Updated on 2026/04/09

写真a

 
SAKAI Masato
 
Title
Professor

Research Areas

  • Humanities & Social Sciences / Cultural anthropology and folklore

  • Humanities & Social Sciences / Archaeology

Graduate School

  • The University of Tokyo, Graduate School, Division of General Culture, cultural anthropology

    Doctor's Course, 2005.03, Accomplished credits for doctoral program

 

Papers

  • AI- accelerated Nazca survey nearly doubles the number of known figurative geoglyphs and sheds light on their purpose, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 121(40) e2407652121, 2024.10

    Sakai, M; Sakurai, A; Lu, SY; Olano, J; Albrecht, CM; Hamann, HF; Freitag, M

    Single Author

  • Monumental Architecture, Stars, and Mounds at the Temple of Pacopampa: The Rising Azimuth of the Pleiades and Changing Concepts of Landscape., Perspectives on Early Andean Civilization in Peru: Interaction, Authority, and Socioeconomic Organization during the First and Second Millennia BC, 129-148, 2019.12

    Masato Sakai, Shinpei Shibata, Toshihiro Takasaki, Juan Pablo Villanueva, Yuji Seki

    Multiple Authorship (Including Foreigners)

  • SGLT2 inhibitor requires co-administration with diuretics to effectively reduce interstitial fluid retention: the DAPA-BODY trial, HYPERTENSION RESEARCH, 49(2) 499-507, 2026.02

    Masuda, T; Asakura-Kinoshita, M; Oka, K; Ohara, K; Sakai, M; Miura, M; Misawa, K; Hirai, K; Morinari, M; Akimoto, T; Shimada, K; Nagata, D; Morishita, Y

    Single Author

  • Urinary β2-microglobulin as a Potential Biomarker for Early Treatment Selection: A Patient with Severe IgG4-related Tubulointerstitial Nephritis, INTERNAL MEDICINE, 65(3) 457-463, 2026

    Taniguchi, N; Sakai, M; Masuda, T; Otsuki, C; Asakura-Kinoshita, M; Misawa, K; Oe, K; Ono, K; Wakabayashi, N; Oka, K; Hishida, E; Ono, Y; Akimoto, T; Nagata, D

    Single Author

  • Factors associated with the use of important human antimicrobials in Japanese small-animal clinics, FRONTIERS IN VETERINARY SCIENCE, 12 , 2025.03

    Makita, K; Yoshida, M; Ukita, M; Matsuoka, T; Sakai, M; Tamura, Y

    Single Author

  • Clinicopathological Study on Endothelial Injury in Severe Glomerular Microangiopathy Induced by Ramucirumab, INTERNAL MEDICINE, 64(13) 2024-2030, 2025

    Sakai, M; Watanabe, M; Hayashi, Y; Sugano, M; Horiguchi, T; Nishikawa, S; Yamaguchi, A; Naiki, H; Okada, H; Masuda, T; Yoshida, H

    Single Author

  • A case of immunoglobulin G4-related retroperitoneal fibrosis and hypophysitis with antecedent respiratory disease followed by spontaneous remission and recurrence, MODERN RHEUMATOLOGY CASE REPORTS, 8(1) 163-171, 2023.12

    Sakai, M; Ohno, Y; Kozuki, N; Kawasaki, Y; Yoshida, M; Ikeda, H; Konishi, J; Maeda, T; Sugano, M; Kawakami, S; Ito, I; Yamaguchi, A; Naiki, H; Notohara, K; Akamizu, T; Kawano, M; Yoshida, H

    Single Author

  • A possible manifestation of pancreas divisum-pancreatic pseudocyst in an infant with no apparent history of pancreatitis: a case report, SURGICAL CASE REPORTS, 9(1) , 2023.09

    Baba, T; Yamazaki, T; Sakai, M; Matshuda, K; Amaya, K; Takatsuki, M; Okada, Y

    Single Author

  • Accelerating the discovery of new Nasca geoglyphs using deep learning, JOURNAL OF ARCHAEOLOGICAL SCIENCE, 155 , 2023.07

