Evidence map›Paper›PMID 19173758›Full record

ReviewExpert reviews in molecular medicine2009

Membrane transporters and folate homeostasis: intestinal absorption and transport into systemic compartments and tissues.

Rongbao Zhao, Larry H Matherly, I David Goldman

Open access · bronzeAbstract readReview
In one paragraph

Review in Expert reviews in molecular medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 176 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
176citing papers in PubMed, 1 pooled it
19.4field-weighted citation impact, top 1% 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

176 citing papers in PubMed, 1 synthesis or guideline pooled it, 382 citations in OpenAlex.

  1. Pooled it
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  12. International journal of molecular medicine · 2026
    Review
  13. Emerging Nanoplatforms are Effective Against Tumor Hypoxia.International journal of nanomedicine · 2026
    Review
  14. Article
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  17. Article
  18. FOLR2Cell communication and signaling : CCS · 2025
    Review
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116 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

3 authors at 2 institutions in 1 country.

Rongbao ZhaoDepartment of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Larry H Matherly
I David Goldman
Albert Einstein College of Medicine · USThe Barbara Ann Karmanos Cancer Institute · US

Funding

Proton-coupled folate/antifolate transportR01CA082621 · NCI · YESHIVA UNIVERSITY · PI GOLDMAN, ISRAEL DAVID · 1999 to 2017
$9.0M
MOLECULAR REGULATION OF FOLATE AND ANTIFOLATE TRANSPORTR01CA053535 · NCI · WAYNE STATE UNIVERSITY · PI HOU, ZHANJUN, MATHERLY, LARRY H · 1993 to 2024
$6.3M
NCI NIH HHS CA53535NCI NIH HHS CA82621NCI NIH HHS R01 CA053535NCI NIH HHS R01 CA082621
6 · The paper itself

Abstract

Members of the family of B9 vitamins are commonly known as folates. They are derived entirely from dietary sources and are key one-carbon donors required for de novo nucleotide and methionine synthesis. These highly hydrophilic molecules use several genetically distinct and functionally diverse transport systems to enter cells: the reduced folate carrier, the proton-coupled folate transporter and the folate receptors. Each plays a unique role in mediating folate transport across epithelia and into systemic tissues. The mechanism of intestinal folate absorption was recently uncovered, revealing the genetic basis for the autosomal recessive disorder hereditary folate malabsorption, which results from loss-of-function mutations in the proton-coupled folate transporter gene. It is therefore now possible to piece together how these folate transporters contribute, both individually and collectively, to folate homeostasis in humans. This review focuses on the physiological roles of the major folate transporters, with a brief consideration of their impact on the pharmacological activities of antifolates.

Indexed as

AnimalsBiological TransportCell CompartmentationFolic AcidHomeostasisHumansIntestinal AbsorptionMembrane Transport ProteinsModels, BiologicalOrgan SpecificityFolic AcidMembrane Transport Proteins

Identifiers

PMID19173758
PMCPMC3770294
OpenAlexW2154389444

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.