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  • Frontiers Media SA  (2)
  • Liu, Xiujie  (2)
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  • Frontiers Media SA  (2)
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  • 1
    In: Frontiers in Nutrition, Frontiers Media SA, Vol. 8 ( 2022-1-26)
    Abstract: Estrogen deficiency-induced depression is closely associated with an imbalance in intestinal microbiota and inflammation. Prevotella histicola ( P. histicola ), an emerging probiotic, apparently improves inflammatory responses. This study aims to verify the antidepressant-like effects of P. histicola and clarify its potential mechanisms. Methods Mice were treated with P. histicola and cohousing after ovariectomy (OVX). The changes in depression-like behaviors among mice were examined by behavioral tasks, and alterations in the microbiota were detected through 16S rRNA sequencing. Changes in neuronal injury, protein synthesis, inflammatory factors, intestinal permeability, and nerve proliferation were observed by H & amp;E, Nissl staining, qRT-PCR, western blotting, and immunofluorescence. Results P. histicola significantly reduces depression-like behaviors and neuronal damage induced by estrogen deficiency. Additionally, P. histicola significantly increases the abundance of intestinal flora, especially Lactobacillus and Akkermansia . Meanwhile, the cohoused mice also had a better emotional state and neutral structure compared with OVX mice. P. histicola was also found to upregulate tight junction proteins ZO-1, occludin, claudin-1, and MUC2 in the ileum and colon and reduce the levels of inflammatory factors VCAM, MCP-1, IL-6, IL-8, and TNF-α, mainly in the ileum, colon, and decrease the expression of COX-2, TLR4, Myd88, JNK, MCP-1, IL-6, IL-8, and TNF-α in the hippocampus. Moreover, significant downregulation of apoptosis (caspase-3 and caspase-8) and upregulation of neurotrophic factors (BDNF and Ki-67) were observed after P. histicola treatment. Conclusion Our data show that P. histicola significantly mitigates depression of OVX mice through improvement in intestinal microbiota to repair intestinal leakage and inhibit central inflammation to promote the expression of BDNF for hippocampal neurogenesis. P. histicola may be therapeutically beneficial for PMD.
    Type of Medium: Online Resource
    ISSN: 2296-861X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2776676-7
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  • 2
    Online Resource
    Online Resource
    Frontiers Media SA ; 2021
    In:  Frontiers in Nutrition Vol. 8 ( 2021-12-15)
    In: Frontiers in Nutrition, Frontiers Media SA, Vol. 8 ( 2021-12-15)
    Abstract: Background and aims: Metabolic syndrome (MetS), accompanied with significant intestinal dysbiosis, causes a great public health burden to human society. Here, we carried out a meta-analysis to qualify randomized controlled trials (RCTs) and to systematically evaluate the effect of microbial therapy on MetS. Methods and results: Forty-two RCTs were eligible for this meta-analysis after searching the PubMed, Cochrane, and Embase databases. Pooled estimates demonstrated that treatment with microbial therapy significantly reduced the waist circumference (WC) (SMD = −0.26, 95% CI −0.49, −0.03), fasting blood glucose (FBG) (SMD = −0.35, 95% CI −0.52, −0.18), total cholesterol (TC) (SMD = −0.36, 95% CI −0.55, −0.17), low-density lipoprotein cholesterol (LDL-C) (SMD = −0.42, 95% CI −0.61, −0.22), and triacylglycerol (TG)(SMD = −0.38, 95% CI −0.55, −0.20), but increased the high-density lipoprotein cholesterol (HDL-C) (SMD = 0.28, 95% CI.03, 0.52). Sensitivity analysis indicated that after eliminating one study utilizing Bifidobacteriumlactis , results became statistically significant in diastolic blood pressure (DBP) (SMD = −0.24, 95% CI −0.41, −0.07) and in Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) (SMD = −0.28, 95% CI −0.54, −0.03), while the body mass index (BMI) showed significant difference after eliminating one study utilizing oat bran (SMD = −0.16, 95% CI −0.31, −0.01). There was still no significant effect in systolic blood pressure (SBP) and in hemoglobin A1c (HbA1c%). Conclusion: In patients with MetS, the conditioning with microbial therapy notably improves FBG, TC, TG, HDL-C, LDL-C, WC, BMI (except for the study using oat bran), HOMA-IR, and DBP (except for the Study using Bifidobacteriumlactis ), however, with no effect in SBP and in HbA1c%.
    Type of Medium: Online Resource
    ISSN: 2296-861X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2776676-7
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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