Andrew Kataba, Tarryn L. Botha, Shouta M.M Nakayama, Yared B. Yohannes, Yoshinori Ikenaka, Victor Wepener, Mayumi Ishizuka. Environmentally relevant lead (Pb) water concentration induce toxicity in zebrafish (Danio rerio) larvae. Comparative Biochemistry and Physiology, Part C (2021, in press)
Collins Nimako, Anri Hirai, Takahiro Ichise, Osei Akoto, Shouta M.M. Nakayama, Kumiko Taira, Kazutoshi Fujioka, Mayumi Ishizuka, Yoshinori Ikenaka. Neonicotinoid residues in commercial Japanese tea leaves produced by organic and conventional farming methods. Toxicology Reports. 8:1657-1664 (2021) DOI: 10.1016/j.toxrep.2021.09.002
Walubita Mufalo, Pawit Tangviroon, Toshifumi Igarashi, Mayumi Ito, Tsutomu Sato, Meki Chirwa, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka. Solid-phase partitioning and leaching behavior of Pb and Zn from playground soils in Kabwe, Zambia. Toxics. 9(10) :248 (2021) DOI: 10.3390/toxics9100248
Tetsushi Hirano, Nihei Suzuki, Yoshinori Ikenaka, Nobuhiko Hoshi, Yoshiaki Tabuchi. Neurotoxicity of a pyrethroid pesticide deltamethrin is associated with the imbalance in proteolytic systems caused by mitophagy activation and proteasome inhibition. Toxicology and Applied Pharmacology. 430:115723 (2021) DOI: 10.1016/j.taap.2021.115723
Noboru Sasaki, Thandar Oo, Yoshikazu Yasuda, Takahiro Ichise, Noriyuki Nagata, Nozomu Yokoyama, Kazuyoshi Sasaoka, Keitaro Morishita, Shouta MM Nakayama, Mayumi Ishizuka, Kensuke Nakamura, Mitsuyoshi Takiguchi, Yoshinori Ikenaka. Simultaneous steroids measurement in dogs with hyperadrenocorticism using a column-switching liquid chromatography-tandem mass spectrometry method. JVMS (2021) DOI: 10.1292/jvms.21-0406
Andrew KATABA, Shouta M.M. NAKAYAMA (Co-corresponding), Yared Beyene YOHANNES, Haruya TOYOMAKI, Hokuto NAKATA, Yoshinori IKENAKA, Mayumi ISHIZUKA (Co-corresponding). Effects of zinc on tissue uptake and toxicity of lead in Sprague Dawley rat. JVMS (2021) DOI: 10.1292/jvms.20-0684
Yared Beyene Yohannes (Equal contribution), Shouta M. M. Nakayama (Equal contribution, Co-corresponding), John Yabe, Haruya Toyomaki, Andrew Kataba, Hokuto Nakata, Kaampwe Muzandu, Yoshinori Ikenaka, Kennedy Choongo, Mayumi Ishizuka (Co-corresponding). Glutathione S-transferase gene polymorphisms in association with susceptibility to lead toxicity in lead- and cadmium-exposed children near an abandoned lead-zinc mining area in Kabwe, Zambia. Environ Sci Pollut Res. (2021) DOI: 10.1007/s11356-021-16098-1
Collins NIMAKO, Yoshinori IKENAKA, Osei Akoto, Kazutoshi FUJIOKA, Kumiko TAIRA, Koji ARIZONO, Keisuke KATO, Keisuke TAKAHASHI, Shouta M.M. NAKAYAMA, Takahiro ICHISE, Mayumi ISHIZUKA. Simultaneous Quantification of Imidacloprid and its Metabolites in Tissues of Mice upon Chronic Low-dose Administration of Imidacloprid. Journal of Chromatography A. 1652: 462350 (2021) DOI: 10.1016/j.chroma.2021.462350
Tzu-Hsuen Yuan, Meng-Ting Yu, Yoshinori Ikenaka, Yi-Hsuan Chen, Shoji F Nakayama, Chang-Chuan Chan. Characteristics of neonicotinoid and metabolite residues in Taiwanese tea leaves. Journal of The Science of Food and Agriculture (2021, in press) DOI: 10.1002/jsfa.11363
Haruya Toyomaki, John Yabe, Shouta M.M. Nakayama* (Corresponding), Yared Beyene Yohannes, Kaampwe Muzandu, Tiza Mufune, Hokuto Nakata, Yoshinori Ikenaka, Takeshi Kuritani, Mitsuhiro Nakagawa, Kennedy Choongo, Mayumi Ishizuka. Lead concentrations and isotope ratios in blood, breastmilk and feces: contribution of both lactation and soil/dust exposure to infants in a lead mining area, Kabwe, Zambia. Environmental Pollution. 117456. (2021) DOI: 10.1016/j.envpol.2021.117456
