Evidence map›Paper›PMID 22739378›Full record

ArticleThe Journal of nutrition2012

β-Carotene supplementation decreases placental transcription of LDL receptor-related protein 1 in wild-type mice and stimulates placental β-carotene uptake in marginally vitamin A-deficient mice.

Lesley Wassef, Varsha Shete, Alice Hong, Elizabeth Spiegler, Loredana Quadro

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  4. Interplay between β-carotene and lipoprotein metabolism at the maternal-fetal barrier.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2020
    Review
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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 1 institution in 1 country.

Lesley WassefDepartment of Food Science and Rutgers Center for Lipid Research, Rutgers University, New Brunswick, NJ, USA.
Varsha Shete
Alice Hong
Elizabeth Spiegler
Loredana Quadro
Rutgers, The State University of New Jersey · US

Funding

The role of b-carotene in maternal-fetal nutritionR01HD057493 · NICHD · RUTGERS, THE STATE UNIV OF N.J. · PI QUADRO, LOREDANA · 2008 to 2013
$1.9M
NICHD NIH HHS R01 HD057493NICHD NIH HHS R01HD057493NICHD NIH HHS R01HD057493-02S1
6 · The paper itself

Abstract

The human diet contains β-carotene as the most abundant precursor of vitamin A, an essential nutrient for embryogenesis. Our laboratory previously showed the importance of β-carotene metabolism via β-carotene-15,15'-oxygenase (CMOI) to support mouse embryonic development. However, the mechanisms regulating embryonic acquisition and utilization of β-carotene from the maternal circulation via placenta remain unknown. We used wild-type (WT) and Lrat(-/-)Rbp(-/-) (L(-/-)R(-/-)) mice, the latter being a model of marginal vitamin A deficiency. Pregnant dams, fed a nonpurified diet sufficient in vitamin A throughout life, were i.p. supplemented with β-carotene or vehicle at 13.5 d postcoitum (dpc). Effects of this acute maternal supplementation on retinoid and β-carotene metabolism in maternal (serum, liver) and developing tissues (placenta, yolk sac, embryo) were investigated at 14.5 dpc. We showed that, upon supplementation, placental β-carotene concentrations were greater in L(-/-)R(-/-) than in WT mice. However, the retinoid (retinol and retinyl ester) concentrations remained unchanged in placenta (and in all other tissues analyzed) of both genotypes upon β-carotene administration. We also showed that upon a single i.p. β-carotene supplementation, placental LDL receptor-related protein (Lrp1) mRNA expression was lower in WT mice, and embryonic CmoI mRNA expression was greater in L(-/-)R(-/-) mice. Together, these data suggest a potential role of LRP1 in mediating the uptake of β-carotene across the placenta and that even a marginally impaired maternal vitamin A status may influence uptake and utilization of β-carotene by the placenta and the embryo.

Indexed as

Animal FeedAnimal Nutritional Physiological PhenomenaAnimalsbeta CaroteneDietDietary SupplementsEmbryo, MammalianFemaleGene Expression RegulationLow Density Lipoprotein Receptor-Related Protein-1Maternal Nutritional Physiological PhenomenaMiceMice, KnockoutPlacentaPregnancyRandom Allocationbeta CaroteneLow Density Lipoprotein Receptor-Related Protein-1

Identifiers

PMID22739378
PMCPMC3397336
OpenAlexW2119238945

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.