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OBJECTIVE The purpose of this preliminary study was to devise a new surgical procedure for minimally invasive aortic valve implantation with a transluminal technique. METHODS The new collapsible heart valve was prepared by mounting a porcine aortic valve, taken from a freshly slaughtered pig, into a self-expandable nitinol stent by means of a suture(More)
Immunoelectron microscopy was performed on live, cultured early postnatal mouse cerebellar cells to identify and ultrastructurally characterize those cells which express nervous system antigen-1 (NS-1) and beta-D-galactocerebroside (GalCer) on their surfaces. These two antigens are expressed on oligodendroglia with similar ultrastructural features. These(More)
BACKGROUND Saliva is a useful sample as a source of hormones for the diagnosis of different diseases, particularly in pediatric patients and aged individuals, because saliva offers a noninvasive and stress-free alternative to serum collection. The aim of this study was to validate a salivary insulin method and to check its clinical application in pediatric(More)
In 8 subjects, the oral protein supply is modified in periods of 3 days each. With increasing protein intake, a decrease of the serum uric acid levels results as well as a significant increase in uric acid excretion and uric acid clearance. On the basis of the data obtained, it may be assumed that protein has a uricosuric action.