Masahiro UMEZAKI

Curriculum Vitae


Birth date: 05 August 1968

Education:

1991: Graduated from School of Health Science,  Faculty of Medicine, The University of Tokyo (Bachelor of Health Science)

1997: Graduated from School of International Health, Graduate School of Medicine, The University of Tokyo (PhD)

Work experience:

1997-2002: Instructor, Department of Human Ecology, Faculty of Medicine, The University of Tokyo

2002-2005: Lecturer, Section of International Health, Graduate School, Tokyo Medical and Dental University

2005-: Associate Professor, Department of Human Ecology, Graduate School of Medical Sciences, The University of Tokyo

2018-: Professor, Department of Human Ecology, Graduate School of Medical Sciences, The University of Tokyo

Research Experience

Contact Address

Masahiro UMEZAKI, PhD
Department of Human Ecology
Graduate School of Medical Sciences
University of Tokyo
7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
E-mail: umezaki<at mark>humeco.m.u-tokyo.ac.jp

Major Publications

<2023>

Sekiya S, Masuoka H, MIzuno Y, KIbe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Takayasu L, Suda W, Yagyu F, Umezaki M. (in press) Asymptomatic enteric virus infections and association with the gut microbiome in rural residents of Northern Laos. American Journal of Tropical Medicine and Hygine.

Fajari MF, Gunawan B, and Umezaki M. (in press) A mini-ethnography of stingless bee honey gathering in rural Sumedang, West Java: the practice and its contribution to economic and livelihood system in
rural areas. ETNOSIA: Jurnal Etnografi Indonesia.

Kibe M, MIzuno Y, Masuoka H, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Umezaki M. (in press) Transition to a market economy and chronic psychosocial stress in northern Laos: An exploratory study of urinary free cortisol in rural residents. American Journal of Human Biology.

Pooseesod K, Umezaki M, Phetrak A and Phuanukoonnon  (2023) Handwashing among caregivers of young children in a protracted and complex refugee and immigration context: A mixed methods study on the Thai-Myanmar border. Frontiers in Public Health, 11. doi.org/10.3389/fpubh.2023.1099831

Mizuno Y, Inaba Y, Masuoka H, Kibe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Umezaki M (2023) Impact of modernization on oxidative stress among indigenous populations in Northern Laos. American Journal of Biological Anthropology. doi.org/10.1002/ajpa.24722

Vengiau G, Marks GC, Morita A, Pulford J, Wawaga E, Parapi I, Fasi B, Umezaki M. (in press)
Development and validation of the physical activity questionnaire (PNG-PAQ) that assess time spent on sedentary and moderate to vigorous physical activities: A case study in rural highland and peri-urban coastal communities in Papua New Guinea. People and Culture in Oceania.

Leyso NL, Umezaki M. (2023) Uncovering spatial patterns and temporal trends in the ageing of the Tokyo Metropolis population. Journal of Population Ageing. doi.org/10.1007/s12062-023-09412-x

Kosaka S, Suda K, Gunawan B, Umezaki, M. (in press) A Questionnaire Survey to Assess Motivations for Food Intake in Sundanese Communities in Indonesia, and an assessment of the applicability of the questionnaire.  Japanese Journal of Health and Human Ecology.

Mizuno Y, Inaba Y, Masuoka H, Kibe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong, N, Kounnavong S, Tomita S, Umezaki M. (in press) Determinants of oxidative stress among indigenous populations in Northern Laos: trace element exposures and dietary patterns. Science of the Total Environment. doi: 10.1016/j.scitotenv.2023.161516.

<2022>

Ohnishi M, Nakao R, Kawasaki R, Tanaka J, Kosaka S, Umezaki M. (in press) Factors associated with failure to receive health check-ups in Nagasaki Prefecture, Japan. Journal of Rural Medicine.

Masuda M, Natsuhara K, Sueyoshi S, Odani S, Yagyu F, Tadokoro K, Ohnishi M, Nakao R, Goto C, Umezaki M. (in press) Association between the Dietary Inflammatory Index and Disability in Japanese Older People. Public Health Nutrition.

Kibe M, Tomita S, Umezaki M. (2022) Divergence in Nutritional Intake and Physical Activity Patterns Among Households in a Village of Ethnic Minorities in Northern Laos at the Initial Stage of Health Transition. Human Ecology, 50: 287-305.

