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Sakanishi Y, Takeuchi J, Suganaga R, Nakayama K, Nishioka Y, Chiba H, Kishi T, Machino A, Mastumura M, Okada T, Suzuki T. Association between administration or recommendation of the human papillomavirus vaccine and primary care physicians' knowledge about vaccination during proactive recommendation suspension: a nationwide cross-sectional study in Japan. BMJ Open 2023; 13:e074305. [PMID: 37993154 PMCID: PMC10668282 DOI: 10.1136/bmjopen-2023-074305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023] Open
Abstract
OBJECTIVE The Japanese government suspended the proactive recommendation of the human papillomavirus vaccine (HPVv) in 2013, and the vaccination rate of HPVv declined to <1% during 2014-2015. Previous studies have shown that the recommendation by a physician affects a recipient's decision to receive a vaccine, and physicians' accurate knowledge about vaccination is important to increase vaccine administration. This study aimed to evaluate the association between physicians' knowledge of vaccination and the administration or recommendation of HPVv by primary care physicians (PCPs) in the absence of proactive recommendations from the Japanese government. DESIGN Cross-sectional study analysed data obtained through a web-based, self-administered questionnaire survey. SETTING The questionnaire was distributed to Japan Primary Care Association (JPCA) members. PARTICIPANTS JPCA members who were physicians and on the official JPCA mailing list (n=5395) were included. PRIMARY AND SECONDARY OUTCOME MEASURES The primary and secondary outcomes were the administration and recommendation of HPVv, respectively, by PCPs. The association between PCPs' knowledge regarding vaccination and each outcome was determined based on their background and vaccination quiz scores and a logistic regression analysis to estimate the adjusted ORs (AORs). RESULTS We received responses from 1084 PCPs and included 981 of them in the analysis. PCPs with a higher score on the vaccination quiz were significantly more likely to administer the HPVv for routine and voluntary vaccination (AOR 2.28, 95% CI 1.58 to 3.28; AOR 2.71, 95% CI 1.81 to 4.04, respectively) and recommend the HPVv for routine and voluntary vaccination than PCPs with a lower score (AOR 2.17, 95% CI 1.62 to 2.92; AOR 1.88, 95% CI 1.32 to 2.67, respectively). CONCLUSIONS These results suggest that providing accurate knowledge regarding vaccination to PCPs may improve their administration and recommendation of HPVv, even in the absence of active government recommendations.
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Affiliation(s)
- Yuta Sakanishi
- Sakanishi Internal Medicine and Pediatrics Clinic, Omuta, Fukuoka, Japan
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
| | - Jiro Takeuchi
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, Nara, Japan
| | - Rei Suganaga
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Tessyoukai Kameda Family Clinic Tateyama, Tateyama, Japan
| | - Kuniko Nakayama
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- My family Clinic Gamagori, Gamagori, Japan
| | - Yosuke Nishioka
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Nishioka Memorial Central Clinic, Shima, Japan
| | - Hiroshi Chiba
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Family Medical Practice Hanoi, Hanoi, Viet Nam
| | - Tomomi Kishi
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Japan Baptist Hospital, Kyoto, Japan
| | | | - Mami Mastumura
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tadao Okada
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Tessyoukai Kameda Family Clinic Tateyama, Tateyama, Japan
| | - Tomio Suzuki
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Department of General Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
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Takahashi T, Sumi T, Michimata H, Nagayama D, Koshino Y, Watanabe H, Yamada Y, Chiba H. Fatal diffuse alveolar hemorrhage caused by acute COVID-19 infection in an unvaccinated patient. QJM 2023; 116:521-522. [PMID: 36727497 DOI: 10.1093/qjmed/hcad018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/03/2023] Open
Affiliation(s)
- T Takahashi
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan and Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - T Sumi
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan and Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Michimata
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan and Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - D Nagayama
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan and Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Koshino
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan and Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Watanabe
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - Y Yamada
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - H Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
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Sumi T, Takahashi T, Michimata H, Nagayama D, Koshino Y, Watanabe H, Yamada Y, Kodama K, Nishikiori H, Chiba H. Exacerbation of hypersensitivity pneumonitis induced by COVID-19. QJM 2023; 116:235-236. [PMID: 36752528 DOI: 10.1093/qjmed/hcad021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/09/2023] Open
Affiliation(s)
- T Sumi
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - T Takahashi
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - H Michimata
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - D Nagayama
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - Y Koshino
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - H Watanabe
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan
| | - Y Yamada
- Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan
| | - K Kodama
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Nishikiori
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
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Michimata H, Sumi T, Keira Y, Nagayama D, Koshino Y, Watanabe H, Yamada Y, Chiba H. Intravascular large B-cell lymphoma with hot lung sign diagnosed by transbronchial lung cryobiopsy. QJM 2022; 115:677-678. [PMID: 35876561 DOI: 10.1093/qjmed/hcac169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - T Sumi
- Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Keira
- Department of Surgical Pathology, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | | | - Y Koshino
- Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, South 1, West 17, Chuo-ku, Sapporo, 060-8556, Japan
| | | | - Y Yamada
- Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan
| | - H Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, South 1, West 17, Chuo-ku, Sapporo, 060-8556, Japan.
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Takeuchi J, Sakanishi Y, Okada T, Nakayama K, Chiba H, Suganaga R, Nishioka Y, Kishi T, Suzuki T. Factors associated between behavior of administrating or recommending mumps vaccine and primary care physicians' knowledge about vaccination: A nationwide cross-sectional study in Japan. J Gen Fam Med 2022; 23:9-18. [PMID: 35004105 PMCID: PMC8721331 DOI: 10.1002/jgf2.471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Japan, the mumps-containing vaccine was withdrawn from routine vaccination in 1993, and it became a voluntary vaccination. This study aimed to evaluate the association between the physicians' knowledge about vaccinations and the administration or recommendation of the mumps vaccine. METHODS We conducted a nationwide cross-sectional study targeting primary care physicians (PCPs) in Japan. We used a web-based self-administered questionnaire by Preventive Medicine and Health Promotion Committee Vaccine Team, the Japan Primary Care Association (JPCA), from March to June in 2019. The outcome of the study was the association between PCPs' knowledge about vaccine and the administration or recommendation of mumps vaccine. We obtained the information on background, subsidies of mumps vaccination for children from the local government, and vaccination quiz scores. We performed logistic regression analysis to estimate the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Among 10,470 PCPs in JPCA, 5075 were excluded. We received responses from 1084 PCPs (20.1%) and enrolled 981 participants in the analysis. PCPs with a higher score on the vaccination quizzes were significantly more likely to administrate the mumps vaccine for adults (adjusted odds ratio [AOR] 1.93, 95% CI 1.45-2.59, p < 0.001) and recommend mumps vaccine to adults than PCPs with a lower score (AOR 1.78, 95% CI 1.33-2.40, p < 0.001). CONCLUSIONS We revealed an association between the administration or recommendation of mumps vaccine and PCPs' better vaccination knowledge.
