Evidence map›Paper›PMID 30569096›Full record

ArticleInternational journal of molecular medicine2019

Genipin protects against H2O2-induced oxidative damage in retinal pigment epithelial cells by promoting Nrf2 signaling.

Hailan Zhao, Ruiqing Wang, Mingxia Ye, Lan Zhang

Open access · hybridAbstract read
In one paragraph

Article in International journal of molecular medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.5field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. A Pilot Study to Evaluate Genipin inInternational journal of molecular sciences · 2023
    Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Medication Trends for Age-Related Macular Degeneration.International journal of molecular sciences · 2021
    Review
  16. Genipin in an Ex Vivo Corneal Model of Bacterial and Fungal Keratitis.Translational vision science & technology · 2021
    Article
  17. Anti-inflammatory activities ofExperimental and therapeutic medicine · 2021
    Article
  18. Article
  19. Spermidine Attenuates Oxidative Stress-Induced Apoptosis via Blocking CaInternational journal of molecular sciences · 2021
    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

4 authors at 3 institutions in 1 country.

Hailan ZhaoDepartment of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China.
Ruiqing WangDepartment of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China.
Mingxia YeDepartment of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China.
Lan ZhangDepartment of Ophthalmology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China.
Zhejiang Provincial People's Hospital · CNHangzhou Medical College · CNSecond Affiliated Hospital of Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidative stress serves a vital function in the pathogenesis of age‑related macular degeneration (AMD); genipin (GP) possesses antioxidative properties. The present study aimed to investigate the effects of GP on retinal pigment epithelial (RPE) cells induced by H2O2 and the underlying mechanism. ARPE‑19 cells were subjected to H2O2 treatment to induce oxidative damage. Cell viability was determined via an MTT assay. Reactive oxygen species (ROS) levels and cell apoptosis were detected by flow cytometry. Nuclear factor‑erythroid 2‑related factor‑2 (Nrf2) signaling‑associated and the expression of apoptosis‑associated factors were measured using reverse transcription‑quantitative polymerase chain reaction assay and western blotting. The results revealed that 200 µM H2O2 and 30 µM GP were determined to be the optimal concentrations for subsequent experimentation. GP reversed the inhibitory effects of H2O2 by promoting cell viability, attenuating ROS accumulation and cell apoptosis, and increased the expression of Nrf2, heme oxygenase‑1 (HO‑1) and NAD(P)H: Quinine oxidoreductase 1 (NQO1); Nrf2 silencing inhibited HO‑1 and NQO1 expression. In addition, Nrf2 silencing enhanced the effects of H2O2 by promoting ROS production and cell apoptosis. Compared with H2O2, Nrf2 silencing further decreased the expression levels of B‑cell lymphoma‑2 (Bcl‑2), but increased that of Bcl‑2‑associated X protein and cleaved‑caspase‑3. The results of the present study revealed that Nrf2 silencing attenuated the protective effects of GP on H2O2‑induced injury in ARPE‑19 cells by promoting apoptosis and oxidation. Collectively, GP attenuated oxidative damage induced by H2O2 in ARPE‑19 cells. Furthermore, the molecular mechanism may be associated with the Nrf2 signaling pathway. The findings of the present study nay provide insight into a potential therapeutic agent for the treatment of AMD.

Indexed as

ApoptosisCell LineCell SurvivalCytoprotectionEpithelial CellsGene SilencingHumansHydrogen PeroxideIridoidsNF-E2-Related Factor 2Oxidation-ReductionOxidative StressReactive Oxygen SpeciesRetinal Pigment EpitheliumSignal TransductiongenipinHydrogen PeroxideIridoidsNF-E2-Related Factor 2Reactive Oxygen Species

Identifiers

PMID30569096
PMCPMC6317649
OpenAlexW2903625960

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.