Evidence map›Paper›PMID 33554222›Full record

ArticleAdvances in geriatric medicine and research2021

Metabolism in Male Reproductive Aging.

Ralph G Meyer, Mirella L Meyer-Ficca

Abstract read
In one paragraph

Article in Advances in geriatric medicine and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

2 authors.

Ralph G MeyerDepartment of Animal, Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84332, USA.
Mirella L Meyer-FiccaDepartment of Animal, Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84332, USA.

Funding

Molecular sensors for metabolic programming of the sperm epigenome and offspring physiologyR01HD103027 · NICHD · UTAH STATE UNIVERSITY · PI MEYER-FICCA, MIRELLA L · 2021 to 2025
$1.5M
NAD Metabolism in Male Reproductive AgingR56AG069745 · NIA · UTAH STATE UNIVERSITY · PI CHINI, EDUARDO N, MEYER-FICCA, MIRELLA L · 2020 to 2020
$381k
Vitamin B3 requirements of the TestisR15HD100970 · NICHD · UTAH STATE UNIVERSITY · PI MEYER, RALPH G · 2020 to 2020
$363k
NIA NIH HHS R56 AG069745NICHD NIH HHS R01 HD103027NICHD NIH HHS R15 HD100970
6 · The paper itself

Abstract

Similar to female reproductive health, male reproductive health declines with increasing age, albeit in a more gradual way. In the US, the average age of first-time fathers has been steadily increasing since 1980. This is concerning because increasing paternal age is positively correlated with reduced sperm chromatin quality and higher numbers of DNA strand breaks (DNA sb), which negatively affects pregnancy outcome and child development. While underlying reasons are not well understood, one of the well-known hallmarks of aging is a significant decline of body nicotinamide adenine dinucleotide (NAD) levels. We propose that low body-wide NAD levels provide a plausible explanation for metabolic alterations that are associated with declining hormonal production and testicular volume, as well as reduced sperm quality in aging men.

Indexed as

agingchromatindevelopmental origin of health and disease (DOHaD)DNA integritynicotinamide adenine dinucleotide (NAD)redox stressreproductive healthspermtestistestosterone

Identifiers

PMID33554222
PMCPMC7861562

What OpenQuestion holds

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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.