Calcium Metabolism of Preschool Children

Watson, Ellen Kemp; McGuire, Elinor Whelan; Meyer, Frieda L.; Hathaway, Milicent L.

doi:10.1093/jn/30.4.259

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…In Case 2 calcium retention increased from 30 % to 37 % and in Case 4 from 20% to 33 %. The total intake varied in our children, but Watson et al (1945) found that similar variations of intake did not influence the percentage retentions in normal children. The effect of cortisone on calcium retention which we observed was similar to that found by Fletcher (1957) in a boy of 3 years in whom the faecal calcium decreased when he was given 15 mg. of cortisone daily.…”

Section: Calcium Balance Studiesmentioning

confidence: 47%

“…However, the figure of 38 % retention is similar to that reported by Forfar, Balf, Maxwell and Tompsett (1956) and Morgan, Mitchell, Stowers and Thomson (1956) in affected infants of the same age while taking cortisone. The daily retention of calcium in Case 2 was 30 % which is between one and a half and three times more than normal at this age (Daniels, 1941;Watson, McGuire, Meyer and Hathaway, 1945;McLean, Lewis, Jensen, Hathaway, Breiter and Holmes, 1946;Irving, 1950). The daily retention in Case 4 was about normal when expressed as a percentage of intake but in absolute figures (137 mg. and 248 mg.), both children retained between one and a half and three times normal (Shohl, 1939;Holmes, 1945;Mitchell, Hamilton, Steggerda and Bean, 1945).…”

Section: Calcium Balance Studiesmentioning

confidence: 95%

See 1 more Smart Citation

Severe Infantile Hypercalcaemia with Special Reference to the Facies

Joseph¹,

Parrott²

1958

Archives of Disease in Childhood

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Section: Calcium Balance Studiesmentioning

confidence: 47%

Section: Calcium Balance Studiesmentioning

confidence: 95%

Severe Infantile Hypercalcaemia with Special Reference to the Facies

Joseph¹,

Parrott²

1958

Archives of Disease in Childhood

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“…Small increases in urinary calcium were noted after addition of sodium or potassium chloride to the diet of infants studied in this laboratory (61) and in adults (73). Potassium citrate consistently lowered urinary calcium excretion of 8 preschool children (74).…”

Section: The Influence Of Dietary Factors Other Than Calcium Intakementioning

confidence: 87%

Factors Influencing the Urinary Excretion of Calcium. I. In Normal Persons1

Knapp¹

1947

J. Clin. Invest.

160

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“…(887) or evaporated (889). Supplements of potassium or sodium citrate, citric acid andt>range juice affected the assimilation of milk calcium neither by adults (887,888) nor by children (885). Similarly, the assimilation (mainly from milk) of calcium by young women eating adequate diets was little influenced by the addition of 500 i.u.…”

Section: (C) Minerals Calcium and Phosphorusmentioning

confidence: 99%

Section D. Nutritive value of milk and milk products

Kon

Henry

1949

Journal of Dairy Research

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III. Nutritive value as estimated in laboratory andVitamin B, (pyridosrin) after parturition contained 14, 25, 36 and 29/xg./g. fat (0-9,1-1, 1-3 and 1-3 mg./l.) of carotene and 48, 91, 67 and 165 jig./g. fat (2-8, 3-7, 3-0 and 6-9 mg./l.) of vitamin A, and the effects of the supplements were still evident in later samples of colostrum. It is of interest that the addition of carotene did not increase the vitamin A, and that the administration of vitamm A did not depress the .carotene, in colostrum.Unpublished work at Shinfield(77) gave very similar results, but the high vitamin A ration depressed the carotene content of the colostrum. Corroborative evidence comes from Russia (78), and from the U.S. Bureau of Dairy Industry (79). The colostrum of two cows which had been on pasture had a higher vitamin A potency than that of two cows on a ration low in vitamin A (79).Several authors have studied the vitamin A and carotene content of colostrum of different breeds under normal and experimental conditions. Valuable information comes from the Ohio State University herd for which two sets of values are available, one for groups of five to nine Ayrshire, Guernsey, Friesian (Holstein) and Jersey cows which calved while on winter feed (80) and another for similar cows of the same breeds, with the addition of Brown Swiss, which calved a year or two later on pasture (81). The values are not strictly comparable as they are given for separate days in the first study and for separate milkings in the second. On both occasions the carotene concentration in the first sample was lowest for Friesian cows (1-97 and 2-89 mg./l.) and highest for Guernseys (4-97 and 8-64 mg./L). For vitamin A, Jerseys were bottom of the four breeds on both occasions (2-18 and 1-44 mg./L), but Ayrshires led in the first study with 2-94 mg./l. and Guernseys in the second with 2-79 mg./l. The values for the Brown Swiss were 4-97 mg./l. for carotene and 3-48 mg./l. for vitamin A. It is noteworthy that the colostrum of the cows which calved in winter was relatively poorer in carotene and richer in vitamin A than that of the cows on pasture. The differences were much less marked in later samples. An interesting feature of these findings was that, on both occasions, the concentration of carotene in the Jersey colostrum was at first much less than for Guernseys, and even less than for Ayrshires, but the concentration declined more slowly, and the Jerseys were leading, for example, from the fourth to the seventh milking in the second experiment. The results indicate a marked individual variation in the concentration of vitamin A and carotene in colostrum, a fact emphasized by the findings of most other authors. In the first 3 days after calving some 50 mg. of vitamin A and 60 mg. of carotene were secreted in colostrum (80).Hansen, Phillips & Smith (82) followed the vitamin A and carotene content of the colostrum, and its change with the progress of lactation and method of milking, of eighteen Friesian cows which were uniformly fed indoors throughout their first ...

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Calcium Metabolism of Preschool Children

Cited by 7 publications

References 9 publications

Severe Infantile Hypercalcaemia with Special Reference to the Facies

Severe Infantile Hypercalcaemia with Special Reference to the Facies

Factors Influencing the Urinary Excretion of Calcium. I. In Normal Persons1

Section D. Nutritive value of milk and milk products

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