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Vitamin D: A Cholecalciferol Metabolite Highly Active in Promoting Intestinal Calcium Transport

Myrtle, James F., Norman, Anthony W.·1971·Science

Abstract

A major polar metabolite of cholecalciferol (vitamin D 3 ) obtained from chick intestines is over four times as effective as cholecalciferol and over two times as effective as 25-hydroxycholecalciferol in stimulating intestinal calcium transport 24 hours after administration. Following a considerable lag, cholecalciferol and its 25-hydroxy derivative produce a maximum stimulation of the transport response at 24 to 48 hours. The polar intestinal metabolite greatly shortens this lag, stimulating maximum calcium transport by 9 hours. At 9 hours this metabolite is at least 13 times as active as the parent cholecalciferol and as such is a likely candidate for the biologically active form of cholecalciferol in the intestine.

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Metadata

Authors
Myrtle, J. F., & Norman, A. W.
Venue
Science
Published
1971-01-08
Volume
171
Issue
3966
Pages
79-82
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1972742800
Cited by
210
References
0
FWCI
49.89
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Vitamin D: A Cholecalciferol Metabolite Highly Active in Promoting Intestinal Calcium Transport. https://app.cochat.ai/papers/10.1126/science.171.3966.79
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Myrtle, J. F., & Norman, A. W. (1971). Vitamin D: A Cholecalciferol Metabolite Highly Active in Promoting Intestinal Calcium Transport. Science. https://doi.org/10.1126/science.171.3966.79

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.