Determinação da histamina no coração de ratos exercitados
DOI:
https://doi.org/10.33233/fb.v1i2.616Abstract
Este trabalho comparou os níveis de histamina (HA) no coração de ratos submetidos aos exercícios físicos agudo e prolongado de natação com os níveis de HA no coração de ratos sedentários (controles). A eficácia do treinamento foi confirmada pela histologia e a determinação dos níveis de HA foi realizada pelo método fluorimétrico. A respeito do exercício agudo, houve diminuição do nível de HA no coração de ratos sedentários 1,43 ± 0,3164 mg/g (N = 10) em comparação com o respectivo controle 2,15 ± 0,3505 mg/g (N = 08). Houve também diminuição dos níveis de HA no coração de animais treinados em repouso, 1,42 ± 0,6130 mg/g (N = 07), em comparação com o grupo controle 2,15 ± 0,3505 mg/g (N = 08). O critério de significância estatística foi p £ 0,05. Estes resultados sugerem que a HA pode participar da homeostasia microcirculatória de corações de ratos sedentários durante o exercício agudo de natação e de ratos treinados em repouso.
Palavras-chave: coração, natação, histamina.
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