Isotope dilution models for partitioning amino acid uptake by the liver, mammary gland and hindlimb tissues of ruminants.

2009 ◽  
pp. 353-360
Author(s):  
L. A. Crompton ◽  
J. France ◽  
B. J. Bequette ◽  
J. A. Maas ◽  
M. D. Hanigan ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Amino Acid ◽  
Isotope Dilution ◽  
Amino Acid Uptake ◽  
Acid Uptake

Gamma-Glutamyl-Amino Acids as Signals for the Hormonal Regulation of Amino Acid Uptake by the Mammary Gland of the Lactating Rat

Neonatology ◽  
1985 ◽  
Vol 48 (4) ◽  
pp. 250-256 ◽  
Author(s):  
Juan R. Viña ◽  
Inmaculada R. Puertes ◽  
Juan B. Montoro ◽  
Guillermo T. Saez ◽  
José Viña
Keyword(s):  
Amino Acids ◽  
Mammary Gland ◽  
Amino Acid ◽  
Hormonal Regulation ◽  
Amino Acid Uptake ◽  
Acid Uptake ◽  
Gamma Glutamyl

Blood flow and net amino acid uptake by the lactating mammary gland: effect of starvation

1985 ◽  
Vol 13 (5) ◽  
pp. 876-877 ◽  
Author(s):  
JUAN R. VIÑA ◽  
ARGIMIRO RODRIGUEZ ◽  
JUAN B. MONTORO ◽  
ANTONIO IRADI ◽  
INMACULADA R. PUERTES ◽  
...  
Keyword(s):  
Blood Flow ◽  
Mammary Gland ◽  
Amino Acid ◽  
Amino Acid Uptake ◽  
Acid Uptake ◽  
Lactating Mammary Gland

Plasma amino acid uptake by the mammary gland of the lactating sow.

1997 ◽  
Vol 75 (5) ◽  
pp. 1266 ◽  
Author(s):  
N L Trottier ◽  
C F Shipley ◽  
R A Easter
Keyword(s):  
Mammary Gland ◽  
Amino Acid ◽  
Amino Acid Uptake ◽  
Plasma Amino Acid ◽  
Acid Uptake ◽  
Lactating Sow

Control of amino acid uptake by the lactating mammary gland of the rat

1981 ◽  
Vol 9 (5) ◽  
pp. 392-392 ◽  
Author(s):  
JUAN R. VIÑA ◽  
JUAN B. MONTORO ◽  
INMACULADA R. PUERTES ◽  
JOSE VIÑA
Keyword(s):  
Mammary Gland ◽  
Amino Acid ◽  
Amino Acid Uptake ◽  
Acid Uptake ◽  
Lactating Mammary Gland

scholarly journals Effects of hormones on protein and amino acid metabolism in mammary-gland explants of mice

1976 ◽  
Vol 158 (2) ◽  
pp. 355-359 ◽  
Author(s):  
L D Anderson ◽  
J A Rillema
Keyword(s):  
Mammary Gland ◽  
Amino Acid ◽  
Protein Biosynthesis ◽  
Insulin Response ◽  
Exposure Period ◽  
Amino Acid Uptake ◽  
Isobutyric Acid ◽  
Leucine Incorporation ◽  
Acid Uptake ◽  
Pregnant Mice

The effects of insulin, cortisol and prolactin on amino acid uptake and protein biosynthesis were determined in mammary-gland explants from mid-pregnant mice. Insulin stimulated [3H]leucine incorporation into protein within 15 min of adding insulin to the incubation medium. Insulin also had a rapid stimulatory effect on the rate of aminoiso[14C]butyric acid uptake, but it had no effect on the intracellular accumulation of [3H]leucine. Cortisol inhibited the rate of [3H]leucine incorporation into protein during the initial 4h of incubation, but it had no effect at subsequent times. [3H]Leucine uptake was unaffected by cortisol, but amino[14C]isobutyric acid uptake was inhibited after a 4h exposure period to this hormone. Prolactin stimulated the rate of [3H]leucine incorporation into protein when tissues were exposed to this hormone for 4h or more; up to 4h, however, no effect of prolactin was detected. At all times tested, prolactin had no effect on the uptake of either amino[14C]isobutyric acid or [3H]leucine. Incubation with actinomycin D abolished the prolactin stimulation of protein biosynthesis, but this antibiotic did not affect the insulin response. A distinct difference in the mechanism of action of these hormones on protein biosynthesis in the mammary gland is thus apparent.

Effects of increased supply of essential amino acids on the metabolism of the isolated perfused guinea-pig mammary gland

1979 ◽  
Vol 46 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Andrew R. Peters ◽  
Stephen Alexandrov ◽  
T. Ben Mepham
Keyword(s):  
Amino Acids ◽  
Protein Synthesis ◽  
Mammary Gland ◽  
Amino Acid ◽  
Guinea Pig ◽  
Amino Acid Uptake ◽  
Essential Amino Acids ◽  
Acid Uptake ◽  
Isoleucine Leucine ◽  
Group 1

SUMMARYThe effects of high rates of infusion of essential amino acids on amino acid uptake by the isolated perfused guinea-pig mammary gland were studied. Infusion of methionine, tyrosine, phenylalanine, histidine and tryptophan (designated group 1) resulted in significant increases in the uptakes of tyrosine, phenylalanine and histidine. Methionine, tryptophan and other essential amino acids were not significantly affected. Infusion of threonine, valine, isoleucine, leucine, lysine and arginine (designated group 2) resulted in significant increases in uptake of all these amino acids. Group 1 amino acid uptake was not significantly affected. Infusion of all the essential amino acids (i.e. groups 1 and 2 together) resulted in significant increases in all their uptakes. Using as index ‘the predicted rate of protein synthesis’, infusion of group 1 and 2 together led to an apparent 27% increase in protein synthesis. The above results are discussed in relation to the control of milk protein synthesis by limiting essential amino acids.

Are the γ-glutamyl-amino acids signals for the amino acid uptake by lactating mammary gland?

1986 ◽  
Vol 14 (2) ◽  
pp. 311-312 ◽  
Author(s):  
JUAN R. VIÑA ◽  
INMACULADA R. PUERTES ◽  
JUAN B. MONTORO ◽  
ARGIMIRO RODRIGUEZ ◽  
JOSÉ VIÑA
Keyword(s):  
Amino Acids ◽  
Mammary Gland ◽  
Amino Acid ◽  
Amino Acid Uptake ◽  
Acid Uptake ◽  
Lactating Mammary Gland

scholarly journals The Influence of Insulin and Amino Acid Supply on Amino Acid Uptake by the Lactating Bovine Mammary Gland

1991 ◽  
Vol 74 (10) ◽  
pp. 3412-3420 ◽  
Author(s):  
J.A. Metcalf ◽  
J.D. Sutton ◽  
J.E. Cockburn ◽  
D.J. Napper ◽  
D.E. Beever
Keyword(s):  
Mammary Gland ◽  
Amino Acid ◽  
Amino Acid Uptake ◽  
Acid Uptake ◽  
Bovine Mammary Gland
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