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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 44 (1993), S. 121-125 
    ISSN: 1432-1041
    Keywords: Hypertension ; Ketanserin ; platelet aggregation ; serotonin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The 5-HT2-receptor antagonist ketanserin (20–40 mg b.i.d.) was administered to 62 patients of both sexes with uncomplicated primary hypertension. After 4 weeks of treatment about 50% of the patients had reached the target diastolic blood pressure of 90 mm Hg or below. Interindividual variability was large. In a retrospective analysis the variability could not be explained by sex or the dose of ketanserin. There was a weak association between age and systolic blood pressure response (r=0,24; P=0.06), which could be entirely accounted for by the higher base line blood pressure in the elderly patients. In one group of patients (n=12), the ex vivo aggregation to serotonin (10−6 M) was studied during treatment with placebo and ketanserin. Ketanserin completely inhibited 5-HT-induced aggregation in all patients. There was a close correlation between the area under the 5-HT-induced platelet aggregation curve during placebo and the subsequent reduction in diastolic blood pressure after 4 weeks of treatment with ketanserin. The present data suggest that the blood pressure response to ketanserin can be predicted from the ex vivo sensitivity of platelets to serotonin. By implication, they also support a role for serotonergic mechanisms in hypertension.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 50 (1996), S. 259-264 
    ISSN: 1432-1041
    Keywords: Key words Moexipril ; Hypertension ; Hydrochloro-thiazide; elderly patients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: To compare the antihypertensive efficacy of moexipril, a new angiotensin-converting enzyme (ACE) inhibitor, to treatment with hydrochlorothiazide (HCTZ). Patients: Two hundred and one non-hospitalized male and female patients between 65 and 80 years of age with essential hypertension. Methods: This was a multicentre, placebo-controlled, double-blind study with a parallel group design. Subjects with a sitting diastolic blood pressure (DBP) ≥ 95 mmHg were randomized to monotherapy with placebo, moexipril 7.5 mg o.d., moexipril 15 mg o.d. or HCTZ 25 mg o.d. for 8 weeks. Results: Throughout the study period treatment with moexipril and HCTZ resulted in significant reductions of DBP compared with placebo, but there were no significant differences between the active treatment groups. At end point the adjusted mean reductions were 10.5, 8.7 and 10.1 mmHg in the HCTZ, moexipril 7.5 mg and moexipril 15 mg groups, respectively, compared to 3.9 mmHg in the placebo group. Treatment with moexipril was associated with two cases of first dose hypotension and two cases of moderate and reversible increases in serum creatinine levels. Otherwise, both dosages of moexipril were well tolerated and the overall percentages of patients who had adverse experiences were smaller than in the placebo group. Conclusion: Moexipril is well tolerated and is at least as effective as HCTZ in elderly patients with essential hypertension.
    Type of Medium: Electronic Resource
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