Results 271 to 280 of about 9,777,305 (324)
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Determination of the Biological Availability of Methionine and Cystine
Nature, 1961THERE is no adequate method to determine the biological availability of the sulphur-containing amino-acids in the chick, but Schweigert and Guthneck1 have described a technique for the rat A method has therefore been developed for the bioassay of methionine using White Leghorn chicks at 11–18 days of age: it can readily be modified to determine ...
J. T. Morgan, D. Guttridge, D. K. Lewis
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Biological availability of metals to marine organisms
Marine Pollution Bulletin, 1985Pour etre biodisponibles, les metaux doivent etre dissous, sous forme ionique, soit dans la mer, soit dans l'organisme les ...
M. Waldichuk
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Biological Availability of Nutrients in Feeds: Availability of Major Mineral Ions
Journal of Animal Science, 1972H. T. Peeler
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Biological availability of isoleucine
Archives of Biochemistry and Biophysics, 1957Abstract Biological availability of isoleucine in eight different proteins was determined using a blood meal diet low in isoleucine. Isoleucine in zein was available to the extent of 30%; in casein and gelatin, around 60–70%; and in fibrin, beef, egg albumin, and Drackett, over 90% of the isoleucine was available to the rat.
A. E. Harper +3 more
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Biological availability of selenosugars in rats
Chemico-Biological Interactions, 2007The biological availability and metabolism of two selenosugars orally administered to rats were investigated. Two other selenium species, selenite and trimethylselenonium ion (TMSe) were included in the study as positive and negative controls, respectively.
Dijana Jureša +4 more
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On biological availability dependent bone remodeling
Computer Methods in Biomechanics and Biomedical Engineering, 2020Modeling the evolution of bone density is relevant for understanding, simulation and possible prediction of bone response to external and internal influences. In this work we present a formulation for the bone density evolution process that takes into account not only the commonly considered mechanical stimulus, but, as novelty, also the influence of ...
Areti Papastavrou +2 more
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VARIATION IN THE BIOLOGICAL AVAILABILITY OF DIGOXIN
The Lancet, 1972Abstract Plasma-digoxin levels were measured in 76 outpatients. At the higher dose-levels significant differences were found between the digoxin levels of patients using 'Lanoxin' tablets* and those using other brands. Maintenance plasma-levels and absorption curves of digoxin were studied in 7 patients both when taking lanoxin and when on another ...
T. R. D. Shaw, M.R. Howard, John Hamer
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Biologic Availability of Digoxin Tablets
JAMA: The Journal of the American Medical Association, 1973One year ago, Lindenbaum and his colleagues 1 published the results of an investigation of the bioavailability of three different brands of digoxin tablets, including two different lots of one brand. While his data indicated that the blood levels varied widely, a follow-up investigation by the Food and Drug Administration (FDA) revealed that the brand ...
Jerome P. Skelly, Gene Knapp
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Pharmacokinetics and biological availability of erythromycin
Infection, 1977A pharmacokinetic model has been developed for erythromycin involving seven transfer or interaction steps. The major steps describing the role of erythromycin derivatives and dosage form design in the absorptive process, impact of protein binding on drug distribution, specificity of erythromycin for bacterial ribosomes, and the determination of serum ...
J. A. Seitz, A. H. C. Chun
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Assessment of the biologic availability of digoxin in man
Clinical Pharmacology & Therapeutics, 1974Low serum digoxin levels were found in 8 institutionalized patients with congestive heart failure despite daily administration, in standard dosage, of a digoxin preparation for 4 weeks. All 8 patients developed serum levels within the accepted therapeutic range after receiving another digoxin preparation for 1 week.
Lawrence Fleckenstein +2 more
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