Last Updated :2024/06/14

Affiliations, Positions
Hiroshima University Hospital, Assistant Professor

Basic Information

Educational Backgrounds

  • Kyushu University, Medicine, 1999/04, 2005/03
  • University of Pittsburgh, Graduate School of Public Health, Multidisciplinary Master of Public Health, United States of America, 2013/08, 2015/12
  • Kyoto Prefectural University of Medicine, Japan, 2018/07

Academic Degrees

  • Masster of Public Health, University of Pittsburgh
  • M.D. Ph.D., Kyoto Prefectural University of Medicine

Research Fields

  • Medicine,dentistry, and pharmacy;Society medicine;Epidemiology and preventive medicine
  • Medicine,dentistry, and pharmacy;Society medicine;Legal medicine

Research Keywords

  • natural disaster
  • unnatural death
  • solitary death

Educational Activity

Course in Charge

  1. 2024, Undergraduate Education, Second Semester, Human Relations
  2. 2024, Undergraduate Education, Intensive, Symptomatology, Diagnosis and Treatment
  3. 2024, Undergraduate Education, Intensive, Practice of Medicine I
  4. 2024, Undergraduate Education, Intensive, Practice of Medicine II
  5. 2024, Graduate Education (Master's Program) , Second Semester, Lecture on Practice of General Medicine

