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Stroud JT, Delory BM, Barnes EM, Chase JM, De Meester L, Dieskau J, Grainger TN, Halliday FW, Kardol P, Knight TM, Ladouceur E, Little CJ, Roscher C, Sarneel JM, Temperton VM, van Steijn TLH, Werner CM, Wood CW, Fukami T. Priority effects transcend scales and disciplines in biology. Trends Ecol Evol 2024:S0169-5347(24)00041-7. [PMID: 38508922 DOI: 10.1016/j.tree.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 03/22/2024]
Abstract
Although primarily studied through the lens of community ecology, phenomena consistent with priority effects appear to be widespread across many different scenarios spanning a broad range of spatial, temporal, and biological scales. However, communication between these research fields is inconsistent and has resulted in a fragmented co-citation landscape, likely due to the diversity of terms used to refer to priority effects across these fields. We review these related terms, and the biological contexts in which they are used, to facilitate greater cross-disciplinary cohesion in research on priority effects. In breaking down these semantic barriers, we aim to provide a framework to better understand the conditions and mechanisms of priority effects, and their consequences across spatial and temporal scales.
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Affiliation(s)
- J T Stroud
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - B M Delory
- Institute of Ecology, Leuphana University Lüneburg, Lüneburg, Germany; Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, The Netherlands.
| | - E M Barnes
- Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, NY 14623, USA
| | - J M Chase
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - L De Meester
- Leibniz Institut für Gewässerökologie und Binnenfischerei (IGB), Müggelseedamm 310, 12587 Berlin, Germany; Institute of Biology, Freie Universität Berlin, Königin-Luise-Strasse 1-3, 14195 Berlin, Germany; Laboratory of Aquatic Ecology, Evolution, and Conservation, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
| | - J Dieskau
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Department of Geobotany and Botanical Garden, Martin-Luther University, Germany
| | - T N Grainger
- Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - F W Halliday
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA
| | - P Kardol
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
| | - T M Knight
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Department of Community Ecology, Helmholtz Centre for Environmental Research (UFZ), Halle (Saale), Germany; Institute of Biology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - E Ladouceur
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - C J Little
- School of Environmental Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - C Roscher
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Department of Physiological Diversity, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany
| | - J M Sarneel
- Department of Ecology and Environmental Science, Umea University, 901 87 Umea, Sweden
| | - V M Temperton
- Institute of Ecology, Leuphana University Lüneburg, Lüneburg, Germany
| | - T L H van Steijn
- Department of Ecology and Environmental Science, Umea University, 901 87 Umea, Sweden
| | - C M Werner
- Department of Environmental Science, Policy, and Sustainability, Southern Oregon University, Ashland, OR 97520, USA
| | - C W Wood
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - T Fukami
- Departments of Biology and Earth System Science, Stanford University, Stanford, CA 94305, USA.
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Nakasu S, Nakasu Y, Tsuji A, Fukami T, Nitta N, Kawano H, Notsu A, Nozaki K. Incidental diffuse low-grade gliomas: A systematic review and meta-analysis of treatment results with correction of lead-time and length-time biases. Neurooncol Pract 2023; 10:113-125. [PMID: 36970177 PMCID: PMC10037942 DOI: 10.1093/nop/npac073] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background Better overall survival (OS) reported in patients with incidental diffuse low-grade glioma (iLGG) in comparison to symptomatic LGG (sLGG) may be overestimated by lead-time and length-time. Methods We performed a systematic review and meta-analysis of studies on adult hemispheric iLGGs according to the PRISMA statement to adjust for biases in their outcomes. Survival data were extracted from Kaplan-Meier curves. Lead-time was estimated by 2 methods: Pooled data of time to become symptomatic (LTs) and time calculated from the tumor growth model (LTg). Results We selected articles from PubMed, Ovid Medline, and Scopus since 2000. Five compared OS between patients with iLGG (n = 287) and sLGG (n = 3117). The pooled hazard ratio (pHR) for OS of iLGG to sLGG was 0.40 (95% confidence interval [CI] {0.27-0.61}). The estimated mean LTs and LTg were 3.76 years (n = 50) and 4.16-6.12 years, respectively. The corrected pHRs were 0.64 (95% CI [0.51-0.81]) by LTs and 0.70 (95% CI [0.56-0.88]) by LTg. In patients with total removal, the advantage of OS in iLGG was lost after the correction of lead-time. Patients with iLGG were more likely to be female pooled odds ratio (pOR) 1.60 (95% CI [1.25-2.04]) and have oligodendrogliomas (pOR 1.59 [95% CI {1.05-2.39}]). Correction of the length-time bias, which increased the pHR by 0.01 to 0.03, preserved the statistically significant difference in OS. Conclusions The reported outcome in iLGG was biased by lead-time and length-time. Although iLGG had a longer OS after correction of biases, the difference was less than previously reported.
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Affiliation(s)
- Satoshi Nakasu
- Division of Neurosurgery, Omi Medical Center, Kusatsu, Japan
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
| | - Yoko Nakasu
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
- Division of Neurosurgery, Shizuoka Cancer Center, Nagaizumi, Japan
| | - Atsushi Tsuji
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
| | - Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
| | - Hiroto Kawano
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
| | - Akifumi Notsu
- Clinical Research Center, Shizuoka Cancer Center, Nagaizumi, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Japan
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Nitta N, Moritani S, Fukami T, Nozaki K. Characteristics of cranial vault lymphoma from a systematic review of the literature. Surg Neurol Int 2022; 13:231. [PMID: 35855149 PMCID: PMC9282819 DOI: 10.25259/sni_28_2022] [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: 01/07/2022] [Accepted: 05/06/2022] [Indexed: 11/18/2022] Open
Abstract
Background: Cranial vault lymphomas are rare and their clinical features are often similar to those of cranial vault meningiomas. The objective of this review was to identify the features helpful for differentiating lymphomas of the cranial vault, from meningiomas which were the most common diagnosis before the definitive pathological diagnosis. Methods: The inclusion criterion was a histologically proven malignant lymphoma initially appearing in the calvarium. We conducted a literature search of the electronic PubMed and Ichushi-Web databases up to June 1, 2020. Cranial vault lymphoma that was diagnosed after an original diagnosis of lymphoma in a nodal or soft-tissue site was excluded from the study. Descriptive analyses were used to present the patient characteristics. Results: A total of 111 patients were found in 98 eligible articles. Almost all studies were case reports. The most common symptom was a growing subcutaneous scalp mass (84%) present for a mean duration of 5.9 months before the patient presented for treatment in analyzable cases; this fast growth may distinguish lymphomas from meningiomas. The tumor vascularization was often inconspicuous or poor, unlike well-vascularized meningiomas. A disproportionately small amount of skull destruction compared with the soft-tissue mass was observed in two-thirds of the analyzable cases. Conclusion: This qualitative systematic review identified several features of cranial vault lymphomas that may be useful in differentiating them from meningiomas, including a rapidly growing subcutaneous scalp mass, poor vascularization, and limited skull destruction relative to the size of the soft-tissue mass.
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Affiliation(s)
- Naoki Nitta
- Departments of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Suzuko Moritani
- Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Tadateru Fukami
- Departments of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Kazuhiko Nozaki
- Departments of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
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Isono T, Hira D, Morikochi A, Fukami T, Ueshima S, Nozaki K, Terada T, Morita S. Urine volume to hydration volume ratio is associated with pharmacokinetics of high-dose methotrexate in patients with primary central nervous system lymphoma. Pharmacol Res Perspect 2021; 9:e00883. [PMID: 34664791 PMCID: PMC8525095 DOI: 10.1002/prp2.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 09/30/2021] [Indexed: 11/24/2022] Open
Abstract
High-dose methotrexate (HD-MTX)-based chemotherapy is the first-line treatment for primary central nervous system lymphoma (PCNSL), but is associated with severe adverse effects, including myelosuppression and renal impairment. MTX is primarily excreted by the kidneys. Renal function calculated using serum creatinine (Scr) derived from muscle may be overestimated in elderly PCNSL patients. Therefore, we aimed to construct a population pharmacokinetic model in PCNSL patients and explore the factors associated with MTX clearance. Sixteen PCNSL patients (median age, 66 years) treated with HD-MTX were included, and serum MTX concentrations were measured at 193 points in 49 courses. A population pharmacokinetic analysis was performed using NONMEM. A Monte Carlo simulation was conducted, in which serum MTX concentrations were stratified into three groups of creatine clearance (Ccr) (50, 75, and 100 ml/min) with three groups of the urine volume to hydration volume (UV/HV) ratio (<1, 1-2, and >2). The final model was constructed as follows: MTX clearance = 4.90·(Ccr/94.5)0.456 ·(UV/HV)0.458 . In the Monte Carlo simulation, serum MTX concentrations were below the standard values (10, 1, and 0.1 µM at 24, 48, and 72 h, respectively, after the start of the MTX administration) in most patients with UV/HV >2, even with Ccr of 50 ml/min. Conversely, half of the patients with UV/HV <1 and Ccr of 50 ml/min failed to achieve the standard values. The present results demonstrated that the UV/HV ratio was useful for describing the pharmacokinetics of MTX in PCNSL patients.
