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Niizeki H, Tanaka R, Nomura T, Seki A, Miyasaka M, Matsumoto Y, Ishibashi M, Narumi S, Nakabayashi K, Yoshida K. Lack of cutis verticis gyrata is associated with c.1279_1290del12 of SLCO2A1 in 43 Japanese patients with pachydermoperiostosis. J Dermatol Sci 2024:S0923-1811(24)00054-9. [PMID: 38644096 DOI: 10.1016/j.jdermsci.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 02/22/2024] [Accepted: 03/21/2024] [Indexed: 04/23/2024]
Affiliation(s)
- H Niizeki
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan.
| | - R Tanaka
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan
| | - T Nomura
- Department of Dermatology, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - A Seki
- Division of Orthopedics, National Center for Child Health and Development, Tokyo, Japan
| | - M Miyasaka
- Division of Radiology, National Center for Child Health and Development, Tokyo, Japan
| | - Y Matsumoto
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan
| | - M Ishibashi
- Department of Dermatology, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - S Narumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Yoshida
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan.
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Bostancı MT, Yılmaz I, Seki A, Saydam M, Kosmaz K, Kaya IO. Haematological inflammatory markers for indicating ischemic bowel in patients with incarcerated abdominal wall hernias. Hernia 2021; 26:349-353. [PMID: 34816325 DOI: 10.1007/s10029-021-02518-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/04/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To reveal the clinical significance of preoperative haematological inflammatory markers in the diagnosis of abdominal wall hernias with strangulation. METHODS The data of 200 patients who underwent surgery for incarcerated hernia were retrospectively analysed. The patients were grouped into three groups; Group 1; only surgical reduction and hernia repair, Group 2; small bowel resection and Group 3; omentum resection. Age, gender, hernia type, the presence of radiological bowel obstruction and preoperative complete blood count data were obtained. Neutrophil-leukocyte ratio (NLR), lymphocyte-monocyte ratio (LMR), platelet-lymphocyte ratio (PLR), haematological inflammatory index (HII) and systemic immune-inflammation index (SII) values were calculated. RESULTS The study was consisted of; Group 1: 119 patients (59.5%), Group 2: 46 patients (23%) and Group 3: 35 patients (17.5%). Advanced age (p = 0.001), female gender (p = 0.036), incisional hernias (p = < 0.001) and the presence of bowel obstruction (p = < 0.001) were found to be statistically significant in terms of strangulation. NLR, PLR and SII values were significantly higher in Group 2 compared to Group 1, and PLR values were significantly higher in Group 2 compared with Group 3 (p < 0.05). CONCLUSION The preoperative elevated NLR, PLR and SII values may indicate strangulation and possible intestinal resection, in incarcerated abdominal wall hernias.
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Affiliation(s)
- M T Bostancı
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, 06110, Turkey.
| | - I Yılmaz
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, 06110, Turkey
| | - A Seki
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, 06110, Turkey
| | - M Saydam
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, 06110, Turkey
| | - K Kosmaz
- Department of Surgery, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - I O Kaya
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, 06110, Turkey
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Iida H, Komagata T, Tanaka H, Nagasawa R, Nishio T, Shono T, Kitagawa J, Ogawara KI, Shinozaki K, Seki A, Bruce M, Ohno T. Novel Platform for Predicting Drug Effects in Patients with Acromegaly: Translational Exposure-Response Evaluation of Growth Hormone-Inhibitory Effect of Octreotide after Growth Hormone-Releasing Hormone Stimulation. J Pharmacol Exp Ther 2021; 379:400-408. [PMID: 34599040 DOI: 10.1124/jpet.121.000769] [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] [Received: 05/30/2021] [Accepted: 09/29/2021] [Indexed: 11/22/2022] Open
Abstract
Acromegaly is a chronic systemic disease characterized by facial and peripheral changes caused by soft tissue overgrowth and is associated with multiple comorbidities. Despite available surgical and medical therapies, suitable treatments for acromegaly are still lacking. Efficient drug development requires an understanding of the exposure-response (E-R) relationship based on nonclinical and early clinical studies. We aimed to establish a platform to facilitate the development of novel drugs to treat acromegaly. We evaluated the E-R relationship of the growth hormone (GH)-inhibitory effect of the somatostatin analog octreotide under growth hormone-releasing hormone + arginine stimulation in healthy participants and compared the results with historical data for patients with acromegaly. This randomized five-way crossover study included two placebo and three active-treatment periods with different doses of octreotide acetate. GH secretion in the two placebo periods was comparable, which confirmed the reproducibility of the response with no carryover effect. GH secretion was inhibited by low-, medium-, and high-dose octreotide acetate in a dose-dependent manner. We also examined the E-R relationship in monkeys as a preclinical drug evaluation study and in rats as a more convenient and simple system for screening candidate drugs. The E-R relationships and EC50 values were similar among animals, healthy participants, and patients with acromegaly, which suggests that GH stimulation studies in early research and development allowed simulation of the drug response in patients with acromegaly. SIGNIFICANCE STATEMENT: This study demonstrated similar exposure-response relationships in terms of the growth hormone-inhibitory effect of octreotide after growth hormone-releasing hormone stimulation among healthy participants, monkeys, and rats. The research methods and analyses utilized in this study will be useful for simulating the dosages and therapeutic effects of drugs for acromegaly and will facilitate the research and development of novel therapeutic agents with similar modes of action.
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Affiliation(s)
- Hiroyuki Iida
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Tatsuya Komagata
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Hirotaka Tanaka
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Ryusuke Nagasawa
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Takuya Nishio
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Tomoyuki Shono
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Junsaku Kitagawa
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Ken-Ichi Ogawara
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Koji Shinozaki
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Akiteru Seki
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Mark Bruce
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
| | - Tomoya Ohno
- Ono Pharmaceutical Co., Ltd., Osaka, Japan (H.I., T.K., H.T., R.N., T.N., T.S., J.K., K.S., A.S., T.O.); Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan (H.I., K.O.); and Ono Pharma UK Ltd., London, United Kingdom (M.B.)
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Kazuyori T, Seki Y, Sato A, Fujimoto S, Yamada M, Yamanaka Y, Fujisaki I, Odashima K, Seki A, Ishikawa T, Kuwano K. P2.16-32 Best Supportive Care for Extreme Elderly Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Seki Y, Kazuyori T, Sato A, Fujimoto S, Yamada M, Yamanaka Y, Fujisaki I, Odashima K, Seki A, Ishikawa T, Kuwano K. P2.16-07 How to Manage Toxicities of EGFR-TKI for Extreme Elderly Lung Cancer Patients: Supportive Care for Patients Aged 85 and Older. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kaviya A, O'Reilly T, Batonga J, Seki A, Beale D, Yoneda K, Bruce M. SAT-430 A Phase 1 Study in Healthy Volunteers to Assess the Safety, Tolerability, and Pharmacokinetics of ONO-5788: A Novel Oral Small Molecule Somatostatin Receptor Type-2 Agonist. J Endocr Soc 2019. [PMCID: PMC6551954 DOI: 10.1210/js.2019-sat-430] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
| | | | | | | | | | | | - Mark Bruce
- ONO Pharma UK Ltd, London, , United Kingdom
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Seki A, Matsuda N, Kajiura Y, Kobayashi D, Hayashi N, Tsunoda H, Suzuki K, Yoshida A, Takei J, Yamauchi H. Abstract P5-18-05: Clinicopathological characteristics and prognosis of young patients with ductal carcinoma in situ. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-18-05] [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: The peak age at diagnosis of breast cancer differs between patients in Asian countries (40 - 50 years), and those in Western countries (60 - 70 years). With the increasing use of screening mammography, the incidence of ductal carcinoma in situ (DCIS) has increased significantly in younger Asian women. Nevertheless, our knowledge of the clinicopathological features and prognosis in young patients with DCIS is relatively limited. We aimed to compare the clinicopathological features of younger patients with that of older patients with DCIS and to evaluate their prognostic factors.Methods: A total of 1445 women were diagnosed with DCIS between the years 2005 and 2015. Patients with the past history of breast cancer and managed without surgery were excluded. The young age group included patients <50 years of age, whereas the old age group included patients ≥50 years of age at diagnosis. We compared the clinicopathological characteristics [tumor size, surgery type, estrogen receptor (ER) and progesterone receptor (PgR) status, HER2 status, nuclear grade, margin status, radiotherapy, endocrine therapy, family history of breast cancer, and screening presentation or presentation with symptoms] and prognosis [disease-free survival (DFS), and overall survival (OS)] between the groups. DFS included the following events: contralateral breast cancer, loco-regional, and distant recurrences. DFS and OS were estimated using the Kaplan–Maier method. The risk factors associated with events were estimated using the log-rank test for univariate analysis. P values < 0.05 were considered statistically significant.Result: Among the 1445 patients diagnosed with DCIS, 1281 were included in this study. The median age at diagnosis was 47 years (range, 22-87 years). The median follow-up time was 72 months (range, 1-162 months). ER and/or PgR status was positive in 1133 patients (88%). HER2 status was positive in 289 patients (23%). Premenopausal status was noted in 867 patients (68%). The median tumor size was 3.0 cm. Of 1281, 202 (18%) patients received endocrine therapy, 846 (66%) received breast conserving surgery, and 724 (86%) received radiation therapy. There were 765 patients (60%) in the young group. Significantly more patients in the young group had low nuclear grades, were ER and/or PgR positive, were HER2 receptor negative, underwent mastectomy, presented with symptoms, and had close/positive margins. Fifty-eight (4.5%) events occurred: 41 (3.2%) contralateral breast cancers, 19 (1.5%) loco-regional recurrences, and one (0.1%) distant metastasis. No death due to breast cancer was reported. On multivariate analysis, the young group (hazard ratio: 2.24, 95% CI: 1.01 - 4.95, P = 0.04), and presentation with clinical symptoms (hazard ratio: 2.09, 95% CI: 1.07-4.10, P = 0.03) significantly correlated with worse DFS. OS was not significantly different between the groups.Conclusion: This was the largest study with young patients with DCIS in the Asian population. We found that age at diagnosis was a significant independent factor associated with DFS. While genetic background also requires consideration, women with DCIS at <50 year of age may require intensive surveillance. This result requires confirmation with longer follow-up.
