dynorphins and Hyperventilation

dynorphins has been researched along with Hyperventilation* in 1 studies

Trials

1 trial(s) available for dynorphins and Hyperventilation

ArticleYear
beta-Endorphin modulation of pressor response to hyperventilation in hypertensive patients.
    Peptides, 2002, Volume: 23, Issue:5

    After hyperventilation, systolic and diastolic blood pressure (BP) significantly decreased in 14 hypertensive patients (group 1), did not change in 9 (group 2) and increased in 8 (group 3). Basal BP, norepinephrine and dynorphin B levels were higher in group 1 than in groups 2 and 3. The decrease in BP after hyperventilation was associated with a decrease in plasma norepinephrine, Met-enkephalin and dynorphin B and an increase in beta-endorphin. Naloxone abolished the hyperventilation-induced BP and norepinephrine decreases. Our findings indicate that hyperventilation may select hypertensive patients with different sympatho-adrenergic activity and that the increase in beta-endorphin reduces BP response to hyperventilation in patients with high sympatho-adrenergic tone.

    Topics: Aged; beta-Endorphin; Blood Pressure; Cross-Over Studies; Dynorphins; Enkephalin, Methionine; Female; Heart Rate; Humans; Hypertension; Hyperventilation; Male; Middle Aged; Naloxone; Norepinephrine; Time Factors

2002