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Ono M, Matsuura K, Kono M, Ohnishi K, Takayama Y, Shoda H, Iwamoto Y, Kagemoto M. Long-Term Results of a Phase II Study of Accelerated Hyperfractionated Thoracic Radiotherapy with Dose Escalation to 54 Gy for Limited-Stage Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e45. [PMID: 37785450 DOI: 10.1016/j.ijrobp.2023.06.747] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The combination of accelerated hyperfractionated thoracic radiotherapy (AHF-TRT) of 45 Gy and concurrent chemotherapy is the standard treatment for limited-stage small-cell lung cancer (LS-SCLC). However, the optimal dose and fractionation remain controversial. We herein report the results of a phase II study investigating the utility of dose escalation to 54 Gy on AHF-RT for LS-SCLC. MATERIALS/METHODS We enrolled patients ≤80 years old with treatment-naïve confirmed LS-SCLC and an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2. The radiation dose was 54 Gy delivered in 36 fractions in 18 treatment days over 3.6 weeks. The chemotherapy regimens were PE (cisplatin and etoposide)- or CE (carboplatin and etoposide)-based. AHF-TRT was given in 2 phases: patients initially received 36 Gy to the gross tumor plus uninvolved mediastinal nodes, followed by a boost to the gross tumor of 18 Gy. All patients were treated with three-dimensional conformal radiation therapy with multiple fields to reduce the elevated dose volume to the surrounding tissues, such as the lungs and esophagus, as much as possible. All patients were evaluated for the overall survival (OS), progression-free survival (PFS), and non-hematological toxicity. RESULTS Between 2013 and 2016, a total of 13 patients were enrolled in the present study. All the patients were assessable for the response and toxicity. The median age was 67 (range, 54-78) years old, and 9 patients were male, while 4 were female. Twelve patients had a ECOG performance status of 0. The numbers of patients with Stage IIA, IIB, IIIA, and IIIB disease were one, one, eight, and three, respectively. The median follow-up for all patients was 79 (range, 13-107) months, and that for surviving patients was 90 (range, 79-107) months. The patterns of failure were locoregional-only recurrence in 0% (0 patients), both locoregional and distant in 15.4% (2 patients), and distant-only in 30.8% (4 patients). Recurrence from the elective nodal irradiation area was seen in 0% (0 patients). The 1-, 3-, 5-, and 7-year OS rates were 100%, 76.9%, 53.9%, and 44.9%, respectively, and the median OS was 83.0 months. The 1-, 3-, 5-, and 7-year PFS rates were 76.9%, 53.9%, 53.9%, and 44.9%, respectively, and the median PFS was 83.0 months. No patient experienced a grade ≥3 non-hematological adverse effect, such as esophagitis or pneumonitis, during treatment or follow-up. Grade 2 pneumonitis was observed in 2 patients (15.4%), Grade 2 esophagitis was observed in 12 patients (92.3%), and Grade 2 esophageal pain was observed in 2 patients (15.4%). CONCLUSION In this study, AHF-TRT of 54 Gy with concurrent PE- or CE-based regimens resulted in a good OS and PFS without increasing severe toxicity. Although this regimen needs to be evaluated in more patients to fully confirm its efficacy, these outcomes suggest that dose escalation to 54 Gy may be a promising radical treatment for LS-SCLC.
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Affiliation(s)
- M Ono
- Clinical training division, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan; Department of Radiation Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - K Matsuura
- Department of Radiation Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - M Kono
- Department of Medical Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - K Ohnishi
- Department of Radiation Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Y Takayama
- Department of Respiratory Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - H Shoda
- Department of Respiratory Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Y Iwamoto
- Department of Medical Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - M Kagemoto
- Department of Radiation Oncology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
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Yaginuma Y, Matsuura K, Yamada S, Yoshida T, Hasegawa M. Left ventricular outflow tract obstruction caused by a congenital accessory mitral valve leaflet and treated by open-heart surgery in a young dog. J Small Anim Pract 2023; 64:168-172. [PMID: 36284366 DOI: 10.1111/jsap.13571] [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: 12/19/2021] [Revised: 09/14/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022]
Abstract
A 3-month-old Shetland sheepdog presented with a loud ejection murmur and exercise intolerance. Echocardiography revealed an accessory mitral valve leaflet, characterised by a valve-like structure separate from the mitral valve seen in the subaortic region of the ventricular septum. The left ventricular outflow tract was partially obstructed with a pressure gradient of 12 mmHg. Accessory mitral valve leaflet resection and mitral valvuloplasty were performed during open-heart surgery. Histology performed on the membrane-like structures were indicative of fibrous connective tissues. Postoperative echocardiography confirmed removal of the valve-like structure with resolution of the left ventricular outflow tract obstruction. The pressure gradient was decreased to 4.6 mmHg. The dog was in good condition and no further treatment was required 5 months after surgery. Both cardiac troponin I and NT-proBNP were markedly decreased. In this dog, surgical resection combined with mitral valve plasty resolved the left ventricular outflow tract obstruction and the clinical signs.
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Affiliation(s)
- Y Yaginuma
- VCA Japan Shiraishi Animal Hospital, Saitama, Japan
| | - K Matsuura
- VCA Japan Shiraishi Animal Hospital, Saitama, Japan
| | - S Yamada
- VCA Japan Shiraishi Animal Hospital, Saitama, Japan
| | - T Yoshida
- VCA Japan Shiraishi Animal Hospital, Saitama, Japan
| | - M Hasegawa
- VCA Japan Shiraishi Animal Hospital, Saitama, Japan
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Matsuura K, Inoue Y. Intraoperative Iodine Disinfection for Cataract Surgery [Letter]. Infect Drug Resist 2023; 16:389-390. [PMID: 36714351 PMCID: PMC9882415 DOI: 10.2147/idr.s404373] [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: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, Kurayoshi-city, Tottori, 6820863, Japan,Tottori University, Yonago-city, Tottori, 6838504, Japan,Correspondence: Kazuki Matsuura, Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori, 6820863, Japan, Tel +81-858-22-6231, Fax +81-858-22-6843, Email
| | - Yoshitsugu Inoue
- Tottori University, Yonago-city, Tottori, 6838504, Japan,Hino Hospital, Hino-gun, Tottori, 6894504, Japan
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Matsuura K, Takanashi N. The Stop and Press Technique; an Occlusion Free Stop-and-Chop Technique in Cataract Patients with Soft to Moderate Nuclei. Clin Ophthalmol 2022; 16:3283-3287. [PMID: 36237494 PMCID: PMC9553315 DOI: 10.2147/opth.s379325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/12/2022] [Indexed: 11/07/2022] Open
Abstract
The stop-and-chop technique, which involves occlusion and chopping using vacuum to stabilize the nucleus, is an excellent combination of the divide-and-conquer and phaco-chop techniques. However, effectively chopping an un-solid (soft to moderate) nucleus is not easy, since the optimal vacuum to hold an un-solid nucleus is often associated with breaking of occlusion and aspiration of the nucleus. We modified the stop-and-chop technique such that occlusion and tight nucleus holding using ultrasound (US) power is not necessary. After completing the central groove and cracking the nucleus into two hemi-sections, the right nucleus half is chopped without nucleus rotation and occlusion. The right hemi-nucleus is stabilized by pressing against the right sac with the US tip without occlusion. Since this technique can reduce the risk of nucleus perforation and posterior capsular rupture, the surgeons can place the US tip firmly in a deep position, which provide safe and efficient nucleus division.
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Affiliation(s)
- Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, Kurayoshi-city, Japan,Department of Ophthalmology and Visual Science, Tottori University, Yonago-city, Japan,Correspondence: Kazuki Matsuura, Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori Prefecture, 6820863, Japan, Tel +81-858-22-6231, Fax +81-858-22-6843, Email
| | - Nao Takanashi
- Department of Ophthalmology and Visual Science, Tottori University, Yonago-city, Japan
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Matsuura K, Inoue Y. Venom ophthalmia (keratoconjunctivitis) caused by nuchal gland secretion of Rhabdophis tigrinus: case report. J Ophthalmic Inflamm Infect 2022; 12:32. [PMID: 36205819 PMCID: PMC9547041 DOI: 10.1186/s12348-022-00308-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 09/10/2022] [Indexed: 11/21/2022] Open
Abstract
Rhabdophis tigrinus (R. tigrinus) is a common colubrid snake that possesses a series of paired sac-like nuchal glands behind the head. When pressure is applied to the nuchal area, the thin skin over the nuchal glands can rupture and release secretions. In Japan, 19 cases of ophthalmia caused by the nuchal gland secretion of R. tigrinus have been reported. However, only one case has been documented in an English report. A 72-year old woman was sprayed by the nuchal gland fluid of R. tigrinus in her right eye. She presented with symptoms of eye pain and blurred vision. A slit-lamp examination revealed diffuse superficial keratitis, corneal stromal edema with Descemet membrane folds, and conjunctival injection. The best-corrected visual acuity (BCVA) of her right eye was 0.6. She was prescribed 0.5% moxifloxacin and 0.1% fluorometholone eye drops four times a day, and the symptoms resolved without sequelae within 5 days. The BCVA in the right eye improved to 1.0. In previous reports, ophthalmic examinations revealed conjunctivitis, keratitis, and corneal edema with Descemet membrane folds. Topical antibiotics and corticosteroid were prescribed in most cases, and eyes healed within 5-7 days without any sequelae. While corneal edema may resolve spontaneously in a few days when inhibition of the toxin has ceased, the use of topical steroids is recommended, as it can increase the activity of Na/K pumps that remained functional, thereby accelerating recovery. In fact, our patient used a topical steroid and recovered without sequelae.