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Affiliation(s)
- Tetsuichiro Isono
- Department of PharmacyShiga University of Medical Science HospitalOtsuShigaJapan
| | - Daiki Hira
- Department of PharmacyShiga University of Medical Science HospitalOtsuShigaJapan
- College of Pharmaceutical SciencesRitsumeikan UniversityKusatsuShigaJapan
- Present address:
Department of Clinical Pharmacology and TherapeuticsKyoto University HospitalKyotoJapan
| | - Aya Morikochi
- Department of PharmacyShiga University of Medical Science HospitalOtsuShigaJapan
| | - Tadateru Fukami
- Department of NeurosurgeryShiga University of Medical ScienceOtsuShigaJapan
| | - Satoshi Ueshima
- College of Pharmaceutical SciencesRitsumeikan UniversityKusatsuShigaJapan
| | - Kazuhiko Nozaki
- Department of NeurosurgeryShiga University of Medical ScienceOtsuShigaJapan
| | - Tomohiro Terada
- Department of PharmacyShiga University of Medical Science HospitalOtsuShigaJapan
- Present address:
Department of Clinical Pharmacology and TherapeuticsKyoto University HospitalKyotoJapan
| | - Shin‐ya Morita
- Department of PharmacyShiga University of Medical Science HospitalOtsuShigaJapan
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5
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Kanamori M, Takami H, Suzuki T, Tominaga T, Kurihara J, Tanaka S, Hatazaki S, Nagane M, Matsuda M, Yoshino A, Natsumeda M, Yamaoka M, Kagawa N, Akiyama Y, Fukai J, Negoto T, Shibahara I, Tanaka K, Inoue A, Mase M, Tomita T, Kuga D, Kijima N, Fukami T, Nakahara Y, Natsume A, Yoshimoto K, Keino D, Tokuyama T, Asano K, Ujifuku K, Abe H, Nakada M, Matsuda KI, Arakawa Y, Ikeda N, Narita Y, Shinojima N, Kambe A, Nonaka M, Izumoto S, Kawanishi Y, Kanaya K, Nomura S, Nakajima K, Yamamoto S, Terashima K, Ichimura K, Nishikawa R. Necessity for craniospinal irradiation of germinoma with positive cytology without spinal lesion on MR imaging-A controversy. Neurooncol Adv 2021; 3:vdab086. [PMID: 34355172 PMCID: PMC8331051 DOI: 10.1093/noajnl/vdab086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Cerebrospinal fluid (CSF) cytology and spinal MR imaging are routinely performed for staging before treatment of intracranial germinoma. However, the interpretation of the results of CSF cytology poses 2 unresolved clinical questions: (1) Does positive CSF cytology correlate with the presence of spinal lesion before treatment? and (2) Is craniospinal irradiation (CSI) necessary for patients with positive CSF cytology in the absence of spinal lesion? Methods Multicenter retrospective analyses were performed based on a questionnaire on clinical features, spinal MR imaging finding, results of CSF cytology, treatments, and outcomes which was sent to 86 neurosurgical and 35 pediatrics departments in Japan. Pretreatment frequencies of spinal lesion on MR imaging were compared between the patients with positive and negative cytology. Progression-free survival (PFS) rates were compared between patients with positive CSF cytology without spinal lesion on MR imaging treated with CSI and with whole brain or whole ventricular irradiation (non-CSI). Results A total of 92 germinoma patients from 45 institutes were evaluated by both CSF cytology and spinal MR images, but 26 patients were excluded because of tumor markers, the timing of CSF sampling or incomplete estimation of spinal lesion. Of the remaining 66 germinoma patients, spinal lesions were equally identified in patients with negative CSF cytology and positive cytology (4.9% and 8.0%, respectively). Eleven patients treated with non-CSI had excellent PFS comparable to 11 patients treated with CSI. Conclusion CSI is unnecessary for germinoma patients with positive CSF cytology without spinal lesions on MR imaging.
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Affiliation(s)
- Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School Medicine, Sendai, Miyagi, Japan
| | - Hirokazu Takami
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Tomonari Suzuki
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School Medicine, Sendai, Miyagi, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Saitama, Japan
| | - Shota Tanaka
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Seiji Hatazaki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - Masahide Matsuda
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Atsuo Yoshino
- Department of Neurological Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Manabu Natsumeda
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Niigata, Japan
| | - Masayoshi Yamaoka
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yukinori Akiyama
- Department of Neurosurgery, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Junya Fukai
- Department of Neurological Surgery, Wakayama Medical University School of Medicine, Wakayama, Wakayama, Japan
| | - Tetsuya Negoto
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Ichiyo Shibahara
- Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Kazuhiro Tanaka
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Touon, Ehime, Japan
| | - Mitsuhiro Mase
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Takahiro Tomita
- Department of neurosurgery, University of Toyama, Toyama, Toyama, Japan
| | - Daisuke Kuga
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Fukuoka, Japan
| | - Noriyuki Kijima
- Department of Neurosurgery, National Hospital Organization Osaka National Hospital, Osaka, Osaka, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Yukiko Nakahara
- Department of Neurosurgery, Faculty of Medicine, Saga University, Saga, Saga, Japan
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Aichi, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Kagoshima, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children`s Medical Center, Yokohama, Kanagawa, Japan
| | - Tsutomu Tokuyama
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kenichiro Asano
- Department of Neurosurgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Kenta Ujifuku
- Department of Neurosurgery, Nagasaki University School of Medicine, Nagasaki, Nagasaki, Japan
| | - Hiroshi Abe
- Department of Neurosurgery, Fukuoka University Faculty of Medicine, Fukuoka, Fukuoka, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Ken-Ichiro Matsuda
- Department of Neurosurgery, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
| | - Yoshiki Arakawa
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Naokado Ikeda
- Department of Neurosurgery and Neuroendovascular Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Yoshitaka Narita
- Departments of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Naoki Shinojima
- Department of Neurosurgery, Kumamoto University Hospital, Kumamoto, Kumamoto, Japan
| | - Atsushi Kambe
- Division of Neurosurgery, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Tottori, Japan
| | - Masahiko Nonaka
- Department of Neurosurgery, Kansai Medical University, Hirakata, Osaka, Japan
| | - Shuichi Izumoto
- Department of Neurosurgery, Kindai University Faculty of Medicine, Higashi-Osaka, Osaka, Japan
| | - Yu Kawanishi
- Department of Neurosurgery, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Kohei Kanaya
- Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Sadahiro Nomura
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
| | - Kohei Nakajima
- Department of Neurosurgery, Tokushima University School of Medicine, Tokushima, Tokushima, Japan
| | - Shohei Yamamoto
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
| | - Keita Terashima
- Division of Neuro-Oncology, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
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6
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Kanamori M, Takami H, Yamaguchi S, Sasayama T, Yoshimoto K, Tominaga T, Inoue A, Ikeda N, Kambe A, Kumabe T, Matsuda M, Tanaka S, Natsumeda M, Matsuda KI, Nonaka M, Kurihara J, Yamaoka M, Kagawa N, Shinojima N, Negoto T, Nakahara Y, Arakawa Y, Hatazaki S, Shimizu H, Yoshino A, Abe H, Akimoto J, Kawanishi Y, Suzuki T, Natsume A, Nagane M, Akiyama Y, Keino D, Fukami T, Tomita T, Kanaya K, Tokuyama T, Izumoto S, Nakada M, Kuga D, Yamamoto S, Anei R, Uzuka T, Fukai J, Kijima N, Terashima K, Ichimura K, Nishikawa R. So-called bifocal tumors with diabetes insipidus and negative tumor markers: are they all germinoma? Neuro Oncol 2021; 23:295-303. [PMID: 32818237 PMCID: PMC7906060 DOI: 10.1093/neuonc/noaa199] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The Delphi consensus statements on the management of germ cell tumors (GCTs) failed to reach agreements on the statement that the cases with (i) pineal and neurohypophyseal bifocal lesion, (ii) with diabetes insipidus, and (iii) with negative tumor markers can be diagnosed as germinoma without histological verification. To answer this, multicenter retrospective analysis was performed. METHODS A questionnaire on clinical findings, histological diagnosis, and details of surgical procedures was sent to 86 neurosurgical and 35 pediatrics departments in Japan. RESULTS Fifty-one institutes reported 132 cases that fulfilled the 3 criteria. Tissue sampling was performed in 91 cases from pineal (n = 44), neurohypophyseal (n = 32), both (n = 6), and distant (n = 9) lesions. Histological diagnosis was established in 89 cases: pure germinoma or germinoma with syncytiotrophoblastic giant cells in 82 (92.1%) cases, germinoma and mature teratoma in 2 cases, and granulomatous inflammation in 2 cases. Histological diagnosis was not established in 2 cases. Although no tumors other than GCTs were identified, 3 (3.4%) patients had non-germinomatous GCTs (NGGCTs). None of the patients developed permanent complications after endoscopic or stereotactic biopsy. Thirty-nine patients underwent simultaneous procedure for acute hydrocephalus without permanent complications, and hydrocephalus was controlled in 94.9% of them. CONCLUSION All patients who fulfilled the 3 criteria had GCTs or granulomatous inflammation, but not other types of tumors. However, no fewer than 3.4% of the patients had NGGCTs. Considering the safety and the effects of simultaneous procedures for acute hydrocephalus, biopsy was recommended in such patients.
