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Ishikawa T, Fujimura H, Fukasawa H, Hashimoto R, He Q, Honda Y, Iwata T, Kaida S, Kanda H, Kasagi J, Kawano A, Kuwasaki S, Maeda K, Masumoto S, Miyabe M, Miyahara F, Mochizuki K, Muramatsu N, Nakamura A, Nawa K, Ogushi S, Okada Y, Okamura K, Onodera Y, Ozawa K, Sakamoto Y, Shimizu H, Sugai H, Suzuki K, Tajima Y, Takahashi S, Taniguchi Y, Tsuchikawa Y, Yamazaki H, Yamazaki R, Yoshida H. Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron. EPJ WEB OF CONFERENCES 2020. [DOI: 10.1051/epjconf/202024101007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The B = 2 bound/resonance state (dibaryon) is an interesting object, which can be a molecule consisting of two baryons or a spatially compact hexaquark hadron object. The yd ^ n°n°d reaction has been experimentally investigated at incident energies ranging from 0.58 to 1.15 GeV to study non-strange dibaryons. The angular distributions of deuteron emission in the yd center-of-mass energy cannot be reproduced by quasi-free production of two neutral pions followed by deuteron coalescence. Additionally a 2.14-GeV peak is observed in the n°d invariant mass distribution. These suggest a sequential process such as yd ^ RIS ^ n°RIV ^ n°n°d with an isoscalar dibaryon RIS and an isovector dibaryon RIV. Since the mass of the observed isoscalar dibaryons are close to the sum of the nucleon (N) and nucleon resonance (N*) masses, an S-wave NN* molecule may play a role as a doorway to a dibaryon.
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Kohri H, Shiu SH, Chang WC, Yanai Y, Ahn DS, Ahn JK, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Gohn W, Hicks K, Hosaka A, Hotta T, Hwang SH, Imai K, Ishikawa T, Joo K, Kato Y, Kon Y, Lee HS, Maeda Y, Mibe T, Miyabe M, Morino Y, Muramatsu N, Nakano T, Nakatsugawa Y, Nam SI, Niiyama M, Noumi H, Ohashi Y, Ohta T, Oka M, Parker JD, Rangacharyulu C, Ryu SY, Sawada T, Shimizu H, Strokovsky EA, Sugaya Y, Sumihama M, Tsunemi T, Uchida M, Ungaro M, Wang SY, Yosoi M. Differential Cross Section and Photon-Beam Asymmetry for the γ[over →]p → π^{-}Δ^{++}(1232) Reaction at Forward π^{-} Angles for E_{γ}=1.5-2.95 GeV. PHYSICAL REVIEW LETTERS 2018; 120:202004. [PMID: 29864366 DOI: 10.1103/physrevlett.120.202004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/11/2018] [Indexed: 06/08/2023]
Abstract
Differential cross sections and photon-beam asymmetries for the γ[over →]p→π^{-}Δ^{++}(1232) reaction have been measured for 0.7<cosθ_{π}^{c.m.}<1 and E_{γ}=1.5-2.95 GeV at SPring-8/LEPS. The first-ever high statistics cross-section data are obtained in this kinematical region, and the asymmetry data for 1.5<E_{γ}(GeV)<2.8 are obtained for the first time. This reaction has a unique feature for studying the production mechanisms of a pure uu[over ¯] quark pair in the final state from the proton. Although there is no distinct peak structure in the cross sections, a non-negligible excess over the theoretical predictions is observed at E_{γ}=1.5-1.8 GeV. The asymmetries are found to be negative in most of the present kinematical regions, suggesting the dominance of π exchange in the t channel. The negative asymmetries at forward meson production angles are different from the asymmetries previously measured for the photoproduction reactions producing a dd[over ¯] or an ss[over ¯] quark pair in the final state. Advanced theoretical models introducing nucleon resonances and additional unnatural-parity exchanges are needed to reproduce the present data.