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Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori, 682-0863, Japan. .,Tottori University, 36-1, Nishi-cho, Yonago-city, Tottori, 683-8504, Japan.
| | - Yoshitsugu Inoue
- Tottori University, 36-1, Nishi-cho, Yonago-city, Tottori, 683-8504, Japan
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Matsuura K, Miyoshi T, Yoshida H, Shimowake T. How to Manage the Cortex After CTR Insertion. Clin Ophthalmol 2022; 16:1085-1089. [PMID: 35422609 PMCID: PMC9005133 DOI: 10.2147/opth.s359319] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/22/2022] [Indexed: 11/23/2022] Open
Abstract
Capsular tension ring (CTR) realizes safe cataract surgery. However, residual cortex removal becomes difficult with CTR. Originally, the flushing technique was developed for intracameral antibiotic administration. Using this technique with larger amounts of solution enables surgeons to 1) deliver antibiotics to the anterior chamber and area behind the intraocular lens, resulting in stable, scheduled antibiotic concentration and 2) entirely irrigate and displace the area, leading to the effective cleansing of residual substances and bacterial pollution. When performing the flushing technique, the residual cortex and debris that were not eliminated by ordinary irrigation and aspiration can be pushed out to the anterior chamber. Applying flushing technique to CTR cases, the residual cortex and debris trapped between the CTR loop and capsular equator is lifted into the anterior chamber and easily removed. If the capsular bag is polluted by bacteria, it may also be lifted to the anterior chamber.
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Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, Kurayoshi-city, Tottori Pref, 6820863, Japan
| | - Teruyuki Miyoshi
- Miyoshi Eye Center, Fukuyama-city, Hiroshima Pref, 7200053, Japan
- Correspondence: Teruyuki Miyoshi, Miyoshi Eye Center, 2-39 Daikoku-cho, Fukuyama-city, Hiroshima Pref, 7200053, Japan, Tel +81-84-927-2222, Fax +81-84-927-2223, Email
| | - Hironori Yoshida
- Miyoshi Eye Center, Fukuyama-city, Hiroshima Pref, 7200053, Japan
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Matsuura K, Terasaka Y. Diffuse anterior and posterior scleritis with multiple iris granular deposits following pterygium excision. Rom J Ophthalmol 2022; 65:399-402. [PMID: 35087985 PMCID: PMC8764424 DOI: 10.22336/rjo.2021.79] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2021] [Indexed: 11/20/2022] Open
Abstract
Surgically induced necrotizing scleritis has been reported after several types of ophthalmic surgeries; however, not many cases are reported following pterygium surgery (PS). A 79-year-old woman underwent primary pterygium excision and conjunctival autograft transportation with mitomycin C in her left eye. 18 months postoperatively, diffuse anterior and posterior scleritis was noted; however, scleral necrosis was not apparent. Multiple granular deposits were observed on the surface of the iris. The deposits, aqueous humor, and vitreous were examined. Since there were no signs of infection or malignancy, the patient was diagnosed with scleritis with intraocular inflammation following PS. Necrosis was accompanying at the surgical site in most cases of scleritis following PS. However, the scleral necrosis of the surgical site was not significant in our case. Posterior scleritis associated with PS has never been reported. This is the first report of anterior diffuse scleritis accompanied by posterior scleritis following PS. Abbreviations: PS = pterygium surgery, SINS = surgically induced necrotizing scleritis, MMC = mitomycin C, ANCA = antineutrophil cytoplasmic antibody
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Matsuura K, Yoshimura H, Shinagawa J, Kurozumi M, Takumi Y. Audiological Features in 63 Patients With Cochlear Nerve Deficiency. Otol Neurotol 2022; 43:23-28. [PMID: 34538855 DOI: 10.1097/mao.0000000000003365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We aimed to investigate the clinical features of cochlear nerve deficiency (CND), and in particular, the long-term course of hearing disability and audiogram shapes. STUDY DESIGN Retrospective observational nonrandomized group study. SETTING Academic medical center. PATIENTS/INTERVENTIONS The subjects were 63 children with congenital hearing loss who visited our hospital between 2009 and 2019 and underwent MRI, based on which they were diagnosed with CND. There were 61 cases of unilateral CND and two cases of bilateral CND. MAIN OUTCOME MEASURES Imaging tests by MRI and CT and audiometric assessments by pure-tone audiometry and distortion product otoacoustic emission were performed. RESULTS Among the cases of CND diagnosed by assessing the cochlear nerve on MRI, approximately 20% of the bony cochlear nerve canals that could be assessed on CT were normal. Of the 61 cases diagnosed with unilateral CND, 55 cases had cochlear nerve aplasia (90.2%), and six had cochlear nerve hypoplasia (9.8%), with a mean hearing ability of 92.2 and 94.6 dB HL, respectively. Thus, the majority of cases had severe-to-profound hearing loss. The overall audiometric patterns were 78.7% flat, 9.8% cookie-bite, and 9.8% high-frequency. Six of 61 cases (9.8%) had a distortion product otoacoustic emission (DPOAE) response based on the affected side, and none of the cases lost the response during follow-up. CONCLUSIONS Herein, we report the largest study on CND and performed CND image and audiometric assessments. Accurately in diagnosing CND requires not only CT but also MRI assessment. Hearing loss is often severe to profound; however, various audiometric patterns have been observed. CND includes a small number of cases that respond to DPOAE, indicating that some CND cases are clinically diagnosed with auditory neuropathy spectrum disorder (ANSD). A sustained DPOAE response might help in differentiating CND from other ANSDs. Children with congenital deafness who have passed the newborn hearing screening by DPOAE should be examined by MRI to rule out CND.
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Affiliation(s)
| | | | | | - Masahiro Kurozumi
- Department of Radiology, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
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Kuwayama T, Matsuura K, Gouchi J, Yamakawa Y, Mizukami Y, Kasahara S, Matsuda Y, Shibauchi T, Kontani H, Uwatoko Y, Fujiwara N. Pressure-induced reconstitution of Fermi surfaces and spin fluctuations in S-substituted FeSe. Sci Rep 2021; 11:17265. [PMID: 34446750 PMCID: PMC8390510 DOI: 10.1038/s41598-021-96277-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/04/2021] [Indexed: 11/19/2022] Open
Abstract
FeSe is a unique high-\documentclass[12pt]{minimal}
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\begin{document}$$T_c$$\end{document}Tc iron-based superconductor in which nematicity, superconductivity, and magnetism are entangled with each other in the P-T phase diagram. We performed \documentclass[12pt]{minimal}
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\begin{document}$$^{77}$$\end{document}77Se-nuclear magnetic resonance measurements under pressures of up to 3.9 GPa on 12% S-substituted FeSe, in which the complex overlap between the nematicity and magnetism are resolved. A pressure-induced Lifshitz transition was observed at 1.0 GPa as an anomaly of the density of states and as double superconducting (SC) domes accompanied by different types of antiferromagnetic (AF) fluctuations. The low-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc SC dome below 1 GPa is accompanied by strong AF fluctuations, whereas the high-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc SC dome develops above 1 GPa, where AF fluctuations are fairly weak. These results suggest the importance of the \documentclass[12pt]{minimal}
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\begin{document}$$d_{xy}$$\end{document}dxy orbital and its intra-orbital coupling for the high-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc superconductivity.
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Affiliation(s)
- T Kuwayama
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, Kyoto, 606-8501, Japan
| | - K Matsuura
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.,Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan
| | - J Gouchi
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - Y Yamakawa
- Department of Physics, Nagoya University, Furo-cho, Nagoya, 464-8602, Japan
| | - Y Mizukami
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - S Kasahara
- Division of Physics and Astronomy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.,Department of Physics, Okayama University, Okayama, 700-8530, Japan
| | - Y Matsuda
- Division of Physics and Astronomy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - T Shibauchi
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - H Kontani
- Department of Physics, Nagoya University, Furo-cho, Nagoya, 464-8602, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - N Fujiwara
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, Kyoto, 606-8501, Japan.
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Fujisawa T, Motegi A, Zenda S, Hojo H, Nakamura M, Hirano Y, Hirata H, Vijay Parshuram R, Matsuura K, Shinozaki T, Hayashi R, Akimoto T. PO-1007 Radiotherapy with delayed accelerated hyperfractionated boost for node negative hypopharynx cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07458-2] [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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Matsuura K, Uotani R, Inoue Y. Bilateral diffuse anterior scleritis after unilateral cataract surgery: A case report. J PAK MED ASSOC 2021; 71:1014-1016. [PMID: 34057967 DOI: 10.47391/jpma.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Surgically induced scleritis (SIS) is a rare complication after a variety of ocular surgeries. Majority of the patients had had two or more surgical procedures before the onset of SIS. We report a patient who developed bilateral diffuse scleritis after unilateral cataract surgery. A 64-year-old man presented with red eye and tenderness in the right eye. An uneventful cataract surgery had been conducted in the right eye 5 months earlier. He had lost vision in the left eye 25 years ago, and there had been no ocular symptoms in both the eyes for the previous 20 years. Scleritis of the right eye appeared 5 months after cataract surgery, and scleritis of the left eye developed three months later. No previous reports referred to the possibility that the right eye surgery could induce scleritis in the left eye. Our case implies that surgical trauma in one eye can induce scleritis in both the eyes with a history of severe inflammation.