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Affiliation(s)
- Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hirokazu Takami
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shigeru Yamaguchi
- Department of Neurosurgery, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Takashi Sasayama
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Naokado Ikeda
- Department of Neurosurgery and Neuroendovascular Surgery, Osaka Medical College, Osaka, Japan
| | - Atsushi Kambe
- Division of Neurosurgery, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Toshihiro Kumabe
- Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Masahide Matsuda
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shota Tanaka
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Manabu Natsumeda
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Ken-Ichiro Matsuda
- Department of Neurosurgery, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University, Osaka, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children’s Medical Center, Saitama, Japan
| | - Masayoshi Yamaoka
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Naoki Shinojima
- Department of Neurosurgery, Kumamoto University Hospital, Kumamoto, Japan
| | - Tetsuya Negoto
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan
| | - Yukiko Nakahara
- Department of Neurosurgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Yoshiki Arakawa
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Seiji Hatazaki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Hiroaki Shimizu
- Department of Neurosurgery, Akita University Graduate School of Medicine, Akita, Japan
| | - Atsuo Yoshino
- Department of Neurological Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Abe
- Department of Neurosurgery, Fukuoka University, Fukuoka, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, Tokyo, Japan
| | - Yu Kawanishi
- Department of Neurosurgery, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Tomonari Suzuki
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Yukinori Akiyama
- Department of Neurosurgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children`s Medical Center, Yokohama, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Takahiro Tomita
- Department of Neurosurgery, University of Toyama, Toyama, Japan
| | - Kohei Kanaya
- Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tsutomu Tokuyama
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Shuichi Izumoto
- Department of Neurosurgery, Kindai University Faculty of Medicine, Sayama, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Daisuke Kuga
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shohei Yamamoto
- Department of Pediatrics, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - Ryogo Anei
- Department of Neurosurgery, Asahikawa Medical University, Asahikawa, Japan
| | - Takeo Uzuka
- Department of Neurosurgery, Dokkyo Medical University, Tochigi, Japan
| | - Junya Fukai
- Department of Neurological Surgery, Wakayama Medical University School of Medicine Wakayama, Japan
| | - Noriyuki Kijima
- Department of Neurosurgery, Osaka National Hospital, Osaka, Japan
| | - Keita Terashima
- Division of Neuro-Oncology, National Center for Child Health and Development, Tokyo, Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan
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Nitta N, Fukami T, Sasao A, Nozaki K. ML-10 PRIMARY DIFFUSE LARGE B-CELL LYMPHOMA OF THE CRANIAL VAULT: A CASE REPORT. Neurooncol Adv 2019. [PMCID: PMC7213333 DOI: 10.1093/noajnl/vdz039.152] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Tumors other than meningiomas, cavernous malformations and metastatic tumors rarely originate in the cranial vault. We report a case of primary diffuse large B-cell lymphoma of the cranial vault. CASE DESCRIPTION A 58-year-old woman was referred to our hospital because of a right frontal subcutaneous mass that had rapidly increased in size. The patient had been well until approximately 2 months before this referral, when she had slight difficulty in opening the right eye. Thereafter she had headaches and a swelling of the forehead. She was seen in a neurosurgery clinic and referred to our hospital. She had no past history of serious illnesses, operations or hospitalizations. On examination, there was a fixed firm mass, 13 cm in size, in the right side of the forehead. The skin on the center of the mass was stretched and took on a reddish hue. Neurological examination was negative. Blood chemistry tests showed lactate dehydrogenase four times above normal and a slight increase in alkaline phosphatase, amylase and lipase. Beta-2-microglobulin was normal. Bone windows of computed tomography (CT) of the head showed hyperostosis and permeative lytic changes of the frontal bone. Postcontrast MRI showed a large enhanced subgaleal lesion extending through the bony calvarium with a large subdural component. Histological examination after a biopsy was characteristic for a diffuse large B-cell lymphoma. Postcontrast CT of the abdomen and FDG-PET showed metastatic lesions in the pancreas, kidneys and cervical lymph nodes. The patient has been treated by CHOP chemotherapy and has been well. CONCLUSIONS We present a case of primary diffuse large B-cell lymphoma of the cranial vault. We recommend including this tumor variant in the differential diagnosis of rapid growing cranial vault tumors.
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Affiliation(s)
- Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
| | - Akifumi Sasao
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
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Fukami T, Yoshimura Y, Fujikawa R, Nozaki K. CS-11 PITUITARY EPENDYMOMA: A CASE REPORT. Neurooncol Adv 2019. [PMCID: PMC7213185 DOI: 10.1093/noajnl/vdz039.181] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Neoplasms of the sellar region generally includes pituitary adenoma, craniopharyngioma, meningioma. We report a case of pituitary ependymoma. CASE A 39 years-old man. He experienced the sense of discomfort of the inside upper part field of vision of the left eye for a few months since May, 201X. Ophthalmological examination showed right homonymous hemianopia of right upper 1/4. He was introduced to the department of neurosurgery of nearby hospital. MRI showed intrasellar tumor and the lesion was partially removed because of solidness by endoscopic transsphenoidal surgery on July, 201X. Postoperative pathological diagnosis was pituitary adenoma. The residual tumor was followed up, but the compression to the left optic nerve was not resolved. So he was introduced to our hospital in January, 201X+1 and endoscopic transsphenoidal surgery was performed on May, 201X+1. OPERATION Supposing the change to extended transsphenoidal surgery, we prepared rescue flap. Enlarging the window of sellar floor and removing the tuberculum sellae, the tumor was totally removed. The boundary between the tumor and the normal pituitary gland was obscure. We inserted fat piece to the intrasellar space, and reconstructed the sellar floor with the absorbable plate following fixation with a polyglycolic acid sheet, fibrin glue, and sinus balloon. PATHOLOGY Fusiform cells having an oval or a short spindle shape nucleus multiplied in strand and palisading pattern through capillary vessels were the main findings, and ependymal rosettes were confirmed. Immunohistchemical study showed chromograninA(focally+), synaptophysin (-), EMA (+, dot and ring pattern), CAM5.2(+), bcl-2(+), TTF-1(-), S100(focally+), GFAP(-). Final diagnosis was pituitary ependymoma. Mild diabetes insipidus was occurred postoperatively but it was controlled medically. Now he is followed up in outpatient department. DISCUSSION Pituitary ependymoma was reported only eight cases in the past literatures. Though it is extremely rare, pituitary ependymoma should be included as a differential diagnosis of the sellar tumors.
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Affiliation(s)
- Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science
| | - Yayoi Yoshimura
- Department of Neurosurgery, Shiga University of Medical Science
| | - Ryoko Fujikawa
- Department of Neurosurgery, Shiga University of Medical Science
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science
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Nitta N, Moritani S, Fukami T, Yoshimura Y, Hirai H, Nozaki K. Corrigendum to 'Intraventricular Epithelioid Glioblastoma: A Case Report' [World Neurosurgery 112 (2018) 257-263]. World Neurosurg 2018; 122:727. [PMID: 30551971 DOI: 10.1016/j.wneu.2018.11.219] [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: 10/27/2022]
Affiliation(s)
- Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan; National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.
| | - Suzuko Moritani
- Division of Diagnostic Pathology, Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
| | - Yayoi Yoshimura
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
| | - Hisao Hirai
- Department of Neurosurgery, Koto Memorial Hospital, Higashiomi, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
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Nitta N, Moritani S, Fukami T, Yoshimura Y, Hirai H, Nozaki K. Intraventricular Epithelioid Glioblastoma: A Case Report. World Neurosurg 2018; 112:257-263. [PMID: 29425978 DOI: 10.1016/j.wneu.2018.01.200] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND Epithelioid glioblastoma, a high-grade, diffuse astrocytic tumor variant, comprises closely packed epithelioid cells and rhabdoid cells. This rare tumor usually develops in the cerebral cortex and diencephalon; however, in the case reported here, it was located intraventricularly. CASE DESCRIPTION A 47-year-old woman was referred to our hospital with a right intraventricular mass that had rapidly increased in size. On discovery of the tumor 3 years earlier at the referring hospital, the mass was small, calcified, and attached to the periventricular parenchyma. Over the next 2 years, the mass grew slowly, as observed on periodic magnetic resonance imaging scans. Forty days before the referral, the patient experienced headache and nausea, and marked growth and intratumoral hemorrhage were visible on a computed tomography scan of the head. The tumor was partially removed via a superior parietal lobule corticotomy. Histopathological examination confirmed an isocitrate dehydrogenase-wild-type epithelioid glioblastoma with a BRAF V600E mutation, but the original slow-growing lesion was no longer detected. Consequently, we assume that in this case, a low-grade glioma transformed into an aggressively malignant epithelioid glioblastoma. CONCLUSIONS We present the first case of an intraventricular epithelioid glioblastoma that might have arisen from a low-grade glioma with calcification. We recommend including this tumor variant in the differential diagnosis of lateral ventricle tumors.
