Evidence map›Paper›PMID 30909605›Full record

ArticleNutrients2019

Obesity Is Associated with Changes in Iron Nutrition Status and Its Homeostatic Regulation in Pregnancy.

María Eugenia Flores-Quijano, Rodrigo Vega-Sánchez, Mari Cruz Tolentino-Dolores, Mardia Guadalupe López-Alarcón, Mónica Crissel Flores-Urrutia, Ana Daniela López-Olvera, Juan O Talavera

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
2.8field-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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

María Eugenia Flores-QuijanoDepartamento de Nutrición y Bioprogramación, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México CP. 11000, Mexico. maru_fq@yahoo.com.
Rodrigo Vega-SánchezDepartamento de Nutrición y Bioprogramación, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México CP. 11000, Mexico. vegarodrig@gmail.com.
Mari Cruz Tolentino-DoloresDepartamento de Nutrición y Bioprogramación, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México CP. 11000, Mexico. cruz_tolentino@yahoo.com.mx.
Mardia Guadalupe López-AlarcónUnidad de Investigación Médica en Nutrición, Centro Médico Nacional Siglo XXI. Instituto Mexicano del Seguro Social (IMSS), Ciudad de México, CP. 06720, Mexico. marsau2@prodigy.net.mx.
Mónica Crissel Flores-UrrutiaDepartamento de Nutrición y Bioprogramación, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México CP. 11000, Mexico. fu.monicac@gmail.com.
Ana Daniela López-OlveraDepartamento de Ciencias de la Salud, Universidad del Valle de México, Coyoacán, Ciudad de México, CP. 04910, Mexico. a.daniela.lopez.o@gmail.com.
Juan O TalaveraDirección de Enseñanza e Investigación. Centro Médico ABC, Ciudad de México, CP. 01120, Mexico. jotalaverap@abchospital.com.
Instituto Nacional de Perinatología · MXCentro Médico ABC · MXMexican Social Security Institute · MXUniversidad del Valle de México · MX

Funding

Consejo Nacional de Ciencia y Tecnología 87397Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes" 212250-49531
6 · The paper itself

Abstract

The influence of obesity on maternal iron homeostasis and nutrition status during pregnancy remains only partially clarified. Our study objectives were (1) to describe how obesity influences broad iron nutrition spectrum biomarkers such as available or circulating iron (serum transferrin receptor (sTfr) and serum iron), iron reserves (ferritin), and functional iron (hemoglobin); and (2) to depict the regulating role of hepcidin. The above was carried out while considering influential factors such as initial iron nutrition status, iron intake, and the presence of inflammation. Ninety three non-anemic pregnant adult women were included, 40 with obesity (Ob) and 53 with adequate weight (AW); all took ≈30 mg/day of supplementary iron. Information on iron intake and blood samples were obtained at gestational weeks 13, 20, 27, and 35. A series of repeated measure analyses were performed using General Linear Models to discern the effect of obesity on each iron indicator; iron intake, hepcidin, and C-reactive protein were successively introduced as covariates. Available and circulating iron was lower in obese women: sTfr was higher (p = 0.07) and serum iron was lower (p = 0.01); and ferritin and hemoglobin were not different between groups. Hepcidin was higher in the Ob group (p = 0.01) and was a significant predictor variable for all biomarkers. Obesity during pregnancy dysregulates iron homeostasis, resembling "obesity hypoferremia".

Indexed as

HomeostasisAdultBiomarkersC-Reactive ProteinDietary SupplementsFemaleFerritinsHemoglobinsHepcidinsHumansInflammationIronLinear ModelsMaternal Nutritional Physiological PhenomenaNutritional StatusObesityBiomarkersC-Reactive ProteinFerritinsHemoglobinsHepcidinsIronReceptors, Transferrinferritinhemoglobinhepcidinironmaternal obesitypregnancyserum ironserum transferrin receptor

Identifiers

PMID30909605
PMCPMC6471435
OpenAlexW2925016153

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.