These results indicate that simvastatin in commonly used doses has an in vitro and in vivo anti-inflammatory effect in CKD patients, and may play an important role in counteracting the mechanisms involved on the pathogenesis of cardiovascular disease.

A 35-year-old woman was admitted to the Nephrology and Dialysis Unit of Pisa University for hypertension, hypokalaemia, renal impairment, proteinuria and hyperglycaemia. plasma renin activity (PRA) and plasma aldosterone were elevated, but Doppler ultrasound and angio-computed tomography (CT) of renal arteries were normal. Abdomen CT revealed only a left adrenal mass, and measurement of catecholamines suggested the diagnosis of pheochromocytoma. Biochemical findings suggestive of hyperparathyroidism were also detected, but a multiple endocrine disorder was excluded by genetic analysis. Pathology examination confirmed the pheochromocytoma and immunohistochemistry also showed positivity for parathyroid hormone. After surgery, disappearance of the symptoms and normalization of all haemodynamic and humoral parameters was observed. This is a rare case of pheochromocytoma responsible for secondary hyperaldosteronism, hyperparathyroidism, proteinuric renal disease and diabetes mellitus.

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