Research Activities

Academic Papers

  1. ★, Hyperviscosity syndrome caused by cryoglobulinemia diagnosed by observing the reversible formation of gel upon cooling and warming the patient's serum, Lancet, 402(10415), 1866, 20231124
  2. Laryngopharyngeal Herpes Zoster Without Skin Vesicles Preceded by Intractable Hiccups, MAYO CLINIC PROCEEDINGS, 98(11), 1670-1670, 202311
  3. Estimation of cadaveric age in crime scenes using Raman spectroscopy, JOURNAL OF FORENSIC AND LEGAL MEDICINE, 102, 202402
  4. Gout with Marked Ulnar Deviation Imitating Rheumatoid Arthritis., Internal medicine (Tokyo, Japan), 2022
  5. Impact of the COVID-19 pandemic on the mortality among patients with colorectal cancer in Hiroshima, Japan: A large cancer registry study, CANCER MEDICINE, 12(21), 20554-20563, 202311
  6. Assessing the Influence of the COVID-19 Pandemic on Gastric Cancer Mortality Risk, JOURNAL OF CLINICAL MEDICINE, 13(3), 202402
  7. ★, How the 2018 Japan Floods Impacted Nursing Home Admissions for Older Persons: A Longitudinal Study Using the Long-Term Care Insurance Comprehensive Database, JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION, 24(3), 368-+, 202303
  8. Effect of COVID-19 inpatients with cognitive decline on discharge after the quarantine period: A retrospective cohort study, JOURNAL OF GENERAL AND FAMILY MEDICINE, 24(1), 9-15, 202301
  9. ★, Impact of the early phase of COVID-19 on the trends of isolated bacteria in the national database of Japan: an interrupted time-series analysis, JOURNAL OF INFECTION, 86(2), 147-153, 2023
  10. The impact of early-stage COVID-19 pandemic on the diagnosis and treatment of gastric cancer: A cross-sectional study using a large-scale cancer registry in Hiroshima, Japan., DEN open, 3(1), 2023
  11. A suicide case by hanging without fixing the end of the rope., Legal medicine (Tokyo, Japan), 63, 2023
  12. Increased care-need in older long-term care insurance users after the 2018 Japan Floods: a retrospective cohort study based on the Japanese long-term care insurance claims., Environmental health and preventive medicine, 28, 2023
  13. Focal Neurological Symptoms at Initial Presentation Could Be a Potential Risk Factor for Poor Prognosis Among Patients With Multiple Brain Abscesses by Streptococcus anginosus Group: A Case Report With Literature Review, CUREUS JOURNAL OF MEDICAL SCIENCE, 14(11), 20221130
  14. Bacterial susceptibility changes post national shortage of first cephalosporin in Japan: a longitudinal retrospective database study using interrupted time series analysis, JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE, 30, 348-353, 202209
  15. Clinical utility of computed tomography-based evaluation of trunk muscles in primary sclerosing cholangitis, JAPANESE JOURNAL OF RADIOLOGY, 40(10), 1053-1060, 202210
  16. Duration of infectious viral shedding in patients with mild to moderate COVID-19 treated with REGN-CoV2, JOURNAL OF INFECTION AND CHEMOTHERAPY, 28(7), 912-917, 202207
  17. ★, Discontinuation of long-term care among persons affected by the 2018 Japan Floods: a longitudinal study using the Long-term Care Insurance Comprehensive Database, BMC GERIATRICS, 22(1), 20220301
  18. Alcohol abuse as a potential risk factor of solitary death among people living alone: a cross-sectional study in Kyoto, Japan, BMC PUBLIC HEALTH, 22(1), 2022
  19. Clinical utility of computed tomography-based evaluation of trunk muscles in primary sclerosing cholangitis, JAPANESE JOURNAL OF RADIOLOGY, 40(10), 1053-1060, 2022
  20. Increased prescriptions for irritable bowel syndrome after the 2018 Japan Floods: a longitudinal analysis based on the Japanese National Database of Health Insurance Claims and Specific Health Checkups, BMC GASTROENTEROLOGY, 22(1), 2022
  21. Duration of infectious viral shedding in patients with mild to moderate COVID-19 treated with REGN-CoV2?, JOURNAL OF INFECTION AND CHEMOTHERAPY, 28(7), 912-917, 2022
  22. ★, A Raman algorithm to estimate human age from protein structural variations in autopsy skin samples: a protein biological clock, SCIENTIFIC REPORTS, 11(1), 20210315
  23. Granulocyte Colony-stimulating Factor-induced Aortitis with Lung Injury, Splenomegaly, and a Rash During Treatment for Recurrent Extraosseous Mucinous Chondrosarcoma, INTERNAL MEDICINE, 60(8), 1311-1315, 2021
  24. Population history in Okinawa based on JC virus and ALDH2 genotypes, Sci Rep, 10(1), 7331, 202004
  25. Two patients with Paget-schroetter syndrome that were successfully diagnosed by doppler ultrasonography: Case studies with a literature review, Intern Med, 59(20), 2623-2627, 2020
  26. Relationship between serum prostate-specific antigen and age in cadavers, SAGE Open Med, 16(8), 2020
  27. Estimation of Cadaveric Age by Ultrasonography, DIAGNOSTICS, 10(7), 2020
  28. Successful Treatment of Acute Chest Syndrome with Manual Exchange Transfusion in a Patient with Sickle Beta(+)-thalassemia, INTERNAL MEDICINE, 58(11), 1629-1634, 2019
  29. An Atypical Case of Non-asthmatic Eosinophilic Granulomatosis with Polyangiitis Finally Diagnosed by Tissue Biopsy, INTERNAL MEDICINE, 58(6), 871-875, 20190315
  30. Age estimation based on visual parameters of the skin of cadavers., Skin Research and Technology, 25(4), 532-537, 2019
  31. Primary Signet Ring Cell Carcinoma of Rectum Diagnosed by Boring Biopsy in Combination with Endoscopic Mucosal Resection, CASE REPORTS IN MEDICINE, 2018
  32. Relationship between thyroid hormone levels and age in post-mortem cases, Romanian Journal of Legal Medicine, 26(1), 12-15, 2018
  33. The GP Method can be Effective as a Screening Test Before STR Typing, INTERNATIONAL JOURNAL OF HUMAN GENETICS, 18(1), 22-27, 201803
  34. Isolation and unnatural death of elderly people in the aging Japanese society, SCIENCE & JUSTICE, 56(2), 80-83, 2016
  35. Raman spectroscopy of human skin: looking for a quantitative algorithm to reliably estimate human age., Journal of biomedical optics, 20(6), 2015
  36. Utilization of bone impedance for age estimation in postmortem cases, JOURNAL OF FORENSIC AND LEGAL MEDICINE, 36, 102-107, 2015
  37. Drospirenone detected in postmortem blood of a young woman with pulmonary thromboembolism: A case report and review of the literature, LEGAL MEDICINE, 17(2), 109-115, 2015
  38. Acetaldehyde-induced cytotoxicity involves induction of spermine oxidase at the transcriptional level, TOXICOLOGY, 310, 1-7, 2013
  39. Temporal evolution in peritoneal hemorrhage as depicted by postmortem CT, JOURNAL OF FORENSIC AND LEGAL MEDICINE, 20(5), 548-550, 2013
  40. Estimation of postmortem time based on aorta narrowing in CT imaging, JOURNAL OF FORENSIC AND LEGAL MEDICINE, 20(8), 1075-1077, 2013
  41. A trial of the utilization of stable isotope analysis for the estimation of the geographic origins of unidentified cadavers, FORENSIC SCIENCE INTERNATIONAL, 232(1-3), 2013
  42. The use of moxibustion scars in the identification of individuals in forensic medicine, FORENSIC SCIENCE INTERNATIONAL, 219(1-3), E25-E28, 2012
  43. Use of the Genome Profiling Method for the Identification of Saliva and Sweat Samples, Japanese journal of science and technology for identification, 18(1), 79-83, 2013
  44. Tracing Jomon and Yayoi ancestries in Japan using ALDH2 and JC virus genotype distributions., Investigative genetics, 6, 2015
  45. Five Cases of Familial Mediterranean Fever in Japan: The Relationship with MEFV Mutations., Internal Medicine, 57(16), 2425-2429, 20180815

Invited Lecture, Oral Presentation, Poster Presentation

  1. A study on the use of Long-lasting Insecticidal Nets (LLINs) for Malaria prevention among Indonesian 5-years-old population, Gunara RA, Widawati M, Miyamori D, Kanno K, Ito M, ICPS2020, 2020/10, Without Invitation, English, ICPS, Surabaya, Indonesia


  1. 2023/03/26, Hospital Director's Award, Hiroshima University Hospital, Physician Workplace Reform Chair
  2. 2024/06/09, Annual Conference Director's Award, The 15th Japan Primary Care Alliance Conference, The presence of a family physician is inhibitory to the increased suicide risk associated with the COVID-19 epidemic: a split time series analysis by RWD
  3. 2023/08/26, Academic Award, Japanese Society Of Hospital General Medicine, How the 2018 Japan Floods Impacted Nursing Home Admissions for Older Persons: A Longitudinal Study Using the Long-Term Care Insurance Comprehensive Database

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI(Grant-in-Aid for Early-Career Scientists), 2014/04/01, 2017/03/31
  2. KAKENHI(Grant-in-Aid for Early-Career Scientists), 2021, 2023

Social Activities

Organizing Academic Conferences, etc.

  1. The 11th Annual Conference of Japan Primary Care Association, Japan Primary Care Association, 2020/07, 2020/08