Evidence map›Paper›PMID 17110426›Full record

ArticleEndocrinology2007

Intestinal resistance to 1,25 dihydroxyvitamin D in mice heterozygous for the vitamin D receptor knockout allele.

Yurong Song, James C Fleet

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.0field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 41 citations in OpenAlex.

  1. Male Lrp5A214V mice maintain high bone mass during dietary calcium restriction by altering the vitamin D endocrine system.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2024
    Article
  2. Article
  3. Review
  4. Intestinal CaWorld journal of gastroenterology · 2020
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Compensatory Changes in Calcium Metabolism Accompany the Loss of Vitamin D Receptor (VDR) From the Distal Intestine and Kidney of Mice.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2016
    Article
  10. Article
  11. Molecular aspects of intestinal calcium absorption.World journal of gastroenterology · 2015
    Review
  12. Gene-by-diet interactions influence calcium absorption and bone density in mice.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2014
    Article
  13. Article
  14. Animal models of colorectal cancer.Cancer metastasis reviews · 2013
    Review
  15. Article
  16. Article
  17. Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Yurong SongInterdepartmental Nutrition Program and Department of Foods and Nutrition, Purdue University, 700 West State Street, West Lafayette, IN 47906-2059, USA.
James C Fleet
Purdue University West Lafayette · US

Funding

ROLE OF VDR LEVEL IN VITAMIN D-MEDIATED CA ABSORPTIONR01DK054111 · NIDDK · UNIVERSITY OF NORTH CAROLINA GREENSBORO · PI FLEET, JAMES C. · 1997 to 2012
$3.2M
NIDDK NIH HHS DK 054111NIDDK NIH HHS R01 DK054111
6 · The paper itself

Abstract

We tested the hypothesis that low vitamin D receptor (VDR) level causes intestinal vitamin D resistance and intestinal calcium (Ca) malabsorption. To do so, we examined vitamin D regulated duodenal Ca absorption and gene expression [transient receptor potential channel, vallinoid subfamily member 6 (TRPV6), 24-hydroxylase, calbindin D(9k) (CaBP) mRNA, and CaBP protein] in wild-type mice and mice with reduced tissue VDR levels [i.e. heterozygotes for the VDR gene knockout (HT)]. Induction of 24-hydroxylase mRNA levels by 1,25 dihydroxyvitamin D(3) [1,25(OH)(2) D(3)] injection was significantly reduced in the duodenum and kidney of HT mice in both time-course and dose-response experiments. TRPV6 and CaBP mRNA levels in duodenum were significantly induced after 1,25(OH)(2) D(3) injection, but there was no difference in response between wild-type and HT mice. Feeding a low-calcium diet for 1 wk increased plasma PTH, renal 1alpha-hydroxylase (CYP27B1) mRNA level, and plasma 1,25(OH)(2) D(3), and this response was greater in HT mice (by 88, 55, and 37% higher, respectively). In contrast, duodenal TRPV6 and CaBP mRNA were not higher in HT mice fed the low-calcium diet. However, the response of duodenal Ca absorption and CaBP protein to increasing 1,25(OH)(2) D(3) levels was blunted by 40% in HT mice. Our data show that low VDR levels lead to resistance of intestinal Ca absorption to 1,25(OH)(2) D(3), and this resistance may be due to a role for the VDR (and VDR level) in the translation of CaBP.

Indexed as

AnimalsCalbindinsCalcitriolCalciumDietFemaleIntestinesMaleMiceMice, KnockoutReceptors, CalcitriolS100 Calcium Binding Protein GTranscriptional ActivationCalbindinsCalcitriolCalciumReceptors, CalcitriolS100 Calcium Binding Protein G

Identifiers

PMID17110426
PMCPMC2617756
OpenAlexW2037727994

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.