Globular Adiponectin, Acting via AdipoR1/APPL1, Protects H9c2 Cells from Hypoxia/Reoxygenation-Induced Apoptosis
2011

Adiponectin Protects Heart Cells from Damage Caused by Low Oxygen Levels

publication Evidence: moderate

Author Information

Author(s): Park Min, Youn ByungSoo, Zheng Xi-long, Wu Donghai, Xu Aimin, Sweeney Gary

Primary Institution: York University

Hypothesis

Adiponectin may mediate cardioprotective effects by attenuating apoptosis in heart cells during hypoxia-reoxygenation.

Conclusion

Adiponectin prevents cell death in heart cells by reducing oxidative stress and inhibiting the intrinsic apoptotic pathway.

Supporting Evidence

  • Adiponectin significantly reduced DNA fragmentation in heart cells after hypoxia-reoxygenation.
  • Adiponectin pretreatment decreased the levels of reactive oxygen species in heart cells.
  • Knockdown of AdipoR1 and APPL1 reduced the protective effects of adiponectin.

Takeaway

Adiponectin helps heart cells survive when they are starved of oxygen by stopping them from dying and reducing harmful substances inside them.

Methodology

The study used H9c2 heart cells subjected to hypoxia-reoxygenation to assess the protective effects of adiponectin on apoptosis through various assays including TUNEL and annexin V binding.

Limitations

The study is based on an in vitro model, which may not fully replicate in vivo conditions.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0019143

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