Browsing by Subject "Teleost"

Now showing 1 - 4 of 4
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    Dataset used for Report of "Proteomic changes induced by hepcidin 1 injection in brain and skin of gilthead seabream (Sparus aurata)"
    (2025) Laura García-Navarro; Serna Duque, John Alberto; Marín Parra, Claudia; M. Ángeles Esteban; Biología Celular e Histología; M. Ángeles Esteban
    The present study investigated the effects of hepcidin 1 (Hamp1) on the proteome of brain and skin of gilthead seabream (Sparus aurata). Hepcidin 1, a host defense peptide with antimicrobial and immunomodulatory functions, was inyected intraperitoneally at a dose of 25 μM. Proteomic analyses of brain and skin samples were performed using HPLC-MS/MS at 4 and 10 days post-injection. Data processing and analysis revealed significant alterations in protein expression profiles in both tissues. In the brain, hepcidin 1 injection upregulated proteins involved in DNA repair, myelin sheath structure, and extracellular matrix remodeling at 4 days, while at 10 days, changes were observed in proteins involved in endoplasmic reticulum calcium channels, Golgi apparatus glycosylation, and cytoskeletal dynamics. Skin samples exhibited increased expression of proteins related to endoplasmic reticulum stress response, cell adhesion, and vesicular trafficking at 4 days. At 10 days, skin proteome alterations indicated a metabolic shift towards enhanced glycolysis, oxidative stress adaptation, and cytoskeletal remodeling. These findings suggest that hepcidin 1 induces tissue-specific and time-dependent proteomic changes in gilthead seabream, potentially modulating immune responses, energy metabolism, and cellular adaptation processes. Further research is needed to elucidate the functional implications of these proteomic alterations and their potential applications in aquaculture health management.
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    Effects of dihydroquercetin obtained from deodar (Cedrus deodara) on immune status of gilthead seabream (Sparus aurata L.)
    (2015) Shafik Abdelhady Elazab Awad, E.; Esteban Abad, María de los Ángeles; Biología Celular e Histología
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    Occurrence of Anisakis and Hysterothylacium larvae in commercial fish from Balearic Sea (Western Mediterranean Sea)9
    (Springer, 2018-10-16) Barcala, Elena; Ramilo, Andrea; Picó, Gabriela; Abollo, Elvira; Pascual, Santiago; Muñoz, Pilar; Ortega Hernández, Nieves; Sanidad Animal
    This study investigates the occurrence of anisakids and raphidascarids in commercial fish from Balearic Sea (Western Mediterranean). A total of 335 fish including 19 black anglerfish (Lophius budegassa), 33 white anglerfish (L. piscatorius), 129 European hake (Merluccius merluccius), 30 red mullet (Mullus barbatus), and 124 striped mullet (M. surmuletus) were examined using enzymatic digestion. A total of 948 nematode larvae were isolated (prevalence 52.53%) being the highest prevalence observed in striped mullet. Forty-six larvae were identified using molecular analyses which included PCR and sequencing of the 629-bp fragment of mitochondrial cox2 gene region. Anisakis pegreffii (80.43%), A. physeteris (8.69%), Hysterothylacium fabri (6.52%), and A. simplex (4.35%) were detected based on molecular analyses of larvae. Total nematode prevalence was positively correlated with weight, length, condition factor, and maturity stage of the host and also with fishing ground depth. Statistical differences between total nematode prevalence and geographical sector of capture were observed when fishing hauls were grouped according to the abundance of sperm whales or common bottlenose dolphins. The results also corroborate that fishing water depth may play an important role in anisakid and raphidascarid parasitization.1SPS� m
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    The European eel may tolerate multiple infections at a low biological cost
    (Cambridge University Press, 2015-02-25) Mayo-Hernandez, Elvira; Serrano, Emmanuel; Peñalver, Jose; Ruiz De Ybañez, Rocio; Muñoz, Pilar; García Ayala, Alfonsa; Sanidad Animal
    Most animals are concurrently infected with multiple parasites, and interactions among them may influence both disease dynamics and host fitness. However, the sublethal costs of parasite infections are difficult to measure and the effects of con comitant infections with multiple parasite species on individual physiology and fitness are poorly described for wild hosts. To understand the costs of co-infection, we investigated the relationships among 189 European eel (Anguilla anguilla) from Mar Menor, parasites (richness and intensity) and eel’s ‘health status’ (fluctuant asymmetry, splenic somatic index and the scaled mass index) by partial least squares regression. We found a positive relationship with 44% of the health status variance explained by parasites. Contracaecum sp. (Nematoda: Anisakidae) was the strongest predictor vari able (44·72%) followed by Bucephalus anguillae (Platyhelminthes: Bucephalidae), (29·26%), considered the two most rel evant parasites in the analysis. Subsequently, 15·67 and 12·01% of the response variables block were explained by parasite richness and Deropristis inflata (Platyhelminthes: Deropristiidae), respectively. Thus, the presence of multiple parasitic exposures with little effect on condition, strongly suggests that eels from Mar Menor tolerate multiparasitism