Dr. Hokuto Nakata

Work experience

June 2020- date Postdoctoral fellow, Faculty of Veterinary Medicine, Hokkaido University 

April 2017-March 2020 Part-time lecturer, Faculty of Veterinary Medicine, Hokkaido University 

Oct 2016-May 2020 Research fellow, Faculty of Veterinary Medicine, Hokkaido University 

Feb 2016-Sep 2016 Japan Overseas Cooperation Volunteer in Zambia, Japan International Cooperation Agency 
- Infection disease and HIV/AIDS prevention activities in Zambia
- Data acquisition and analysis of infectious and non-infectious diseases
- Epidemiological research on diarrheal infections in the jurisdiction and awareness raising for prevention
- Water Quality Control of Wells
- Improving the management capacity of clinics under our jurisdiction
- Health Education in Primary Schools 

July 2015-Feb 2016 Japan Overseas Cooperation Volunteer in Bangladesh, Japan International Cooperation Agency
- Infection disease and HIV/AIDS prevention activities in Bangladesh
- Data acquisition and analysis of infectious and non-infectious diseases
- Participation in research on groundwater arsenic contamination
- Strengthening the management capacity of county health departments
- Improving infant immunization rates in the counties under our jurisdiction
- Awareness of the prevention of diarrheal infections
- Health Education in Primary Schools

Selected research grants

April 2020-date A Novel Mechanism of Metal Tolerance in a Multi-Hierarchical Terrestrial Organism Population Independently of Genetic Mutation Using High Precision XAFS - JSPS (Japan, Zambia). Role: Researcher

- Elucidation of mechanism of metal tolerance
- Analysis of metal speciation 

April 2020-date Implementation and Effectiveness Verification of Risk-based Control Approaches for Lead Contaminated Environment and Lead Poisoning in Zambian Mining District - JST (Zambia, Japan). Role: Researcher

- long-term ecosystem restoration and soil conservation, improved edible plant growth, large-scale deployment of an online weather data management system, and establishment of a green park
- prospective cohort studies and clinical symptom assessments, and economic rationale and justification for treatment and environmental remediation
- assessment of the impact of surrounding residential areas by estimating Pb diffusion routes from mine dump sites, and proposing economically rational remediation methods, as well as deployment of environmental remediation in collaboration with the World Bank project. 

April 2019-date A field-based toxicity mechanism analysis of emerging and re-emerging environmental pollution in Africa - JSPS (Japan, Zambia etc.). Role: Researcher

- Elucidation of lead toxicity mechanism 

April 2019-March 2020 Effect of combined exposure of cyanobacteria and metals on oxidative stress - Akiyama Foundation (Japan). Role: PI

- Acquisition of basic data for the development of treatment methods by in vivo experiment 

April 2019-date Development of low-cost treatments for lead poisoning and remediation of lead-contaminated environments using plant - JSPS (Japan, Zambia). Role: PI

- Acquisition of basic data for the development of treatment methods by in vivo experiment
- Development of a remediation method for contaminated soil using column tests
- Survey of growth in contaminated soil by pod testing 

Selected publications

1. Tangviroon P, Noto K, Igarashi T, Kawashima T, Ito M, Sato T, Mufalo W, Chirwa M, Nyambe I, Nakata H, Nakayama S, Ishizuka M. Immobilization of lead and zinc leached from mining residual materials in Kabwe, Zambia: Possibility of chemical immobilization by dolomite, calcinated dolomite, and magnesium oxide. Minerals (2020, in press)
2. Yamada D, Hiwatari M, Hangoma P, Narita D, Mphuka C, Chitah B, Yabe J, Nakayama SMM, Nakata H, Choongo K, Ishizuka M. Assessing the population-wide exposure to lead pollution in Kabwe, Zambia: an econometric estimation based on survey data. Scientific Reports (2020, in press)
3. Nakata H, Nakayama SMM, Yabe J, Muzandu K, Toyomaki H, Yoannnes YB, Kataba A, Zyambo G, Ikenaka Y, Choongo K, Ishizuka M. Clinical biochemical parameters associated with the exposure to multiple environmental metals in residents from Kabwe, Zambia. Chemosphere, 127788 (2020)
4. Yoshii Y, von Rein I, Munthali K, Mwansa M, Nakata H, Nakayama S, Ishizuka M, Uchida Y. Evaluation of phytoremediation effects of chicken manure, urea and lemongrass (Cymbopogon citratus) to remediate a lead contaminated soil in Kabwe, Zambia. South African Journal of Plant and Soil (2020, in press)
5. Silwamba M, Ito M, Hiroyoshi N, Tabelin CB, Fukushima T, Park I, Jeon S, Igarashi T, Sato T, Nyambe I, Chirwa M, Banda K, Nakata H, Nakayama SMM, Ishizuka M. Detoxification of lead-bearing zinc plant leach residues from Kabwe, Zambia by coupled extraction-cementation method. Journal of Environmental Chemical Engineering, 104197 (2020)