ArticleNutrition & metabolism2024
Quinoa ameliorates polycystic ovary syndrome via regulating gut microbiota through PI3K/AKT/mTOR pathway and autophagy.
Article in Nutrition & metabolism, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Effects of Total Flavonoids FromFood science & nutrition · 2026Article
- The crosslink between autophagy and ferroptosis in polycystic ovary syndrome: from synergistic pathogenesis to targeted therapy.Journal of ovarian research · 2026Review
- β-sitosterol improves the pathological progression of PCOS by targeting ESR1 to inhibit autophagy activity.Journal of ovarian research · 2026Article
- Lobetyolin reshapes gut microbiota and bile acid metabolism to improve androgen-driven PCOS phenotypes in mice.Frontiers in microbiology · 2026Article
- Recent Advances in the Therapeutic Potential of Bioactive Molecules from Plants of Andean Origin.Nutrients · 2025Review
- Semaglutide Alleviates Ovarian Oxidative Stress and Autophagy via the PI3K/AKT/mTOR Pathway in Mice with Polycystic Ovary Syndrome.Drug design, development and therapy · 2025Article
- The role of traditional Chinese medicine in modulating gut microbiota to alleviating insulin resistance in polycystic ovary syndrome.Frontiers in nutrition · 2025Review
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11 authors.
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Abstract
backgroundPolycystic ovary syndrome (PCOS) is a unity of endocrine and metabolic disorders, associated with PI3K/AKT/mTOR, autophagy, and gut microbiota. Quinoa is a valuable food source, which contains rich minerals, unsaturated fatty acids, and has a positive modulating effect on metabolic diseases. However, its effects and potential mechanisms on PCOS have not been reported yet. Therefore, the purpose of this study is to investigate the effect of quinoa on PCOS rats by regulating PI3K/AKT/mTOR, autophagy, and gut microbiota.
methodsTen-week-old female Sprague-Dawley (SD) rats have received letrozole for 24 days for induction of PCOS and subsequently were treated with a quinoa diet for 8 weeks. Vaginal smears were used to analyze the estrous cycle of rats. Hormone and biochemical indexes were analyzed by kit assays and glucometer. The pathological changes of ovary, pancreas, duodenum and colon were observed by HE staining. PI3K, AKT, mTOR and autophagy-related proteins in the ovary and colon were measured by western blot and immunohistochemistry staining. Tight junction proteins in colon were measured by immunohistochemistry staining. 16 s rDNA sequencing was used to detect the changes of intestinal microbiota in rats. Network pharmacology and molecular docking were used to study the possible targets and mechanisms of quinoa on PCOS. Spearman correlation analysis was used to study the relationship between intestinal microbial abundance and hormone levels of PCOS rats at the phylum and genus level.
resultsQuinoa significantly improved estrous cycle and biochemical parameters of PCOS-like rats, and the pathological state of ovary, pancreas, duodenum and colon tissues. Especially, quinoa significantly regulated the expression of PI3K, AKT, mTOR and autophagy-related proteins in the ovary. Quinoa may repair the intestinal barrier by upregulating the expression of tight junction proteins in the colon, and regulate autophagy-related factors in colon. Additionally, quinoa increased the abundance of Lactobacillu, Bacteroides and Oscillospira, and decreased the Firmicutes/Bacteroidetes ratio and the Blautia, and Prevotella, reversing the dysregulation of the gut microbiota. Correlation analysis showed that there is a strong correlation between gut microbiota with significant changes in abundance and hormone related to PCOS.
conclusionOur result indicated that effect of quinoa on PCOS maybe associated with activation of the PI3K/AKT/mTOR signaling pathway, inhibition of autophagy, and regulation of intestinal flora.
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