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Arita H, Suzuki Y. Contact transition control by adjusting emitting energy of proximity sensor. Adv Robot 2020. [DOI: 10.1080/01691864.2020.1848622] [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: 10/22/2022]
Affiliation(s)
- H. Arita
- Department of Robotics, College of Science and Engineering, Ritsumeikan University, Kusatsu, Japan
| | - Y. Suzuki
- Faculty of Mechanical Engineering, Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan
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Arita H, Yamasaki K, Kanemura Y, Mukasa A, Nagane M, Ueki K, Nishikawa R, Komori T, Narita Y, Ichimura K. OS07.6 A combination of TERT and MGMT improves the prognostication of glioblastomas. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.047] [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: 11/13/2022] Open
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Takeno Y, Arita H, Oshima C, Mawaki A, Nakanishi K, Kurono F, Fujimoto E. Long-term follow-up of collateral pathways established after lymphadenectomy in rats. Lymphology 2017; 50:131-135. [PMID: 30234249] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A collateral pathway established after lymphadenectomy could play an important role in long-term lymphedema treatment. The present study investigated alterations of lymph dynamics 1 year after lymphadenectomy using indocyanine green fluorescent lymphography to determine if a collateral pathway may be used for long-term lymphedema treatment. Wistar rats were anaesthetized and lymph nodes were excised at the inguinal and popliteal fossae. The treated hind limb was evaluated by fluorescent lymphography between 10 weeks and 6 months and between 6 months and 1 year postoperatively. Fluorescent lymphography demonstrated a lymphatic pathway to the ipsilateral axillary fossa in all rats 1 year after lymphadenectomy. Some capillary branches in the paths leading to the ipsilateral axillary fossa were dilated and tortuous. In addition, areas in which a fluorescent signal was not visible were increased in the thigh. In conclusion, the collateral pathway did not appear to be only for temporary use to compensate for drainage from the edematous limb but appears more stable as a component of a compensating lymphatic system. These new dilated vessels, although functional at this point, may still be susceptible to disturbance by further alteration to the lymph vessels.
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Affiliation(s)
- Y Takeno
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - H Arita
- Faculty of Nursing and Social Welfare Sciences, Fukui Prefectural University, Fukui, Japan
| | - C Oshima
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - A Mawaki
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - K Nakanishi
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - F Kurono
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - E Fujimoto
- Department of Nursing, Graduate School of Medicine, Nagoya University, Aichi, Japan
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Takenaka K, Kishino J, Yamada H, Sakai N, Arita H, Okano Y, Nozawa Y. DNA synthesis and intracellular calcium elevation in porcine cerebral arterial smooth muscle cells by cerebrospinal fluid from patients with subarachnoid haemorrhage. Neurol Res 2016; 14:330-4. [PMID: 1360629 DOI: 10.1080/01616412.1992.11740079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
To understand the molecular mechanism of the pathogenesis of cerebral vasospasm following subarachnoid haemorrhage, we analysed the effect of cerebrospinal fluid from patients with subarachnoid haemorrhage on DNA synthesis and cytosolic-free calcium elevation in cultured porcine cerebral smooth muscle cells. Cerebrospinal fluid from patients on day 2 after subarachnoid haemorrhage induced transient elevation in cytosolic-free calcium levels. In contrast, the maximal elevation of cytosolic-free calcium levels induced by cerebrospinal fluid from control patients (without subarachnoid haemorrhage) was significantly lower than that induced by cerebrospinal fluid from patients with subarachnoid haemorrhage. In cultured porcine cerebral arterial smooth muscle cells, cerebrospinal fluid from patients with subarachnoid haemorrhage promoted levels of [3H]-thymidine incorporation (DNA synthesis) more than 2.5-fold higher than that promoted by cerebrospinal fluid from control patients without subarachnoid haemorrhage. However, in cultured aortic smooth muscle cells, there was no significant difference in [3H]-thymidine incorporation between cerebrospinal fluid from patients with subarachnoid haemorrhage and that by control cerebrospinal fluid. From these results in cerebral arterial smooth muscle cells, cerebrospinal fluid from patients following subarachnoid haemorrhage may play not only constrictive functions, evidenced by cytosolic-free calcium elevations, but also proliferative functions, demonstrated by promotion of [3H]-thymidine incorporation. The relevance of these factors to vasospasm will be discussed.
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Affiliation(s)
- K Takenaka
- Department of Neurosurgery, Gifu University School of Medicine, Japan
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Takano K, Kinoshita M, Arita H, Okita Y, Chiba Y, Kagawa N, Fujimoto Y, Kishima H, Kanemura Y, Nonaka M, Nakajima S, Shimosegawa E, Hatazawa J, Hashimoto N, Yoshimine T. Diagnostic and Prognostic Value of 11C-Methionine PET for Nonenhancing Gliomas. AJNR Am J Neuroradiol 2015; 37:44-50. [PMID: 26381556 DOI: 10.3174/ajnr.a4460] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 05/07/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Noninvasive radiologic evaluation of glioma can facilitate correct diagnosis and detection of malignant transformation. Although positron-emission tomography is considered valuable in the care of patients with gliomas, (18)F-fluorodeoxyglucose and (11)C-methionine have reportedly shown ambiguous results in terms of grading and prognostication. The present study compared the diagnostic and prognostic capabilities of diffusion tensor imaging, FDG, and (11)C-methionine PET in nonenhancing gliomas. MATERIALS AND METHODS Thirty-five consecutive newly diagnosed, histologically confirmed nonenhancing gliomas that underwent both FDG and (11)C-methionine PET were retrospectively investigated (23 grade II and 12 grade III gliomas). Apparent diffusion coefficient, fractional anisotropy, and tumor-to-normal tissue ratios of both FDG and (11)C-methionine PET were compared between grade II and III gliomas. Prognostic values of these parameters were also tested by using progression-free survival. RESULTS Grade III gliomas showed significantly higher average tumor-to-normal tissue and maximum tumor2-to-normal tissue than grade II gliomas in (11)C-methionine (P = .013, P = .0017, respectively), but not in FDG-PET imaging. There was no significant difference in average ADC, minimum ADC, average fractional anisotropy, and maximum fractional anisotropy. (11)C-methionine PET maximum tumor-to-normal tissue ratio of 2.0 was most suitable for detecting grade III gliomas among nonenhancing gliomas (sensitivity, 83.3%; specificity, 73.9%). Among patients not receiving any adjuvant therapy, median progression-free survival was 64.2 ± 7.2 months in patients with maximum tumor-to-normal tissue ratio of <2.0 for (11)C-methionine PET and 18.6 ± 6.9 months in patients with maximum tumor-to-normal tissue ratio of >2.0 (P = .0044). CONCLUSIONS (11)C-methionine PET holds promise for World Health Organization grading and could offer a prognostic imaging biomarker for nonenhancing gliomas.
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Affiliation(s)
- K Takano
- From the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - M Kinoshita
- From the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - H Arita
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - Y Okita
- Department of Neurosurgery (Y.O., Y.K., M.N., S.N.)
| | - Y Chiba
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.) Department of Neurosurgery (Y.C.), Kansai Rosai Hospital, Itami, Japan
| | - N Kagawa
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - Y Fujimoto
- Department of Neurosurgery (Y.F.), Osaka Neurological Institute, Osaka, Japan
| | - H Kishima
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - Y Kanemura
- Department of Neurosurgery (Y.O., Y.K., M.N., S.N.) Division of Regenerative Medicine (Y.K.), Institute for Clinical Research, Osaka National Hospital, National Hospital Organization, Osaka, Japan
| | - M Nonaka
- Department of Neurosurgery (Y.O., Y.K., M.N., S.N.) Department of Neurosurgery (M.N.), Kansai Medical University, Osaka, Japan
| | - S Nakajima
- Department of Neurosurgery (Y.O., Y.K., M.N., S.N.)
| | - E Shimosegawa
- Nuclear Medicine and Tracer Kinetics (E.S., J.H.), Osaka University Graduate School of Medicine, Osaka, Japan
| | - J Hatazawa
- Nuclear Medicine and Tracer Kinetics (E.S., J.H.), Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Hashimoto
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
| | - T Yoshimine
- Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)
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Nakamura T, Tateishi K, Niwa T, Matsushita Y, Tamura K, Kinoshita M, Tanaka K, Fukushima S, Takami H, Arita H, Kubo A, Shuto T, Ohno M, Miyakita Y, Kocialkowski S, Sasayama T, Hashimoto N, Maehara T, Shibui S, Ushijima T, Kawahara N, Narita Y, Ichimura K. Recurrent mutations of CD79B and MYD88 are the hallmark of primary central nervous system lymphomas. Neuropathol Appl Neurobiol 2015; 42:279-90. [PMID: 26111727 DOI: 10.1111/nan.12259] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [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: 02/03/2015] [Accepted: 06/21/2015] [Indexed: 12/12/2022]
Abstract
AIMS Primary central nervous system lymphoma (PCNSL) manifest aggressive clinical behaviour and have poor prognosis. Although constitutive activation of the nuclear factor-κB (NF-κB) pathway has been documented, knowledge about the genetic alterations leading to the impairment of the NF-κB pathway in PCNSLs is still limited. This study was aimed to unravel the underlying genetic profiles of PCNSL. METHODS We conducted the systematic sequencing of 21 genes relevant to the NF-κB signalling network for 71 PCNSLs as well as the pyrosequencing of CD79B and MYD88 mutation hotspots in a further 35 PCNSLs and 46 glioblastomas (GBMs) for validation. RESULTS The results showed that 68 out of 71 PCNSLs had mutations in the NF-κB gene network, most commonly affecting CD79B (83%), MYD88 (76%), TBL1XR1 (23%), PRDM1 (20%) and CREBBP1 (20%). These mutations, particularly CD79B and MYD88, frequently coincided within each tumour in various combinations, simultaneously affecting diverse pathways within the network. No GBMs had hotspot mutation of CD79B Y196 and MYD88 L265. CONCLUSIONS The prevalence of CD79B and MYD88 mutations in PCNSLs was considerably higher than reported in systemic diffuse large B-cell lymphomas. This observation could reflect the paucity of antigen stimuli from the immune system in the central nervous system (CNS) and the necessity to substitute them by the constitutive activation of CD79B and MYD88 that would initiate the signalling cascades. These hotspot mutations may serve as a genetic hallmark for PCNSL serving as a genetic marker for diagnose and potential targets for molecular therapy.