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Affiliation(s)
- Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan; National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.
| | - Suzuko Moritani
- Division of Diagnostic Pathology, Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
| | - Yayoi Yoshimura
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
| | - Hisao Hirai
- Department of Neurosurgery, Koto Memorial Hospital, Higashiomi, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Japan
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Nitta N, Onishi T, Fukami T, Nakasu S, Nozaki K. Diagnosis of demyelinating brain lesion simulating brain tumors on fast imaging employing steady-state acquisition magnetic resonance imaging. Surg Neurol Int 2018; 9:26. [PMID: 29492326 PMCID: PMC5820830 DOI: 10.4103/sni.sni_272_16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 06/21/2017] [Indexed: 11/04/2022] Open
Abstract
Background: Methods: Results: Conclusion:
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Hino H, Nishimura T, Sano A, Yoshida Y, Fukami T, Furuhata Y, Tanaka M, Karasaki T, Takahashi T, Kawashima M, Kuwano H, Nagayama K, Nitadori J, Anraku M, Sato M, Nakajima J. P-153PROGNOSTIC IMPACT ON LUNG CANCER SURGERY IN OCTOGENARIANS: A JAPANESE MULTICENTRE RETROSPECTIVE ANALYSIS. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.153] [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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Fujii M, Inoue M, Fukami T. Novel amino acid-based surfactant for silicone emulsification and its application in hair care products: a promising alternative to quaternary ammonium cationic surfactants. Int J Cosmet Sci 2017; 39:556-563. [PMID: 28699164 DOI: 10.1111/ics.12414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/29/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Quaternary ammonium cationic surfactants (ACSs) and N-[3-alkyl(12,14)oxy-2-hydroxypropyl]-l-arginine hydrochloride (N-AOHPA) were used to emulsify silicone. The potential of the resulting emulsions in hair conditioning products was investigated. METHODS The emulsions were prepared using a homogenizer and/or high-pressure homogenizer. ACSs and N-AOHPA were used as silicone emulsifiers. The stability of the emulsions was evaluated by measuring particle sizes, creaming fractions, polydispersity indexes and zeta potentials. Moreover, the N-AOHPA-stabilized emulsion was compared with the ACS-stabilized emulsion to evaluate the adsorption amount of silicone on healthy and bleached hair surfaces and the inhibitory effects on amino acid dissolution from bleached hair. The adsorption site of the N-AOHPA-stabilized emulsion was observed using a scanning electron microscope. RESULTS For all surfactants, the silicone emulsions prepared using the high-pressure homogenizer were more stable than those prepared using the homogenizer. When N-AOHPA was used as the surfactant, the silicone emulsion was especially stable. Furthermore, the d50 value of the N-AOHPA-stabilized emulsion was smaller than that of the ACS-stabilized emulsion. The adsorption behaviour of the silicone droplets in the different emulsions varied depending on the nature of the surfactant and the preparation method. The amount of ACS-stabilized silicone adsorbed on healthy hair was higher than that adsorbed on bleached hair, especially when the emulsion was prepared using the homogenizer. In contrast, the amount of N-AOHPA-stabilized silicone adsorbed on bleached hair was high, and no differences were observed between the N-AOHPA-stabilized emulsions prepared using the homogenizer and high-pressure homogenizer. The emulsified droplets, especially the N-AOHPA-stabilized droplets prepared using the high-pressure homogenizer, prevented amino acid dissolution from bleached hair. It was concluded that the silicone droplet adsorption site affected the dissolution process because the small N-AOHPA-stabilized droplets adsorbed at cuticle edges. CONCLUSION This study shows that N-AOHPA has good potential for use as an emulsifier in products used for improving the condition of damaged hair.
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Affiliation(s)
- M Fujii
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan.,Milott Cosmetic Corporation, 2976-12 Sugetacho, Yokohama, Kanagawa, 221-0864, Japan
| | - M Inoue
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - T Fukami
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
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Fukami T, Goto M, Matsuoka S, Nishijima-Sorano S, Tohyama A, Nakamura HYS, Matsuoka R, Tsujioka H, Eguchi F. Histologic chorioamnionitis prevalence in patients with premature rupture membranes. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3373.2017] [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: 11/01/2022]
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Fukami T, Goto M, Matsuoka S, Nishijima-Sorano S, Tohyama A, Yamamoto H, Nakamura S, Matsuoka R, Tsujioka H, Eguchi F. The relation between causes and onset time of polyhydramnios. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3335.2017] [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: 11/01/2022]
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Tsujioka H, Matsuoka S, Sorano S, Yamamoto H, Nakamura S, Tohyama A, Fukami T, Goto M, Matsuoka R, Eguchi F. Follow-up study of symptomatic submucous fibroids after hysteroscopic myomectomy. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3254.2017] [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: 11/01/2022]
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Matsuoka T, Tsujioka H, Matsuoka S, Sorano S, Toyama A, Mori H, Yamamoto H, Nakamura S, Fukami T, Goto M, Matsuoka R, Eguchi F. Retroperitoneal leiomyosarcoma: a case report. EUR J GYNAECOL ONCOL 2017; 38:150-152. [PMID: 29767887] [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]
Abstract
Retroperitoneal leiomyosarcoma is a relatively rare and aggressive tumor. Because of its rarity, it is difficult to arrive at a definite diagnosis preoperatively and to design an effective strategy. Here the authors report a case of peritoneal leiomyosarcoma in which diagnosis was difficult because the clinical course resembled that of ovarian cancer. A 77-year-old woman diagnosed with ovarian cancer underwent laparotomy. The excised tumor contained a necrotic polypoid mass that histologically displayed the features of leiomyosarcoma. The patient received adjuvant chemotherapy with a combination of gemcitabine and docetaxel but died two months after surgery owing to the aggressive behavior of the tumor. Because the preoperative diagnosis in this case was ovarian cancer, arriving at a treatment strategy assuming peritoneal leiomyosarcoma was difficult. If complete surgical resection of tumor is not performed, as in the present case, the prognosis can be extremely poor.
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Fukami T, Goto M, Matsuoka S, Nishijima-Sorano S, Thyama A, Yamamoto H, Nakamura S, Matsuoka R, Tsujioka H, Eguchi F. The relation between causes and onset time of polyhydramnios. CLIN EXP OBSTET GYN 2017; 44:113-115. [PMID: 29714878] [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]
Abstract
The aim of this analysis was to investigate the onset time and significance of maximum volume of polyhydraminios and whether the tter was associated with causes. This was a retrospective cohort study between 2012 and 2014. A total number of 68 singleton pregancies were analyzed. Gestational age at onset of polyhydramnios was 30.0 ± 2.8 (25-36) weeks in maternal factor, 30.0 ± 3.5 (25- 7) weeks in fetal factor, and 32.3 ± 2.0 (27-37) weeks in idiopathic factor. Median of maximum amniotic fluid index (AFI) was gnificantly late onset in idiopathic factor. Diabetes, gestational or pre-existing, was present in all of women (ten cases) in maternal facror. Higher AFI was found to be associated with an increased frequency of prenatally detected congenital anomalies. Abnormal fetal kary- type noted in 18/45 (40%) cases of polyhydramnios. Polyhydramnios diagnosed on ultrasound requires further maternal and fetal iagnostic tests.
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Fukami T, Goto M, Matsuoka S, Nishijima-Sorano S, Tohyama A, Yamamoto H, Nakamura S, Matsuoka R, Tsujioka H, Eguchi F. Histologic chorioamnionitis prevalence in patients with premature rupture membranes. CLIN EXP OBSTET GYN 2017; 44:236-238. [PMID: 29746029] [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]
Abstract
This was a retrospective cohort study between 2002 and 2011. A total number of 150 singleton pregnancies with preterm premature rupture of membranes (PROM) (before 34 weeks) were analyzed. Histological chorioamnionitis (Blanc grade III) was significantly increased over three days from onset of premature rupture of membranes. The positive relationship was strengthened (odds ratios, 3.5; 95% confidence intervals, 1.5-5.2) over three days from onset of preterm PROM. PROM is a risk factor important for histological chorioamnionitis. To avoid neonatal infection, early termination is recommended in preterm PROM patients.
