Evidence map›Paper›PMID 29631379›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2018

Tumor necrosis factor alpha reduces intestinal vitamin C uptake: a role for NF-κB-mediated signaling.

Veedamali S Subramanian, Subrata Sabui, Ganapathy A Subramenium, Jonathan S Marchant, Hamid M Said

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The Use of Organoid Cultures in Advancing Nutrition Research.Advances in nutrition (Bethesda, Md.) · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Mediators of inflammation · 2023
    Article
  13. Ascorbate Is a Primary Antioxidant in Mammals.Molecules (Basel, Switzerland) · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. ProbioticFrontiers in microbiology · 2022
    Article
  19. Article
  20. 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

5 authors at 3 institutions in 1 country.

Veedamali S SubramanianDepartment of Medicine, University of California , Irvine, California.
Subrata SabuiDepartment of Medicine, University of California , Irvine, California.
Ganapathy A SubrameniumDepartment of Medicine, University of California , Irvine, California.
Jonathan S MarchantDepartment of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin , Milwaukee, Wisconsin.
Hamid M SaidDepartment of Medicine, University of California , Irvine, California.
Long Beach Medical Center · USUniversity of California, Irvine · USMedical College of Wisconsin · US

Funding

INTESTINAL VITAMIN H UPTAKE--MOLECULAR/CELL REGULATIONR01DK058057 · NIDDK · UNIVERSITY OF CALIFORNIA-IRVINE · PI SAID, HAMID M · 2000 to 2019
$6.8M
Physiology/Pathophysiology of Vitamin B1 Transport in Pancreatic Acinar CellsR01AA018071 · NIAAA · UNIVERSITY OF CALIFORNIA-IRVINE · PI SAID, HAMID M · 2009 to 2023
$6.3M
Functional architecture of IP3-evoked local Ca2+ signalsR01GM088790 · NIGMS · UNIVERSITY OF MINNESOTA · PI MARCHANT, JONATHAN S, SLAMA, JAMES T · 2009 to 2025
$4.7M
Mechanism/Regulation of Intestinal Thiamin UptakeR37DK056061 · NIDDK · UNIVERSITY OF CALIFORNIA-IRVINE · PI SAID, HAMID M · 2009 to 2018
$3.6M
Physiology/pathophysiology of intestinal vitC uptake: Cell/molecular mechanismsR01DK107474 · NIDDK · UNIVERSITY OF CALIFORNIA-IRVINE · PI SUBRAMANIAN, VEEDAMALI S · 2016 to 2020
$2.1M
Physiological and Pathological Aspects of Intestinal Vitamin B2 AbsorptionI01BX001142 · VA · VETERANS HEALTH ADMINISTRATION · PI HAMID M SAID · 2011 to 2026
–
BLRD VA I01 BX001142NIAAA NIH HHS R01 AA018071NIDDK NIH HHS R01 DK058057NIDDK NIH HHS R01 DK107474NIDDK NIH HHS R37 DK056061NIGMS NIH HHS R01 GM088790
6 · The paper itself

Abstract

Sodium-dependent vitamin C transporter-1 (SVCT-1) is the major transporter mediating intestinal vitamin C uptake. Intestinal inflammation and prolonged infection are associated with increased serum and intestinal mucosa levels of tumor necrosis factor-α (TNF-α), which also exerts profound effects on the intestinal absorption process. Elevated levels of TNF-α have been linked to the pathogenesis of inflammatory bowel disease (IBD) and malabsorption of nutrients, and patients with this condition have low levels of vitamin C. To date, little is known about the effect of TNF-α on intestinal absorption of vitamin C. We studied the impact of TNF-α on ascorbic acid (AA) transport using a variety of intestinal preparations. The expression level of human SVCT-1 mRNA is significantly lower in patients with IBD. TNF-α treated Caco-2 cells and mice showed a significant inhibition of intestinal

Indexed as

Ascorbic AcidIntestinal AbsorptionAnimalsBiological TransportCaco-2 CellsHumansInflammatory Bowel DiseasesIntestinal MucosaMiceNF-kappa BSodium-Coupled Vitamin C TransportersTumor Necrosis Factor-alphaVitaminsAscorbic AcidNF-kappa BSodium-Coupled Vitamin C TransportersTumor Necrosis Factor-alphaVitaminsenteroidsSLC23A1SVCT-1transportvitamin C

Identifiers

PMID29631379
PMCPMC6139644
OpenAlexW2796166439

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.