Kosaka S, Nakao R, Goto C, Umezaki M, Ohnishi M. (2022) Food store accessibility affects nutritional intake through shopping frequency and food intake in middle-aged to older adults in rural Nagasaki, Japan. American Journal of Human Biology 34:e23725. doi: 10.1002/ajhb.23725.

Konishi S, Umezaki M, Suzuki S. (2022) Perceived health, fertility and social network of middle-aged and older women in Japan. Japanese Journal of Health and Human Ecology, 88: 15-22.

<2021>

Carino RF, Takayasu L, Suda W, Masuoka H, Hirayama K, Konishi S, Umezaki M. (2021) The Search for Aliens within Us: A review of evidence and theory regarding the fetal microbiome. Critical Reviews in Microbiology  doi.org/10.1080/1040841X.2021.1999903

Mizuno Y, Masuoka H, Kibe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Umezaki M. (2021) Impact of modernization on urinary concentrations of arsenic, cadmium, lead, and selenium in rural residents of Northern Laos. American Journal of Human Biology . doi.org/10.1002/ajhb.23685

Mizuno Y, Shimuzu-Furusawa H, Konishi S, Inaoka T, Ahmad SA, Sekiyama M, Abdoellar OS, Gunawan B, Parajuli RP, Ikemoto Y, Lam TD, Watanabe C, Umezaki M. (2021) Associations between urinary heavy metal concentrations and blood pressure in residents of Asian countries. Environmental Health and Preventive Medicine doi: 10.1186/s12199-021-01027-y.

Kosaka S, Nakao R, Ohnishi M, Umezaki M. (2021) The proportion of older population in Nagasaki, Japan, is higher in areas with poor walkability and accessibility. Japanese Journal of Health and Human Ecology, 87: 237-245.

Mizuno Y, Hur K, Umezaki M. (2021) Assessment of Intra- and Inter-assay Variation in Dried Blood Spot Telomere Length Measurements by qPCR. Anthropological Science, 129: 99-102.

Ieiri MCA, Kosaka S, Tomitsuka E, Umezaki M. (2021) Factors affecting undernutrition among school children in Cebu, Philippines. Ecology of Food and Nutrition, 60: 182-197.

<2020>

Masuoka H, Suda W, Tomitsuka E., Shindo C, Takayasu L, Horwood P, Greenhill AR, Hattori M, Umezaki M, Hirayama K. (2020)  The influences of low protein diet on the intestinal microbiota of mice. Scientific Reports 10, 17077. https://doi.org/10.1038/s41598-020-74122-9

Jonduo M,  Lorry W, Geraldine M, Hattori M, Suda W, Takayasu L, Yazid A, Greenhill A, Horwood P, Pomat W, Umezaki M. (2020)  Gut microbiota composition in obese and non-obese adult relatives from the highlands of Papua New Guinea. FEMS Microbiology Letters, 367 (19) fnaa161, https://doi.org/10.1093/femsle/fnaa161.

Wai KM, Umezaki M, Umemura M, Mar O, Watanabe C. (2020)　Protective role of selenium in the shortening of telomere length in newborns induced by in utero heavy metal exposure.　Environmental Research, 183. doi.org/10.1016/j.envres.2020.109202

<2019>

Horwood PF, Tarantola A, Navarro S,Goarant C, Matsui M, Klement E, Umezaki M and Greenhill AR. (2019) Health challenges of the Pacific region: Insights from history, geography, social determinants, genetics and the microbiome. Frontiers in Immunology. doi: 10.3389/fimmu.2019.02184

Wai KM, Umezaki M, Mar O, Umemura M, Watanabe C. (2019) Arsenic exposure through drinking water and oxidative stress status: a cross-sectional study in the Ayeyarwady region, Myanmar. Journal of Trace Elements in Medicine and Biology、54:103-109.

