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Sasaki R, Watanabe Y, Matsumine H, Ando T. Experimental miniature swine for facial nerve reconstructive research using dental pulp cells. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1183] [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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Joko Y, Sasaki R, Shintani K. Dynamic encapsulation of corannulene molecules into a single-walled carbon nanotube. Phys Chem Chem Phys 2017; 19:27704-27715. [DOI: 10.1039/c7cp05542k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Corannulene molecules dynamically encapsulated into a single-walled carbon nanotube form an ordered stack or a partially ordered stack where concave–concave corannulene dimers are the structural motif.
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Sasaki R, Shintani K. Hardness of Pillared-Graphene Nanostructures via Indentation Simulation. ACTA ACUST UNITED AC 2016. [DOI: 10.1557/adv.2016.634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Arakane F, Tanaka Y, Murakami N, Matsuoka T, Idegami T, Yoshimatsu K, Sasaki R. Relations of Pelvic Endometriosis and Ileal Endometriosis: Report of Two Cases. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Yoshida K, Miyawaki D, Nishikawa R, Akasaka H, Matsuo Y, Omoteda M, Kyotani K, Satoh H, Osuga S, Shimizu Y, Ebina Y, Takahashi S, Sasaki R. Comparison of Dosimetric Parameters in the Treatment Planning of MRI-Based Intracavitary Image Guided Adaptive Brachytherapy With and Without Optimization Combined With EBRT Using Central Shield. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Sasaki R, Cheung YC, Chan EC, Lin CH, Chen YR. Iohexol oral rinse to differentiate the palatoglossal surfaces in computed tomography of patients with obstructive sleep apnoea. Br J Oral Maxillofac Surg 2016; 55:207-208. [PMID: 27481534 DOI: 10.1016/j.bjoms.2016.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 07/14/2016] [Indexed: 11/20/2022]
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32
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Nakayama M, Munetomo Y, Ogata T, Uehara K, Tsudou S, Nishimura H, Mayahara H, Sasaki R. SU-F-T-293: Experimental Comparisons of Ionization Chambers with Different Volumes for CyberKnife Delivery Quality Assurance. Med Phys 2016. [DOI: 10.1118/1.4956478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Miyawaki D, Mukumoto N, Ejima Y, Yoshida K, Ishihara T, Kiyota N, Saito M, Otsuki N, Nibu K, Sasaki R. Radiation-Induced Hypothyroidism in Squamous Cell Carcinoma of the Head and Neck: A Dose-Volume Histogram Analysis. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ishihara T, Yamada K, Harada A, Isogai K, Miyawaki D, Yoshida K, Ejima Y, Sasaki R. Hypofractionated Stereotactic Radiation Therapy Compared With Stereotactic Radiosurgery for Brain Metastases From Lung Cancer: Experience at a Single-Institution. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.723] [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]
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Miyawaki D, Mukumoto N, Ejima Y, Yoshida K, Ishihara T, Kiyota N, Saito M, Otsuki N, Nibu K, Sasaki R. 2842 Radiation induced hypothyroidism in squamous cell carcinoma of the head and neck: A dose-volume histogram analysis. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31582-9] [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]
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36
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Uehara K, Ogata T, Nakayama M, Shinji T, Nishimura H, Masutani T, Ishihara T, Ejima Y, Sasaki R. SU-E-T-145: Beam Characteristics of Flattening Filter Free Beams Including Low Dose Rate Setting. Med Phys 2015. [DOI: 10.1118/1.4924507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Uchiyama H, Ito T, Sasaki R, Kozuka H. Preparation of metal oxide thin films from organic-additive-free aqueous solutions by low-speed dip-coating. RSC Adv 2015. [DOI: 10.1039/c4ra16810k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Transparent, crack-free SnO2 and TiO2 precursor films were obtained from organic-additive-free aqueous solutions by low-speed dip-coating. The precursor films were crystallized to SnO2 and TiO2 by the heat treatment at 700 °C for 10 min in air.