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Fujimura H, Kakinoki E, Uemichi A, Miyata T, Kawasaki T. Is there a Role for Genetic Polymorphism of C677T Methylenetetrahydrofolate Reductase (MTHFR) in Buerger’s Disease? Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Hasuike Y, Endo T, Koroyasu M, Matsui M, Mori C, Yamadera M, Fujimura H, Sakoda S. Clinical features of Parkinson’s disease patients with small intestinal bacterial overgrowth. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sumi-Akamaru H, Beck G, Riku Y, Yoshida M, Fujimura H, Kato S, Mochizuki H. Iron accumulation and neuroaxonal dystrophy in PLA2G6 associated neurodegeneration. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Matsui M, Yamadera M, Saito T, Matsumura T, Fujimura H. The evaluation of new biomarkers in a case of MELAS. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Matsumura T, Matsui M, Iwata Y, Asakura M, Saito T, Fujimura H, Sakoda S. TRPV2 inhibition therapy can be effective for cardiomyopathy of muscular dystrophy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Ryu SY, Ahn JK, Nakano T, Ahn DS, Ajimura S, Akimune H, Asano Y, Chang WC, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Hasegawa S, Hicks K, Horie K, Hotta T, Hwang SH, Imai K, Ishikawa T, Iwata T, Kato Y, Kawai H, Kino K, Kohri H, Kon Y, Kumagai N, Lin PJ, Maeda Y, Makino S, Matsuda T, Matsuoka N, Mibe T, Miyabe M, Miyachi M, Morino Y, Muramatsu N, Murayama R, Nakatsugawa Y, Nam SI, Niiyama M, Nomachi M, Ohashi Y, Ohkuma H, Ohta T, Ooba T, Oshuev DS, Parker JD, Rangacharyulu C, Sakaguchi A, Sawada T, Shagin PM, Shiino Y, Shimizu H, Strokovsky EA, Sugaya Y, Sumihama M, Tokiyasu AO, Toi Y, Toyokawa H, Tsunemi T, Uchida M, Ungaro M, Wakai A, Wang CW, Wang SC, Yonehara K, Yorita T, Yoshimura M, Yosoi M, Zegers RGT. Interference Effect between ϕ and Λ(1520) Production Channels in the γp→K^{+}K^{-}p Reaction near Threshold. PHYSICAL REVIEW LETTERS 2016; 116:232001. [PMID: 27341225 DOI: 10.1103/physrevlett.116.232001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 06/06/2023]
Abstract
The ϕ-Λ(1520) interference effect in the γp→K^{+}K^{-}p reaction has been measured for the first time in the energy range from 1.673 to 2.173 GeV. The relative phases between ϕ and Λ(1520) production amplitudes were obtained in the kinematic region where the two resonances overlap. The measurement results support strong constructive interference when K^{+}K^{-} pairs are observed at forward angles but destructive interference for proton emission at forward angles. Furthermore, the observed interference effect does not account for the sqrt[s]=2.1 GeV bump structure in forward differential cross sections for ϕ photoproduction. This fact suggests possible exotic structures such as a hidden-strangeness pentaquark state, a new Pomeron exchange, or rescattering processes via other hyperon states.