Wai KM, Ser PH, Ahmad SA, Yasmir R, Ito Y, Konishi S, Umezaki M, Watanabe C. (2019) In-utero arsenic exposure and growth of infants from birth to 6 months of age: A prospective cohort study in rural Bangladesh. International Journal Of Environmental Health Research. doi.org/10.1080/09603123.2019.1597835

<2018>

Suda K, Gunawan B, Kosaka S, Dede HA, Umezaki M. (2018) Changing cropping systems in Sundanese villages in West Java, Indonesia. People and Culture in Oceania, 34: 79-88.

Wai KM, Umezaki M, Kosaka S, Mar O, Umemura M, Fillman T, Watanabe C. (2018) Impact of prenatal heavy metal exposure on newborn leucocyte telomere length: A birth-cohort study. Environmental Pollution, 243, Part B, 1414-1421.

Khan R, Konishi S, Ng CFS, Umezaki M, Kabir AF, Tasmin S, Watanabe C. (2018) Association between short-term exposure to fine particulate matter and daily emergency room visits at a cardiovascular hopital in Dhaka, Bangradesh. Science of the Total Environment, 646: 1030-1036.

Kosaka S, Suda K, Gunawan B, Raksanagara A, Watanabe C, Umezaki M. (2018) Urban-rural difference in the determinants of dietary and energy intake patterns: A case study in West Java, Indonesia. PLoS One, doi.org/10.1371/journal.pone.0197626.

<2017>

Tomitsuka E, Igai K, Tadokoro K, Morita A, Baba J, Suda W, Greenhill AR, Horwood PF, Soli KW, Siba PM, Odani S, Natsuhara K, Morita H, Umezaki M. (2017) Profiling of faecal water and urine metabolites among Papua New Guinea highlanders believed to be adapted to low protein intake. Metabolomics, 13:105.

Horwood P, Soli KW, Maure T, Naito YI, Morita A, Natsuhara K, Tadokoro K, Baba J, Odani S, Tomitsuka E, Igai K, Larkins JA, Siba PM, McBryde E, Umezaki M, Greenhill AR. (2017) A high burden of asymptomatic gastrointestinal infections in traditional communities in Papua New Guinea. American Journal of Tropical Medicine and Hygiene, 97: 1872-1875. .

Hamamatsu Y, Goto C, Nishitani M, Shimadate R, Uenoe J, Kusakari Y, Umezaki M (2017) Associations between neighborhood food environments and deficient protein intake among elderly people in a metropolitan suburb: a case study in Kisarazu City, Japan. American Journal of Human Biology, 29: doi: 10.1002/ajhb.23043.

Kosaka S, Umezaki M (2017) A systematic review of the prevalence and predictors of the double burden of malnutrition within households. British Journal of Nutrition, 117: 1118-1127.

Chen SM, Qiu L, Du ZH, Jin YM, Du JW, Chen Y, Watanabe C, Umezaki M. (2017) Spatial clustering of severe hand-foot-mouth disease cases in Hainan Island, China. Japanese Journal of Infectious Diseases, 70: 604-608.

Rarau P, Vengiau G, Gouda H, Phuanukoonon S, Kevau IH, Bullen C, Scragg R, Riley I, Marks G, Umezaki M, Morita A, Oldenburg B, McPake B, Pulford J. (2017) The prevalence of non-communicable disease risk factors in three sites across Papua New Guinea: A cross-sectional study.  BMJ Global Health, 14:  doi: 10.1136/bmjgh-2016-000221

<2016>

Igai K, Itakura M, Nishijima S, Tsurumaru H, Suda W, Tsutaya T, Tomitsuka E, Tadokoro K, Baba J, Odani S, Natsuhara K, Morita A, Yoneda M, Greenhill AR, Horwood PF, Inoue J, Ohkuma M, Hongoh Y, Yamamoto T, Siba PM, Hattori M, Minamisawa K, Umezaki M. (2016) Nitrogen fixation and nifH diversity in human gut microbiota. Scientific Reports,  6:31942 | DOI: 10.1038/srep31942.

Inoue Y, Umezaki M. (2016) Medical pluralism and health-seeking behaviors among older individuals in rural Japan. Journal of Cross-Cultural Gerontology, 31: 57-72.

Morita A, Natsuhara K, Vengiau G, Chen CCJ, Odani S, Inaoka T, Tadokoro K, Suda K, Furusawa T, Siba P, Phuanukoonnon S, Umezaki M. (2016) Reduced morning cortisol level in saliva associated with obesity: Evidence from community-dwelling adults in Papua New Guinea. American Journal of Human Biology, 28: 587-590.

