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Efeitos da vareniclina no tecido pulmonar em modelo animal / Effects of varenicline on lung tissue in the animal model
Ermis, Hilal; Parlakpinar, Hakan; Elbe, Hulya; Vardi, Nigar; Polat, Alaaddin; Gulbas, Gazi.
  • Ermis, Hilal; Inonu University. Faculty of Medicine. Department of Pulmonary Medicine. Malatya. TR
  • Parlakpinar, Hakan; Inonu University. Faculty of Medicine. Department of Pharmacology. Malatya. TR
  • Elbe, Hulya; Sitki Kocman University. Faculty of Medicine. Department of Embryology and Histology. Muğla. TR
  • Vardi, Nigar; Inonu University. Faculty of Medicine. Department of Embryology and Histology. Malatya. TR
  • Polat, Alaaddin; Inonu University. Faculty of Medicine. Department of Physiology. Malatya. TR
  • Gulbas, Gazi; Inonu University. Faculty of Medicine. Department of Pulmonary Medicine. Malatya. TR
J. bras. pneumol ; 46(2): e20180406, 2020. tab, graf
Article in Portuguese | LILACS | ID: biblio-1090800
RESUMO
RESUMO Objetivo O objetivo deste estudo foi investigar os efeitos agudos e crônicos da vareniclina no tecido pulmonar em um estudo experimental. Métodos Um total de 34 ratos foi alocado aleatoriamente em grupos de estudo (vareniclina) e controle. Assim, os ratos foram divididos em dois grupos (i) grupo controle e (ii) grupo vareniclina. A seguir, os ratos de cada grupo foram, por sua vez, subdivididos igualmente em agudos (C1; V1) e crônicos (C2; V2), e todos os ratos dos grupos agudos e crônicos foram sacrificados sob anestesia no 45.º dia, para o grupo agudo [C1 (n=5) e V1 (n=12)], e no 90.º dia, para o grupo crônico [C2 (n=5) e V2 (n=12)], respectivamente. Em seguida, foram realizadas análises bioquímicas e histopatológicas. Resultados Trinta e quatro ratos completaram o estudo. Destes ratos, 24 estavam no grupo vareniclina e 10 no grupo controle. Na exposição crônica à vareniclina, os níveis de oxidante composto por malondialdeído (MDA) e mieloperoxidase (MPO) aumentaram, e os níveis de superóxido dismutase (SOD), catalase (CAT), glutationa (GSH) e glutationa peroxidase (GPx), nomeados como antioxidantes, diminuiram significativamente quando comparados com o grupo controle. Os níveis de MDA e MPO também foram significativamente mais elevados e os níveis de SOD, CAT, GPx e GSH foram significativamente mais baixos no grupo vareniclina crônico, quando comparado ao grupo vareniclina agudo. Estes achados também foram confirmados por observações histopatológicas. Conclusões Este é o primeiro estudo que avaliou os efeitos pulmonares da vareniclina experimentalmente em um modelo animal. Observamos que o tratamento crônico da vareniclina causa inflamação e lesão pulmonar.
ABSTRACT
ABSTRACT Objective This study aimed to investigate acute and chronic effects of varenicline on lung tissue in an experimental study. Methods A total of 34 rats were randomly allocated into study (varenicline) and control groups. The rats were divided into two groups (i) control group, (ii) varenicline group. Then, the rats in the each group were sub-divided equally in turn as acute (C1; V1) and chronic (C2; V2) ; all rats of acute and chronic groups were sacrificed under the anesthesia on the 45th day for acute group [C1 (n=5) and V1 (n=12)] and the 90th day for chronic group [C2 (n=5) and V2 (n=12)], respectively. Thus, biochemical and histopathological analysis were carried out. Results Thirty four rats completed the study, 24 were in varenicline group and 10 were in control group. In chronic exposure to varenicline, oxidant levels comprising of malondialdehyde (MDA), and myeloperoxidase (MPO) increased and superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and glutathione peroxidase (GPx) levels, named as antioxidants, decreased significantly when compared to the control group. MDA and MPO levels were also significantly higher and SOD, CAT, GPx, GSH levels were also significantly lower in chronic varenicline group when compared to acute varenicline group. These findings were also supported by histopathological observations. Conclusion This is the first study, which evaluated pulmonary effects of varenicline experimentally on an animal model. It was observed that chronic varenicline treatments cause inflammation and lung cell injury.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Superoxide Dismutase / Varenicline / Lung Type of study: Prognostic study Limits: Animals Language: Portuguese Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2020 Type: Article Affiliation country: Turkey Institution/Affiliation country: Inonu University/TR / Sitki Kocman University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Superoxide Dismutase / Varenicline / Lung Type of study: Prognostic study Limits: Animals Language: Portuguese Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2020 Type: Article Affiliation country: Turkey Institution/Affiliation country: Inonu University/TR / Sitki Kocman University/TR