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Affiliation(s)
- Jiro Takeuchi
- Clinical EpidemiologyHyogo College of MedicineNishinomiyaJapan
| | - Yuta Sakanishi
- Sakanishi Internal Medicine and Pediatrics ClinicOmutaJapan
| | - Tadao Okada
- Tessyoukai Kameda Family Clinic TateyamaTateyamaJapan
| | | | | | - Rei Suganaga
- Tessyoukai Kameda Family Clinic TateyamaTateyamaJapan
| | | | | | - Tomio Suzuki
- Department of General MedicineOsaka Medical and Pharmaceutical UniversityTakatsukiJapan
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Furukawa E, Chen Z, Kubo T, Chelenga M, Wu Y, Chiba H, Yanagawa Y, Katagiri S, Hui S, Nagano M. 100 Effects of days in milk and body condition score loss after parturition on oocyte triacylglycerol content in Holstein cows. Reprod Fertil Dev 2021; 34:287. [PMID: 35231236 DOI: 10.1071/rdv34n2ab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- E Furukawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Z Chen
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - T Kubo
- Dairy Cattle Group, Dairy Research Center, Hokkaido Research Organization, Nakashibetsu, Hokkaido, Japan
| | - M Chelenga
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Y Wu
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - H Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Sapporo, Hokkaido, Japan
| | - Y Yanagawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Katagiri
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Hui
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - M Nagano
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
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7
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Hashimoto T, Azuma Y, Chiba H, Haga J, Satou Y, Kanno H, Tsunoda R. Evaluation of sentinel lymph node by sonography. Breast 2021. [DOI: 10.1016/s0960-9776(21)00129-6] [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: 10/21/2022] Open
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8
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Onishi H, Yamamura O, Ueda S, Shibata M, Enomoto S, Maeda F, Tsubouchi H, Hirobe T, Shimizu S, Kishimoto T, Chiba H, Sasaki K, Hanzawa K, Hamano T, Nakamoto Y, Kaku B, Terasawa H. Deep-vein thrombosis detection rates and consideration of the living environment in a tsunami disaster area during the disaster reconstruction phase: A cross-sectional study. Acta Angiologica 2021. [DOI: 10.5603/aa.2020.0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mifuka O, Kitta T, Takahashi Y, Chiba H, Higuchi M, Togo M, Yamamoto T, Shinohara N. Medical internet of things in innovative health informatics - high-tech bladder and bowel diary supporting solitary elderly patients lives. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33944-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, IshizakiIshizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Erratum to: Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 50:726. [PMID: 32382760 PMCID: PMC7284546 DOI: 10.1093/jjco/hyz196] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/21/2022] Open
Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | | | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, Ishizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 49:965-971. [PMID: 31187865 PMCID: PMC6886465 DOI: 10.1093/jjco/hyz084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Aiming to achieve long-term disease control, maintenance systemic chemotherapy (MSC) with a 1-3-month drug-free interval is continued in selected patients. We report our experience of MSC for metastatic urothelial carcinoma (UC). METHODS Of 228 metastatic UC patients treated with systemic chemotherapy, 40 (17.5%, 40/228) had continuously undergone MSC. Data on the regimen, cycle number, and reason for the discontinuation of MSC were also collected. We analyzed OS from the initiation of MSC until death or the last follow-up, using the log-rank test to assess the significance of differences. RESULTS The median number of cycles of chemotherapy was 6, and the responses were CR in 6, PR in 20, SD in 13, and PD in 1 before MSC. Gemcitabine plus CDDP or carboplatin was mainly performed as MSC (70%, 28/40). MSC was repeated quarterly in 30 (75%, 30/40), every two months in 8 (20%, 8/40), and with other intervals in 2 (5%, 2/40). Overall, a median of 3.5 cycles (range: 1-29) of MSC was performed. The reason for the discontinuation of MSC was PD in 24 (60%, 24/40), favorable disease control in 9 (22.5%, 9/40), and myelosuppression in 3 (7.5%, 3/40), and for other reasons in 2 (5%, 2/40). MSC was ongoing in 2 (5%, 2/40). The median OS was 27 months from the initiation of MSC. PS0 (P = 0.0169), the absence of lung metastasis (P = 0.0387), and resection of the primary site (P = 0.0495) were associated with long-term survival after MSC. CONCLUSIONS In selected patients, long-term systemic chemotherapy could be performed with a drug-free interval. Our maintenance strategy with cytotoxic drugs may become one of the treatment options for long-term disease control.
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Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - J Ishizaki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Ota H, Narisawa E, Chiba H, Nakayama H, Tsukumo Y, Sakamoto A, Honma N, Ota T. EP1.01-89 Retroperitoneal Metastasis with Marked Fibrosis from Lung Adenocarcinoma: An Autopsy Case Report. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2062] [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: 10/25/2022]
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Watanabe M, Higashi T, Mine H, Takagi H, Ozaki Y, Muto S, Okabe N, Hasegawa T, Shio Y, Sugimoto K, Chiba H, Suzuki H. P2.06-20 Characterization of Claudin15 as a New Diagnostic Marker for Malignant Pleural Mesotheliomas. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shrestha R, Chen Z, Miura Y, Yamamoto Y, Sakurai T, Chiba H, Hui S. Analysis of molecular species of phosphatidylcholine hydroperoxide in human native and copper-oxidized triglyceride-rich lipoproteins. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.04.047] [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: 11/16/2022]
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Onishi H, Yamamura O, Matsuo S, Tanaka T, Daitoku S, Konokawa S, Tsubouchi H, Chiba H, Sone M, Kaku B, Enomoto S, Yamamoto T, Hashimoto Y, Hamano T, Hayashi H, Terasawa H. Localized Right Subclavian Artery Dissection Detected by Accident on an Ultrasound Examination: A Case Report and Literature Review. Intern Med 2019; 58:73-78. [PMID: 30146598 PMCID: PMC6367090 DOI: 10.2169/internalmedicine.1451-18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Right subclavian artery dissection was detected in a 78-year-old female victim of the Kumamoto earthquake during a carotid artery ultrasound examination. She was subsequently taken to hospital and diagnosed with localized subclavian artery dissection (LSAD) by contrast-enhanced computed tomography. There have been no previous reports of LSAD detected at a medical checkup. LSAD may progress and become severe, even in asymptomatic patients or patients with mild symptoms, and careful long-term follow-up is therefore required in all patients diagnosed with LSAD.
