Johanna Smit

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The effects of intra-arterial injection of different doses of the selective histamine H3-receptor agonist R-alpha-methylhistamine and the selective histamine H3-receptor antagonist thioperamide on basal and electrically evoked noradrenaline overflow in the portal vein as well as on mean arterial pressure (MAP) and heart rate (HR) were investigated in(More)
The effects of intraportal infusions of different doses of neuropeptide Y, its selective neuropeptide Y Y1 receptor analogue, [Leu31,Pro34]neuropeptide Y, and the Y2-selective C-terminal fragment, neuropeptide Y-(18-36), on basal and electrically evoked noradrenaline overflow in the portal vein as well as on mean arterial pressure and heart rate were(More)
1. The duration of the facilitatory effect of adrenaline on the electrically evoked overflow of noradrenaline was studied in the portal vein of permanently adreno-demedullated freely moving rats. 2. Rats were infused with adrenaline (20 or 100 ng min-1) for 2 h. After an interval of 1 h, when plasma adrenaline had returned to undetectable levels, electrical(More)
The effect of adrenaline on the electrically evoked noradrenaline overflow in the portal vein of adrenal demedullated freely moving rats was studied. Adrenaline (100 ng/min) was infused for 2 h into the portal vein. After a 1-h interval when plasma adrenaline had returned to pre-infusion undetectable levels, the portal vein nervus plexus was electrically(More)
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