The Presence of Atrial Natriuretic Peptide (ANP) in Spermatozoa of Bufo arenarum, and Effects of GnRH

Paz, Dante A.; Ruiz, Gonzalo Carlos; Casco, Víctor Hugo; Pisanó, A

doi:10.1006/gcen.1993.1101

Cited by 2 publications

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“…NP is a hormonal peptide produced in all vertebrates [20][21][22][23] and with BNP (brain natriuretic peptide) and CNP (C-type natriuretic peptide), it is one of the family of the natriuretic peptides that are involved in osmoregolatory phenomena, including vasodilator, diuretic and natriuretic functions [24]. In larval and adult amphibians, the presence of ANP and/or of its receptors has been demonstrated in the cardiac tissue [25][26][27][28][29] as well as in other tissues [1,18,19,[30][31][32][33][34][35][36][37][38][39]. The vertebrate kidney is an important target organ for ANP; in fact this hormone helps regulate the volume of extracellular fluid and the electrolyte balance by increasing the secretion of water and salt by directly acting on the kidney [23].…”

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confidence: 99%

The atrial natriuretic peptide (ANP) system in the pronephros and mesonephros of Bufo bufo larvae

Salamida

Vagnetti

2007

Open Life Sciences

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Abstract:In this study on the excretory apparatus of the Bufo bufo larvae, the ultrastructural features and the atrial natriuretic peptide (ANP)-system were examined using cytochemical and immunocytochemical methods. The early embryonic kidney, the pronephros, is replaced by a later stage, the mesonephros. The pronephros degenerates at the time of metamorphosis and the mesonephros becomes the functional kidney in the adult. Both these organs are targets for ANP, demonstrated by the presence of the specific receptors, indirectly highlighted by the cytochemical localization of the guanylate cyclase in the presence of exogenous atrial natriuretic peptide. This study concluded that the mesonephros produces ANP and thus clusters of cells containing ANP-like granules, positive to the anti-α ANP immunolocalization, were present along the mesonephric proximal tubule. The atrial natriuretic peptide system carries out an important osmoregulatory role in the excretory apparatus.

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