Umezaki M, Naito IY, Tsutaya T, Baba J, Tadokoro K, Odani S, Morita A, Natsuhara K, Phuanukoonnon S, Vengiau G, Siba MP, Yoneda M. (2016) Association between sex inequality in animal protein intake and economic development in the Papua New Guinea Highlands: the carbon and nitrogen isotopic
composition of scalp hair and fingernail. American Journal of Physical Anthropology, 159: 164-173.

<2015>

Naito Y, Morita A, Natsuhara K, Tadokoro K, Baba J, Odani S, Tomitsuka E, Igai K, Tsutaya T, Yoneda M, Greenhill A, Horwood P, Kevin S, Phuanukoonnon S, Siba P, Umezaki M. (2015)  Association of protein intakes and variation of diet-scalp hair nitrogen isotopic discrimination factor in Papua New
Guinea Highlanders. American Journal of Physical Anthropology, 158: 359-370.

Chen SM, Du JW, Jin YM, Qiu L, Du ZH, Li DD, Chen HY, Watanabe C, Umezaki  M. (2015) Risk factors for severe hand-foot-mouth disease in children in Hainan, China, 2011–2012. Asia-Pacific Journal of Public Health.  DOI: 10.1177/1010539515579123

Greenhill AR, Tsuji H, Ogata K, Natsuhara K, Morita A, Soli K, Larkins JA, Tadokoro K, Odani S, Baba J, Naito Y, Tomitsuka E, Nomoto K, Siba PM, Horwood PF, Umezaki M. (2015) Characterization of the gut microbiota of Papua New Guineans using reverse transcription quantitative PCR. PLOS ONE. DOI: 10.1371/journal.pone.0117427

Parajuli RP, Umezaki M, Fujiwara T, Watanabe C. (in press) Association of cord blood levels of lead, arsenic, and zinc and home environment with neurodevelopmental indicators of 36 months childrenliving in Chitwan valley, Nepal. PLOS ONE. DOI: 10.1371/journal.pone.0120992

Hamamatsu Y, Watanabe C, Umezaki, M. (2015) Secondary sex ratio and marriage after the disaster: a reply to O'Donnell and Behie. Journal of Biosocial Science, 47: 417-420.

Morita A, Natsuhara K, Tomitsuka E, Odani S, Baba J, Tadokoro K, Igai K, Greenhill A, Horwood P, Soli K, Phuanukoonnon S, Siba P, Umezaki M. (2015) Development, validation, and use of a semi-quantitative food frequency questionnaire for assessing protein intake in Papua New Guinean Highlanders. American Journal of Human Biology, 27: 349-357. 

<2014>

Inoue Y, Umezaki M, Jiang HW, Li D, Du JW, Jin YM, Yang B, Li B, Li YF, Watanabe C. (2014)  Urinary concentrations of toxic and essential trace elements among rural  residents in Hainan Island, China. International Journal of Environmental Research and Public Health, 11: 13047-13064.

Horwood PF, Karl S, Mueller , Jonduo MH, Pavlin BI, Dagina R, Ropa B, Bieb S, Rosewell A, Umezaki M, Siba PM, Greenhill, AR. (2014)  Spatio-temporal epidemiology of the cholera outbreak in Papua New Guinea, 2009-2011. BMC Infectious Diseases, 14: 449.

Parajuli RP, Fujiwara T, Umezaki M, Watanabe C. (2014) Home Environment and Cord Blood Levels of Lead, Arsenic, and Zinc on Neurodevelopment of 24 months Children Living in Chitwan valley, Nepal.  Journal of Trace Elements in Medicine and Biology. DOI: 10.1016/j.jtemb.2014.08.006

Soli KW, Maure T, Kas MP, Bande G, Bebes S, Luang-Suarkia D, Siba PM, Morita A, Umezaki M, Greenhill AR, Horwood PF. (2014). Detection of enteric viral and bacterial pathogens associated with paediatric diarrhoea in Goroka, Papua New Guinea. International Journal of Infectious Diseases, 27:54-58.

