Evidence map›Paper›PMID 24947444›Full record

ArticleReproduction (Cambridge, England)2014

Placental heme receptor LRP1 correlates with the heme exporter FLVCR1 and neonatal iron status.

Chang Cao, Eva K Pressman, Elizabeth M Cooper, Ronnie Guillet, Mark Westerman, Kimberly O O'Brien

Open access · bronzeAbstract read
In one paragraph

Article in Reproduction (Cambridge, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Iron and Pregnancy.Advances in experimental medicine and biology · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Iron Metabolism and Ferroptosis in Physiological and Pathological Pregnancy.International journal of molecular sciences · 2022
    Review
  11. Fetal iron uptake from recent maternal diet and the maternal RBC iron pool.The American journal of clinical nutrition · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Low-density lipoprotein receptor-related protein-1 facilitates heme scavenging after intracerebral hemorrhage in mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  17. Iron Nutriture of the Fetus, Neonate, Infant, and Child.Annals of nutrition & metabolism · 2017
    Review
  18. Maternal iron status during pregnancy compared with neonatal iron status better predicts placental iron transporter expression in humans.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2016
    Article
  19. Article
  20. Heme Mobilization in Animals: A Metallolipid's Journey.Accounts of chemical research · 2016
    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

6 authors at 2 institutions in 1 country.

Chang CaoDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA.
Eva K PressmanDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA.
Elizabeth M CooperDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA.
Ronnie GuilletDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA.
Mark WestermanDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA.
Kimberly O O'BrienDivision of Nutritional SciencesCornell University, 230 Savage Hall, Ithaca, New York 14853, USASchool of MedicineUniversity of Rochester, Rochester, New York, USAIntrinsic LifeSciencesLa Jolla, California, USA koo4@cornell.edu.
Cornell University · USUniversity of Rochester · US

Funding

The University of Rochester's Clinical and Translational Science InstituteUL1TR000042 · NCATS · UNIVERSITY OF ROCHESTER · PI BENNETT, NANCY M, KIEBURTZ, KARL D. · 2012 to 2015
$14.4M
NUTRITION TRAININGT32DK007158 · NIDDK · CORNELL UNIVERSITY ITHACA · PI PATRICIA A CASSANO, Julia L. Finkelstein · 1986 to 2026
$7.4M
NCATS NIH HHS UL1 TR000042NIDDK NIH HHS T32 DK007158NIDDK NIH HHS T32DK007158
6 · The paper itself

Abstract

LDL receptor-related protein 1 (LRP1) is a transmembrane receptor highly expressed in human placenta. It was recently found to be the receptor for heme and its plasma-binding protein hemopexin (Hx) and is integral to systemic heme clearance. Little is known about systemic concentrations of Hx during pregnancy and whether maternal Hx and placental LRP1 contributes to fetal iron (Fe) homeostasis during pregnancy. We hypothesized that placental LRP1 would be upregulated in maternal/neonatal Fe insufficiency and would be related to maternal circulating Hx. Placental LRP1 expression was assessed in 57 pregnant adolescents (14-18 years) in relationship with maternal and cord blood Fe status indicators (hemoglobin (Hb), serum ferritin, transferrin receptor), the Fe regulatory hormone hepcidin and serum Hx. Hx at mid-gestation correlated positively with Hb at mid-gestation (r=0.35, P=0.02) and Hx at delivery correlated positively with cord hepcidin (r=0.37, P=0.005). Placental LRP1 protein expression was significantly higher in women who exhibited greater decreases in serum Hx from mid-gestation to term (r=0.28, P=0.04). Significant associations were also found between placental LRP1 protein with cord hepcidin (r=-0.29, P=0.03) and placental heme exporter feline leukemia virus C receptor 1 (r=0.34, P=0.03). Our data are consistent with a role for placental heme Fe utilization in supporting fetal Fe demands.

Indexed as

AdolescentBiomarkersFemaleFerritinsFetal BloodHemoglobinsHemopexinHepcidinsHomeostasisHumansIronLow Density Lipoprotein Receptor-Related Protein-1Membrane Transport ProteinsPlacentaPregnancyProspective StudiesBiomarkersFerritinsFLVCR1 protein, humanHemoglobinsHemopexinHepcidinsIronLow Density Lipoprotein Receptor-Related Protein-1LRP1 protein, humanMembrane Transport ProteinsReceptors, TransferrinReceptors, Virus

Identifiers

PMID24947444
PMCPMC4196258
OpenAlexW2143463972

What OpenQuestion holds

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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.