Comparative Endocrinology of Prolactin

Parental fanning behavior and prolactin cell activity in the male three-spined stickleback Gasterosteus aculeatus L.

During the period that sexually mature male three-spined sticklebacks display parental fanning behavior, the rate of synthesis and release of the prolactin cells in the hypophysis, as estimated with quantitative electron microscopy, is enhanced considerably. This finding points to involvement of endogenous prolactin in the regulation of parental fanning behavior in this species.

The effects of changes in external sodium, calcium, and magnesium concentrations on prolactin cells, skin, and plasma electrolytes of Gasterosteus aculeatus.

Reproductive endocrinology of tropical seabirds: sex-specific patterns in LH, steroids, and prolactin secretion in relation to parental care.

Plasma levels of luteinizing hormone, prolactin, testosterone, and progesterone were measured throughout breeding in masked boobies, red-footed boobies, and red-tailed tropicbirds at Europa and Tromelin Islands (Indian Ocean). LH secretion showed a dampened pattern in the three species, particularly in tropicbirds. Such specific differences may be related to the less elaborate courtship display...

Effects of vasoactive intestinal peptide on prolactin secretion in three species of passerine birds.

Previous work on domesticated species has indicated that vasoactive intestinal peptide (VIP) is an important prolactin-releasing factor in these birds, but no comparative work in passerine birds has been reported. This study showed that iv injections of VIP (50-100 microg/kg body mass) result in a dramatic, but transitory, rise in plasma prolactin in Mexican jays (Aphelocoma ultramarina). Signi...

The effect of ambient calcium on prolactin cell activity and plasma electrolytes in Sarotherodon mossambicus (Tilapia mossambica).

The relationship between prolactin cell activity, environmental calcium, and plasma calcium in the teleost Gasterosteus aculeatus. Observations on stanniectomized fish.