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Ognik, Katarzyna, 2025, "The Effect of Copper Nanoparticles on Liver Metabolism Depends on the Type of Dietary Fiber", https://doi.org/10.18150/1FCZ3U, RepOD, V1
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Background/Objectives: A diet enriched with copper nanoparticles (CuNPs) exhibits a wide range of effects on liver metabolism, both positive and negative. Dietary fibers are the key components that may affect the absorption of minerals, including copper, and change their impact on organisms. Methods: Therefore, this study investigated whether and how supplementation with different sources of dietary fiber (cellulose, pectin, inulin, and psyllium) affects the function of CuNPs in the liver of male Wistar rats. Results: The results showed that CuNPs at different doses had varying effects on lipid metabolism and inflammation in the liver. Specifically, higher doses of CuNPs were associated with increased lipid accumulation and the activation of pro-inflammatory mechanisms. However, combining CuNPs with dietary fibers, such as psyllium and inulin, was beneficial in mitigating the effects of the examined nanoparticles, leading to reduced fat, cholesterol, and triglycerides in the liver. Combining psyllium with CuNPs showed the most substantial effect on liver metabolism and inflammation parameters. Furthermore, hepatic histology analyses showed that adding psyllium to the diet with CuNPs reduces changes associated with fat accumulation and mononuclear cell infiltration. The observed beneficial changes in the liver may have been related to a reduction in the gene expression level of sterol regulatory element-binding protein 1 and peroxisome proliferator-activated receptor gamma and cyclooxygenase-2. Conclusions: In conclusion, enriching the diet with dietary fibers such as psyllium can regulate the action of CuNPs, thereby improving lipid metabolism and reducing inflammation in the liver.
Marzec, A.; Fotschki, B.; Napiórkowska, D.; Fotschki, J.; Cholewińska, E.; Listos, P.; Juśkiewicz, J.; Ognik, K. The Effect of Copper Nanoparticles on Liver Metabolism Depends on the Type of Dietary Fiber. Nutrients 2024, 16, 3645 https://www.mdpi.com/2072-6643/16/21/3645 doi: https://doi.org/10.3390/nu16213645
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