Parajuli RP, Fujiwara T, Umezaki U, Watanabe C. (2014).  Impact of caste on the neurodevelopment of young children from birth to 36 months of age: a birth cohort study in Chitwan valley, Nepal.  BMC Pediatrics, 14:56.

梅崎昌裕, 石川正敏 (2014)　人口政策が日本の将来人口に与える影響の可視化.　民族衛生, 80: 6-11.

門司和彦，中澤港，河野泰之，梅崎昌裕．（2014） ポスト人口転換社会における緩和策と適応策．民族衛生, 80: 60-67．

Parajuli RP, Fujiwara T, Umezaki M, Konishi S, Takane E, Maharjan M, Tachibana K, Jiang HW, Pahari K, Watanabe C. (2014). Prevalence and risk factors of Soil-transmitted helminth (STH) infection in Nepal. Transactions of the Royal Society of Tropical Medicine and Hygiene, 108: 228-236.

Kosaka S, Umezaki M, Ishikawa M, Watanabe C. (2014). Physical activity and the neighbourhood environment in a heavy snowfall area in Japan: The role of "gangi-dori. Landscape and Urban Planning, 123: 124-133.

Parajuli RP, Umezaki M, Furusawa H, Watanabe C, Fujiwara T.  (2014) Letter in response to Dr Jose G. Dorea. Neurotoxicology and Teratology, 45:94.

Parajuli RP, Fujiwara T, Umezaki M, Furusawa H, Watanabe C. (2014) Home environment and prenatal exposure to lead, arsenic and zinc on the neurodevelopment of six-month-old infants living in Chitwan valley, Nepal. Neurotoxicology and Teratology, 41: 89-95.

Konishi S, Parajuli RP, Takane E, Maharjan M, Tachibana K, Jiang HW, Pahari K, Inoue Y, Umezaki M, Watanabe C. (2014). Significant sex difference in the association between C-reactive protein concentration and anthropometry among 13-19-year-olds, but not 6-12-year-olds in Nepal. American Journal of Physical Anthropology, 154: 42-51.

Hamamatsu Y, Inoue Y, Watanabe C, Umezaki, M. (2014) Impact of the 2011 earthquake on marriage, births and the secondary sex ratio in Japan. Journal of Biosocial Science, 46:830-41.

Hoshikawa K, Umezaki M. (2014)  Effect of terrain-induced shade removal using global DEM datasets on
land-cover classification. International Journal of Remote Sensing, 35: 1331-1355.

Vengiau G, Umezaki M, Phuanukoonnon S, Siba P, and Watanabe C. (2014)  Associations of socioeconomic status with diet and physical activity in migrant Bougainvilleans in Port Moresby, Papua New Guinea. Ecology of Food and Nutrition, 53:471-483.

Inoue Y, Yazawa A, LIi DD, Du, JW, Jin YM, Chen Y, Watanabe C, Umezaki M. (2014)  Epstein-Barr virus titer and its association with the domain scores from the World Health Organization’s Quality of Life Questionnaire: Findings from rural Hainan province, China. American Journal of Human Biology, 26: 51-55.

Yazawa A, Inoue Y, Li D, Du JW, Jin YM, Chen Y, Nishitani M, Watanabe C, and Umezaki M. (2014)  Impact of Lifestyle Changes on Stress in a Modernizing Rural Population in Hainan Island, China. American Journal of Human Biology, 26: 36-42. 

<2013>

Zhou R, Li Y, Umezaki M, Ding Y, Jiang H, Comber A, Fu H. (2013) Association between Physical Activity and Neighborhood Environment among Middle-Aged Adults in Shanghai Journal of Environmental and Public Health, 2013, 239595. https://doi.org/10.1155/2013/239595.

Soli KW, Kas M, Maure T, Umezaki M, Morita A, Siba PM, Greenhill AR, and Horwood PF (2013) Evaluation of colorimetric detection methods for Shigella, Salmonella and Vibrio cholerae by loop-mediated isothermal amplification.  Diagnostic Microbiology and Infectious Disease, 77: 321-323.   

Kas MP, Maure T, Soli KW, Umezaki M, Morita A, Bebes S, Jonduo MH, Larkins JA, Luang-Suarkia D, Siba PM, Greenhill AR, Horwood PF. (2013) Evaluation of a rapid immunochromatographic assay for the detection of rotavirus, norovirus and adenovirus from children hospitalized with acute watery diarrhoea. Papua New Guinea Medical Journal, 56: 141-144.