    Sakai, M; Lai, YR; Canales, JO; Hayashi, M; Nomura, K

    Single Author

  • Prevalence and Risk Factors of Frailty Using Fried Frailty Phenotype Questionnaire among Older People in a Depopulated Area: A Cross-Sectional Study, INTERNATIONAL JOURNAL OF GERONTOLOGY, 16(3) 231-236, 2022.07

    Onishi, H; Mizukami, Y; Tsubouchi, H; Hirobe, T; Kishimoto, T; Ikeda, R; Shimizu, R; Kawahara, C; Niwa, A; Konoshita, N; Ito, Y; Sakai, M; Okutsu, Y; Yamamura, O

    Single Author

  • Tres Palos Revisited: Understanding the Middle Horizon in the Rio Grande de Nasca Drainage, LATIN AMERICAN ANTIQUITY, 33(2) 425-431, 2022.06

    Matsumoto, Y; Olano, J; Sakai, M

    Single Author

  • Tres Palos Revisited: Understanding the Middle Horizon in the Rio Grande de Nasca Drainage, Latin American Antiquity, 1-7, 2022.01

    Yuichi Matsumoto , Jorge Olano , Masato Sakai

    Multiple Authorship (Including Foreigners)

  • Current Status of Antimicrobial Drug Use in Japanese Companion Animal Clinics and the Factors Associated With Their Use, FRONTIERS IN VETERINARY SCIENCE, 8 , 2021.09

    Makita, K; Sugahara, N; Nakamura, K; Matsuoka, T; Sakai, M; Tamura, Y

    Single Author

  • Identifying the bird figures of the Nasca pampas: An ornithological perspective, JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS, 26 , 2019.08

    Eda, M; Yamasaki, T; Sakai, M

    Single Author

  • Geoglyphs and Ceremonial Centers in Nasca : Dynamics of Ideology and Power in the Andean Civilization, 69(1) 63-72, 2017.06

    Single Author

  • Excavations at La Ventilla, south coast of Peru, 20 95-106, 2017

    Multiple Authorship (Including Foreigners)

  • Origin of Boundary Populations in Medaka (<i>Oryzias latipes</i> Species Complex), ZOOLOGICAL SCIENCE, 33(2) 125-131, 2016.04

    Takehana, Y; Sakai, M; Narita, T; Sato, T; Naruse, K; Sakaizumi, M

    Single Author

  • Control of the Development and Prevalence of Antimicrobial Resistance in Bacteria of Food Animal Origin in Japan: A New Approach for Risk Management of Antimicrobial Veterinary Medicinal Products in Japan, FOODBORNE PATHOGENS AND DISEASE, 11(3) 171-176, 2014.03

    Asai, T; Hiki, M; Ozawa, M; Koike, R; Eguchi, K; Kawanishi, M; Kojima, A; Endoh, YS; Hamamoto, S; Sakai, M; Sekiya, T

    Single Author

  • "Comparative Studies of Ancient American Civilizations" Project : Its Purpose and Expected Research Achievements, 17 119-127, 2014

    Multiple Authorship (Only Japanese)

  • How did descriptions of ancient America change in revised high-school history books, 16 85-100, 2013

    Multiple Authorship (Only Japanese)

  • The Complete Mitochondrial Genome of <i>Dugesia japonica</i> (Platyhelminthes; Order Tricladida), ZOOLOGICAL SCIENCE, 29(10) 672-680, 2012.10

    Sakai, M; Sakaizumi, M

    Single Author

  • Ethnology and climate change : A case study of neighboring areas of the Nasca Pampas on the south coast of Peru, The Quaternary research, 51(4) 231-237, 2012.08

    Single Author

  • May-Thurner syndrome resulting in acute iliofemoral deep vein thrombosis during the second trimester of pregnancy, JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH, 38(8) 1106-1110, 2012.08

    Nakajima, Y; Masaoka, N; Tsuzuki, Y; Morooka, M; Sakai, M

    Single Author

  • Congenital brain tumor: Fetal case of congenital germ cell intracranial tumor, PEDIATRICS INTERNATIONAL, 54(2) 282-285, 2012.04