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Affiliation(s)
- T Nakamura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan.,Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - K Tateishi
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan.,Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - T Niwa
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Y Matsushita
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan
| | - K Tamura
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Kinoshita
- Department of Neurosurgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - K Tanaka
- Department of Neurosurgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - S Fukushima
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - H Takami
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - H Arita
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan.,Department of Neurosurgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - A Kubo
- Department of Neurosurgery, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - T Shuto
- Department of Neurosurgery, Yokohama Rosai Hospital, Yokohama, Japan
| | - M Ohno
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan
| | - Y Miyakita
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan
| | - S Kocialkowski
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - T Sasayama
- Department of Neurosurgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - N Hashimoto
- Department of Neurosurgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - T Maehara
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Shibui
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan
| | - T Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - N Kawahara
- Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Y Narita
- Department of Neurosurgery and Neuro-oncology, National Cancer Center, Tokyo, Japan
| | - K Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
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Takao H, Ishibashi T, Yuki I, Kaku S, Kan I, Nishimura K, Mori R, Watanabe M, Kanbayashi Y, Yeh Y, Irie K, Sakano T, Arita H, Oobatake T, Murayama Y. E-035 new app to support decision making during stroke emergencies: ‘join’. J Neurointerv Surg 2015. [DOI: 10.1136/neurintsurg-2015-011917.110] [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: 11/03/2022]
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Kinoshita M, Tanaka H, Arita H, Goto Y, Oshino S, Watanabe Y, Yoshimine T, Saitoh Y. Pituitary-Targeted Dynamic Contrast-Enhanced Multisection CT for Detecting MR Imaging-Occult Functional Pituitary Microadenoma. AJNR Am J Neuroradiol 2015; 36:904-8. [PMID: 25593201 DOI: 10.3174/ajnr.a4220] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 11/02/2014] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Although resection of a tumor by trans-sphenoidal surgery is considered the criterion standard for successful surgical treatment of functional pituitary microadenoma, MR imaging occasionally fails to visualize and identify the tumor and supplementary imaging modalities are necessary. We tested the possibility of dynamic contrast-enhanced multisection CT of the pituitary gland accompanying image reconstruction of contrast agent dynamics to identify the localizations of microadenomas and compared the diagnostic performance with conventional pituitary-targeted MR imaging. MATERIALS AND METHODS Twenty-eight patients with surgically confirmed functional pituitary microadenomas (including growth hormone-, adrenocorticotropic hormone-, and prolactin-secreting adenomas) who underwent pituitary-targeted dynamic contrast-enhanced multisection CT were retrospectively investigated. We undertook image reconstruction of the dynamics of the contrast agent around the pituitary gland in a voxelwise manner, visualizing any abnormality and enabling qualification of contrast dynamics within the tumor. RESULTS Fifteen cases were correctly diagnosed by MR imaging, while dynamic contrast-enhanced multisection CT correctly diagnosed 26 cases. The accuracy of localization was markedly better for adrenocorticotropic hormone-secreting microadenomas, increasing from 32% on MR imaging to 85% by dynamic contrast-enhanced multisection CT. Compared with the normal pituitary gland, adrenocorticotropic hormone-secreting adenoma showed the least difference in contrast enhancement of the different functional microadenomas. Images acquired at 45-60 seconds after contrast agent injection showed the largest difference in contrast enhancement between an adenoma and the normal pituitary gland. CONCLUSIONS Dynamic contrast-enhanced multisection CT combined with image reconstruction of the contrast-enhanced dynamics holds promise in detecting MR imaging-occult pituitary microadenomas.
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Affiliation(s)
- M Kinoshita
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.) Department of Neurosurgery (M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - H Tanaka
- Radiology (H.T., Y.W.), Osaka University Graduate School of Medicine, Osaka, Japan
| | - H Arita
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.)
| | - Y Goto
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.)
| | - S Oshino
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.)
| | - Y Watanabe
- Radiology (H.T., Y.W.), Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Yoshimine
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.)
| | - Y Saitoh
- From the Departments of Neurosurgery (M.K., H.A., Y.G., S.O., T.Y., Y.S.) Department of Neuromodulation and Neurosurgery (Y.S.), Osaka University Graduate School of Medicine, Center of Medical Innovation and Translational Research, Osaka, Japan.
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Hashimoto N, Chiba Y, Kijima N, Arita H, Kinoshita M, Kagawa N, Tsuboi A, Oka Y, Oji Y, Sugiyama H, Yoshimine T. IT-12 * WT1 PEPTIDE VACCINATION AGAINST GLIOMAS; COMBINATION WITH TEMOZOLOMIDE, BIOMARKERS AND IMMUNOLOGICAL RESPONSE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou258.10] [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: 11/12/2022] Open
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Kinoshita M, Arita H, Kagawa N, Watanabe Y, Hatazawa J, Hashimoto N, Yoshimine T. NI-48 * COMPARISON OF DTI AND 11C-METHIONINE PET FOCUSING ON THEIR PREDICTIVE VALUES OF TUMOR CELL DENSITY IN GLIOMAS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou264.46] [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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Kannan V, Misra BK, Kapadia A, Bajpai R, Deshpande S, Almel S, Sankhe M, Desai K, Shaikh M, Anand V, Kannan A, Teo WY, Ross J, Bollo R, Seow WT, Tan AM, Kang SG, Kim DS, Li XN, Lau CC, Mohila CA, Adesina A, Su J, Ichimura K, Fukushima S, Matsushita Y, Tomiyama A, Niwa T, Suzuki T, Nakazato Y, Mukasa A, Kumabe T, Nagane M, Iuchi T, Mizoguchi M, Tamura K, Sugiyama K, Nakada M, Kanemura Y, Yokogami K, Matsutani M, Shibata T, Nishikawa R, Takami H, Fukushima S, Fukuoka K, Yanagisawa T, Nakamura T, Arita H, Narita Y, Shibui S, Nishikawa R, Ichimura K, Matsutani M, Sands S, Guerry W, Kretschmar C, Donahue B, Allen J, Matsutani M, Nishikawa R, Kumabe T, Sugiyama K, Nakamura H, Sawamura Y, Fujimaki T, Hattori E, Arakawa Y, Kawabata Y, Aoki T, Miyamoto S, Kagawa N, Hirayama R, Fujimoto Y, Chiba Y, Kinoshita M, Takano K, Eino D, Fukuya S, Nakanishi K, Yamamoto F, Hashii Y, Hashimoto N, Hara J, Yoshimine T, Murray M, Bartels U, Nishikawa R, Fangusaro J, Matsutani M, Nicholson J, Sumerauer D, Zapotocky M, Churackova M, Cyprova S, Zamecnik J, Malinova B, Kyncl M, Tichy M, Stary J, Lassen-Ramshad Y, von Oettingen G, Agerbaek M, Ohnishi T, Kohno S, Inoue A, Ohue S, Kohno S, Iwata S, Inoue A, Ohue S, Kumon Y, Ohnishi T, Acharya S, DeWees T, Shinohara E, Perkins S, Kato H, Fuji H, Nakasu Y, Ishida Y, Okawada S, Yang Q, Guo C, Chen Z, Alapetite C, Faure-Conter C, Verite C, Pagnier A, Laithier V, Entz-Werle N, Gorde-Grosjean S, Palenzuela G, Lemoine P, Frappaz D, Nguyen HA, Bui L, Ngoc, Cerbone M, Ederies A, Losa L, Moreno C, Sun K, Spoudeas HA, Nakano Y, Okada K, Kosaka Y, Nagashima T, Hashii Y, Kagawa N, Soejima T, Osugi Y, Sakamoto H, Hara J, Nicholson J, Alapetite C, Kortmann RD, Garre ML, Ricardi U, Saran F, Frappaz D, Calaminus G, Muda Z, Menon B, Ibrahim H, Rahman EJA, Muhamad M, Othman IS, Thevarajah A, Cheng S, Kilday JP, Laperriere N, Drake J, Bouffet E, Bartels U, Sakamoto H, Matsusaka Y, Watanabe Y, Umaba R, Hara J, Osugi Y, Alapetite C, Ruffier-Loubiere A, De Marzi L, Bolle S, Claude L, Habrand JL, Brisse H, Frappaz D, Doz F, Bourdeaut F, Dendale R, Mazal A, Fournier-Bidoz N, Fujimaki T, Fukuoka K, Shirahata M, Suzuki T, Adachi JI, Mishima K, Wakiya K, Matsutani M, Nishikawa R, Fukushima S, Yamashita S, Kato M, Nakamura H, Takami H, Suzuki T, Yanagisawa T, Mukasa A, Kumabe T, Nagane M, Sugiyama K, Tamura K, Narita Y, Shibui S, Shibata T, Ushijima T, Matsutani M, Nishikawa R, Ichimura K, Consortium IGA, Calaminus G, Kortmann RD, Frappaz D, Alapetite C, Garre ML, Ricardi U, Saran FH, Nicholson J, Calaminus G, Kortmann RD, Frappaz D, Alapetite C, Garre ML, Ricardi U, Saran FH, Nicholson J, Czech T, Nicholson J, Frappaz D, Kortmann RD, Alapetite C, Garre ML, Ricardi U, Saran F, Calaminus G, Hayden J, Bartels U, Calaminus G, Joseph R, Nicholson J, Hale J, Lindsay H, Kogiso M, Qi L, Yee TW, Huang Y, Mao H, Lin F, Baxter P, Su J, Terashima K, Perlaky L, Lau C, Parsons D, Chintagumpala M, Li XAN, Osorio D, Vaughn D, Gardner S, Mrugala M, Ferreira M, Keene C, Gonzalez-Cuyar L, Hebb A, Rockhill J, Wang L, Yamaguchi S, Burstein M, Terashima K, Ng HK, Nakamura H, He Z, Suzuki T, Nishikawa R, Natsume A, Terasaka S, Dauser R, Whitehead W, Adesina A, Sun J, Munzy D, Gibbs R, Leal S, Wheeler D, Lau C, Dhall G, Robison N, Judkins A, Krieger M, Gilles