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  • Title: Urinary catecholamines, plasma renin activity and blood pressure in newborns: effects of narcotic withdrawal.
    Author: Dube SK, Jhaveri RC, Rosenfeld W, Evans HE, Khan F, Spergel G.
    Journal: Dev Pharmacol Ther; 1981; 3(2):83-7. PubMed ID: 6274596.
    Abstract:
    Blood pressure and plasma renin activity were studied in 13 infants of drug-dependent mothers (heroin and/or methadone) and 20 control newborns for a period of 21 days. Urinary excretion of epinephrine and norepinephrine were also measured at 24 and 48 h of age. The systolic blood pressure was found to be significantly elevated in newborns of drug-dependent mothers compared with controls (p less than 0.01), but diastolic blood pressure levels were similar. Plasma renin activity was significantly elevated (p less than 0.001) at 48-72 h and urinary epinephrine levels were significantly lower (p less than 0.05) at 24-48 h of age in the drug group, and norepinephrine levels were equivalent. Systolic hypertension and elevated plasma renin activity in these newborns of dependent mothers may be due to increased beta-adrenergic receptor sensitivity.
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