Key result
Pertussis toxin pretreatment in spontaneously hypertensive rats significantly decreased blood pressure and reduced sympathetic vasoconstriction.
Why the study?
Does Gi-protein inactivation by pertussis toxin reduce blood pressure and sympathetic vasoconstriction in spontaneously hypertensive rats?
Population
Conscious spontaneously hypertensive rats (SHR) and Wistar-Kyoto (WKY) rats
Comparison
Pertussis toxin 10 microg/kg i.v. 48 hours… vs No PTX pretreatment
Design
Preclinical
Follow-up
48 hours
Authors
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Gi-protein inactivation may lower BP in rat hypertension models; hypothesis-generating and leaves open human translation.
Does Gi-protein inactivation by pertussis toxin reduce blood pressure and sympathetic vasoconstriction in spontaneously hypertensive rats?
In spontaneously hypertensive rats, the enhanced contribution of the sympathetic nervous system to hypertension maintenance is mediated by a Gi-protein-coupled pathway controlling calcium influx through L-type calcium channels.
Pintérová et al. (2010) studied High blood pressure. Pertussis toxin (PTX) pretreatment vs. No PTX pretreatment was evaluated on Blood pressure and sympathetic vasoconstriction. Pertussis toxin pretreatment in spontaneously hypertensive rats significantly decreased blood pressure and reduced sympathetic vasoconstriction.
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