Hi I'm Rik (Rikuta Hamaya), MD, PhD, MS.
Researcher, Division of Preventive Medicine, Brigham and Women's Hospital
Thank you for viewing my profile!
Contents
Research Interests + representative work
1: Biomarkers/ Metabolomics
Efforts to provide interpretations of certain biomarkers.
Hamaya R, Mora S, Lawler PR, et al. Association of Plasma Branched Chain Amino Acid with Biomarkers of Inflammation and Lipid Metabolism in Women [published online ahead of print, 2021 Jul 15]. Circ Genom Precis Med. 2021;10.1161/CIRCGEN.121.003330. doi:10.1161/CIRCGEN.121.003330
Hamaya R, Ivey KL, Lee DH, et al. Association of diet with circulating trimethylamine-N-oxide concentration [published correction appears in Am J Clin Nutr. 2020 Dec 10;112(6):1656]. Am J Clin Nutr. 2020;112(6):1448-1455. doi:10.1093/ajcn/nqaa225
2: Coronary circulation
Providing insights onto coronary physiology to guide intravascular treatment for coronary artery disease.
Hamaya R, van de Hoef TP, Lee JM, et al. Differential Impact of Coronary Revascularization on Long-Term Clinical Outcome According to Coronary Flow Characteristics: Analysis of the International ILIAS Registry. Circ Cardiovasc Interv. 2022;15(6):e011948. doi:10.1161/CIRCINTERVENTIONS.121.011948
Hamaya R, Yonetsu T, Kanaji Y, et al. Diagnostic and Prognostic Efficacy of Coronary Flow Capacity Obtained Using Pressure-Temperature Sensor-Tipped Wire-Derived Physiological Indices. JACC Cardiovasc Interv. 2018;11(8):728-737. doi:10.1016/j.jcin.2018.01.249
Hamaya R, Mittleman MA, Hoshino M, et al. Prognostic Value of Prerevascularization Fractional Flow Reserve Mediated by the Postrevascularization Level. JAMA Netw Open. 2020;3(9):e2018162. Published 2020 Sep 1. doi:10.1001/jamanetworkopen.2020.18162
3: Physical Activity
Step count is an emerging biomarker to which I am working on making evidence.
Hamaya R, Mori M, Miyake K, Lee IM. Association of Smartphone-Recorded Steps Over Years and Change in Cardiovascular Risk Factors Among Working-Age Adults. J Am Heart Assoc. 2022;11(14):e025689. doi:10.1161/JAHA.121.025689
Hamaya R, Fukuda H, Takebayashi M, et al. Effects of an mHealth App (Kencom) With Integrated Functions for Healthy Lifestyles on Physical Activity Levels and Cardiovascular Risk Biomarkers: Observational Study of 12,602 Users. J Med Internet Res. 2021;23(4):e21622. Published 2021 Apr 26. doi:10.2196/21622
4: Causal inference methods
Especially interested in effect heterogeneity.
..... coming soon
Education & Training
PhD in Population Health Science – Cardiovascular Epidemiology. Harvard University, 2023
MS in Biostatistics – Cardiovascular Epidemiology. Harvard University, 2023
MS in Epidemiology. Harvard T.H. Chan School of Public Health, 2019
MD & BSc. Tokyo Medical and Dental University, 2013
Completed internal medicine residency: Tokyo Medical and Dental University Hospital
Completed cardiology fellowship: Tsuchiura Kyodo General Hospital
Awards & Grants
Certificate of Distinction, Harvard T.H. Chan School of Public Health, 2021
Research Fellowship, The Uehara Memorial Foundation, 2019
Research award, Tokyo Medical and Dental University, 2018 & 2019
Best Presentation Award, Functional Revascularization Encouraged by Optimal Diagnostic Strategy Live, 2018
Overseas Scholarship, The Nakajima Foundation, 2017
Best Poster Award, European Society of Cardiology Congress, 2017
Platinum Award, Beyond Angiography Japan XXI, 2016
Publications
Please see here in Pubmed
Note
The other contents in this blog are written in Japanese - about causal inference methods, nutrition evidence, etc.