Evidence map›Paper›PMID 29673411›Full record

ArticleThe British journal of nutrition2018

Dietary minerals, reproductive hormone levels and sporadic anovulation: associations in healthy women with regular menstrual cycles.

Keewan Kim, Jean Wactawski-Wende, Kara A Michels, Karen C Schliep, Torie C Plowden, Ellen N Chaljub, Sunni L Mumford

Open access · bronzeAbstract read
In one paragraph

Article in The British journal of nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Relation between Selenium and Female Fertility: A Systematic Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Pooled it
  4. Review
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  6. Article
  7. The epithelial NaCell communication and signaling : CCS · 2024
    Article
  8. Article
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  10. Observational
  11. Consequences of Disturbing Manganese Homeostasis.International journal of molecular sciences · 2023
    Review
  12. Article
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  15. Observational
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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.

Keewan Kim1Division of Intramural Population Health Research,Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health,Bethesda,MD 20817,USA.
Jean Wactawski-Wende2Department of Epidemiology and Environmental Health,University at Buffalo,State University of New York,Buffalo,NY 14214,USA.
Kara A Michels1Division of Intramural Population Health Research,Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health,Bethesda,MD 20817,USA.
Karen C Schliep3Department of Family and Preventive Medicine,University of Utah Health Sciences Center,Salt Lake City,UT 84108,USA.
Torie C Plowden1Division of Intramural Population Health Research,Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health,Bethesda,MD 20817,USA.
Ellen N Chaljub1Division of Intramural Population Health Research,Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health,Bethesda,MD 20817,USA.
Sunni L Mumford1Division of Intramural Population Health Research,Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health,Bethesda,MD 20817,USA.
National Institutes of Health · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USState University of New York · USUniversity of Utah · US

Funding

Oxidative Stress, Hormones and Women s HealthZIAHD008762 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI PERKINS, NEIL · 2009 to 2025
$3.1M
Oxidative Stress, Hormones and Women's HealthZ01HD008762 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SCHISTERMAN, ENRIQUE F · 2003 to 2008
$264k
Intramural NIH HHS Z01 HD008762Intramural NIH HHS Z99 HD999999NIAID NIH HHS HHSN272201100002INICHD NIH HHS HHSN275201100002CNICHD NIH HHS HHSN275201100002G
6 · The paper itself

Abstract

Although minerals are linked to several reproductive outcomes, it is unknown whether dietary minerals are associated with ovulatory function. We hypothesised that low intakes of minerals would be associated with an increased risk of anovulation. We investigated associations between dietary mineral intake and both reproductive hormones and anovulation in healthy women in the BioCycle Study, which prospectively followed up 259 regularly menstruating women aged 18-44 years who were not taking mineral supplements for two menstrual cycles. Intakes of ten selected minerals were assessed through 24-h dietary recalls at up to four times per cycle in each participant. Oestradiol, progesterone, luteinising hormone (LH), follicle-stimulating hormone (FSH), sex-hormone-binding globulin and testosterone were measured in serum up to eight times per cycle. We used weighted linear mixed models to evaluate associations between minerals and hormones and generalised linear models for risk of anovulation. Compared with Na intake ≥1500 mg, Na intake <1500 mg was associated with higher levels of FSH (21·3 %; 95 % CI 7·5, 36·9) and LH (36·8 %; 95 % CI 16·5, 60·5) and lower levels of progesterone (-36·9 %; 95 % CI -56·5, -8·5). Na intake <1500 mg (risk ratio (RR) 2·70; 95 % CI 1·00, 7·31) and Mn intake <1·8 mg (RR 2·00; 95 % CI 1·02, 3·94) were associated with an increased risk of anovulation, compared with higher intakes, respectively. Other measured dietary minerals were not associated with ovulatory function. As essential minerals are mostly obtained via diet, our results comparing insufficient levels with sufficient levels highlight the need for future research on dietary nutrients and their associations with ovulatory cycles.

Indexed as

DietMenstrual CycleAdolescentAdultAnovulationDietary SupplementsEstradiolFemaleFollicle Stimulating HormoneHormonesHumansLuteinizing HormoneMineralsNew YorkOvulationPregnancyEstradiolFollicle Stimulating HormoneHormonesLuteinizing HormoneMineralsProgesteroneSex Hormone-Binding GlobulinTestosteroneAnovulationCacalciumcopperCuDietary mineralsFeFSH follicle-stimulating hormoneironKLH luteinising hormonemagnesiummanganeseMgMnNaPphosphoruspotassiumPremenopausal womenReproductive hormonesSeseleniumsodiumzincZn

Identifiers

PMID29673411
PMCPMC6019139
OpenAlexW2801565069

What OpenQuestion holds

Textmetadata
LicenceTDM
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.