F, Park J, Lee SU, Kim T, Choi Y, Park HJ, Shin SH, Kim JY, Robison N, Dhir N, Khamani J, Margol A, Wong K, Britt B, Evans A, Nelson M, Grimm J, Finlay J, Dhall G. GERM CELL TUMOURS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ambady P, Holdhoff M, Ferrigno C, Grossman S, Anderson MD, Liu D, Conrad C, Penas-Prado M, Gilbert MR, Yung AWK, de Groot J, Aoki T, Nishikawa R, Sugiyama K, Nonoguchi N, Kawabata N, Mishima K, Adachi JI, Kurisu K, Yamasaki F, Tominaga T, Kumabe T, Ueki K, Higuchi F, Yamamoto T, Ishikawa E, Takeshima H, Yamashita S, Arita K, Hirano H, Yamada S, Matsutani M, Apok V, Mills S, Soh C, Karabatsou K, Arimappamagan A, Arya S, Majaid M, Somanna S, Santosh V, Schaff L, Armentano F, Harrison C, Lassman A, McKhann G, Iwamoto F, Armstrong T, Yuan Y, Liu D, Acquaye A, Vera-Bolanos E, Diefes K, Heathcock L, Cahill D, Gilbert M, Aldape K, Arrillaga-Romany I, Ruddy K, Greenberg S, Nayak L, Avgeropoulos N, Avgeropoulos G, Riggs G, Reilly C, Banerji N, Bruns P, Hoag M, Gilliland K, Trusheim J, Bekaert L, Borha A, Emery E, Busson A, Guillamo JS, Bell M, Harrison C, Armentano F, Lassman A, Connolly ES, Khandji A, Iwamoto F, Blakeley J, Ye X, Bergner A, Dombi E, Zalewski C, Follmer K, Halpin C, Fayad L, 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Chung A, Wong ET, Wu W, Galanis E, Wen P, Das A, Fine H, Cloughesy T, Sargent D, Yoon WS, Yang SH, Chung DS, Jeun SS, Hong YK, Yust-Katz S, Milbourne A, Diane L, Gilbert M, Armstrong T, Zaky W, Weinberg J, Fuller G, Ketonen L, McAleer MF, Ahmed N, Khatua S, Zaky W, Olar A, Stewart J, Sandberg D, Foresman L, Ketonen L, Khatua S. NEURO/MEDICAL ONCOLOGY. Neuro Oncol 2013; 15:iii98-iii135. [PMCID: PMC3823897 DOI: 10.1093/neuonc/not182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2023] Open
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Arakawa Y, Fujimoto KI, Murata D, Nakamoto Y, Okada T, Miyamoto S, Bahr O, Harter PN, Weise L, You SJ, Ronellenfitsch MW, Rieger J, Steinbach JP, Hattingen E, Bahr O, Jurcoane A, Daneshvar K, Pilatus U, Mittelbronn M, Steinbach JP, Hattingen E, Carrillo J, Bota D, Handwerker J, Su LMY, Chen T, Stathopoulos A, Yu H, Chang JH, Kim EH, Kim SH, Mi, Yun J, Pytel P, Collins J, Choi Y, Lukas R, Nicholas M, Colen R, Jafrani R, Zinn P, Colen R, Ashour O, Zinn P, Colen R, Vangel M, Gutman D, Hwang S, Wintermark M, Jain R, Jilwan-Nicolas M, Chen J, Raghavan P, Holder C, Rubin D, Huang E, Kirby J, Freymann J, Jaffe C, Flanders A, Zinn P, Colen R, Ashour O, Zinn P, Colen R, Zinn P, Dahiya S, Statsevych V, Elson P, Xie H, Chao S, Peereboom D, Stevens G, Barnett G, Ahluwalia M, Daras M, Karimi S, Abrey L, Sanchez J, Beal K, Gutin P, Kaley T, Grommes C, Correa D, Reiner A, Briggs S, Omuro A, Verburg N, Hoefnagels F, Pouwels P, Boellaard R, Barkhof F, Hoekstra O, Wesseling P, Reijneveld J, Heimans J, Vandertop P, Zwinderman K, Hamer HDW, Elinzano H, Kadivar F, Yadav PO, Breese VL, Jackson CL, Donahue JE, Boxerman JL, Ellingson B, Pope W, Lai A, Nghiemphu P, Cloughesy T, Ellingson B, Pope W, Chen W, Czernin J, Phelps M, Lai A, Nghiemphu P, Liau L, Cloughesy T, Ellingson B, Leu K, Tran A, Pope W, Lai A, Nghiemphu P, Harris R, Woodworth D, Cloughesy T, Ellingson B, Pope W, Leu K, Chen W, Czernin J, Phelps M, Lai A, Nghiemphu P, Liau L, Cloughesy T, Ellingson B, Enzmann D, Pope W, Lai A, Nghiemphu P, Liau L, Cloughesy T, Eoli M, Di Stefano AL, Aquino D, Scotti A, Anghileri E, Cuppini L, Prodi E, Finocchiaro G, Bruzzone MG, Fujimoto K, Arakawa Y, Murata D, Nakamoto Y, Okada T, Miyamoto S, Galldiks N, Stoffels G, Filss C, Dunkl V, Rapp M, Sabel M, Ruge MI, Goldbrunner R, Shah NJ, Fink GR, Coenen HH, Langen KJ, Guha-Thakurta N, Langford L, Collet S, Valable S, Constans JM, Lechapt-Zalcman E, Roussel S, Delcroix N, Bernaudin M, Abbas A, Ibazizene E, Barre L, Derlon JM, Guillamo JS, Harris R, Bookheimer S, Cloughesy T, Kim H, Pope W, Yang K, Lai A, Nghiemphu P, Ellingson B, Huang R, Rahman R, Hamdan A, Kane C, Chen C, Norden A, Reardon D, Mukundan S, Wen P, Jafrani R, Zinn P, Colen R, Jafrani R, Zinn P, Colen R, Jancalek R, Bulik M, Kazda T, Jensen R, Salzman K, Kamson D, Lee T, Varadarajan K, Robinette N, Muzik O, Chakraborty P, Barger G, Mittal S, Juhasz C, Kamson D, Barger G, Robinette N, Muzik O, Chakraborty P, Kupsky W, Mittal S, Juhasz C, Kinoshita M, Sasayama T, Narita Y, Kawaguchi A, Yamashita F, Chiba Y, Kagawa N, Tanaka K, Kohmura E, Arita H, Okita Y, Ohno M, Miyakita Y, Shibui S, Hashimoto N, Yoshimine T, Ronan LK, Eskey C, Hampton T, Fadul C, LaMontagne P, Milchenko M, Sylvester P, Benzinger T, Marcus D, Fouke SJ, Lupo J, Bian W, Anwar M, Banerjee S, Hess C, Chang S, Nelson S, Mabray M, Sanchez L, Valles F, Barajas R, Rubenstein J, Cha S, Miyake K, Ogawa D, Hatakeyama T, Kawai N, Tamiya T, Mori K, Ishikura R, Tomogane Y, Ando K, Izumoto S, Nelson S, Lieberman F, Lupo J, Viziri S, Nabors LB, Crane J, Wen P, Cote A, Peereboom D, Wen Q, Cloughesy T, Robins HI, Fisher J, Desideri S, Grossman S, Ye X, Blakeley J, Nonaka M, Nakajima S, Shofuda T, Kanemura Y, Nowosielski M, Wiestler B, Gobel G, Hutterer M, Schlemmer H, Stockhammer G, Wick W, Bendszus M, Radbruch A, Perreault S, Yeom K, Ramaswamy V, Shih D, Remke M, Luu B, Schubert S, Fisher P, Partap S, Vogel H, Poussaint TY, Taylor M, Cho YJ, Piludu F, Pace A, Fabi A, Anelli V, Villani V, Carapella C, Marzi S, Vidiri A, Pungavkar S, Tanawde P, Epari S, Patkar D, Lawande M, Moiyadi A, Gupta T, Jalali R, Rahman R, Akgoz A, You H, Hamdan A, Seethamraju R, Wen P, Young G, Rao A, Rao G, Flanders A, Ghosh P, Rao G, Martinez J, Rao A, Roh TH, Kim EH, Chang JH, Kushnirsky M, Katz J, Knisely J, Schulder M, Steinklein J, Rosen L, Warshall C, Nguyen V, Tiwari P, Rogers L, Wolansky L, Sloan A, Barnholtz-Sloan J, Tatsauka C, Cohen M, Madabhushi A, Rachinger W, Thon N, Haug A, Schuller U, Schichor C, Tonn JC, Tran A, Lai A, Li S, Pope W, Teixeira S, Harris R, Woodworth D, Nghiemphu P, Cloughesy T, Ellingson B, Villanueva-Meyer J, Barajas R, Mabray M, Barani I, Chen W, Shankaranarayanan A, Koon P, Cha S, Wen Q, Elkhaled A, Essock-Burns E, Molinaro A, Phillips J, Chang S, Cha S, Nelson S, Wolf D, Ye X, Lim M, Zhu H, Wang M, Quinones-Hinojosa A, Weingart J, Olivi A, van Zijl P, Laterra J, Zhou J, Blakeley J, Zakaria R, Das K, Sluming V, Bhojak M, Walker C, Jenkinson MD, (Tiger) Yuan S, Tao R, Yang G, Chen Z, Mu D, Zhao S, Fu Z, Li W, Yu J. RADIOLOGY. Neuro Oncol 2013; 15:iii191-iii205. [PMCID: PMC3823904 DOI: 10.1093/neuonc/not189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2023] Open
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Agarwal M, Nitta R, Dovat S, Li G, Arita H, Narita Y, Fukushima S, Tateishi K, Matsushita Y, Yoshida A, Miyakita Y, Ohno M, Collins VP, Kawahara N, Shibui S, Ichimura K, Kahn SA, Gholamin S, Junier MP, Chneiweiss H, Weissman I, Mitra S, Cheshier S, Avril T, Hamlat A, Le Reste PJ, Mosser J, Quillien V, Carrato C, Munoz-Marmol A, Serrano L, Pijuan L, Hostalot C, Villa SL, Ariza A, Etxaniz O, Balana C, Benveniste ET, Zheng Y, McFarland B, Drygin D, Bellis S, Bredel M, Lotsch D, Engelmaier C, Allerstorfer S, Grusch M, Pichler J, Weis S, Hainfellner J, Marosi C, Spiegl-Kreinecker S, Berger W, Bronisz A, Nowicki MO, Wang Y, Ansari K, Chiocca EA, Godlewski J, Brown K, Kwatra M, Brown K, Kwatra M, Bui T, Nitta R, Li G, Zhu S, Kozono D, Li J, Kushwaha D, Carter B, Chen C, Schulte J, Srikanth M, Das S, Zhang J, Lathia J, Yin L, Rich J, Olson E, Kessler J, Chenn A, Cherry A, Haas B, Lin YH, Ong SE, Stella N, Cifarelli CP, Griffin RJ, Cong D, Zhu W, Shi Y, Clark P, Kuo J, Hu S, Sun D, Bookland M, Darbinian N, Dey A, Robitaille M, Remke M, Faury D, Maier C, Malhotra A, Jabado N, Taylor M, Angers S, Kenney A, Ren X, Zhou H, Schur M, Baweja A, Singh M, Erdreich-Epstein A, Fu J, Koul D, Yao J, Saito N, Zheng S, Verhaak R, Lu Z, Yung WKA, Gomez G, Volinia S, Croce C, Brennan C, Cavenee W, Furnari F, Lopez SG, Qu D, Petritsch C, Gonzalez-Huarriz M, Aldave G, Ravi D, Rubio A, Diez-Valle R, Marigil M, Jauregi P, Vera B, Rocha AADL, Tejada-Solis S, Alonso MM, Gopal U, Isaacs J, Gruber-Olipitz M, Dabral S, Ramkissoon S, Kung A, Pak E, Chung J, Theisen M, Sun Y, Monrose V, Franchetti Y, Sun Y, Shulman D, Redjal N, Tabak B, Beroukhim R, Zhao J, Buonamici S, Ligon K, Kelleher J, Segal R, Haas B, Canton D, Diaz P, Scott J, Stella N, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Okazaki T, Fujihara T, Nakajima K, Mure H, Kuwayama K, Hara T, Nagahiro S, Hill L, Botfield H, Hossain-Ibrahim K, Logan A, Cruickshank G, Liu Y, Gilbert M, Kyprianou N, Rangnekar V, Horbinski C, Hu Y, Vo C, Li Z, Ke C, Ru N, Hess KR, Linskey ME, Zhou YAH, Hu F, Vinnakota K, Wolf S, Kettenmann H, Jackson PJ, Larson JD, Beckmann DA, Moriarity BS, Largaespada DA, Jalali S, Agnihotri S, Singh S, Burrell K, Croul S, Zadeh G, Kang SH, Yu MO, Song NH, Park KJ, Chi SG, Chung YG, Kim SK, Kim JW, Kim JY, Kim JE, Choi SH, Kim TM, Lee SH, Kim SK, Park SH, Kim IH, Park CK, Jung HW, Koldobskiy M, Ahmed I, Ho G, Snowman A, Raabe E, Eberhart C, Snyder S, Agnihotri S, Gugel I, Remke M, Bornemann A, Pantazis G, Mack S, Shih D, Sabha N, Taylor M, Tatagiba M, Zadeh G, Krischek B, Schulte A, Liffers K, Kathagen A, Riethdorf S, Westphal M, Lamszus K, Lee JS, Xiao J, Patel P, Schade J, Wang J, Deneen B, Erdreich-Epstein A, Song HR, Leiss L, Gjerde C, Saed H, Rahman A, Lellahi M, Enger PO, Leung R, Gil O, Lei L, Canoll P, Sun S, Lee D, Ho ASW, Pu JKS, Zhang XQ, Lee NP, Dat PJR, Leung GKK, Loetsch D, Steiner E, Holzmann K, Spiegl-Kreinecker S, Pirker C, Hlavaty J, Petznek H, Hegedus B, Garay T, Mohr T, Sommergruber W, Grusch M, Berger W, Lukiw WJ, Jones BM, Zhao Y, Bhattacharjee S, Culicchia F, Magnus N, Garnier D, Meehan B, McGraw S, Hashemi M, Lee TH, Milsom C, Gerges N, Jabado N, Trasler J, Pawlinski R, Mackman N, Rak J, Maherally Z, Thorne A, An Q, Barbu E, Fillmore H, Pilkington G, Maherally Z, Tan SL, Tan