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- W2041132447 abstract "Clinical research was conducted into the possible interrelationships between prostaglandin (PG) F2alpha and the human sympathetic nervous system. The study also permitted comparison of the relative sensitivity of 2 indicators of sympatho-adrenal activity: 1) the determination of circulating catecholamines, epinephrine and norepinephrine; and 2) analysis of plasma dopamine-8-hydroxylase activity. Intravenous PGF2alpha infusion was administered to college students 12-18 weeks pregnant to produce abortion; the results were compared to results from nonpregnant controls. Circulating norepinephrine but not plasma epinephrine or dopamine-8-hydroxylase levels were increased in response to the PG. There was no correlation between plasma epinephrine and plasma norepinephrine levels. Plasma dopamine-8-hydroxylase activity was found not to be significantly changed by pregnancy, administration of the analgesic and antiemetic, or the PG infusion. In fact, central venous dopamine-8-hydroxylase activity did not differ significantly from that of arterial blood. The PG did not affect cardiac output or maximal expiratory flow rate. It is suggested that the nausea and diarrhea accompanying PGF2alpha infusion may put stress on the sympathetic nervous activity causing the observed increase in plasma norepinephrine concentration. Since no changes in blood pressure, heart rate, central venous pressure, or cardiac output were observed, it is unlikely that PGF2alpha causes even slight impairment of sympathetic nervous system activity." @default.
- W2041132447 created "2016-06-24" @default.
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- W2041132447 date "1972-09-01" @default.
- W2041132447 modified "2023-10-17" @default.
- W2041132447 title "Changes in human plasma catecholamines and dopamine-beta-hydroxylase produced by prostaglandin F2α" @default.
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- W2041132447 doi "https://doi.org/10.1016/s0090-6980(72)80027-3" @default.
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