Bagrowicz R, Umezaki M, and Watanabe C.  (2013)  Is Obesity Contagious by Way of Body Image? A Study on Japanese Female Students in the United States. Journal of Community Health, 38: 834-837.

Zhou R., Li Y., Umezaki M., Ding Y., Jiang H.W., Comber A., and Fu H. (2013) Association between physical activity and neighborhood environment among middle-age adults in Shanghai. Journal of Environmental and Public Health.  Articile ID: 239595. doi.org/10.1155/2013/239595.

Parajuli RP, Fujiwara T, Umezaki M, and Watanabe C. (2013) Association of Cord Blood Levels of Lead, Arsenic, and Zinc with Neurodevelopmental Indicators in Newborns: A Birth Cohort Study in Chitwan Valley, Nepal.  Environmental Research, 121: 45-51.

Inoue Y, Umezaki M, and Watanabe C. (2013) Geographic clustering of the secondary sex ratio in Japan: association with demographic attributes. Journal of Biosocial Science, 45: 279-284.

周热娜，傅华，李洋，Umezaki, M.　(2013) 上海市某两所中学初中生体力活动环境影响因素分析.  复旦学报（医学版） 40: 193-198.

<2012>

Vengiau G, Umezaki M, Phuanukoonnon S, Siba P. and Watanabe C. (2012).   Diet and physical activity among migrant Bougainvilleans in Port Moresby, Papua New Guinea: association with anthropometric measures and blood pressure.  American Journal of Human Biology, 24: 716-718. 

Parajuli RP, Umezaki M, and Watanabe C. (2012). Diet among people in the Terai region of Nepal, an area of micronutrient deficiency.  Journal of Biosocial Science, 44: 401-415. 

Parajuli RP, Fujiwara T, Umezaki M, Furusawa H, Ser PH, and Watanabe C. (2012).  Cord Blood Levels of Toxic and Essential Trace Elements and their Determinants in the Terai Region of Nepal: A Birth Cohort Study.  Biological Trace Element Research, 147: 75-83.  

Inoue Y., Umezaki M., and Watanabe C. (2012) Emergence of income inequality and its impact on subjective quality of life in an ethnic minority community in Hainan Island, China. Anthropological Science, 120: 51-60. 

Comber A, Umezaki M, Zhou R, Ding Y, Li Y, Fu H, Jiang H and Tewkesbury A. (2012). Using shadows in high-resolution imagery to determine building height.   Remote Sensing Letters. 3:7, 551-556.


<2011>

Konishi S, Watanabe C, Umezaki M., and Ohtsuka R. (2011) Energy and Nutrient Intake of Tongan Adults Estimated by 24-Hour Recall: The Importance of Local Food Items. Ecology of Food and Nutrition, 50: 337-350.

Lee JS, Kondo K, Kawakubo K, Kataoka Y, Mori K, Umezaki M, Yamauchi T, Asami Y, Takagi H, Akabayashi A. (2011) Neighborhood environment associated with daily physical activity measured both objectively and subjectively among residents in a community in Japan. Japanese Journal of Health and Human Ecology, 77: 94-107.

梅崎昌裕，西谷大 (2011) 雲南省者米谷における土地利用パタンの空間情報科学分析．国立歴史民俗博物館研究報告, 164: 159-167. 


<2010>

Okubo S, Dendi Muhamad P, Harashina K, Takeuchi K, and Umezaki M. (2010) Land use/cover classification of a complex agricultural landscape using single-dated very high spatial resolution satellite-sensed imagery. Canadian Journal of Remote Sensing, 36: 722-736.


<2009>

Umezaki M, and Jiang HW. (2009) Changing adaptive strategies of two Li ethnic minority villages in a mountainous region of Hainan Island, China.  Southeast Asian Studies 47: 348-362. 

Kondo K, Lee JS, Kawakubo K, Kataoka Y, Asami Y, Mori K, Umezaki M, Yamauchi T, Takagi H, Sunagawa H, and Akabayashi A. (2009) Association between daily physical activity and neighborhood environments.  Environmental health and Preventive Medicine 14: 196-206.  