Citation Format: Seki A, Matsuda N, Kajiura Y, Kobayashi D, Hayashi N, Tsunoda H, Suzuki K, Yoshida A, Takei J, Yamauchi H. Clinicopathological characteristics and prognosis of young patients with ductal carcinoma in situ [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-18-05.
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Affiliation(s)
- A Seki
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - N Matsuda
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - Y Kajiura
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - D Kobayashi
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - N Hayashi
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - H Tsunoda
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - K Suzuki
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - A Yoshida
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - J Takei
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
| | - H Yamauchi
- St.Luke's International Hospital, Tokyo, Japan; Center for Clinical Epidemiology, St. Luke's International University, Tokyo, Japan
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Okumatsu K, Tsujimoto T, Wakaba K, Seki A, Kotake R, Yamauchi T, Hirayama S, Kobayashi H, Yamauchi H, Tanaka K. Effects of a combined exercise plus diet program on cardiorespiratory fitness of breast cancer patients. Breast Cancer 2018; 26:65-71. [PMID: 29992486 PMCID: PMC6315012 DOI: 10.1007/s12282-018-0889-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 07/01/2018] [Indexed: 01/16/2023]
Abstract
Background Decreases in cardiorespiratory fitness among breast cancer patients have often been reported in previous studies, affecting patients’ health and survival. Peak oxygen uptake (\documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}\text{O}}}_{{{\text{2peak}}}}$$\end{document}V˙O2peak) is the gold standard for assessing cardiorespiratory fitness and is inversely correlated with cardiovascular disease among women with breast cancer. Some previous studies have reported that aerobic exercise and proper diet positively influence \documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}\text{O}}}_{{{\text{2peak}}}}$$\end{document}V˙O2peak. However, almost all studies have been conducted in the Western countries, and few studies are investigating on Asian women who have lower BMI compared with Western ones. Purpose Investigating the effects of a combined exercise and diet program among Japanese cancer patients undergoing therapy on \documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}\text{O}}}_{{{\text{2peak}}}}$$\end{document}V˙O2peak. Methods Thirty-two Japanese women with breast cancer undergoing endocrine therapy (age; 50 ± 6 years, body weight; 59 ± 10 kg) were voluntarily assigned to either intervention group (n = 21) or control group (n = 11). The intervention group completed a 12-week combined exercise plus diet program, consisting of weekly aerobic exercise and maintaining a nutritionally well-balanced 1200 kcal/day diet. The control group was instructed to continue with their usual activities. Anthropometric indices and \documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}\text{O}}}_{{{\text{2peak}}}}$$\end{document}V˙O2peak were measured at baseline and after the 12-week program. Results All 21 women completed the 12-week program. The \documentclass[12pt]{minimal}
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\begin{document}$${{\dot{V}\text{O}}}_{{{\text{2peak}}}}$$\end{document}V˙O2peak significantly increased from 26.7 to 30.4 mL/kg/min (1.57–1.62 L/min) in the intervention group, while it remained unchanged (26.9–26.9 mL/kg/min) in the control group. Mean reduction of body mass index was − 2.1 in the intervention group (P < .001) and + 0.1 in the control group. Conclusions Our combined exercise plus diet program may contribute to improvement in cardiorespiratory fitness and body weight compared with control group.
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Affiliation(s)
- K Okumatsu
- Graduate School of Comprehensive Human Sciences, Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8574, Japan.
| | - T Tsujimoto
- Faculty of Human Sciences, Shimane University, 1060 Nishikawatsucho, Matsue, Shimane, 690-8504, Japan
| | - K Wakaba
- Graduate School of Comprehensive Human Sciences, Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8574, Japan
| | - A Seki
- Department of Breast Surgical Oncology, St. Luke's International Hospital, 9-1 Akashicho, Chou-ku, Tokyo, 104-8560, Japan
| | - R Kotake
- Department of Breast Surgical Oncology, St. Luke's International Hospital, 9-1 Akashicho, Chou-ku, Tokyo, 104-8560, Japan
| | - T Yamauchi
- Division of Medical Oncology, Department of Internal Medicine, St. Luke's International Hospital, 9-1 Akashicho, Chou-ku, Tokyo, 104-8560, Japan
| | - S Hirayama
- Department of Management and Planning, Central Sports Co., Ltd, 1-21-2 Shinkawa, Chuo-ku, Tokyo, 104-8255, Japan
| | - H Kobayashi
- Department of General Medicine, Mito Medical Center, Tsukuba University Hospital, 3-2-7 Miyamachi, Mito, Ibaraki, 310-0015, Japan
| | - H Yamauchi
- Department of Breast Surgical Oncology, St. Luke's International Hospital, 9-1 Akashicho, Chou-ku, Tokyo, 104-8560, Japan
| | - K Tanaka
- Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8574, Japan
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Okumatsu K, Tsujimoto T, Seki A, Kotake R, Yamauchi T, Yamauchi H, Tanaka K. Abstract P6-11-04: Effects of a combined exercise plus diet intervention on cardiorespiratory fitness among Japanese women with breast cancer: A feasibility study. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p6-11-04] [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
Remarkable deterioration of physical fitness is a well-established adverse event associated with endocrine therapy among breast cancer patients. Especially, impairment in cardiorespiratory fitness has been often reported in previous studies, affecting patients' health and survival. Peak oxygen uptake (VO2peak) is the gold standard for assessing cardiorespiratory fitness and is inversely correlated with cardiovascular disease among women with breast cancer as well as ordinal people. A number of previous studies have reported that aerobic exercise improves the risk of cardiovascular disease. Moreover, a proper diet program positively influences VO2peak. However, almost all studies have been conducted in the Western community and there are few studies forcing on Asian women who have lower BMI compared with Western ones. Therefore, we investigated the feasibility of a combined exercise and diet program among Japanese cancer patients undergoing endocrine therapy and the effect on VO2peak.
Methods
Thirty-Two Japanese women with breast cancer undergoing endocrine therapy (age; 50±6 years, body weight; 126±22 lbs) were voluntarily assigned to either intervention group (n = 21) or control group (n = 11). The intervention group completed a 12-week combined exercise plus diet program, consisting of weekly aerobic training and maintaining a nutritionally well-balanced 1,200 kcal/d diet. The control group were instructed to continue with their usual activities. Anthropometric indices, VO2peak and QoL were measured at baseline and after the 12-week program. VO2peak was assessed using an Okura protocol (Okura. 1999).