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Affiliation(s)
- Hidenori Onishi
- Department of Medical Technology, Kitasato Junior College of Health and Hygienic Sciences, Japan
- Second Department of Internal Medicine, Faculty of Medical Science, University of Fukui Hospital, Japan
| | - Osamu Yamamura
- Second Department of Internal Medicine, Faculty of Medical Science, University of Fukui, Japan
- Department of Community Medicine, University of Fukui, Japan
| | - Seiya Matsuo
- Department of Emergency, University of Fukui, Japan
| | - Tokuharu Tanaka
- Department of Internal Medicine, Sugita Genpaku Memorial Obama Municipal Hospital, Japan
| | - Satoshi Daitoku
- Department of Radiological Technology, Faculty of Medical Technology, Niigata University of Health and Welfare, Japan
| | | | | | - Hiroshi Chiba
- Division of Clinical Laboratory, Morioka Municipal Hospital, Japan
| | - Maiko Sone
- Department of Cardiology, Saiseikai Kurihashi Hospital, Japan
| | - Bunji Kaku
- Department of Cardiology, Toyama Red Cross Hospital, Japan
| | - Souichi Enomoto
- Second Department of Internal Medicine, Faculty of Medical Science, University of Fukui Hospital, Japan
| | - Tami Yamamoto
- Department of Clinical Laboratory, Saiseikai Kumamoto Hospital, Japan
| | | | - Tadanori Hamano
- Second Department of Internal Medicine, Faculty of Medical Science, University of Fukui Hospital, Japan
| | - Hiroyuki Hayashi
- Second Department of Internal Medicine, Faculty of Medical Science, University of Fukui Hospital, Japan
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16
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Shibata M, Chiba H, Sasaki K, Ueda S, Yamamura O, Hanzawa K. The utility of on-site ultrasound screening in population at high risk for deep venous thrombosis in temporary housing after the great East Japan Earthquake. J Clin Ultrasound 2017; 45:566-574. [PMID: 28556184 DOI: 10.1002/jcu.22505] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 05/02/2017] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND To evaluate the diagnostic performance of ultrasonography for screening of a population at risk for deep vein thrombosis (DVT) in a post-disaster setting. METHODS Ultrasonography was applied as a screening technique to the residents of a temporary housing facility who were displaced following the Great East Japan Earthquake. Thirty DVT screening sessions were held from April 2013 to June 2015. Individuals were invited to participate if they were identified as "high risk" for DVT, defined as those with low activity levels, a history of lower limb trauma, baseline lower limb pain or swelling, a cancer-bearing status, or a history of venous thromboembolic event. Ultrasonographic examinations were performed from the calf to the popliteal veins using portable devices. RESULTS Of the 3,316 subjects screened (682 men and 2,634 women) with a mean age of 71 ± 9.7 years, DVT was diagnosed in 382 (11.5%). DVT was more likely in older, symptomatic, or female patients with a history of venous thromboembolism and attempting to perform daily exercise. The rate of DVT diagnosis increased from 9.9% in 2013 to 13.5% in 2015. CONCLUSIONS Ultrasonography is efficient for screening at-risk populations in challenging settings. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 45:566-574, 2017.
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Affiliation(s)
- Muneichi Shibata
- Department of Cardiology, Makabe Hospital, Higashimatsushima, Japan
| | - Hiroshi Chiba
- Division of Clinical Laboratory, Morioka Municipal Hospital, Morioka, Japan
| | - Kazuhiro Sasaki
- Department of Neurology, Morioka Municipal Hospital, Morioka, Japan
| | - Shinsaku Ueda
- Department of Thoracic Surgery, Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Japan
| | - Osamu Yamamura
- Department of Community Health Care Promotion, University of Fukui, Eiheiji, Japan
| | - Kazuhiko Hanzawa
- Division of Thoracic and Cardiovascular Surgery, Niigata University, Niigata, Japan
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17
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Umeda Y, Hasegawa Y, Otsuka M, Ariki S, Takamiya R, Saito A, Uehara Y, Saijo H, Kuronuma K, Chiba H, Ohnishi H, Sakuma Y, Takahashi H, Kuroki Y, Takahashi M. Surfactant protein D inhibits activation of non-small cell lung cancer-associated mutant EGFR and affects clinical outcomes of patients. Oncogene 2017; 36:6432-6445. [PMID: 28745320 DOI: 10.1038/onc.2017.253] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 03/21/2017] [Accepted: 06/19/2017] [Indexed: 12/17/2022]
Abstract
Tyrosine kinase inhibitor (TKI)-sensitive and TKI-resistant mutations of epidermal growth factor receptor (EGFR) are associated with lung adenocarcinoma. EGFR mutants were previously shown to exhibit ligand-independent activation. We have previously demonstrated that pulmonary surfactant protein D (SP-D, SFTPD) suppressed wild-type EGFR signaling by blocking ligand binding to EGFR. We herein demonstrate that SFTPD downregulates ligand-independent signaling in cells harboring EGFR mutations such as TKI-sensitive exon 19 deletion (Ex19del) and L858R mutation as well as TKI-resistant T790M mutation, subsequently suppressing cellular growth and motility. Lectin blotting and ligand blotting in lung cancer cell lines suggested that EGFR mutants express oligomannose-type N-glycans and interact with SFTPD directly. Cross-linking assay indicated that SFTPD inhibits ligand-independent dimerization of EGFR mutants. We also demonstrated that SFTPD reduced dimerization-independent phosphorylation of Ex19del and T790M EGFR mutants using point mutations that disrupted the asymmetric dimer interface. It was confirmed that SFTPD augmented the viability-suppressing effects of EGFR-TKIs. Furthermore, retrospective analysis of 121 patients with lung adenocarcinoma to examine associations between serum SFTPD levels and clinical outcome indicated that in TKI-treated patients with lung cancer harboring EGFR mutations, including Ex19del or L858R, high serum SFTPD levels correlated with a lower number of distant metastases and prolonged overall survival and progression-free survival. These findings suggest that SFTPD downregulates both TKI-sensitive and -resistant EGFR mutant signaling, and SFTPD level is correlated with clinical outcome. These findings illustrate the use of serum SFTPD level as a potential marker to estimate the efficacy of EGFR-TKIs.
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Affiliation(s)
- Y Umeda
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Hasegawa
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.,Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Otsuka
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - S Ariki
- Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - R Takamiya
- Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - A Saito
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.,Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Uehara
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.,Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Saijo
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - K Kuronuma
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Chiba
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Ohnishi
- Departments of Public Health, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Sakuma
- Departments of Molecular Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Takahashi
- Departments of Respiratory Medicine and Allergology, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Y Kuroki
- Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Takahashi
- Departments of Biochemistry, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
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18
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Yamagami K, Nakamura T, Nakamura R, Hanioka Y, Seki K, Chiba H, Kobayashi K, Agematsu K. Familial Mediterranean fever with P369S/R408Q exon3 variant in pyrin presenting as symptoms of PFAPA. Mod Rheumatol 2017; 27:356-359. [PMID: 28001092 DOI: 10.1080/14397595.2017.1267173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Familial Mediterranean fever (FMF) can be classified into typical and incomplete/atypical types. Periodic fever, aphthous stomatitis, pharyngitis, cervical adenitis (PFAPA) syndrome-like symptoms have been found in atypical type carrying P369S-R408Q mutations in the responsible gene MEFV. A 28-year-old female with recurrent fever and her young sisters and mother, all of whom had tonsillectomy for tonsillitis, carried heterozygous alterations involving E148Q/P369S/R408Q. A diagnosis of atypical FMF, MEFV exon3 variants with PFAPA syndrome-like symptoms, was made.