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Inagaki T, Kimura A, Hagiwara A, Sasaki R, Kobayashi K, Inaka A, Makishi G. Clinical decision rule for cervical magnetic resonance imaging in suspected cervical spinal cord injury without bony injury is useful in predicting severity of cervical stenosis. Crit Care 2015. [PMCID: PMC4470648 DOI: 10.1186/cc14395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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39
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Harada A, Sasaki R, Miyawaki D, Yoshida K, Nishimura H, Ejima Y, Kitajima K, Saito M, Otsuki N, Nibu KI. Treatment outcomes of the patients with early glottic cancer treated with initial radiotherapy and salvaged by conservative surgery. Jpn J Clin Oncol 2014; 45:248-55. [DOI: 10.1093/jjco/hyu203] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Sasaki R, Matsumine H, Watanabe Y, Yamato M, Ando T. Surgical procedure of extracting teeth for obtaining dental pulp for regenerative medicine in swine. Lab Anim 2014; 49:172-6. [PMID: 25448868 DOI: 10.1177/0023677214560002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Dental pulp is a potential source of cells that can be used in cell replacement therapy for various nerve disorders, including stroke, spinal cord injury, and peripheral nerve defect. However, the validation of an animal model closely related to humans is needed in translational research. The miniature pig is a suitable experimental model in maxillofacial surgery, because its anatomical structure and size are similar to those of humans. However, the swine tooth is extremely long. The routine closed extraction procedure for harvesting dental pulp tissue causes root fracture. This report describes the details of a surgical procedure for tooth extraction. Four healthy 7-8-month-old male NIBS miniature pigs were used. Two mandibular deciduous right incisors (Di1 and Di2) were extracted in order to obtain dental pulp tissue. Gingival envelope incision with vertical-releasing incision was performed, and a full-thickness mucoperiosteal flap was made. The buccal alveolar bone was exposed and removed by osteotomy. Di1 and Di2 were extracted. Dental pulp tissue was obtained from these extracted teeth by splitting hard tissue. In this procedure, 9.8 ± 2.5 × 10(5) cells were obtained from the mandibular Di1 and Di2 (n = 4).
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Miyawaki D, Ejima Y, Uezono H, Yoshida K, Nishimura H, Otsuki N, Nibu K, Sasaki R. Result of Multimodal Treatment Including Radiation Therapy for Squamous Cell Carcinomas of Maxillary Sinus: A Retrospective Study. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tokunaga S, Tachihara M, Koyama H, Ejima Y, Shinke H, Tamura D, Otera H, Kobayashi K, Funada Y, Sasaki R, Ohno Y, Nishimura Y. A Retrospective Study of Risk Factors for Radiation Pneumonitis of Definitive Chemoradiotherapy for the Treatment of Locally Advanced Lung Cancer By Emphysema Quantification. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu348.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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43
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Toyomasu Y, Demizu Y, Hashimoto N, Takagi M, Mima M, Terashima K, Fujii O, Jin D, Suga M, Takada A, Ii N, Niwa Y, Sasaki R, Murakami M, Hishikawa Y, Abe M, Nomoto Y, Sakuma H, Fuwa N. Treatment Outcomes of Particle Therapy Using Protons or Carbon Ions for Locally Advanced Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1695] [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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44
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Sakairi M, Sasaki R, Kaneko A, Seki Y, Nagasawa D. Evaluation of metal cation effects on galvanic corrosion behavior of the A5052 aluminum alloy in low chloride ion containing solutions by electrochemical noise impedance. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Tanaka C, Hikihara Y, Ando T, Ohkawara K, Usui C, Sasaki R, Tanaka S. Relationship Between Exercise And Daily Physical Activity With Physical Fitness In Preschool Children. Med Sci Sports Exerc 2014. [DOI: 10.1249/01.mss.0000493531.07688.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Sasaki R, Hossain MZ, Abe N, Uchigashima M, Goto T. Development of an analytical method for the determination of sterigmatocystin in grains using LCMS after immunoaffinity column purification. Mycotoxin Res 2014; 30:123-9. [PMID: 24696064 DOI: 10.1007/s12550-014-0196-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 03/14/2014] [Accepted: 03/17/2014] [Indexed: 11/29/2022]
Abstract