Jumpei Yamazaki, Haruya Toyomaki, Shouta M.M. Nakayama*(Corresponding), John Yabe, Kaampwe Muzandu, Jaroslav Jelinek, Shoko Yokoyama, Yoshinori Ikenaka, Mitsuyoshi Takiguchi, Mayumi Ishizuka. Genome-wide DNA methylation analysis of dogs with high lead exposure living near a lead mining area in Kabwe, Zambia. Environmental Pollution. 117229 (2021) DOI: 10.1016/j.envpol.2021.117229
Ryu Miura, Atsuko Araki, Toru Ishihara, Kunio Miyake, Chihiro Miyashita, Tamie Nakajima, Kobayashi Sumitaka, Mayumi Ishizuka, Takeo Kubota, Reiko Kishi. Effect of prenatal exposure to phthalates on epigenome-wide DNA methylations in cord blood and implications for fetal growth: The Hokkaido Study on Environment and Children’s Health. Science of the Total Environment. 147035 (2021) DOI: 10.1016/j.scitotenv.2021.147035
Y. Sajiki; S. Konnai; Y. Ikenaka; T. Okagawa; N. Maekawa; C. Logullo; I. da Silva Vaz; S. Murata; K. Ohashi. Prostaglandin-related immune suppression in cattle. Veterinary Immunology and Immunopathology. 110238 (2021) DOI: 10.1016/j.vetimm.2021.110238
Collins Nimako, Yoshinori Ikenaka, Osei Akoto, Nesta Bortey-Sam, Takahiro Ichise, Shouta M.M. Nakayama, Kwadwo A. Asante, Kazutoshi Fujioka, Kumiko Taira, Mayumi Ishizuka. Human Exposures to Neonicotinoids in Kumasi, Ghana. Environmental Toxicology and Chemistry (in press, 2021) DOI: 10.1002/etc.5065
Collins NIMAKO, Yoshinori IKENAKA, Yuko OKAMATSU-OGURA, Jussiaea V. BARIUAN, Atsushi KOBAYASHI, Ryo YAMAZAKI, Kumiko TAIRA, Nobuhiko HOSHI, Tetsushi HIRANO, Shouta M. M. NAKAYAMA, Mayumi ISHIZUKA. Chronic low-dose exposure to imidacloprid potentiates high fat diet-mediated liver steatosis in C57BL/6J male mice. JVMS (2021) DOI: 10.1292/jvms.20-0479
Hokuto Nakata, Harukazu Tohyama, Wakako Fujita, Shouta M.M. Nakayama, Mayumi Ishizuka, John Yabe, Nosiku S. Munyinda, Doreen Sakala, Kennedy Choongo, Shojiro Yamasaki, Natsumi Nagai, Takahiko Yoshida, Takeshi Saito. The impact of elevated blood lead levels in children on maternal health-related quality of life. Chemosphere. 130490 (2021) DOI: 10.1016/j.chemosphere.2021.130490
Ryouta Torimoto, Chihiro Ishii, Hiroshi Sato, Keisuke Saito, Yukiko Watanabe, Kohei Ogasawara, Ayano Kubota, Takehisa Matsukawa, Kazuhito Yokoyama, Atsushi Kobayashi*, Takashi Kimura, Shouta M. M. Nakayama, Yoshinori Ikenaka, Mayumi Ishizuka. Analysis of lead distribution in avian organs by LA-ICP-MS: study of experimentally lead-exposed ducks and kites. Environmental Pollution. 117086 (2021) DOI: 10.1016/j.envpol.2021.117086
Tomohiro Suzuki, Anri Hirai, Kraisiri Khidkhana, Collins Nimako, Takahiro Ichise, Kazuki Takeda, Hazuki Mizukawa, Shouta M.M. Nakayama, Kei Nomiyama, Nobuhiko Hoshi, Mizuki Maeda, Tetsushi Hirano, Kazuyoshi Sasaoka, Noboru Sasaki, Mitsuyoshi Takiguchi, Mayumi Ishizuka, Yoshinori Ikenaka. The effects of fipronil on emotional and cognitive behaviors in mammals. Pesticide Biochemistry and Physiology. 104847 (2021) DOI: 10.1016/j.pestbp.2021.104847
Akiko Shoji, Kyle H. Elliott, Yutaka Watanuki, Niladri Basu, Shannon Whelan, Joshua Cunningham, Scott Hatch, Hazuki Mizukawa, Shouta M.M.Nakayama, YoshinoriIkenaka, Mayumi Ishizuka, StéphaneAris-Brosou. Geolocators link marine mercury with levels in wild seabirds throughout their annual cycle: consequences for trans-ecosystem biotransport. Environmental Pollution. 117035 (2021) DOI: 10.1016/j.envpol.2021.117035
Yoshiya Yamamura, Kazuki Takeda, Yusuke K. Kawai, Yoshinori Ikenaka, Chiyo Kitayama, Satomi Kondo, Chiho Kezuka, Mari Taniguchi, Mayumi Ishizuka, Shouta M.M. Nakayama (Corresponding). Sensitivity of turtles to anticoagulant rodenticides: risk assessment for green sea turtles (Chelonia mydas) in the Ogasawara Islands and comparison of warfarin sensitivity among turtle species. Aquatic Toxicology. 233: 105792 (2021) DOI: 10.1016/j.aquatox.2021.105792
