Medical management of bleeding duodenal ulcers.
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This study investigated the effect of carbazochrome sodium sulphonate (AC-17) on the accumulation of tissue-type plasminogen activator antigen (t-PA:Ag) and plasminogen activator inhibitor-1 antigen (PAI-1:Ag) in culture medium of human umbilical vein endothelial cells (HUVEC). HUVEC were cultured in the presence of AC-17, and the concentration of t-PA:Ag and PAI-1:Ag in the medium was measured by an enzyme-linked immunoassay. AC-17, after 48 and 72 h incubation, significantly decreased the t-PA:Ag in the culture medium, while it had no significant effect on the PAI-1:Ag. The result of fibrin zymography was consistent with the result obtained by ELISA. It also revealed that all of the t-PA present in the culture medium formed complexes with PAI-1, indicating that AC-17 did not interfere with t-PA/PAI-1 complex formation. Furthermore, AC-17 did not inhibit the activities of t-PA and plasmin when measured by a fibrin plate method. These results suggest that AC-17 may modulate the fibrinolytic balance of blood through changing the function of endothelial cells, a new aspect of action of AC-17 as a haemostatic drug.
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Dermabrasion may be complicated by excessive bleeding during the procedure. Adrenosem salicylate has been used to control capillary oozing in various other surgical procedures. In a double-blind stidy of ten patients undergoing dermabrasion, Adrenosem salicylate was found to reduce capillary oozing during the procedure to a worthwhile degree. No untowards effects were encountered.
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The effects and side-effects in migraine prophylaxis of placebo, Divascan (1-isopropylnoradrenochrome--5--monosemicarbazone) and pizotifen were compared in a double-blind cross-over study. The dosage was for Divascan 15 mg a day and for pizotifen 3 mg a day. Data from the last 6 weeks of each test period of 8 weeks were used to assess the effect of the treatment. Thirty patients entered the trial. Data from 28 patients treated with placebo and Divascan and 27 patients treated with pizotifen were used for final evaluation. Pizotifen significantly reduced the number of migraine attacks, headache index and the consumption of ergotamine. Divascan also seemed to have effect. The consumption of ergotamine was reduced compared with placebo and there was a reduction, although not significant, of headache frequency and headache index. Pizotifen gave significantly larger reduction in headache frequency and headache index than Divascan and signficantly more patients stated a preference for pizotifen compared with Divascan. A good or very good effect was reported by 11 per cent of the patients on placebo, 39 per cent on Divascan and 70 per cent on pizotifen. Pizotifen had frequent side-effects, mainly drowsiness and weight gain, whereas Divascan in this respect did not differ from placebo. Physical examinations and laboratory investigations did not show any significant changes, apart from weight gain.
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