    Kurishima, C; Wada, M; Sakai, M; Kawakami, M; Kondo, T; Tamura, M; Senzaki, H

    Single Author

  • Geographic diversity of <i>Dugesia japonica</i> and <i>Dugesia ryukyuensis</i>, GENES & GENETIC SYSTEMS, 86(6) 419, 2011.12

    Sakai, M; Sakaizumi, M

    Single Author

  • Successful management of pregnancy and delivery in a woman with multiple coronary stenoses of unknown cause, JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH, 37(12) 1847-1850, 2011.12

    Nakajima, Y; Masaoka, N; Tashiro, H; Chiba, J; Sakai, M

    Single Author

  • Optimal temperature range for low-temperature preservation of dissociated neonatal rat cardiomyocytes, CRYOBIOLOGY, 63(3) 279-284, 2011.12

    Uchida, T; Nagayama, M; Taira, T; Shimizu, K; Sakai, M; Gohara, K

    Single Author

  • Guidelines for obstetrical practice in Japan: Japan Society of Obstetrics and Gynecology (JSOG) and Japan Association of Obstetricians and Gynecologists (JAOG) 2011 edition, JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH, 37(9) 1174-1197, 2011.09

    Minakami, H; Hiramatsu, Y; Koresawa, M; Fujii, T; Hamada, H; Iitsuka, Y; Ikeda, T; Ishikawa, H; Ishimoto, H; Itoh, H; Kanayama, N; Kasuga, Y; Kawabata, M; Konishi, I; Matsubara, S; Matsuda, H; Murakos...

    Single Author

  • Pheochromocytoma-related cardiomyopathy during the antepartum period in a preterm pregnant woman, JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH, 37(7) 908-911, 2011.07

    Nakajima, Y; Masaoka, N; Sodeyama, M; Tsuduki, Y; Sakai, M

    Single Author

  • Rhabdomyolysis caused by tocolytic therapy with oral ritodrine hydrochloride in a pregnant woman with placenta previa, JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH, 37(6) 629-632, 2011.06

    Nakajima, Y; Masaoka, N; Tsuduki, Y; Honda, N; Sakai, M

    Single Author

  • Construction Period of the Nasca Lines in the Pampa of Nasca, Quarterly journal of geography, 62 239-242, 2011.01

    Multiple Authorship (Including Foreigners)

  • Monitoring of “Quebrada”, the Dry River Channels, on the Nasca Pampa, Peru., Final Report of the ALOS Research Announcement Programs.(DVD-ROM) 1&2, PI022-1-PI022-7, 2011

    Isao Akojima, Masato Sakai

    Multiple Authorship (Only Japanese)

  • Structure of mitochondrial genome and heteroplasmy in <i>Dugesia japonica</i>, GENES & GENETIC SYSTEMS, 85(6) 397, 2010.12

    Sakai, M; Sakaizumi, M

    Single Author

  • Preliminary Examination for Settlement and Construction Method of Nasca Geoglyphs : Satellite Images and Fieldwork, Journal of the Visualization Society of Japan, 30(117) 38-39, 2010.04

    Multiple Authorship (Including Foreigners)

  • Problems in teaching pre-Columbian American history in Japan: toward a more global 'real world history', Quarterly of archaeological studies, 57(3) 15-19, 2010

    Multiple Authorship (Only Japanese)

  • Evaluating pre-Columbian American history texts in high school world history textbooks, 13 31-39, 2010

    Multiple Authorship (Only Japanese)

  • Origin of the Toyooka-type population in the medaka fish, <i>Oryzias latipes</i>, GENES & GENETIC SYSTEMS, 84(6) 486, 2009.12

    Sakai, M; Naruse, K; Sakaizumi, M

    Single Author

  • Geoglyph and Flood on the Nasca Upland, Peru, Quarterly journal of geography, 61(3) 194-195, 2009.09

    Multiple Authorship (Only Japanese)

  • Studies on ancient America should reach out to the public at large: high-school history books, popularization in mass media, and communication with the general public, (12) 95-103, 2009

    Multiple Authorship (Only Japanese)

  • Preface (Special Contributions : Interdisciplinary Studies of Lines and Geoglyphs of Nasca (1)), Bulletin of Graduate School of Social & Cultural Systems at Yamagata University, (4) 105, 2007.08