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Nakamura S, Tsujioka H, Fukami T, Goto M, Matsuoka R, Eguchi F. Seminoma leading to detection of testicular feminization syndrome: a case report. EUR J GYNAECOL ONCOL 2017; 38:153-156. [PMID: 29767888] [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]
Abstract
The authors here report a 54-year-old (gravida 0, para 0), who claimed to have had her menarche at age 13 and menopause at 52 years. Two months prior to presentation, the subject first noticed a hard but elastic fist-sized mass in the left inguinal region that gradually grew, causing pressure-related pain. Although the external genitalia appeared female, the vagina was short and blind-ending, and no uterus or ovaries were identified on transvaginal ultrasound. Chromosome banding results (G-band method) showed 46XY. Laparoscopy revealed no traces of a vestigial uterus or ovaries; thus, based on the appearance of the external genitalia, a diagnosis of testicular feminization syndrome was made. Pathological testing of the palpable mass led to a diagnosis of seminoma with Leydig cell hyperplasia. Thus, in this case, the development of a seminoma in an undescended testis led to the detection of testicular feminization syndrome.
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Tsujioka H, Matsuoka S, Sorano S, Yamamoto H, Nakamura S, Tohyama A, Fukami T, Goto M, Matsuoka R, Eguchi F. Follow-up study of symptomatic submucous fibroids after hysteroscopic myomectomy. CLIN EXP OBSTET GYN 2017; 44:61-64. [PMID: 29714867] [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]
Abstract
PURPOSE OF INVESTIGATION This study aimed to estimate the effectiveness of hysteroscopic myomectomy for symptomatic submucous uterine fibroids and to identify prognostic factors for persistent or recurrent symptoms. MATERIALS AND METHODS A total of 237 patients who underwent hysteroscopic myomectomy were divided into three groups according to the classification of the European Society for Gynaecological Endoscopy: Type 0 (n=116), Type I (n=97), and Type II (n=24). Medical records and videotape records of all patients were retrospectively reviewed. RESULTS Improvement of symptoms was achieved in 100% of Types 0 and I, and 66.7% of Type II. The five-year cumulative symptom-free rates after hysteroscopic myomectomy were 96.7% ± 1.9%, 87.8% 6.7%, and 44.5% ± 12.7% in Types 0, I, and II, respectively. The mean symptom-free periods were 46.2 ± 2.6, 47.7 ± 2.7, and 24.7 ± 6.3 months in Types 0, I, and II, respectively. Logistic regression analysis showed that co-existence of other myomas and Type II were independent prognostic factors for recurrence of symptoms. CONCLUSION Type I fibroids are a good indication for hysteroscopic myomectomy. In Type II, some patients feel that their symptoms improve, but this curative effect could be temporary.
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Fukami T, Tsujioka H, Matsuoka S, Sorano S, Tohyama A, Yamamoto H, Nakamura S, Goto M, Matsuoka R, Eguchi F. Rupture risk factors of fallopian tubal pregnancy. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog3114.2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Murakami S, Saiki K, Hayashi M, Satou T, Fukami T. A Newly Developed MDI-Based Polyurethane Flexible Foam for Automotive Seat Cushion Having Both Superior Static and Dynamic Properties. J CELL PLAST 2016. [DOI: 10.1106/ta7j-5umg-xa00-wrjq] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
| | | | | | | | - T. Fukami
- Nippon Polyurethane Industry Co., Ltd. Central Research Laboratory, 440 Akiba-cho, Totsuka-ku Yokohama 245-0052, Japan
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Kawano H, Nitta N, Ishida M, Fukami T, Nozaki K. Primary pericranial Ewing's sarcoma on the temporal bone: A case report. Surg Neurol Int 2016; 7:S444-8. [PMID: 27308095 PMCID: PMC4901813 DOI: 10.4103/2152-7806.183545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/27/2016] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Primary Ewing's sarcoma originating in the pericranium is an extremely rare disease entity. CASE DESCRIPTION A 9-year-old female patient was admitted to our department due to a left temporal subcutaneous mass. The mass was localized under the left temporal muscle and attached to the surface of the temporal bone. Head computed tomography revealed a mass with bony spicule formation on the temporal bone, however, it did not show bone destruction or intracranial invasion. F-18 fluorodeoxyglucose positron emission tomography showed no lesions other than the mass on the temporal bone. Magnetic resonance imaging showed that the mass was located between the temporal bone and the pericranium. The mass was completely resected with the underlying temporal bone and the overlying deep layer of temporal muscle, and was diagnosed as primary Ewing's sarcoma. Because the tumor was located in the subpericranium, we created a new classification, "pericranial Ewing's sarcoma," and diagnosed the present tumor as pericranial Ewing's sarcoma. CONCLUSION We herein present an extremely rare case of primary pericranial Ewing's sarcoma that developed on the temporal bone.
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Affiliation(s)
- Hiroto Kawano
- Department of Neurosurgery. Shiga University of Medical Science, Setatsukinowa-cho, Shiga, Japan
| | - Naoki Nitta
- Department of Neurosurgery. Shiga University of Medical Science, Setatsukinowa-cho, Shiga, Japan
| | - Mitsuaki Ishida
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical Science, Setatsukinowa-cho, Shiga, Japan
| | - Tadateru Fukami
- Department of Neurosurgery. Shiga University of Medical Science, Setatsukinowa-cho, Shiga, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery. Shiga University of Medical Science, Setatsukinowa-cho, Shiga, Japan
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Fukami T, Tsujioka H, Matsuoka S, Sorano S, Tohyama A, Yamamoto H, Nakamura S, Goto M, Matsuoka R, Eguchi F. Rupture risk factors of fallopian tubal pregnancy. CLIN EXP OBSTET GYN 2016; 43:800-802. [PMID: 29944226] [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]
Abstract
The present authors analyzed patients' backgrounds and pre-surgical findings to clarify the risk factors of rupture of fallopian tubal pregnancy. The surgical findings 113 cases were clearly diagnosed as fallopian tubal pregnancy with or without rupture. Twenty-six cases of fallopian tubal pregnancy were ruptured and 87 cases were not ruptured at the time of operation. The risk factors of fallopian tubal rupture were assessed by Chi-square for independence test and multiple regression analysis. Obesity (BMI over 26), prior birth history, social welfare entitlement, ultrasonography findings of fetal heart movement, and pre-surgical serum beta-hCG level more than 3,000 mIU/ml patient were significantly higher risk in fallopian tubal rupture. Fertility treatment patient were at significantly lower risk for fallopian tubal rupture. Higher beta-hCG levels, especially >3,000 mIU/ml is associated with increased risk of fallopian tubal rupture in ectopic pregnancy.
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Kurokawa T, Fukami T, Yoshida T, Nakajima M. Arylacetamide Deacetylase is Responsible for Activation of Prasugrel in Human and Dog. Drug Metab Dispos 2015; 44:409-16. [DOI: 10.1124/dmd.115.068221] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 12/29/2015] [Indexed: 11/22/2022] Open
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27
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Tahara S, Kawakita Y, Shimakura H, Ohara K, Fukami T, Takeda S. Intermediate-range chemical ordering of cations in molten RbCl-AgCl. J Chem Phys 2015; 143:044509. [PMID: 26233147 DOI: 10.1063/1.4927507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A first sharp diffraction peak (FSDP) is observed in the X-ray total structure factor of a molten mixture of RbCl-AgCl, while both pure melts of RbCl and AgCl do not exhibit FSDP individually. Molecular dynamics simulations were performed to investigate the origin of the FSDP with the polarizable ion model (PIM). Coexistence of covalent Ag-Cl and ionic Rb-Cl bonds leads the system to evolve intermediate range ordering, which is simulated by introducing the induced polarization in different ways between Ag-Cl with fully polarizable treatment based on Vashishta-Raman potential and Rb-Cl with suppression over-polarization in the nearest neighbor contribution based on Born-Meyer potential. The partial structure factors for both the Ag-Ag and Rb-Rb correlations, SAgAg(Q) and SRbRb(Q), show a positive contribution to the FSDP, while SAgRb(Q) for the Ag-Rb correlation exhibits a negative contribution, indicating that Ag and Rb ions are distributed in an alternating manner within the intermediate-range length scale. The origin of the intermediate-range chemical ordering of cations can be ascribed to the preferred direction of the dipole moments of anions in the PIM.