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Affiliation(s)
- Keiko Yamagami
- a Department of Internal Medicine , Osaka City General Hospital , Osaka , Japan
| | - Tomoyuki Nakamura
- a Department of Internal Medicine , Osaka City General Hospital , Osaka , Japan
| | - Ryota Nakamura
- a Department of Internal Medicine , Osaka City General Hospital , Osaka , Japan
| | - Yusuke Hanioka
- a Department of Internal Medicine , Osaka City General Hospital , Osaka , Japan
| | - Kaori Seki
- a Department of Internal Medicine , Osaka City General Hospital , Osaka , Japan
| | - Hiroshi Chiba
- b Department of General Medicine , Hachinohe City Hospital , Hachinohe , Japan , and
| | - Keiko Kobayashi
- c Department of Infection and Host Defense, Graduate School of Medicine , Shinshu University , Matsumoto , Japan
| | - Kazunaga Agematsu
- c Department of Infection and Host Defense, Graduate School of Medicine , Shinshu University , Matsumoto , Japan
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19
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Sasanuma H, Yasuda Y, Mortensen FV, Yamashita K, Nihei Y, Houjou N, Chiba H, Shimizu A, Okada M, Nagai H. Simultaneous Colorectal and Liver Resections for Synchronous Colorectal Metastases. Scand J Surg 2016; 95:176-9. [PMID: 17066613 DOI: 10.1177/145749690609500309] [Citation(s) in RCA: 15] [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: 11/16/2022]
Abstract
Background: The surgical strategy for the treatment of colorectal cancer and synchronous hepatic metastases remains controversial. Many surgeons fear anastomotic leakage and intraperitoneal abscesses when performing a one-step procedure. They prefer a two-step procedure with a liver resection 2 to 3 months after resection of the colorectal primary lesion. Subjects and Methods: We analysed medical records from April 1994 to April 2002 for a total of 42 patients with colorectal cancer and synchronous liver metastases who underwent simultaneous liver and colorectal resections with a primary anastomosis. Special attention was paid to data on surgical procedures, postoperative morbidity, and mortality. Results: Forty-two patients, 24 men and 18 women, were studied. Median operating time was 6.50 hours (3.75–11.0 hours), and median blood loss was 1522 ml (range 288 to 5650 ml). Postoperative complications included pleural effusion in 4 patients, ileus in 3, anastomotic leakage in 2, intraperitoneal pelvic abscesses in 1, pneumonia in 1, bile leakage in 1, atelectasis in 1, and wound infection in 1. There was no perioperative mortality. Conclusion: Simultaneous colorectal resection with a primary anastomosis and hepatectomy for synchronous liver metastases is considered a safe procedure.
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Affiliation(s)
- H Sasanuma
- Department of Surgery, Jichi Medical School, Tochigi, Japan.
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20
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Takahashi S, Chiba H, Kato T, Endo S, Hayashi T, Todoroki N, Wadayama T. Oxygen reduction reaction activity and structural stability of Pt–Au nanoparticles prepared by arc-plasma deposition. Phys Chem Chem Phys 2015; 17:18638-44. [DOI: 10.1039/c5cp02048d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Sequential arc-plasma deposited Pt–Au alloy nanoparticles show superior electrochemical structural durability compared with arc-plasma deposited Pt nanoparticles before and after electrochemical potential cycles.
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Affiliation(s)
- Shuntaro Takahashi
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Hiroshi Chiba
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Takashi Kato
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Shota Endo
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Takehiro Hayashi
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Naoto Todoroki
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Toshimasa Wadayama
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
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21
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Takahashi Y, Sakurai T, Fujikawa M, Nagasaka A, Hui S, Jin S, Takeda S, Fuda H, Ito Y, Chiba H. Development of an automated assay for apoe-containing hdl-cholesterol. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.274] [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: 10/25/2022]
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Abstract
Dried bonito (Katsuobusi), a Japanese traditional seasoning made of bonito muscle was hydrolyzed by various proteases and the inhibitory activity of the hydrolyzates for angiotensin I-converting enzyme (ACE) [EC 3.4.15.1] was measured. Among the digests, thermolysin digest showed the most potent inhibitory activity. Eight inhibitory peptides were isolated from the digest using HPLC. The amino acid sequences of inhibitory peptides were Ile-Lys-Pro-Leu-Asn-Tyr, Ile-Val-Gly-Arg-Pro-Arg-His-Gln-Gly, Ile-Trp-His-His-Thr, Ala-Leu-Pro-His-Ala, Phe-Gln-Pro, Leu-Lys-Pro-Asn-Met, Ile-Tyr, and Asp-Tyr-Gly-Leu-Tyr-Pro. By searching for the sequence homology in many proteins, four of them were found in the primary structure of actin. Asp-Met-Ile-Pro-Ala-Gln-Lys was obtained from the boiling water extract of dried bonito and this peptide was found in the primary structure of creatine kinase. Fragments of these peptides were prepared by further enzymatic digestion or chemical synthesis and their ACE-inhibitory activities were measured. Among them, Ile-Lys-Pro, Ile-Trp, Leu-Lys-Pro, and Leu-Tyr-Pro had higher inhibitory activity than their parental peptides. Ile-Lys-Pro suppressed the hypertensive activity of angiotensin I.
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Affiliation(s)
- K Yokoyama
- Nippon Synthetic Chemical Industry Co., Ltd., Osaka, Japan
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23
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Onodera N, Chiba H, Yanagimoto M, Gotoh K, Suwabe A. [Examination for deep vein thrombosis in the Iwate Sanriku coastal area stricken by the Great East Japan Earthquake Disaster in 2011--measurement of D-dimer using POCT apparatus]. Rinsho Byori 2013; 61:1153-1159. [PMID: 24605550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
After the Great East Japan Earthquake Disaster in 2011, examinations for below the-knee deep vein thrombosis (BK-DVT) were carried out to prevent victims from secondary health damage by Iwate Prophylactic Examination Organization from economy-class syndrome. In this examination, D-dimer was measured using cobas h 232, a point-of-care testing (POCT) apparatus, in addition to medical interview, blood pressure measurement, and lower limb vein sonography. In the BK-DVT examination carried out in Tanohata in October and in Miyako in November 2012, the BK-DVT-positive number(percentage) in lower limb vein sonography was six (13.3%) in Tanohata and four (4.1%) in Miyako among 136 subjects (average age of 69.0 +/- 11.9, male:female sex ratio of 28:108). D-dimer in BK-DVT-positive subjects was 1.31 +/- 1.27 microg/mL, significantly higher than that in BK-DVT-negative subjects without cardiac diseases (0.46 +/- 0.50 microg/mL, p < 0.05). Eight subjects (5.6%) with higher D-dimer values were immediately referred to the nearest hospital. It was shown that the POCT apparatus was very useful when lifelines were not available and when the examination was performed in refuges since they are small, light and simple to operate, and the medical technologists played important roles in various examinations because of their high skill and abilities.
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Affiliation(s)
| | | | | | | | - Akira Suwabe
- Department of Laboratory Medicine, Iwate Medical University School of Medicine, Morioka 020-8505, Japan
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24
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Katsuki H, Delagnes J, Hosaka K, Ishioka K, Chiba H, Zijlstra E, Garcia M, Takahashi H, Watanabe K, Kitajima M, Matsumoto Y, Nakamura K, Ohmori K. All-optical control and visualization of ultrafast two-dimensional atomic motions in a single crystal of bismuth. Nat Commun 2013. [PMCID: PMC3868158 DOI: 10.1038/ncomms3801] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
In a bulk solid, optical control of atomic motion provides a better understanding of its physical properties and functionalities. Such studies would benefit from active control and visualization of atomic motions in arbitrary directions, yet, so far, mostly only one-dimensional control has been shown. Here we demonstrate a novel method to optically control and visualize two-dimensional atomic motions in a bulk solid. We use a femtosecond laser pulse to coherently superpose two orthogonal atomic motions in crystalline bismuth. The relative amplitudes of those two motions are manipulated by modulating the intensity profile of the laser pulse, and these controlled motions are quantitatively visualized by density functional theory calculations. Our control-visualization scheme is based on the simple, robust and universal concept that in any physical system, two-dimensional particle motion is decomposed into two orthogonal one-dimensional motions, and thus it is applicable to a variety of condensed matter systems. Controlling the motion of atoms in solids with light allows for a deeper understanding of their fundamental properties, yet most studies only deal with one spatial dimension. Katsuki et al. extend this approach to two-dimensional control and use it to visualize atomic motion in bismuth.
