Papers - Sato, Yasunori

Antiganglioside antibodies are associated with axonal Guillain-Barre syndrome: A Japanese-Italian collaborative study

Sekiguchi, Yukari, Uncini, Antonino, Yuki, Nobuhiro, Misawa, Sonoko, Notturno, Francesca, Nasu, Saiko, Kanai, Kazuaki, Noto, Yu-ichi, Fujimaki, Yumi, Shibuya, Kazumoto, Ohmori, Shigeki, Sato, Yasunori, Kuwabara, Satoshi

JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY 83 ( 1 ) 23 - 28 2012.01

Research paper (scientific journal), Joint Work,  ISSN  0022-3050

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Analysis of 2000 cases treated with gamma knife surgery: validating eligibility criteria for a prospective multi-institutional study of stereotactic radiosurgery alone for treatment of patients with 1-10 brain metastases (JLGK0901) in Japan

Serizawa, T., Higuchi, Y., Nagano, O., Sato, Y., Yamamoto, M., Ono, J., Saeki, N., Miyakawa, A. and Hirai, T.

J Radiosurg SBRT 2 ( 1 ) 19 - 27 2012

Joint Work,  ISSN  2156-4639

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Objective: The Japan Leksell Gamma Knife (JLGK) Society has conducted a prospective multi-institute study (JLGK0901, UNIN000001812) for selected patients in order to prove the effectiveness of stereotactic radiosurgery (SRS) alone using the gamma knife (GK) for 1-10 brain lesions. Herein, we verify the validity of 5 major patient selection criteria for the JLGK0901 trial. Materials and Methods: Between 1998 and 2010, 2246 consecutive cases with 10352 brain metastases treated with GK were analyzed to determine the validity of the following 5 major JLGK0901 criteria; 1) 1-10 brain lesions, 2) less than 10 cm(3) volume of the largest tumor, 3) no more than 15 cm(3) total tumor volume, 4) no cerebrospinal fluid (CSF) dissemination, 5) Karnofsky performance status (KPS) score >/=70. Results: For cases with >10 brain metastases, salvage treatments for new lesions were needed more frequently. The tumor control rate for lesions larger than 10 cm(3) was significantly lower than that of tumors <10 cm(3). Overall, neurological and qualitative survivals (OS, NS, QS) of cases with >15 cm(3) total tumor volume or positive magnetic resonance imaging findings of CSF were significantly poorer. Outcomes in cases with KPS <70 were significantly poorer in terms of OS. Conclusion: Our retrospective results of 2246 GK-treated cases verified the validity of the 5 major JLGK0901 criteria. The inclusion criteria for the JLGK0901 study are appearently good indications for SRS.

Markedly reduced axonal potassium channel expression in human sporadic amyotrophic lateral sclerosis: An immunohistochemical study

Shibuya, Kazumoto, Misawa, Sonoko, Arai, Kimihito, Nakata, Miho, Kanai, Kazuaki, Yoshiyama, Yasumasa, Ito, Kimiko, Isose, Sagiri, Noto, Yu-ichi, Nasu, Saiko, Sekiguchi, Yukari, Fujirnaki, Yumi, Ohmori, Shigeki, Kitamura, Hiroshi, Sato, Yasunori, Kuwabara, Satoshi

EXPERIMENTAL NEUROLOGY 232 ( 2 ) 149 - 153 2011.12

Research paper (scientific journal), Joint Work,  ISSN  0014-4886

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Urinary dysfunction in early and untreated Parkinson's disease

Uchiyama, Tomoyuki, Sakakibara, Ryuji, Yamamoto, Tatsuya, Ito, Takashi, Yamaguchi, Chiharu, Awa, Yusuke, Yanagisawa, Mitsuru, Higuchi, Yoshinori, Sato, Yasunori, Ichikawa, Tomohiko, Yamanishi, Tomonori, Hattori, Takamichi, Kuwabara, Satoshi

JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY 82 ( 12 ) 1382 - 1386 2011.12

Research paper (scientific journal), Joint Work,  ISSN  0022-3050

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Activity-dependent changes in impulse conduction of single human motor axons: A stimulated single fiber electromyography study

