Evidence map›Paper›PMID 37375581›Full record

ArticleNutrients2023

Association between Vitamin A and E Forms and Prostate Cancer Risk in the Singapore Prostate Cancer Study.

Wei Qi Loh, Xin Yin, Rie Kishida, Sin Eng Chia, Choon Nam Ong, Wei Jie Seow

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Wei Qi LohSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
Xin YinSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.ORCID 0000-0002-5065-3996
Rie KishidaSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
Sin Eng ChiaSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
Choon Nam OngSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
Wei Jie SeowSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.ORCID 0000-0002-9114-854X
National University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to assess associations between forms of vitamin A and E (both individually and collectively) and the risk of prostate cancer, as well as identify potential effect modifiers.

methodsUtilizing data from the Singapore Prostate Cancer Study, a hospital-based case-control study, we measured the serum concentrations of 15 different forms of vitamins A and E in 156 prostate cancer patients and 118 control subjects, using a high-performance liquid chromatography technique. These forms included retinol, lutein, zeaxanthin, α-cryptoxanthin, β-cryptoxanthin, α-carotene, β-carotene, lycopene, ubiquinone, δ-tocopherol, γ-tocopherol, α-tocopherol, δ-tocotrienol, γ-tocotrienol, and α-tocotrienol. The odds ratio and 95% confidence interval for associations between vitamin A and E and prostate cancer risk were estimated using logistic regression models after adjustment for potential confounders. The analyses were further stratified by smoking and alcohol consumption status. The mixture effect of micronutrient groups was evaluated using weighted quantile sum regression.

resultsHigher concentrations of retinol, lutein, α-carotene, β-carotene, ubiquinone, α-tocopherol, δ-tocotrienol, γ-tocotrienol, and α-tocotrienol were significantly and positively associated with overall prostate cancer risk. Among ever-smokers, associations were stronger for lutein, β-cryptoxanthin and β-carotene compared with never-smokers. Among regular alcohol drinkers, associations were stronger for lutein, β-cryptoxanthin, ubiquinone, γ-tocotrienol and α-tocotrienol compared with non-regular alcohol drinkers. Retinol and α-tocotrienol contributed most to the group indices 'vitamin A and provitamin A carotenoids' and 'vitamin E', respectively.

conclusionsSeveral serum vitamin A and E forms were associated with prostate cancer risk, with significant effect modification by smoking and alcohol consumption status. Our findings shed light on prostate cancer etiology.

Indexed as

Prostatic NeoplasmsTocotrienolsalpha-Tocopherolbeta CaroteneBeta-CryptoxanthinCarotenoidsCase-Control StudiesHumansLuteinMaleSingaporeUbiquinoneVitamin Aalpha-carotenealpha-Tocopherolbeta CaroteneBeta-CryptoxanthinCarotenoidsLuteinTocotrienolsUbiquinoneVitamin Acarotenoidscase-control studymixture analysistocopherolvitamin forms

Identifiers

PMID37375581
PMCPMC10301520
OpenAlexW4379927834

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.