The mycotoxin sterigmatocystin (STC) is produced mainly by some Aspergillus and Penicillium fungi; it naturally contaminates cereals, peanuts, and products derived from these crops, and is both mutagenic and carcinogenic. As an intermediate of aflatoxin (AF) biosynthesis, its structure is similar to that of AF. Although immunoaffinity columns (IACs) are a popular approach to sample clean-up, no IAC is commercially available for STC, but a commercially available IAC for AF shows cross reactivity to STC. We here developed a new method for analyzing STC in grains using such an IAC and liquid chromatography mass spectrometry (LCMS), and validated this method using six different grains. The STC limit of detection (signal-to-noise ratio, S/N = 3) was 2.5 pg (1.0 μg/kg in the product), and the calibration curve was linear in the range of 7.5-375 pg (3.0-150 μg/kg in the product). The within-day recovery of STC from samples spiked with STC at 5.0 and 50 μg/kg was 83.2-102.5% and the RSDr (relative standard deviation of repeatability) of these samples was 1.9-6.5%; the RSDr of STC-pretreated grain samples was 3.1-14.0%. Average recovery of STC from samples spiked with STC in the range of 5.0-100 μg/kg STC was 83.2-102.5%, with an RSDr of 0.24-6.5%; the RSDr of STC-pretreated grain samples was 2.4-14.0%. In an intermediate precision study, the average STC recovery from STC-spiked samples by three analysts was 95.2-107.5%, with RSDRi (intermediate precision) of 4.0-7.1%; the RSDRi of the STC-pretreated samples was 4.8-10.4%. Thus, the proposed method was effective for STC analysis in grains, and holds potential for a novel application of a commercial IAC, intended for AFs, in STC analysis.
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Sasaki R, Yukio U, Eri F. DIFFERENCES IN THE MUSCLE ONSET TIMING BETWEEN LANDING POSTURES DECIDED BEFORE AND DURING JUMP-LANDING. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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48
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Sasaki R, Akasaka H, Miyawaki D, Sulaiman N, Demizu Y, Yamada S, Murakami M, Fukumoto T. EP-1435: Inra-abdomical space modulated radiotherapy: Safety and efficacy of absorbable spacer in particle therapy. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31553-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Akasaka H, Sasaki R, Takayama I, Nakahana M, Sulaiman N, Miyawaki D, Yoshida K, Ejima Y, Uezono H, Mizushina Y. EP-1841: A novel radiosensitizer, monogalactosyl diacylglycerol, enhanced the cytotoxic effects for the pancreatic cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31959-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Mima M, Demizu Y, Jin D, Hashimoto N, Takagi M, Terashima K, Fujii O, Niwa Y, Akagi T, Daimon T, Hishikawa Y, Abe M, Murakami M, Sasaki R, Fuwa N. Particle therapy using carbon ions or protons as a definitive therapy for patients with primary sacral chordoma. Br J Radiol 2013; 87:20130512. [PMID: 24288399 DOI: 10.1259/bjr.20130512] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE This study retrospectively evaluated the efficacy and toxicity of particle therapy using carbon ions or protons for primary sacral chordomas. METHODS We evaluated 23 patients with primary sacral chordoma treated with carbon ion therapy (CIT) or proton therapy (PT) between July 2005 and June 2011 at the Hyogo Ion Beam Medical Center, Hyogo, Japan. The median patient age was 72 years. 14 patients were treated with 70.4 Gy equivalents (GyE) in 16 fractions and 9 were treated with 70.4 GyE in 32 fractions. CIT was used for 16 patients, and PT was used for 7 patients. RESULTS The median follow-up period was 38 months. At 3 years, local control (LC), overall survival (OS) and progression-free survival (PFS) for all patients were 94%, 83% and 68%, respectively. The log-rank test revealed that male sex was significantly related to better PFS (p=0.029). No other factors, including dose fractionation and ion type, were significant for LC, OS or PFS. In nine patients, ≥ Grade 3 acute dermatitis was observed, and ≥ Grade 3 late toxicities were observed in nine patients. The 32-fraction protocol reduced severe toxicities in both the acute and late phases compared with the 16-fraction protocol. CONCLUSION Particle therapy for patients with sacral chordoma showed favourable LC and OS. Severe toxicities were successfully reduced by modifying the dose fractionation and treatment planning in the later treatment era. Thus, this therapeutic modality should be considered useful and safe. ADVANCES IN KNOWLEDGE This is the first study including both CIT and PT for sacral chordomas.
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