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Koide K, Hori K, Miyagami S, Takenaka S, Kawashima A, Chiba H, Sekizawa A. Placental DNA methylation pattern in preeclampsia. Placenta 2013. [DOI: 10.1016/j.placenta.2013.06.157] [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: 10/26/2022]
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26
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Ohata K, Fu K, Shouzushima M, Hamanaka J, Ono A, Ito T, Tsuji Y, Chiba H, Matsuhashi N. A novel traction system for esophageal endoscopic submucosal dissection. Endoscopy 2013; 44 Suppl 2 UCTN:E410-1. [PMID: 23169040 DOI: 10.1055/s-0032-1325735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 12/27/2022]
Affiliation(s)
- K Ohata
- Division of Gastroenterology, NTT Medical Center, Tokyo, Japan.
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27
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Woeckel V, Bruedigam C, Koedam M, Chiba H, van der Eerden B, van Leeuwen J. 1α,25-Dihydroxyvitamin D3 and rosiglitazone synergistically enhance osteoblast-mediated mineralization. Gene 2013; 512:438-43. [DOI: 10.1016/j.gene.2012.07.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/26/2012] [Accepted: 07/30/2012] [Indexed: 11/28/2022]
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Miura Y, Chiba H, Katoono R, Kawai H, Fujiwara K, Suzuki S, Okada K, Suzuki T. Stable neutral radicals based on the polyazaacene skeleton that exhibit high electrochemical amphotericity. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Woeckel VJ, Koedam M, van de Peppel J, Chiba H, van der Eerden BCJ, van Leeuwen JPTM. Evidence of vitamin D and interferon-β cross-talk in human osteoblasts with 1α,25-dihydroxyvitamin D3 being dominant over interferon-β in stimulating mineralization. J Cell Physiol 2012; 227:3258-66. [PMID: 22105341 DOI: 10.1002/jcp.24020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
It is well established that 1α-25-dihydroxyvitamin D3 (1,25D3) regulates osteoblast function and stimulates mineralization by human osteoblasts. The aim of this study was to identify processes underlying the 1,25D3 effects on mineralization. We started with gene expression profiling analyses of differentiating human pre-osteoblast treated with 1,25D3. Bioinformatic analyses showed interferon-related and -regulated genes (ISG) to be overrepresented in the set of 1,25D3-regulated genes. 1,25D3 down-regulated ISGs predominantly during the pre-mineralization period. This pointed to an interaction between the vitamin D and IFN signaling cascades in the regulation of osteoblast function. Separately, 1,25D3 enhances while IFNβ inhibits mineralization. Treatment of human osteoblasts with 1,25D3 and IFNβ showed that 1,25D3 completely overrules the IFNβ inhibition of mineralization. This was supported by analyses of extracellular matrix gene expression, showing a dominant effect of 1,25D3 over the inhibitory effect of IFNβ. We identified processes shared by IFNβ- and 1,25D3-mediated signaling by performing gene expression profiling during early osteoblast differentiation. Bioinformatic analyses revealed that genes being correlated or anti-correlated with interferon-induced protein with tetratricopeptide repeats 1 (IFIT1) were associated with osteoblast proliferation. In conclusion, the current study demonstrates a cross talk between 1,25D3 and IFNβ in osteoblast differentiation and bone formation/mineralization. The interaction is complex and depends on the process but importantly, 1,25D3 stimulation of mineralization is dominant over the inhibitory effect of IFNβ. These observations are of potential clinical relevance considering the impact of the immune system on bone metabolism in conditions such as rheumatoid arthritis.
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Affiliation(s)
- V J Woeckel
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
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30
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Chiba H, Nishida JI, Yamashita Y. Tetracyanoanthraquinodimethanes Having Biaryl Substituents: Synthesis, Crystal Structures, and Physical Properties. CHEM LETT 2012. [DOI: 10.1246/cl.2012.482] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroshi Chiba
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Jun-ichi Nishida
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Yoshiro Yamashita
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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31
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Woeckel VJ, Eijken M, van de Peppel J, Chiba H, van der Eerden BCJ, van Leeuwen JPTM. IFNβ impairs extracellular matrix formation leading to inhibition of mineralization by effects in the early stage of human osteoblast differentiation. J Cell Physiol 2012; 227:2668-76. [PMID: 21898404 DOI: 10.1002/jcp.23009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Osteoimmunology is an emerging field of research focused on the interaction of the immune system and bone. In this study we demonstrate that human osteoblasts are sensitive to the immune cytokine interferon (IFN)β. Osteoblasts respond to IFNβ as shown by the induction of several known IFN target genes such as interferon-induced (IFI) proteins (IFIT1, IFI44L), interferon-stimulated gene factor 3 (ISGF3) complex and the induction of IFNβ itself. We demonstrated that IFNβ has severe inhibitory effects on mineralization of osteoblast-derived extracellular matrix (ECM). Analysis of the timing of the IFNβ effects revealed that committed osteoblasts in early stage of differentiation are most sensitive to IFNβ inhibition of mineralization. A single IFNβ treatment was as effective as multiple treatments. During the progress of differentiation osteoblasts become desensitized for IFNβ. This pinpoints to a complex pattern of IFNβ sensitivity in osteoblasts. Focusing on early osteoblasts, we showed that IFNβ decreased gene expression of ECM-related genes, such as type I Collagen (COL1A1), fibronectin (FN1), fibullin (FBLN1), fibrillin (FBN2), and laminin (LAMA1). Additionally, ECM produced by IFNβ-treated osteoblasts contained less collagen protein. IFNβ stimulated gene expression of osteopontin (OPN), annexin2 (ANXA2), and hyaluronan synthase 1 (HAS1), which are important factors in the adhesion of hematopoietic stem cells (HSC) in the HSC niche. In conclusion, IFNβ directly modifies human osteoblast function by inhibiting ECM synthesis eventually resulting in delayed bone formation and mineralization and induces a HSC niche supporting phenotype. These effects are highly dependent on timing of treatment in the early phase of osteoblast differentiation.
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Affiliation(s)
- V J Woeckel
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
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Otsuki K, Sawada M, Chiba H, Tokunaka M, Ota H, Nagatsuka M, Okai T. 497: Silvestat sodium hydrate suppresses premature cervical ripening in a rabbit preterm delivery model. Am J Obstet Gynecol 2012. [DOI: 10.1016/j.ajog.2011.10.515] [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: 10/14/2022]
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Tsuji Y, Ohata K, Sekiguchi M, Ito T, Chiba H, Gunji T, Yamamichi N, Fujishiro M, Matsuhashi N, Koike K. An effective training system for endoscopic submucosal dissection of gastric neoplasm. Endoscopy 2011; 43:1033-8. [PMID: 22135195 DOI: 10.1055/s-0031-1291383] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND STUDY AIMS A standard training system for endoscopic submucosal dissection (ESD) remains to be established. In this study, we evaluated the validity of our training program for gastric ESD. PATIENTS AND METHODS Four trainees performed gastric ESD for a total of 117 lesions in 107 patients (27 to 30 consecutive lesions per trainee) at a tertiary referral center during 2 years in the training program. Trainees, who already had the fundamental skills and knowledge needed for ESD, each assisted at 40 gastric ESD procedures, then in 20 cases applied post-ESD coagulation (PEC) to gastric mucosal defects; they then began to perform ESD, starting with gastric antral lesions. Treatment outcomes, including mean procedure time, and rates of en bloc resection, en bloc plus R0 resections, complications, and self-completion, were evaluated, for the initial 15 and subsequent 12 to 15 cases. RESULTS Overall rates of en bloc resection and en bloc plus R0 resection were as high as 100 % and 96.6 %, respectively. Regarding complications, seven cases of delayed hemorrhage (6.0 %) and three cases of perforation (2.6 %) occurred; all complications were solved endoscopically. The most frequent reason for operator change was lack of submucosal dissection skill. The self-completion rate was more than 80 % even in the early period, and did not increase for later cases. CONCLUSIONS Our training system enabled novice operators to perform gastric ESD without a decline in clinical outcomes. Key features of this training are prior intensive learning and actual ESD during the learning period under expert supervision.
