{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T18:31:03Z","timestamp":1770143463800,"version":"3.49.0"},"reference-count":57,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,6,8]],"date-time":"2025-06-08T00:00:00Z","timestamp":1749340800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"National Science Center in Poland","doi-asserted-by":"publisher","award":["2021\/41\/B\/NZ9\/01104"],"award-info":[{"award-number":["2021\/41\/B\/NZ9\/01104"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antioxidants"],"abstract":"<jats:p>The study aimed to determine the effect of dietary inclusion of the recommended (6.5 mg Cu\/kg diet) or double the recommended (13.0 mg Cu\/kg diet) levels of copper nanoparticles (CuNPs) in combination with different types of dietary fibre on selected redox status indicators in the blood and tissues of male Wistar rats. Control groups were fed diets containing cellulose and a mineral mixture with standard or enhanced content of CuCO3. The experimental groups were fed a diet supplemented with CuNPs (6.5 or 13 mg\/kg) and combined with various fibre types\u2014cellulose, pectin, inulin, or psyllium. After the feeding period, rats\u2019 organs were collected to assess selected indicators of redox status. The obtained results suggest that the addition of dietary fibre in the form of inulin may beneficially stimulate the response of the redox system in the conditions of CuNPs nutrition at the recommended dose, pectin, or psyllium in the case of an excessive supply of CuNPs in the diet. Thus, selecting the appropriate type of dietary fibre based on the CuNPs\u2019 level in the diet may effectively protect the organism from the potentially harmful prooxidative effect of CuNPs, ultimately contributing to a favourable regulation of their metabolic impact in the body.<\/jats:p>","DOI":"10.3390\/antiox14060695","type":"journal-article","created":{"date-parts":[[2025,6,9]],"date-time":"2025-06-09T08:22:34Z","timestamp":1749457354000},"page":"695","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Inulin Improves the Redox Response in Rats Fed a Diet Containing Recommended Copper Nanoparticle (CuNPs) Levels, While Pectin or Psyllium in Rats Receive Excessive CuNPs Levels in the Diet"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4074-1570","authenticated-orcid":false,"given":"Aleksandra","family":"Marzec","sequence":"first","affiliation":[{"name":"Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0437-4766","authenticated-orcid":false,"given":"Ewelina","family":"Cholewi\u0144ska","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9727-7481","authenticated-orcid":false,"given":"Bartosz","family":"Fotschki","sequence":"additional","affiliation":[{"name":"Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tryli\u0144skiego 18, 10-683 Olsztyn, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0068-5970","authenticated-orcid":false,"given":"Jerzy","family":"Ju\u015bkiewicz","sequence":"additional","affiliation":[{"name":"Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tryli\u0144skiego 18, 10-683 Olsztyn, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katarzyna","family":"Ognik","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,6,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Malik, S., Muhammad, K., and Waheed, Y. 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