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A PTH/PTHrP receptor antagonist blocks the hypercalcemic response to estradiol-17b
Fuentes, J.; Guerreiro, P. M.; Modesto, Teresa; Rotllant, J.; Canario, Adelino V. M.; Power, DeborahEstradiol (E2) increases circulating calcium and phosphate levels in fish, thus acting as a hypercalcemic and hyperphosphatemic factor during periods of high calcium requirements, such as during vitellogenesis. Since parathyroid hormone (PTH)-related protein (PTHrP) has been shown to be calciotropic in fish, we hypothesized that the two hormones could be mediating the same process. Sea bream (Sparus auratus) ju...
Hormonal control of swimbladder sonic muscle dimorphism in the Lusitanian toadf...
Modesto, Teresa; Canario, Adelino V. M.The swimbladder and associated sonic muscle of the Lusitanian toadfish Halobatrachus didactylus increase in size throughout life and are, respectively, 25% and 30% larger in type I (nest-holder) males than females, which may generate sexual differences in sound production. Sexual dimorphism in swimbladder is also evident in the morphological features of sonic muscle fibers. During the breeding season, type I ma...
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