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Skatole of gut origin has garnered significant attention as a malodorous pollutant due to its escalating emissions, recalcitrance to biodegradation and harm to animal and human health. Magnolol is a health-promoting polyphenol with potential to considerably mitigate the skatole production in the intestines. To investigate the impact of magnolol and its underlying mechanism on the skatole formation, in vivo and in vitro experiments were conducted in pigs. Our results revealed that skatole concentrations in the cecum, colon, and faeces decreased by 58.24% (P = 0.088), 44.98% (P < 0.05) and 43.52% (P < 0.05), respectively, following magnolol supplementation. Magnolol supplementation significantly decreased the abundance of Lachnospira, Faecalibacterium, Paramuribaculum, Faecalimonas, Desulfovibrio, Bariatricus, and Mogibacterium within the colon (P < 0.05). Moreover, a strong positive correlation (P < 0.05) between skatole concentration and Desulfovibrio abundance was observed. Subsequent in silico studies showed that magnolol could dock well with indolepyruvate decarboxylase (IPDC) within Desulfovibrio. Further in vitro investigation unveiled that magnolol addition led to less indole-3-pyruvate diverted towards the oxidative skatole pathway by the potential docking of magnolol towards IPDC, thereby diminishing the conversion of substrate into skatole. Our findings offer novel targets and strategies for mitigating skatole emission from the source.
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http://dx.doi.org/10.1016/j.jhazmat.2024.133423 | DOI Listing |
Front Mol Biosci
August 2025
School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamilnadu, India.
Piglets at weaning experience stress owing to environmental changes. Mixing unfamiliar littermates also induces fighting and biting behaviors among them, affecting their welfare. In addition, post-weaning weight gain or loss is also influenced during the first week of weaning.
View Article and Find Full Text PDFPLoS One
June 2025
Department of Laboratory Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea.
There are many factors that can cause olfactory dysfunction, including upper respiratory tract viral infections, non-inflammatory respiratory diseases, trauma, and current treatments such as medications and surgery can have adverse effects and may not respond. Therefore, we aimed to develop a natural product-based adjunctive treatment strategy for olfactory dysfunction that is safe and has minimal adverse effects. We investigated the effects of extracts from Erigeron annuus and Carthamus tinctorius, which have demonstrated anti-apoptotic, neuroprotective, and anti-inflammatory activities, on 3-methylindole-induced olfactory dysfunction.
View Article and Find Full Text PDFFood Res Int
May 2025
DiSTAL - Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Food Science Campus, P.za G. Goidanich, 60, 47521 Cesena, Italy; CIRI - Interdepartmental Centre of Agri-Food Industrial Research, Alma Mater Studiorum - University of Bologna, P.za G. Goidanich, 60,
Due to the increasing incidence of individuals with metabolic syndrome and the higher correlations between metabolic syndrome and the gut microbiota, there is a need to formulate functional foods that can promote the development of beneficial microorganisms within the gut microbiota. This study aims to evaluate the possible positive effects of innovative gluten-free flatbread, containing grape and apple antioxidant-rich by-products, on the gut microbiota of patients with metabolic syndrome. The baked products were subjected to gastric digestion using the Infogest system, followed by proximal colonic fermentation in the MICODE (Multi-Unit In vitro Colon Model) intestinal model, where three samplings were performed (baseline, after 16 h and 24 h).
View Article and Find Full Text PDFFood Funct
May 2025
School of Chemical Engineering and Technology, Tianjin, University, Tianjin, 300350, China.
Food-derived compounds represent a promising reservoir for developing novel therapeutic agents against pathogenic infections such as Typhimurium. In this study, we integrated computational biology with experimental validation to identify and characterize quorum sensing interference molecules (QSIMs) from food-derived compounds. Through structure-based virtual screening of more than 8000 compounds in the FooDB database, we identified the potential candidates (such as skatole, 2-aminoquinoline, tricarballylic acid, and L-3-phenyllactic acid) demonstrating high affinity binding to the LsrB receptor, as validated by surface plasmon resonance analysis.
View Article and Find Full Text PDFActa Pharmacol Sin
September 2025
State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
Estrogen-related receptor γ (ERRγ) is an orphan nuclear receptor in the ERR subfamily that plays a crucial role in regulating energy metabolism. To date, no endogenous ligand has been identified for ERRγ, posing a challenge for developing targeted therapeutics. Here, we identified that indole and skatole produced by the gut microbiota are potential endogenous ligands of ERRγ using biochemical, cellular, structural, and computational approaches.
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