    Single Author

  • Research on lines and geoglyphs based on high resolution satellite imaging, Bulletin of Graduate School of Social & Cultural Systems at Yamagata University, (4) 107-138, 2007.08

    Multiple Authorship (Only Japanese)

  • Simultaneous analysis of D- and L-serine in cerebrospinal fluid by use of HPLC, CLINICAL CHEMISTRY, 53(8) 1489-1494, 2007.08

    Sethuraman, R; Krishnamoorthy, MG; Lee, TL; Liu, EHC; Chiang, S; Nishimura, W; Sakai, M; Minami, T; Tachibana, S

    Single Author

  • Extracellular matrix dermatopontin modulates prostate cell growth <i>in vivo</i>, JOURNAL OF ENDOCRINOLOGY, 190(2) 351-361, 2006.08

    Takeuchi, T; Suzuki, M; Kumagai, J; Kamijo, T; Sakai, M; Kitamura, T

    Single Author

  • Growth of lipid droplets and morphological change in cellular shape during adipose differentiation, CELL STRUCTURE AND FUNCTION, 30 34, 2005.06

    Nagayama, M; Uchida, T; Taira, T; Hoshi, T; Shimizu, K; Sakai, M; Gohara, K

    Single Author

  • 「古代ナスカにおける空間配置:観測所、山、祭祀センター、居住センター、地上絵」, 野外民族博物館リトルワールド,リトルワールド研究報告』第13号, 1996.12

    坂井 正人

    Multiple Authorship (Including Foreigners)

  • 「非巫病・継承型男性民間医療従事者と村落祭祀空間構造:鹿児島県大島郡徳之島町の事例により」, 南島史学会,南島史学47号, 1996.04

    坂井 正人

    Multiple Authorship (Including Foreigners)

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Books

  • Peruvian Archaeology. 4, 山形大学ナスカ研究所, 2020

    坂井 正人 , 松本 雄一

  • Peruvian Archaeology. 3, 山形大学ナスカ研究所, 2019

    坂井 正人, 松本雄一

  • Peruvian Archaeology. 2, 山形大学ナスカ研究所, 2015

    北川 忠明, 坂井 正人, 松本 雄一

  • Peruvian Archaeology. 1, 山形大学ナスカ研究所, 2014

    北川 忠明, 坂井 正人, 松本 雄一

Review Papers

  • 世界遺産ナスカの地上絵に関する保護活動と学術研究, シンポジウム「文化遺産国際協力のかたち―世界遺産を未来に伝える日本の貢献―」報告書, 23-26, 2019

    坂井 正人

  • Nazca Lines : Scientific Study and Conservation Activity by Japan, 全国都市清掃会議, 都市清掃 = Journal of Japan Waste Management Association, 71(343) 303-331, 2018.05

    坂井 正人

Grant-in-Aid for Scientific Research

  • Grant-in-Aid for Scientific Research(A),2025.04 - 2030.03

  • Grant-in-Aid for Scientific Research(A),2020.04 - 2025.03

  • Grant-in-Aid for Scientific Research(A),2020.04 - 2021.03

  • Grant-in-Aid for Scientific Research(A),2018.04 - 2020.03

  • Grant-in-Aid for New academic field research(Research areas proposal),2018.04 - 2019.03

  • Grant-in-Aid for International collaborative research accelerating group(International activity support group),2018.04 - 2019.03

  • Grant-in-Aid for New academic field research(Research areas proposal),2018.04 - 2019.03

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Media Coverage

  • Yamagata University team finds 143 ancient geoglyphs in Peru's Nazca grasslands,2019.11

  • 山形大、ペルーで新たな地上絵を発見 AIも活用,2019.11

  • ナスカ地上絵、新たに143点 山形大のグループ、AI活用で研究加速,2019.11

  • 「ナスカの地上絵」具象的な143点発見,2019.11

  • Over 140 New Nazca Lines -Including Strange Humanoids- Discovered in Peru,2019.11

  • Líneas de Nazca en Perú: así son los intrigantes nuevos geoglifos descubiertos con tecnología de última generación,2019.11

  • More Than 140 Nazca Lines Are Discovered in Peruvian Desert,2019.11

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