Noto, Yu-ichi, Misawa, Sonoko, Kanai, Kazuaki, Sato, Yasunori, Shibuya, Kazumoto, Isose, Sagiri, Nasu, Saiko, Sekiguchi, Yukari, Fujimaki, Yumi, Ohmori, Shigeki, Nakagawa, Masanori, Kuwabara, Satoshi

CLINICAL NEUROPHYSIOLOGY 122 ( 12 ) 2512 - 2517 2011.12

Research paper (scientific journal), Joint Work,  ISSN  1388-2457

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Inter-observer and intra-observer reliabilities of the Japanese Ministry of Health, Labor and Welfare type classification system for osteonecrosis of the femoral head

Nakamura, J., Kishida, S., Harada, Y., Iida, S., Oinuma, K., Yamamoto, S., Nakajima, T., Takazawa, M., Shigemura, T., Ohtori, S., Sato, Y. and Takahashi, K.

Mod Rheumatol 21 ( 5 ) 488 - 94 2011.10

Joint Work,  ISSN  1439-7595

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The aim of this study was to clarify the reproducibility of the Japanese Ministry of Health, Labor and Welfare (JMHLW) type classification for osteonecrosis of the femoral head. We performed inter-observer and intra-observer trials using 40 sets of magnetic resonance imagings, 20 of which were produced by a 0.5 Tesla (T) superconductive unit and the other 20 produced by a 1.5 T unit, in patients with non-collapsed and asymptomatic osteonecrosis of the femoral head (JMHLW stage 1 or 2). The JMHLW type classification (A, B, C1, or C2) was determined from T1-weighted coronal images at the center of the femoral head. Six orthopedic surgeons independently assessed all 40 images twice, with an interval of 4-5 weeks between sessions. Regarding inter-observer reliability, the percent agreement was 85% and weighted kappa was 0.709 for 0.5 T, versus a percent agreement of 82% and weighted kappa of 0.724 for 1.5 T. Regarding intra-observer reliability, the percent agreement was 82% and weighted kappa was 0.780 for 0.5 T versus a percent agreement of 80% and weighted kappa of 0.800 for 1.5 T. Inter-observer and intra-observer reliabilities did not differ significantly between the 0.5 and 1.5 T units. The JMHLW type classification provided high inter-observer and intra-observer reliabilities.

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A New Classification of Recursive Partitioning Analysis (RPA) Class II Patients with Radiosurgically Treated Brain Metastases

Yamamoto, Masaaki, Sato, Yasunori, Serizawa, Toru, Kawabe, Takuya, Higuchi, Yoshinori, Nagano, Osamu, Barfod, Bierta E.

JOURNAL OF NEUROSURGERY 115 ( 2 ) A448 - A448 2011.08

Research paper (international conference proceedings), Joint Work,  ISSN  0022-3085

Prescription Trends for Oral Antihyperglycemic Drugs (OHDs) in Japan - The Influence of Drug Interaction Alerts Concerning Hypoglycemia in Using Dipeptidyl Peptidase-4 (DPP-4) Inhibitor

Sato, Daisaku, Masuda, Sachiko, Sato, Yasunori, Kimura, Hiromichi

PHARMACOEPIDEMIOLOGY AND DRUG SAFETY 20   S102 - S102 2011.08

Research paper (international conference proceedings), Joint Work,  ISSN  1053-8569

Synergistic effect of non-transmissible Sendai virus vector encoding the c-myc suppressor FUSE-binding protein-interacting repressor plus cisplatin in the treatment of malignant pleural mesothelioma

Kitamura, Atsushi, Matsushita, Kazuyuki, Takiguchi, Yuichi, Shimada, Hideaki, Tada, Yuji, Yamanaka, Makako, Hiroshima, Kenzo, Tagawa, Masatoshi, Tomonaga, Takeshi, Matsubara, Hisahiro, Inoue, Makoto, Hasegawa, Mamoru, Sato, Yasunori, Levens, David, Tatsumi, Koichiro, Nomura, Fumio

