Publications by authors named "R M Medina-Guerrero"
Transcriptomic analysis of immune-related genes in Pacific white snook (Centropomus viridis) gills infected with the monogenean parasite Rhabdosynochus viridisi.
Parasitol Int
February 2025
Article Synopsis
- Rhabdosynochus viridisi is a monogenean parasite that infects the gills of Pacific white snook, impacting the aquaculture industry, yet its effects on the fish's immune response are not well understood.
- The study used RNA sequencing to identify and analyze differentially expressed genes (DEGs) in infected fish, revealing 1430 DEGs, with a majority being downregulated, indicating potential inactivation of important immune pathways.
- Notably, while pro-inflammatory cytokines showed no change, certain immune-related genes linked to Th17-like immunity were upregulated, suggesting a specific immune response to the parasitic infection.
From January to May 2015, a sample of 50 individuals of the Pacific sierra Jordan and Starks, 1895 captured off Mazatlán (southeastern Gulf of California, Mexico) were reviewed for helminths. A total of 6, 255 parasitic worms belonging to 11 species (9 in adult stage and 2 larvae) were obtained. Trematoda was the best represented group with 6 species of Didymozoidae Monticelli, 1888 and 1 of Bucephalidae Poche, 1907.
View Article and Find Full Text PDFMonogeneans are parasitic flatworms that may be a threat for finfish aquaculture. In this study, the anthelmintic activity of two terpenes, geraniol and β-citronellol, was tested in vitro against ancyrocephalin and diplectanid monogeneans. Experiments were performed in both water and a culture medium.
View Article and Find Full Text PDFTerpenes are naturally produced compounds with a broad range of biological activities. Currently, there is limited information regarding the anthelminthic effect of terpenes against monogenean parasites of fish. The aim of this work was to evaluate the in vitro efficacy of two terpenes [α-terpinene and (+)-limonene oxide] against ancyrocephalid monogeneans found on farmed Nile tilapia ().
View Article and Find Full Text PDFArticle Synopsis
- The study investigated the antihelmintic activity of cobalt(II), copper(II), and zinc(II) coordination compounds of tinidazole on spotted rose snapper infested with dactylogyrid monogeneans.
- Various tinidazole coordination compounds were synthesized, structurally characterized, and tested in vitro and in vivo for effectiveness against the parasites.
- Results showed that the copper(II) compound, particularly [Cu(tnz)Br], exhibited the highest antihelmintic activity, demonstrating significant bioaccumulation in the fish's liver and achieving 95% effectiveness in baths at a concentration of 25mg/L.