S, An Q, Fillmore H, Pilkington G, Malhotra A, Choi S, Potts C, Ford DA, Nahle Z, Kenney AM, Matlaf L, Khan S, Zider A, Singer E, Cobbs C, Soroceanu L, McFarland BC, Hong SW, Rajbhandari R, Twitty GB, Gray GK, Yu H, Benveniste EN, Nozell SE, Minata M, Kim S, Mao P, Kaushal J, Nakano I, Mizowaki T, Sasayama T, Tanaka K, Mizukawa K, Nishihara M, Nakamizo S, Tanaka H, Kohta M, Hosoda K, Kohmura E, Moeckel S, Meyer K, Leukel P, Bogdahn U, Riehmenschneider MJ, Bosserhoff AK, Spang R, Hau P, Mukasa A, Watanabe A, Ogiwara H, Saito N, Aburatani H, Mukherjee J, Obha S, See W, Pieper R, Nakajima K, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Fujihara T, Otsuka R, Kung D, Nagahiro S, Rajbhandari R, Sinha T, Meares G, Benveniste EN, Nozell S, Ott M, Litzenburger U, Rauschenbach K, Bunse L, Pusch S, Ochs K, Sahm F, Opitz C, von Deimling A, Wick W, Platten M, Peruzzi P, Chiocca EA, Godlewski J, Read R, Fenton T, Gomez G, Wykosky J, Vandenberg S, Babic I, Iwanami A, Yang H, Cavenee W, Mischel P, Furnari F, Thomas J, Ronellenfitsch MW, Thiepold AL, Harter PN, Mittelbronn M, Steinbach JP, Rybakova Y, Kalen A, Sarsour E, Goswami P, Silber J, Harinath G, Aldaz B, Fabius AWM, Turcan S, Chan TA, Huse JT, Sonabend AM, Bansal M, Guarnieri P, Lei L, Soderquist C, Leung R, Yun J, Kennedy B, Sisti J, Bruce S, Bruce R, Shakya R, Ludwig T, Rosenfeld S, Sims PA, Bruce JN, Califano A, Canoll P, Stockhausen MT, Kristoffersen K, Olsen LS, Poulsen HS, Stringer B, Day B, Barry G, Piper M, Jamieson P, Ensbey K, Bruce Z, Richards L, Boyd A, Sufit A, Burleson T, Le JP, Keating AK, Sundstrom T, Varughese JK, Harter P, Prestegarden L, Petersen K, Azuaje F, Tepper C, Ingham E, Even L, Johnson S, Skaftnesmo KO, Lund-Johansen M, Bjerkvig R, Ferrara K, Thorsen F, Takeshima H, Yamashita S, Yokogami K, Mizuguchi S, Nakamura H, Kuratsu J, Fukushima T, Morishita K, Tanaka H, Sasayama T, Tanaka K, Nakamizo S, Mizukawa K, Kohmura E, Tang Y, Vaka D, Chen S, Ponnuswami A, Cho YJ, Monje M, Tateishi K, Narita Y, Nakamura T, Cahill D, Kawahara N, Ichimura K, Tiemann K, Hedman H, Niclou SP, Timmer M, Tjiong R, Rohn G, Goldbrunner R, Timmer M, Tjiong R, Stavrinou P, Rohn G, Perrech M, Goldbrunner R, Tokita M, Mikheev S, Sellers D, Mikheev A, Kosai Y, Rostomily R, Tritschler I, Seystahl K, Schroeder JJ, Weller M, Wade A, Robinson AE, Phillips JJ, Gong Y, Ma Y, Cheng Z, Thompson R, Wang J, Fan QW, Cheng C, Gustafson W, Charron E, Zipper P, Wong R, Chen J, Lau J, Knobbe-Thosen C, Weller M, Jura N, Reifenberger G, Shokat K, Weiss W, Wu S, Fu J, Zheng S, Koul D, Yung WKA, Wykosky J, Hu J, Taylor T, Villa GR, Gomez G, Mischel PS, Gonias SL, Cavenee W, Furnari F, Yamashita D, Kondo T, Takahashi H, Inoue A, Kohno S, Harada H, Ohue S, Ohnishi T, Li P, Ng J, Yuelling L, Du F, Curran T, Yang ZJ, Zhu D, Castellino RC, Van Meir EG, Zhu W, Begum G, Wang Q, Clark P, Yang SS, Lin SH, Kahle K, Kuo J, Sun D. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not174] [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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Arita H. [The neuroscience of suicide]. Brain Nerve 2012; 64:929-935. [PMID: 22868884] [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
Various postmortem brain studies have provided evidence that reduced serotonin (5-HT) transmission in the ventrolateral prefrontal cortex (vlPFC) is associated with depression-related suicide. Suicide victims have fewer 5-HT transporter sites and a large number of postsynaptic 5-HT1A and 5-HT receptors in the vlPFC, which are implicated in behavioral inhibition and impulsivity. These could be compensatory changes in response to 5-HT hypofunction in depression and suicide. Selective serotonin reuptake inhibitors (SSRIs) are commonly used for the treatment of depression and suicidal ideation. 5-HT innervation of the PFC arises predominantly from 5-HT neurons in the brainstem dorsal raphe nucleus (DRN). In the DRN of suicide cases, 5-HT1A autoreceptors are increased and the levels of 5-HT biosynthetic enzyme, tryptophan hydroxylase (TPH), are reduced. Reduced 5-HT1A feedback inhibition and increased TPH may reflect compensatory changes in response to 5-HT hypofunction in depression-related suicide. Genetic polymorphisms in TPH, 5-HT transporter (5-HTTLPR allele), and 5-HT2A receptor were examined for their association with depression-related suicide, but no consistent associations were found. Stress is a risk factor for depression and is linked to hyperactivity of the hypothalamo-pituitary-adrenal axis and suicide. Corticotropin-releasing factor (CRF)-immunoreactive varicose fibers were detected in the DRN of suicide victims, suggesting that CRF neurons in the paraventricular nucleus of the hypothalamus and 5-HT neurons in the DRN may form a circuit in stress-induced depression. Alcoholics are at a significantly greater risk of suicide than the general population. Alcoholism is associated with alterations in the 5-HT system.
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Affiliation(s)
- Hideho Arita
- Department of Physiology, Toho University School of Medicine, Japan
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Kim JH, Song HB, Kim DH, Park KD, Kim JH, Kim JH, Lee BJ, Kim DH, Kim JH, Khatua S, Kalkan E, Brown R, Pearlman M, Vats T, Abela L, Fiaschetti G, Shalaby T, Grunder E, Ma M, Grahlert J, Baumgartner M, Siler U, Nonoguchi N, Ohgaki H, Grotzer M, Adachi JI, Suzuki T, Fukuoka K, Yanagisawa T, Mishima K, Koga T, Matsutani M, Nishikawa R, Sardi I, Giunti L, Bresci C, Cardellicchio S, Da Ros M, Buccoliero AM, Farina S, Arico M, Genitori L, Massimino M, Filippi L, Erdreich-Epstein A, Zhou H, Ren X, Schur M, Davidson TB, Ji L, Sposto R, Asgharzadeh S, Tong Y, White E, Murugesan M, Nimmervoll B, Wang M, Marino D, Ellison D, Finkelstein D, Pounds S, Malkin D, Gilbertson R, Eden C, Ju B, Murugesan M, Phoenix T, Poppleton H, Lessman C, Taylor M, Gilbertson R, Sardi I, la Marca G, Cardellicchio S, Da Ros M, Malvagia S, Giunti L, Fratoni V, Farina S, Arico M, Genitori L, Massimino M, Giovannini MG, Giangaspero F, Badiali M, Gleize V, Paris S, Moi L, Elhouadani S, Arcella A, Morace R, Antonelli M, Buttarelli F, Mokhtari K, Sanson M, Smith S, Ward J, Wilson M, Rahman C, Rose F, Peet A, Macarthur D, Grundy R, Rahman R, Venkatraman S, Birks D, Balakrishnan I, Alimova I, Harris P, Patel P, Foreman N, Vibhakar R, Wu H, Zhou Q, Wang D, Wang G, Dang D, Pencreach E, Nguyen A, Guerin E, Lasthaus C, Guenot D, Entz-Werle N, Unland R, Schlosser S, Farwick N, Plagemann T, Richter G, Juergens H, Fruehwald M, Chien CL, Lee YH, Lin CI, Hsieh JY, Lin SC, Wong TT, Ho DMT, Wang HW, Lagah S, Tan IL, Malcolm S, Grundy R, Rahman R, Majani Y, Smith S, Grundy R, Rahman R, van Vuurden DG, Aronica E, Wedekind LE, Hulleman E, Biesmans D, Bugiani M, Vandertop WP, Kaspers GJL, Wurdinger T, Noske DP, Van der Stoop PM, van Vuurden DG, Shukla S, Wedekind LE, Kuipers GK, Hulleman E, Noske DP, Wurdinger T, Vandertop WP, Slotman BJ, Kaspers GJL, Cloos J, Sun T, Warrington N, Luo J, Ganzhorn S, Tabori U, Druley T, Gutmann D, Rubin J, Castelo-Branco P, Choufani S, Mack S, Galagher D, Zhang C, Lipman T, Zhukova N, Martin D, Merino D, Wasserman J, Samuel C, Alon N, Hitzler J, Wang JCY, Malkin D, Keller G, Dirks PB, Pfister S, Taylor MD, Weksberg R, Tabori U, Leblond P, Meignan S, Dewitte A, Le Tinier F, Wattez N, Lartigau E, Lansiaux A, Hanson R, Gordon I, Zhao S, Camphausen K, Warren K, Warrington NM, Sun T, Gutmann DH, Rubin JB, Nguyen A, Lasthaus C, Jaillet M, Pencreach E, Guerin E, Guenot D, Entz-Werle N, Kovacs Z, Martin-Fiori E, Shalaby T, Grotzer M, Bernasconi M, Werner B, Dyberg C, Baryawno N, Milosevic J, Wickstrom M, Northcott PA, Taylor MD, Kool M, Kogner P, Johnsen JI, Wilson M, Reynolds G, Davies N, Arvanitis T, Peet A, Zoghbi A, Meisterernst M, Fruehwald MC, Kerl K, Orr B, Haffner M, Nelson W, Yegnasubramanian S, Eberhart C, Fotovati A, Abu-Ali S, Wang PS, Deleyrolle L, Lee C, Triscott J, Chen J, Franciosi S, Nakamura Y, Sugita Y, Uchiumi T, Kuwano M, Leavitt B, Singh S, Jury A, Jones C, Wakimoto H, Reynolds B, Pallen C, Dunn S, Fletcher S, Levine J, Li M, Kagawa N, Hirayama R, Chiba Y, Kijima N, Arita H, Kinoshita M, Hashimoto N, Izumoto S, Maruno M, Yoshimine T. BIOLOGY. Neuro Oncol 2012; 14:i7-i15. [PMCID: PMC3483341 DOI: 10.1093/neuonc/nos095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
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Yang QY, Chen ZP, Hayase T, Gomi A, Higaki A, Kawahara Y, Kobari T, Fukuda T, Kashii Y, Morimoto A, Sakatani T, Momoi MY, Murray M, Hale J, Heinemann K, Saran F, Calaminus G, Nicholson J, Murray M, Heinemann K, Hale J, Saran F, Nicholson J, Calaminus G, Martinez S, Khakoo Y, Gilheeney S, Kramer K, Wolden S, Souweidane M, Dunkel I, Brichtova E, Pavelka Z, Bobekova A, Magnova O, Kren L, Svoboda T, Sprlakova A, Slampa P, Zitterbart K, Sterba J, Campen CJ, Ashby D, Fisher PG, Monje M, Dagri J, Torkildson J, Cheng J, Wang RX, Yock T, Banerjee A, Dhall G, Finlay J, Yanagisawa T, Fukuoka K, Suzuki T, Kohga T, Wakiya K, Adachi J, Mishima K, Fujimaki T, Matsutani M, Nishikawa R, Matsutani M, Calaminus G, Frappaz D, Kortmann RD, Alapetite C, Garre ML, Ricardi U, Saran FH, Nicholson J, Calaminus G, Nicholson J, Alapetite C, Kortmann RD, Garre ML, Ricardi U, Saran FH, Frappaz D, Czech T, Nicholson J, Frappaz D, Kortmann RD, Alapetite C, Garre ML, Ricardi U, Saran FH, Calaminus G, Walker R, Hale J, Koga T, Suzuki T, Nishikawa R, Yanagisawa T, Fukuoka K, Matsutani M, Legault G, Allen J, Geludkova O, Mushinskaya M, Kushel Y, Korshunov A, Melikyan A, Shishkina L, Oserova V, Oserov S, Maserkina N, Borodina I, Kumirova E, Boyarchuk N, Gorbatyh S, Popova E, Sherbenko O, Zelinskaya N, Shammasov R, Privalova L, Chulkov O, Kosel Y, Cappellano AM, Paiva P, Cavalheiro S, Dastoli P, Seixas MT, Silva NS, Chan GCF, Shing MMK, Yuen HL, Li RCH, Li CK, Ha SY, Li CK, Chen HH, Chang FC, Chen YW, Wong TT, Yarascavitch B, Stein N, Ribeiro L, Whitton A, Duckworth J, Scheinemann K, Singh S, Geludkova O, Shishkina L, Ozerov S, Gorelyshev S, Maserkina N, Trunin Y, Mushinskaya M, Boyarchuk N, Borodina I, Kagawa N, Fujimoto Y, Hirayama R, Chiba Y, Kijima N, Arita H, Kinoshita M, Hashimoto N, Maruno M, Yoshimine T, Guerra GP, Oscanoa M, Cavero L, Yabar A, Ugarte E, Trivedi M, Tyagi A, Goodden J, Chumas P, Elliott M, Picton S, Robison N, Prabhu S, Sun P, Chi S, Kieran M, Manley P, Cohen L, Goumnerova L, Smith E, Scott M, London W, Ullrich NJ. GERM CELL TUMORS. Neuro Oncol 2012; 14:i49-i55. [PMCID: PMC3483347 DOI: 10.1093/neuonc/nos101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2023] Open
