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Mammary growth and regression - regulation of milk synthesis


, : Mammary growth and regression - regulation of milk synthesis. Journal of Reproduction and Development 42(6): j143-j150

An account is given of the role of prolactin receptor gene expression in the regulation of milk synthesis, mammary gland involution and improvement in milk yield in dairy cattle.


Accession: 002889601

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Related references

Tucker, H.A., 2000: Symposium: hormonal regulation of milk synthesis. Hormones, mammary growth, and lactation: a 41-year perspective. Journal of Dairy Science 83(4): 4-84

Flint, D.J.; Gardner, M., 1994: Evidence that growth hormone stimulates milk synthesis by direct action on the mammary gland and that prolactin exerts effects on milk secretion by maintenance of mammary deoxyribonucleic acid content and tight junction status. Both PRL and GH play a role in maintaining lactation in the rat, although GH can only maintain pup weight gain at around 50% of the control value, whereas PRL can maintain weight gain close to 90% in the absence of GH. In this study we examined th...

Travers, M.T.; Barber, M.C.; Tonner, E.; Quarrie, L.; Wilde, C.J.; Flint, D.J., 1996: The role of prolactin and growth hormone in the regulation of casein gene expression and mammary cell survival: relationships to milk synthesis and secretion. We have compared involution of the rat mammary gland, induced by litter removal, where milk accumulation occurs, with involution induced in the presence of the suckling young by combined PRL and GH deficiency. Both treatments induced involutionary...

Wood, B.G.; Washburn, L.L.; Mukherjee, A.S.; Banerjee, M.R., 1975: Hormonal regulation of lobulo-alveolar growth, functional differentiation and regression of whole mouse mammary gland in organ culture. The entire second thoracic mammary glands of 4-wk-old BALB/c female mice primed with oestradiol + progesterone were cultivated in organ culture medium containing the 'growth-promoting' hormone combinations: insulin, prolactin, growth hor...

Davis, S.R.; Collier, R.J., 1985: Mammary blood flow and regulation of substrate supply for milk synthesis. The factors which influence intracellular availability of substrates of milk synthesis by ruminants are examined. It is concluded that although blood concn. of some substrates (acetate and tryptophan) may become critically limiting during brief fa...

Terada N.; Wakimoto H.; Oka T., 1988: Regulation of milk protein synthesis by progesterone in cultured mouse mammary gland. The effect of progesterone on the synthesis of milk proteins, casein and .alpha.-lactalbumin was investigated by culturing mammary explants from mid-pregnant mice in serum-free medium. The additon of progesterone at concentrations above 10 ng/ml i...

Tverskoi, G.B., 1966: Role of the efferent innervation of the goat mammary gland in the regulation of milk secretion. I. Effect of denervation of the mammary gland on secretion of milk, milk fat, casein and lactose at different stages of the lactation in which the operation was performed. 1 mammary gland in each of 17 goats in the 3rd-6th month of their 1st or 2nd lactation was denervated in a 2-stage operation and both glands were then milked at intervals until the end of lactation and the milk was analysed. The operation had no e...

Terada, N.; Oka, T., 1981: Regulation of milk protein synthesis by progesterone in cultured midpregnant mouse mammary gland. Addition of progesterone (PRG) at 0.03 mu M to organ cultures of mid-pregnant mouse mammary gland caused max. inhibition of casein and alpha -lactalbumin synthesis of 30-60 and 90%, resp. Addition of cortisol partially antagonized the effect of PR...

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Kano, K.; Oka, T., 1977: Hormonal regulation of milk protein synthesis at transcriptional and translational levels in cultured mouse mammary gland. Incubation of mammary explants from mid-pregnant mice with insulin (I), glucocorticoid (G) and prolactin (P) resulted in increases in the synthesis of mRNA, rRNA and tRNA and the formation of membrane-bound polysomes which synthesize milk proteins...