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Affiliation(s)
- Y Tsuji
- Department of Gastroenterology, NTT Medical Center Tokyo, Tokyo, Japan
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Abstract
Trigonella foenum-graecum L. (fenugreek) has been described earlier and its use in ancient medicinal practice is well known. The hypoglycemic effects of fenugreek have been studied in many animal models and diabetic patients. The purpose of this study was to examine the preventive efficiency of dietary fenugreek on diet-induced metabolic diseases in rats. The diets used in this study were a standard diet, a high-fat high-sucrose (HFS) diet, and a HFS diet containing 0.5 g/kg b. w./day fenugreek based on the modified version of the AIN-93G purified diet, for 12 weeks, respectively. The rats fed the HFS diet containing fenugreek showed significantly lower fasting insulin levels and HOMA-IR than the rats fed the HFS diet. Therefore, fenugreek improved insulin sensitivity in rats. The triglyceride and total cholesterol levels in the plasma were significantly lower in the fenugreek-administered group. Moreover, distinct reductions of triglyceride, total cholesterol, free fatty acid, and phospholipid levels in the liver were found in the rats fed the HFS diet containing fenugreek. These results suggest that fenugreek enhanced insulin sensitivity at least partly by improving lipid metabolism disorders in the plasma and the liver in the rats induced by the HFS diet.
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Affiliation(s)
- E Muraki
- Department of Clinical Dietetics & Human Nutrition, Josai University, Saitama, Japan.
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Abstract
ABSTRACTThe role of 02 gas addition on the deposition of Diamond-like Carbon (DLC) film was studied for hard disk drive (HDD) media application. The influence of 02 gas mixing ratio on DLC film quality was investigated using the dc magnetron sputtering method with a solid graphite target and Ar, CH4 and 02 mixing gases. The 02 mixing ratio was varied between 0% and 50%. Film quality was evaluated using Raman spectroscopy and XPS. When 02 gas mixing ratio increased the peak in Raman spectra shifted gradually to higher wavenumbers and its bandwidth became narrower. This indicates graphite component increased in the DLC film. In addition, the lubricant coverage on oxygen-containing DLC was improved. Because adding oxygen increases the terminations of carbonyl group on DLC surface, this result suggests that the polar surface causes higher affinity for the lubricant
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Alves RDAM, Eijken M, Swagemakers S, Chiba H, Titulaer MK, Burgers PC, Luider TM, van Leeuwen JPTM. Proteomic analysis of human osteoblastic cells: relevant proteins and functional categories for differentiation. J Proteome Res 2011; 9:4688-700. [PMID: 20690663 DOI: 10.1021/pr100400d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Osteoblasts are the bone forming cells, capable of secreting an extracellular matrix with mineralization potential. The exact mechanism by which osteoblasts differentiate and form a mineralized extracellular matrix is presently not fully understood. To increase our knowledge about this process, we conducted proteomics analysis in human immortalized preosteoblasts (SV-HFO) able to differentiate and mineralize. We identified 381 proteins expressed during the time course of osteoblast differentiation. Gene ontology analysis revealed an overrepresentation of protein categories established as important players for osteoblast differentiation, bone formation, and mineralization such as pyrophosphatases. Proteins involved in antigen presentation, energy metabolism and cytoskeleton rearrangement constitute other overrepresented processes, whose function, albeit interesting, is not fully understood in the context of osteoblast differentiation and bone formation. Correlation analysis, based on quantitative data, revealed a biphasic osteoblast differentiation, encompassing a premineralization and a mineralization period. Identified differentially expressed proteins between mineralized and nonmineralized cells include cytoskeleton (e.g., CCT2, PLEC1, and FLNA) and extracellular matrix constituents (FN1, ANXA2, and LGALS1) among others. FT-ICR-MS data obtained for FN1, ANXA2, and LMNA shows a specific regulation of these proteins during the different phases of osteoblast differentiation. Taken together, this study increases our understanding of the proteomics changes that accompany osteoblast differentiation and may permit the discovery of novel modulators of bone formation.
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Affiliation(s)
- Rodrigo D A M Alves
- Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
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Woeckel VJ, Alves RDAM, Swagemakers SMA, Eijken M, Chiba H, van der Eerden BCJ, van Leeuwen JPTM. 1Alpha,25-(OH)2D3 acts in the early phase of osteoblast differentiation to enhance mineralization via accelerated production of mature matrix vesicles. J Cell Physiol 2010; 225:593-600. [PMID: 20506116 DOI: 10.1002/jcp.22244] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
1Alpha,25-dihydroxyitamin D(3) (1,25D3) deficiency leads to impaired bone mineralization. We used the human pre-osteoblastic cell line SV-HFO, which forms within 19 days of culture an extracellular matrix that starts to mineralize around day 12, to examine the mechanism by which 1,25D3 regulates osteoblasts and directly stimulates mineralization. Time phase studies showed that 1,25D3 treatment prior to the onset of mineralization, rather than during mineralization led to accelerated and enhanced mineralization. This is supported by the observation of unaltered stimulation by 1,25D3 even when osteoblasts were devitalized just prior to onset of mineralization and after 1,25D3 treatment. Gene Chip expression profiling identified the pre-mineralization and mineralization phase as two strongly distinctive transcriptional periods with only 0.6% overlap of genes regulated by 1,25D3. In neither phase 1,25D3 significantly altered expression of extracellular matrix genes. 1,25D3 significantly accelerated the production of mature matrix vesicles (MVs) in the pre-mineralization. Duration rather than timing determined the extent of the 1,25D3 effect. We propose the concept that besides indirect effects via intestinal calcium uptake 1,25D3 directly accelerates osteoblast-mediated mineralization via increased production of mature MVs in the period prior to mineralization. The accelerated deposition of mature MVs leads to an earlier onset and higher rate of mineralization. These effects are independent of changes in extracellular matrix protein composition. These data on 1,25D3, mineralization, and MV biology add new insights into the role of 1,25D3 in bone metabolism and emphasize the importance of MVs in bone and maintaining bone health and strength by optimal mineralization status.