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Kamiya K, Fumoto M, Kikuchi H, Sekiyama T, Umino M, Arita H. 927 GUM CHEWING EVOKES ACTIVATION OF VENTRAL PREFRONTAL CORTEX AND SUPPRESSION OF NOCICEPTIVE RESPONSES: INVOLVEMENT OF BRAIN SEROTONERGIC SYSTEM. Eur J Pain 2012. [DOI: 10.1016/s1090-3801(09)60930-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- K. Kamiya
- Anesthesiology and Clinical Physiology, Department of Oral Health Sciences, Graduate School, Tokyo Medical Dental University, Tokyo, Japan
- Department Physiology, Toho University School of Medicine, Tokyo, Japan
| | - M. Fumoto
- Department Physiology, Toho University School of Medicine, Tokyo, Japan
| | - H. Kikuchi
- Department Physiology, Toho University School of Medicine, Tokyo, Japan
| | - T. Sekiyama
- Department Physiology, Toho University School of Medicine, Tokyo, Japan
| | - M. Umino
- Anesthesiology and Clinical Physiology, Department of Oral Health Sciences, Graduate School, Tokyo Medical Dental University, Tokyo, Japan
| | - H. Arita
- Department Physiology, Toho University School of Medicine, Tokyo, Japan
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Bluml S, Panigrahy A, Laskov M, Dhall G, Nelson MD, Finlay JL, Gilles FH, Arita H, Kinoshita M, Kagawa N, Fujimoto Y, Hashimoto N, Yoshimine T, Kinoshita M, Arita H, Kagawa N, Fujimoto Y, Hashimoto N, Yoshimine T, Hamilton JD, Wang J, Levin VA, Hou P, Loghin ME, Gilbert MR, Leeds NE, deGroot JF, Puduvalli V, Jackson EF, Yung WKA, Kumar AJ, Ellingson BM, Cloughesy TF, Pope WB, Zaw T, Phillips H, Lalezari S, Nghiemphu PL, Ibrahim H, Motevalibashinaeini K, Lai A, Ellingson BM, Cloughesy TF, Zaw T, Harris R, Lalezari S, Nghiemphu PL, Motevalibashinaeini K, Lai A, Pope WB, Douw L, Van de Nieuwenhuijzen ME, Heimans JJ, Baayen JC, Stam CJ, Reijneveld JC, Juhasz C, Mittal S, Altinok D, Robinette NL, Muzik O, Chakraborty PK, Barger GR, Ellingson BM, Cloughesy TF, Zaw TM, Lalezari S, Nghiemphu PL, Motevalibashinaeini K, Lai A, Goldin J, Pope WB, Ellingson BM, Cloughesy TF, Harris R, Pope WB, Nghiemphu PL, Lai A, Zaw T, Chen W, Ahlman MA, Giglio P, Kaufmann TJ, Anderson SK, Jaeckle KA, Uhm JH, Northfelt DW, Flynn PJ, Buckner JC, Galanis E, Zalatimo O, Weston C, Allison D, Bota D, Kesari S, Glantz M, Sheehan J, Harbaugh RE, Chiba Y, Kinoshita M, Kagawa N, Fujimoto Y, Tsuboi A, Hatazawa J, Sugiyama H, Hashimoto N, Yoshimine T, Nariai T, Toyohara J, Tanaka Y, Inaji M, Aoyagi M, Yamamoto M, Ishiwara K, Ohno K, Jalilian L, Essock-Burns E, Cha S, Chang S, Prados M, Butowski N, Nelson S, Kawahara Y, Nakada M, Hayashi Y, Kai Y, Hayashi Y, Uchiyama N, Kuratsu JI, Hamada JI, Yeom K, Rosenberg J, Andre JB, Fisher PG, Edwards MS, Barnes PD, Partap S, Essock-Burns E, Jalilian L, Lupo JM, Crane JC, Cha S, Chang SM, Nelson SJ, Romanowski CA, Hoggard N, Jellinek DA, Clenton S, McKevitt F, Wharton S, Craven I, Buller A, Waddle C, Bigley J, Wilkinson ID, Metherall P, Eckel LJ, Keating GF, Wetjen NM, Giannini C, Wetmore C, Jain R, Narang J, Arbab AS, Schultz L, Scarpace L, Mikkelsen T, Babajni-Feremi A, Jain R, Poisson L, Narang J, Scarpace L, Gutman D, Jaffe C, Saltz J, Flanders A, Daniel B, Mikkelsen T, Zach L, Guez D, Last D, Daniels D, Hoffman C, Mardor Y, Guha-Thakurta N, Debnam JM, Kotsarini C, Wilkinson ID, Jellinek D, Griffiths PD, Khandanpour N, Hoggard N, Kotsarini C, Wilkinson ID, Jellinek D, Griffiths PD, Bambrough P, Hoggard N, Hamilton JD, Levin VA, Hou P, Prabhu S, Loghin ME, Gilbert MR, Bassett RL, Wang J, Yung WA, Jackson EF, Kumar AJ, Campen CJ, Soman S, Fisher PG, Edwards MS, Yeom KW, Vos MJ, Berkhof J, Postma TJ, Sanchez E, Sizoo EM, Heimans JJ, Lagerwaard FJ, Buter J, Noske DP, Reijneveld JC, Colen RR, Mahajan B, Jolesz FA, Zinn PO, Lupo JM, Molinaro A, Chang S, Lawton K, Cha S, Nelson SJ, Alexandru D, Bota D, Linskey ME, Chaumeil MM, Gini B, Yang H, Iwanami A, Subramanian S, Ozawa T, Read EJ, Pieper RO, Mischel P, James CD, Ronen SM, LaViolette PS, Cochran E, Al-Gizawiy M, Connelly JM, Malkin MG, Rand SD, Mueller WM, Schmainda KM, LaViolette PS, Cohen AD, Cochran E, Prah M, Hartman CJ, Connelly JM, Rand SD, Malkin MG, Mueller WM, Schmainda KM, Qiao XJ, He R, Brown M, Goldin J, Cloughesy T, Pope WB. RADIOLOGY. Neuro Oncol 2011; 13:iii136-iii144. [PMCID: PMC3222969 DOI: 10.1093/neuonc/nor162] [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: 10/10/2023] Open
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Terayama Y, Arita H, Ishikawa T, Kikuchi M, Mitamura K, Kobayashi M, Yamada NL, Takahara A. Chain dimensions in free and immobilized brush states of polysulfobetaine in aqueous solution at various salt concentrations. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/272/1/012010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Takeshi K, Nemoto T, Fumoto M, Arita H, Mizuno M. Reduced prefrontal cortex activation during divergent thinking in schizophrenia: a multi-channel NIRS study. Prog Neuropsychopharmacol Biol Psychiatry 2010; 34:1327-32. [PMID: 20673784 DOI: 10.1016/j.pnpbp.2010.07.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 06/30/2010] [Accepted: 07/20/2010] [Indexed: 11/17/2022]
Abstract
Relationships between deficits in verbal fluency and poor social functioning have been revealed in patients with schizophrenia. In previous studies, we demonstrated that deficits in idea fluency, which is ranked as a more complex type of verbal fluency and reflects divergent thinking ability, were more closely related to social dysfunction than deficits in simple word fluency. Although functional neuroimaging studies have provided detailed data regarding prefrontal dysfunction during word fluency tasks, the regions that relate to deficits in fluency of ideas and thoughts have not yet been clarified in schizophrenia patients. The purpose of the present study was to identify the prefrontal sub-regions responsible for deficits in idea fluency using near-infrared spectroscopy (NIRS), which is more practical than other imaging methods, and to investigate the relationships between lesions and idea fluency deficits and social dysfunction in patients with schizophrenia. Eighteen outpatients with schizophrenia and 16 healthy subjects were recruited for this case-controlled study. Using 24-channel NIRS, we measured changes in hemoglobin concentration in the prefrontal cortical surface area during idea and letter fluency tests. The analyses revealed that schizophrenia patients generally exhibited a smaller increase in the concentration of oxyhemoglobin in the frontopolar region than the controls during both the tests. However, the areas in which reduced activations were demonstrated in the patients differed remarkably between the idea and letter fluency tests: reduced activations were observed in the ventral region during the former test and in the dorsal region of the frontopolar cortex during the latter test. The reduced activations in each sub-region appeared to affect the related cognitive impairment, since the patients showed significant poorer performances than the controls on both the tests. Moreover, hypoactivity during idea fluency was significantly correlated with poor social functioning as assessed using the Global Assessment of Functioning (GAF) in the patient group. The results of the present study suggest that the ventral region within the frontopolar cortex is responsible for divergent thinking, which is associated with poor social functioning in patients with schizophrenia.
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Affiliation(s)
- Kiyoaki Takeshi
- Department of Neuropsychiatry, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
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Kikuchi H, Nakatani Y, Seki Y, Yu X, Sekiyama T, Sato-Suzuki I, Arita H. Decreased blood serotonin in the premenstrual phase enhances negative mood in healthy women. J Psychosom Obstet Gynaecol 2010; 31:83-9. [PMID: 20384471 DOI: 10.3109/01674821003770606] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The purpose of this study was to evaluate mechanisms underlying the action of selective serotonin reuptake inhibitors on the improvement of negative mood symptoms in premenstrual syndrome. We assessed relationships between serotonin (5-HT) levels in the brain (estimated from 5-HT concentrations in whole blood) and negative mood states during the premenstrual phase in 13 healthy women. Mood states were evaluated using the Profile of Mood States questionnaire. We also evaluated relationships between 5-HT and ovarian hormones (oestradiol and progesterone). A significant negative correlation was seen between 5-HT concentrations in whole blood and negative mood scores (tension-anxiety and fatigue) observed in the premenstrual phase. A significant positive correlation was observed between 5-HT and oestradiol in the premenstrual phase, but not in the follicular phase. These results suggest that healthy women with lower whole blood 5-HT concentrations in the premenstrual phase exhibit enhanced negative mood due to lower 5-HT concentrations at brain synapses, which may be caused in part by lower oestrogen concentration.
