Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
|
pubmed:dateCreated |
1988-12-22
|
pubmed:abstractText |
The effects of dietary calcium (Ca) concentration and calcium: phosphorus (Ca:P) ratio on mineral balance and nephrocalcinosis were studied in female rats. In the first experiment there were two dietary Ca concentrations (0.25 and 0.50%, wt/wt) at two different Ca:P ratios (0.6 and 1.3). In the second experiment the diets were formulated to contain 0.40% P and either 0.13, 0.25, 0.50 or 0.75% Ca. The diets contained 0.03% magnesium (Mg). The fecal outputs of Ca, P and Mg were lower (P less than 0.01) after feeding low Ca diets than after feeding high Ca diets. Urinary excretion of P decreased with increasing dietary Ca and increased with increasing P intake. In rats fed the 0.25% Ca diets whole-body retentions of Ca and P were lower than in the rats fed 0.50% Ca. Both increases in dietary Ca from 0.13 to 0.50% and P from 0.20 to 0.40% elevated Ca and P content of kidneys as well as the degree of nephrocalcinosis. However, after feeding the highest Ca concentration (0.75%) nephrocalcinosis was essentially absent while kidney concentrations of Ca and P were relatively low. When compared with 0.50% Ca in the diet, 0.75% Ca increased group mean whole-body retention of Ca but lowered that of P. In individual rats the degree of nephrocalcinosis and the concentrations of minerals in kidney were positively correlated.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0022-3166
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
118
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1210-6
|
pubmed:dateRevised |
2003-11-14
|
pubmed:meshHeading |
pubmed-meshheading:3183767-Animals,
pubmed-meshheading:3183767-Body Weight,
pubmed-meshheading:3183767-Calcium, Dietary,
pubmed-meshheading:3183767-Feces,
pubmed-meshheading:3183767-Female,
pubmed-meshheading:3183767-Food Analysis,
pubmed-meshheading:3183767-Magnesium,
pubmed-meshheading:3183767-Nephrocalcinosis,
pubmed-meshheading:3183767-Phosphorus,
pubmed-meshheading:3183767-Rats
|
pubmed:year |
1988
|
pubmed:articleTitle |
Influence of dietary calcium:phosphorus ratio on mineral excretion and nephrocalcinosis in female rats.
|
pubmed:affiliation |
Department of Laboratory Animal Science, State University, Utrecht, The Netherlands.
|
pubmed:publicationType |
Journal Article
|