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Affiliation(s)
- S Tahara
- Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Y Kawakita
- J-PARC Center, Japan Atomic Energy Agency (JAEA), Ibaraki 319-1195, Japan
| | - H Shimakura
- Faculty of Pharmacy, Niigata University of Pharmacy and Applied Life Sciences, Niigata 956-8603, Japan
| | - K Ohara
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI, SPring-8), Hyogo 679-5198, Japan
| | - T Fukami
- Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan
| | - S Takeda
- Department of Physics, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan
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28
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Yoshimura Y, Shiino A, Muraki K, Fukami T, Yamada S, Satow T, Fukuda M, Saiki M, Hojo M, Miyamoto S, Onishi N, Saya H, Inubushi T, Nozaki K, Tanigaki K. Arsenic trioxide sensitizes glioblastoma to a myc inhibitor. PLoS One 2015; 10:e0128288. [PMID: 26038891 PMCID: PMC4454553 DOI: 10.1371/journal.pone.0128288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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] [Received: 07/15/2014] [Accepted: 04/27/2015] [Indexed: 12/15/2022] Open
Abstract
Glioblastoma multiforme (GBM) is associated with high mortality due to infiltrative growth and recurrence. Median survival of the patients is less than 15 months, increasing requirements for new therapies. We found that both arsenic trioxide and 10058F4, an inhibitor of Myc, induced differentiation of cancer stem-like cells (CSC) of GBM and that arsenic trioxide drastically enhanced the anti-proliferative effect of 10058F4 but not apoptotic effects. EGFR-driven genetically engineered GBM mouse model showed that this cooperative effect is higher in EGFRvIII-expressing INK4a/Arf-/- neural stem cells (NSCs) than in control wild type NSCs. In addition, treatment of GBM CSC xenografts with arsenic trioxide and 10058F4 resulted in significant decrease in tumor growth and increased differentiation with concomitant decrease of proneural and mesenchymal GBM CSCs in vivo. Our study was the first to evaluate arsenic trioxide and 10058F4 interaction in GBM CSC differentiation and to assess new opportunities for arsenic trioxide and 10058F4 combination as a promising approach for future differentiation therapy of GBM.
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Affiliation(s)
- Yayoi Yoshimura
- Research Institute, Shiga Medical Center, Moriyama 5-4-30, Shiga 524–8524, Japan
- Department of Neurosurgery, Shiga University of Medical Science, Shiga 520–2192, Japan
| | - Akihiko Shiino
- Biomedical MR Science Center, Shiga University of Medical Science, Shiga 520–2192, Japan
- Department of Neurosurgery, Shiga University of Medical Science, Shiga 520–2192, Japan
| | - Kazue Muraki
- Research Institute, Shiga Medical Center, Moriyama 5-4-30, Shiga 524–8524, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Shiga 520–2192, Japan
| | - Shigeki Yamada
- Department of Neurosurgery, Shiga Medical Center, Shiga 524–8524, Japan
| | - Takeshi Satow
- Department of Neurosurgery, Shiga Medical Center, Shiga 524–8524, Japan
| | - Miyuki Fukuda
- Department of Neurosurgery, Shiga Medical Center, Shiga 524–8524, Japan
| | - Masaaki Saiki
- Department of Neurosurgery, Shiga Medical Center, Shiga 524–8524, Japan
| | - Masato Hojo
- Department of Neurosurgery, Shiga Medical Center, Shiga 524–8524, Japan
| | - Susumu Miyamoto
- Department of Neurosurgery, Graduate School of Medicine, Kyoto University, Kyoto 606–8507, Japan
| | - Nobuyuki Onishi
- Division of Gene Regulation, School of Medicine, Keio University, Tokyo 160–8582, Japan
| | - Hideyuki Saya
- Division of Gene Regulation, School of Medicine, Keio University, Tokyo 160–8582, Japan
| | - Toshiro Inubushi
- Biomedical MR Science Center, Shiga University of Medical Science, Shiga 520–2192, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Shiga 520–2192, Japan
- * E-mail: (KN); (KT)
| | - Kenji Tanigaki
- Research Institute, Shiga Medical Center, Moriyama 5-4-30, Shiga 524–8524, Japan
- * E-mail: (KN); (KT)
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Otsuka M, Maeno Y, Fukami T, Inoue M, Tagami T, Ozeki T. Developmental considerations for ethanolates with regard to stability and physicochemical characterization of efonidipine hydrochloride ethanolate. CrystEngComm 2015. [DOI: 10.1039/c5ce00751h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efonidipine hydrochloride ethanolate arranges the chloride ion within a basket-type conformation. This distinctive crystal structure would contribute to the improvement of the API's thermal stability.
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Affiliation(s)
- M. Otsuka
- Analysis Research Department
- Nissan Chemical Industries, Ltd
- Funabashi-shi, Japan
| | - Y. Maeno
- Analysis Research Department
- Nissan Chemical Industries, Ltd
- Funabashi-shi, Japan
| | - T. Fukami
- Department of Molecular Pharmaceutics
- Meiji Pharmaceutical University
- Kiyose, Japan
| | - M. Inoue
- Department of Molecular Pharmaceutics
- Meiji Pharmaceutical University
- Kiyose, Japan
| | - T. Tagami
- Drug Delivery and Nano Pharmaceutics
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Mizuho-ku, Japan
| | - T. Ozeki
- Drug Delivery and Nano Pharmaceutics
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Mizuho-ku, Japan
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Nishiuchi M, Sakaki H, Maeda S, Sagisaka A, Pirozhkov AS, Pikuz T, Faenov A, Ogura K, Kanasaki M, Matsukawa K, Kusumoto T, Tao A, Fukami T, Esirkepov T, Koga J, Kiriyama H, Okada H, Shimomura T, Tanoue M, Nakai Y, Fukuda Y, Sakai S, Tamura J, Nishio K, Sako H, Kando M, Yamauchi T, Watanabe Y, Bulanov SV, Kondo K. Multi-charged heavy ion acceleration from the ultra-intense short pulse laser system interacting with the metal target. Rev Sci Instrum 2014; 85:02B904. [PMID: 24593609 DOI: 10.1063/1.4827111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Experimental demonstration of multi-charged heavy ion acceleration from the interaction between the ultra-intense short pulse laser system and the metal target is presented. Al ions are accelerated up to 12 MeV/u (324 MeV total energy). To our knowledge, this is far the highest energy ever reported for the case of acceleration of the heavy ions produced by the <10 J laser energy of 200 TW class Ti:sapphire laser system. Adding to that, thanks to the extraordinary high intensity laser field of ∼10(21) W cm(-2), the accelerated ions are almost fully stripped, having high charge to mass ratio (Q/M).
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Affiliation(s)
- M Nishiuchi
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Sakaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Maeda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Sagisaka
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A S Pirozhkov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Pikuz
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Faenov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Ogura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kanasaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Matsukawa
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Kusumoto
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Tao
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Fukami
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Esirkepov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - J Koga
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Kiriyama
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Okada
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Shimomura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Tanoue
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Nakai
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Fukuda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Sakai
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - J Tamura
- J-PARC Center, Tokai, Ibaragi, Japan
| | - K Nishio
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - H Sako
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - M Kando
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Yamauchi
- Graduate School of Maritime Science, Kobe University, 5-1-1 Fukaeminami-machi, Higashinada-ku, Kobe 658-0022, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Kondo
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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31
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Sakaki H, Nishiuchi M, Maeda S, Sagisaka A, Pirozhkov AS, Pikuz T, Faenov A, Ogura K, Fukami T, Matsukawa K, Kanasaki M, Fukuda Y, Yogo A, Esirkepov T, Kiriyama H, Shimomura T, Nakai Y, Tanoue M, Torimoto K, Okamoto M, Sato T, Niita K, Tamura J, Nishio K, Sako H, Yamauchi T, Watanabe Y, Bulanov S, Kondo K. Measurements of electron-induced neutrons as a tool for determination of electron temperature of fast electrons in the task of optimization laser-produced plasma ions acceleration. Rev Sci Instrum 2014; 85:02A705. [PMID: 24593439 DOI: 10.1063/1.4825154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
High intensity laser-plasma interaction has attracted considerable interest for a number of years. The laser-plasma interaction is accompanied by generation of various charged particle beams, such as high-energy proton and ions with high charge to mass ratio (Q/M; same as multi-charged ions). Results of simultaneous novel measurements of electron-induced photonuclear neutrons (photoneutron), which are a diagnostic of the laser-plasma interaction, are proposed to use for optimization of the laser-plasma ion generation. The proposed method is demonstrated by the laser irradiation with the intensity of 1 × 10(21) W/cm(2) on the metal foil target. The photoneutrons are measured by using NE213 liquid scintillation detectors. Heavy-ion signal is registered with the CR-39 track detector simultaneously. The measured signals of the electron-induced photoneutrons are well reproduced by using the Particle and Heavy Ion Transport code System. The results obtained provide useful approach for analyzing the various laser based ion beams.
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Affiliation(s)
- H Sakaki
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Nishiuchi
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Maeda
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Sagisaka
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | | | - T Pikuz
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Faenov
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Ogura
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Fukami
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Matsukawa
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kanasaki
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Fukuda
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Yogo
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Esirkepov
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Kiriyama
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Shimomura
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Nakai
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Tanoue
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Torimoto
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Okamoto
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Sato
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - K Niita
- Research Organization for Information Science and Technology, Tokai, Ibaragi, Japan
| | - J Tamura
- J-PARC Center, Tokai, Ibaragi, Japan
| | - K Nishio
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - H Sako
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - T Yamauchi
- Graduate School of Maritime Sciences, Kobe University, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Japan
| | - S Bulanov
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Kondo
- Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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Abstract
We present a third reported case of intracranial germinomas occurring in two brothers. They underwent chemotherapy and radiotherapy after biopsy and are doing well for 10 years and 20 months, respectively. The pertinent literatures are reviewed, and the possible role of heredity in the pathogenesis of familial occurrence of germinomas is discussed.