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Affiliation(s)
- Hiromi Kikuchi
- Department of Physiology, Toho University School of Medicine, Ota-ku, Tokyo, Japan
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Fumoto M, Oshima T, Kamiya K, Kikuchi H, Seki Y, Nakatani Y, Yu X, Sekiyama T, Sato-Suzuki I, Arita H. Ventral prefrontal cortex and serotonergic system activation during pedaling exercise induces negative mood improvement and increased alpha band in EEG. Behav Brain Res 2010; 213:1-9. [PMID: 20412817 DOI: 10.1016/j.bbr.2010.04.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 04/07/2010] [Accepted: 04/13/2010] [Indexed: 10/19/2022]
Abstract
This study evaluates a possible involvement of the prefrontal cortex (PFC) and serotonergic (5-HT) system in psychiatric and electroencephalography (EEG) changes during and after pedaling exercise (PE). The subjects performed PE for 15 min using a cycle ergometer. PE rate was kept at 60 rpm, and the work load (93+/-5.4 W) was decided for each subject before the experiment based on a Rating of Perceived Exertion of 12-13 for self-selected exercise intensity. Cerebral oxygenation in the PFC was assessed by concentration changes in oxygenated hemoglobin (oxyHb) using 24-channel near-infrared spectroscopy. We found that PE evoked a significant increase in oxyHb levels in the ventral PFC during PE as compared with that in the dorsal PFC. Subjects had a feeling of reduced negative mood accompanied by a tendency of increased vigor-activity after PE, as assessed by the Profile of Mood States (POMS) questionnaire. Because the ventral PFC is associated with mood state, we hypothesized that the observed mood changes may have been induced by the activation of the ventral PFC. As for EEG changes during and after PE, we found a significant increase in the relative powers of high-frequency alpha bands (10-13 Hz) during and after PE. A significant increase in whole blood 5-HT level was obtained after PE. Because cortical attenuation would be caused by the 5-HT-induced inhibition of the basal forebrain, we hypothesized that the observed EEG changes are linked with the increased blood 5-HT level or an augmentation of the 5-HT system in the brainstem.
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Affiliation(s)
- Masaki Fumoto
- Department of Physiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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Kamiya K, Fumoto M, Kikuchi H, Sekiyama T, Mohri-Lkuzawa Y, Umino M, Arita H. Prolonged gum chewing evokes activation of the ventral part of prefrontal cortex and suppression of nociceptive responses: involvement of the serotonergic system. J Med Dent Sci 2010; 57:35-43. [PMID: 20437764] [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
We have proposed a concept that prolonged rhythmic gum chewing causes a suppressed nociceptive flexion reflex via the serotonergic (5-HT) descending inhibitory pathway. However, the mechanism of activation of the 5-HT system by gum chewing remains undetermined. Several human and animal studies have reported that a direct connection exists between the prefrontal cortex (PFC) and 5-HT neurons in the dorsal raphe nucleus; therefore, we hypothesized that activation of the PFC region might be responsible for augmented 5-HT activity. To evaluate this hypothesis, oxygenated hemoglobin (oxyHb) and deoxygenated hemoglobin concentrations in the PFC were measured in the PFC during a 20-min time period of gum chewing using 24-channel near-infrared spectroscopy. A significant increase in oxyHb level was observed in the ventral part of PFC compared with the dorsal part of PFC. We confirmed the previous results in that the nociceptive flexion reflex was significantly suppressed and the 5-HT level in blood was significantly increased following prolonged gum chewing. These results support the hypothesis that activation of the ventral part of PFC during gum chewing evokes augmented activity of 5-HT neurons in the dorsal raphe nucleus, which in turn suppress nociceptive responses.
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Affiliation(s)
- Kiyoshi Kamiya
- Anesthesiology and Clinical Physiology, Department of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
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Sekiyama T, Nakatani Y, Fumoto M, Kikuchi H, Yu X, Arita H. Meta-analysis of whole blood serotonin levels at resting state in healthy subjects. Neurosci Res 2010. [DOI: 10.1016/j.neures.2010.07.2094] [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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27
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Nakatani Y, Nakagawa I, Sekiyama T, Seki Y, Kikuchi H, Yu X, Sato-Suzuki I, Arita H. Tapping touch improves negative mood via serotonergic system. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.1381] [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: 10/20/2022]
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28
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Nakatani Y, Sato-Suzuki I, Tsujino N, Nakasato A, Seki Y, Fumoto M, Arita H. Augmented brain 5-HT crosses the blood-brain barrier through the 5-HT transporter in rat. Eur J Neurosci 2008; 27:2466-72. [PMID: 18445233 DOI: 10.1111/j.1460-9568.2008.06201.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present study re-evaluated an existing notion that serotonin (5-hydroxytryptamine; 5-HT) could not cross the brain to the circulating blood via the blood-brain barrier (BBB). To elevate brain 5-HT alone, 5-hydroxytryptophan (5-HTP; 30-75 mg/kg) was administrated intravenously to anaesthetized rats that had undergone gastrointestinal and kidney resections along with liver inactivation (organs contributing to increasing blood 5-HT after 5-HTP administration). A microdialysis method and HPLC system were used to determine the brain 5-HT levels in samples collected from the frontal cortex. Blood 5-HT levels were determined from whole blood, not platelet-poor plasma, collected from the central vein. We found that blood 5-HT levels showed a significant augmentation whenever brain 5-HT levels were significantly elevated after the administration of 5-HTP in those rats with the abdominal surgical procedures. This elevation was abolished after pretreatment with a selective serotonin reuptake inhibitor (fluoxetine; 10 mg/kg i.v.), although brain 5-HT levels remained augmented. These results indicate that augmented brain 5-HT can cross the BBB through the 5-HT transporter from the brain to the circulating blood.
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Affiliation(s)
- Yasushi Nakatani
- Department of Physiology, Toho University School of Medicine, 5-21-16, Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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Nakasato A, Nakatani Y, Seki Y, Tsujino N, Umino M, Arita H. Swim stress exaggerates the hyperactive mesocortical dopamine system in a rodent model of autism. Brain Res 2007; 1193:128-35. [PMID: 18177632 DOI: 10.1016/j.brainres.2007.11.043] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 11/27/2007] [Accepted: 11/27/2007] [Indexed: 10/22/2022]
Abstract
Several clinical reports have suggested that there is a hyperactivation of the dopaminergic system in people with autism. Using rats exposed prenatally to valproic acid (VPA) as an animal model of autism, we measured dopamine (DA) levels in samples collected from the frontal cortex (FC) using in vivo microdialysis and HPLC. The basal DA level in FC was significantly higher in VPA-exposed rats relative to controls. Since the mesocortical DA system is known to be sensitive to physical and psychological stressors, we measured DA levels in FC before, during, and after a 60-min forced swim test (FST). There were further gradual increases in FC DA levels during the FST in the VPA-exposed rats, but not in the control rats. Behavioral analysis during the last 10 min of the FST revealed a significant decrease in active, escape-oriented behavior and an increase in immobility, which is thought to reflect the development of depressive behavior that disengages the animal from active forms of coping with stressful stimuli. These results suggest that this rodent model of autism exhibits a hyperactive mesocortical DA system, which is exaggerated by swim stress. This abnormality may be responsible for depressive and withdrawal behavior observed in autism.
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Affiliation(s)
- Akane Nakasato
- Department of Physiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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Nakatani Y, Nakasato A, Kambayashi E, Kikuchi H, Seki Y, Fumoto M, Sato-Suzuki I, Arita H. Brain endothelium serotonin (5-HT) transporter contributes 5-HT homeostasis within the brain. Auton Neurosci 2007. [DOI: 10.1016/j.autneu.2007.06.222] [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: 10/23/2022]
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31
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Akagi D, Arita H, Komiyama T, Ishii S, Shigematsu K, Nagawa H, Miyata T. Objective Assessment of Nerve Injury after Greater Saphenous Vein Stripping. Eur J Vasc Endovasc Surg 2007; 33:625-30. [PMID: 17223366 DOI: 10.1016/j.ejvs.2006.11.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2006] [Accepted: 11/26/2006] [Indexed: 10/23/2022]
Abstract
AIM The complication of nerve injury after greater saphenous vein stripping for varicosity is subjective, and a method for objective evaluation has never been established. The aim of this study was to evaluate postoperative sensory changes by quantitative assessment of current perception threshold (CPT), and to clarify the relation between CPT and symptoms. PATIENTS AND METHODS Between January 2003 and August 2005, 27 limbs in 18 patients were enrolled. Quantitative sensory function was determined through CPT using a Neurometer (Neurotron, Inc., USA), with which saphenous nerve neural fiber selective minimum sensing values against three electrical stimuli (2000, 250, 5 Hz) were measured. CPT measurements were scheduled on the day before the operation, and 2-7 days, 1, 3, and 6 months after the operation. RESULTS An increase in CPT value of more than 20% or decrease to below 50% compared to the preoperative value with at least two stimuli was defined as CPT abnormality. Subjective symptoms were observed in 13 limbs in the early postoperative period, and 10 limbs showed CPT abnormality. In 6 limbs with a CPT increase over 20% with all three stimuli, neurological symptoms continued for 6 months. CONCLUSIONS CPT evaluation provides an objective indication of neurological symptoms in the lower limb following varicose vein surgery.
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Affiliation(s)
- D Akagi
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Japan.
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Arita H. [Emotional tears are induced by activation of medial prefrontal cortex]. Nihon Yakurigaku Zasshi 2007; 129:99-103. [PMID: 17299235 DOI: 10.1254/fpj.129.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Tsujino N, Nakatani Y, Seki Y, Nakasato A, Nakamura M, Sugawara M, Arita H. Abnormality of circadian rhythm accompanied by an increase in frontal cortex serotonin in animal model of autism. Neurosci Res 2007; 57:289-95. [PMID: 17157402 DOI: 10.1016/j.neures.2006.10.018] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2006] [Revised: 09/14/2006] [Accepted: 10/27/2006] [Indexed: 11/20/2022]
Abstract
Several clinical reports have indicated that autistic patients often show disturbance of the circadian rhythm, which may be related to dysfunction of the serotonergic system in the brain. Using rats exposed prenatally to valproic acid (VPA) as an animal model of autism, we examined locomotor activity and feeding under a reversed 12-h light/dark cycle, and found disturbance of the circadian rhythm characterized by frequent arousal during the light/sleep phase. In addition, measurement of brain serotonin (5-HT) level using in vivo microdialysis showed that the brain 5-HT level in VPA-exposed rats was significantly higher than that in control rats. These results suggest that a higher brain 5-HT level might be responsible for the irregular sleep/awake rhythm in autism.
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Affiliation(s)
- Naohisa Tsujino
- Department of Psychiatry, Toho University School of Medicine, 11-1 Omori-nishi 6-chome, Tokyo, Japan.
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Nakatani Y, Seki Y, Kikuchi H, Kambayashi E, Fumoto M, Sato-Suzuki I, Arita H. Contribution of increase in brain serotonin (5-HT) upon increase in blood 5-HT induced by 5-HTP administration in rat. Neurosci Res 2007. [DOI: 10.1016/j.neures.2007.06.1034] [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: 10/23/2022]
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35
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Kita I, Seki Y, Nakatani Y, Fumoto M, Oguri M, Sato-Suzuki I, Arita H. Corticotropin-releasing factor neurons in the hypothalamic paraventricular nucleus are involved in arousal/yawning response of rats. Behav Brain Res 2006; 169:48-56. [PMID: 16413065 DOI: 10.1016/j.bbr.2005.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 11/30/2005] [Accepted: 12/08/2005] [Indexed: 10/25/2022]
Abstract
Our previous studies have suggested that activation of the hypothalamic paraventricular (PVN) descending oxytocinergic projections is involved in the induction of yawning accompanied by an arousal response, but the possibility that neural systems other than the oxytocinergic system in the PVN also mediate the arousal/yawning response cannot be ruled out. We assessed the activity of corticotropin-releasing factor (CRF) neurons during yawning induced by the PVN stimulation in anesthetized, spontaneously breathing rats using double-staining for c-Fos and CRF. Yawning response was evaluated by monitoring an intercostals electromyogram as an index of inspiratory activity and a digastric electromyogram as an indicator of mouth opening. We also recorded the electrocorticogram (ECoG) to determine the arousal response during yawning. Microinjection of l-glutamate (2-5 nmol) into the PVN produced a frequent yawning accompanied by an arousal shift in the ECoG, and these behavioral effects were associated with a significant increase of c-Fos positive CRF neurons in the medial parvocellular subdivision of the PVN. In addition, a marked enhancement in the c-Fos expression was found in the both locus coeruleus (LC) and global area in the cortex when the frequency of yawning response was increased by the PVN stimulation, suggesting that the arousal response during yawning might be mediated by the activation of LC neurons. The present study suggests that an activation of CRF neurons in the PVN is responsible for the arousal response accompanied by yawning behavior.
