). Dysuria was seen in 8%, and positive catheterized urine culture was noted in about 20% of groups A and C. Hydronephrosis was seen in 2% and 9% of groups A and B, respectively. Colitis or ulcer detected by proctosigmoidoscopy was noted in 15%, 50%, and 43% of groups A, B, and C, respectively, frequently observed in radiotherapy group (P= 0.0029). Lymphocyst was still present in 6% of group A, and leg edema was noted in 14%, 6%, and 15% of groups A, B, and C, respectively. Long-standing abnormal findings including urinary and bowel complications were presented in this study. Periodic physical examination after treatment should be performed because complications existed over a long time.
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Affiliation(s)
- Y Matsuura
- Department of Obstetrics and Gynecology, University of Occupational and Environmental Health Japan, Iseigaoka 1-1, Yahata Nisahi-Ku, Kitakyushu, Fukuoka 807-8555, Japan.
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Mondal MS, Yamaguchi H, Date Y, Toshinai K, Kawagoe T, Tsuruta T, Kageyama H, Kawamura Y, Shioda S, Shimomura Y, Mori M, Nakazato M. Neuropeptide W is present in antral G cells of rat, mouse, and human stomach. J Endocrinol 2006; 188:49-57. [PMID: 16394174 DOI: 10.1677/joe.1.06195] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Neuropeptide W (NPW) is a 30-amino-acid peptide initially isolated from the porcine hypothalamus as an endogenous ligand for the G protein-coupled receptors GPR7 and GPR8. An intracerebroventricular administration of NPW increased serum prolactin and corticosterone concentrations, decreased dark-phase feeding, raised energy expenditure, and lowered body weight. Peripherally, GPR7 receptors are abundantly expressed throughout the gastrointestinal tract; the presence of NPW in the gastrointestinal endocrine system, however, remains unstudied. Using monoclonal and polyclonal antibodies raised against rat NPW, we studied the localization of NPW in the rat, mouse, and human stomach by light and electron microscopy. NPW-immunoreactive cells were identified within the gastric antral glands in all three species. Double immunohistochemistry and electron-microscopic immunohistochemistry studies in rats demonstrated that NPW is present in antral gastrin (G) cells. NPW immunoreactivity localized to round, intermediate-to-high-density granules in G cells. NPW-immunoreactive cells accounted for 90% chromagranin A- and 85% gastrin-immunoreactive endocrine cells in the rat gastric antral glands. Using reversed-phase HPLC coupled with enzyme immunoassays specific for NPW, we detected NPW30 and its C-terminally truncated form, NPW23, in the gastric mucosa. Plasma NPW concentration of the gastric antrum was significantly higher than that of the systemic vein, suggesting that circulating NPW is derived from the stomach. Plasma NPW concentration of the gastric antrum decreased significantly after 15-h fast and increased after refeeding. This is the first report to clarify the presence of NPW peptide in the stomachs of rats, mice, and humans. In conclusion, NPW is produced in gastric antral G cells; our findings will provide clues to additional mechanisms of the regulation of gastric function by this novel brain/gut peptide.
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Affiliation(s)
- M S Mondal
- Department of Internal Medicine, Miyazaki Medical College, University of Miyazaki, Kiyotake, Miyazaki 889-1692, Japan
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50
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Kawagoe T, Iguchi Y, Miyamachi T, Yamasaki A, Suga S. Spiral terraces and spin frustration in layered antiferromagnetic Cr(001) films. Phys Rev Lett 2005; 95:207205. [PMID: 16384095 DOI: 10.1103/physrevlett.95.207205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Indexed: 05/05/2023]
Abstract
We have successfully fabricated a novel type of high-density spiral terraces on Cr(001) films. The influence of nanoscale spiral terraces on layered antiferromagnetic ordering of Cr(001) films has been studied at room temperature by direct imaging of both topographic and magnetic structures using spin-polarized scanning tunneling spectroscopy. Spin frustration and asymmetric magnetic ordering due to dense spiral terraces are observed. Sizable modification of the layered antiferromagnetic order is found to be originating from the topological asymmetry as confirmed by the continuum micromagnetic simulation.
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Affiliation(s)
- T Kawagoe
- Division of Natural Science, Osaka Kyoiku University, Osaka 582-8582, Japan
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