ArticlePloS one2024
Aging-induced dysbiosis worsens sepsis severity but is attenuated by probiotics in D-galactose-administered mice with cecal ligation and puncture model.
Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- L. AGILIS ALLEVIATES SALPINGITIS IN HENS Lactobacillus agilis alleviates salpingitis through the TLR4/MyD88/NF-κB pathway and gut microbiota interactions in aged laying hens.Poultry science · 2026Article
- Chronic alcohol consumption compromises gut barrier integrity and promotes endotoxemia: Implications for sepsis susceptibility in immunocompromised hosts.Animal models and experimental medicine · 2026Article
- Article
- Preliminary Evaluation of the Gut Microbiota Modulatory Potential of Malaysian Kefir Water in Ageing Mice.Foods (Basel, Switzerland) · 2025Article
- Prominent fibroblast growth factor 21 with less abundant tumor-associated macrophages in hepatic mass of the conditional mgmt-deleted mice using LysM-Cre system.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- Cyclic GMP-AMP Synthase (cGAS) Deletion Promotes Less Prominent Inflammatory Macrophages and Sepsis Severity in Catheter-Induced Infection and LPS Injection Models.International journal of molecular sciences · 2025Article
- Accelerating and protective effects toward cancer growth in cGAS and FcgRIIb deficient mice, respectively, an impact of macrophage polarization.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- Article
- Gut microbiota and sepsis-associated encephalopathy: pathogenesis and precision therapies.Frontiers in neuroscience · 2025Review
- The progress of the microbe-gut-brain axis in sepsis-associated encephalopathy.Frontiers in cellular and infection microbiology · 2025Review
- Phage cocktail amikacin combination as a potential therapy for bacteremia associated with carbapenemase producing colistin resistant Klebsiella pneumoniae.Scientific reports · 2024Article
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12 authors.
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Abstract
introductionDespite the well-established effects of aging on brain function and gut dysbiosis (an imbalance in gut microbiota), the influence of aging on sepsis-associated encephalopathy (SAE) and the role of probiotics in this context remain less understood.
methodsC57BL/6J mice (8-week-old) were subcutaneously administered with 8 weeks of D-galactose (D-gal) or phosphate buffer solution (PBS) for aging and non-aging models, respectively, with or without 8 weeks of oral Lacticaseibacillus rhamnosus GG (LGG). Additionally, the impact of the condition media from LGG (LCM) was tested in macrophages (RAW 264.7 cells), microglia (BV-2 cells), and hippocampal cells (HT-22 cells).
resultFecal microbiome analysis demonstrated D-gal-induced dysbiosis (reduced Firmicutes and Desulfobacterota with increased Bacteroidota and Verrucomicrobiota), which LGG partially neutralized the dysbiosis. D-gal also worsens cecal ligation and puncture (CLP) sepsis severity when compared with PBS-CLP mice, as indicated by serum creatinine (Scr) and alanine transaminase (ALT), but not mortality, neurological characteristics (SHIRPA score), and serum cytokines (TNF-α and IL-6). Additionally, D-gal-induced aging was supported by fibrosis in the liver, kidney, and lung; however, CLP sepsis did not worsen fibrosis. Interestingly, LGG attenuated all parameters (mortality, Scr, ALT, SHIRPA, and cytokines) in non-aging sepsis (PBS-CLP) while improving all these parameters, except for mortality and serum IL-6, in aging sepsis (D-gal CLP). For the in vitro test using lipopolysaccharide (LPS) stimulation, LCM attenuated inflammation in some parameters on RAW264.7 cells but not BV-2 and HT-22 cells, implying a direct anti-inflammatory effect of LGG on macrophages, but not in cells from the brain.
conclusionD-gal induced fecal dysbiosis and worsened sepsis severity as determined by Scr and ALT, and LGG could alleviate most of the selected parameters of sepsis, including SAE. However, the impact of LGG on SAE was not a direct delivery of beneficial molecules from the gut to the brain but partly due to the attenuation of systemic inflammation through the modulation of macrophages.
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