Evidence map›Paper›PMID 21182397›Full record

ReviewCritical reviews in clinical laboratory sciences2010

Molecular mechanisms for regulation of intestinal calcium absorption by vitamin D and other factors.

James C Fleet, Ryan D Schoch

Abstract readReview
In one paragraph

Review in Critical reviews in clinical laboratory sciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 3% 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

92 citing papers in PubMed, 1 synthesis or guideline pooled it, 235 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Article
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  9. Article
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  11. Review
  12. Risk Factors of Developing Dysmobility Syndrome in Elderly Patients with Type 2 Diabetes Mellitus.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
    Article
  13. Article
  14. Heat Stress in Japanese Quails (Animals : an open access journal from MDPI · 2024
    Review
  15. Article
  16. Effects of the Interaction between Dietary Vitamin DAnimals : an open access journal from MDPI · 2024
    Article
  17. Article
  18. Article
  19. Review
  20. Article

32 more citing papers are in PubMed but not listed here.

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.

James C FleetDepartment of Foods and Nutrition, Purdue University, West Lafayette, Indiana, USA.
Ryan D Schoch
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 DK054111NIDDK NIH HHS R01 DK054111
6 · The paper itself

Abstract

Optimal intestinal calcium (Ca) absorption is necessary for the protection of bone and the prevention of osteoporosis. Ca absorption can be represented as the sum of a saturable pathway and a non-saturable pathway that is primarily dependent upon luminal Ca concentration. While models have been proposed to describe these transport components, significant gaps still exist in our understanding of these processes. Habitual low intake of Ca up-regulates the saturable transport pathway, a process mediated by increased renal production of 1,25 dihydroxyvitamin D (1,25(OH)(2)D). Consistent with this, low vitamin D status as well as deletion/mutation of the vitamin D receptor (VDR) or 25 hydroxyvitamin D-1α hydroxylase (CYP27B1) genes limit Ca absorption by reducing the saturable pathway. There is some evidence that non-saturable Ca absorption in the ileum is also regulated by vitamin D status, but the mechanism is unclear. Treatment with a number of hormones can regulate Ca absorption in vivo (e.g. parathyroid hormone (PTH), thyroid hormone, growth hormone (GH)/insulin-like growth factor I (IGF-1), estrogen, testosterone). However, some of these actions are indirect (i.e. mediated through the regulation of vitamin D metabolism or signaling), whereas only a few (e.g. estrogen, IGF-1) have been shown to persist in the absence of vitamin D signaling.

Indexed as

AnimalsCalciumEstrogensFemaleHumansInsulin-Like Growth Factor IIntestine, SmallMiceModels, MolecularPregnancyReceptors, CalcitriolVitamin DCalciumEstrogensInsulin-Like Growth Factor IReceptors, CalcitriolVitamin D

Identifiers

PMID21182397
PMCPMC3235806
OpenAlexW2035167607

What OpenQuestion holds

Textmetadata
LicenceTDM
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.