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Effect of Vitamin D on Growth in Experimental Uremia

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Journal Am J Clin Nutr
Publisher Elsevier
Date 1978 Oct 1
PMID 707349
Citations 5
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Abstract

Acceleration of growth of uremic children after administration of vitamin D has been demonstrated by various authors. This has been attributed to healing of skeletal lesions. Clinical observations suggest that vitamin D has also an effect on food intake perhaps associated with improvement of vitality. This could be confirmed in an experimental study in which uremic rats (subtotal nephrectomy) with and without vitamin D supplementation were compared with sham-operated pair-fed control rats with and without vitamin D supplementation. In uremic animals supplemented with vitamin D, weight gain and growth were significantly greater than in uremic animals on the control diet. Both with and without vitamin D supplements, weight gain and growth rate were greater in sham-operated pair-fed control than in the corresponding uremic animals. Histological abnormalities in the growth zone of uremic rats were markedly reduced by vitamin D. Since food intake was greater in vitamin D-treated uremic animals than in nonvitamin D-treated uremic animals, the increase in growth rate under vitamin D cannot be attributed exclusively to the skeletal effects of vitamin D. This study demonstrates important extraskeletal actions of vitamin D which may be associated with or causally related to the improvement of growth.

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