Soroprevalência de toxoplasmose e avaliação de genotoxicidade em indivíduos diagnosticados com esquizofrenia expostos a xenobióticos

• Autor(a) principal: Oliveira, Nícolas Gustavo Matias de
• Data de Publicação: 2018
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/8295
• topic: Esquizofrenia; Toxoplasmose; Medicamentos antipsicóticos; Xenobióticos; Genotoxicidade; Antipsychotic drugs; Schizophrenia; Toxoplasmosis; Xenobiotics; Genotoxicity; CIENCIAS BIOLOGICAS::GENETICA

Schizophrenia (EQZ) is a chronic mental illness that affects about 1% of the world population and is characterized by behavioral domains such as positive symptoms characterized by hallucinations and delusions and negative symptoms that involve apathy, anhedonia and social blunting. The cause of EQZ remains unknown, but it is known to be a disease whose etiology involves environmental and genetic factors. Several studies seek to identify factors that clarify the etiology of the disease. The agent that causes toxoplasmosis, Toxoplasma gondii, seems to be related to the development and progression of the disease, evidenced by studies that argue that T. gondii infection may be a triggering factor for psychosis in some individuals, since the parasite has a certain tropism by the central nervous system. Furthermore, studies have reported parasite infection as a factor related to genotoxicity, including toxoplasma infection in an animal model. Based on the foregoing, the present study aimed to evaluate the seropositivity to T. gondii (IgM or IgG) and the avidity of IgG in a group of individuals diagnosed with EQZ in the city of Goiânia and to evaluate the occurrence of genotoxicity in these, of genotoxicity with exposure to xenobiotics such as tobacco, alcohol, especially drugs, and / or T. gondii infection. Seropositivity was observed above 70% among individuals diagnosed with EQZ in relation to the controls, with avidity above 50%, indicating that individuals had contact with T. gondii at some time prior to the survey. Despite the genotoxic damage found, there was no significant difference in genotoxic damage among the infected individuals evaluated. The present study did not demonstrate that T. gondii may be a contributing factor to the occurrence of DNA damage, and the use of antipsychotic drugs, tobacco and alcohol, despite being a risk factor for genotoxicity, did not demonstrate an influence significant difference in the present study. However, it is necessary to carry out other analyzes and investigate parameters such as the time of drug use and exposure to other xenobiotics. In order to know better the life habits of individuals, it may help to provide more information about this relationship between T. gondii and EQZ.