CANCER SCIENCE 102 ( 7 ) 1366 - 1373 2011.07

Research paper (scientific journal), Joint Work,  ISSN  1347-9032

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Blood ammonia and lactate levels on hospital arrival as a predictive biomarker in patients with out-of-hospital cardiac arrest

Shinozaki, Koichiro, Oda, Shigeto, Sadahiro, Tomohito, Nakamura, Masataka, Hirayama, Yo, Watanabe, Eizo, Tateishi, Yoshihisa, Nakanishi, Kazuya, Kitamura, Nobuya, Sato, Yasunori, Hirasawa, Hiroyuki

RESUSCITATION 82 ( 4 ) 404 - 409 2011.04

Research paper (scientific journal), Joint Work,  ISSN  0300-9572

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Elevated CSF TDP-43 levels in amyotrophic lateral sclerosis: Specificity, sensitivity, and a possible prognostic value

Noto, Yu-Ichi, Shibuya, Kazumoto, Sato, Yasunori, Kanai, Kazuaki, Misawa, Sonoko, Sawai, Setsu, Mori, Masahiro, Uchiyama, Tomoyuki, Isose, Sagiri, Nasu, Saiko, Sekiguchi, Yukari, Fujimaki, Yumi, Kasai, Takashi, Tokuda, Takahiko, Nakagawa, Masanori, Kuwabara, Satoshi

AMYOTROPHIC LATERAL SCLEROSIS 12 ( 2 ) 140 - 143 2011.03

Research paper (scientific journal), Joint Work,  ISSN  1748-2968

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New Uncoated Vascular Prosthesis Reduces Mediastinal Tube Drainage After Thoracic Aortic Surgery

Tabata, Minoru, Shimokawa, Tomoki, Fukui, Toshihiro, Manabe, Susumu, Sato, Yasunori, Takanashi, Shuichiro

ANNALS OF THORACIC SURGERY 91 ( 3 ) 899 - 902 2011.03

Research paper (scientific journal), Joint Work,  ISSN  0003-4975

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Genome-Wide Association Study on Overall Survival of Advanced Non-small Cell Lung Cancer Patients Treated with Carboplatin and Paclitaxel

Sato, Yasunori, Yamamoto, Noboru, Kunitoh, Hideo, Ohe, Yuichiro, Minami, Hironobu, Laird, Nan M., Katori, Noriko, Saito, Yoshiro, Ohnami, Sumiko, Sakamoto, Hiromi, Sawada, Jun-ichi, Saijo, Nagahiro, Yoshida, Teruhiko, Tamura, Tomohide

JOURNAL OF THORACIC ONCOLOGY 6 ( 1 ) 132 - 138 2011.01

Research paper (scientific journal), Joint Work,  ISSN  1556-0864

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A Modified Maximum Contrast Method for Unequal Sample Sizes in Pharmacogenomic Studies

Nagashima, Kengo, Sato, Yasunori, Hamada, Chikuma

STATISTICAL APPLICATIONS IN GENETICS AND MOLECULAR BIOLOGY 10 ( 1 ) 149 - 153 2011

Research paper (scientific journal), Joint Work,  ISSN  1544-6115

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REV1 genetic polymorphisms and breast cancer risk in Thai Women

Sangrajrang S., Sato Y., Sakamoto H., Ohnami S., Khuhaprema T., Yoshida T.

Genes and Environment (Genes and Environment)  33 ( 4 ) 167 - 172 2011

ISSN  18807046

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Genomic DNA is exposed to a constant insult from sources that are both endogenous and exogenous to the cell. REV1 protein, a eukaryotic member of Y family of DNA polymerases, is involved in the tolerance to such DNA damages by providing a translesion DNA synthesis. Here, we examined possible association between REV1 polymorphisms and breast cancer risk in Thai women. Five single nucleotide polymorphisms (SNPs) REV1 (rs3792152, rs3087395, rs3792137, rs959929, rs3087386) were genotyped. The study population consists of 570 patients with histopathologically confirmed breast cancer and 497 controls. Association of genotypes with breast cancer risk was evaluated using multivariate logistic regression to estimate odds ratios (OR) and their 95z confidence intervals (95zCI). Our results revealed that the heterozygote carrier of REV1 SNP (rs3087395) was associated with breast cancer risk with OR=1.59 (95 zCI: 1.11-2.29). In addition, an increased risk was observed for homozygotes at the REV1 SNP (rs 959929) with the OR=1.52 (95zCI: 1.01-2.29). A stratified analysis suggested that the association between the REV1 SNPs and breast cancer is different by the menopausal status. The present results suggest thatREV1 polymorphisms are likely to play a modifying role in the individual susceptibility to breast cancer among Thai women. © The Japanese Environmental Mutagen Society.