Fukuyama, S., Watanabe, C., Umezaki, M., and Ohtsuka, R. (2009) Twenty years' demographic change in sedentes and migrants of an international migrant-sending community in Tonga.  Journal of Biosocial Science　41:77-87.

Parajuli R.P., Umezaki M, and Watanabe C. (2009) Behavioral and nutritional factors and geohelminth infection among two ethnic groups in the Terai region, Nepal.  American Journal of Human Biology 21: 98-104.

<2008>

<2007>

Mean-Heang, N.G.Y., Nakamura, K., Ohnishi, M., Kizuki, M., Suyama, S., Seino, K., Inose, T., Umezaki, M., Watanabe, M., and Takano, T. (2007) Improved Perinatal Health through Qualified Antenatal Care in Urban Phnom Penh, Cambodia.  Environmental Health and Preventive Medicine, 12: 193-201.

Umezaki M, Sengebau-Kinzio MJ, Nakamura K, Ridep E, Watanabe M, TakanoT (2007) Household risk factors associated with dengue-like illness, Republic of Palau, 2000-2001.  BioScience Trends, 1: 33-37.

Maharjan M, Watanabe C, Ahmad SA, Umezaki M, Ohtsuka R (2007)  Mutual interaction between nutritional status and chronic arsenic toxicity due to groundwater contamination in an area of Terai, lowland Nepal.  Journal of Epidemiology and Community Health, 61 (5): 389-394.

Andoh, S.Y., Umezaki, M., Nakamura, K., Kizuki, M., and Takano, T. (2007) Association of household demographic variables with child mortality in Cote d'Ivoire. Journal of biosocial Science, 39: 257-265.


<2006>

Andoh, S.Y., Umezaki, M., Nakamura, K., Kizuki, M., and Takano, T. (2006) Correlation between indebtness, HIV/AIDS, and political status and mortalities in African countries. Public Health, 120: 624-633.

Jiang, H.W., Umezaki, M., and Ohtsuka, R. (2006) Inter-household variation in acceptance of cash cropping and its effects on labor and dietary patterns: a study in a Li hamlet in Hainan Island, China. Anthropological Science, 114: 165-173.


< -2005>

Tanaka, M., Umezaki, M., Natsuhara, K., Yamauchi, T., Inaoka, T., Hongo, T., Nagano, M., Watanabe, C., and Ohtsuka, R. (2005) No difference in serum leptin concentrations between urban-dwelling Austronesians and Non-Austronesians in Papua New Guinea. American Journal of Human Biology, 17: 696-703.

Umezaki, M., Sengebau-Kinzio, J.M., Ridep, E., Sikyang, B., Ngiruchelbad, D., Tadao, R., Watanabe, M., Nakamura, K., and Takano, T. (2005). Microbiological safety of ready-to-eat foods in Republic of Palau. Pacific Health Dialog, 12: 38-42.

Umezaki, M., Jiang, H.W. and Liang, J.Y. (2005). Transformation of human-environment relationships in Wuzhishan region, Hainan, China: 1930s to present. PLEC News and Views, 7: 6-11. (http://rspas.anu.edu.au/anthropology/plec.html)

Fukuda, Y. Umezaki, M., Nakamura, K. and Takano, T. (2005) Variations in societal characteristics of spatial disease clusters: examples of colon, lung and breast cancer in Japan. International Journal of Health Geographics, 4: 16. (Online Journal: http://www.ij-healthgeographics.com/content/4/1/16)

Furusawa, T., Pahari, K., Umezaki, M. and Ohtsuka, R. (2004). Impact of selective logging on New Georgia Island, Solomon Islands evaluated using very-high-resolution satellite (IKONOS) data. Environmental Conservation, 31: 349-355.

Fu, H., Umezaki, M., Nakamura, K., Chen, P., Chen, J., Shi, H.J., and Takano, T. (2004). Pilot study of using GIS to visualize health status distribution: case study of Songjiang District, Shanghai. Journal of Medical and Dental Science, 51: 179-185.

Liang, J.Y., Umezaki, M. and Ohtsuka, R. (2003). Advantageous and disadvantageous impacts of tourism development on the living of Li ethnic minority villagers in Hainan Island, China. Journal of Human Ergology, 32: 1-7.

