Evidence map›Paper›PMID 25886196›Full record

ArticlePloS one2015

Diet-induced obesity in male C57BL/6 mice decreases fertility as a consequence of disrupted blood-testis barrier.

Yong Fan, Yue Liu, Ke Xue, Guobao Gu, Weimin Fan, Yali Xu, Zhide Ding

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
19.0field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 188 citations in OpenAlex.

  1. Article
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  8. Review
  9. High-Fat Diets Disturb Rat Epididymal Sperm Maturation.International journal of molecular sciences · 2025
    Article
  10. Review
  11. Review
  12. Review
  13. The role of leptin in the male reproductive system.Journal of the Turkish German Gynecological Association · 2024
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

35 more citing papers are in PubMed but not listed here.

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 at 3 institutions in 1 country.

Yong FanDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China.
Yue LiuDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China.
Ke XueDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China.
Guobao GuDepartment of Medical Laboratory Science, The Central Hospital of Zhabei District, Shanghai, China.
Weimin FanDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China; Department of Human Reproductive Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Yali XuDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China.
Zhide DingDepartment of Human Anatomy, Histology and Embryology, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China.
Shanghai Jiao Tong University · CNRuijin Hospital · CNShanghai Zhabei District Shibei Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity is a complex metabolic disease that is a serious detriment to both children and adult health, which induces a variety of diseases, such as cardiovascular disease, type II diabetes, hypertension and cancer. Although adverse effects of obesity on female reproduction or oocyte development have been well recognized, its harmfulness to male fertility is still unclear because of reported conflicting results. The aim of this study was to determine whether diet-induced obesity impairs male fertility and furthermore to uncover its underlying mechanisms. Thus, male C57BL/6 mice fed a high-fat diet (HFD) for 10 weeks served as a model of diet-induced obesity. The results clearly show that the percentage of sperm motility and progressive motility significantly decreased, whereas the proportion of teratozoospermia dramatically increased in HFD mice compared to those in normal diet fed controls. Besides, the sperm acrosome reaction fell accompanied by a decline in testosterone level and an increase in estradiol level in the HFD group. This alteration of sperm function parameters strongly indicated that the fertility of HFD mice was indeed impaired, which was also validated by a low pregnancy rate in their mated normal female. Moreover, testicular morphological analyses revealed that seminiferous epithelia were severely atrophic, and cell adhesions between spermatogenic cells and Sertoli cells were loosely arranged in HFD mice. Meanwhile, the integrity of the blood-testis barrier was severely interrupted consistent with declines in the tight junction related proteins, occludin, ZO-1 and androgen receptor, but instead endocytic vesicle-associated protein, clathrin rose. Taken together, obesity can impair male fertility through declines in the sperm function parameters, sex hormone level, whereas during spermatogenesis damage to the blood-testis barrier (BTB) integrity may be one of the crucial underlying factors accounting for this change.

Indexed as

Diet, High-FatAnimalsBlood-Testis BarrierBody WeightClathrinEstradiolFemaleFertilityLipidsMaleMiceMice, Inbred C57BLModels, AnimalObesityOccludinReceptors, AndrogenClathrinEstradiolLipidsOccludinReceptors, AndrogenTestosteroneTjp1 protein, mouseZonula Occludens-1 Protein

Identifiers

PMID25886196
PMCPMC4401673
OpenAlexW2054618826

What Socratic 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 Socratic graph.