Results
All of the 21 women completed the 12-week program. The VO2peak increased from 26.7 to 30.4 mL/kg/min (1.57 to 1.62 L/min) in the intervention group, while it remained unchanged (26.6 to 26.7 mL/kg/min) in the control group. Significant improvements were observed in VO2peak, and QoL in the intervention group (P <. 001), while they remained essentially unchanged among the control group. Mean weight loss was 8.7% of the initial weight in the intervention group (P <. 001) and 0.1% in the control group. No adverse events were reported in the intervention group.
Conclusions
Our combined exercise plus diet program may contribute to improvement in cardiorespiratory fitness, QoL, and body weight compared with control group. Importantly, cardiorespiratory fitness has been improved by as much as 15 % after three months. Further studies are needed to consider that what kind of aerobic exercise is best to improve cardiorespiratory fitness among Asian breast cancer patients.
Citation Format: Okumatsu K, Tsujimoto T, Seki A, Kotake R, Yamauchi T, Yamauchi H, Tanaka K. Effects of a combined exercise plus diet intervention on cardiorespiratory fitness among Japanese women with breast cancer: A feasibility study [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P6-11-04.
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Affiliation(s)
- K Okumatsu
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - T Tsujimoto
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - A Seki
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - R Kotake
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - T Yamauchi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - H Yamauchi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
| | - K Tanaka
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; Faculty of Human Science, University of Shimane, Matsue, Shimane, Japan; St. Luke's International Hospital, Chuoku, Tokyo, Japan
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10
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Kimura S, Saito M, Kida Y, Seki A, Isaka Y, Marumo K. Effects of raloxifene and alendronate on non-enzymatic collagen cross-links and bone strength in ovariectomized rabbits in sequential treatments after daily human parathyroid hormone (1-34) administration. Osteoporos Int 2017; 28:1109-1119. [PMID: 27796444 DOI: 10.1007/s00198-016-3812-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 12/31/2015] [Accepted: 10/17/2016] [Indexed: 01/22/2023]
Abstract
UNLABELLED This study investigated the effects of raloxifene and alendronate to follow parathyroid hormone (PTH) on bone collagen and biomechanical properties in ovariectomized rabbits. Sequential treatments of raloxifene and alendronate after hPTH(1-34) treatment improved biomechanical properties with and without bone collagen improvement, respectively. INTRODUCTION The standard sequential treatment to follow human parathyroid hormone (hPTH) (1-34) therapy for osteoporosis has yet to be determined. The objective of this study was to compare the effects of raloxifene and alendronate treatments to follow daily hPTH(1-34) treatment on non-enzymatic collagen cross-links, bone mass, and bone strength in ovariectomized (OVX) rabbits. METHODS From 3 months after ovariectomy, seven month-old female New Zealand white rabbits were given either vehicle or hPTH(1-34) (8 μg/kg/day), once daily for 5 months. After hPTH(1-34) treatment, the hPTH(1-34)-treated animals were divided into two groups, and given raloxifene (10 mg/kg, daily) orally or alendronate (100 μg/kg, twice weekly) subcutaneously for 5 months. We evaluated bone mineral density (BMD), bone structural parameters, advanced glycation end product (AGE) content in collagen, and bone mechanical parameters including intrinsic parameters in the femur. RESULTS Raloxifene (hPTH/RLX) and alendronate (hPTH/ALN) to follow hPTH(1-34) increased cortical thickness, maximum load, and maximum stress and decreased endocortical surface in the diaphysis, in addition to increasing total BMD in the distal metaphysis. Decreased trabecular AGE, pentosidine, and homocysteine contents and increased toughness and breaking energy were noted with hPTH/RLX treatment only. With hPTH/ALN treatment, no effects on non-enzymatic collagen cross-link AGEs were noted although increases in stiffness and elastic modulus were observed. CONCLUSION These results suggest that sequential treatments with hPTH(1-34) and antiresorptive drugs (raloxifene and alendronate) have a beneficial effect on bone mass and biomechanical properties in OVX rabbits.
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Affiliation(s)
- S Kimura
- Medical Science, Medicines Development Unit Japan, Eli Lilly Japan KK, Sannomiya Plaza Building 7-1-5 Isogami-dori, Chuo-ku, Kobe, 651-0086, Japan.
| | - M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Y Kida
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - A Seki
- Hamri Co., Ltd., 2638-2, Osaki, Koga, Ibaraki, 306-0101, Japan
| | - Y Isaka
- Medical Science, Medicines Development Unit Japan, Eli Lilly Japan KK, Sannomiya Plaza Building 7-1-5 Isogami-dori, Chuo-ku, Kobe, 651-0086, Japan
| | - K Marumo
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
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Seki A, Fishbein M. Age-related Cardiovascular Changes and Diseases. Cardiovasc Pathol 2016. [DOI: 10.1016/b978-0-12-420219-1.00002-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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12
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Suzuki T, Seki A, Nakamura T, Ikegami H, Takayama S, Nakamura M, Matsumoto M, Sato K. Re-dislocation after corrective osteotomy for chronic dislocation of the radial head in children. Bone Joint J 2015; 97-B:1582-7. [PMID: 26530665 DOI: 10.1302/0301-620x.97b11.36009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This retrospective study was designed to evaluate the outcomes of re-dislocation of the radial head after corrective osteotomy for chronic dislocation. A total of 12 children with a mean age of 11 years (5 to 16), with further dislocation of the radial head after corrective osteotomy of the forearm, were followed for a mean of five years (2 to 10). Re-operations were performed for radial head re-dislocation in six children, while the other six did not undergo re-operation ('non-re-operation group'). The active range of movement (ROM) of their elbows was evaluated before and after the first operation, and at the most recent follow-up. In the re-operation group, there were significant decreases in extension, pronation, and supination when comparing the ROM following the corrective osteotomy and following re-operation (p < 0.05). The children who had not undergone re-operation achieved a better ROM than those who had undergone re-operation. There was a significant difference in mean pronation (76° vs 0°) between the non- re-operation and the re-operation group (p = 0.002), and a trend towards increases in mean flexion (133° vs 111°), extension (0° vs 23°), and supination (62° vs 29°). We did not find a clear benefit for re-operation in children with a re-dislocation following corrective osteotomy for chronic dislocation of the radial head.
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Affiliation(s)
- T Suzuki
- Keio University School of Medicine, 35 Shinano-machi, Shinjuku, Tokyo 160-8582, Japan
| | - A Seki
- National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-0074, Japan
| | - T Nakamura
- Sanno Hospital, 8-10-16 Akasaka, Minato, Tokyo 107-0052, Japan
| | - H Ikegami
- Toho University, 2-17-6 Ohashi, Meguro, Tokyo 153-8515, Japan
| | - S Takayama
- National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-0074, Japan
| | - M Nakamura
- Keio University School of Medicine, 35 Shinano-machi, Shinjuku, Tokyo 160-8582, Japan
| | - M Matsumoto
- Keio University School of Medicine, 35 Shinano-machi, Shinjuku, Tokyo 160-8582, Japan
| | - K Sato
- Keio University School of Medicine, 35 Shinano-machi, Shinjuku, Tokyo 160-8582, Japan
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13
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Tajima N, Kadowaki T, Odawara M, Minamide T, Seki A, Oki K, Nagayasu R, Ferreira JCA. Safety and efficacy of addition of sitagliptin to rapid-acting insulin secretagogues for glycemic control, including post-prandial hyperglycemia, among Japanese with type 2 diabetes mellitus. Diabetol Int 2015; 7:155-166. [PMID: 30603259 DOI: 10.1007/s13340-015-0230-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/12/2015] [Accepted: 08/03/2015] [Indexed: 11/30/2022]
Abstract
The safety and efficacy of sitagliptin as add-on therapy to glinides, rapid-acting insulin secretagogues, were evaluated for Japanese patients with type 2 diabetes mellitus. This 52-week study consisted of a 12-week double-blind period, followed by a 40-week open-label period. During the double-blind period, patients were randomized to sitagliptin 50 mg q.d. (S/S group) or placebo (P/S group) as add-on therapy to glinide monotherapy. During the open-label period, all patients in both groups were administered sitagliptin 50 mg q.d. (or 100 mg q.d. after up-titration). During the double-blind period, the overall occurrence of adverse experiences (AE) was similar in both treatment groups. The frequency of reported AE of hypoglycemia in both groups was low and not notably different. The nature of clinical AE during the open-label period for both groups was not notably different from that of clinical AE in the sitagliptin group during the double-blind period. The between-group difference in HbA1c least squares (LS) mean of change from baseline (95 % CI) at Week 12 was -1.1 % (-1.3, -0.8) in favor of sitagliptin (P < 0.001). LS mean of reductions from baseline of fasting plasma glucose and 2-h postmeal glucose were significantly greater in the sitagliptin group than in the placebo group: -23.1 mg/dL (-32.2, -13.9) and -51.2 mg/dL (-67.4, -35.0), respectively (both P < 0.001). The changes from baseline in glycemic data in the S/S group remained generally stable throughout the 52-week treatment period.
