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Li X, Li J, Ji J, Li S, Yao X, Fan H, Yao R. Gut microbiota modification by diosgenin mediates antiepileptic effects in a mouse model of epilepsy. J Neurochem 2023. [PMID: 38115597 DOI: 10.1111/jnc.16033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/01/2023] [Accepted: 12/10/2023] [Indexed: 12/21/2023]
Abstract
Diosgenin, a natural steroid saponin, holds promise as a multitarget therapeutic for various diseases, including neurodegenerative conditions. Its efficacy in slowing Alzheimer's disease, Parkinson's disease, multiple sclerosis, and stroke progression has been demonstrated. However, the role of diosgenin in anti-epilepsy and its potential connection to the modulation of the intestinal microbiota remain poorly understood. In this study, exogenous diosgenin significantly mitigated pentylenetetrazole (PTZ)-induced seizures, learning and memory deficits, and hippocampal neuronal injury. 16S ribosomal RNA (16S rRNA) sequencing revealed a reversal in the decrease of Bacteroides and Parabacteroides genera in the PTZ-induced mouse epileptic model following diosgenin treatment. Fecal microbiota transplantation (FMT) experiments illustrated the involvement of diosgenin in modulating gut microbiota and providing neuroprotection against epilepsy. Our results further indicated the repression of enteric glial cells (EGCs) activation and the TLR4-MyD88 pathway, coupled with reduced production of inflammatory cytokines in the colonic lumen, and improved intestinal barrier function in epilepsy mice treated with diosgenin or FMT. This study suggests that diosgenin plays a role in modifying gut microbiota, contributing to the alleviation of intestinal inflammation and neuroinflammation, ultimately inhibiting epilepsy progression in a PTZ-induced mouse model. Diosgenin emerges as a potential therapeutic option for managing epilepsy and its associated comorbidities.
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Affiliation(s)
- Xinyu Li
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jing Li
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jia Ji
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Saisai Li
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaoyu Yao
- Rehabilitation Therapy, Fenyang College of Shanxi Medical University, Fenyang, Shanxi, China
| | - Hongbin Fan
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
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Hu Q, Yu L, Zhai Q, Zhao J, Tian F. Anti-Inflammatory, Barrier Maintenance, and Gut Microbiome Modulation Effects of Saccharomyces cerevisiae QHNLD8L1 on DSS-Induced Ulcerative Colitis in Mice. Int J Mol Sci 2023; 24:ijms24076721. [PMID: 37047694 PMCID: PMC10094816 DOI: 10.3390/ijms24076721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
The use of probiotics has been considered as a new therapy option for ulcerative colitis (UC), and yeast has recently received widespread recommendation for human health. In this study, the probiotic characteristics of four yeast strains, Saccharomyces boulardii CNCMI-745, Kluyveromyces marxianus QHBYC4L2, Saccharomyces cerevisiae QHNLD8L1, and Debaryomyces hansenii QSCLS6L3, were evaluated in vitro; their ability to ameliorate dextran sulfate sodium (DSS)-induced colitis was investigated. Among these, S. cerevisiae QHNLD8L1 protected against colitis, which was reflected by increased body weight, colon length, histological injury relief, decreased gut inflammation markers, and intestinal barrier restoration. The abundance of the pathogenic bacteria Escherichia–Shigella and Enterococcaceae in mice with colitis decreased after S. cerevisiae QHNLD8L1 treatment. Moreover, S. cerevisiae QHNLD8L1 enriched beneficial bacteria Lactobacillus, Faecalibaculum, and Butyricimonas, enhanced carbon metabolism and fatty acid biosynthesis function, and increased short chain fatty acid (SCFAs) production. Taken together, our results indicate the great potential of S. cerevisiae QHNLD8L1 supplementation for the prevention and alleviation of UC.
