Evidence map›Paper›PMID 39852937›Full record

ArticleVeterinary sciences2025

Effects of Chlorogenic Acid on In Vitro Maturation and Vitrification Cryopreservation of Sheep Oocytes.

Hong Tao, Yukun Zhao, Qiang Zhang, Xu Li, Guangdong Hu, Yanping Wang, Weibin Zeng

Abstract read
In one paragraph

Article in Veterinary sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

7 authors.

Hong TaoCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Yukun ZhaoCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Qiang ZhangCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Xu LiCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Guangdong HuCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.ORCID 0009-0003-8486-4227
Yanping WangCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Weibin ZengCollege of Animal Science and Technology, Shihezi University, Shihezi 832003, China.

Funding

Supported by Science and Technology Program of XPCC 2024DA006Technological Program in the Priority Areas of the Corps 2021AB014the Biological Breeding-Major Projects 2023ZD0405103-06
6 · The paper itself

Abstract

Chlorogenic acid (CGA) has strong antioxidant properties. In order to improve the low maturation rate and poor vitrification freezing effect of sheep oocytes caused by oxidative stress. In this study, oocytes from 200 2-3-year-old Kazakh sheep were collected, and different concentrations of CGA were added to the maturation medium and vitrification freezing solution to study the effects of CGA on the maturation rate, cleavage rate, blastocyst rate, reactive oxygen species (ROS) and glutathione (GSH) levels, mitochondrial membrane potential, and the expression levels of oxidation and apoptosis-related genes in sheep oocytes. The results showed that adding 40 μmol/L CGA to the oocyte in vitro maturation solution significantly increased the maturation rate of oocytes, adding 50 μmol/L CGA to the vitrification cryopreservative solution significantly increased the cleavage and blastocyst rates of mature oocytes activated by parthenogenetic activation after freezing. During in vitro maturation and vitrification freezing in sheep oocytes, CGA significantly reduced the level of ROS and the expression of apoptosis-related genes (Caspase-3 and Bax/Bcl-2), and significantly increased the level of glutathione (GSH), mitochondrial membrane potential, and the expression of antioxidant and anti-apoptosis-related genes (SOD-2 and GPX-3). In addition, CGA significantly increased the expression of the anti-apoptotic gene (AKT) and anti-stress gene (FOXO) during vitrification freezing of sheep oocytes. In conclusion, 40 μmol/L CGA improves the maturation rate of sheep oocytes, and 50 μmol/L CGA improves the quality of parthenogenetic activation embryos after vitrification freezing of mature oocytes in sheep. These results provide a basis for the production of sheep in vitro embryos and the establishment of a germplasm resource bank.

Indexed as

antioxidantCGAoocytesheep

Identifiers

PMID39852937
PMCPMC11769424

What OpenQuestion holds

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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.