Victoria R. Adams , Janice A. Dye , Micheal G. Narotsky , Makala L. Moore , Helen H. Nguyen , Aubrey L. Sasser , Kaberi P. Das , Lillian F. Strader , Joseph P. Pancras , Donna Hill , Chloe Davis , Wanda C. Williams , Rachel D. Grindstaff , William T. Padgett , Christopher Lau , Colette N. Miller
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引用次数: 0
Abstract
Background
Evaluation of the combined effects of endocrine-disrupting chemicals and dietary factors provides critical information for cumulative health risk assessment. Herein, we investigated the effects of cadmium (Cd) exposure and high fructose (HFr) diet on metabolic and reproductive health in female mice.
Methods
Female CD-1 mice were exposed to cadmium chloride (CdCl2) (0.0 ppm, 0.5 ppm, or 5.0 ppm) in drinking water with or without 59 % high fructose (HFr) diet for 7.5 weeks. Body composition, serum chemistry, hepatic lipid composition and gene expression were evaluated for metabolic disruption. To assess reproductive health, steroid hormones and estrous cyclicity were measured.
Results
The combination of Cd and HFr diet did not alter body composition, adipokines, nor circulating lipids. Conversely, this combination exacerbated the independent Cd- and HFr diet–induced reductions in serum IL-1β. HFr diet drove the bulk of the effects on surveyed metabolic endpoints irrespective of Cd exposure. However, both Cd and HFr diet independently reduced serum estradiol and interfered with estrous cyclicity.
Conclusion
These results suggest that, at least for metabolic outcomes in females, HFr diet is the main driver of adverse effects. While limited interaction between these exposures was present, both stressors equally disrupted reproductive health endpoints in female mice.
期刊介绍:
Food and Chemical Toxicology (FCT), an internationally renowned journal, that publishes original research articles and reviews on toxic effects, in animals and humans, of natural or synthetic chemicals occurring in the human environment with particular emphasis on food, drugs, and chemicals, including agricultural and industrial safety, and consumer product safety. Areas such as safety evaluation of novel foods and ingredients, biotechnologically-derived products, and nanomaterials are included in the scope of the journal. FCT also encourages submission of papers on inter-relationships between nutrition and toxicology and on in vitro techniques, particularly those fostering the 3 Rs.
The principal aim of the journal is to publish high impact, scholarly work and to serve as a multidisciplinary forum for research in toxicology. Papers submitted will be judged on the basis of scientific originality and contribution to the field, quality and subject matter. Studies should address at least one of the following:
-Adverse physiological/biochemical, or pathological changes induced by specific defined substances
-New techniques for assessing potential toxicity, including molecular biology
-Mechanisms underlying toxic phenomena
-Toxicological examinations of specific chemicals or consumer products, both those showing adverse effects and those demonstrating safety, that meet current standards of scientific acceptability.
Authors must clearly and briefly identify what novel toxic effect (s) or toxic mechanism (s) of the chemical are being reported and what their significance is in the abstract. Furthermore, sufficient doses should be included in order to provide information on NOAEL/LOAEL values.