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Affiliation(s)
- Ichiro Kita
- Department of Physiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ohta-ku, Tokyo 143-8540, Japan
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36
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Mohri Y, Fumoto M, Sato-Suzuki I, Umino M, Arita H. Prolonged rhythmic gum chewing suppresses nociceptive response via serotonergic descending inhibitory pathway in humans. Pain 2005; 118:35-42. [PMID: 16202533 DOI: 10.1016/j.pain.2005.07.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2004] [Revised: 06/17/2005] [Accepted: 07/18/2005] [Indexed: 02/06/2023]
Abstract
Serotonergic (5-HT) neurons are implicated in modulating nociceptive transmission. It is established that 5-HT neuronal activity is enhanced by rhythmic behaviors such as chewing and locomotion in animals. We thus hypothesized that 5-HT descending inhibitory pathways may be enhanced by rhythmic behavior of gum chewing in humans. To evaluate this idea, we examined nociceptive flexion reflex (NFR), while a subject chewed gum rhythmically for 20 min. NFR was elicited by electrical stimulation of the sural nerve, and the evoked potential was recorded from the biceps femoris muscle. Visual analogue scale (VAS) was also obtained. To assess 5-HT activity, we determined 5-HT levels quantitatively in platelet poor plasma (PPP) and whole blood (WB) using HPLC system. Both NFR area and VAS were significantly decreased at 5 min after the onset of chewing and these reductions persisted until cessation of chewing. There were no significant changes in NFR and VAS while resting without chewing. The PPP 5-HT level increased significantly just after cessation of chewing and had returned to the pre-chewing level by 30 min after cessation of chewing. The WB 5-HT level obtained 30 min after cessation of chewing was significantly greater than the pre-chewing level. Serotonin transporters have recently been discovered at the blood-brain barrier, suggesting that the rise in blood 5-HT may possibly reflect an increase in 5-HT level within the brain. The present results support our hypothesis that the rhythmic behavior of chewing suppresses nociceptive responses via the 5-HT descending inhibitory pathway.
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Affiliation(s)
- Yuko Mohri
- Anesthesiology and Clinical Physiology, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Tokyo 113-8549, Japan
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Kita I, Imanaka K, Arita H. Effects of practice on cardiorespiratory responses during postural control. Exp Brain Res 2004; 161:512-8. [PMID: 15517214 DOI: 10.1007/s00221-004-2095-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2004] [Accepted: 08/10/2004] [Indexed: 02/04/2023]
Abstract
The present study examined the effects of practice of a balance test on cardiorespiratory changes in response to a 1-min balance test performed by standing on one leg with eyes closed (SOLEC) in 30 females (n=15, 21+/-4 years, mean+/-SD, for the experimental group; n=15, 22+/-4 years for the control group). Blood pressure (BP), heart rate (HR), minute ventilation (VE), respiratory rate (RR), tidal volume (VT), expiratory duration (Te), inspiratory duration (Ti), and oxygen uptake (VO(2)) were measured during the balance test before and after 2 wk of daily practice. The experimental group was given a daily 15-min practice session for the balance test. In contrast, the control group was instructed not to do any special practice for the balance test. In both the experimental and control groups, SOLEC induced significant increases in BP, HR, VE, RR, and VO(2), and decreases in Te and Ti. Following the practice sessions, the balance time increased significantly in the experimental group (P<0.01). In addition, 2 wk of practice reduced the increases in BP (P<0.01), VE (P<0.05), and RR (P<0.01), and prolonged Te (P<0.01) during the SOLEC test. These results suggest that practice of a postural task affects cardiorespiratory responses to the balance test in addition to postural control.
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Affiliation(s)
- Ichiro Kita
- Department of Kinesiology, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, 192-0397 Tokyo, Japan.
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38
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Fumoto M, Sato-Suzuki I, Seki Y, Mohri Y, Arita H. Appearance of high-frequency alpha band with disappearance of low-frequency alpha band in EEG is produced during voluntary abdominal breathing in an eyes-closed condition. Neurosci Res 2004; 50:307-17. [PMID: 15488294 DOI: 10.1016/j.neures.2004.08.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2004] [Accepted: 08/02/2004] [Indexed: 11/17/2022]
Abstract
This study examined the effects of voluntary abdominal breathing (VAB) on the electroencephalogram (EEG) in 22 healthy subjects. VAB was characterized by prolonged rhythmic contraction of abdominal muscles for 20 min in an eyes-closed condition. The breathing rate was instructed to be very slow, i.e., 3-4 breaths/min (inspiratory time for 6-8s and expiratory time for 9-12s). A low-frequency alpha band appeared immediately after eye closing, but it later disappeared and was replaced by a new development of a high-frequency alpha band 4-5 min after the onset of VAB. The subjects had a feeling of vigor-activity with a tendency of reduced anxiety during and/or after VAB, as assessed by POMS and STAI questionnaire scores. On the other hand, during resting in the eye-closed condition, the disappearance of the low-frequency alpha band was replaced by the occurrence of a theta/delta band. The subjects became drowsy in this condition. We therefore conclude that the increase in high-frequency alpha activity is linked to the state of vigor-activity with a tendency of reduced anxiety. Since the urinary serotonergic level significantly increased after the VAB, we suggest that the serotonergic neurons within the brain may produce the changes in the EEG patterns.
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Affiliation(s)
- Masaki Fumoto
- Department of Physiology, Toho University School of Medicine, 5-21-16, Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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Abstract
Hiccup reflex is a coordinated motor activity that causes a brief strong inspiratory movement accompanied by glottic adduction. Our previous study has demonstrated that mechanical stimulation of the dorsal epipharynx elicits hiccup-like response. To identify the afferent pathway of the hiccup-like response, the pharyngeal branch of the glossopharyngeal nerve (PB-GPN) which distributed to the dorsal epipharyngeal area was electrically stimulated in anesthetized, spontaneously breathing cats. To access the epipharynx and to directly observe a glottic movement, we made a submental opening at the region rostral to the epiglottis. An activity from the lateral cricoarytenoid (LCA) muscle of the larynx was recorded as an index of glottic adduction, and intrapleural pressure (Ppl) as an index of an inspiratory movement. Electrical stimulation of PB-GPN evoked a fixed motor pattern of hiccup-like response representing a spiky strong negative change in Ppl accompanied by an initial brief burst of LCA electromyogram (EMG). LCA excitation occurred prior to the spiky inspiratory movement. An initial and transient glottic adduction during the response was confirmed by direct observation. Electrical stimulation of the main trunk of the glossopharyngeal nerve evoked expiratory reflex, but not inspiratory (hiccup-like) response. These results indicated that PB-GPN is responsible for hiccup reflex.
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Affiliation(s)
- Tukasa Kondo
- Department of Physiology, Toho University School of Medicine, Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
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40
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Abstract
We examined the effects of light stimulation on cortical activation and yawning response in anesthetized, spontaneously breathing rats. Cortical activation was assessed by means of an electrocorticogram (ECoG) and yawning response was evaluated by monitoring an intercostal electromyogram as an index of inspiratory activity and a digastric electromyogram as an indicator of mouth opening. Light stimulation elicited an arousal shift in the ECoG to faster rhythms. This arousal response was followed by a single large inspiration with mouth opening, i.e. a yawning response. Higher light intensity significantly reduced the onset latency of the arousal/yawning response. Pretreatment with pyrilamine, an H1-histamine receptor antagonist, injected into the lateral ventricle blocked both the cortical activation and the yawning response induced by light stimulation, suggesting a role of brain histaminergic neurotransmission in modulating the light-induced arousal/yawning responses.
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Affiliation(s)
- Yoshinari Seki
- Department of Physiology, Toho University School of Medicine, 5-21-16, Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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Sato M, Ohashi J, Tsuchiya N, Kashiwase K, Ishikawa Y, Arita H, Hanaoka K, Tokunaga K, Yabe T. Association of HLA-A*3303-B*4403-DRB1*1302 haplotype, but not of TNFA promoter and NKp30 polymorphism, with postherpetic neuralgia (PHN) in the Japanese population. Genes Immun 2002; 3:477-81. [PMID: 12486606 DOI: 10.1038/sj.gene.6363890] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2001] [Revised: 04/02/2002] [Accepted: 04/10/2002] [Indexed: 11/08/2022]
Abstract
Herpes zoster is a common disease caused by reactivation of the varicella zoster virus (VZV). In a small number of herpes zoster patients, pain persists beyond 4 weeks or more after healing of vesicular eruptions; this condition is termed postherpetic neuralgia (PHN). Positive associations of human histocompatibility leukocyte antigens (HLA) class I antigens, A33 and B44, with PHN in the Japanese population have been reported. Our hypothesis is that susceptibility genes to PHN might exist in the HLA region and the study objective is to further examine possible associations of genes in HLA class I, II and III regions, HLA-A, -B, -DRB1, tumor necrosis factor alpha (TNFA) promoter, and a natural killer cell activating receptor, NKp30 polymorphisms with PHN. Although TNFA or NKp30 in the class III region had been considered as a candidate locus, we found no associations of TNFA promoter or NKp30 polymorphisms with PHN in this study. We demonstrated that HLA-A*3303, -B*4403 and -DRB1*1302 alleles were significantly associated with PHN (P = 0.0007 for A*3303, P = 0.001 for B*4403 and P = 0.001 for DRB1*1302). The frequency of the HLA-A*3303-B*4403-DRB1*1302 haplotype was also significantly higher in the PHN patients than in the healthy controls (P = 0.0039). Our results suggest that this haplotype might be related to the pathogenesis of PHN.
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Affiliation(s)
- M Sato
- Department of Research, Tokyo Metropolitan Red Cross Blood Center, Tokyo, 150-0012 Japan
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42
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Seki Y, Sato-Suzuki I, Kita I, Oguri M, Arita H. Yawning/cortical activation induced by microinjection of histamine into the paraventricular nucleus of the rat. Behav Brain Res 2002; 134:75-82. [PMID: 12191794 DOI: 10.1016/s0166-4328(01)00454-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects of microinjection of histamine into the paraventricular nucleus (PVN) of the hypothalamus on yawning responses were investigated in anesthetized, spontaneously breathing rats. Yawning responses were evaluated by monitoring the intercostal electromyogram (EMG) as an index of inspiratory activity and digastric EMG as an indicator of mouth opening. We also recorded the electrocorticogram (ECoG) to determine the arousal response during yawning. Autonomic function was evaluated by measuring blood pressure and heart rate. Microinjection of histamine into the medial parvocellular subdivision (mp) of the PVN elicited a yawning response, i.e. a single large inspiration with mouth opening, and an arousal shift in ECoG to lower voltage and faster rhythms. Microinjection of HTMT dimaleate, an H1 receptor agonist, into the PVN also caused the yawning/arousal response. Pretreatment with pyrilamine, an H1 receptor antagonist, inhibited the histamine induced yawning behavior. These data demonstrate that a histamine receptive site for triggering yawning/arousal responses exists in the PVN, and suggest that these responses are mediated by activation of H1 receptor within the PVN.
