Evidence map›Paper›PMID 29321687›Full record

Trial reportEuropean journal of clinical nutrition2018

Impact of biofortified maize consumption on serum carotenoid concentrations in Zambian children.

Amanda C Palmer, Neal E Craft, Kerry J Schulze, Maxwell Barffour, Justin Chileshe, Ward Siamusantu, Keith P West

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of clinical nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01695148 (Efficacy of β-carotene Biofortified Maize in Improving Vitamin A Status and Reducing the Prevalence of Vitamin A Deficiency Among Children in Rural Zambia), which is not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 37% 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.

NCT01695148 phase3completednot on this map

Efficacy of β-carotene Biofortified Maize in Improving Vitamin A Status and Reducing the Prevalence of Vitamin A Deficiency Among Children in Rural Zambia

TypeinterventionalSponsorJohns Hopkins Bloomberg School of Public HealthRan2012 to 2013Enrolled1,228ConditionsVitamin A Deficiency, Low Serum RetinolArmsβ-Carotene Biofortified Maize Flour, White Maize Flour
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 27 citations in OpenAlex.

  1. Advancing provitamin A biofortification in sorghum: from allele mining and marker development to prebreeding and breeding.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. FromFrontiers in plant science · 2018
    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

7 authors at 3 institutions in 2 countries.

Amanda C PalmerCenter for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. acpalmer@jhu.edu.
Neal E CraftCraft Technologies Inc., Wilson, ND, USA.
Kerry J SchulzeCenter for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Maxwell BarffourCenter for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Justin ChilesheTropical Diseases Research Centre, Ndola, Zambia.
Ward SiamusantuNational Food and Nutrition Commission, Lusaka, Zambia.
Keith P WestCenter for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Johns Hopkins University · USCraft Technologies (United States) · USTropical Diseases Research Centre · ZM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biofortified maize, designed as an intervention strategy to prevent vitamin A deficiency, can provide upwards of 15 μg β-carotene per g dry weight. Some varieties also have elevated concentrations of other carotenoids. We conducted a cluster randomized, controlled feeding trial in rural Zambia to test the impact of daily consumption of biofortified maize over a 6-month period on vitamin A status. Serum concentrations of retinol and carotenoids were assessed by high-performance liquid chromatography. Data on circulating carotenoids by intervention group in 679 children are reported here. As previously shown, consumption of this β-carotene-rich maize significantly improved serum β-carotene concentrations (0.273 vs. 0.147 μmol/L, p < 0.001, in this subset of children). Here we show significant increases in α-carotene, β-cryptoxanthin, and zeaxanthin (p < 0.001). There was no impact on lutein or lycopene concentrations. Consumption of biofortified maize can have broader implications beyond the control of vitamin A deficiency (Trial registration: NCT01695148).

Indexed as

DietFood, FortifiedZea maysbeta CaroteneBeta-CryptoxanthinCarotenoidsChildChild, PreschoolFemaleGrowth DisordersHumansLuteinMaleNutritional StatusSocioeconomic FactorsThinnessalpha-carotenebeta CaroteneBeta-CryptoxanthinCarotenoidsLuteinZeaxanthins

Identifiers

PMID29321687
OpenAlexW2783929885

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.