MacFadyen, R J Aldosterone blockade reduces vascular collagen turnover, improves heart rate variability and reduces early morning rise in heart rate in heart failure patients. [electronic resource] - Cardiovascular research Jul 1997 - 30-4 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0008-6363 Standard No.: 10.1016/s0008-6363(97)00091-6 doi Subjects--Topical Terms: AgedAngiotensin-Converting Enzyme Inhibitors--therapeutic useBiomarkers--bloodCircadian RhythmDiuretics--therapeutic useDouble-Blind MethodDrug Therapy, CombinationElectrocardiography, AmbulatoryFemaleFibrosisHeart Failure--bloodHeart Rate--drug effectsHumansMaleMineralocorticoid Receptor Antagonists--therapeutic useMyocardium--pathologyPeptide Fragments--bloodProcollagen--bloodSpironolactone--therapeutic use