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Fujimura H, Komasaka T, Tomari T, Kitano Y, Takekawa K. Nanosuspension formulations of poorly water-soluble compounds for intravenous administration in exploratory toxicity studies: in vitro and in vivo evaluation. J Appl Toxicol 2016; 36:1259-67. [PMID: 26849104 DOI: 10.1002/jat.3280] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 11/29/2015] [Accepted: 11/30/2015] [Indexed: 11/09/2022]
Abstract
This study was conducted to investigate the use of a nanosuspension for intravenous injection into dogs to increase exposure without toxic additives for preclinical studies in the discovery stage. Nanosuspensions were prepared with a mixer mill and zirconia beads with a vehicle of 2% (w/v) poloxamer 338, which was confirmed to lead to no histamine release in dogs. Sterilized nanosuspensions of poorly water-soluble compounds, cilostazol (Cil), spironolactone (Spi) and probucol (Pro), at 10 mg ml(-1) were obtained by milling for 30 min, followed by autoclaving for 20 min at 121 °C and milling for 30 min (mill-autoclave-mill method). The particle sizes (d50) of Cil, Spi and Pro were 0.554, 0.484 and 0.377 µm, respectively, and the percentages of the nominal concentration were 79.1%, 99.6% and 75.4%, respectively. In chromatographic data, no extra peaks were observed. The particle size of Cil was 0.564 µm after storage for 16 days at 2-8 °C. Cil in nanosuspension, but not in microsuspension, rapidly dissolved in dog plasma. Cil nanosuspension at 0.4 mg kg(-1) and Cil saline solution at 0.03 mg kg(-1) , around the saturation solubility, were intravenously administered to dogs. Nanosuspension increased exposure. The versatility of the mill-autoclave-mill method was checked for 15 compounds, and the particle size of 12 compounds was in the nano range. The nanosuspension optimized in this study may be useful for intravenous toxicological and pharmacological studies in the early stage of drug development. Copyright © 2016 John Wiley & Sons, Ltd.
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He Q, Fujimura H, Fukasawa H, Hashimoto R, Honda Y, Ishikawa T, Iwata T, Kaida S, Kasagi J, Kawano A, Kuwasaki S, Maeda K, Masumoto S, Miyabe M, Miyahara F, Mochizuki K, Muramatsu N, Nakamura A, Nawa K, Ogushi S, Okada Y, Onodera Y, Ozawa K, Sakamoto Y, Sato M, Shimizu H, Sugai H, Suzuki K, Tajima Y, Takahashi S, Taniguchi Y, Tsuchikawa Y, Yamazaki H, Yamazaki R, Yoshida HY. Double neutral pion photoproduction off the proton with FOREST at ELPH. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201610904004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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11
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Saito T, Takahashi T, Kuru S, Suzuki M, Matsumura T, Fujimura H, Sakoda S. Changes in clinical condition and causes of death of inpatients with myotonic dystrophy in Japan. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Matsumura T, Saito T, Fujimura H, Sakoda S. Renal dysfunction is common in myotonic dystrophy. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Murata M, Hasegawa K, Kanazawa I, Shirakura K, Kochi K, Shimazu R, Kimura T, Yoshida K, Abe T, Kurita K, Yoshizawa K, Tamaoka A, Nakano I, Shimizu T, Hattori N, Mizusawa H, Kuno S, Yokochi F, Hirabayashi K, Horiuchi E, Kawashima N, Koike R, Ishikawa A, Kuriyama M, Mizoguchi K, Mitake S, Washimi Y, Tatsuoka Y, Fujimura H, Toda K, Kondo T, Nakashima K, Nomoto M, Uozumi T, Sato A, Matsuo H, Tsuruta K. Randomized placebo‐controlled trial of zonisamide in patients with Parkinson's disease. ACTA ACUST UNITED AC 2015. [DOI: 10.1111/ncn3.12026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Komasaka T, Fujimura H, Tagawa T, Sugiyama A, Kitano Y. Practical method for preparing nanosuspension formulations for toxicology studies in the discovery stage: formulation optimization and in vitro/in vivo evaluation of nanosized poorly water-soluble compounds. Chem Pharm Bull (Tokyo) 2015; 62:1073-82. [PMID: 25366311 DOI: 10.1248/cpb.c14-00232] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study aimed to develop a practical method for preparing nanosuspension formulations of poorly water-soluble compounds for enhancing oral absorption in toxicology studies in the discovery stage. To obtain a suitable nanosuspension formulation for the intended purpose, formulations were optimized with a focus on the following characteristics: i) containing a high drug concentration, ii) consisting of commonly used excipient types in proper quantities for toxicology studies, iii) having long-term stability, and iv) having versatility for use with diverse compounds. Test compounds were milled with various excipients by wet media milling methods using a mixer mill (10 mg/batch) and a rotation/revolution mixer (0.5 g/batch). As a result, 100 mg/mL nanosuspensions of all 11 test compounds could be prepared with an optimized dispersing agent, 0.5% hydroxypropyl methylcellulose (HPMC) (3 cP)-0.5% Tween 80. Notably, it was found that the molecular weight of HPMC influenced not only particle size but also the stability of nanosuspensions and they were stable for 4 weeks at 5°C. The nanosuspensions increased in vitro dissolution rates and provided 3.9 and 3.0 times higher Cmax and 4.4 and 1.6 times higher area under the concentration-time curve from 0-24 h (AUC0-24 h) in rats (oral dose of 300 mg/kg) for cilostazol and danazol, respectively. In conclusion, applying a wet media milling method with the combination of HPMC of a small molecular weight and Tween 80 as a dispersing agent, nanosuspensions can be practically prepared and conveniently utilized for enhancing the oral absorption of poorly water-soluble compounds in toxicology studies in the discovery stage.