梅崎昌裕 （2003） GISの人類生態学への応用.　人口学研究，32: 8-13.

Umezaki, M. and Ohtsuka, R. (2003). Adaptive strategies of Highlands-origin migrant settlers in Port Moresby, Papua New Guinea. Human Ecology, 31: 3-25.

Umezaki, M. and Ohtsuka, R. (2002). Changing migration patterns of the Huli in Papua New Guinea Highlands: A genealogical-demographic analysis. Mountain Research and Development, 22: 256-262.

Umezaki, M., Yamauchi, T., and Ohtsuka, R. (2002). Time allocation to subsistence activities among the Huli in rural and urban Papua New Guinea. Journal of Biosocial Science, 34: 133-137.

梅崎昌裕　（2001）.　環境保全と両立しうる生業の可能性−水満村の事例−.　アジア・太平洋の環境・開発・文化，3，50-66. (http://future.humeco.m.u-tokyo.ac.jp/NWS3-index-main.htm)

Umezaki, M., Natsuhara, K., and Ohtsuka, R. (2001). Protein content and amino acid scores of sweet potatoes in Papua New Guinea Highlands. Ecology of Food and Nutrition, 40: 471-480.

Yamauchi, T., Umezaki, M., and Ohtsuka, R. (2001). Physical activity and subsistence pattern of the Huli, a Papua New Guinea Highland population. American Journal of Physical Anthropology, 114: 258-268.

Yamauchi, T., Umezaki, M., and Ohtsuka, R. (2001). Influence of urbanisation on physical activity and dietary changes in Huli-speaking population: a comparative study of village dwellers and migrants in urban settlements. British Journal of Nutrition. 85: 65-73

梅崎昌裕（2000）．パプアニューギニア高地におけるブタ飼養の現在的意味．　動物考古学 15,　53-80．

Umezaki, M., Kuchikura, Y., Yamauchi, T., and Ohtsuka, R. (2000). Impact of population pressure on food production: an analysis of land use change and subsistence pattern in the Tari basin in Papua New Guinea Highlands. Human Ecology, 28: 359-381.

Yamauchi, T., Umezaki, M., and Ohtsuka, R. (2000). Energy expenditure, physical exertion and time allocation among Huli-speaking people in the Papua New Guinea Highlands. Annals of Human Biology, 27: 571-585.

Natsuhara, K., Inaoka, T., Umezaki, M., Yamauchi, T., Hongo, T., Nagano, M., and Ohtsuka, R. (2000). Cardiovascular risk factors of migrants in Port Moresby from the Highlands and island villages, Papua New Guinea. American Journal of Human Biology, 12: 655-664.

Umezaki, M., Yamauchi, T., and Ohtsuka, R. (1999). Diet among the Huli in Papua New Guinea Highlands when they were influenced by the extended rainy period. Ecology of Food and Nutrition, 37: 409-427.

Umezaki, M., Ishimaru, H., and Ohtsuka, R. (1999). Daily time budget of long-distance commuting workers in Tokyo Megalopolis. Journal of Biosocial Science, 31: 71-78.

Ohtsuka, R., Abe, T., and Umezaki, M. (1998). Environmentally sound agricultural development in rural societies: a comparative view from Papua New Guinea and south China. UNESCO Working Paper No. 27. UNESCO, Paris.

Umezaki, M. and Ohtsuka, R. (1998). Impact of rural-urban migration on fertility: a population ecology analysis in the Kombio, Papua New Guinea. Journal of Biosocial Science, 30: 411-422.

Umezaki, M. and Ohtsuka, R. (1996). Microdemographic analysis for population structure from a closed to open system: a study in the Kombio, Papua New Guinea. Man and Culture in Oceania, 12: 19-30.

Ohtsuka, R., Inaoka, T., Umezaki, M., Nakada, N., and Abe, T. (1995). Long-term subsistence adaptation to the diversified Papua New Guinea environment. Global Environmental Change, 5: 347-353.

Ohtsuka, R. and Umezaki, M. (1993). Changing population structure and commuting situation in Tokyo Megalopolis: a municipality-based analysis. Journal of Human Ergology, 22: 69-73.