Evidence map›Paper›PMID 31474647›Full record

ArticleThe Journal of reproduction and development2019

L-carnitine prevents bovine oocyte aging and promotes subsequent embryonic development.

Wen-Jie Jiang, Xue-Rui Yao, Yu-Han Zhao, Qing-Shan Gao, Qing-Guo Jin, Ying-Hua Li, Ang-Guo Yan, Yong-Nan Xu

Open access · goldAbstract read
In one paragraph

Article in The Journal of reproduction and development, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 9% 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, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Ovarian aging: energy metabolism of oocytes.Journal of ovarian research · 2024
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Anti-Aging Effect of Urolithin A on Bovine OocytesAnimals : an open access journal from MDPI · 2021
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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

8 authors at 1 institution in 1 country.

Wen-Jie JiangCollege of Agriculture, Yanbian University, Yanji 133000, China.
Xue-Rui YaoCollege of Agriculture, Yanbian University, Yanji 133000, China.
Yu-Han ZhaoCollege of Agriculture, Yanbian University, Yanji 133000, China.
Qing-Shan GaoCollege of Agriculture, Yanbian University, Yanji 133000, China.
Qing-Guo JinCollege of Agriculture, Yanbian University, Yanji 133000, China.
Ying-Hua LiCollege of Agriculture, Yanbian University, Yanji 133000, China.
Ang-Guo YanCollege of Agriculture, Yanbian University, Yanji 133000, China.
Yong-Nan XuCollege of Agriculture, Yanbian University, Yanji 133000, China.
Yanbian University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

L-carnitine (LC) is well known for its antioxidant activity. In this study, we explored the potential mechanistic effects of LC supplementation on aged bovine oocytes in vitro. We showed that in-vitro maturation could enhance the subsequent developmental capacity of aging oocytes, when supplemented with LC. After in vitro fertilization, the blastocyst formation rate in the aged oocytes post-LC treatment significantly increased compared to that in untreated aged oocytes (29.23 ± 2.20% vs. 20.90 ± 3.05%). Furthermore, after LC treatment, the level of intracellular reactive oxygen species in aged oocytes significantly decreased, and glutathione levels significantly increased, compared to those in untreated aged oocytes. Mitochondrial membrane potential, the percentage of early apoptotic oocytes, and caspase-3 activity were significantly reduced in LC-treated aged oocytes compared to those in untreated aged oocytes. Furthermore, during in vitro aging, the mRNA levels of the anti-apoptotic genes, Bcl-xl and survivin in LC-treated aged oocytes were significantly higher than those in untreated aged oocytes. Overall, these results indicate that at least in in vitro conditions, LC can prevent the aging of bovine oocytes and improve the developmental capacity of bovine embryo.

Indexed as

CattleAnimalsCarnitineCells, CulturedCellular SenescenceCytoprotectionEmbryo, MammalianEmbryonic DevelopmentFemaleGlutathioneIn Vitro Oocyte Maturation TechniquesMembrane Potential, MitochondrialOocytesOxidative StressReactive Oxygen SpeciesCarnitineGlutathioneReactive Oxygen SpeciesBovineEmbryo developmentL-carnitineOocyte aging

Identifiers

PMID31474647
PMCPMC6923151
OpenAlexW2970248447

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.