Evidence map›Paper›PMID 28724658›Full record

Trial reportThe Journal of nutrition2017

A Daily Dose of 5 mg Folic Acid for 90 Days Is Associated with Increased Serum Unmetabolized Folic Acid and Reduced Natural Killer Cell Cytotoxicity in Healthy Brazilian Adults.

Clovis Paniz, Juliano Felix Bertinato, Maylla Rodrigues Lucena, Eduardo De Carli, Patrícia Mendonça da Silva Amorim, Guilherme Wataru Gomes, Cecília Zanin Palchetti, Maria Stella Figueiredo, Christine M Pfeiffer, Zia Fazili and 2 more

Registry-linked trialOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in The Journal of nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03421483 (Factors Affecting Colonic Folate Absorption and Metabolism in Humans), which is not on this map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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.

NCT03421483 naunknown statusnot on this mapstarted 2018, after this paper: background citation

Factors Affecting Colonic Folate Absorption and Metabolism in Humans

TypeinterventionalSponsorThe Hospital for Sick ChildrenRan2018 to 2023Enrolled24ConditionsFolateArmsFolic Acid supplementation, Adult Multivitamin
3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Serum folate metabolites, asthma, and lung function in a nationwide US study.The Journal of allergy and clinical immunology · 2020
    Trial
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Folic acid supplementation on congenital heart disease and its dual character.Current research in pharmacology and drug discovery · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Targeting one-carbon metabolism for cancer immunotherapy.Clinical and translational medicine · 2024
    Review
  19. Article
  20. Article
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

12 authors at 4 institutions in 3 countries.

Clovis PanizDepartments of Clinical and Toxicological Analysis and.ORCID 0000-0001- 6676-2970
Juliano Felix BertinatoDepartments of Clinical and Toxicological Analysis and.ORCID 0000-0002-9800-5357
Maylla Rodrigues LucenaHematology and Blood Transfusion Division, Federal University of Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0002-8427-9816
Eduardo De CarliFood and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0003-2900-8797
Patrícia Mendonça da Silva AmorimDepartments of Clinical and Toxicological Analysis and.ORCID 0000-0001-9409-2185
Guilherme Wataru GomesDepartments of Clinical and Toxicological Analysis and.ORCID 0000-0003-0416-0901
Cecília Zanin PalchettiDepartments of Clinical and Toxicological Analysis and.ORCID 0000-0002-5942-4284
Maria Stella FigueiredoHematology and Blood Transfusion Division, Federal University of Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0003-3977-9915
Christine M PfeifferNational Center for Environmental Health, CDC, Atlanta, GA; and.
Zia FaziliNational Center for Environmental Health, CDC, Atlanta, GA; and.
Ralph GreenDepartment of Pathology and Laboratory Medicine, UC Davis School of Medicine, Sacramento, CA.ORCID 0000-0002-9935-230X
Elvira Maria Guerra-ShinoharaDepartments of Clinical and Toxicological Analysis and emguerra@usp.br.ORCID 0000-0001-6681-2210
Universidade de São Paulo · BRNational Center for Environmental Health · USUniversidade Federal de São Paulo · BRUniversity of California, Davis · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Killer Cells, NaturalAdultBrazilDietary SupplementsFemaleFolic AcidHumansImmunityInflammation MediatorsInterleukin-8MaleMethylenetetrahydrofolate Reductase (NADPH2)Nutritional StatusProspective StudiesReal-Time Polymerase Chain ReactionReference ValuesFolic AcidInflammation MediatorsInterleukin-8Methylenetetrahydrofolate Reductase (NADPH2)RNA, MessengerTetrahydrofolate DehydrogenaseTumor Necrosis Factor-alphaVitamin B Complex5-methyl-THFfolic acid supplementationmRNA expressionNK cell cytotoxicityserum folateunmetabolized folic acid

Identifiers

PMID28724658
PMCPMC5712455
OpenAlexW2751533907

What OpenQuestion holds

Textmetadata
LicenceTDM
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.