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Affiliation(s)
- Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, Tottori, Japan
| | - Ryu Uotani
- Department of Ophthalmology, Tottori University, Tottori, Japan
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Takeuchi A, Uemura A, Goya S, Shimada K, Yoshida T, Hara S, Sato K, Shiraishi K, Yairo A, Kto K, Matsuura K, Tanaka R. The utility of patent ductus arteriosus closure with hemostatic clip in dogs. Pol J Vet Sci 2021; 23:255-260. [PMID: 32627978 DOI: 10.24425/pjvs.2020.133640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study investigated the utility of patent ductus arteriosus (PDA) closure with hemostatic clip by comparing with traditional PDA closure. Medical records of 51 dogs with surgical closure of PDA were reviewed and retrospective study was conducted. 29 dogs were treated by procedure with hemostatic clip (Group HC), and 22 dogs were treated by surgical ligation (Group SL). Data pertaining to breed, sex, age and body weight at the time of surgery, echocardiographic minimal ductal diameter, duration of surgery, hemostatic clip size, echocardiographic findings, hemor-rhage, residual ductal flow and recanalization were collected from records. The results showed that procedure with hemostatic clip had been selected in lighter dogs than traditional PDA closure. Duration of surgery performed only hemostatic clip technique was significantly shorter than that in group SL. Preoperative LVIDd, E-wave and FS were significantly lower than postoperative ones. As regard all parameters, the differences between pre- and postoperative periods were not significantly different between group HC and group SL. Hemorrhage, residual ductal flow, and recanalization were not significantly different in both groups. The present study showed that procedure with hemostatic clip is beneficial in that it is available in smaller dogs and can make shorter operation duration than traditional PDA closure. Moreover, the procedure is effective for the resolution of volume overload of the left atrium and ventricle in short-term outcome. Complications including hemorrhage, residual ductal flow and recanaliza-tion were not significantly different with both techniques.
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Affiliation(s)
- A Takeuchi
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - A Uemura
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - S Goya
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Shimada
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - T Yoshida
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - S Hara
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Sato
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Shiraishi
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - A Yairo
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Kto
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Matsuura
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - R Tanaka
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
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Omatsu Y, Miyazaki D, Shimizu Y, Matsuura K, Sasaki SI, Inoue Y, Uchio E, Fujimoto T. Efficacy of compartmentalization in controlling an adenovirus type 54 keratoconjunctivitis outbreak on Oki Island, Japan. Jpn J Ophthalmol 2021; 65:423-431. [PMID: 33634367 PMCID: PMC7906084 DOI: 10.1007/s10384-021-00826-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 12/09/2020] [Indexed: 12/02/2022]
Abstract
PURPOSE To analyze the epidemiologic characteristics of an outbreak of human adenovirus type 54 (HAdV-54) on Oki Island, Shimane Prefecture, Japan, in 2017 and to assess the effectiveness of a compartmentalization method in controlling the incidence and spread. STUDY DESIGN Retrospective cohort study. METHODS The infection was diagnosed in 136 individuals, and typing was confirmed by PCR and direct sequencing. The epidemiologic characteristics of the disease including the infection rate, incubation period, and basic reproductive number (R0), ie, number of cases directly infected by an infectious patient during the course of the disease, were investigated. The effectiveness of compartmentalization for infection control was determined by simulating the outbreak using the Susceptible-Exposed-Infectious-Recovered (SEIR) model. RESULTS The majority of the HAdV-54-infected individuals were the children of 3 nursery schools (A, B, and C) and their parents on Oki Island. The infection rates in the 3 schools were 13.2%, 16.9%, and 17.2%, respectively. The one class of school B without the index case was initially compartmentalized, and the infection rate in this compartment was 0%. The incubation period was calculated to be 9.3 ± 3.5 days, and the disease duration, 13.0 ± 5.4 days. The R0 was 1.43. Using these parameters, a SEIR model was constructed. The SEIR model well predicted the daily incidence of infection and indicated that the compartmentalization method provides effective reduction in the incidence of the infection, with much earlier control. CONCLUSIONS The compartmentalization method is effective to control HAdV-54 outbreaks.
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Affiliation(s)
- Yutaka Omatsu
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago Tottori, 683-8504, Japan.
| | - Dai Miyazaki
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago Tottori, 683-8504, Japan
| | - Yumiko Shimizu
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago Tottori, 683-8504, Japan
| | - Kazuki Matsuura
- Division of Ophthalmology of Nojima Hospital, Tottori, Japan
| | - Shin-Ichi Sasaki
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago Tottori, 683-8504, Japan
| | - Yoshitsugu Inoue
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago Tottori, 683-8504, Japan
| | - Eiichi Uchio
- Department of Ophthalmology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
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Affiliation(s)
- Kazuki Matsuura
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
| | - Keiichi Kuboyama
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
| | - Toshiaki Ougizawa
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
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15
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Matsuura K, Terasaka Y, Miyazaki D, Shimizu Y, Inoue Y. Quantitative investigation of viral load in acute to subacute human adenovirus type 54 conjunctivitis. Jpn J Infect Dis 2021; 74:567-569. [PMID: 33790064 DOI: 10.7883/yoken.jjid.2020.1019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To understand the clinical course of human adenoviral (HAdV) conjunctivitis for establishing a better treatment regimen, thirty-eight eyes of 19 patients with HAdV-54 conjunctivitis for less than one week from onset were evaluated for clinical signs and symptoms and DNA copy numbers. It is observed that a viral load of 104-105 is required to develop symptoms of HAdV conjunctivitis, as symptoms were present in all the eyes whose viral load was ≥104 at least once during the course. Next, it is observed that asymptomatic infections in contralateral eyes are common as the virus was detected in most eyes that did not develop conjunctivitis. Furthermore, there was no rapid decrease of the viral load in healed eyes, on the contrary, the viral load in healed eyes on day 15 was significantly higher than in unhealed eyes. This was likely due to corticosteroid instillation that rapidly alleviated symptoms but prolonged the duration of viral shedding. Recently, combination treatment with iodine and corticosteroids has been recommended for HAdV conjunctivitis. Assessing changes in viral load as well as clinical symptoms would be helpful to better understand the clinical course of this disease.
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Affiliation(s)
| | | | - Dai Miyazaki
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, Japan
| | - Yumiko Shimizu
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, Japan
| | - Yoshitsugu Inoue
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, Japan
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Matsuura K, Kuboyama K, Ougizawa T. Effect of tacticity of poly(methyl methacrylate) on interfacial region with silica in polymer nanocomposite. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kazuki Matsuura
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
| | - Keiichi Kuboyama
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
| | - Toshiaki Ougizawa
- Department of Materials Science and Engineering Tokyo Institute of Technology Tokyo Japan
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17
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Eguchi A, Yoneoka D, Shi S, Tanoue Y, Kawashima T, Nomura S, Matsuura K, Makiyama K, Ejima K, Gilmour S, Nishiura H, Miyata H. Trend change of the transmission route of COVID-19-related symptoms in Japan. Public Health 2020; 187:157-160. [PMID: 32980782 PMCID: PMC7455197 DOI: 10.1016/j.puhe.2020.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/08/2020] [Accepted: 08/20/2020] [Indexed: 11/02/2022]
Abstract
OBJECTIVES The Japanese prime minister declared a state of emergency on April 7 2020 to combat the outbreak of coronavirus disease 2019 (COVID-19). This declaration was unique in the sense that it was essentially driven by the voluntary restraint of the residents. We examined the change of the infection route by investigating contact experiences with COVID-19-positive cases. STUDY DESIGN This study is a population-level questionnaire-based study using a social networking service (SNS). METHODS To assess the impact of the declaration, this study used population-level questionnaire data collected from an SNS with 121,375 respondents (between March 27 and May 5) to assess the change in transmission routes over the study period, which was measured by investigating the association between COVID-19-related symptoms and (self-reported) contact with COVID-19-infected individuals. RESULTS The results of this study show that the declaration prevented infections in the workplace, but increased domestic infections as people stayed at home. However, after April 24, workplace infections started to increase again, driven by the increase in community-acquired infections. CONCLUSIONS While careful interpretation is necessary because our data are self-reported from voluntary SNS users, these findings indicate the impact of the declaration on the change in transmission routes of COVID-19 over time in Japan.
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Affiliation(s)
- A Eguchi
- Department of Sustainable Health Science, Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - D Yoneoka
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Graduate School of Public Health, St. Luke's International University, Tokyo, Japan; Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Shi
- Department of Systems Pharmacology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Osaka, Japan
| | - Y Tanoue
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | - T Kawashima
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - S Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Matsuura
- Department of Management Science, Graduate School of Engineering, Tokyo University of Science, Tokyo, Japan; HOXO-M Inc., Tokyo, Japan
| | - K Makiyama
- HOXO-M Inc., Tokyo, Japan; Yahoo Japan Corporation, Tokyo, Japan
| | - K Ejima
- Department of Epidemiology and Biostatistics, Indiana University School of Public Health-Bloomington, Bloomington, USA
| | - S Gilmour
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Nishiura
- Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - H Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan.
