Evidence map›Paper›PMID 24264043›Full record

ArticleInternational journal of molecular sciences2013

Alteration of tight junction gene expression by calcium- and vitamin D-deficient diet in the duodenum of calbindin-null mice.

Inho Hwang, Hyun Yang, Hong-Seok Kang, Changhwan Ahn, Eui-Ju Hong, Beum-Soo An, Eui-Bae Jeung

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Foods (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Biology of calcium homeostasis regulation in intestine and kidney.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Intestinal CaWorld journal of gastroenterology · 2020
    Review
  10. Review
  11. Article
  12. Article
  13. The role of SLC34A2 in intestinal phosphate absorption and phosphate homeostasis.Pflugers Archiv : European journal of physiology · 2019
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Molecular aspects of intestinal calcium absorption.World journal of gastroenterology · 2015
    Review
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

7 authors at 2 institutions in 1 country.

Inho HwangLaboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea. ebjeung@chungbuk.ac.kr.
Hyun Yang
Hong-Seok Kang
Changhwan Ahn
Eui-Ju Hong
Beum-Soo An
Eui-Bae Jeung
Chungbuk National University · KRPusan National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Calcium absorption is regulated by both active (transcellular) and passive (paracellular) pathways. Although each pathway has been studied, correlations between the two pathways have not been well elucidated. In previous investigations, the critical transcellular proteins, calbindin-D9k (CaBP-9k) and -D28k (CaBP-28k), were shown to affect other transcellular pathways by buffering intracellular calcium concentrations. The rate of paracellular calcium transport in the duodenum is generally determined by the expression of tight junction genes. In the present study, the effect of dietary calcium and/or vitamin D supplementation on the expression of tight junction genes (occludin, ZO-1 and claudin 2, 10b, 12 and 15) in the duodenum of CaBP-9k- and/or -28k-deficient mice was examined. With a normal diet, the expression of most tight junction genes in the duodenum was significantly increased in CaBP-9k knockout (KO) mice compared to wild-type (WT) animals. With a calcium- and vitamin D-deficient diet, tight junction gene expression was significantly decreased in the duodenum of the CaBP-9k KO mice. These findings suggest that expression of paracellular tight junction genes is regulated by transcellular CaBP proteins, suggesting that active and passive calcium transport pathways may function cooperatively.

Indexed as

AnimalsCalbindinsCalcium, DietaryDietDuodenumGene Expression RegulationMiceMice, KnockoutTight JunctionsVitamin DCalbindinsCalcium, DietaryVitamin D

Identifiers

PMID24264043
PMCPMC3856102
OpenAlexW2017670837

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.