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Affiliation(s)
- V J Woeckel
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
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Ando H, Kaneko S, Suzuki H, Horikoshi K, Chiba H, Isagi Y. Lack of genetic differentiation among subpopulations of the black‐footed albatross on the Bonin Islands. J Zool (1987) 2010. [DOI: 10.1111/j.1469-7998.2010.00749.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H. Ando
- Laboratory of Forest Biology, Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake‐cho, Sakyo‐ku, Kyoto, Japan
| | - S. Kaneko
- Laboratory of Forest Biology, Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake‐cho, Sakyo‐ku, Kyoto, Japan
| | - H. Suzuki
- Institute of Boninology, Miyanohamamichi, Chichijima, Ogasawara, Tokyo, Japan
| | - K. Horikoshi
- Institute of Boninology, Miyanohamamichi, Chichijima, Ogasawara, Tokyo, Japan
| | - H. Chiba
- Institute of Boninology, Miyanohamamichi, Chichijima, Ogasawara, Tokyo, Japan
| | - Y. Isagi
- Laboratory of Forest Biology, Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake‐cho, Sakyo‐ku, Kyoto, Japan
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Chiba H, Ohata K, Ohno A, Sekino Y, Ito T, Tsuji Y, Ohya T, Inamori M, Nakajima A, Matsuhashi N. Perforation with retroperitoneal emphysema after endoscopic submucosal dissection for a rectal carcinoid tumor. Endoscopy 2010; 42 Suppl 2:E85-6. [PMID: 20195979 DOI: 10.1055/s-0029-1243873] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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: 12/10/2022]
Affiliation(s)
- H Chiba
- Department of Gastroenterology, Kanto Medical Center, NTT East, Tokyo, Japan
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Chiba H, Tsukamoto Y, Nagano R, Kumazawa R, Takahashi H, Takagi S. P1.011 How do initial symptoms of Parkinson's disease and the patients' awareness of the disease affect the process of diagnosis? Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70133-6] [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: 10/20/2022]
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41
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Chida K, Morishima Y, Masuyama H, Chiba H, Katahira Y, Inaba Y, Mori I, Maruoka S, Takahashi S, Kohzuki M, Zuguchi M. Effect of radiation monitoring method and formula differences on estimated physician dose during percutaneous coronary intervention. Acta Radiol 2009; 50:170-3. [PMID: 19096953 DOI: 10.1080/02841850802616745] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Currently, one or two dosimeters are used to monitor radiation exposure in most cardiac laboratories. In addition, several different formulas are used to convert exposure data into an effective dose (ED). PURPOSE To clarify the effect of monitoring methods and formula selection on the estimated ED for physicians during percutaneous coronary interventions (PCIs). MATERIAL AND METHODS The ED of physicians during cardiac catheterization was determined using an optically stimulated luminescence dosimeter (Luxel badge). Two Luxel badges were worn: one beneath a personal lead apron (0.35-mm lead equivalent) at the chest and one outside of the apron at the neck. RESULTS The difference in the average ED of seven physicians was approximately fivefold (range 1.13-5.43 mSv/year) using the six different formulas in the clinical evaluation. The estimated physician ED differed markedly according to both the monitoring method and formula selected. CONCLUSION ED estimation is dependent on both the monitoring method and the formula used. Therefore, it is important that comparisons among laboratories are based on the same monitoring method and same formula for calculating the ED.
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Affiliation(s)
- K. Chida
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y. Morishima
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H. Masuyama
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H. Chiba
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y. Katahira
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y. Inaba
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - I. Mori
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S. Maruoka
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S. Takahashi
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M. Kohzuki
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M. Zuguchi
- Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan; Department of Radiology and Department of Cardiovascular Medicine, Tohoku Employees’ Pension Welfare Hospital, Sendai, Japan; Department of Radiology, and Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
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Katagiri S, Nitta H, Nagasawa T, Uchimura I, Izumiyama H, Inagaki K, Kikuchi T, Noguchi T, Kanazawa M, Matsuo A, Chiba H, Nakamura N, Kanamura N, Inoue S, Ishikawa I, Izumi Y. Multi-center intervention study on glycohemoglobin (HbA1c) and serum, high-sensitivity CRP (hs-CRP) after local anti-infectious periodontal treatment in type 2 diabetic patients with periodontal disease. Diabetes Res Clin Pract 2009; 83:308-15. [PMID: 19168253 DOI: 10.1016/j.diabres.2008.10.016] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [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: 01/11/2008] [Revised: 10/14/2008] [Accepted: 10/21/2008] [Indexed: 01/03/2023]
Abstract
The purpose of this study was to examine whether periodontal treatment incorporating topical antibiotic therapy affects on levels of glycohemoglobin (HbA1c) and serum high-sensitivity C-reactive protein (hs-CRP) in type 2 diabetic patients with periodontal disease, and to explore the relationship between CRP and glycemic control. The whole intervention group (n=32), which underwent anti-infectious periodontal treatment, showed only transient reduction in HbA1c levels without any change in hs-CRP, while the control group (n=17) did not show any changes in HbA1c or hs-CRP. Multiple regression analysis of all subjects revealed that BMI and change in hs-CRP correlated significantly with the reduction of HbA1c at 6 months after the periodontal treatment. Based on the results of multiple regression analysis, the intervention group was subdivided into two groups: those in which hs-CRP levels decreased (CRP-D group), and those in which hs-CRP levels unchanged or increased (CRP-N group) (n=16, respectively), and re-analysis was conducted based upon these subgroups. In the CRP-D subgroup, HbA1c was significantly reduced at the end of the study, but it did not decrease in the CRP-N subgroup. The decrease of HbA1c in the CRP-D subgroup following periodontal treatment was significantly greater than that in the CRP-N subgroup. BMI of each group remained unchanged in this study at the end of the study. Thus, the results suggested that periodontal treatment with topical antibiotics improves HbA1c through reduction of CRP, which may relate to amelioration of insulin resistance, in type 2 diabetic patients with periodontal disease.
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Affiliation(s)
- S Katagiri
- Periodontology, Department of Hard Tissue Engineering, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
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Nakayama K, Otsuki K, Yakuwa K, Hasegawa A, Sawada M, Mitsukawa K, Chiba H, Nagatsuka M, Okai T. Recombinant human lactoferrin inhibits matrix metalloproteinase (MMP-2, MMP-3, and MMP-9) activity in a rabbit preterm delivery model. J Obstet Gynaecol Res 2008; 34:931-4. [DOI: 10.1111/j.1447-0756.2008.00827.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Matsuo A, Takahashi H, Chiba H, Shikinami Y. O.178 Custom made bioabsorbable tray for mandibular reconstruction. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71302-7] [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: 12/01/2022] Open
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Eijken M, Meijer I, Westbroek I, Koedam M, Chiba H, Uitterlinden A, Pols H, van Leeuwen J. Wnt signaling acts and is regulated in a human osteoblast differentiation dependent manner. J Cell Biochem 2008; 104:568-79. [DOI: 10.1002/jcb.21651] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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46
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Takanashi K, Fujii A, Nakajima R, Chiba H, Higuchi M, Einaga Y, Yamamoto K. Heterometal Assembly in Dendritic Polyphenylazomethines. BCSJ 2007. [DOI: 10.1246/bcsj.80.1563] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
Vascular endothelial growth factor (VEGF) production by stromal fibroblasts plays an important role in tumor angiogenesis. However, VEGF is also expressed by normal tissue fibroblasts, raising the question of how the VEGF activity of fibroblasts is regulated. Here we report that the latent VEGF angiogenic activity of fibroblasts is activated by cancer cells, resulting in tumor-selective utilization of fibroblast-derived VEGF. Through the production of VEGF, human VA-13 fibroblasts promote angiogenesis in and growth of human pancreas cancer Capan-1 xenograft tumors, whereas VA-13 fibroblasts alone do not show significant angiogenesis. Treatment of VA-13 fibroblast supernatant with matrix metalloproteinase-7 (MMP-7), an extracellular proteinase characteristically expressed by cancer cells, elicits endothelial tube formation. This effect is abrogated by anti-VEGF antibody or connective tissue growth factor (CTGF), which was previously reported to sequester VEGF and be degraded by MMP-7. Suppression of MMP-7 in Capan-1 cells abrogates the tumor angiogenic activity of VA-13 fibroblasts, which is restored by suppression of CTGF in VA-13 fibroblasts. We further show that these molecular mechanisms that trigger angiogenesis are effective in human primary fibroblasts and human colorectal tissue. These data suggest that fibroblasts may store VEGF in a latent state in the extracellular environment for urgent use in angiogenesis.