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Matsuura K, Miyazaki D, Sasaki SI, Inoue Y, Sasaki Y, Shimizu Y. Conjunctival bacterial flora and antimicrobial susceptibility in bacterial pathogens isolated prior to cataract surgery. Jpn J Ophthalmol 2020; 64:423-428. [PMID: 32458168 DOI: 10.1007/s10384-020-00746-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/08/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE To optimize prophylactic antibiotic administration, antibiotic susceptibility before cataract surgery was investigated using ocular bacteria isolated preoperatively. DESIGN Retrospective cross-sectional study. METHODS In 204 eyes of 102 patients who underwent routine bilateral cataract surgery, conjunctival sac scrapings were collected 1-2 weeks before surgery. A total of 192 major pathogens among the 470 isolated bacteria were subjected to susceptibility testing. The major pathogens included Staphylococcus aureus, Staphylococcus epidermidis, coagulase-negative staphylococci (CNS) other than S. epidermidis, Enterococcus faecalis, and Streptococcus spp. The following antibiotics were tested: cefmenoxime (CMX), ceftazidime (CAZ), tobramycin (TOB), vancomycin (VAN), erythromycin (EM), moxifloxacin (MFLX), gatifloxacin (GFLX), levofloxacin (LVFX), chloramphenicol (CP), and imipenem (IP). RESULTS The proportions of isolates with minimum inhibitory concentration (MIC) of S. epidermidis (N = 82), exceeding 4 μg/ml were high for CAZ (95.1%), EM (32.9%), LVFX (39.0%), and CP (82.9%). Susceptible (S) proportion was high for CMX (98.8%), VAN (100%), CP (93.9%), and IP (97.6%) but relatively low for MFLX (59.8%), GFLX (54.9%), and LVFX (54.9%). The MIC90 values were high for CMX (16 μg/ml), CAZ (64 μg/ml), TOB (32 μg/ml), EM (128 μg/ml), LVFX (16 μg/ml), and CP (8 μg/ml). The MIC of quinolonesof pathogenic bacteria other than S.epidermidis (N = 108), exceeded 4 μg/ml for 11 isolates, including two Methicillin-resistant Staphylococcus aureus. CONCLUSIONS The increase in resistance of resident bacteria present in the conjunctival sac to antibiotics indicates that systemic and topical antibiotics are no longer effective, especially against external organisms affecting the eye.
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Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi, Tottori, 682-0863, Japan.
| | - Dai Miyazaki
- Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Shin-Ichi Sasaki
- Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Yoshitsugu Inoue
- Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Yumi Sasaki
- The Research Foundation for Microbial Diseases of Osaka University, 3-1, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yumiko Shimizu
- Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan
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Matsuura K, Miyazaki D, Sasaki SI, Inoue Y, Sasaki Y, Shimizu Y. Effectiveness of intraoperative iodine in cataract surgery: cleanliness of the surgical field without preoperative topical antibiotics. Jpn J Ophthalmol 2019; 64:37-44. [PMID: 31776820 DOI: 10.1007/s10384-019-00703-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/30/2019] [Indexed: 11/25/2022]
Abstract
PURPOSE To verify the possibility that preoperative topical antibiotics are not essential as long as iodine disinfection is performed during surgery. STUDY DESIGN Crossover equivalence trial. PATIENTS AND METHODS In 204 eyes of 102 patients who underwent routine bilateral cataract surgery, 1 eye was treated with intraoperative iodine, and the other, with preoperative topical antibiotics. For the intraoperative iodine eyes, 5 mL of 0.25% povidone-iodine was applied at 2 stages: (1) just after the placement of the speculum and (2) before intraocular lens (IOL) insertion. For the contralateral eyes, preoperative topical antibiotics were administered 3 days before surgery without intraoperative iodine. Conjunctival samples for culture were obtained at 3 time points: (a) presurgery, (b) beginning of surgery, and (c) postsurgery. Real-time polymerase chain reaction (PCR) samples were obtained at the beginning of surgery and before IOL insertion. Intracameral moxifloxacin was applied in all the cases. RESULTS The respective positive bacterial culture rates for intraoperative iodine eyes and preoperative topical antibiotics eyes were 95.1% and 98.0% at (a), 7.8% and 5.9% at (b), and 60.8% and 62.7% at (c). A significant difference in the positive bacterial culture rate was not found at any time point. For the intraoperative iodine eyes, the bacterial DNA copy number at (b) was significantly lower than that for the preoperative topical antibiotics eyes. CONCLUSIONS The cleanliness of the operative field without using topical antibiotics was revealed to be equivalent to that of the conventional method (using preoperative antibiotics without intraoperative iodine) as long as intraoperative iodine was used.
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Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, 2714-1 Sesaki-machi, Kurayoshi, Tottori, 682-0863, Japan.
| | | | | | | | - Yumi Sasaki
- The Research Foundation for Microbial Diseases of Osaka University, Osaka, Japan
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Morishita Y, Hayashi R, Matsuura K, Shinozaki T, Okano W, Tomioka T. Segmental mandibulectomy without reconstruction. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz428.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Matsuura K, Sato Y, Terauchi M, Aono M, Hashimoto S, Ogawa S, Takakuwa Y. PM-06 Electronic Structure of Nitrogen-Doped Graphite Films Studied by Soft X-ray Emission Spectroscopy. Microscopy (Oxf) 2019. [DOI: 10.1093/jmicro/dfz092] [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: 11/13/2022] Open
Affiliation(s)
| | - Y Sato
- IMRAM, Tohoku University, Sendai, Japan
| | | | - M Aono
- Kagoshima University, Kagoshima, Japan
| | | | - S Ogawa
- IMRAM, Tohoku University, Sendai, Japan
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22
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Kuwayama T, Matsuura K, Mizukami Y, Kasahara S, Matsuda Y, Shibauchi T, Uwatoko Y, Fujiwara N. Pressure-induced Lifshitz transition in FeSe$_{0.88}$S$_{0.12}$ probed via $^{77}$Se-NMR. Pap Phys 2019. [DOI: 10.4279/pip.110003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Recently, FeSe$_{1-x}$S$_x$ systems have received much attention because of the unique pressure-temperature phase diagram. We performed $^{77}$Se-NMR measurements on a single crystal of FeSe$_{0.88}$S$_{0.12}$ to investigate its microscopic properties. The shift of $^{77}$Se spectra exhibits anomalous enhancement at $1.0~\mathrm{GPa}$, suggesting a topological change in the Fermi surfaces, so-called Lifshitz transition, occurs at $1.0~\mathrm{GPa}$. The magnetic fluctuation simultaneously changes its properties, which implies a change in the dominant nesting vector.
Edited by: A. Goñi, A. Cantarero, J. S. Reparaz
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Matsuura K, Takami T, Maeda M, Hisanaga T, Fujisawa K, Saeki I, Matsumoto T, Hidaka I, Yamamoto N, Sakaida I. Evaluation of the Effects of Cultured Bone Marrow Mesenchymal Stem Cell Infusion on Hepatocarcinogenesis in Hepatocarcinogenic Mice With Liver Cirrhosis. Transplant Proc 2019; 51:925-935. [PMID: 30979485 DOI: 10.1016/j.transproceed.2019.03.011] [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: 11/24/2022]
Abstract
OBJECTIVES Liver transplantation remains the only curative therapy for decompensated liver cirrhosis. However, it has several limitations, and not all patients can receive liver transplants. Therefore, liver regenerative therapy without liver transplantation is considered necessary. In this study, we attempted minimally invasive liver regenerative therapy by peripheral vein infusion of bone marrow-derived mesenchymal stem cells (BMSCs) cultured from a small amount of autologous bone marrow fluid and evaluated the effects of BMSCs on hepatocarcinogenesis in a mouse model. METHODS C57BL/6 male mice were injected intraperitoneally with N-nitrosodiethylamine once at 2 weeks of age, followed by carbon tetrachloride twice a week from 6 weeks of age onwards, to create a mouse model of highly oncogenic liver cirrhosis. From 10 weeks of age, mouse isogenic green fluorescent protein-positive BMSCs (1.0 × 106/body weight) were infused once every 2 weeks, for a total of 5 times, and the effects of frequent BMSC infusion on hepatocarcinogenesis were evaluated. RESULTS In the histologic evaluation, no significant differences were observed between the controls and BMSC-administered mice in terms of incidence rate, number, or average size of foci and tumors. However, significant suppression of fibrosis and liver injury was confirmed in the group that received BMSC infusions. DISCUSSION Considering that BMSC infusion did not promote carcinogenesis, even in the state of highly oncogenic liver cirrhosis, autologous BMSC infusion might be a safe and effective therapy for human decompensated liver cirrhosis.
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Affiliation(s)
- K Matsuura
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Takami
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Regenerative Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.
| | - M Maeda
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Hisanaga
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Department of Medical Education, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - K Fujisawa
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Regenerative Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - I Saeki
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Matsumoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - I Hidaka
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Liver Disease, Yamaguchi University Hospital, Yamaguchi University School of Medicine, Yamaguchi, Japan
| | - N Yamamoto
- Health Administration Center, Yamaguchi University, Yamaguchi, Japan
| | - I Sakaida
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Liver Disease, Yamaguchi University Hospital, Yamaguchi University School of Medicine, Yamaguchi, Japan
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Matsuura K, Ishikura R, Oguri M, Saito Y. Atypical Symptoms in Migraine-Related Alice in Wonderland Syndrome: Expansion of the Phenotype and Reflection on the Pathomechanism. Yonago Acta Med 2019. [PMID: 30962760 DOI: 10.33160/yam.2019.03.023] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report an 8-year-old girl who experienced daily episodes of visual and somesthetic distortion and was diagnosed with Alice in wonderland syndrome (AIWS). Ophthalmologic assessment revealed best-corrected visual acuity of 0.2 in both eyes, and bilateral constricted tubular or spiral visual fields. Augmented amplitude of visually evoked potentials was revealed, and treatment with lomerizine and valproate showed favorable effect on the visual/somesthetic distortion as well as the visual field and acuity. Psychogenic visual problems can co-exist with the typical sensory distortion in AIWS, similarly to the case of psychogenic pseudo-seizures in subjects with epilepsy. Otherwise, an ambiguous borderline between psychological and physical pathomechanisms in migraine may also be characteristic of the migraine-related AIWS.