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Affiliation(s)
- Yoshinari Seki
- Department of Physiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ohta-ku, Tokyo 143-8540, Japan
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43
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Abstract
Orexin-A is a neuropeptide which has been suggested to be involved in sleep and arousal mechanisms. Orexin-A, for example, stimulates arousal when administrated intracerebroventricularly to rats. We attempted to identify specific neural sites of orexin-A and orexin-B action. Orexin-A and orexin-B were microinjected into the medial parvocellular subdivision of the paraventricular nucleus (PVN) in anesthetized, spontaneously breathing rats, and cortical arousal and yawning responses were assessed. Cortical arousal responses were monitored with the electrocorticogram (ECoG), and yawning responses were evaluated by monitoring intercostal electromyograms as an index of inspiratory activity and digastric electromyograms as an indicator of mouth opening. We also measured blood pressure and heart rate during yawning responses, since yawning is accompanied by changes in autonomic activity. Microinjection of orexin-A into the PVN elicited an arousal shift in the ECoG to lower voltage and faster rhythms. This cortical arousal response was followed by a single large inspiration with mouth opening, i.e. a yawning response. On the other hand, microinjection of orexin-B into the PVN elicited an arousal shift in the ECoG without yawning responses. These results demonstrate that an orexin receptive site for triggering arousal/yawning responses exists in the PVN, and suggest that the PVN is involved in arousal mechanisms.
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Affiliation(s)
- Ikuko Sato-Suzuki
- Department of Physiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ota-ku, Tokyo 143-8540, Japan
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44
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Yokota Y, Notoya M, Higashino K, Ishimoto Y, Nakano K, Arita H, Hanasaki K. Clearance of group X secretory phospholipase A(2) via mouse phospholipase A(2) receptor. FEBS Lett 2001; 509:250-4. [PMID: 11741598 DOI: 10.1016/s0014-5793(01)03173-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Given the potent hydrolyzing activity toward phosphatidylcholine, group X secretory phospholipase A(2) (sPLA(2)-X) elicits a marked release of arachidonic acid linked to the potent production of lipid mediators in various cell types. We have recently shown that sPLA(2)-X can also act as a ligand for mouse phospholipase A(2) receptor (PLA(2)R). Here, we found that sPLA(2)-X was internalized and degraded via binding to PLA(2)R associated with the diminished prostaglandin E(2) (PGE(2)) formation in PLA(2)R-expressing Chinese hamster ovary (CHO) cells compared to CHO cells. Indirect immunocytochemical analysis revealed that internalized sPLA(2)-X was co-localized with PLA(2)R in the punctate structures in PLA(2)R-expressing CHO cells. Moreover, in mouse osteoblastic MC3T3-E(1) cells that endogenously express the PLA(2)R, the internalized sPLA(2)-X was localized in lysosomes. These findings demonstrate that PLA(2)R acts as a clearance receptor for sPLA(2)-X to suppress its strong enzymatic activity.
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Affiliation(s)
- Y Yokota
- Shionogi Research Laboratories, Shionogi and Co., Ltd., Sagisu 5-12-4, Fukushima-ku, 553-0002, Osaka, Japan
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45
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Meno A, Ueno T, Chang K, Arita H, Hanaoka K. [Acute myocardial infarction in the postoperative period in an elderly man with low coronary risk factor before the operation]. Masui 2001; 50:1016-8. [PMID: 11593713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
An 86-year-old man complicated by severe asthma developed myocardial infarction after the operation of abdominal aortic aneurysm. Emergency coronary angiography (CAG) revealed 99% stenosis of main trunks of left coronary artery (LMT). Because the patient had been without major coronary risk factors, it was difficult to predict coronary lesions preoperatively. Elderly patients have frequently latent complications not detected by usual consultation. Therefore, in elderly patients, we have to evaluate each individual risk factor more rigidly, and perform more thorough preoperative tests, including CAG.
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Affiliation(s)
- A Meno
- Department of Anesthesiology, Pain Relief Center, University of Tokyo Hospital, Tokyo 113-8655
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46
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Arimura A, Yasui K, Kishino J, Asanuma F, Hasegawa H, Kakudo S, Ohtani M, Arita H. Prevention of allergic inflammation by a novel prostaglandin receptor antagonist, S-5751. J Pharmacol Exp Ther 2001; 298:411-9. [PMID: 11454901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
Prostaglandin (PG) D2, the major cyclooxygenase metabolite generated from immunologically stimulated mast cells, is thought to contribute to the pathogenesis of allergic diseases due to its various inflammatory effects. However, since no DP receptor antagonist has been developed as an antiallergic drug, the role of PGD2 in the pathogenesis of allergic diseases remains uncertain. Here, we report the in vivo efficacy of our newly established DP receptor antagonist, S-5751 [((Z)-7-[(1R,2R,3S,5S)-2-(5-hydroxy benzo[b]thiophen-3-ylcarbonylamino)-10-norpinan-3-yl]hept-5- enoic acid)], using various allergic inflammation guinea pig models. In allergic rhinitis models, oral administration of S-5751 dramatically inhibited not only early nasal responses, as assessed by sneezing, mucosal plasma exudation, and nasal blockage, but also late responses such as mucosal plasma exudation and eosinophil infiltration. Even when S-5751 was administered after recovery from the early responses, these late phase responses were almost completely suppressed. In addition, S-5751 alleviated allergen-induced plasma exudation in the conjunctiva in an allergic conjunctivitis model and antigen-induced eosinophil infiltration into the lung in an asthma model. These findings provide evidence for the crucial role of PGD2 as a mediator of allergic inflammation in guinea pigs and suggest that DP receptor antagonists may be useful in the treatment of allergic diseases triggered by mast cell activation.
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Affiliation(s)
- A Arimura
- Discovery Research Laboratories, Shionogi & Co., Osaka, Japan.
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47
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Meno A, Arita H, Hanaoka K. [Preliminary report: the efficacy of clonidine hydrochloride ointment for postherpetic neuralgia]. Masui 2001; 50:160-3. [PMID: 11244770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The combination of clonidine hydrochloride, alpha 2-agonist, and opioid is useful for relieving the pain due to surgical procedures or cancer. The routes of administrations used are intravenous, intramuscular as well as intrathecal, epidural and transmucosal. However, transdermal clonidine has not been reported. We, therefore, investigated the analgesic effect of local administration of clonidine ointment. Ten patients with postherpetic neuralgia (PHN) were selected randomly. They were requested to fill out a questionnaire after applying clonidine ointment (150 micrograms/ointment 1 g) to the painful area. Items included in the questionnaire were: effectiveness, visual analog scale (VAS) before and after the administration of clonidine ointment, onset time, with or without allodynia and effectiveness to allodynia in the former case, side effects, and patients' background. Analysis of the answers indicates that clonidine ointment produced a satisfactory effect in nine patients. Onset time was within a few minutes in most patients. No patients suffered any side effects. Specific mechanism of effectiveness or the site affected has not been confirmed in this study, but considering the quick onset, it is presumed that the site where the ointment was applied was the very site that was affected. Clonidine hydrochloride ointment was effective in relieving the symptoms of PHN.
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Affiliation(s)
- A Meno
- Department of Anesthesiology and Pain Relief Center, University of Tokyo Hospital, Tokyo 113-8655
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48
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Saiga A, Morioka Y, Ono T, Nakano K, Ishimoto Y, Arita H, Hanasaki K. Group X secretory phospholipase A(2) induces potent productions of various lipid mediators in mouse peritoneal macrophages. Biochim Biophys Acta 2001; 1530:67-76. [PMID: 11341959 DOI: 10.1016/s1388-1981(00)00167-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We have previously shown the expression of group X secretory phospholipase A(2) (sPLA(2)-X) in mouse splenic macrophages and its powerful potency for releasing fatty acids from various intact cell membranes. Here, we examined the potency of sPLA(2)-X in the production of lipid mediators in murine peritoneal macrophages. Mouse sPLA(2)-X was found to induce a marked release of fatty acids including arachidonic acid and linoleic acid, which contrasted with little, if any, release by the action of group IB and IIA sPLA(2)s. In resting macrophages, sPLA(2)-X elicited a modest production of prostaglandin E(2) and thromboxane A(2). After the induction of cyclooxygenase-2 (COX-2) by pretreatment with lipopolysaccharide, a dramatic increase in the production of these eicosanoids was observed in sPLA(2)-X-treated macrophages, which was completely blocked by the addition of either the specific sPLA(2) inhibitor indoxam or the COX inhibitor indomethacin. In accordance with its higher hydrolyzing activity toward phosphatidylcholine, mouse sPLA(2)-X induced a potent production of lysophosphatidylcholine. These findings strongly suggest that sPLA(2)-X plays a critical role in the production of various lipid mediators from macrophages. These events might be relevant to the progression of various pathological states, including chronic inflammation and atherosclerosis.
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Affiliation(s)
- A Saiga
- Shionogi Research Laboratories, Shionogi&Co., Ltd., 12-4 Sagisu, 5-Chome, Fukushima-ku, 553-0002, Osaka, Japan
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Morioka Y, Ikeda M, Saiga A, Fujii N, Ishimoto Y, Arita H, Hanasaki K. Potential role of group X secretory phospholipase A(2) in cyclooxygenase-2-dependent PGE(2) formation during colon tumorigenesis. FEBS Lett 2000; 487:262-6. [PMID: 11150521 DOI: 10.1016/s0014-5793(00)02350-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although the cyclooxygenase-2 (COX-2) pathway of the arachidonic acid cascade has been suggested to play an important role in colon carcinogenesis, there is little information concerning the identity of phospholipase A(2) (PLA(2)) involved in the arachidonic acid release in colon tumors. Here, we compared the potencies of three types of secretory PLA(2)s (group IB, IIA and X sPLA(2)s) for the arachidonic acid release from cultured human colon adenocarcinoma cells, and found that group X sPLA(2) has the most powerful potency in the release of arachidonic acid leading to COX-2-dependent prostaglandin E(2) (PGE(2)) formation. Furthermore, immunohistological analysis revealed the elevated expression of group X sPLA(2) in human colon adenocarcinoma neoplastic cells in concert with augmented expression of COX-2. These findings suggest a critical role of group X sPLA(2) in the PGE(2) biosynthesis during colon tumorigenesis.
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Affiliation(s)
- Y Morioka
- Shionogi Research Laboratories, Shionogi and Co., Ltd., Sagisu 5-12-4, Fukushima-ku, 553-0002, Osaka, Japan
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50
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Abstract
Yawing was induced by microinjections of L-glutamate, cyanide and a nitric oxide-releasing compound (NOC12) into the paraventricular nucleus of the hypothalamus (PVN) in anesthetized, spontaneously breathing rats. To evaluate physiological aspects of yawning, we monitored intercostal electromyogram (EMG) as an index of inspiratory activity, digastric EMG, blood pressure and electrocorticogram (ECoG). Microinjection of L-glutamate in the medial parvocellular subdivision (mp) elicited a stereotyped yawning response, i.e. an initial depressor response and an arousal shift in ECoG followed by a single large inspiration with mouth opening. The same sequential events were observed during spontaneous yawning, indicating that the mp is responsible for triggering yawning. Microinjection of cyanide into the mp caused the same yawning responses as the ones elicited by microinjection of L-glutamate, suggesting that the mp is sensitive to chemical hypoxia or ischemia within the PVN. Microinjection of NOC12 into the mp elicited a single large inspiration with a variable onset delay, suggesting that diffusible nitric oxide (NO) within the mp may act as a paracrine agent to cause a yawning response. We hypothesize that the mp of the PVN contains an oxygen sensor that causes a yawning response.
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Affiliation(s)
- I Kita
- Department of Physiology, Toho University School of Medicine, 5-21-16, Omori-nishi, Ota-ku, 143-8540, Tokyo, Japan
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