Comparison of two reducing agents dithiothreitol and tris(3-hydroxypropyl)phosphine for in vitro kinetic assay of vitamin K epoxide reductase

by Kazuki Takeda, Ayuko Morita, Yoshinori Ikenaka, Shouta M.M. Nakayama, Mayumi Ishizuka
Published 2020-06-01

Evaluation of the ameliorative effect of Spirulina (Arthrospira platensis) supplementation on parameters relating to lead poisoning and obesity in C57BL/6J mice

by Hokuto Nakata, Shouta M.M. Nakayama, Andrew Kataba, Yared Beyene Yohannes, Yoshinori Ikenaka, Mayumi Ishizuka
Published 2021-02-01

Ecological Risk of Heavy Metals and a Metalloid in Agricultural Soils in Tarkwa, Ghana

by Nesta Bortey-Sam, Shouta M. M. Nakayama, Osei Akoto, Yoshinori Ikenaka, Elvis Baidoo, Hazuki Mizukawa, Mayumi Ishizuka
Published 2015-09-01

Contamination Levels and Sources of Heavy Metals and a Metalloid in Surface Soils in the Kumasi Metropolis, Ghana

by Osei Akoto, Nesta Bortey-Sam, Yoshinori Ikenaka, Shouta M.M. Nakayama, Elvis Baidoo, Yared Beyene Yohannes, Mayumi Ishizuka
Published 2017-01-01

Relationship between Urinary N-Desmethyl-Acetamiprid and Typical Symptoms including Neurological Findings: A Prevalence Case-Control Study.

by Jemima Tiwaa Marfo, Kazutoshi Fujioka, Yoshinori Ikenaka, Shouta M M Nakayama, Hazuki Mizukawa, Yoshiko Aoyama, Mayumi Ishizuka, Kumiko Taira
Published 2015-01-01

Characterization, Spatial Variation and Risk Assessment of Heavy Metals and a Metalloid in Surface Soils in Obuasi, Ghana

by Osei Akoto, Nesta Bortey-Sam, Shouta M.M. Nakayama, Yoshinori Ikenaka, Elvis Baidoo, Joseph Apau, Jemima Tiwaa Marfo, Mayumi Ishizuka
Published 2018-01-01

Spatial and temporal profile of cisplatin delivery by ultrasound-assisted intravesical chemotherapy in a bladder cancer model.

by Noboru Sasaki, Kazuhiro Ishi, Nobuki Kudo, Shouta M M Nakayama, Kensuke Nakamura, Keitaro Morishita, Hiroshi Ohta, Mayumi Ishizuka, Mitsuyoshi Takiguchi
Published 2017-01-01

Accumulation of Heavy Metals and Metalloid in Foodstuffs from Agricultural Soils around Tarkwa Area in Ghana, and Associated Human Health Risks

by Nesta Bortey-Sam, Shouta M. M. Nakayama, Osei Akoto, Yoshinori Ikenaka, Julius N. Fobil, Elvis Baidoo, Hazuki Mizukawa, Mayumi Ishizuka
Published 2015-07-01

Neonicotinoid residues in commercial Japanese tea leaves produced by organic and conventional farming methods

by Collins Nimako, Anri Hirai, Takahiro Ichise, Osei Akoto, Shouta M.M. Nakayama, Kumiko Taira, Kazutoshi Fujioka, Mayumi Ishizuka, Yoshinori Ikenaka
Published 2021-01-01

LC-ESI/MS/MS analysis of neonicotinoids in urine of very low birth weight infants at birth.

by Go Ichikawa, Ryota Kuribayashi, Yoshinori Ikenaka, Takahiro Ichise, Shouta M M Nakayama, Mayumi Ishizuka, Kumiko Taira, Kazutoshi Fujioka, Toshimi Sairenchi, Gen Kobashi, Jean-Marc Bonmatin, Shigemi Yoshihara
Published 2019-01-01

Contamination by neonicotinoid insecticides and their metabolites in Sri Lankan black tea leaves and Japanese green tea leaves

by Yoshinori Ikenaka, Kazutoshi Fujioka, Tomonori Kawakami, Takahiro Ichise, Nesta Bortey-Sam, Shouta M.M. Nakayama, Hazuki Mizukawa, Kumiko Taira, Keisuke Takahashi, Keisuke Kato, Koji Arizono, Mayumi Ishizuka
Published 2018-01-01

Monitoring Lead (Pb) Pollution and Identifying Pb Pollution Sources in Japan Using Stable Pb Isotope Analysis with Kidneys of Wild Rats

by Hokuto Nakata, Shouta M. M. Nakayama, Balazs Oroszlany, Yoshinori Ikenaka, Hazuki Mizukawa, Kazuyuki Tanaka, Tsunehito Harunari, Tsutomu Tanikawa, Wageh Sobhy Darwish, Yared B. Yohannes, Aksorn Saengtienchai, Mayumi Ishizuka
Published 2017-01-01

An Investigation of the Wild Rat Crown Incisor as an Indicator of Lead (Pb) Exposure Using Inductively Couple Plasma Mass Spectrometry (ICP-MS) and Laser Ablation ICP-MS

by Andrew Kataba, Shouta M. M. Nakayama, Hokuto Nakata, Haruya Toyomaki, Yared B. Yohannes, John Yabe, Kaampwe Muzandu, Golden Zyambo, Ayano Kubota, Takehisa Matsukawa, Kazuhito Yokoyama, Yoshinori Ikenaka, Mayumi Ishizuka
Published 2021-01-01

Investigation of mRNA expression changes associated with field exposure to DDTs in chickens from KwaZulu-Natal, South Africa.

by Lesa A Thompson, Yoshinori Ikenaka, Wageh S Darwish, Yared B Yohannes, Johan J van Vuren, Victor Wepener, Nico J Smit, Atnafu G Assefa, Ahmed Tharwat, Walaa Fathy Saad Eldin, Shouta M M Nakayama, Hazuki Mizukawa, Mayumi Ishizuka
Published 2018-01-01