Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Joan M. L. Stephen"'
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Adaptation of the rat to a low-protein diet: the effect of a reduced protein intake on the pattern of incorporation of L-[14C]lysine
Autor: Joan M. L. Stephen, J. C Waterlow
Publikováno v: British Journal of Nutrition. 20:461-484
1. Rats were chronically depleted of protein by being kept on a 6% casein diet for 5–8 weeks. Control rats were fed on a normal diet. Both groups were injected intraperitoneally with L-[U-14C]lysine. Some rats from each group were then put on a pro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f2f184af59ffc6cbaa6d59c7f28341
https://doi.org/10.1079/bjn19660047
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5
Adaptive enzyme changes in liver and muscle of rats during protein depletion and refeeding
Autor: Joan M. L. Stephen
Publikováno v: British Journal of Nutrition. 22:153-163
1. Young rats were kept on a 6% casein diet for 4–7 weeks and then either killed or returned to a stock diet. Control rats were given a stock diet.2. Argininosuccinate lyase (EC 4.3.2.1, L-argininosuccinate arginine-lyase) was assayed in liver, and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7eb3f6f0425e7bb3fe66bb6777e3493
https://doi.org/10.1079/bjn19680022
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6
NUTRITIONAL REQUIREMENTS The later years
Autor: Joan M. L. Stephen
Publikováno v: Nutrition & Food Science. 73:17-19
In a recent article in Nature, it was asserted that we do not know how much food man requires. Although this statement was clearly intended to be provocative, it is probably more true for the elderly than for any other group of people.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fff7620a5d7eb2b5cd1032e1fa105d0e
https://doi.org/10.1108/eb058576
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7
Alkaline Phosphatase in Normal Infants
Autor: Joan M. L. Stephen, Pearl Stephenson
Alkaline phosphatase was measured in plasma from children receiving vitamin D supplements in day nurseries in the London area, and from children exposed to sunlight in the West Indies. The distribution of values showed that there was no precise upper
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ef281d13412e961f5044cf424880d5f
https://europepmc.org/articles/PMC1647480/
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9
Use of carbon-14-labelled arginine to measure the catabolic rate of serum and liver proteins and the extent of amino-acid recycling
Autor: J. C. Waterlow, Joan M. L. Stephen
Publikováno v: Nature. 211(5052)
THERE is evidence that in both man1 and rat2,3 protein deficiency causes a decrease in the catabolic rate of plasma albumin, which may plausibly be regarded as an adaptive reaction. To demonstrate this, it is necessary either to use a label which is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09ea3935522d8538cfbb70566464298a
https://pubmed.ncbi.nlm.nih.gov/5968311
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10
Enzymes and the assessment of protein nutriton
Autor: Joan M. L. Stephen, J. C. Waterlow
Publikováno v: The Proceedings of the Nutrition Society. 28(2)
This symposium is concerned with the assessment of protein nutritional status in man. The question we have to examine is whether measurements of enzyme activity are, or may be in the future, of any value for this purpose. There are several concepts w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1881542d51cd128f4e3a88d19c8e0d3d
https://pubmed.ncbi.nlm.nih.gov/4901035
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