Evidence map›Paper›PMID 40257949›Full record

ArticleBiomedica : revista del Instituto Nacional de Salud2025

Relationship between serum ferritin and proinflammatory markers in late pregnancy: An exploratory analysis from Cartagena, Colombia

Alejandra Puerto, Nelson Rafael Alvis-Zakzuk, Walter Annicchiarico, Nelson Alvis-Guzmán, Josefina Zakzuk

Abstract read
In one paragraph

Article in Biomedica : revista del Instituto Nacional de Salud, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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.

Alejandra PuertoInstituto de Investigaciones Inmunológicas, Universidad de Cartagena, Cartagena de Indias, Colombia.ORCID 0000-0001-5877-2001
Nelson Rafael Alvis-ZakzukLínea de Salud Materna, ALZAK Foundation, Cartagena de Indias, Colombia.ORCID 0000-0001-9136-9775
Walter AnnicchiaricoMedicina Materno-Fetal, Universidad Pontificia Bolivariana, Bogotá, D. C., Colombia.ORCID 0000-0001-8141-2362
Nelson Alvis-GuzmánInstituto de Investigaciones Inmunológicas, Universidad de Cartagena, Cartagena de Indias, Colombia; Ciencias de la Salud, Universidad de la Costa, Barranquilla, Colombia.ORCID 0000-0001-9458-864X
Josefina ZakzukInstituto de Investigaciones Inmunológicas, Universidad de Cartagena, Cartagena de Indias, Colombia; Línea de Salud Materna, ALZAK Foundation, Cartagena de Indias, Colombia.ORCID 0000-0002-6007-5376

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn a previous study, we identified an inverse relationship between adverse perinatal outcomes and iron status during late pregnancy of women recruited from a maternal hospital in Cartagena, Colombia. Some of these outcomes have also been linked to maternal inflammatory states. However, there is currently no clarity regarding the relationship between iron levels and proinflammatory markers during this period.

objectiveTo estimate the relationship between inflammatory markers and serum ferritin in third-trimester pregnancies. MATERIALS AND

methodsSerum ferritin, hemoglobin, and proinflammatory cytokine levels were determined in women in Cartagena in their third trimester of pregnancy. We analyzed the relationship between ferritin levels and proinflammatory cytokines, as well as the relationship between serum ferritin, hemoglobin, and inflammatory cytokine levels with adverse perinatal outcomes.

resultsThe levels of IL-6 were significantly associated with serum ferritin levels (β = 0.42, SE = 0.21, p = 0.04) but not with maternal age. Maternal serum ferritin had a positive weak correlation with the absolute number of lymphocytes and monocytes. Hemoglobin and maternal serum ferritin were weakly and inversely associated with birth weight. Serum ferritin but not IL-6 or IL-8 was associated with preterm birth.

conclusionsWe observed direct and mild associations of serum iron markers (serum ferritin, hemoglobin, and hematocrit) with lymphocyte counts. The inflammation marker, IL-6, was mildly associated with serum ferritin levels in late pregnancy. Women with elevated white blood cell counts and serum ferritin levels tended to have infants with lower birth weights. This fact suggests a potential involvement of iron in inflammatory processes during pregnancy, and conditions associated with inflammation in the final trimester may have adverse effects on perinatal outcomes.

Indexed as

CytokinesFerritinsInflammationPregnancy Trimester, ThirdAdultBiomarkersColombiaFemaleHemoglobinsHumansInfant, NewbornInterleukin-6PregnancyPremature BirthYoung AdultBiomarkersCytokinesFerritinsHemoglobinsInterleukin-6anemiacytokinesinfantinflammationinterleukin-6interleukin-8obstetric laborpregnancyprematurevery low birth weight

Identifiers

PMID40257949
PMCPMC12178658

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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.