Noboru Sasaki, Yoshinori Ikenaka, Yumiko Inoue, Takahiro Ichise, Noriyuki Nagata, Mayumi Ishizuka, Shouta MM Nakayama, Kensuke Nakamura, Mitsuyoshi Takiguchi. Urinary free metanephrines measurement in dogs with adrenal gland diseases using a new simple liquid chromatography tandem mass spectrometry method. JVMS. (2021, in press)
Tetsushi Hirano, Yuka Miyata, Shizuka Kubo, Shuji Ohno, Kanoko Onaru, Mizuki Maeda, Sayaka Kitauchi, Misaki Nishi, Yoshiaki Tabuchi, Yoshinori Ikenaka, Takahiro Ichise, Shouta M M Nakayama, Mayumi Ishizuka, Koji Arizono, Keisuke Takahashi, Keisuke Kato, Youhei Mantani, Toshifumi Yokoyama, Nobuhiko Hoshi. Aging-related changes in the sensitivity of behavioral effects of the neonicotinoid pesticide clothianidin in male mice. Toxicology Letters. 342: 95-103 (2021) DOI: 10.1016/j.toxlet.2021.02.010
Mayuka Uchida, Ippei Suzuki, Keizo Ito, Mayumi Ishizuka, Yoshinori Ikenaka, Shouta M. M. Nakayama, Tsutomu Tamura, Kenji Konishi, Takeharu Bando, Yoko Mitani. Estimation of the feeding record of pregnant Antarctic minke whales (Balaenoptera bonaerensis) using carbon and nitrogen stable isotope analysis of baleen plates. Polar Biology. (2021) DOI: 10.1007/s00300-021-02816-5
Nakata H (Equal contribution), Nakayama SMM (Equal contribution, Co-corresponding), Yabe J, Muzandu K, Toyomaki H, Yohannes YB, Kataba A, Zyambo G, Ikenaka Y, Choongo K, Ishizuka M (Co-corresponding). Assessment of LeadCare® II analysis for testing of a wide range of blood lead levels in comparison with ICP–MS analysis. Chemosphere. 129832 (2021) DOI: 10.1016/j.chemosphere.2021.129832
Andrew Kataba, Shouta MM Nakayama (Co-corresponding), Hokuto Nakata, Haruya Toyomaki, Yared B Yohannes, John Yabe, Kaampwe Muzandu, Golden Zyambo, Ayano Kubota, Takehisa Matsukawa, Kazuhito Yokoyama, Yoshinori Ikenaka, Mayumi Ishizuka (Co-corresponding). 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. International Journal of Environmental Research and Public health. 18(2):767 (2021) DOI: 10.3390/ijerph18020767
Kazuki Takeda, Yoshinori Ikenaka, Denis Fourches, Kazuyuki D. Tanaka, Shouta M.M. Nakayama, Dhoha Triki, Xinhao Li, Manabu Igarashi, Tsutomu Tanikawa, Mayumi Ishizuka. The VKORC1 ER-luminal loop mutation (Leu76Pro) leads to a significant resistance to warfarin in black rats (Rattus rattus). Pesticide Biochemistry and Physiology. 104774 (2021) DOI: 10.1016/j.pestbp.2021.104774
Hokuto Nakata, Shouta M.M. Nakayama, Andrew Kataba, Yared Beyene Yohannes, Yoshinori Ikenaka, Mayumi Ishizuka. Evaluation of the ameliorative effect of Spirulina (Arthrospira platensis) supplementation on parameters relating to lead poisoning and obesity in C57BL/6J mice. Journal of Functional Foods. (2021, in press)
Yared B. Yohannes, Shouta M.M. Nakayama (Co-corresponding), John Yabe, Haruya Toyomaki, Andrew Kataba, Hokuto Nakata, Kaampwe Muzandu, Yoshinori Ikenaka, Kennedy Choongo, Mayumi Ishizuka (Co-corresponding). Delta-aminolevulinic acid dehydratase (ALAD) and vitamin D receptor (VDR) genes polymorphisms in children residing in an abandoned lead-zinc mine area. Meta Gene. 27 (2021) DOI: 10.1016/j.mgene.2020.100838
Ruan Gerber, Hindrik Bouwman, Danny Govender, Mayumi Ishizuka, Yoshinori Ikenaka, Yared B.Yohannes, Nico J.Smit, Victor Wepener. Levels of DDTs and other organochlorine pesticides in healthy wild Nile crocodiles (Crocodylus niloticus) from a flagship conservation area. Chemosphere. 128368 (2021)DOI: 10.1016/j.chemosphere.2020.128368