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Affiliation(s)
- Naoko Tajima
- 1Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Kadowaki
- 2Department of Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masato Odawara
- 3The Department of Diabetology, Endocrinology, Metabolism and Rheumatology, Tokyo Medical University, Tokyo, Japan
| | - Toshiomi Minamide
- 4Ono Pharmaceutical Co., Ltd., 8-2, Kyutaromachi 1-chome, Chuo-ku, Osaka, 541-8564 Japan
| | - Akiteru Seki
- 4Ono Pharmaceutical Co., Ltd., 8-2, Kyutaromachi 1-chome, Chuo-ku, Osaka, 541-8564 Japan
| | - Kaori Oki
- 4Ono Pharmaceutical Co., Ltd., 8-2, Kyutaromachi 1-chome, Chuo-ku, Osaka, 541-8564 Japan
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14
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Seki A, Saito O, Nago H, Suzuki K, Tomishima K, Saito K, Takemiya H. Development of a software platform for providing environmental monitoring data for the Fukushima Daiichi nuclear accident. Radiat Prot Dosimetry 2015; 164:97-102. [PMID: 25536964 DOI: 10.1093/rpd/ncu355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In nuclear emergencies, it is especially important to carry out a wide range of environmental monitoring and provide the data immediately so as to understand the current distribution of radionuclides and investigate countermeasures. Therefore, it is indispensable for a nuclear emergency response to establish a system that supports rapid provision of these data. The authors have been developing the software platform by integrating technologies of environmental monitoring, information processing and network communication, based on the experience of the Fukushima Daiichi Nuclear Accident. It was discovered that the platform is effective in reducing the time needed to publish the monitoring data. Reducing the cost and workload for publishing the monitoring data is also important because monitoring should be continued over a few decades in the case of the Fukushima accident. The authors' platform is expected to help to mitigate the problem, too.
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Affiliation(s)
- A Seki
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - O Saito
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - H Nago
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Suzuki
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Tomishima
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Saito
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - H Takemiya
- Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
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15
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Niizeki H, Shiohama A, Sasaki T, Seki A, Kabashima K, Otsuka A, Takeshita M, Hirakiyama A, Okuyama T, Tanese K, Ishiko A, Amagai M, Kudoh J. The novel SLCO2A1 heterozygous missense mutation p.E427K and nonsense mutation p.R603* in a female patient with pachydermoperiostosis with an atypical phenotype. Br J Dermatol 2015; 170:1187-9. [PMID: 24329728 DOI: 10.1111/bjd.12790] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H Niizeki
- Department of Dermatology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan.
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16
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Takahashi J, Nihei T, Takagi Y, Miyata S, Odaka Y, Tsunoda R, Seki A, Sumiyoshi T, Matsui M, Goto T, Tanabe Y, Sueda S, Momomura SI, Yasuda S, Ogawa H, Shimokawa H. Prognostic impact of chronic nitrate therapy in patients with vasospastic angina: multicentre registry study of the Japanese coronary spasm association. Eur Heart J 2014; 36:228-37. [DOI: 10.1093/eurheartj/ehu313] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Furuse J, Gemma A, Hatori T, Okusaka T, Seki A. Final Safety Analysis of Erlotinib Plus Gemcitabine in a Post-Marketing Surveillance Study (Polaris) of >800 Japanese Pancreatic Cancer Patients. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Niizeki H, Shiohama A, Sasaki T, Seki A, Kabashima K, Otsuka A, Kosaki K, Ogo A, Yamada T, Miyasaka M, Matsuoka K, Hirakiyama A, Okuyama T, Matsuda M, Nakabayashi K, Tanese K, Ishiko A, Amagai M, Kudoh J. The complete type of pachydermoperiostosis: a novel nonsense mutation p.E141* of the SLCO2A1 gene. J Dermatol Sci 2014; 75:193-5. [PMID: 24929850 DOI: 10.1016/j.jdermsci.2014.05.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/02/2014] [Accepted: 05/23/2014] [Indexed: 10/25/2022]
Affiliation(s)
- H Niizeki
- Department of Dermatology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan.
| | - A Shiohama
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan; Laboratory of Gene Medicine, Keio University School of Medicine, Tokyo, Japan
| | - T Sasaki
- Center for Integrated Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - A Seki
- Department of Orthopedics, National Center for Child Health and Development, Tokyo, Japan
| | - K Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - A Otsuka
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kosaki
- Department of Orthopedic Surgery, University of Tokyo, Tokyo, Japan
| | - A Ogo
- Department of Metabolism and Endocrinology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - T Yamada
- Department of Dermatology, Himeji Red Cross Hospital, Hyogo, Japan
| | - M Miyasaka
- Department of Radiology, National Center for Child Health and Development, Tokyo, Japan
| | - K Matsuoka
- Department of Pathology, National Center for Child Health and Development, Tokyo, Japan
| | - A Hirakiyama
- Department of Laboratory Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - T Okuyama
- Department of Laboratory Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - M Matsuda
- Department of Dermatology, National Center for Child Health and Development, Tokyo, Japan
| | - K Nakabayashi
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Tanese
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - A Ishiko
- Department of Dermatology, School of Medicine, Toho University, Ota-ku, Tokyo, Japan
| | - M Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - J Kudoh
- Laboratory of Gene Medicine, Keio University School of Medicine, Tokyo, Japan
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19
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Kishi T, Miyamae T, Seki A, Shioda M, Ishigaki K, Morimoto R, Ishiguro N, Hamaguchi Y, Fujimoto M, Kawaguchi Y, Yamanaka H, Nagata S. PReS-FINAL-2125: A Japanese girl with childhood-onset anti-Ku antibody positive generalized morphea-myositis overlap syndrome. Pediatr Rheumatol Online J 2013. [PMCID: PMC4045130 DOI: 10.1186/1546-0096-11-s2-p137] [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: 11/18/2022] Open
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20
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Kosova F, Cetin B, Akinci M, Aslan S, Seki A, Pirhan Y, Ari Z. Serum copper levels in benign and malignant thyroid diseases. ACTA ACUST UNITED AC 2013; 113:718-20. [PMID: 23173630 DOI: 10.4149/bll_2012_162] [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: 11/08/2022]
Abstract
OBJECTIVE To examine the changes in serum copper (Cu) levels in benign and malignant thyroid disease in humans. BACKGROUND Thyroid hormones influence the metabolism of trace elements including copper. METHODS 47 papillary thyroid cancer and 43 benign multinodular goitre patients who underwent total thyroidectomy and 37 healthy control subjects were included into this study. All of the patients and controls were females. Serum Cu levels were detected with atomic absorption spectrophotometer. RESULTS In the papillary thyroid cancer group serum level of Cu was 131.61 ± 33.9 μg/dL before surgery and 120.81 ± 30.4 μg/dL after 20 days from surgery. In the benign group serum Cu level was 84.75 ± 12.1 μg/dL and 68.01 ± 9.4 μg/dL postoperatively.These results were compared to healthy control's value of 105.87 ± 10.68 μg/dL. In the papillary thyroid cancer group pre- and postoperative serum Cu level was significantly higher when compared to control group (p<0.05). Postoperative serum Cu level significantly decreased when compared to pre-operative level(p<0.05), in which, it was still higher than the control(p<0.05). In the benign group pre- and postoperative serum Cu level was significantly lower than in the control group (p<0.05).Postoperative serum Cu level significantly decreased when compared to pre-operative level in the benign group (p<0.05). CONCLUSION This is a pioneer study to examine serum Cu level in benign and malignant thyroid patients compared to controls. In our small groups serum Cu levels increased in malignant thyroid patients and decreased in the benign group (Tab. 1, Ref. 18).
