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Galectin () is a member of a family of β-galactoside-binding lectin. The members of this family play important roles in the recognition of carbohydrate ligands and in various other biological processes. In this study, we identified the gene encoding in () and analyzed its expression in various tissues after pathogen challenge. Alignment analysis revealed that the two galactose-binding lectin domains of the deduced protein were highly conserved among all the teleosts. Phylogenetic analysis revealed that is most closely related to the gene of gilthead sea bream. was ubiquitously expressed in all tissues analyzed but was predominantly expressed in the spleen, head kidney, and intestine. After challenges with major microbial pathogens (, , or red sea bream iridovirus) of red sea bream, mRNA expression was significantly regulated in most immune-related tissues. These results suggested that not only plays an important role in the immune system of red sea bream but is also a possible inflammatory marker for pathogenic diseases.
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http://dx.doi.org/10.3390/ani11010139 | DOI Listing |
Biology (Basel)
July 2025
Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), University of Cadiz, Campus de Excelencia Internacional del Mar (CEIMAR), 11519 Puerto Real, Cadiz, Spain.
The aquaculture industry has experienced considerable growth in recent decades, stimulating research into sustainable and functional feed formulations, mainly related to using high-quality, safe, and environmentally friendly feed ingredients. The employment of immunomodulatory additives is a promising strategy to enhance fish health and performance. In this study, the effects of the ghrelin analog GHRP-6 peptide included in the diet (500 µg/kg of feed) on the endocrine and immune responses of following Incomplete Freund's adjuvant (IFA) treatment were assessed.
View Article and Find Full Text PDFAnimals (Basel)
August 2025
Department of Bioscience, Biotechnologies and Environment, University of Bari Aldo Moro, 70126 Bari, Italy.
This study investigated the flesh quality, shelf life, and sensory freshness of sea bream () reared in the REMEDIA Life IMTA system, which incorporates bioremediator organisms-sponges, polychaetes, bivalves, and macroalgae-supported by artificial vertical collectors to enhance the settlement of sessile macroinvertebrates and improve environmental quality. A total of 96 fish (18 months old) were analysed, 48 farmed within the IMTA system and 48 in the conventional offshore system. Both groups received the same commercial feed.
View Article and Find Full Text PDFParasite
August 2025
School of Marine Science, Ningbo University, Ningbo 315832, Zhejiang Province, PR China - Key Laboratory of Aquacultural Biotechnology, (Ningbo University), Ministry of Education, Ningbo 315832, Zhejiang Province, PR China - Key Laboratory of Green Mariculture (Co-construction by Ministry and Provin
A novel myxosporean species was identified. The species formed spherical to ellipsoidal pseudocysts within the alimentary tract wall of a yellowfin seabream Acanthopagrus latus fished in the East China Sea. Histological examination confirmed that pseudocysts were localized within the submucosal layer of the stomach wall.
View Article and Find Full Text PDFAquac Nutr
July 2025
School of Veterinary Medicine, Aristotle University of Thessaloniki GR-54124, Thessaloniki, Greece.
This study examined the growth performance, cellular signaling, and gut microbiome of gilthead sea bream () fed four diets using low-trophic-level ingredients for 65 days. Control (C) diet contained fish meal (FM) as the main protein source and fish oil (FO) as a lipid source. In the 0%FMFO diet all FM and FO present in the C diet was replaced with a combination of microalgae, insect meal (IM), and tunicate meal (TM).
View Article and Find Full Text PDFFood Chem
July 2025
Department of Stem Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Minami-ku, Hiroshima 734-8553, Japan; Laboratory for Comprehensive Bioimaging, RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatomachi-minami, Chuo-ku, Kobe 650-0047, Ja
Recent advances in fish freshness evaluation rely on a combination of optical imaging and artificial intelligence due to their applicability to non-invasive and non-destructive measurements. Using trout salmon, red sea bream, and Japanese amberjack, we investigated the feasibility of using autofluorescence spectroscopy, influenced by biochemical reactions, to assess the freshness of fish filets. Spectral analyses using principal component analysis and curve-fitting revealed considerable differences among species.
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