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Matsumura T, Saito T, Fujimura H, Sakoda S. G.P.30. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Saito T, Kawai M, Matsumura T, Fujimura H, Sakoda S. G.P.163. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nishida S, Surblys D, Yamaguchi Y, Kuroda K, Kagawa M, Nakajima T, Fujimura H. Molecular dynamics analysis of multiphase interfaces based on in situ extraction of the pressure distribution of a liquid droplet on a solid surface. J Chem Phys 2014; 140:074707. [DOI: 10.1063/1.4865254] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Surblys D, Yamaguchi Y, Kuroda K, Kagawa M, Nakajima T, Fujimura H. Molecular dynamics analysis on wetting and interfacial properties of water-alcohol mixture droplets on a solid surface. J Chem Phys 2014; 140:034505. [DOI: 10.1063/1.4861039] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Matsumura T, Kimura T, Kokunai Y, Nakamori M, Ogata K, Fujimura H, Takahashi M, Mochizuki H, Sakoda S. P.18.6 Self-questionnaire is effective for screening of patients with myotonic dystrophy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Saito T, Kikuchi-Taura A, Tada S, Iyama A, Kimura N, Matsumura T, Fujimura H, Sakoda S. P.13.1 Molecular biomarker of angiogenesis in neuromuscular disorders. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Takahashi C, Muramatsu R, Fujimura H, Mochizuki H, Yamashita T. Prostacyclin promotes oligodendrocyte precursor recruitment and remyelination after spinal cord demyelination. Cell Death Dis 2013; 4:e795. [PMID: 24030147 PMCID: PMC3789193 DOI: 10.1038/cddis.2013.335] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/07/2013] [Indexed: 12/21/2022]
Abstract
Adult oligodendrocyte precursor cells (OPCs) are located adjacent to demyelinated lesion and contribute to myelin repair. The crucial step in remyelination is the migration of OPCs to the demyelinated area; however, the mechanism of OPC migration remains to be fully elucidated. Here we show that prostacyclin (prostaglandin I2, PGI2) promotes OPC migration, thereby promoting remyelination and functional recovery in mice after demyelination induced by injecting lysophosphatidylcholine (LPC) into the spinal cord. Prostacyclin analogs enhanced OPC migration via a protein kinase A (PKA)-dependent mechanism, and prostacyclin synthase expression was increased in the spinal cord after LPC injection. Notably, pharmacological inhibition of prostacyclin receptor (IP receptor) impaired remyelination and motor recovery, whereas the administration of a prostacyclin analog promoted remyelination and motor recovery after LPC injection. Our results suggest that prostacyclin could be a key molecule for facilitating the migration of OPCs that are essential for repairing demyelinated areas, and it may be useful in treating disorders characterized by demyelination.