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Affiliation(s)
- F Kosova
- Celal Bayar University, Department of Biochemistry, Manisa, Turkey
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21
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Kiyohara Y, Yamazaki N, Seki A, Fukuoka M. Analysis of Erlotinib-Related Skin Toxicities from Japanese Post-Marketing Surveillance (Polarstar) in 9,909 Non-Small-Cell Lung Cancer (NSCLC) Patients (PTS). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33896-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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22
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Ohe Y, Fukuoka M, Kudoh S, Nakagawa K, Johkoh T, Ando M, Yamazaki N, Takemoto S, Seki A. 9129 POSTER Safety Profile and Efficacy of Erlotinib in a Japanese Post-marketing Surveillance Study of 10,708 Non-small-cell Lung Cancer (NSCLC) Patients (pts) – Interim Analyses From the First 3,488 Pts. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72441-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Ohe Y, Fukuoka M, Kudoh S, Nakagawa K, Johkoh T, Ando M, Yamazaki N, Takemoto S, Seki A. Post-marketing surveillance of erlotinib for NSCLC in Japan: Interim analyses of 3,488 patients (Pts). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e18007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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24
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Kawai T, Kusakabe H, Seki A, Kobayashi S, Onodera M. Osteomyelitis due to trimethoprim/sulfamethoxazole-resistant Edwardsiella tarda infection in a patient with X-linked chronic granulomatous disease. Infection 2011; 39:171-3. [DOI: 10.1007/s15010-011-0080-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 01/03/2011] [Indexed: 10/18/2022]
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Kambe T, Maruyama T, Naganawa A, Asada M, Seki A, Maruyama T, Nakai H, Toda M. Discovery of an 8-Aza-5-thiaProstaglandin E1 Analog as a Highly Selective EP4 Receptor Agonist. Chem Pharm Bull (Tokyo) 2011; 59:1494-508. [DOI: 10.1248/cpb.59.1494] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Tohru Kambe
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Toru Maruyama
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | | | - Masaki Asada
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Akiteru Seki
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | | | - Hisao Nakai
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Masaaki Toda
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
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Kambe T, Maruyama T, Nakano M, Yamaura Y, Shono T, Seki A, Sakata K, Maruyama T, Nakai H, Toda M. Discovery of Orally Available 8-Aza-5-thiaProstaglandin E1 Analogs as Highly Selective EP4 Agonists. Chem Pharm Bull (Tokyo) 2011; 59:1523-34. [DOI: 10.1248/cpb.59.1523] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Tohru Kambe
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Toru Maruyama
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | | | | | | | - Akiteru Seki
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Kiyoto Sakata
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | | | - Hisao Nakai
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
| | - Masaaki Toda
- Minase Research Institute, Ono Pharmaceutical Co., Ltd
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Affiliation(s)
- T Mori
- Laboratory of Veterinary Clinical Oncology, Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
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Kubo M, Kikukawa T, Miyauchi S, Seki A, Kamiya M, Aizawa T, Kawano K, Kamo N, Demura M. Role of Arg123 in Light-driven Anion Pump Mechanisms ofpharaonisHalorhodopsin. Photochem Photobiol 2009; 85:547-55. [DOI: 10.1111/j.1751-1097.2009.00538.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Takahashi F, Shigemori Y, Seki A. Accurate dose assessment system for an exposed person utilising radiation transport calculation codes in emergency response to a radiological accident. Radiat Prot Dosimetry 2009; 133:35-43. [PMID: 19181661 DOI: 10.1093/rpd/ncp002] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A system has been developed to assess radiation dose distribution inside the body of exposed persons in a radiological accident by utilising radiation transport calculation codes-MCNP and MCNPX. The system consists mainly of two parts, pre-processor and post-processor of the radiation transport calculation. Programs for the pre-processor are used to set up a 'problem-dependent' input file, which defines the accident condition and dosimetric quantities to be estimated. The program developed for the post-processor part can effectively indicate dose information based upon the output file of the code. All of the programs in the dosimetry system can be executed with a generally used personal computer and accurately give the dose profile to an exposed person in a radiological accident without complicated procedures. An experiment using a physical phantom was carried out to verify the availability of the dosimetry system with the developed programs in a gamma ray irradiation field.
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Affiliation(s)
- F Takahashi
- Japan Atomic Energy Agency (JAEA), Shirakata 2-4, Tokai-mura, Ibaraki 319-1195, Japan.
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Hasegawa C, Kikukawa T, Miyauchi S, Seki A, Sudo Y, Kubo M, Demura M, Kamo N. Interaction of the Halobacterial Transducer to a Halorhodopsin Mutant Engineered so as to Bind the Transducer: Cl− Circulation Within the Extracellular Channel†. Photochem Photobiol 2007; 83:293-302. [PMID: 16978043 DOI: 10.1562/2006-06-09-ra-916] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [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: 11/19/2022]
Abstract
An alkali-halophilic archaeum, Natronomonas pharaonis, contains two rhodopsins that are halorhodopsin (phR), a light-driven inward Cl- pump and phoborhodopsin (ppR), the receptor of negative phototaxis functioning by forming a signaling complex with a transducer, pHtrII (Sudo Y. et al., J. Mol. Biol. 357 [2006] 1274). Previously, we reported that the phR double mutant, P240T/F250Y(phR), can bind with pHtrII. This mutant itself can transport Cl-, while the net transport was stopped upon formation of the complex. The flash-photolysis data were analyzed by a scheme in which phR --> 4 P1 --> P2 --> 4 P3 --> P4 --> phR. The P3 of the wild-type and the double mutant contained two components, X- and O-intermediates. After the complex formation, however, the P3 of the double mutant lacked the X-intermediate. These observations imply that the X-intermediate (probably the N-intermediate) is the state having Cl- in the cytoplasmic binding site and that the complex undergoes an extracellular Cl- circulation because of the inhibition of formation of the X-intermediate.
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Affiliation(s)
- Chisa Hasegawa
- Laboratory of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
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31
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Seki A, Miyauchi S, Hayashi S, Kikukawa T, Kubo M, Demura M, Ganapathy V, Kamo N. Heterologous expression of Pharaonis halorhodopsin in Xenopus laevis oocytes and electrophysiological characterization of its light-driven Cl- pump activity. Biophys J 2007; 92:2559-69. [PMID: 17208978 PMCID: PMC1864822 DOI: 10.1529/biophysj.106.093153] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [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: 11/18/2022] Open
Abstract
Natronomonas pharaonis halorhodopsin (pHR) is an archaeal rhodopsin functioning as an inward-directed, light-driven Cl- pump. To characterize the electrophysiological features of the Cl- pump activity of pHR, we expressed pHR in Xenopus laevis oocytes and analyzed its photoinduced Cl- pump activity using the two-electrode voltage-clamp technique. Photoinduced outward currents were observed only in the presence of Cl-, Br-, I-, NO3-, and SCN-, but not in control oocytes, indicating that photoinduced anion currents were mediated by pHR. The relationship between photoinduced Cl- current via pHR and the light intensity was linear, demonstrating that transport of Cl- is driven by a single-photon reaction and that the steady-state current is proportional to the excited pHR molecule. The current-voltage relationship for pHR-mediated photoinduced currents was also linear between -150 mV and +50 mV. The slope of the line describing the current-voltage relationship increased as the number of the excited pHR molecules was increased by the light intensity. The reversal potential (VR) for Cl- as the substrate for the anion pump activity of pHR was about -400 mV. The value for VR was independent of light intensity, meaning that the VR reflects the intrinsic value of the excited pHR molecule. The value of VR changed significantly for the R123K mutant of pHR. We also show that the Cl- pump activity of pHR can generate a substantial negative membrane potential, indicating that pHR is a very potent Cl- pump. We have also analyzed the kinetics of voltage-dependent Cl- pump activity as well as that of the photocycle. Based on these data, a kinetic model for voltage-dependent Cl- transport via pHR is presented.