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Affiliation(s)
- Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, Kurayoshi 682-0863, Japan
| | - Ryoko Ishikura
- †Department of Ophthalmology, Tottori University Hospital, Yonago 683-8504, Japan
| | - Masayoshi Oguri
- ‡Department of Pathobiological Science and Technology, School of Health Science, Tottori University Faculty of Medicine, Yonago 683-8503, Japan
| | - Yoshiaki Saito
- ¶Division of Child Neurology, Department of Brain and Neurosciences, School of Medicine, Tottori University Faculty of Medicine, Yonago 683-8503, Japan
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Matsuura K, Terasaka Y, Uchio E, Saeki Y, Fujimoto T, Hanaoka N, Miyazaki D, Inoue Y. Human adenoviral type 54 keratoconjunctivitis accompanied by stellate keratitis and keratic precipitates: two cases. BMC Ophthalmol 2019; 19:7. [PMID: 30616635 PMCID: PMC6323660 DOI: 10.1186/s12886-018-1025-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 12/28/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Of the 10 patients with adenoviral type 54 keratoconjunctivitis examined at Nojima Hospital, 2 developed stellate keratitis and mutton-fat keratic precipitates (KPs) following acute symptoms. CASE PRESENTATION We encountered 10 cases of epidemic keratoconjunctivitis from August to October 2017. All patients were adults with a mean age of 60.9 ± 10.0 years. The species D human adenovirus (HAdV)-54 was detected in the conjunctival scrapings of these patients. Fluorometholone instillation was administered during the first week for acute symptomatic relief. Case 1: A 64-year-old female was prescribed with fluorometholone instillation, which was discontinued after 1 week when her symptoms alleviated. One week after discontinuation of the instillation, she presented with blurred vision in her left eye with KPs and multiple stellate keratitis. The anterior chamber had no apparent cells. Her symptoms disappeared after 1 week of betamethasone instillation. Case 2: A 66-year-old female was prescribed with 0.1% fluorometholone instillation, which was discontinued within10 days. Three months after the appearance of initial symptoms, multiple subepithelial corneal infiltrates (MSI) appeared in her eyes. Stellate keratitis and dark-brown pigmentation were observed in the centres of MSI, with several cells in the anterior chamber. Betamethasone was prescribed, and MSI and stellate keratitis improved within 1 week. However, KPs were observed in the left eye. The instillation was continued for 3 more weeks until symptoms improved. CONCLUSIONS MSI is an immune reaction that occurs after the disappearance of acute symptoms. Here, corneal findings and KPs were observed after improvement in eye redness and discontinuation of steroids. These symptoms were presumed to be secondary inflammation due to immune response to the adenoviral antigen. The clinical features of HAdV-54 keratoconjunctivitis on the ocular surface are initially moderate, but become active in the subacute to chronic phases. This may develop atypical findings, including stellate keratitis with KPs. Although early steroid administration can relieve acute symptoms, it may facilitate chronic corneal immunological reaction.
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Affiliation(s)
- Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, 2714-1 Sesaki-machi Kurayoshi City, Tottori, 682-0863, Japan.
| | - Yuki Terasaka
- Department of Ophthalmology, Nojima Hospital, 2714-1 Sesaki-machi Kurayoshi City, Tottori, 682-0863, Japan
| | - Eiichi Uchio
- Department of Ophthalmology, Faculty of Medicine, Fukuoka University, 45-1 7 chome Nanakuma Jonan-ku, Fukuoka City, Fukuoka, Japan
| | - Yusuke Saeki
- Department of Ophthalmology, Faculty of Medicine, Fukuoka University, 45-1 7 chome Nanakuma Jonan-ku, Fukuoka City, Fukuoka, Japan
| | - Tsuguto Fujimoto
- Infectious Diseases Surveillance Centre, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Nozomu Hanaoka
- Infectious Diseases Surveillance Centre, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Dai Miyazaki
- Department of Ophthalmology, Faculty of Medicine, Tottori University, 36-1 Nishicho Yonago City, Tottori, Japan
| | - Yoshitsugu Inoue
- Department of Ophthalmology, Faculty of Medicine, Tottori University, 36-1 Nishicho Yonago City, Tottori, Japan
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Tasaki E, Matsuura K, Iuchi Y. Hypoxia adaptation in termites: hypoxic conditions enhance survival and reproductive activity in royals. Insect Mol Biol 2018; 27:808-814. [PMID: 29989656 DOI: 10.1111/imb.12519] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Termite royals (queen and king) exhibit extraordinary longevity without sacrificing reproductive performance, unlike most animals, in whom lifespan is generally negatively associated with reproduction. Therefore, the regulatory mechanisms underlying longevity have attracted much attention. Although the ageing process is influenced by environmental factors in many insects during their life cycle, it remains unclear whether any factors have an effect on the extended survival and high reproductive capacity of termite royals. Here, we show that hypoxia, possibly an important environmental factor in the nests, enhances survival and reproductive activity in incipient royals of the subterranean termite Reticulitermes speratus compared with those in control conditions. Quantitative real-time PCR analysis revealed that the expression levels of the vitellogenin gene in queens are maintained to a greater extent under hypoxic conditions than under control conditions. The expression levels of the antioxidant enzyme genes RsCAT1 and RsPHGPX are also significantly promoted by hypoxia in queens and kings respectively. These results suggest that hypoxic exposure can contribute in part to achieving high reproductive output by altering gene expression after founding of colonies in the royals. Our study provides novel insights into the effect of a nest environment on the reproductive characteristics in termite royals.
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Affiliation(s)
- E Tasaki
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- Department of Applied Bioresources Chemistry, The United Graduate School of Agriculture, Tottori University, Tottori, Japan
| | - K Matsuura
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Y Iuchi
- Department of Applied Bioresources Chemistry, The United Graduate School of Agriculture, Tottori University, Tottori, Japan
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
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Hirokawa J, Matsuura K, Katsuta T, Kagemoto M. Investigation of the Optimum S-1 Dosing Schedule of Concurrent Chemoradiotherapy for T2N0 Glottic Cancer: A Comparison of Alternate-Day Administration Versus Daily Administration. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.841] [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: 10/28/2022]
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28
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Imamura Y, Kiyota N, Akimoto T, Ogawa G, Eba J, Minami S, Hasegawa Y, Iwae S, Monden N, Matsuura K, Fujii H, Onozawa Y, Homma A, Hayashi R, Tahara M. Nutritional support dependence after curative chemoradiotherapy in head and neck cancer: A supplementary analysis of a phase II trial (JCOG0706S1). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.068] [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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Grzybowski A, Schwartz SG, Matsuura K, Ong Tone S, Arshinoff S, Ng JQ, Meyer JJ, Liu W, Jacob S, Packer M, Lutfiamida R, Tahija S, Roux P, Malyugin B, Urrets-Zavalia JA, Crim N, Esposito E, Daponte P, Pellegrino F, Graue-Hernandez EO, Jimenez-Corona A, Valdez-Garcia JE, Hernandez-Camarena JC, Relhan N, Flynn HW, Ravindran RD, Behnding A. Endophthalmitis Prophylaxis in Cataract Surgery: Overview of Current Practice Patterns Around the World. Curr Pharm Des 2017; 23:565-573. [PMID: 27981903 DOI: 10.2174/1381612822666161216122230] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 12/08/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Acute-onset postoperative endophthalmitis after cataract surgery remains a rare but important cause of visual loss. There is no global consensus regarding the optimal strategies for prophylaxis of endophthalmitis and practices vary substantially around the world, especially with respect to the use of intracameral antibiotics. The European Society of Cataract & Refractive Surgeons in a randomized clinical trial (2007) reported an approximately 5-fold reduction in endophthalmitis rates associated with the use of intracameral cefuroxime. Despite this report, the use of intracameral antibiotics has not been universally adopted. METHODS Various endophthalmitis prophylaxis patterns around the world (including the United States, Canada, Australia/New Zealand, Japan, China, India, Indonesia, South Africa, Argentina, Russia, Sweden and Mexico) are compared. Each contributing author was asked to provide similar information, including endophthalmitis rates based on published studies, current practice patterns, and in some cases original survey data. Various methods were used to obtain this information, including literature reviews, expert commentary, and some new survey data not previously published. RESULTS Many different practice patterns were reported from around the world, specifically with respect to the use of intracameral antibiotics. CONCLUSION There is no worldwide consensus regarding endophthalmitis prophylaxis with cataract surgery.
