Browsing by Author "Carpentier, Robert"

Now showing items 1-2 of 2

    • Effect of harmaline on pacemaker activity of guinea pig sinus node 
      Carpentier, Robert; Narvarte, Javier; Sanhueza, Sylvia (1977)
      Transmembrane potentials of pacemaker fibers of the sinus node were recorded to analyze the effect of harmaline (HME) on cardiac automaticity. A short exposure to HME 2.1 × 10-5 or 8.3 × 10-5 M produced a long lasting ...
    • The effect of harmaline on force of contraction of the rat isolated atrium 
      Chamorro, Hernan; Narvarte, Javier; Diaz, Gabriela; Carpentier, Robert (1975)
      In rat isolated right atria, beating spontaneously at 30°C, harmaline 8.3 × 10-5 M slowed atrial rate and enhanced force of contraction. The velocity of development of tension (dT/dt) increased and time to peak tension was ...