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Affiliation(s)
- Akiteru Seki
- Graduate School of Pharmaceutical Sciences, Laboratory of Biomolecular Systems, Creative Research Initiative Sosei, and Department of Biomolecular Science, Faculty of Advanced Life Sciences, Hokkaido University, Sapporo, Japan
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32
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Kondo A, Saito Y, Kageyama H, Seki A, Nanba Y, Okamoto R, Inoue T, Kawamoto K, Fujiwara K, Shimizu N, Maegaki Y, Ohno K. [Marked arytenoid edema in severely disabled children with gastroesophageal reflux]. No To Hattatsu 2006; 38:468-9. [PMID: 17094569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
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33
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Furukawa H, Ikuma H, Seki A, Yokoe K, Yuen S, Aramaki T, Yamagushi S. Positron emission tomography scanning is not superior to whole body multidetector helical computed tomography in the preoperative staging of colorectal cancer. Gut 2006; 55:1007-11. [PMID: 16361308 PMCID: PMC1856325 DOI: 10.1136/gut.2005.076273] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [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: 01/11/2023]
Abstract
BACKGROUND The role of positron emission tomography with the glucose analogue [18F] fluoro-2-deoxy-D-glucose (FDG-PET) in the initial staging of disease in patients with primary colorectal cancer (CRC) has not been adequately assessed. AIMS To evaluate the additional value of FDG-PET as a staging modality, complementary to routine multidetector row computed tomography (MDCT) in patients with CRC. METHODS Forty four patients with CRC underwent preoperative MDCT and FDG-PET. The accuracy of intraoperative macroscopic staging was also investigated compared with histopathological diagnosis. All FDG-PET images were evaluated with respect to detectability of the primary tumour, lymph node involvement, and distant metastases. Both MDCT and FDG-PET diagnoses and treatment plan were compared with surgical and histopathological results. RESULTS Thirty seven patients underwent surgery. Tumour detection rate was 95% (42/44) for MDCT, 100% (44/44) for FDG-PET, and 100% (37/37) for intraoperative macroscopic diagnosis. Pathological diagnosis of T factor was T1 in five, T2 in four, T3 in 24, and T4 in four cases. Concordance rate with pathological findings of T factor was 57% (21/37) for MDCT and 62% (23/37) for macroscopic diagnosis. Lymph node involvement was pathologically positive in 19 cases. Regarding N factor, overall accuracy was 62% (23/37) for MDCT, 59% (22/37) for FDG-PET, and 70% (26/37) for macroscopic diagnosis. For all 44 patients, FDG-PET findings resulted in treatment changes in only one (2%) patient. CONCLUSION FDG-PET is not superior to routine MDCT in the initial staging of primary CRC.
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Affiliation(s)
- H Furukawa
- Division of Diagnostic Radiology, Shizuoka Cancer Centre Hospital, 1007, Nagaizumi-cho, Suntogun, Shizuoka, 411-8777, Japan.
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34
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Kasukawa Y, Miyakoshi N, Itoi E, Tsuchida T, Tamura Y, Kudo T, Suzuki K, Seki A, Sato K. Effects of h-PTH on cancellous bone mass, connectivity, and bone strength in ovariectomized rats with and without sciatic-neurectomy. J Orthop Res 2004; 22:457-64. [PMID: 15099621 DOI: 10.1016/j.orthres.2003.08.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2003] [Accepted: 08/20/2003] [Indexed: 02/04/2023]
Abstract
The purpose of this study was to determine whether h-PTH (1-34) treatment would recover cancellous bone connectivity and bone strength in ovariectomized (OVX) or ovariectomized and sciatic-neurectomized (OVX+NX) rats. Seven-month-old female Wistar rats were treated with h-PTH or vehicle (6.0 microg/kg, six times a week, subcutaneously) for four weeks beginning 4, 8, or 12 weeks after OVX or OVX+NX. These were compared to age-matched baseline and sham-operated groups. Right tibiae were used for bone histomorphometry and node-strut analysis, and left tibiae were used for mechanical testing. The bone formation rates in the OVX and OVX+NX rats treated with h-PTH were significantly higher than those in their baseline controls. h-PTH treatment increased the node numbers and failure energies in the OVX rats, compared to their baseline controls, at all time points. However, in the OVX+NX rats, the effects of h-PTH treatment on the node number and failure energy were observed only at four weeks after surgery, but not at eight weeks or 12 weeks after surgery. These results suggest that the lowest limit, at which trabecular connectivity and bone strength are able to be restored by h-PTH, occurred between four and eight weeks in OVX+NX rats, but not in OVX rats. h-PTH cannot recover trabecular connectivity and bone strength in advanced osteopenia.
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Affiliation(s)
- Y Kasukawa
- Department of Orthopedic Surgery, Akita University School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
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35
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Maruyama T, Kuwabe SI, Kawanaka Y, Shiraishi T, Shinagawa Y, Sakata K, Seki A, Kishida Y, Yoshida H, Maruyama T, Ohuchida S, Nakai H, Hashimoto S, Kawamura M, Kondo K, Toda M. Design and synthesis of a selective EP4-receptor agonist. Part 4: practical synthesis and biological evaluation of a novel highly selective EP4-receptor agonist. Bioorg Med Chem 2002; 10:2103-10. [PMID: 11983506 DOI: 10.1016/s0968-0896(02)00085-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A practical method of synthesizing a highly selective EP4-receptor agonist 1 using Corey lactone 2 as a key intermediate was developed. Selective methanesulfonylation of the primary alcohol of the diol 8 under the newly devised conditions followed by the protection of the remaining secondary alcohol are key reactions in this new method. Further biological evaluation of 1a-b is also reported.
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Affiliation(s)
- Toru Maruyama
- Minase Research Institute, Ono Pharmaceutical Co., Ltd., Shimamoto, Mishima, Osaka 618-8585, Japan.
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36
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Maruyama T, Asada M, Shiraishi T, Sakata K, Seki A, Yoshida H, Shinagawa Y, Maruyama T, Ohuchida S, Nakai H, Kondo K, Toda M. Design and synthesis of a highly selective EP4-receptor agonist. Part 2: 5-thia and 9beta-haloPG derivatives with improved stability. Bioorg Med Chem Lett 2001; 11:2033-5. [PMID: 11454474 DOI: 10.1016/s0960-894x(01)00365-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Further chemical modification to identify more chemically stabilized EP4-receptor selective agonists was continued. As a result, a further two EP4-receptor selective agonists 5-thiaPGE(1) 2a, 10 and 9beta-chloroPGF(2) analogue 11 were discovered.
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Affiliation(s)
- T Maruyama
- Minase Research Institute, Ono Pharmaceutical Co., Ltd., Shimamoto, Mishima, 618-8585, Osaka, Japan.
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Abstract
A functional magnetic resonance imaging (fMRI) study during Japanese 'kana' readings was performed on Japanese dyslexic children. Five dyslexic children (aged 9-12 years) and five healthy children (aged 9-11 years) were investigated. The fMRI examination was performed by getting these children to read sentences constructed from Japanese phonograms, 'kana', compared with staring at meaningless figures as a control task. All control subjects showed activation of the left middle temporal gyrus. In the dyslexic children, the activation of the middle temporal gyrus was rather vague. However, other distinctively activated regions were detected as follows: the bilateral occipital cortex in two dyslexics, the inferior part of the frontal regions in two other dyslexics, and both the bilateral occipital cortex and the inferior part of precentral gyrus in the remaining one. These results indicate compensatory management processes for the unskilled reading ability of dyslexic children. The present results were similar to previous ones for adult dyslexia with the Roman alphabet, and suggest that brain malfunction in dyslexia during the task of reading must be common despite differences in languages.
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Affiliation(s)
- A Seki
- Division of Child Neurology, Institute of Neurological Sciences, Faculty of Medicine, Tottori University, 36-1 Nishi-machi, 683-8504, Yonago, Japan.
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38
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Kawagoe Y, Ogawa H, Seki A, Fujiu K, Kimura H, Kasanuki H. [The role of cardiac catheterization for diagnosis and treatment of pulmonary hypertension]. Nihon Rinsho 2001; 59:1093-8. [PMID: 11411119] [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: 02/20/2023]
Abstract
The role of the cardiac catheterization for diagnosis and treatment of pulmonary hypertension (PH) is very important. When mean pulmonary artery pressure increased more than 25 mmHg, then PH is defined. But this is measured accurately only by the catheterization. And we can discriminate the etiology of PH clearly by pulmonary capillary wedge pressure (Ppcw) or intra-cardiac shunt (L to R) by blood oxygen saturation step-up, and both parameters are obtained by this method. The etiology of PH is diagnosed as left sided heart failure, if Ppcw is increased more than 13 mmHg. PH is produced by congenital heart disease (ASD, VSD, PDA etc.), when the oxygen saturation step-up is recognized. And PH is induced by any pulmonary disease or pulmonary thrombo-embolism or collagen disease or liver cirrhosis or PPH, if Ppcw is normal and no oxygen step-up is recognized.
