ArticleBiological trace element research2026
Associations of Blood Lead Concentrations with Ferritin, Vitamin B12, and Homocysteine Levels in Mexican Preschool Children: A Nationally Representative Study.
Article in Biological trace element research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lead exposure remains a significant public health concern in Mexico. Preschool children are particularly susceptible to lead toxicity, and alterations in micronutrient status, including iron, have been linked to lead exposure. However, data on the association between blood lead concentration and micronutrient status in Mexican preschool children are lacking. In this study, data from the 2022 National Health and Nutrition Survey (Encuesta Nacional de Salud y Nutrición, ENSANUT) were analyzed. The associations between blood lead concentration and biochemical parameters (ferritin, soluble transferrin receptor, vitamin B12, homocysteine, folate, and C-reactive protein) were evaluated using 249 samples, representing 1,864,366 Mexican preschool children. The potential mediating role of vitamin D was also examined. Generalized linear models were applied. Each unit increase in blood lead concentration was associated with a 5% reduction in ferritin and vitamin B12 levels (p < 0.001). Blood lead concentration was also positively associated with homocysteine levels (1.5%; p < 0.001). Vitamin D did not mediate the association between blood lead concentration and biochemical parameters. These findings indicate that elevated blood lead levels are associated with changes in micronutrient status among Mexican preschool children.
Indexed as
Identifiers
42185616What OpenQuestion holds
Registered trials
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.