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Cytokine and chemokine profiles in neuromyelitis optica: significance of interleukin-6

Uzawa, Akiyuki, Mori, Masahiro, Arai, Kimihito, Sato, Yasunori, Hayakawa, Sei, Masuda, Saeko, Taniguchi, Junko, Kuwabara, Satoshi

MULTIPLE SCLEROSIS 16 ( 12 ) 1443 - 1452 2010.12

Research paper (scientific journal), Joint Work,  ISSN  1352-4585

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Gamma Knife surgery as sole treatment for multiple brain metastases: 2-center retrospective review of 1508 cases meeting the inclusion criteria of the JLGK0901 multi-institutional prospective study

Serizawa, Toru, Yamamoto, Masaaki, Sato, Yasunori, Higuchi, Yoshinori, Nagano, Osamu, Kawabe, Takuya, Matsuda, Shinji, Ono, Junichi, Saeki, Naokatsu, Hatano, Manabu, Hirai, Tatsuo

JOURNAL OF NEUROSURGERY 113   48 - 52 2010.12

Research paper (scientific journal), Joint Work,  ISSN  0022-3085

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A set of genes associated with the interferon-gamma response of lung cancer patients undergoing alpha-galactosylceramide-pulsed dendritic cell therapy

Okita, Kohsuke, Motohashi, Shinichiro, Shinnakasu, Ryo, Nagato, Kaoru, Yamasaki, Kazuki, Sato, Yasunori, Kitamura, Hiroshi, Hijikata, Atsushi, Yamashita, Masakatsu, Shimizu, Kanako, Fujii, Shin-ichiro, Ohara, Osamu, Taniguchi, Masaru, Sakaida, Isao, Nakayama, Toshinori

CANCER SCIENCE 101 ( 11 ) 2333 - 2340 2010.11

Research paper (scientific journal), Joint Work,  ISSN  1347-9032

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Clinical research design and statistical analysis for personalized medicine

Sato Y., Nagashima K., Hamada C.

Japanese Journal of Clinical Pharmacology and Therapeutics (Japanese Journal of Clinical Pharmacology and Therapeutics)  41 ( 6 ) 291 - 300 2010.11

ISSN  03881601

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Interindividual variation in drug response among patients is well known and poses a serious problem in medicine. The variation could be due to multiple factors including those of the host (e. g., age, genetic and environmental factors) and disease (pathophysiological phenotypes). The complex interplay of these factors may influence pharmacodynamic responses such as adverse effects and efficacy, as well as pharmacokinetic manifestations. However, at present, few biomarkers can predict responders and non-responders, and those who might experience adverse reactions for the same medication and dose. In order to realize personalized medicine, rigorous development of biomarkers is required to identify new biomarkers that may change clinical practice. In this review, we first introduce how biomarkers may be used as targets and the difference between prognostic and predictive markers. Next, we focus on confirmatory clinical trial designs for biomarker development and introduce their application in actual studies. Finally, we introduce exploratory statistical screening techniques for detecting biomarkers in phase I and pharmacokinetics studies.

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Genetic polymorphisms in folate and alcohol metabolism and breast cancer risk: a case-control study in Thai women

Sangrajrang, Suleeporn, Sato, Yasunori, Sakamoto, Hiromi, Ohnami, Sumiko, Khuhaprema, Thiravud, Yoshida, Teruhiko

BREAST CANCER RESEARCH AND TREATMENT 123 ( 3 ) 885 - 893 2010.10

Research paper (scientific journal), Joint Work,  ISSN  0167-6806

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