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Affiliation(s)
- Andrzej Grzybowski
- Professor of Ophthalmology, Department of Ophthalmology Poznan City Hospital, Ul. Szwajcarska 3, 60- 285, Poznan. Poland
| | - Stephen G Schwartz
- Department of Ophthalmology, University of Warmia and Mazury, Olsztyn. Poland
| | - Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, Tottori. Japan
| | - Stephan Ong Tone
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON. United States
| | - Steve Arshinoff
- Division of Ophthalmology, McMaster University, Hamilton, ON. Canada
| | - Jonathon Q Ng
- Eye and Vision Epidemiology Research Group, The University of Western Australia Perth. Australia
| | - Jay J Meyer
- Department of Ophthalmology, University of Auckland. New Zealand
| | - Wu Liu
- Department of Ophthalmology, Beijing Tongren Hospital Eye Center, Capital Medical University Beijing. China
| | | | - Mark Packer
- Department of Ophthalmology, Oregon Health & Science University, Portland, Oregon. United States
| | | | | | - Paul Roux
- Visionmed Eye and Laser Clinic, Johannesburg. South Africa
| | - Boris Malyugin
- S. Fyodorov Eye Microsurgery State Institution, Moscow. Russian Federation
| | - Julio A Urrets-Zavalia
- Department of Ophthalmology, University Clinic Reina Fabiola, Catholic University of Cordoba. Argentina
| | - Nicolas Crim
- Department of Ophthalmology, University Clinic Reina Fabiola, Catholic University of Cordoba. Argentina
| | - Evangelina Esposito
- Department of Ophthalmology, University Clinic Reina Fabiola, Catholic University of Cordoba. Argentina
| | - Pablo Daponte
- Argentine Council of Ophthalmology, Buenos Aires. Argentina
| | - Fernando Pellegrino
- Department of Ophthalmology, Santa Lucia Hospital, University of Buenos Aires. Argentina
| | | | - Aida Jimenez-Corona
- Instituto de Oftalmologia Fundacion Conde de Valenciana, Mexico City. Mexico
| | | | | | - Nidhi Relhan
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL. United States
| | - Harry W Flynn
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL. United States
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Matsuura K, Mizukami Y, Arai Y, Sugimura Y, Maejima N, Machida A, Watanuki T, Fukuda T, Yajima T, Hiroi Z, Yip KY, Chan YC, Niu Q, Hosoi S, Ishida K, Mukasa K, Kasahara S, Cheng JG, Goh SK, Matsuda Y, Uwatoko Y, Shibauchi T. Maximizing T c by tuning nematicity and magnetism in FeSe 1-x S x superconductors. Nat Commun 2017; 8:1143. [PMID: 29070845 PMCID: PMC5656606 DOI: 10.1038/s41467-017-01277-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 09/04/2017] [Indexed: 11/13/2022] Open
Abstract
A fundamental issue concerning iron-based superconductivity is the roles of electronic nematicity and magnetism in realising high transition temperature (T c). To address this issue, FeSe is a key material, as it exhibits a unique pressure phase diagram involving non-magnetic nematic and pressure-induced antiferromagnetic ordered phases. However, as these two phases in FeSe have considerable overlap, how each order affects superconductivity remains perplexing. Here we construct the three-dimensional electronic phase diagram, temperature (T) against pressure (P) and isovalent S-substitution (x), for FeSe1-x S x . By simultaneously tuning chemical and physical pressures, against which the chalcogen height shows a contrasting variation, we achieve a complete separation of nematic and antiferromagnetic phases. In between, an extended non-magnetic tetragonal phase emerges, where T c shows a striking enhancement. The completed phase diagram uncovers that high-T c superconductivity lies near both ends of the dome-shaped antiferromagnetic phase, whereas T c remains low near the nematic critical point.
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Affiliation(s)
- K Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Arai
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Sugimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - N Maejima
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - A Machida
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Watanuki
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Fukuda
- Materials Sciences Research Center, Japan Atomic Energy Agency (SPring-8/JAEA), Sayo, Hyogo, 679-5148, Japan
| | - T Yajima
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - Z Hiroi
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - K Y Yip
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y C Chan
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Q Niu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S Hosoi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Ishida
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Mukasa
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - S Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
| | - S K Goh
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan.
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31
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Matsuura K, Katsuta T, Hirokawa J, Okabe T, Kagemoto M. Efficacy of Escalating the Dose to 54 Gy on Accelerated Hyperfractionated Thoracic Radiation Therapy for Limited-stage Small-cell Lung Cancer: The 6-year Outcomes at a Single Institution. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1750] [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: 10/18/2022]
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Tachibana K, HIrata Y, Katoh N, Ishikawa H, Shimada T, Shindo A, Matsuura K, Asahi M, Satoh M, Ii Y, Taniguchi A, Tomimoto H. Differentiation of drug-induced parkinsonism and PD; Utility of 123I-FP-CIT SPECT(DaTscan). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2686] [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: 11/17/2022]
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Ishikawa H, Shindo A, Ii Y, Niwa A, Matsuura K, Kishida D, Hidekazu T. Mediterranean fever gene mutations in patients with central nervous inflammation diagnosed with possible neuro-sweet disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Taniguchi M, Matsuura K, Nakamura R, Kojima A, Konishi M, Akizawa T. MMP-7 cleaves amyloid β fragment peptides and copper ion inhibits the degradation. Biometals 2017; 30:797-807. [DOI: 10.1007/s10534-017-0048-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 08/28/2017] [Indexed: 12/14/2022]
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Satoh R, Hagihara K, Matsuura K, Manse Y, Kita A, Kunoh T, Masuko T, Moriyama M, Moriyama H, Tanabe G, Muraoka O, Sugiura R. Identification of ACA-28, a 1′-acetoxychavicol acetate analogue compound, as a novel modulator of ERK MAPK signaling, which preferentially kills human melanoma cells. Genes Cells 2017; 22:608-618. [DOI: 10.1111/gtc.12499] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 04/02/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Kazuki Matsuura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yoshiaki Manse
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Tatsuki Kunoh
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Takashi Masuko
- Cell Biology Laboratory, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Mariko Moriyama
- Pharmaceutical Research and Technology Institute; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Hiroyuki Moriyama
- Pharmaceutical Research and Technology Institute; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Genzoh Tanabe
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Osamu Muraoka
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
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36
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Yokota T, Ogawa T, Takahashi S, Okami K, Fujii T, Tanaka K, Iwae S, Ota I, Ueda T, Monden N, Matsuura K, Kojima H, Ueda S, Sasaki K, Fujimoto Y, Hasegawa Y, Beppu T, Nishimori H, Hirano S, Naka Y, Matsushima Y, Fujii M, Tahara M. Efficacy and safety of rebamipide liquid for chemoradiotherapy-induced oral mucositis in patients with head and neck cancer: a multicenter, randomized, double-blind, placebo-controlled, parallel-group phase II study. BMC Cancer 2017; 17:314. [PMID: 28476132 PMCID: PMC5420134 DOI: 10.1186/s12885-017-3295-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 12/10/2016] [Accepted: 04/24/2017] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Recent preclinical and phase I studies have reported that rebamipide decreased the severity of chemoradiotherapy-induced oral mucositis in patients with oral cancer. This placebo-controlled randomized phase II study assessed the clinical benefit of rebamipide in reducing the incidence of severe chemoradiotherapy-induced oral mucositis in patients with head and neck cancer (HNC). METHODS Patients aged 20-75 years with HNC who were scheduled to receive chemoradiotherapy were enrolled. Patients were randomized to receive rebamipide 2% liquid, rebamipide 4% liquid, or placebo. The primary endpoint was the incidence of grade ≥ 3 oral mucositis determined by clinical examination and assessed by central review according to the Common Terminology Criteria of Adverse Events version 3.0. Secondary endpoints were the time to onset of grade ≥ 3 oral mucositis and the incidence of functional impairment (grade ≥ 3) based on the evaluation by the Oral Mucositis Evaluation Committee. RESULTS From April 2014 to August 2015, 97 patients with HNC were enrolled, of whom 94 received treatment. The incidence of grade ≥ 3 oral mucositis was 29% and 25% in the rebamipide 2% and 4% groups, respectively, compared with 39% in the placebo group. The proportion of patients who did not develop grade ≥ 3 oral mucositis by day 50 of treatment was 57.9% in the placebo group, whereas the proportion was 68.0% in the rebamipide 2% group and 71.3% in the rebamipide 4% group. The incidences of adverse events potentially related to the study drug were 16%, 26%, and 13% in the placebo, rebamipide 2%, and rebamipide 4% groups, respectively. There was no significant difference in treatment compliance among the groups. CONCLUSIONS The present phase II study suggests that mouth washing with rebamipide may be effective and safe for patients with HNC receiving chemoradiotherapy, and 4% liquid is the optimal dose of rebamipide. TRIAL REGISTRATION ClinicalTrials.gov under the identifier NCT02085460 (the date of trial registration: March 11, 2014).
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Affiliation(s)
- T Yokota
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-cho, Shizuoka, 411-8777, Japan.
