Department of Forensic Medicine, Tokai University School of Medicine


Motoki Osawa, Ph.D., M.D.
Senior Professor
Yu Kakimoto, Ph.D., M.D.
Yasuhiro Kakiuchi, Ph.D., M.D.
Assistant Professor
Ryoko Nagao, Ph.D., M.D.
Contract Assistant Professor
Eriko Ochiai,Ph.D.,M.T.
Guest Professor
Kiyoshi Minaguchi, Ph.D., D.D.S
Medical Technologist
Yoshihisa Seto
Akio Tsuboi
Yutaka Matsushima
Guest Researcher
Tomonori Tamura
Yu Kaneko
Administrative Staff
2 people

Major research fields

  • Pathogenesis of sudden and unexpected deaths due to unknown causes
  • Forensic genetics. 1) Kinship analysis. 2) Physical traits originated by DNA polymorphism, particularly for plasma proteins and the blood group.
  • Traffic injuries. 1) Complications. 2) Natural deaths on the wheel.

Publications in the recent five years

  • Osawa M, Inaoka Y, Nakatome M, Miyashita K, Ochiai E, Kakimoto Y, Satoh F, Matoba R. Association analysis of CYP2A6 polymorphism to sudden and unexpected death of infants. Integrative Molecular Medicine, 2015; 2(2): 142-144
  • Kakimoto Y, Kamiguchi H, Ochiai E, Satoh F, Osawa M. MicroRNA Stability in PostMortem FFPE Tissues: Quantitative Analysis Using Autoptic Samples from Acute Myocardial Infarction Patients. PLOS ONE.
  • Miyashita K, Ochiai E, Tamura T, Osawa M. Kinship Analysis Based on SNP Data from the HID-Ion AmpliSeqTM Identity Panel. Journal of Forensic Investigation, 2015; 3(2): 6.
  • Satoh F, Kakimoto Y, Miyashita K, Tsuboi A, Seto Y, Osawa M. Implication of meconium-aspirated lungs in stillborns and neonatal deaths. Austin J Forensic Sci Criminol. 2015; 2(4):1034.
  • Inaoka Y, Osawa M, Mukasa N, Miyashita K, Satoh F, Kakimoto Y. Allelic imbalance of mRNA associated with α2-HS glycoprotein (fetuin-A) polymorphism. Disease Markers, Article ID 865053, 2015.
  • Tamura T, Osawa M, Ochiai E, Suzuki T, Nakamura T. Evaluation of advanced multiplex short tandem repeat systems in pairwise kinship analysis. Leg Med 2015 ; 17(5):320-325.
  • Satoh F, Seto Y, Tsuboi A, Osawa M. Regressive changes of the myocardial sleeves in elderly victims of sudden bathtub death. Forensic Medicine and Anatomy Research, 2015; 3: 57-65.
  • Satoh F, Nakamura T, Hayashi K, Ochiai E, Osawa M. Left ventricular non-compaction of myocardium in forensic autopsy. Journal of Clinical Pathology and Forensic Medicine. 2014; 5(2): 17-22.
  • Tsuboi A, Satoh F, Seto Y, Osawa M. Self-inflicted fatal shotgun wound from a homemade weapon. Leg Med. 2014; 16: 81-83.
  • Osawa M, Inaoka Y, Ochiai E, Hassegawa I, Satoh, F. Variable single C repetitive tract in KCNQ1: Postmortem molecular testing in a sudden and unexpected death. Experimental & Clinical Cardiology. 2014; 20(7): 927-930.
  • Nagata E, Fujii N, Hosomichi K, Mitsunaga S, Suzuki Y, Mashimo Y, Tsukamoto H, Satoh T, Osawa M, Inoue I, Hata A, Takizawa S. Possible Association between Dysfunction of Vitamin D Binding Protein (GC Globulin) and Migraine Attacks. PLOS ONE. 2014; 9(8).
  • Tsuruyama T, Kakimoto Y. Forensic Diagnosis of Acute Myocardial Infarction: Application of Mass Spectrometry. International journal of Forensic Science & Pathology. 2014.
  • Tamura T, Osawa M, Kimura R, Inaoka Y, Tanaka S, Satoh F, Sato I. Evaluation of the allele-sharing approach, known as the IBS method, in kinship analysis. J Forensic Leg Med. 2013; 20(1): 112-116.
  • Satoh F, Osawa M, Hasegawa I , Seto Y, Tsuboi A, “Dead in Hot Bathtub” Phenomenon: Accidental Drowning or Natural Disease? Am J Forensic Med Pathol. 2013; 34(2): 164-168.
  • Saito T, Namera A, Osawa M, Aoki H, Inokuchi S. SPME-GC-MS analysis of α-pyrrolidinovaleorophenone in blood in a fatal poisoning case. Forensic Toxicology. 2013; 31(2): 328-332.
  • Saito T, Namera A, Miura N, Ohta S, Miyazaki S, Osawa M, Inokuchi S. A fatal case of MAM-2201 poisoning. Forensic Toxicology. 2013; 31(2): 333-337.
  • Satoh F, Seto Y, Hasegawa I, Osawa M. Fatal Staphylococcus aureus bacteremia in the Felty syndrome: A maltreatment-suspected case. Legal Medicine. 2012; 14: 246-248.
  • Osawa M, Inaoka Y, Hasegawa I, Satoh F. Postmortem molecular analysis to SIDS victims. Forensic Sci Int Genetics Supplement Series. 2011; 3(1): 263-264.
  • Inaoka Y, Tajima A, Tamura T, Satoh F, Osawa M. Kinship analysis based on SNP data from microarray assay. Forensic Sci Int Genetics Supplement. 2011; 3(1): 275-276.
  • Tamura T, Osawa M, Inaoka Y, Tanaka S, Satoh F, Nakamura T. Re-evaluation of the identical-by-state method in pairwise kinship inference. Forensic Sci Int Genetics Supplement Series. 2011; 3(1): 244-245.
  • Satoh F, Tachibana H, Hasegawa I, Osawa M. Sudden death caused by chronic Chagas disease in a non-endemic country: Autopsy report. Pathol Int. 2010; 60: 225-240.

Department of Forensic Medicine, Tokai University School of Medicine  Shimokasuya 143, Isehara, Kanagawa 259-1193 Japan

Tel 0463-93-1121(Ex. 2630) Fax 0463-92-0284  E-mail (Caution; replace _ to @ in use)