Evidence map›Paper›PMID 27785720›Full record

ArticleEnvironmental science and pollution research international2017

Individual and combined effect of chlorpyrifos and cypermethrin on reproductive system of adult male albino rats.

Eman Ahmad Alaa-Eldin, Dalia Abdallah El-Shafei, Nehal S Abouhashem

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
11.0field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Endocrine Disrupting Agents: Toxicological Aspects on Male Reproduction.Reproductive sciences (Thousand Oaks, Calif.) · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Endocrine Disruptors and Prostate Cancer.International journal of molecular sciences · 2022
    Review
  15. Article
  16. Review
  17. Endocrine Disruptors-'Food' for Thought.Proceedings of the Zoological Society · 2021
    Review
  18. Article
  19. Chlorpyrifos effects on integrin alpha v and beta 3 in implantation window phase.Environmental science and pollution research international · 2020
    Article
  20. 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

3 authors at 1 institution in 1 country.

Eman Ahmad Alaa-EldinFaculty of Medicine, Department of Forensic Medicine and Clinical Toxicology, Zagazig University, Zagazig, Egypt. Eman_alaa77@yahoo.com.
Dalia Abdallah El-ShafeiFaculty of Medicine, Department of Community, Environmental and Occupational Medicine, Zagazig University, Zagazig, Egypt.
Nehal S AbouhashemFaculty of Medicine, Department of Pathology, Zagazig University, Zagazig, Egypt.
Zagazig University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Commercial mixtures of chlorpyrifos and cypermethrin pesticides are widely used to enhance the toxic effects of cypermethrin on target insects. So, the purpose of the current study was to evaluate the individual and combined toxic effects of chlorpyrifos (CPF) and cypermethrin (CYP) on reproductive system of adult male albino rats. Forty adult male albino rats were randomized into main four groups: group I (control group) included 16 rats, subdivided into negative and positive control; group II (eight rats) received chlorpyrifos 6.75 mg/kg b.w./orally∕daily); group III (eight rats) (received cypermethrin 12.5 mg/kg b.w./orally∕daily); and group IV (eight rats) (received chlorpyrifos and cypermethrin at the same previously mentioned doses). All treatments were given by oral gavage for 12 weeks. We found that single CPF and CYP exposures significantly have adverse effects on reproductive function of adult male albino rats manifested by reduced testicular weight, decreased sperm count, motility and viability, significantly increased percent of morphologically abnormal spermatozoa, and significant increments in sperm DNA fragmentation index (DFI) with respect to control group. Furthermore, serum follicle stimulating hormone, luteinizing hormone, and testosterone levels were decreased significantly compared to control group. This was accompanied with histopathological changes in the testis of rats such as necrosis, degeneration, decreasing number of spermatogenic cells in some seminiferous tubules, edema, congested blood vessels, and exudate in interstitial tissue of the testis. Notably, all these changes were exaggerated in rats treated concomitantly with chlorpyrifos and cypermethrin rendering the mixture more toxic than the additive effects of each compound and causing greater damage on the reproductive system of male albino rats than the individual pesticides.

Indexed as

AnimalsChlorpyrifosDrug InteractionsFollicle Stimulating HormoneInsecticidesLuteinizing HormoneMalePyrethrinsRatsSeminiferous TubulesSpermatozoaTestisTestosteroneChlorpyrifoscypermethrinFollicle Stimulating HormoneInsecticidesLuteinizing HormonePyrethrinsTestosteroneChlorpyrifosCypermethrinOrganophosphorusPesticidesPyrethroidsReproductive toxicity

Identifiers

PMID27785720
OpenAlexW2546204693

What OpenQuestion holds

Textmetadata
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.