- Effects of chlorthalidone and metoprolol alone or in combination (logroton) on blood pressure, lipids, lipoproteins and circulating plasma ANF levels in essential hypertension. [Controlled Clinical Trial]
- IJInt J Clin Pharmacol Ther Toxicol 1991; 29(12):479-85
- The effects of chlorthalidone (mean dose 25 mg/day), metoprolol (mean dose 200 mg/day) or their combination (logroton) on blood pressure, lipids, lipoproteins and circulating atrial natriuretic facto...
The effects of chlorthalidone (mean dose 25 mg/day), metoprolol (mean dose 200 mg/day) or their combination (logroton) on blood pressure, lipids, lipoproteins and circulating atrial natriuretic factor (ANF) were evaluated in a controlled trial of 42-week duration in 33 hypertensive patients. There was a significant reduction in mean arterial pressure after chlorthalidone and metoprolol treatments. This effect was more pronounced with the chlorthalidone/metoprolol combination (logroton). There were no significant changes in mean ANF levels after any drug regimen, although a tendency to increase was observed after six weeks of treatment with metoprolol. Both chlorthalidone and metoprolol as monotherapy increased the total triglycerides. This effect was less pronounced with logroton. During metoprolol treatment, HDL cholesterol decreased significantly, whereas VLDL-C increased. When combined drug therapy was administered, the unfavorable effects on HDL-C were partially blunted and VLDL-C returned to baseline. LDL-cholesterol did not change significantly during any drug regimen nor did the ratio of LDL-C/HDL-C. Logroton significantly increased the VLDL apo B levels in patients who had received chlorthalidone as monotherapy but had no effect in patients already treated with metoprolol. Neither treatment had a significant influence on the ratio of LDL-C/B. There were no serious adverse events reported throughout the study. It is concluded that logroton may be an effective combination therapy that produces less adverse effects on lipid and lipoprotein metabolism than chlorthalidone or metoprolol monotherapies.
- [Secondary hyperlipoproteinemia induced by diuretic therapy (author's transl)]. [Controlled Clinical Trial]
- KWKlin Wochenschr 1980 Apr 01; 58(7):359-63
- In order to study the degree and pathogenic aspects of the secondary hyperlipoproteinemia in patients under diuretic therapy we measured serum lipids, lipoproteins and the apoproteins A1, A2 and B in...
In order to study the degree and pathogenic aspects of the secondary hyperlipoproteinemia in patients under diuretic therapy we measured serum lipids, lipoproteins and the apoproteins A1, A2 and B in 12 adults after a 4 weeks placebo period and 6 weeks of treatment with chlorthalidon. There was a significant increase in atherogenic low density lipoproteins (LDL), (18%, P less than 0.05) whereas the high density lipoprotein-cholesterol Apo A1 and A2 levels were not significantly altered. The same was true for the total serum triglyceride- and the very low density lipoprotein- and LDL-triglyceride levels. The activity of lipoprotein lipase and hepatic triglyceride lipase was slightly but not significantly increased. A delayed LDL-catabolism seems to be the most probable pathogenic mechanism underlying the Chlorthalidon-induced hyperlipoproteinemia.
- [The effect of diuretic therapy on serum lipoproteins: an undesirable effect?]. [Controlled Clinical Trial]
- SMSchweiz Med Wochenschr 1979 Jan 27; 109(4):104-8
- The effect of diuretics on serum lipids and lipoproteins was evaluated in 23 patients with essential hypertension treated with chlorthalidone for six weeks. Compared to placebo conditions, diuretic t...
The effect of diuretics on serum lipids and lipoproteins was evaluated in 23 patients with essential hypertension treated with chlorthalidone for six weeks. Compared to placebo conditions, diuretic therapy significantly increased serum beta (+8%, p less than 0.05) or low-density-lipoprotein (LP) cholesterol (+17%, p less than 0.025). Since alpha-LP or high-density-LP cholesterol was unchanged or tended to decrease slightly, there was also an increase in the beta/alpha-LP (+26%, p less than 0.025) or low/high-density-LP cholesterol (21%, p less than 0.025) ratio. Serum cholesterol (+4%), triglycerides (+3%), phospholipids and the Apo-LP A-I, A-II and B were not changed significantly. Blood pressure and plasma potassium were decreased (p less than 0.01), blood volume and serum insulin were not changed significantly, and serum glucose was increased mildly. Plasma renin, aldosterone and norepinephrine levels rose significantly (p less than 0.05), while circulating epinephrine was unaltered. Alterations in LP were not related to variations in blood pressure, blood volume, plasma electrolytes or serum glucose or insulin; and they did not correlate with chlorthalidone-induced increases in plasma renin, aldosterone or norepinephrine. Treatment with certain diuretics may have an adverse influence on lipoprotein metabolism.