Evidence map›Paper›PMID 26294671›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2015

Intestinal DMT1 is critical for iron absorption in the mouse but is not required for the absorption of copper or manganese.

Ali Shawki, Sarah R Anthony, Yasuhiro Nose, Melinda A Engevik, Eric J Niespodzany, Tomasa Barrientos, Helena Öhrvik, Roger T Worrell, Dennis J Thiele, Bryan Mackenzie

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
8.8field-weighted citation impact, top 2% 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

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Balancing cellular copper levels via the post-translational regulation of copper transport.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
  4. Overlaps in mammalian iron and manganese homeostasis: recent advances.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
  5. Review
  6. Acidosis, Iron Dyshomeostasis and Inflammatory Injury.International journal of molecular sciences · 2026
    Review
  7. Article
  8. Article
  9. SLC11A2 affects nutritional immunity in the gut epithelium.bioRxiv : the preprint server for biology · 2025
    Article
  10. Distinct roles of ferric carboxymaltose and ferric derisomaltose on phosphate homeostasis in iron deficiency anemia.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2025
    Article
  11. Removal of Toxic Metabolites-Chelation: Manganese Disorders.Journal of inherited metabolic disease · 2025
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. International journal of molecular sciences · 2025
    Article
  17. Review
  18. Review
  19. Article
  20. Article

38 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

10 authors at 3 institutions in 2 countries.

Ali ShawkiDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio; Systems Biology & Physiology Program, University of Cincinnati College of Medicine, Cincinnati, Ohio;
Sarah R AnthonyDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio;
Yasuhiro NoseDepartment of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, North Carolina;
Melinda A EngevikDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio; Systems Biology & Physiology Program, University of Cincinnati College of Medicine, Cincinnati, Ohio;
Eric J NiespodzanyDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio;
Tomasa BarrientosDepartment of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, North Carolina;
Helena ÖhrvikDepartment of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, North Carolina; Department of Medical Biochemistry & Microbiology, Uppsala University, Uppsala, Sweden; and.
Roger T WorrellDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio; Systems Biology & Physiology Program, University of Cincinnati College of Medicine, Cincinnati, Ohio;
Dennis J ThieleDepartment of Pharmacology & Cancer Biology, Duke University Medical Center, Durham, North Carolina; Department of Biochemistry, Duke University Medical Center, Durham, North Carolina.
Bryan MackenzieDepartment of Molecular & Cellular Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio; Systems Biology & Physiology Program, University of Cincinnati College of Medicine, Cincinnati, Ohio; bryan.mackenzie@uc.edu.ORCID http://orcid.org/0000-0002-9661-8838
University of Cincinnati Medical Center · USDuke Medical Center · USUppsala University · SE

Funding

Stem Cell/Organoid and Genome Editing CoreP30DK078392 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI Alexander Miethke · 2007 to 2026
$24.4M
Copper Homeostasis in MammalsR01DK074192 · NIDDK · DUKE UNIVERSITY · PI MATSUNAMI, HIROAKI · 2006 to 2021
$5.2M
Short Term Medical Student Training GrantT35DK060444 · NIDDK · UNIVERSITY OF CINCINNATI · PI JASON T BLACKARD · 2002 to 2026
$2.3M
Divalent metal-ion transporter DMT1 and its role in intestinal metal-ion uptakeR01DK080047 · NIDDK · UNIVERSITY OF CINCINNATI · PI MACKENZIE, BRYAN · 2008 to 2012
$1.5M
NIDDK NIH HHS DK-060444NIDDK NIH HHS P30 DK078392NIDDK NIH HHS P30-DK-078392NIDDK NIH HHS R01 DK074192NIDDK NIH HHS R01-DK-074192NIDDK NIH HHS R01 DK080047NIDDK NIH HHS R01-DK-080047NIDDK NIH HHS T35 DK060444
6 · The paper itself

Abstract

Divalent metal-ion transporter-1 (DMT1) is a widely expressed iron-preferring membrane-transport protein that serves a critical role in erythroid iron utilization. We have investigated its role in intestinal metal absorption by studying a mouse model lacking intestinal DMT1 (i.e., DMT1(int/int)). DMT1(int/int) mice exhibited a profound hypochromic-microcytic anemia, splenomegaly, and cardiomegaly. That the anemia was due to iron deficiency was demonstrated by the following observations in DMT1(int/int) mice: 1) blood iron and tissue nonheme-iron stores were depleted; 2) mRNA expression of liver hepcidin (Hamp1) was depressed; and 3) intraperitoneal iron injection corrected the anemia, and reversed the changes in blood iron, nonheme-iron stores, and hepcidin expression levels. We observed decreased total iron content in multiple tissues from DMT1(int/int) mice compared with DMT1(+/+) mice but no meaningful change in copper, manganese, or zinc. DMT1(int/int) mice absorbed (64)Cu and (54)Mn from an intragastric dose to the same extent as did DMT1(+/+) mice but the absorption of (59)Fe was virtually abolished in DMT1(int/int) mice. This study reveals a critical function for DMT1 in intestinal nonheme-iron absorption for normal growth and development. Further, this work demonstrates that intestinal DMT1 is not required for the intestinal transport of copper, manganese, or zinc.

Indexed as

Anemia, HypochromicAnimalsCation Transport ProteinsCopperCopper Transporter 1Gene Expression RegulationHomeostasisIntestinal AbsorptionIronManganeseMiceMice, KnockoutSolute Carrier Family 11, Member 2ZincCation Transport ProteinsCopperCopper Transporter 1IronManganeseSlc31a1 protein, mouseSolute Carrier Family 11, Member 2Zinccopper absorptioniron deficiencyiron-deficiency anemiairon-refractive iron-deficiency anemiamanganese absorptionSLC11A2zinc metabolism

Identifiers

PMID26294671
PMCPMC4609933
OpenAlexW2285933662

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.