Ontology highlight
ABSTRACT:
PROVIDER: PRJNA860091 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR20308659_1.fastq.gz | Fastqsanger.gz | |||
| SRR20308659_2.fastq.gz | Fastqsanger.gz | |||
| SRR20308660_1.fastq.gz | Fastqsanger.gz | |||
| SRR20308660_2.fastq.gz | Fastqsanger.gz |
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Project description:Microbial communities of the traditional Lebanese fermented goat's milk product: labneh Ambaris
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Project description:Microbial dynamics of the traditional Lebanese fermented goat's milk product: labneh Ambaris
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Project description:Introduction: Fermented milk products are part of the staple diet for many Mediterranean populations. Most of these traditional foods are enriched with lactobacilli and other lactic acid bacteria and metabolites resulting from lactose fermentation. There is currently very little scientific knowledge on the influence of diet supplementation with fermented milk on the gut microbiota metabolism and composition. Methods: We integrated 16S rRNA gene-based taxonomic profiling with metaproteomic-based functional analysis to investigate the gut microbiota modifications in rats exposed for 8 weeks to diet supplementation with casu axedu, a traditional fermented milk produced within rural communities in Sardinia (Italy). Results and Discussion: Several taxa showed a significantly increased abundance at the end of the dietary treatment, including Phascolarctobacterium, Prevotella, Blautia glucerasea, and Akkermansia muciniphila, while Bifidobacterium, Lachnoclostridium, Odoribacter, Bacteroides dorei and Dubosiella newyorkensis were decreased compared to the control rats. Metaproteomic analysis highlighted a striking reshape of the Prevotella proteome profile in agreement with its blooming in casu axedu-fed animals, suggesting an increase of the glycolytic activity through the Embden Meyerhof Parnas Pathway over the Entner Doudoroff Pathway. Moreover, an increased production of succinate was observed, which in turn significantly boosted the abundance of Phascolartcobacterium and its production of propionate. Fermented milk consumption was also associated with promotion of microbial synthesis of branched chain essential amino acids L-valine and L-leucine. Finally, metaproteomic data indicated a reduction of bacterial virulence factors and host inflammatory markers, suggesting that the consumption of casu axedu can have beneficial effects on the gut mucosa health.
2025-09-29 | PXD054645 | Pride
Project description:Milk-derived extracellular vesicles (mEVs) have been proved to play a critical role in intercellular communication, mainly through the microRNAs (miRNAs) that they carry, to regulate biological functions of the target cells. Given miRNAs are evolutionarily conserved, EVs present in commercial milk may play a role in the physiology and health consumers. It is therefore essential to know the effects of technological treatments such as skimming and spray drying on the EV content of milk powders and on the cargo of bioactive molecules, in particular miRNAs, that they convey. Since goat’s milk or goat milk based formulas are considered as a healthy alternative for infants with cow’s milk sensitivities, including allergy, we undertook to analyze the EV content of skimmed and unskimmed goat's milk powders and to characterize their RNA content, in particular their miRNomes. mEVs were isolated using an optimized protocol based on Size Exclusion Chromatography (SEC) and compared regarding morphology, number and size by Transmission Electron Microscopy (TEM) and Nanoparticle Tracking Analysis (NTA). Their RNA and protein content were determined and their miRNomes established, using RNA sequencing. In this study we demonstrated that goat milk powders, skimmed or not upstream the spray drying treatment, contained many mEVs, ranging from 5.4 1011 to 2.5 1012 particles per mL of reconstituted milk, with an average size between 136.8 and 160.6 nm. We also demonstrated that mEVs carried significant amounts of RNA, including miRNAs. Using RT-qPCR, mRNAs encoding five of the major milk proteins were detected, suggesting that mEVs originated from mammary epithelial cells. We established the goat milk powder miRNome by identifying 351 miRNAs of which 233 are common to the 262 miRNAs previously profiled in raw goat milk. The 20 most abundant miRNAs (TOP 20) account for 80% of the total reads and the hierarchy of this TOP 20 miRNAs is somewhat overturned when comparing goat milk powder and raw goat milk. Surprisingly, whereas the comparison of raw from cow and goat milk confirmed the prevalence of miR-148a, miR-21-5p and miR-26a/miR-30a-5p, let-7a-5p and let-7f, which occupied ranks 1 and 2, respectively, in powders, were relegated to ranks 6 and 10 and 5 and 11 in raw goat and cow milk, respectively. Conversely to what was previously reported, we provide evidence that: i) EVs of typical morphology are present in goat milk powders; ii) mEVs survived the technological processes used to produce the powders; iii) their miRNA cargo is protected from degradation even though their miRNomes are not an exact mirror of miRNomes of EVs derived from fluid raw milk.
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Project description:Fermented goat milk (FGM) with Lactobacillus delbrueckii subsp. indicus CRL1447 and supplemented with different mixes of lactobacilli strains (Mix1: Limosilactobacillus fermentum CRL1446 + Lactiplantibacillus paraplantarum CRL1449 + Lactiplantibacillus paraplantarum CRL1472; Mix2: CRL1446 + CRL1449; Mix3: CRL1446 + CRL1472; and Mix4: CRL1449 + CRL1472) was administered to mice fed a high-fat diet. Proteomics data show that high-fat diet generally upregulates proteins involved in fatty acid oxidation and downregulates proteins taking part in lipid synthesis, whereas the administration of FGM+Mix3 positively modulates the hepatic proteomic profile.
2025-06-05 | PXD050536 | Pride
Project description:Sequencing and assembly of fermented milk products metagenomes
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Project description:Comparison of goat and cow milk-derived extracellular vesicle miRNomes (microRNA expression profiles) determined usiing RNA-sequencing (NGS).
2023-05-10 | GSE227559 | GEO