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UNLABELLED Serotonin and serotonin receptors of class II (5HT2-R) are thought to be involved in the neural mechanisms which regulate the LH release associated with photoperiodic changes in sheep. A specific premammillary hypothalamic area displaying a significant binding of 3H-ketanserin, a potent 5HT2-R antagonist, was previously identified. The aim of the(More)
The isolated perfused rat kidney allows a simultaneous kinetic study of both the renal metabolism and the urinary excretion of cortisol and its metabolites in the rat. In this system, cortisol was completely metabolized within 120 minutes. The main renal metabolites of cortisol (cortisone, 20 reduced cortisol and 20 reduced cortisone) were found in the(More)
The insulin receptor (IR) is a membrane-bound glycoprotein composed of alpha and beta subunits derived from a common precursor. This processing is observed for both subtypes A and B of the IR and its physiological importance is poorly understood. In order to investigate the functional consequences of the absence of IR precursor cleavage, using site-directed(More)
Enzymatically inactive human renin from chorionic cells in culture is significantly distinct in polyacrylamide gel electrophoresis (pH 8.17, 0 degree C) from active human kidney renin. The inactive renin is larger and more basic than the active renin; their molecular weights derived from gel electrophoretic retardation coefficients relate as 47.5/35.3 kDa,(More)
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