Publications by authors named "R Castrignano"

Osteoporosis is characterized by impairment of bone mass and deterioration of bone microscopic structure, resulting in increased bone fragility and susceptibility to fracture. Recent reports have indicated that reduced plasma levels of IGF-I are associated with osteoporosis in both males and females. Moreover, there is accumulating clinical evidence that treatment with GH or IGF-I has beneficial effects on bone mass and bone remodeling in men with idiopathic osteoporosis, in the elderly and in hypopituitary patients.

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Diabetic patients often develop hypertension, and the presence of both hypertension and diabetes doubles the risk of death from coronary heart disease (CHD). Moreover, the presence and importance of abnormalities such as high low-density lipoprotein (LDL) cholesterol and triglycerides levels as CHD risk factors in insulin-dependent diabetes mellitus type 1 have been downplayed, while increasing evidence suggests that the management of type 1 patients should include control of dyslipidemia and hyperglycemia and an effective antihypertensive treatment able also to reduce risk factors for coronary artery events. In this study we assessed the antihypertensive and metabolic effects of doxazosin in hypertensive patients with type 1 diabetes.

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We studied 60 women with postmenopausal bone loss randomly allocated to the following treatments: Group 1 (20 patients), no treatment; Group 2 (20 patients), clodronate 400 mg daily by mouth for 30 consecutive days, followed by 60 days of no treatment; Group 3 (20 patients) oral calcitriol 2 mcg by mouth for 5 days and oral clodronate 400 mg daily for additional 25 days, followed by 60 days of no treatment. The therapeutic cycles were repeated four times in the 12-month study period. In the 36 treated patients of Groups 2 and 3 who completed the study period we observed a progressive and significant increase in lumbar bone density both at 6 and 12 months of therapy, without significant differences between the two treatment protocols (+3.

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1. Vitamin D seems to play an essential role in the pathogenesis of idiopathic hypercalciuria at least in part via intestinal hyperabsorption of calcium. Hyperabsorption of calcium, in turn, might enhance the intestinal uptake of free oxalate, thus leading to hyperoxaluria.

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Primary hyperparathyroidism (PHP) might be characterized by either prevailing bone or renal stone patterns with different metabolic features. To explore the possibility of different hormonal patterns we studied 129 patients with PHP: 95 stone formers (SF) and 34 nonstone formers (NSF). Females prevailed over males in both groups.

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