172029
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB56457 | ENA |
REPOSITORIES: ENA
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Project description:Numerous studies have shown that resistance to oxidative stress is crucial to stay healthy and to reduce the adverse effects of aging. Accordingly, nutritional interventions using antioxidant food-grade compounds or food products are currently an interesting option to help improve health and quality of life in the elderly. Live lactic acid bacteria (LAB) administered in food, such as probiotics, may be good antioxidant candidates. Nevertheless, information about LAB-induced oxidative stress protection is scarce. To identify and characterize new potential antioxidant probiotic strains, we have developed a new functional screening method using the nematode Caenorhabditis elegans as host. C. elegans were fed on different LAB strains (78 in total) and nematode viability was assessed after oxidative stress (3mM and 5mM H2O2). One strain, identified as Lactobacillus rhamnosus CNCM I-3690, protected worms by increasing their viability by 30% and, also, increased average worm lifespan by 20%. We performed a transcriptomic analysis of C. elegans fed with this strain and showed that increased lifespan is correlated with differential expression of the DAF-16/insulin-like pathway, which is highly conserved in humans. Gene expression in C. elegans wild-type strain (N2) was analyzed in worm populations fed with E. coli OP50 (control condition) or the corresponding LAB (Lactobacillus rhamnosus CNCM I-3690 or Lactobacillus rhamnosus CNCM I-4317) . Three days and ten days feeding period was analyzed.
2012-12-31 | E-GEOD-42192 | biostudies-arrayexpress
Project description:Lacticaseibacillus rhamnosus strain:CNCM I-4036 Genome sequencing
| PRJNA268449 | ENA
Project description:Lacticaseibacillus rhamnosus GG (LGG) is a widely consumed probiotic whose potential beneficial effects in humans have been examined in over 250 clinical trials. However, the mechanisms by which LGG modulates host gut physiology remains unknown. R. gnavus is a pathobiont that is strongly associated with inflammatory bowel diseases. Germ free mice were mono-associated with L. rhamonosus (LGG) or R. gnavus (RG) for 21 days, ileum bulk RNA-seq were performed to compare the transcriptomic profiles of LGG or RG associated mice with the transcriptome of germ-free mouse ileum.
2023-10-01 | GSE237101 | GEO
Project description:The human microbiota is believed to influence health. Microbiome dysbiosis may be linked to neurological conditions like Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS) and Huntington’s disease (HD). We report the ability of a probiotic bacterial strain in halting neurodegeneration phenotypes. We show that Lacticaseibacillus rhamnosus HA-114 is neuroprotective in C. elegans models of ALS and HD. Our results show that neuroprotection from L. rhamnosus HA-114 is unique from other L. rhamnosus strains, and resides in its fatty acid content. Neuroprotection by L. rhamnosus HA-114 requires acdh-1/ACADSB, kat-1/ACAT1 and elo-6/ELOVL3/6, which are key fatty acid metabolism and mitochondrial b-oxidation genes. Our data suggest that disrupted lipid metabolism contributes to neurodegeneration and that dietary intervention with L. rhamnosus HA-114 restores lipid homeostasis and energy balance through mitochondrial b-oxidation. L. rhamnosus HA-114 is suitable for human consumption opening the possibility of modifying disease progression by dietary intervention.
2021-12-05 | GSE189988 | GEO
Project description:Lacticaseibacillus rhamnosus strain:CNCM-I-3698 Genome sequencing and assembly
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Project description:Identification of proteins contained in extracellular vesicles of Lacticaseibacillus rhamnosus PCM 489. Dataset is related to publication http://dx.doi.org/10.20517/evcna.2024.49. This work was financially supported by the National Science Centre, Poland (no. 2021/43/D/NZ6/01464).
2024-11-07 | PXD048876 | Pride
Project description:To investigate the effect of Lacticaseibacillus rhamnosus 0030 (LR) on nucleus accumbens gene expression in a mouse model of established diet-induced obesity, we treated high-fat diet fed male mice with 1x10^8 CFU LR using daily peroral gavage. Vehicle (here: PBS)-treated mice fed with a low-fat diet or high-fat diet served as controls. We then performed gene expression profiling analysis using data obtained from RNA-seq of those three groups (LFD vehicle, HFD vehicle, HFD LR).
2023-04-28 | GSE228484 | GEO
Project description:Lacticaseibacillus rhamnosus HN067
| PRJNA859120 | ENA