Assessment of Some Heavy Metals and Their Relationship with Oxidative Stress and Immunological Parameters in Aquatic Animal Species.

Heavy metal accumulation changes the immune system and leads to oxidative damage in aquatic animals. The present study evaluated the correlation between heavy metal accumulation, with immunological and oxidative stress parameters, in various species in the aquatic environment of Western Iran. Fresh samples included fish (trout and carp) and shrimp obtained from Sanandaj aquaculture.

Seasonal heavy metal accumulations in the bivalve Barbatia decussate and their relationships with water quality and the metal-induced biochemical biomarkers.

Seasonal tissue concentrations of heavy metals, antioxidant enzymes, immunological components, and water quality parameters were investigated during 1 year in the ark clam, Barbatia decussate, from the coast of Lengeh port, located in the north of the Persian Gulf, Iran. The tissue accumulation of the heavy metals (Cd, Pb, Hg) significantly increased accumulations in late autumn and winter (P < 0.01).

Evaluation of potential immunotoxic effects of iron oxide nanoparticles (IONPs) on antioxidant capacity, immune responses and tissue bioaccumulation in common carp (Cyprinus carpio).

Nanoparticles can be toxic and put human and animals' life at risk. The present work was carried out to evaluate the possible immunosuppressive effects of water borne iron oxide nanoparticles (IONPs) and the FeCl on immune components of common carp (Cyprinus carpio). Fish were exposed to a series of chronic levels of 25%, 50%, and 75% of IONPs LC 96 h concentration (referred to as control, NP1, NP2, and NP3 respectively) or FeCl (same concentrations as IONPs referred to as S1, S2, and S3 respectively) for 21 days.

Behavioral and immunotoxic effects of Prograf® (tacrolimus) in the male Siamese fighting fish.

Siamese fighting fish (Betta splendens) has been extensively exploited in the behavioral and physiological toxicology studies of drugs. Tacrolimus is an immunosuppressant drug largely used in liver and renal transplantations. Here we found that a 7-day exposure of male B.