1. Laboratory of Cellular Physiology, Department of Physiology, Federal University of Rio Grande do Sul, Rua Sarmento Leite 500, ICBS, 2nd Floor, Suite 350, Porto Alegre, RS 90050-170, Brazil
2. Federal Institute of Education, Science and Technology ‘Farroupilha’, Rua Uruguai 1675, Santa Rosa, RS 98900-000, Brazil