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Affiliation(s)
- Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical Science
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Ishida M, Fukami T, Nitta N, Iwai M, Yoshida K, Kagotani A, Nozaki K, Okabe H. Xanthomatous meningioma: a case report with review of the literature. Int J Clin Exp Pathol 2013; 6:2242-6. [PMID: 24133605 PMCID: PMC3796249] [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] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 08/27/2013] [Indexed: 06/02/2023]
Abstract
Xanthomatous meningioma is an extremely rare variant of meningioma that is characterized histopathologically by the presence of tumor cells with lipid-filled vacuolated cytoplasm. In this report, we describe the fifth documented case of xanthomatous meningioma and review its clinicopathological features. A 76-year-old Japanese male presented with dizziness. Magnetic resonance imaging demonstrated a well-circumscribed tumor in the left parasagittal to frontal region with attachment of the dura mater. Histopathological examination of the resected specimen revealed proliferation of polygonal to spindle cells with eosinophilic cytoplasm and bland round to oval nuclei. Whorl formation and psammomas were scattered, and mitotic figures were rarely seen. A peculiar finding was the presence of extensive xanthomatous change continuing to the above-mentioned typical meningothelial meningioma. These tumor cells had clear vacuolated cytoplasm and bland round to oval nuclei. Immunohistochemically, xanthomatous cells were positive for epithelial membrane antigen. Accordingly, an ultimate diagnosis of xanthomatous meningioma was made. Our clinicopathological analysis revealed that xanthomatous meningioma affects children to young persons or the elderly, and four of five cases were located in the supratentorial region. Although the detailed mechanism underlying the xanthomatous change has not been clarified, this change is thought to result from a metabolic abnormality of the neoplastic meningothelial cells. Further, xanthomatous change has also been reported in atypical and anaplastic meningiomas. Therefore, it is important to recognize that xanthomatous change can occur in meningiomas, and to avoid misidentifying these cells as macrophages.
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Affiliation(s)
- Mitsuaki Ishida
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical ScienceShiga, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical ScienceShiga, Japan
| | - Naoki Nitta
- Department of Neurosurgery, Shiga University of Medical ScienceShiga, Japan
| | - Muneo Iwai
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical ScienceShiga, Japan
| | - Keiko Yoshida
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical ScienceShiga, Japan
| | - Akiko Kagotani
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical ScienceShiga, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical ScienceShiga, Japan
| | - Hidetoshi Okabe
- Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical ScienceShiga, Japan
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Ota M, Fukami T, Arakawa M, Hayashi H, Suzuki T, Iwata M, Tomono K, Hidaka S. Examination of factors that delay the elution of acetaminophen from over-the-counter drugs. Pharmazie 2012; 67:1018-1025. [PMID: 23346767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The information on the stability of medications is important to secure their quality. There is, however, little information about the stability of medications which assume to be kept by patients and customers. We previously showed that a delay in drug release occurs in some over-the-counter (OTC) drugs following storage in a high temperature, high humidity environment. In this study we prepared model tablet formulations containing an active ingredient and excipients to investigate the cause of this delayed release. The results reveal that delayed release occurs in preparations compounded with acetaminophen (AA) as the active ingredient and erythritol (ET) and crospovidone (CP) as excipients. In addition, ET deliquesces in a high humidity environment, then incorporates other particles during room temperature storage to form an aggregate. SEM observations and micropore distribution measurements conducted on OTC tablets that exhibit delayed release revealed that the number of intraparticle pores decreased after storage under high temperature, high humidity conditions. Thus, the delayed release by these pharmaceutical product formulations may be due to a change in the micropore structure both on the surface and within the particles, thereby decreasing the solvent infiltration pathways leading to the interior of the preparation.
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Affiliation(s)
- M Ota
- Department of Pharmacy, School of Pharmacy, Nihon University, Chiba, Japan
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Nakazawa T, Takeichi Y, Yokoi T, Fukami T, Jito J, Nitta N, Takagi K, Nozaki K. Treatment of Spontaneous Intradural Vertebral Artery Dissections. Neuroradiol J 2011; 24:699-711. [DOI: 10.1177/197140091102400506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 01/03/2011] [Indexed: 11/16/2022] Open
Abstract
Spontaneous intradural vertebral artery dissections may cause subarachnoid hemorrhage and often result in devastating damage. Increased use of noninvasive imaging studies has allowed larger numbers of patients to be diagnosed. In addition, intracranial vertebral artery dissection tends to induce multiple lesions affecting both intracranial vertebral arteries recurrently. Although unruptured dissections in this area usually have a benign nature, some authors have reported on the incidence of rupture from this lesion. Once hemorrhage from a dissecting vessel wall has occurred, it needs to be treated in the acute phase because of the high risk of rebleeding resulting in high morbidity and mortality. From December 2004 to July 2010, we managed 47 patients with spontaneous vertebral artery dissection, 31 patients were ruptured and 16 were unruptured. All patients who suffered from subarachnoid hemorrhage were treated with endovascular procedures. Most of the patients with unruptured dissection received medical therapy, but if the aneurysmal dilatation persisted or grew, surgical interventions were performed. Stenting with or without coils was deployed for 13 patients with posterior inferior cerebellar artery involvement at the site of dissection and/or were affected on the dominant side. In some patients, stenting was performed even if they were in the acute phase. For other ruptured patients, internal coil trappings were performed. Six patients died due to severe initial subarachnoid hemorrhage and one patient, who underwent stent deployment with coils for the dominant vertebral artery, with bilateral dissection continuing to the basilar artery died due to rerupture while the next additional coiling was planning. There were two cases of complications related to the intervention. During the follow-up period no bleeding occurred in any of the patients except for the previously mentioned patient. In conclusion, internal coil trapping or stent placement with or without coils was effective in preventing rebleeding of ruptured vertebral artery dissection. If the dissection is unruptured, it is necessary to detect the risk of bleeding with careful watching and when progress appears to be made, patients should be treated promptly. Stent-assisted therapy for preserving the patency of the parent artery and major branches is a promising treatment for vertebral artery dissection, even in the acute stage of subarachnoid hemorrhage. However, the risk of acute rerupture and recurrence remains even with the porous stent placement with or without coils.
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Affiliation(s)
| | - Y. Takeichi
- Department of Neurosurgery, Otsu Red-Cross Hospital; Shiga, Japan
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Fukami T, Nozaki K. [Selection of surgical approach to orbital tumors based on differential diagnosis]. No Shinkei Geka 2011; 39:641-655. [PMID: 21719907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Japan
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Sano A, Takeuchi E, Fukami T, Murakawa T, Nakajima J. Erosion bleeding as a late complication of chest wall reconstruction with a Dacron mesh silicone prosthesis. Thorac Cardiovasc Surg 2011; 60:170-1. [PMID: 21442584 DOI: 10.1055/s-0030-1250771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A 71-year-old man who had undergone chest wall resection and reconstruction with a Dacron mesh silicone prosthesis for chondrosarcoma 23 years previously presented with a chest wall hematoma. Since the hematoma was found to increase in size over time, we performed an operation to achieve hemostasis. Operative findings showed that the prosthesis had separated into three sheets.
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Affiliation(s)
- A Sano
- Department of Cardiothoracic Surgery, The University of Tokyo, Tokyo, Japan.
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Fukami T, Kyan T, Nakano K, Chen RH. Crystal structure and phase transition of single crystalline CsNH2SO3. Cryst Res Technol 2011. [DOI: 10.1002/crat.201000623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Suda A, Koyano H, Kawasaki K, Ono N, Shiratori Y, Hasegawa K, Fukami T, Miura T, Saito R, Shimma N, Tsukuda T. 92 The design and synthesis of a novel orally available Hsp90 inhibitor CH5164840. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71797-3] [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] Open
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40
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Sano A, Kosugi N, Kitano K, Sakamoto M, Yoshida Y, Fukami T, Murakawa T, Nakajima J. [Thymoma with synchronous pulmonary metastasis; report of a case]. Kyobu Geka 2010; 63:1090-1093. [PMID: 21066855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report a resected case of thymoma with a solitary pulmonary metastasis. A 63-year-old woman had pointed out a solitary nodule in right lung field on chest X-ray. Computed tomography (CT) scan showed an anterior mediastinal tumor and a solitary lung nodule in the right lower lobe. Extended thymectomy and partial resection of right lung was performed. Pathological diagnosis showed an invasive thymoma (type B3) and a pulmonary metastasis. Post operative radiotherapy was administered and she is doing well 19 months following the resection. Thymoma with a solitary synclonous pulmonary metastasis is rare and is classified into Masaoka stage IVb. Generally, thymoma cases with distant metastasis are not indication for operation. But, if radical resection is possible, operation is recommended for good prognosis.
