Evidence map›Paper›PMID 25974036›Full record

ArticlePloS one2015

Grape Seed Proanthocyanidin Extract Ameliorates Diabetic Bladder Dysfunction via the Activation of the Nrf2 Pathway.

Shouzhen Chen, Yaofeng Zhu, Zhifeng Liu, Zhaoyun Gao, Baoying Li, Dongqing Zhang, Zhaocun Zhang, Xuewen Jiang, Zhengfang Liu, Lingquan Meng and 2 more

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 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.6field-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

30 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Therapeutic Potential of Mitochondrial Transplantation with Focus on DBD.International journal of molecular sciences · 2026
    Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Molecules (Basel, Switzerland) · 2019
    Article
  19. Review
  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

12 authors at 2 institutions in 1 country.

Shouzhen ChenDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Yaofeng ZhuDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Zhifeng LiuDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China; Department of Urology, The Central Hospital of Tai' an, Longtan Road, Tai' an, Shandong Province, People's Republic of China.
Zhaoyun GaoDepartment of Urology, People's Hospital of Yinan County, Lishan Road, Yinan, Shandong Province, People's Republic of China.
Baoying LiDepartment of Geriatrics, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Dongqing ZhangDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Zhaocun ZhangDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Xuewen JiangDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Zhengfang LiuDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Lingquan MengDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Yue YangDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Benkang ShiDepartment of Urology, Qilu Hospital of Shandong University, Wenhua Xi Road, Jinan, Shandong Province, People's Republic of China.
Qilu Hospital of Shandong University · CNTaian City Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diabetes Mellitus (DM)-induced bladder dysfunction is predominantly due to the long-term oxidative stress caused by hyperglycemia. Grape seed proanthocyanidin extract (GSPE) has been reported to possess a broad spectrum of pharmacological and therapeutic properties against oxidative stress. However, its protective effects against diabetic bladder dysfunction have not been clarified. This study focuses on the effects of GSPE on bladder dysfunction in diabetic rats induced by streptozotocin. After 8 weeks of GSPE administration, the bladder function of the diabetic rats was improved significantly, as indicated by both urodynamics analysis and histopathological manifestation. Moreover, the disordered activities of antioxidant enzymes (SOD and GSH-Px) and abnormal oxidative stress levels were partly reversed by treatment with GSPE. Furthermore, the level of apoptosis in the bladder caused by DM was decreased following the administration of GSPE according to the Terminal Deoxynucleotidyl Transferase (TdT)-mediated dUTP Nick-End Labeling (TUNEL) assay. Additionally, GSPE affected the expression of apoptosis-related proteins such as Bax, Bcl-2 and cleaved caspase-3. Furthermore, GSPE showed neuroprotective effects on the bladder of diabetic rats, as shown by the increased expression of nerve growth factor (NGF) and decreased expression of the precursor of nerve growth factor (proNGF). GSPE also activated nuclear erythroid2-related factor2 (Nrf2), which is a key antioxidative transcription factor, with the concomitant elevation of downstream hemeoxygenase-1 (HO-1). These findings suggested that GSPE could ameliorate diabetic bladder dysfunction and decrease the apoptosis of the bladder in diabetic rats, a finding that may be associated with its antioxidant activity and ability to activate the Nrf2 defense pathway.

Indexed as

AnimalsApoptosisDiabetes ComplicationsDiabetes Mellitus, ExperimentalFemaleGrape Seed ExtractNF-E2-Related Factor 2Oxidative StressProanthocyanidinsRatsRats, WistarSignal TransductionUrinary BladderGrape Seed ExtractGrape Seed ProanthocyanidinsNF-E2-Related Factor 2Proanthocyanidins

Identifiers

PMID25974036
PMCPMC4431834
OpenAlexW1571651529

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.