{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T16:23:32Z","timestamp":1792427012735,"version":"4.5.0"},"reference-count":38,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T00:00:00Z","timestamp":1741651200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Applied Toxicology"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Despite the high frequency of pregnancies complicated by abnormal glucose metabolism associated with obesity, methylmercury (MeHg) metabolism in pregnant women with abnormal glucose metabolism is unclear. We aimed to elucidate the MeHg tissue distribution in obese female mice with abnormal glucose metabolism and their fetuses. Female C57BL\/6J mice were fed a high\u2010fat diet (HFD) or a standard diet (Ctrl) for 12\u2009weeks and mated. HFD mice showed mild glucose metabolism abnormalities as assessed by an oral glucose tolerance test. Maternal tissues (brain, liver, and kidney) and blood (plasma and blood cells) and fetal tissues (brain, liver, kidney, and placenta) were collected from these mice 24\u2009h after oral administration of MeHg (a single dose of 1 or 5\u2009mg Hg\/kg) on Day 16 of mating. The total mercury level was determined in each sample, and its distribution to each tissue was estimated using <jats:italic>K<\/jats:italic><jats:sub><jats:italic>p<\/jats:italic><\/jats:sub> values (total mercury in each tissue\/total mercury in maternal plasma). The <jats:italic>K<\/jats:italic><jats:sub><jats:italic>p<\/jats:italic><\/jats:sub> values for the maternal brain and liver were lower in HFD mice than in Ctrl mice, but no significant difference between groups was observed in the kidney or blood cells. The <jats:italic>K<\/jats:italic><jats:sub><jats:italic>p<\/jats:italic><\/jats:sub> values for all fetal tissues were lower in HFD mice than in Ctrl mice. Pregnant mice showed higher <jats:italic>K<\/jats:italic><jats:sub><jats:italic>p<\/jats:italic><\/jats:sub> values for the brain and lower <jats:italic>K<\/jats:italic><jats:sub><jats:italic>p<\/jats:italic><\/jats:sub> values for the kidney than those in nonpregnant mice, regardless of diet. These results will provide useful information to assess the risk of MeHg in obese mothers with glucose metabolism abnormalities and their fetuses.<\/jats:p>","DOI":"10.1002\/jat.4777","type":"journal-article","created":{"date-parts":[[2025,3,12]],"date-time":"2025-03-12T05:03:49Z","timestamp":1741755829000},"page":"1305-1313","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Tissue Distribution of Methylmercury in Obese Pregnant Mice and Fetuses"],"prefix":"10.1002","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4301-3827","authenticated-orcid":false,"given":"Megumi","family":"Yamamoto","sequence":"first","affiliation":[{"name":"Department of Environment and Public Health National Institute for Minamata Disease  Minamata Kumamoto 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