Evidence map›Paper›PMID 34671631›Full record

ArticleFrontiers in nutrition2021

Antioxidant Vitamins and Carotenoids Intake and the Association With Poor Semen Quality: A Cross-Sectional Analysis of Men Referring to an Italian Fertility Clinic.

Valentina De Cosmi, Fabio Parazzini, Carlo Agostoni, Stefania Noli, Sonia Cipriani, Irene La Vecchia, Stefania Ferrari, Giovanna Esposito, Francesca Bravi, Elena Ricci

Open access · goldAbstract read
In one paragraph

Article in Frontiers in nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

7 citing papers in PubMed, 8 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

10 authors at 2 institutions in 1 country.

Valentina De CosmiDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Fabio ParazziniDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Carlo AgostoniDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Stefania NoliDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Sonia CiprianiDepartment of Woman, Newborn and Child, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Irene La VecchiaDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Stefania FerrariDepartment of Woman, Newborn and Child, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Giovanna EspositoDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Francesca BraviDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Elena RicciDepartment of Woman, Newborn and Child, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several studies suggested that male's diet affects fertility. This cross-sectional analysis from a prospective cohort study aims to explore the relation between antioxidants intake and sperm parameters in sub-fertile couples referring to a Fertility center. Socio-demographic characteristics, health history, lifestyle habits, and diet information were obtained. A semen sample was analyzed to proceed with assisted reproduction. Three hundred and twenty-three men were enrolled: 19.1% had semen volume (SV) < 1.5 mL, 31.4% sperm concentration (SC) < 15.0 mil/mL, 26.8% sperm motility < 32%, and 33.0% had total sperm count (TSC) < 39.0 mil. Higher levels of α-carotene were associated to lower risk of low SC [4th vs. 1st quartile, adjusted OR (aOR) 0.43, 95% CI 0.20-0.91) and low TSC (aOR 0.46, 95% CI 0.22-0.95). Higher intake of β-carotene was inversely associated with risk of low TSC. Lycopene intake was associated with higher risk for these conditions (aOR 2.46, 95%CI 1.01-5.98, SC), and (aOR 3.11, 95%CI 1.29-7.50, TSC). Risk of low semen volume was lower in men with higher level of vitamin D intake (aOR 0.25, 95%CI 0.09-0.66)]. Further research, especially, well-designed randomized clinical trials (RCT), is needed to understand how diet modifications may have a role in modulating male fertility and fecundability.

Indexed as

antioxidantsassisted reproduction techniquescarotenoidsdietmicronutrients

Identifiers

PMID34671631
PMCPMC8520935
OpenAlexW3207774474

What OpenQuestion holds

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LicenceCC BY
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.