N-acetylcysteine inhibits Mancozeb-induced impairments to the normal development of zebrafish embryos

Publication date: July–August 2018Source: Neurotoxicology and Teratology, Volume 68Author(s): Dennis Guilherme da Costa-Silva, Luana Paganotto Leandro, Pratícia de Brum Vieira, Nelson Rodrigues de Carvalho, Andressa Rubim Lopes, Lucia Emanueli Schimith, Mauro Eugênio Medina Nunes, Renata Siqueira de Mello, Illana Kemmerich Martins, Adriano Alves de Paula, Andrés Delgado Cañedo, José Cláudio Fonseca Moreira, Thais Posser, Jeferson Luis FrancoAbstractMancozeb (MZ), a manganese/zinc-containing ethylene-bis-dithiocarbamate (EBCD) fungicide has been claimed to present low acute toxicity and short environmental persistence, however, its effects on embryogenesis in non-target organisms is unclear. Here, we used zebrafish embryos (5 hpf) to assess the potential embryotoxic effects induced by MZ (up to 72 hpf) as well as the role of reactive oxygen species (ROS) in this process by pre-treatment with a classical antioxidant (N-acetylcysteine, NAC). Markers of reactive oxygen species production (ROS), glutathione (GSH) levels and glutathione S-transferase (GST) activity were measured along with genotoxicity (comet assay), cell death (Acridine Orange) and behavioral parameters (spontaneous movement, touch stimulation and swimming response), in order to determine potential mechanisms of embryotoxicity. According to results, MZ was able to induce morphological abnormalities such as body axis distortion, DNA damage, cell death, increased ROS generation and changes in behavioral ...
Source: Neurotoxicology and Teratology - Category: Toxicology Source Type: research