Results 121 to 130 of about 48,240 (169)
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Dietary Phosphorus and Bone Disease
2017The intake of phosphorus from foods, both inorganic and organic sources, may exert an adverse effect on the homeostatic regulation of calcium as well as of phosphate if it is too high or too low. This effect is especially true when the ratio of dietary calcium to dietary phosphorus is below 0.5–1 or greater than 1.5–1.
John J. B. Anderson, David W. Dempster
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2020
The effects of dietary phosphorus restriction followed by acute high phosphorus load on fractional phosphorus absorption will be investigated in 72 commercial male Sprague-Dawley rats with 5/6th nephrectomy (n=36) or sham operation (n=36). This study is a 2x3 factorial design with n=12 rats assigned to one of three dietary treatment groups within each ...
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The effects of dietary phosphorus restriction followed by acute high phosphorus load on fractional phosphorus absorption will be investigated in 72 commercial male Sprague-Dawley rats with 5/6th nephrectomy (n=36) or sham operation (n=36). This study is a 2x3 factorial design with n=12 rats assigned to one of three dietary treatment groups within each ...
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Dietary phosphorus depletion in sheep:
Journal of Animal Physiology and Animal Nutrition, 1990ZusammenfassungDie Untersuchungen wurden an sechs Schafen mit einem Alter von etwa 8 Monaten bei Versuchsbeginn durchgeführt. Über eine Dauer von 38 Wochen wurden die Tiere mit einer halbsynthetischen Ration gefüttert, über die sie täglich im Mittel 0,97 g P aufnahmen.
G. Breves, M. Prokop
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Effects of maleic acid on renal phosphorus transport: role of dietary phosphorus
American Journal of Physiology-Renal Physiology, 1991The effects of maleic acid on renal phosphate (Pi) transport were examined by clearance and brush-border membrane vesicle (BBMV) transport studies. In normal rats, maleic acid 50 mg.kg body wt-1.h-1 increased the phosphaturia (P less than 0.001). Intraperitoneal administration of a similar dose of maleic acid decreased the BBMV uptake of Pi but not ...
J, Guntupalli +5 more
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Effect of Dietary Phosphorus Deprivation on Renal Handling of Calcium and Phosphorus
1978It has been shown (1–6) that chronic Pi deprivation decreases urinary Pi excretion, but increases Ca excretion, suggesting a close relationship between Ca and Pi in renal adaptation to a variation in dietary Pi intake. However, in chronic Pi deprivation, plasma concentrations of Pi and Ca, and filtered loads of these ions are altered.
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The effects of uremia and dietary phosphorus on the bone of rats
Bone, 1990In order to evaluate the effects of uremia and low levels of dietary phosphorus on bone, male Sprague-Dawley rats weighing 320 +/- 20 g (12 weeks old) were subjected to either a two-step, subtotal nephrectomy or sham-operation (SO), and then fed a custom diet with either normal calcium (0.5%) and normal phosphorus (0.3%) (NCNP), or normal calcium and ...
W G, Lieuallen +3 more
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Pathophysiological Effects of Low Dietary Phosphorus in Pigs
The Veterinary Journal, 2001The homeostasis of inorganic phosphate (P(i)) is regulated by parathyroid hormone (PTH), 1,25-dihydroxyvitamin D (1,25(OH)(2)D), and P(i)itself in the intestine, kidney, and bone in all the mammalian species studied. Determinations of the serum concentrations of PTH, 1,25(OH)(2)D and osteocalcin were done in 82 southern Romanian Landrace pigs ...
Riond JL, Wanner M, Coste H, Pârvu G
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Maintenance requirements of phosphorus and absorbability of dietary phosphorus in sheep
The Journal of Agricultural Science, 1983The factorial approach to the determination of the dietary requirements of macroelements is a two-stage process; in the first the net requirements are estimated and in the second, the fractional absorption of the dietary mineral is used to convert net to dietary requirements (Agricultural Research Council, 1965).
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Dietary phosphorus and water quality
2017There is a direct relationship between phosphorus levels in dairy cattle rations and the amount of phosphorus excreted in manure. Phosphorus accumulates in surface water and can pollute ponds, streams and lakes.
Myers, Kelly +2 more
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Early Renal Adaptation to Dietary Phosphorus Restriction
1984An important consequence of dietary phosphorus (P) restriction is the ability of the kidney to virtually clear the urine of phosphate (Pi) (1). This adaptation can occur in the normal, thyroparathyroidectomized (1), and vitamin D-deficient state (2). The adaptation has been demonstrated in isolated perfused proximal tubules (3) as well as in vesicles ...
B S, Levine, K, Kurokawa, J W, Coburn
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