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Affiliation(s)
- Y Kawagoe
- Department of Cardiology, Shinmatsudo Central General Hospital
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39
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Akashi Y, Tanabe K, Osada N, Samejima H, Seki A, Yokoyama Y, Nakayama M, Suzuki N, Oomiya K, Itoh H, Miyake F, Murayama M. [Effect of angiotensin converting enzyme inhibitor lisinopril on sympathetic heart rate response during exercise in the early phase of acute myocardial infarction]. J Cardiol 2000; 36:221-9. [PMID: 11079227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
OBJECTIVES Sympathetic heart rate response decreases in patients with left ventricular dysfunction. Angiotensin converting enzyme (ACE) inhibitors effectively prevent heart failure after myocardial infarction. However, the effect of ACE inhibitors on heart rate response is not well known. The present study investigated the effect of ACE inhibitors on sympathetic heart rate response in the early phase of acute myocardial infarction. METHODS Sixty-five patients with acute myocardial infarction receiving no beta-blocking agents participated in the study. The subjects consisted of 25 patients (mean age 60.2 +/- 10.7 years) treated with ACE inhibitor lisinopril from the initial stage and 40 control subjects (mean age 57.7 +/- 7.6 years). Cardiopulmonary exercise testing with a treadmill was performed using the ramp protocol in the first month and the third month after the onset of the disease. Heart rate (HR) was measured in the resting state (rest) and immediately after peak exercise (peak). At the same time, blood samples were obtained to investigate the changes in the plasma level of norepinephrine (NE). The degree of sympathetic heart rate response was evaluated as follows: (peak HR - rest HR)/¿(peak NE - rest NE)/rest NE¿ x 100. RESULTS There were no significant differences between the 2 groups in the first month in anaerobic threshold, peak oxygen uptake and plasma brain natriuretic peptide concentration. Though the change of heart rate was not significant, the change in the plasma level of norepinephrine was significantly lower in the lisinopril group (9.3 +/- 4.4 vs 5.7 +/- 2.8, p < 0.01). In the first month, the heart rate response in the control group was markedly lower than that in the lisinopril group (8.7 +/- 3.5 vs 15.2 +/- 8.5 beats/min/%, p < 0.01). In the third month, the significant difference between the 2 groups disappeared (10.7 +/- 7.9 vs 14.0 +/- 9.7 beats/min/%, NS) due to the increase of the value in the control subjects. CONCLUSIONS From these results, we conclude that ACE inhibitors are effective to improve sympathetic heart rate response during exercise in the early phase of myocardial infarction.
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Affiliation(s)
- Y Akashi
- Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki
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40
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Seki A, Yoshinouchi M, Seki N, Kodama J, Miyagi Y, Kudo T. Detection of c-erbB-2 and FGF-3 (INT-2) gene amplification in epithelial ovarian cancer. Int J Oncol 2000; 17:103-6. [PMID: 10853025 DOI: 10.3892/ijo.17.1.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We examined gene amplifications of the c-erbB-2 and FGF-3 gene in 48 epithelial ovarian cancers by differential PCR and addressed their association with clinico-pathological features including clinical outcome. Overall, 25.0 and 20.8% of ovarian cancers displayed amplified c-erbB-2 or FGF-3 gene, respectively. Amplification of the c-erbB-2 gene was significantly associated with particular histological cell types, higher histological grade, and low levels of serous CA125. However, there was no correlation between c-erbB-2 gene amplification and patient outcome. No correlation was observed between FGF-3 gene amplification and any clinico-pathological features including overall survival. These findings suggested that c-erbB-2 or FGF-3 gene amplification might be one of the oncogenic events implicated in the development of ovarian cancers, yet is not a useful prognostic marker.
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Affiliation(s)
- A Seki
- Department of Obstetrics and Gynecology, Okayama University Medical School, Japan
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41
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Seki A. [Hypertensive emergency]. Nihon Rinsho 2000; 58 Suppl 2:392-6. [PMID: 11028364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- A Seki
- Medical Clinic, Ministry of International Trade and Industry
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42
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Tanabe K, Yamamoto A, Suzuki N, Yokoyama Y, Osada N, Nakayama M, Akashi Y, Seki A, Samejima H, Oya M, Murabayashi T, Omiya K, Itoh H, Miyake F, Murayama M. Physiological role of endothelin-1 in nonworking muscles during exercise in healthy subjects. Jpn Circ J 2000; 64:27-31. [PMID: 10651203 DOI: 10.1253/jcj.64.27] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Endothelin-1 (ET-1) is a potent vasoconstrictor peptide produced by vascular endothelial cells. However, the role of ET-1 in exercise-induced physiological responses is still to be investigated. The purpose of the present study was to investigate in healthy volunteers whether the ET-1 plasma concentration in nonworking muscles is changed by exercise and to investigate the physiological role of ET-1 during exercise. Bicycle ergometer cardiopulmonary exercise tests were performed in 36 healthy men (mean age, 22.5 years). Blood samples for measuring ET-1 were drawn from the cubital vein during rest and immediately after the exercise test. The ET-1 change ratio was calculated as ET-1 immediately following exercise/ET-1 during the resting state. Cardiac output (CO) was measured during the exercise test by the impedance method. Arterial venous oxygen difference (AVO2D) when CO reached 10L/min or 15L/min was calculated as AVO2D = VO2/CO. Results were as follows: (1) the ET-1 change ratio correlated inversely with exercise time at the anaerobic threshold (r = -0.37, p = 0.03) and peak exercise time (r = -0.35, p = 0.04); (2) the ET-1 change ratio tended toward an inverse correlation with deltaVO2/deltawork rate (r = -0.29, p = 0.09); (3) the ET-1 change ratio correlated positively with AVO2D when CO reached 10L/min (r = 0.42, p = 0.02) and tended toward a positive correlation with AVO2D when CO reached 15 L/min (r = 0.32, p = 0.08). These results indicate that an increase in ET-1 in nonworking muscles may participate in the exercise-induced redistribution of blood flow and in increasing the blood flow to working muscles.
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Affiliation(s)
- K Tanabe
- Department of Cardiology, St Marianna University School of Medicine, Kawasaki, Japan
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43
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Nose H, Seki A, Yaguchi T, Hosoya A, Sasaki T, Hoshiko S, Shomura T. PF1163A and B, new antifungal antibiotics produced by Penicillium sp. I. Taxonomy of producing strain, fermentation, isolation and biological activities. J Antibiot (Tokyo) 2000; 53:33-7. [PMID: 10724005 DOI: 10.7164/antibiotics.53.33] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel antifungal antibiotics, PF1163A and B, were isolated from the fermentation broth of Penicillium sp. They were purified from the solid cultures of rice media using ethyl acetate extraction, silica gel and Sephadex LH-20 column chromatographies. PF1163A and B showed potent growth inhibitory activity against pathogenic fungal strain Candida albicans but did not show cytotoxic activity against mammalian cells. These compounds inhibited the ergosterol biosynthesis in Candida albicans.
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Affiliation(s)
- H Nose
- Drug Discovery, Pharmaceutical Research Center, Meiji Seika Kaisha Ltd, Yokohama, Japan
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44
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Seki A. [Malignant hypertension]. Nihon Rinsho 2000; 58 Suppl 1:795-9. [PMID: 11026382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- A Seki
- Medical Clinic, Ministry of International Trade and Industry
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45
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Abstract
In this study the kinematics of partial and total ruptures of the medial collateral ligament of the elbow are investigated. After selective transection of the medial collateral ligament of 8 osteoligamentous intact elbow preparations was performed, 3-dimensional measurements of angular displacement, increase in medial joint opening, and translation of the radial head were examined during application of relevant stress. Increase in joint opening was significant only after complete transection of the anterior part of the medial collateral ligament was performed. The joint opening was detected during valgus and internal rotatory stress only. After partial transection of the anterior bundle of the medial collateral ligament was performed, there was an elbow laxity to valgus and internal rotatory force, which became significant after transection of 100% of the anterior bundle of the medial collateral ligament and was maximum between 70 degrees to 90 degrees of flexion. No radial head movement was seen after partial or total transection of the anterior bundle of the medial collateral ligament was performed. In conclusion, this study indicates that valgus or internal rotatory elbow instability should be evaluated at 70 degrees to 90 degrees of flexion. Detection of partial ruptures in the anterior bundle of the medial collateral ligament based on medial joint opening and increased valgus movement is impossible.
