ArticleToxics2024
Chromium Selectively Accumulates in the Rat Hippocampus after 90 Days of Exposure to Cr(VI) in Drinking Water and Induces Age- and Sex-Dependent Metal Dyshomeostasis.
Article in Toxics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The trial behind it
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Who cites it
7 citing papers in PubMed.
- Kolaviron offers significant neuroprotection on potassium dichromate-induced neurobehavioral, biochemical, histopathological, and immunohistochemical changes in rats.IBRO neuroscience reports · 2026Article
- Hexavalent Chromium Oropharyngeal Aspiration Induced Behavior Effects and Essential Metal Dyshomeostasis in Young Hartley Guinea Pigs.Applied sciences (Basel, Switzerland) · 2026Article
- Hexavalent chromium neurotoxicity in Caenorhabditis elegans targeted GABAergic, cholinergic, and dopaminergic neurons, and contributed to an aged phenotype.Neurotoxicology · 2025Article
- Oropharyngeal aspiration of particulate hexavalent chromium increases chromium levels in lung and liver, and induces essential metal dyshomeostasis in lung, liver, and blood.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025Article
- Exposure to low levels of hexavalent chromium in drinking water alters diet-induced steatotic liver disease in male rats.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025Article
- Extracellular Cr(VI) Reduction by the Salt-Tolerant StrainMicroorganisms · 2025Article
- Current Insights into Plausible Mechanisms of Chromium (VI) Neurotoxicity in the Brain and Future Perspectives.Medical journal of the Islamic Republic of Iran · 2025Article
Corrections and comments
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Authors and funding
18 authors.
Funding
Abstract
Hexavalent chromium (Cr[VI]) is a widespread environmental pollutant in air and water that is primarily attributed to industrial pollution. The current maximum contaminant levels (MCLs) for drinking water from the World Health Organization and the U.S. Environmental Protection Agency (0.05 and 0.1 mg/L, respectively) were set based on contact dermatitis and warrant further toxicological investigation. While Cr(VI) is neurotoxic and accumulates in the brain, most animal studies only report whole-brain Cr, leaving large knowledge gaps. Few studies consider differences between ages or sexes, and fewer consider essential metal dyshomeostasis. We sought to investigate where Cr accumulates in the brain, considering sex and age differences, following a 90-day drinking water exposure to current MCLs. Here, we report Cr levels in six brain regions of rats exposed to drinking water Cr(VI). We observed Cr only accumulated in the hippocampus, and only in older females. We further assessed changes to essential metals in the hippocampus, observing opposite effects across sexes and between young rats compared to older rats. In sum, our data indicate drinking water Cr(VI) selectively targeted the hippocampus, with geriatric females accumulating the most Cr, and induced significant essential metal dyshomeostasis even in tissues lacking evident Cr accumulation.
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