| | - T Ogawa
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan
| | - S Takahashi
- Department of Medical Oncology, The Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - K Okami
- Department of Otolaryngology, Center of Head and Neck Surgery, Tokai University, 143 Shimokasuya, Isehara, Japan
| | - T Fujii
- Department of Otolaryngology, Head and Neck Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, 537-8511, Japan
| | - K Tanaka
- Department of Medical Oncology, Kindai University Faculty of Medicine, Sayama, Osaka, 589-0014, Japan
| | - S Iwae
- Department of Head and Neck Cancer, Hyogo Cancer Center, Akashi, 673-8558, Japan
| | - I Ota
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Kashiharashi, 634-8522, Japan
| | - T Ueda
- Department of Otorhinolaryngology-Head and Neck Surgery, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - N Monden
- Department of Head and Neck Surgery, Shikoku Cancer Center, Matsuyama, 791-0280, Japan
| | - K Matsuura
- Department of Head and Neck Surgery, Miyagi Cancer Center, 47-1 Medeshimashiote, Natori, 981-1293, Japan
| | - H Kojima
- Department of Otorhinolaryngology, Jikei University School of Medicine, 3-19 Nishi-Shinbashi, Minato-ku, Tokyo, 105-0003, Japan
| | - S Ueda
- Medical Oncology, Nara Hospital, Kindai University School of Medicine, 1248-1 Otoda-cho, Ikoma, Nara, 630-0293, Japan
| | - K Sasaki
- Head and Neck, Chiba Cancer Center, 666-2 Nitona-cho, Chuo-ku, Chiba, 260-0801, Japan
| | - Y Fujimoto
- Department of Otorhinolaryngology, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Shouwa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Y Hasegawa
- Department of Head and Neck Surgery, Aichi Cancer Center Hospital and Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681, Japan
| | - T Beppu
- Division of Head and Neck Surgery, Saitama Cancer Center, 780 Komuro, Inamachi, Kitaadachi-gun, Saitama, Japan
| | - H Nishimori
- Department of Hematology and Oncology, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, Japan
| | - S Hirano
- Department of Otolaryngology-Head and Neck Surgery, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Y Naka
- , Headquarters of New Product Evaluation and Development, Otsuka Pharmaceutical Co., Ltd., Shinagawa Grand Central Tower, 2-16-4 Konan, Minato-ku, Tokyo, 108-8242, Japan
| | - Y Matsushima
- , Headquarters of New Product Evaluation and Development, Otsuka Pharmaceutical Co., Ltd., Shinagawa Grand Central Tower, 2-16-4 Konan, Minato-ku, Tokyo, 108-8242, Japan
| | - M Fujii
- Department of Otolaryngology, Eiju General Hospital, 2-23-16 Higashiueno, Taito-ku, Tokyo, 110-8645, Japan
| | - M Tahara
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
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Sun JP, Ye GZ, Shahi P, Yan JQ, Matsuura K, Kontani H, Zhang GM, Zhou Q, Sales BC, Shibauchi T, Uwatoko Y, Singh DJ, Cheng JG. High-T_{c} Superconductivity in FeSe at High Pressure: Dominant Hole Carriers and Enhanced Spin Fluctuations. Phys Rev Lett 2017; 118:147004. [PMID: 28430492 DOI: 10.1103/physrevlett.118.147004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Indexed: 06/07/2023]
Abstract
The importance of electron-hole interband interactions is widely acknowledged for iron-pnictide superconductors with high transition temperatures (T_{c}). However, the absence of hole pockets near the Fermi level of the iron-selenide (FeSe) derived high-T_{c} superconductors raises a fundamental question of whether iron pnictides and chalcogenides have different pairing mechanisms. Here, we study the properties of electronic structure in the high-T_{c} phase induced by pressure in bulk FeSe from magnetotransport measurements and first-principles calculations. With increasing pressure, the low-T_{c} superconducting phase transforms into the high-T_{c} phase, where we find the normal-state Hall resistivity changes sign from negative to positive, demonstrating dominant hole carriers in contrast to other FeSe-derived high-T_{c} systems. Moreover, the Hall coefficient is enlarged and the magnetoresistance exhibits anomalous scaling behaviors, evidencing strongly enhanced interband spin fluctuations in the high-T_{c} phase. These results in FeSe highlight similarities with high-T_{c} phases of iron pnictides, constituting a step toward a unified understanding of iron-based superconductivity.
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Affiliation(s)
- J P Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - G Z Ye
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Science and Astronomy, Yunnan University, Kunming 650091, China
| | - P Shahi
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - J-Q Yan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - K Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - H Kontani
- Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
| | - G M Zhang
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Q Zhou
- School of Physical Science and Astronomy, Yunnan University, Kunming 650091, China
| | - B C Sales
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Uwatoko
- The Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - D J Singh
- Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211-7010, USA
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Matsuura K, Hatta S, Terasaka Y, Inoue Y. Extensive bilateral corneal edema 6 weeks after cataract surgery: Keratopathy due to Asclepias physocarpa: a case report. BMC Ophthalmol 2017; 17:5. [PMID: 28100180 PMCID: PMC5241988 DOI: 10.1186/s12886-017-0400-z] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 01/10/2017] [Indexed: 11/10/2022] Open
Abstract
Background Surgeons may be unaware of the ability of plant toxins to cause corneal damage. Therefore, corneal damage following intraocular surgery due to plant toxins may be misdiagnosed as postoperative infection. Case presentation A 74-year-old man presented with hyperemia and reduced visual acuity in both eyes 6 weeks after uneventful cataract surgery. We observed extensive hyperemia and corneal stromal edema with Descemet’s folds in both eyes. After obtaining a detailed patient history, we diagnosed plant toxin-induced corneal edema due to Asclepias physocarpa, which can induce corneal edema by inhibiting the Na+/K+ ATPase activity of the corneal endothelium. Antimicrobial and steroid eye drops and an oral steroid were prescribed accordingly. Symptons began to improve on day 3 and had almost completely resolved by day 6. At 1 month, the patient had fully recovered without any sequelae. Conclusion The correct diagnosis was possible in the present case as symptoms were bilateral and the patient was able to report his potential exposure to plant toxins. However, if the symptoms had been unilateral and the patient had been unaware of these toxins, he may have undergone unnecessary surgical interventions to treat non-existent postoperative endophthalmitis.
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Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori, 682-0863, Japan.
| | - Shiro Hatta
- Maejima ganka, 226, Motomachi, Tottori-city, Tottori, 680-0037, Japan
| | - Yuki Terasaka
- Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori, 682-0863, Japan
| | - Yoshitsugu Inoue
- Tottori University, 36-1, Nishi-cho, Yonago-city, Tottori, 683-504, Japan
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Yoshida S, Suzuki A, Ohmori T, Niwa T, Okada H, Suzuki K, Kobayashi R, Doi T, Kitaichi K, Matsuura K, Murakami N, Ogura S, Itoh Y. A simplified chart for determining the initial loading dose of teicoplanin in critically ill patients. Pharmazie 2017; 72:53-57. [PMID: 29441898 DOI: 10.1691/ph.2017.6811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AIM OF THE STUDY A simplified chart to determine the initial loading dose of teicoplanin (TEIC chart) for achieving the target trough concentration was developed. The aim of the present study was to evaluate the usefulness of this chart in critically ill patients. PATIENTS AND METHODS The initial loading dose and maintenance dose to achieve a target trough concentration ≥10 μg/mL on day 4 was determined using the teicoplanin TDM software and presented in a TEIC chart. The dosage of teicoplanin, including the loading dose for the first 2 days and the maintenance dose thereafter, was selected from the chart (chart method, N = 41) or calculated using TDM software (software method, N = 39). RESULTS The performance rate of initial loading of teicoplanin increased from 83.0% to 100% after the TEIC chart was introduced (P = 0.016). The TEIC chart significantly reduced the time required for determining the initial loading dose compared with the use of software (1.9±0.6 min vs. 29.7±13.8 min, P < 0.001). No significant differences were observed in the rates of achieving a target level ≥10 μg/mL (P = 0.766). CONCLUSION The TEIC chart enables a simple, rapid, and reliable determination of teicoplanin dosage.
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Matsuura K. Direct numerical simulation of a straight vortex tube in a laminar boundary-layer flow. Int J CMEM 2016. [DOI: 10.2495/cmem-v4-n4-474-483] [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: 11/09/2022] Open
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Sakashita T, Homma A, Onimaru R, Matsuura K, Shinomiya H, Hayashi R, Shiga K, Tachibana H, Nakamura K, Mizusawa J, Fujii M. A multi-institutional dose-finding and efficacy confirmation trial of superselective intra-arterial infusion of cisplatin and concomitant radiotherapy for patients with locally advanced maxillary sinus cancer (JCOG1212, RADPLAT-MSC): Results of dose-finding phase. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw376.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yamashita Y, Torashima M, Takahashi M, Mizutani H, Miyazaki K, Matsuura K, Okamura H. Contrast-Enhanced Dynamic MR Imaging of Postmolar Gestational Trophoblastic Disease. Acta Radiol 2016. [DOI: 10.1177/028418519503600216] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Conventional spin-echo (SE) and contrast-enhanced dynamic MR imaging were performed on a 1.5 T superconductive unit for evaluation of myometrial lesions in postmolar gestational trophoblastic disease (GTD) in 10 women. MR imaging was done at the time of the initial examination (n=10), during (n=6), and after repeated courses of chemotherapy (n=10). The T2-weighted SE image revealed an enlarged uterus (n=7), disappearance of zonal anatomy (n=6), and heterogeneous signal intensities (n=8) with prominent flow voids (n=7). However, these abnormalities remained after repeated courses of chemotherapy, when the S-β-HCG level returned to the normal range. Myometrial lesions characteristically had marked enhancement with areas of unenhancement on dynamic MR images in patients with highly elevated S-β-HCG. Areas of contrast enhancement correlated with changes in S-β-HCG level. The enhancement was reduced with decrease in S-β-HCG level after repeated courses of chemotherapy. Six of 8 masses seen on T2-weighted images proved to be active trophoblastic lesions and 2 masses proved to be hematoma or necrosis. In 2 patients, abnormal myometrial lesions were detected only on contrast-enhanced dynamic MR imaging. These preliminary data indicate that contrast-enhanced dynamic MR imaging more clearly demonstrates myometrial involvement of postmolar GTD than conventional SE imaging.
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Abstract
Apoptosis is a cellular suicide program that plays a critical role in development and human diseases, including cancer. Cancer cells evade apoptosis, thereby enabling excessive proliferation, survival under hypoxic conditions, and acquired resistance to therapeutic agents. Among various mechanisms that contribute to the evasion of apoptosis in cancer, metabolism is emerging as one of the key factors. Cellular metabolites can regulate functions of pro- and antiapoptotic proteins. In turn, p53, a regulator of apoptosis, also controls metabolism by limiting glycolysis and facilitating mitochondrial respiration. Consequently, with dysregulated metabolism and p53 inactivation, cancer cells are well-equipped to disable the apoptotic machinery. In this article, we review how cellular apoptosis is regulated and how metabolism can influence the signaling pathways leading to apoptosis, especially focusing on how glucose and lipid metabolism are altered in cancer cells and how these alterations can impact the apoptotic pathways.
