Literature DB >> 6123312

Effect of premature weaning on amino acid uptake by the mammary gland of lactating rats.

J R Viña, I R Puertes, J Viña.   

Abstract

1. Arteriovenous differences of amino acids across the lactating mammary gland were measured in normal rats and weaned for 4, 5 and 24h. 2. Uptake of amino acids by mammary glands of rats weaned for 5h or more was significantly lower than that of controls. This was not reversed by injection of prolactin. 3. By using 'unilaterally weaned' rats we showed that milk accumulation plays an important role in amino acid uptake by mammary gland. 4. gamma-Glutamyltransferase activity was significantly lower in 'weaned' glands than in 'normal' glands. This provides further support for the hypothesis of the function of the gamma-glutamyl cycle in the mammary gland in vivo.

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Year:  1981        PMID： 6123312      PMCID： PMC1163595          DOI： 10.1042/bj2000705

Source DB:  PubMed          Journal:  Biochem J        ISSN： 0264-6021            Impact factor:   3.857


  9 in total

1.  THE EFFECTS OF WEANING AND MILK ON MAMMARY FATTY ACID SYNTHESIS.

Authors:  H R LEVY
Journal:  Biochim Biophys Acta       Date:  1964-06-15

2.  Role of prolactin in amino acid uptake by the lactating mammary gland of the rat.

Authors:  J Viña; I R Puertes; G T Saez; J R Viña
Journal:  FEBS Lett       Date:  1981-04-20       Impact factor: 4.124

Review 3.  On the enzymology of amino acid transport.

Authors:  A Meister
Journal:  Science       Date:  1973-04-06       Impact factor: 47.728

4.  Interaction of gamma-glutamyl transpeptidase with amino acids, dipeptides, and derivatives and analogs of glutathione.

Authors:  S S Tate; A Meister
Journal:  J Biol Chem       Date:  1974-12-10       Impact factor: 5.157

5.  A cryptobiosis-specific 19S protein complex of Artemia salina gastrulae.

Authors:  E De Herdt; F De Voeght; J Clauwaert; M Kondo; H Slegers
Journal:  Biochem J       Date:  1981-01-15       Impact factor: 3.857

6.  The effects of engorgement with milk and of suckling on mammary blood flow in the rat.

Authors:  A Hanwell; J L Linzell
Journal:  J Physiol       Date:  1973-08       Impact factor: 5.182

7.  Influence of local vascularity on hormone receptors in mammary gland.

Authors:  B P Moore; I A Forsyth
Journal:  Nature       Date:  1980-03-06       Impact factor: 49.962

8.  Utilization of L-alanine and L-glutamine by lactating mammary gland of the rat. A role for L-alanine as a lipogenic precursor.

Authors:  J R Viña; D H Williamson
Journal:  Biochem J       Date:  1981-06-15       Impact factor: 3.857

9.  Effects of lactation on L-leucine metabolism in the rat. Studies in vivo and in vitro.

Authors:  J R Viña; D H Williamson
Journal:  Biochem J       Date:  1981-03-15       Impact factor: 3.857
  9 in total
  7 in total

1.  Amino acid metabolism and protein synthesis in lactating rats fed on a liquid diet.

Authors:  T Barber; J García de la Asunción; I R Puertes; J R Viña
Journal:  Biochem J       Date:  1990-08-15       Impact factor: 3.857

Review 2.  The functional and molecular entities underlying amino acid and peptide transport by the mammary gland under different physiological and pathological conditions.

Authors:  D B Shennan; C A R Boyd
Journal:  J Mammary Gland Biol Neoplasia       Date:  2013-10-25       Impact factor: 2.673

Review 3.  Morphological, hormonal, and molecular changes in different maternal tissues during lactation and post-lactation.

Authors:  Gustavo Canul-Medina; Cristina Fernandez-Mejia
Journal:  J Physiol Sci       Date:  2019-09-28       Impact factor: 2.781

4.  Inhibition of liver trans-sulphuration pathway by propargylglycine mimics gene expression changes found in the mammary gland of weaned lactating rats: role of glutathione.

Authors:  Rosa Zaragozá; Concha García; A Diana Rus; Federico V Pallardó; Teresa Barber; Luis Torres; Vicente J Miralles; Juan R Viña
Journal:  Biochem J       Date:  2003-08-01       Impact factor: 3.857

5.  Gamma-glutamyltransferase activity in mammary gland of pregnant rats and its regulation by ovarian hormones, prolactin and placental lactogen.

Authors:  L E Bussmann; R P Deis
Journal:  Biochem J       Date:  1984-10-01       Impact factor: 3.857

6.  Effect of starvation and refeeding on amino acid uptake by mammary gland of the lactating rat. Role of ketone bodies.

Authors:  J R Viña; I R Puertes; J B Montoro; J Viña
Journal:  Biochem J       Date:  1983-11-15       Impact factor: 3.857

7.  Hepatic uptake of amino acids at mid-lactation in the rat.

Authors:  J Casado; M Pastor-Anglada; X Remesar
Journal:  Biochem J       Date:  1987-07-01       Impact factor: 3.857
  7 in total

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