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Matsumura T, Saito T, Fujimura H, Shinno S, Sakoda S. S.P.64 Renal dysfunction is a frequent complication in patients with advanced stage of Duchenne muscular dystrophy. Neuromuscul Disord 2012. [DOI: 10.1016/j.nmd.2012.06.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sato H, Sakairi T, Fujimura H, Sugimoto J, Kume E, Kitamura K, Takahashi K. Hematological and morphological investigation of thrombogenic mechanisms in the lungs of phenylhydrazine-treated rats. ACTA ACUST UNITED AC 2012; 65:457-62. [PMID: 22402172 DOI: 10.1016/j.etp.2012.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 12/19/2011] [Accepted: 01/25/2012] [Indexed: 11/15/2022]
Abstract
Abnormality in hematological condition including hemolytic disorders has been suggested one of the risk factor of pulmonary thrombosis. We previously reported that phenylhydrazine (PHZ) could induce acute thrombosis in the rat lung. In this study, time-related hematological and histopathological changes were evaluated in PHZ-treated rats to reveal the pathogenesis of pulmonary thrombosis in hemolytic condition. Male Sprague-Dawley rats were administered PHZ at 40 mg/kg/day daily for up to 4 days (n=6). At 24 h after the last administration (i.e. on days 1, 2, 3, or 4), animals were euthanized and samples were subjected to hematology, light microscopy, and electron microscopy. PHZ-treated rats developed severe anemia on day 1 or later. On day 2 and after, congestion in the alveolar septa corresponding to accumulation of deformed/ghost erythrocytes in the alveolar capillaries was observed, which was the earliest change that preceded thrombus formation. Focal fibrin deposition in the alveolar septa was noted on day 3 and it expanded widely by day 4, while endothelial injury were minimally noted just on day 4. These congestive/thrombotic changes were predominant in the pulmonary capillaries. Changes in hemostatic parameters were noted only on day 4; which were prolonged prothrombin time and activated partial thromboplastin time, greatly increased plasma thrombin-antithrombin complex levels with statistical significance, and slightly decreased fibrinogen levels. In conclusion, the trigger of acute pulmonary thrombosis in PHZ-treated rats was considered to be regional stasis resulting from blockage caused by the deformed erythrocytes, and subsequent systemic hemostatic disruption.
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Hwang SH, Hicks K, Ahn JK, Nakano T, Ahn DS, Chang WC, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Gohn W, Hotta T, Imai K, Ishikawa T, Joo K, Kato Y, Kohri H, Kon Y, Lee HS, Maeda Y, Miyabe M, Mibe T, Morino Y, Muramatsu N, Nakatsugawa Y, Niiyama M, Noumi H, Oh Y, Ohashi Y, Ohta T, Oka M, Parker J, Rangacharyulu C, Ryu SY, Sawada T, Sugaya Y, Sumihama M, Tsunemi T, Uchida M, Ungaro M, Yosoi M. Spin-density matrix elements for γp→K*0Σ+ at Eγ=1.85-3.0 GeV with evidence for the κ(800) meson exchange. PHYSICAL REVIEW LETTERS 2012; 108:092001. [PMID: 22463625 DOI: 10.1103/physrevlett.108.092001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Indexed: 05/31/2023]
Abstract
The exclusive reaction γp→K(+)π(-)Σ(+) was measured for the first time using linearly polarized photons at beam energies from 1.85 to 2.96 GeV. Angular distributions in the rest frame of the K(+)π(-) system were fitted to extract spin-density matrix elements of the K(*0) decay. The measured parity spin asymmetry shows that natural-parity exchange is dominant in this reaction. This result clearly indicates the need for t-channel exchange of the κ(800) scalar meson.
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Endo T, Hamasaki T, Okuno R, Yokoe M, Fujimura H, Akazawa K, Sakoda S. 1.018 PARKINSONIAN RIGIDITY IN ELBOW JOINT IS MOST PRONOUNCED IN DISTAL PHASE OF EXTENSION. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70132-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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