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Affiliation(s)
- Qianjue Hu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Cui JJ, Huang ZY, Xie YH, Wu JB, Xu GH, Li CF, Zhang MM, Yi LT. Gut microbiota mediated inflammation, neuroendocrine and neurotrophic functions involved in the antidepressant-like effects of diosgenin in chronic restraint stress. J Affect Disord 2023; 321:242-252. [PMID: 36349650 DOI: 10.1016/j.jad.2022.10.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 10/20/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Diosgenin is a well-known steroid saponin possessing neuroprotective activities. However, it is unknown whether diosgenin could alleviate depression-like symptoms. METHODS The antidepressant-like effect of diosgenin was investigated in mice induced by chronic restraint stress. The effects of diosgenin on behaviors, inflammation, neuroendocrine, neurotrophic function, and gut microbiota were evaluated. RESULTS The results showed that diosgenin alleviated the depressive-like behaviors in mice. In addition, diosgenin was found to reduce serum concentrations of proinflammatory cytokines and the activity of the hypothalamic-pituitary-adrenal (HPA) axis. Besides, diosgenin could activate hippocampal brain-derived neurotrophic factor (BDNF)/TrkB/ERK/CREB signaling pathway and improve the expression of postsynaptic protein PSD95. Meanwhile, the neurogenesis which was inhibited by chronic restraint stress, was totally reversed by diosgenin. Moreover, diosgenin increased the abundance of phylum Firmicutes and the genus Lactobacillus in stressed mice. The results further showed that diosgenin caused a strong correlation between gut microbiota composition and inflammation, the HPA axis activity, or hippocampus neurotrophic function. LIMITATIONS Only male mice were used for evaluation in the present study, which limits the understanding of effects of diosgenin on the both sexes. In addition, the results only indicate microbiota at the phylum or genus mediate the regulation of neuroinflammation, neuroendocrine, and neurotrophic function, but does not elucidate how microbiota modulate the systems via their primary or secondary metabolites. CONCLUSIONS The present study shows that diosgenin exerts the antidepressant activity, which is associated with the enhancement of neurotrophic function and the inhibition of inflammatory and neuroendocrine activities via the regulation of gut microbiota.
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Affiliation(s)
- Jun-Ji Cui
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China
| | - Ze-Yun Huang
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China
| | - Yi-Hang Xie
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China
| | - Jun-Bin Wu
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China
| | - Guang-Hui Xu
- Xiamen Medicine Research Institute, Xiamen 361008, Fujian province, PR China
| | - Cheng-Fu Li
- Xiamen Hospital of Traditional Chinese Medicine, Xiamen 361009, Fujian province, PR China.
| | - Man-Man Zhang
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China
| | - Li-Tao Yi
- Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian province, PR China; Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen 361021, PR China; Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen 361021, PR China.
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Xu ML, Peng B, Bai J, Li L, Du Y, Wang ZQ, Li SS, Liu XX, Dong YY, Wu JZ, Xiong LX, Chen L, Li HB, Jiang HL. Diosgenin exerts an antihypertensive effect in spontaneously hypertensive rats via gut-brain communication. Food Funct 2022; 13:9532-9543. [PMID: 35997017 DOI: 10.1039/d2fo00946c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gut microbiota is well-established to regulate host blood pressure. Diosgenin is a natural steroid sapogenin with documented anti-inflammatory, antioxidant and antihypertensive properties. We aimed to investigate whether the antihypertensive effects of diosgenin are mediated by the microbiota-gut-brain axis in spontaneously hypertensive rats (SHR). 15-Week-old male Wistar Kyoto rats (WKY) and age-matched SHR were randomly distributed into three groups: WKY, SHR treated with a vehicle, and SHR treated with diosgenin (100 mg kg-1). Our results showed that diosgenin prevented elevated systolic blood pressure (SBP) and ameliorated cardiac hypertrophy in SHR. Moreover, the gut microbiota composition and intestinal integrity were improved. Furthermore, increased butyrate-producing bacteria and plasma butyrate and decreased plasma lipopolysaccharides were observed in SHR treated with diosgenin. These findings were associated with reduced microglial activation and neuroinflammation in the paraventricular nucleus. Our findings suggest that diosgenin attenuates hypertension by reshaping the gut microbiota and improving the gut-brain axis.
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Affiliation(s)
- Meng-Lu Xu
- Dialysis Department of Nephrology Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China. .,Department of Nephrology, the First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Bo Peng
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an 710061, China.
| | - Juan Bai
- Department of Anesthesiology, Center for Brian Science, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Lu Li
- Department of Nephrology, the First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Yan Du
- Department of Nephrology, the First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Zhi-Qiang Wang
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou 730050, China
| | - Sha-Sha Li
- Department of Nephrology, the First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Xiao-Xi Liu
- Department of Nephrology, the First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Yuan-Yuan Dong
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an 710061, China.
| | - Jun-Zhe Wu
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an 710061, China.
| | - Ling-Xiao Xiong
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an 710061, China.
| | - Lei Chen
- Dialysis Department of Nephrology Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Hong-Bao Li
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an 710061, China.
| | - Hong-Li Jiang
- Dialysis Department of Nephrology Hospital, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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