Evidence map›Paper›PMID 36976990›Full record

ArticleToxics2023

Polystyrene Microplastics Induced Ovarian Toxicity in Juvenile Rats Associated with Oxidative Stress and Activation of the PERK-eIF2α-ATF4-CHOP Signaling Pathway.

Wanzhen Wang, Jiafu Guan, Yueying Feng, Shanji Liu, Yu Zhao, Yuanyuan Xu, Hengyi Xu, Fen Fu

Open access · goldAbstract read
In one paragraph

Article in Toxics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Ovarian toxic effects of micro- and nanoplastics (Review).Experimental and therapeutic medicine · 2026
    Review
  5. Review
  6. A review of the impact of micro- and nanoplastics on female reproduction: What we know and gaps in knowledge.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
    Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Forever particles: histochemistry in the plasticene age.European journal of histochemistry : EJH · 2025
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. 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.

Wanzhen WangThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.ORCID 0000-0003-4726-3193
Jiafu GuanThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Yueying FengThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Shanji LiuThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Yu ZhaoThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Yuanyuan XuThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Hengyi XuState Key Laboratory of Food Science and Technology, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.ORCID 0000-0003-0457-9665
Fen FuThe Second Affiliated Hospital of Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
Nanchang University · CN

Funding

Research Foundation from Academic and Technical Leaders of Major Disciplines in Jiangxi Province, China 20194BCJ22004
6 · The paper itself

Abstract

Numerous reports confirm that microplastics exposure could induce reproductive toxicity in mammals. However, the effects of microplastics exposure during juveniles on ovarian apoptosis through oxidative and endoplasmic reticulum (ER) stresses remains unclear, which is the focus of our study. In the present study, female rats (4 weeks old) were exposed to polystyrene microplastics (PS-MPs, 1 μm) at different dosages (0, 0.5, and 2.0 mg/kg) for 28 days. Findings revealed that 2.0 mg/kg of PS-MPs distinctly increased the atretic follicle ratio in the ovary and dramatically reduced the serum levels of estrogen and progesterone. Additionally, the oxidative stress indicators declined, including the activity of superoxide dismutase and catalase, whereas the malondialdehyde content in the ovary was considerably enhanced in the 2.0 mg/kg PS-MPs group. Furthermore, the expressions of genes related to ER stress (PERK, eIF2α, ATF4, and CHOP) and apoptosis were remarkably elevated in the 2.0 mg/kg PS-MPs group compared with those in the control group. We found that PS-MPs induced oxidative stress and activated the PERK-eIF2α-ATF4-CHOP signaling pathway in juvenile rats. Moreover, with the oxidative stress inhibitor N-acetyl-cysteine and eIF2α dephosphorylation blocker Salubrinal treatment, ovarian damage induced by PS-MPs was repaired and associated enzyme activities were improved. Overall, our results indicated that PS-MPs exposure induced ovarian injury associated with oxidative stress and activation of the PERK-eIF2α-ATF4-CHOP signaling pathway in juvenile rats, providing new prospects for assessing the health risks of children exposed to microplastics.

Indexed as

endoplasmic reticulum stressjuvenileovarian toxicityoxidative stresspolystyrene microplastics

Identifiers

PMID36976990
PMCPMC10057489
OpenAlexW4322500850

What OpenQuestion holds

Textmetadata
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.