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Affiliation(s)
- K Matsuura
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, United States
| | - K Canfield
- Department of Molecular & Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States
| | - W Feng
- Norris Cotton Cancer Center, Lebanon, NH, United States
| | - M Kurokawa
- Department of Molecular & Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States; Norris Cotton Cancer Center, Lebanon, NH, United States.
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Sun JP, Matsuura K, Ye GZ, Mizukami Y, Shimozawa M, Matsubayashi K, Yamashita M, Watashige T, Kasahara S, Matsuda Y, Yan JQ, Sales BC, Uwatoko Y, Cheng JG, Shibauchi T. Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe. Nat Commun 2016; 7:12146. [PMID: 27431724 PMCID: PMC4960320 DOI: 10.1038/ncomms12146] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 06/05/2016] [Indexed: 11/24/2022] Open
Abstract
The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (Tc) superconductors. Unlike other iron-based superconductors, FeSe exhibits nematic ordering without magnetism whose relationship with its superconductivity remains unclear. Moreover, a pressure-induced fourfold increase of Tc has been reported, which poses a profound mystery. Here we report high-pressure magnetotransport measurements in FeSe up to ∼15 GPa, which uncover the dome shape of magnetic phase superseding the nematic order. Above ∼6 GPa the sudden enhancement of superconductivity (Tc≤38.3 K) accompanies a suppression of magnetic order, demonstrating their competing nature with very similar energy scales. Above the magnetic dome, we find anomalous transport properties suggesting a possible pseudogap formation, whereas linear-in-temperature resistivity is observed in the normal states of the high-Tc phase above 6 GPa. The obtained phase diagram highlights unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.
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Affiliation(s)
- J. P. Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - K. Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - G. Z. Ye
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Science and Technology, Yunnan University, Kunming 650091, China
| | - Y. Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M. Shimozawa
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K. Matsubayashi
- Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - M. Yamashita
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - T. Watashige
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - S. Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Y. Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - J. -Q. Yan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - B. C. Sales
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Y. Uwatoko
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - J. -G. Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - T. Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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Kadoya T, Masumoto N, Shigematsu H, Emi A, Kajitani K, Kobayashi Y, Funakoshi M, Kawabuchi Y, Ohara M, Matsuura K, Noma M, Sasada T, Okada M. Abstract P1-15-03: Prevention of letrozole–induced bone loss using risedronate in postmenopausal women with hormone receptor positive breast cancer: A multicenter randomized clinical trial. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-15-03] [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
Prevention of letrozole–induced bone loss using oral risedronate has not been proved in the Japanese women. The aim of this study was to assess the effect of risedronate 17.5mg/week on bone mineral density (BMD) in postmenopausal, early breast cancer patients scheduled to receive adjuvant letrozole.
Patients and Methods
Postmenopausal women with hormone receptor–positive early breast cancer were assigned to one of two strata according to their baseline BMD T-score as being at low and high risk of osteoporosis. Patients with low risk (-2.5 ≤ T score) were randomly assigned to letrozole and risedronate (L+R) or to letrozole alone (L). Patients with high risk (-2.5 > T score) received letrozole and risedronate (L+R). Letrozole was given at a dosage of 2.5 mg/day while oral risedronate was given at 17.5mg/week. The primary end point was the change in lumbar spine (LS) BMD at 12 months. The secondary end points included change in total hip (HP) BMD and bone turnover markers.
Results
In the low risk group (N=103), treatment with L+R resulted in a significant increase in BMD at LS and at HP compared to treatment with L only at 12 months (1.8% vs -2.2%, P < 0.001, and -0.3% vs -2.9%, P = 0.001, respectively). In the L+R group, significant decreases in bone turnover makers, NTX and PINP, were recognized compared with L only at 12months (-11.1% vs. 27.5%, P<0.001, -42.3% vs. 15.2%, P<0.001, respectively). In the high risk group (N=28), treatment with L+R resulted in a significant increase in BMD at LS and prevention of decrease in BMD at HP (3.6%; 95%CI, 1.8% to 5.3%, p=0.003, 0.3%; 95%CI, -1.3% to 1.8%, p=0.47, respectively).
Estimated Percentage Change From Baseline to 6 and 12 Months in Lumbar Spine and Total Hip BMD From Baseline to 6 MonthsFrom Baseline to 12 MonthsBMD areaRisk GroupTreatmentChange in BMD (%), 95% CIPChange in BMD (%), 95% CIPLumbar spineLow riskL+R1.7 (-1.3 to 4.7)<0.0011.8 (-2.1 to 5.7)<0.001 L-1.6 (-4.3 to 1.1) -2.2 (-5.7 to 1.3) High riskL+R1.8 (0.4 to 3.2)0.043.6 (1.8 to 5.3)0.003Total hipLow riskL+R-0.2 (-2.7 to 2.3)0.001-0.3 (-3.2 to 2.6)0.001 L-2.2 (-5.4 to 1.0) -2.9 (-7.2 to 1.4) High riskL+R0.1 (-1.3 to 1.6)0.610.3 (-1.3 to 1.8)0.47BMD: bone mineral density, L: Letrozole, R: risedronate
Four patients (14.3%) improved from osteoporotic region to the osteopenic region with L+R treatment. Letrozole and risedronate were well tolerable and there was no serious adeverse event including osteonecrosis of jaw.
Conclusions
At 12 months, 17.5mg/week risedronate therapy prevented bone loss in postmenopausal women with breast cancer who were receiving adjuvant letrozole, of which results were compatible with previous findings of western populations.
Citation Format: Kadoya T, Masumoto N, Shigematsu H, Emi A, Kajitani K, Kobayashi Y, Funakoshi M, Kawabuchi Y, Ohara M, Matsuura K, Noma M, Sasada T, Okada M. Prevention of letrozole–induced bone loss using risedronate in postmenopausal women with hormone receptor positive breast cancer: A multicenter randomized clinical trial. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-15-03.
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Affiliation(s)
- T Kadoya
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - N Masumoto
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - H Shigematsu
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - A Emi
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - K Kajitani
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - Y Kobayashi
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - M Funakoshi
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - Y Kawabuchi
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - M Ohara
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - K Matsuura
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - M Noma
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - T Sasada
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
| | - M Okada
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Hiroshima City Asa Citizens Hospital, Hiroshima, Japan; Hiroshima General Hospital, Hatsukaichi, Japan; Hiroshima Prefectural Hospital, Hiroshima, Japan; Onomichi General Hospital, Onomichi, Japan
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Imai T, Sato I, Matsumoto K, Asada Y, Kato K, Sogai S, Watanabe K, Sadayasu R, Saijo S, Matsuura K. Human papilloma virus detection in oropharyngeal cancer with gargle samples. B-ENT 2016; 12:263-269. [PMID: 29709129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
UNLABELLED Human papilloma virus detection in oropharyngeal cancer with gargle samples. OBJECTIVE human papilloma virus (HPV) is a major risk factor for oropharyngeal squamous cell carcinoma (OPSCC) and knowledge of a patient's HPV status is clinically important in terms of treatment and prognosis. The practicality of using oral gargle samples to reliably detect HPV in patients with OPSCC remains unclear. Therefore, we evaluated the feasibility of HPV detection in gargle samples of OPSCC patients using an HPV-dedicated nucleic acid amplification test (cobas 4800 HPV Test; Roche Diagnostics K.K.). METHODOLOGY 15 patients with histologically proven OPSCC were evaluated from May 2014 to March 2015. Swab sam- ples served as positive controls and were tested using both the Hybrid Capture II HPV Test (HC-II; Digene Corporation) and the cobas 4800 HPV Test. Oral gargle samples were tested using the cobas 4800 HPV Test. Five of the 15 patients were confirmed to be HPV-positive by a combination of p16 immunohistochemistry, HPV-DNA in situ hybridization and nucleic acid amplification. RESULTS the sensitivity and specificity of the gargling method were 60% and 100%, respectively. No false-positives were obtained. Detection of HPV in two very small tumours rising from the base of the tongue was difficult and these cases were overlooked as HPV-negative. CONCLUSIONS use of the gargling method to determine HPV positivity in OPSCC patients appears feasible, except in patients with very small tumours. Real-time polymerase chain reaction using gargle samples may have greater clinical efficacy than the swabbing method.
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Affiliation(s)
- Kazuki Matsuura
- Department of Ophthalmology, Nojima Hospital, Kurayoshi, Tottori, Japan
| | - Ryu Uotani
- Department of Ophthalmology, Tottori University, Yonago, Tottori, Japan
| | - Shin-Ichi Sasaki
- Department of Ophthalmology, Tottori University, Yonago, Tottori, Japan
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Yamagata Z, Shinohara R, Akiyama Y, Matsuura K, Ojima T, Tamakoshi K, Ichikawa K, Yamazaki Y. Inequalities in health among Japanese children: The Healthy Parents and Children 21 Plan in Japan. Eur J Public Health 2015. [DOI: 10.1093/eurpub/ckv176.003] [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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Matsuura K. Long-term effects of intracameral moxifloxacin. Graefes Arch Clin Exp Ophthalmol 2015; 253:2335-6. [PMID: 26047536 DOI: 10.1007/s00417-015-3074-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/17/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022] Open
Affiliation(s)
- Kazuki Matsuura
- Nojima Hospital, 2714-1, Sesaki-machi, Kurayoshi-city, Tottori, 682-0863, Japan.
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