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  • Title: [Urapidil effects on oxidative stress in hypertensive crises].
    Author: Golikov PP, Davydov BV, Marchenko VV, Nikolaeva NIu, Golikov AP, Riabinin VA, Semenova EV, Polumiskov VIu.
    Journal: Klin Med (Mosk); 2000; 78(7):42-5. PubMed ID: 10979642.
    Abstract:
    Urapidil effects on oxidant stress were studied in 36 patients with hypertension stage I-III running with crises. Acute hypertensive crisis was managed by intravenous injections of urapidil (20-50 mg) for 5 min. After that for a week they received urapidil monotherapy followed by combined treatment for another week (quinapril--25 mg/day or ramipril--5-10 mg/day in combination with hypothiaside--25 mg/day; lokren--20 mg/day or atenolol--50-100 mg/day and diltiazem--180-360 mg/day) to stabilize arterial pressure finally. Oxidant stress was estimated by lipid peroxidation (LPO) and state of antioxidant system (AOS). Catabolism and anabolism were evaluated by blood levels of hydrocortisone and insulin. LPO, AOS, the blood hormones were measured before management of hypertensive crisis, immediately after it and 1, 3, 7 and 14 days after. Before the crisis treatment LPO was found high. Urapidil administration reduced levels of hydrocortisone, dienic conjugates, lipid peroxidation, oxidant stress rate (OSR). Later, LPO and OSR slowly increased. It is concluded on validity of the antioxidants use in hypertensive patients with crises.
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