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Affiliation(s)
- D Eygendaal
- Department of Orthopaedic Surgery, Academic Hospital Leiden, The Netherlands
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46
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Deguchi H, Sato B, Ohshima M, Seki A, Yamamoto M, Naito H, Nishida N, Yutani C, Kitamura S. A case of interleukin-6-producing malignant fibrous histiocytoma originating in the heart. Jpn J Clin Oncol 1999; 29:382-6. [PMID: 10494922 DOI: 10.1093/jjco/29.8.382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/14/2022] Open
Abstract
Primary cardiac malignant fibrous histiocytoma is extremely rare and its pathophysiological characteristics remain largely unknown. We treated a female patient with persistent fever and disseminated intravascular coagulation. Since ultrasonic echocardiography revealed the presence of a cardiac tumor and her serum interleukin-6 level was elevated, we speculated she had a cardiac myxoma. Histological examination of the surgically resected specimen, however, revealed that the tumor was malignant fibrous histiocytoma. Although her disseminated intravascular coagulation and heart failure were transiently improved after operation, local recurrence and systemic metastasis occurred and she died 7 weeks after operation. Using the autopsied specimen, we examined whether the malignant fibrous histiocytoma constitutively synthesized interleukin-6. The interleukin-6 content in the tumor was high, consistent with interleukin-6 production by the tumor. This was confirmed by immunohistochemical analysis. To our knowledge, this is the first report demonstrating interleukin-6 production by a cardiac malignant fibrous histiocytoma.
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Affiliation(s)
- H Deguchi
- Third Department of Internal Medicine, Nissay Hospital, Nippon Life Saiseikai Foundation, Osaka, Japan.
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47
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Tanabe K, Yamamoto A, Suzuki N, Akashi Y, Seki A, Samejima H, Oya M, Murabayashi T, Nakayama M, Yokoyama Y, Osada N, Omiya K, Itoh H, Miyake F, Murayama M. Exercise-induced changes in plasma atrial natriuretic peptide and brain natriuretic peptide concentrations in healthy subjects with chronic sleep deprivation. Jpn Circ J 1999; 63:447-52. [PMID: 10406584 DOI: 10.1253/jcj.63.447] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Recent observations have shown that plasma levels of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) correlate with cardiac function or prognosis in heart failure patients. However, relatively little is known about changes in their plasma concentration during commonly occurring physiological states such as fatigue. Therefore, this study was designed to examine the physiological changes of plasma ANP and BNP concentrations using a chronic sleep-deprivation model. Bicycle ergometer cardiopulmonary exercise tests were performed in 10 healthy volunteers (mean age: 22.7 years). Blood samples for measuring ANP and BNP were drawn during the resting state and immediately after each exercise test. Cardiac output (CO) was measured during the exercise test by the impedance method. The study conditions were designed as follows: (A) a day following a period of normal sleep (control state) and (B) a day preceded by 1 month during which sleep lasted <60% of normal (chronic sleep-deprived state). Results were as follows. (1) Peak oxygen uptake and peak CO decreased during the sleep-deprived state compared with the control state. (2) There was no difference between peak heart rates measured during exercise under the 2 conditions. (3) Plasma ANP concentration during exercise increased significantly during the control state, whereas only a tendency toward increase was observed during the sleep-deprived state. (4) Plasma BNP concentration during exercise tended to increase in the control state compared with the resting state, whereas there was no difference in plasma BNP between after exercise and resting state in the sleep-deprived state. These results indicate that changes of ANP or BNP induced by exercise tended to be decreased by chronic sleep deprivation.
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Affiliation(s)
- K Tanabe
- The Second Department of Internal Medicine, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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Furutani M, Trudeau MC, Hagiwara N, Seki A, Gong Q, Zhou Z, Imamura S, Nagashima H, Kasanuki H, Takao A, Momma K, January CT, Robertson GA, Matsuoka R. Novel mechanism associated with an inherited cardiac arrhythmia: defective protein trafficking by the mutant HERG (G601S) potassium channel. Circulation 1999; 99:2290-4. [PMID: 10226095 DOI: 10.1161/01.cir.99.17.2290] [Citation(s) in RCA: 139] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The congenital long-QT syndrome (LQTS) is an inherited disorder characterized by a prolonged cardiac action potential and a QT interval that leads to arrhythmia. Mutations in the human ether-a-go-go-related gene (HERG), which encodes the rapidly activating component of the delayed rectifier current (IKr), cause chromosome 7-linked LQTS (LQT2). Studies of mutant HERG channels in heterologous systems indicate that the mechanisms mediating LQT2 are varied and include mutant subunits that form channels with altered kinetic properties or nonfunctional mutant subunits. We recently reported a novel missense mutation of HERG (G601S) in an LQTS family that we have characterized in the present work. METHODS AND RESULTS To elucidate the electrophysiological properties of the G601S mutant channels, we expressed these channels in mammalian cells and Xenopus oocytes. The G601S mutant produced less current than wild-type channels but exhibited no change in kinetic properties or dominant-negative suppression when coexpressed with wild-type subunits. To examine the cellular trafficking of mutant HERG channel subunits, enhanced green fluorescent protein tagging and Western blot analyses were performed. These showed deficient protein trafficking of the G601S mutant to the plasma membrane. CONCLUSIONS Our results from both the Xenopus oocyte and HEK293 cell expression systems and green fluorescent protein tagging and Western blot analyses support the conclusion that the G601S mutant is a hypomorphic mutation, resulting in a reduced current amplitude. Thus, it represents a novel mechanism underlying LQT2.
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Affiliation(s)
- M Furutani
- Department of Pediatric Cardiology, The Heart Institute of Japan, Tokyo Women's Medical University, Tokyo, Japan
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Takaya N, Iwase T, Maehara A, Nishiyama S, Nakanishi S, Yamana D, Takei R, Kokubo T, Kohtake H, Furui S, Tomoyasu H, Seki A. Transcatheter embolization of arteriovenous malformations in Cowden disease. Jpn Circ J 1999; 63:326-9. [PMID: 10475785 DOI: 10.1253/jcj.63.326] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A patient with Cowden disease and multiple arteriovenous malformations (AVMs) that resulted in high output heart failure is described. Cowden disease is a familial syndrome characterized by endodermal, mesodermal and ectodermal dysplasia causing benign and malignant tumors of the skin, breast, gastrointestinal tract, and thyroid gland. Our patient had gastrointestinal polyposis, a right renal tumor, a left lung tumor, an adenomatous goiter, and typical dermatologic findings such as facial papules, acral keratosis, gingival papillomatosis and hemangiomas. AVMs were observed in the pelvis, cervical vertebra, liver, and right supraclavicular area. Transcatheter embolization was performed 7 times for the pelvic AVMs, but the effect decreased with repetition and the patient died of heart failure 2 years after the first embolization. The serum levels of tissue plasminogen activator (t-PA), platelet-derived growth factor (PDGF), hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), and transforming growth factor beta1 were high, suggesting that these angiogenic molecules may play a role in the pathogenesis of AVMs in Cowden disease.
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Affiliation(s)
- N Takaya
- Department of Cardiovascular Medicine, Toranomon Hospital, Tokyo, Japan
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Abstract
1. The class Ic anti-arrhythmic agent, flecainide is known to inhibit the transient outward K current (Ito) selectively in human atrium. We studied the effects of propafenone, another class Ic antiarrhythmic agent, on K currents in human atrial myocytes using a whole-cell voltage-clamp method. 2. Propafenone inhibited both Ito and the sustained or ultra-rapid delayed rectifier K current (Isus or Ikur) evoked by depolarization pulses. The concentration for half-maximal inhibition (IC50) was 4.9 microM for Ito and 8.6 microM for Isus. Propafenone blocked Ito and Isus in a voltage- and use-independent fashion and accelerated the inactivation time constant of Ito [from 28.3 to 6.7 ms at 10 microM propafenone]. 3. The steady-state inactivation curve for Ito was unaffected by propafenone. Propafenone did not affect the initial current at depolarizing potentials, but it did produce a block that increased as a function of time after depolarization (time constant of 3.4 ms). This suggests that propafenone preferentially blocked Ito in the open state. 4. Propafenone had no significant effect on the rate at which Ito recovered from inactivation at -80 mV suggesting that propafenone dissociates rapidly from the channel. 5. The steady-state activation curve for Isus was not affected by propafenone. Propafenone slowed the time course of the onset of the Isus tail current. This suggests that propafenone blocked Isus in the open state. 6. The present results suggest that, unlike flecainide, propafenone blocks both Ito and Isus in human atrial myocytes in the open state at clinically relevant concentrations.
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Affiliation(s)
- A Seki
- The Heart Institute of Japan, Tokyo Women's Medical University
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