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Affiliation(s)
- T-K Ito
- Laboratory of Cancer Biology, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa-City, Chiba, Japan
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48
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Purwosunu Y, Sekizawa A, Koide K, Farina A, Wibowo N, Wiknjosastro GH, Okazaki S, Chiba H, Okai T. Cell-Free mRNA Concentrations of Plasminogen Activator Inhibitor-1 and Tissue-Type Plasminogen Activator Are Increased in the Plasma of Pregnant Women with Preeclampsia. Clin Chem 2007; 53:399-404. [PMID: 17234729 DOI: 10.1373/clinchem.2006.081372] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [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: 11/06/2022]
Abstract
Abstract
Background: Detection of placental mRNA in maternal plasma has been reported in high-risk pregnancies. We attempted to investigate the concentrations of plasminogen activator inhibitor-1 (PAI-1) and tissue-type plasminogen activator (tPA) mRNA in maternal plasma in preeclampsia.
Methods: Peripheral blood samples were obtained from healthy pregnant women before and after delivery and also from women with or without preeclampsia. Plasma was isolated from these samples, and RNA was extracted. Plasma PAI-1 and tPA mRNA concentrations were then measured by use of reverse transcription PCR assays. The concentrations were converted into multiples of the median (MoM) of the controls adjusted for gestational age. Data were stratified and analyzed according to the clinical severity of preeclampsia and quantitative distribution of blood pressure and proteinuria.
Results: The median (minimum–maximum) PAI-1 mRNA MoM values for women with preeclampsia and controls were 2.48 (0.82–8.53) and 1.00 (0.41–2.33), respectively, whereas the median (minimum–maximum) tPA mRNA MoM values were 3.33 (1.01–10.58) and 1.00 (0.95–1.20), respectively. The concentrations of both PAI-1 and tPA mRNA were significantly increased in cases of preeclampsia, compared with controls (P <0.0001). The MoM values of both mRNA species were directly correlated with the severity of preeclampsia and were greatest among a subgroup of hemolysis, increased liver enzymes, and low platelets pregnancies.
Conclusion: Maternal plasma PAI-1 and tPA mRNAs are significantly increased in patients with preeclampsia and are positively correlated with the severity of preeclampsia.
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Affiliation(s)
- Yuditiya Purwosunu
- Department of Obstetrics and Gynecology, Showa University School of Medicine, Tokyo, Japan
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Yakuwa K, Otsuki K, Nakayama K, Hasegawa A, Sawada M, Mitsukawa K, Chiba H, Nagatsuka M, Okai T. Recombinant human lactoferrin has a potential to suppresses uterine cervical ripening in preterm delivery in animal model. Arch Gynecol Obstet 2006; 275:331-4. [PMID: 17031657 DOI: 10.1007/s00404-006-0261-9] [Citation(s) in RCA: 10] [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] [Received: 06/21/2006] [Accepted: 09/01/2006] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the effect of recombinant human lactoferrin (rhLF) on cervical ripening using a rabbit model in which preterm labor was induced by bacterial endotoxin lipopolysaccharide (LPS). STUDY DESIGN Timed pregnant rabbits (New Zealand White, 3-4 kg, day 14) were randomly assigned to the following treatment groups: Group A, LPS + rhLF (n = 4); Group B, LPS (n = 4); and Group C, control (n = 4). Recombinant human lactoferrin (10 microg) was administrated to pregnant rabbits in Group A and not in Group B. Lipopolysaccharide (100 microg) was given to the rabbits in both groups for 3 days (days14-16). Drugs were administered as a vaginal suppository. On day 18, the rabbits were anesthetized with intramuscular ketamine hydrochloride (20 mg/kg) and diazepam (4 mg/kg). Both cervices of the rabbit uterus, which is bicorpus-bicolli, were taken out. One cervix was placed in 10% formalin solution for a histological study with standard hematoxylin-eosin staining. The other was used for an extension test to assess the grade of ripening. Extension was measured after a 5-mm length of cervical tissue was loaded with 5.8 g. RESULTS The histological study showed remarkably loose and edematous connective tissue in Group B cervices. Cervical tissues in Group A was not different from those in Group C. Extension lengths were 2.2 +/- 0.2 mm in Group A, 7.0 +/- 2.7 mm in Group B, and 1.7 +/- 0.3 mm in Group C. CONCLUSION These results suggest that rhLF inhibits cervical maturation induced by LPS in a rabbit model and may have a potential to prevent preterm delivery caused by cervical infection and ripening.
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Affiliation(s)
- K Yakuwa
- Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
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van Driel M, Koedam M, Buurman CJ, Hewison M, Chiba H, Uitterlinden AG, Pols HAP, van Leeuwen JPTM. Evidence for auto/paracrine actions of vitamin D in bone: 1alpha-hydroxylase expression and activity in human bone cells. FASEB J 2006; 20:2417-9. [PMID: 17023519 DOI: 10.1096/fj.06-6374fje] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.9] [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: 02/06/2023]
Abstract
Vitamin D is an important regulator of mineral homeostasis and bone metabolism. 1Alpha-hydroxylation of 25-(OH)D3 to form the bioactive vitamin D hormone, 1alpha,25-(OH)2D3, is classically considered to take place in the kidney. However, 1alpha-hydroxylase has been reported at extrarenal sites. Whether bone is a 1alpha,25-(OH)2D3 synthesizing tissue is not univocal. The aim of this study was to investigate an autocrine/paracrine function for 1alpha,25-(OH)2D3 in bone. We show that 1alpha-hydroxylase is expressed in human osteoblasts, as well as the vitamin D binding protein receptors megalin and cubilin. Functional analyses demonstrate that after incubation with the 1alpha-hydroxylase substrate 25-(OH)D3, the osteoblasts can produce sufficient 1alpha,25-(OH)2D3 to modulate osteoblast activity, resulting in induced alkaline phosphatase (ALP) activity, osteocalcin (OC) and CYP24 mRNA expression, and mineralization. The classical renal regulators of 1alpha-hydroxylase, parathyroid hormone, and ambient calcium do not regulate 1alpha-hydroxylase in osteoblasts. In contrast, interleukin (IL)-1beta strongly induces 1alpha-hydroxylase. Besides the bone-forming cells, we demonstrate 1alpha-hydroxylase activity in the bone resorbing cells, the osteoclasts. This is strongly dependent on osteoclast inducer RANKL. This study showing expression, activity, and functionality of 1alpha-hydroxylase unequivocally demonstrates that vitamin D can act in an auto/paracrine manner in bone.
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Affiliation(s)
- M van Driel
- Department of Internal Medicine, Erasmus MC, Dr. Molewaterplein 50, 3015 GE Rotterdam, The Netherlands
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