Assessment of the protective effect of yeast cell wall β‐glucan encapsulating humic acid nanoparticles as an aflatoxin B1 adsorbent in vivo

Abstract This study aimed to assess the protective effect of encapsulating humic acid‐iron complexed nanoparticles (HA‐Fe NPs) inside glucanmannan lipid particles (GMLPs) extracted from yeast cell wall against aflatoxin B (AFB 1 ) toxicity in vivo. Four groups of male Sprague‐Dawley rats were treated orally for 2 weeks included the control group, AFB 1 treated group (80 µg/kg b.w); GMLP/HA‐Fe NPs treated group (0.5 mg/kg b.w), and the group treated with AFB 1 plus GMLP/HA‐Fe NPs. GMLPs are empty 3–4 micron permeable microspheres that provide an efficient system for the synthesis and encapsulation of AFB 1 ‐absorbing nanoparticles (NPs). Humic acid nanoparticles (HA‐NPs) were incorporated inside the GMLP cavity by complexation with ferric chloride. In vivo study revealed that AFB 1 significantly elevated serum alanine aminotransferase, aspartate aminotransferase, creatinine, uric acid, urea, cholesterol, triglycerides, LDL, malondialdehyde, and nitric oxide. It significantly decreased total protein, high‐density lipoprotein, hepatic and renal CAT and glutathione peroxidase content and induced histological changes in the liver and kidney ( p ≤ 0.05). The coadministration of the synthesized formulation GMLP/HA‐Fe NPs with AFB 1 has a protective effect against AFB 1 ‐induced hepato‐nephrotoxicity, oxidative stress and histological alterations in the liver and kidney.