Protocol for feeding strategy and proteomics analysis of zebrafish Danio rerio using S-trap and iTRAQ techniques.

Yeast serves as a functional alternative and sustainable protein source in aquaculture. This protocol outlines feeding strategy and intestinal proteome analysis of zebrafish (Danio rerio), using S-trap for digestion, iTRAQ, and mass spectrometry for protein quantification. Additionally, it details the analysis of chemical components in feed and functional assessments via Kyoto Encyclopedia of Genes and Genomes (KEGG), Eukaryotic Orthologous Group (KOG), and Gene Ontology (GO).

Clearance of p21 highly expressing senescent cells accelerates cutaneous wound healing.

While senescent cells have detrimental roles in several contexts, they are highly heterogeneous. p16 highly expressing senescent cells have been reported to exert beneficial functions in wound healing. Here we use Xenium spatial transcriptomics to identify a distinct p21 highly expressing senescent population induced on wounding, with a pro-inflammatory profile.

Computational identification of potential tau tubulin kinase 1 (TTBK1) inhibitors: a structural analog approach.

Unlabelled: Abnormal deposition or aggregation of protein alpha-synuclein and tau in the brain leads to neurodegenerative disorders. Excessive hyperphosphorylation of tau protein and aggregations destroys the microtubule structure resulting in neurofibrillary tangles in neurons and affecting cytoskeleton structure, mitochondrial axonal transport, and loss of synapses in neuronal cells. Tau tubulin kinase 1 (TTBK1), a specific neuronal kinase is a potential therapeutic target for neurodegenerative disorders as it is involved in hyperphosphorylation and aggregation of tau protein.

Comparative Nutritional and Histological Analysis of Malabar Red Snapper () and Asian Seabass ().

This study offers a comprehensive morpho-histological analysis of the gastrointestinal tract (GIT) of the Malabar red snapper. A comparison of its GIT morphology with that of the Asian seabass reveals similarities and differences between the two species. Additionally, the moisture content, crude protein, and ash in the fillets of Malabar red snapper and Asian seabass were slightly different, with Malabar red snapper exhibiting higher levels of essential fatty acids.

yeast as a functional protein source: Modulation of immunoregulatory pathways in the intestinal proteome of zebrafish ().

Yeasts contain bioactive components that can enhance fish immune robustness and disease resistance. Our study focused on analyzing intestinal immunoregulatory pathways in zebrafish () using iTRAQ and 2D LC-MS/MS to quantify intestinal proteins. Zebrafish were fed either control diet (C) or diet supplemented with autolyzed (ACJ).