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Affiliation(s)
- A Sano
- Department of Cardiothoracic Surgery, The University of Tokyo, Graduate School of Medicine Tokyo, Japan
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41
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Ishikawa B, Ishikawa F, Nakamura M, Otsuki H, Masubuchi N, Fukami T, Kaga K. P37-20 Absence of P300 and presence of N1 in two patients after herpes encephalitis. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61337-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Shimada T, Fukami T, Sakata O, Saito Y. P18-4 The effect of background images combined with face images expressing fear. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60857-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Ishikawa B, Ishikawa F, Nakamura M, Otsuki H, Masubuchi N, Fukami T, Kaga K. P4-14 P300 ERP of normal young adults. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60509-3] [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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44
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Fukami T, Miyazaki J, Tomimura T, Chen RH. Crystal structures and isotope effect on Na5H3(SeO4)4·2H2O and Na5D3(SeO4)4·2D2O crystals. Cryst Res Technol 2010. [DOI: 10.1002/crat.201000116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Nakatsuma A, Fukami T, Suzuki T, Furuishi T, Tomono K, Hidaka S. Effects of kaempferol on the mechanisms of drug resistance in the human glioblastoma cell line T98G. Pharmazie 2010; 65:379-383. [PMID: 20503933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Food contains components that may either increase or decrease the bioavailability of a drug. In particular, it is known that grapefruit juice and St. John's Wort induce drug interactions via an effect on the drug-metabolizing enzyme cytochrome P450 (CYP). However, interactions with membrane transporters, such as P-glycoprotein and multidrug resistance-related protein (MRP), may also influence drug bioavailability. The objective of the present study was to investigate the effects of kaempferol, a flavonoid present in food, on the cytotoxicity of anticancer drugs and the mechanisms of drug resistance in the human glioblastoma cell line T98G. Acute exposure to kaempferol inhibited the efflux of calcein, a substrate of MRP; however, chronic exposure caused no apparent effect on calcein efflux. The cytotoxicity of doxorubicin was not influenced by chronic exposure of cells to kaempferol, although that of cisplatin was significantly reduced. Multidrug resistance is often associated with increased levels of MRP1, glutathione S-transferase (GST) and activity by chronic exposure to kaempferol, although MRP2 protein levels are decreased. Accordingly, we hypothesized that the cytotoxicity of anticancer drugs that conjugate with glutathione and the substrate of MRPs may be influenced by long-term intake of drugs such as kaempferol, which are substrates of MRPs and GST.
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Affiliation(s)
- A Nakatsuma
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki City, Kagawa, Japan.
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46
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Nishida N, Asakura H, Yonezawa M, Tateyama N, Doi D, Fukami T. P197 Prediction of preterm birth in comparison of TVS findings to those with positive fetal fibronectin (fFN). Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61688-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Asakura H, Tateyama N, Nishida N, Fukami T, Doi D. P183 Correlation between absent cervical gland area (CGA) by ultrasonographic observation and hyaluronic acid in cervical mucus in pregnant women suffering from threatened premature delivery. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61674-x] [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: 11/28/2022]
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48
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Murakawa T, Nakajima J, Fukami T, Kusakabe M, Shibahara J, Goto A, Yoshida Y, Sugiura M, Inoue Y, Fukayama M, Takamoto S. [Lung cancer operation in situs inversus totalis patient]. Kyobu Geka 2009; 62:1010-1013. [PMID: 19827557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Situs inversus totalis represents a complete mirror image anatomy of the normal arrangement of the thoracic and abdominal viscera. This rare condition may pose possible surgical problems due to anatomical abnormality. There were few reports of surgical treatment for lung cancer patient with situs inversus totalis. In this case report, we describe a 74-year-old patient with situs inversus totalis and primary lung cancer who underwent successful left upper lobectomy and systemic lymph node dissection. For this rare condition, detail preoperative evaluation of mirror image anatomy with computed tomography and bronchofiber optic examination was thought to be a key to carry out safe operative procedure.
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Affiliation(s)
- Tomohiro Murakawa
- Department of Cardiothoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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49
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van der Putten WH, Bardgett RD, de Ruiter PC, Hol WHG, Meyer KM, Bezemer TM, Bradford MA, Christensen S, Eppinga MB, Fukami T, Hemerik L, Molofsky J, Schädler M, Scherber C, Strauss SY, Vos M, Wardle DA. Empirical and theoretical challenges in aboveground-belowground ecology. Oecologia 2009. [PMID: 19412705 DOI: 10.1515/9781400847297.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A growing body of evidence shows that aboveground and belowground communities and processes are intrinsically linked, and that feedbacks between these subsystems have important implications for community structure and ecosystem functioning. Almost all studies on this topic have been carried out from an empirical perspective and in specific ecological settings or contexts. Belowground interactions operate at different spatial and temporal scales. Due to the relatively low mobility and high survival of organisms in the soil, plants have longer lasting legacy effects belowground than aboveground. Our current challenge is to understand how aboveground-belowground biotic interactions operate across spatial and temporal scales, and how they depend on, as well as influence, the abiotic environment. Because empirical capacities are too limited to explore all possible combinations of interactions and environmental settings, we explore where and how they can be supported by theoretical approaches to develop testable predictions and to generalise empirical results. We review four key areas where a combined aboveground-belowground approach offers perspectives for enhancing ecological understanding, namely succession, agro-ecosystems, biological invasions and global change impacts on ecosystems. In plant succession, differences in scales between aboveground and belowground biota, as well as between species interactions and ecosystem processes, have important implications for the rate and direction of community change. Aboveground as well as belowground interactions either enhance or reduce rates of plant species replacement. Moreover, the outcomes of the interactions depend on abiotic conditions and plant life history characteristics, which may vary with successional position. We exemplify where translation of the current conceptual succession models into more predictive models can help targeting empirical studies and generalising their results. Then, we discuss how understanding succession may help to enhance managing arable crops, grasslands and invasive plants, as well as provide insights into the effects of global change on community re-organisation and ecosystem processes.
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Affiliation(s)
- Wim H van der Putten
- Department of Multitrophic Interactions, Centre for Terrestrial Ecology, Netherlands Institute of Ecology NIOO-KNAW, Heteren, The Netherlands.
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50
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van der Putten WH, Bardgett RD, de Ruiter PC, Hol WHG, Meyer KM, Bezemer TM, Bradford MA, Christensen S, Eppinga MB, Fukami T, Hemerik L, Molofsky J, Schädler M, Scherber C, Strauss SY, Vos M, Wardle DA. Empirical and theoretical challenges in aboveground-belowground ecology. Oecologia 2009; 161:1-14. [PMID: 19412705 PMCID: PMC2700873 DOI: 10.1007/s00442-009-1351-8] [Citation(s) in RCA: 198] [Impact Index Per Article: 13.2] [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: 12/16/2008] [Accepted: 03/12/2009] [Indexed: 11/28/2022]
Abstract
A growing body of evidence shows that aboveground and belowground communities and processes are intrinsically linked, and that feedbacks between these subsystems have important implications for community structure and ecosystem functioning. Almost all studies on this topic have been carried out from an empirical perspective and in specific ecological settings or contexts. Belowground interactions operate at different spatial and temporal scales. Due to the relatively low mobility and high survival of organisms in the soil, plants have longer lasting legacy effects belowground than aboveground. Our current challenge is to understand how aboveground-belowground biotic interactions operate across spatial and temporal scales, and how they depend on, as well as influence, the abiotic environment. Because empirical capacities are too limited to explore all possible combinations of interactions and environmental settings, we explore where and how they can be supported by theoretical approaches to develop testable predictions and to generalise empirical results. We review four key areas where a combined aboveground-belowground approach offers perspectives for enhancing ecological understanding, namely succession, agro-ecosystems, biological invasions and global change impacts on ecosystems. In plant succession, differences in scales between aboveground and belowground biota, as well as between species interactions and ecosystem processes, have important implications for the rate and direction of community change. Aboveground as well as belowground interactions either enhance or reduce rates of plant species replacement. Moreover, the outcomes of the interactions depend on abiotic conditions and plant life history characteristics, which may vary with successional position. We exemplify where translation of the current conceptual succession models into more predictive models can help targeting empirical studies and generalising their results. Then, we discuss how understanding succession may help to enhance managing arable crops, grasslands and invasive plants, as well as provide insights into the effects of global change on community re-organisation and ecosystem processes.
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Affiliation(s)
- Wim H van der Putten
- Department of Multitrophic Interactions, Centre for Terrestrial Ecology, Netherlands Institute of Ecology NIOO-KNAW, Heteren, The Netherlands.
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