Epigenetic changes by DNA methylation in chronic and intermittent hypoxia

Area of Science:

• Epigenetics
• Molecular Biology
• Physiology

Background:

• DNA methylation regulates gene transcription by controlling transcription factor accessibility.
• Chronic intermittent hypoxia (IH), common in sleep apnea, causes cardiovascular and respiratory problems.
• Chronic sustained hypoxia, like at high altitudes, triggers physiological adaptations.

Purpose of the Study:

• To review emerging evidence on DNA methylation's role in IH-induced pathologies.
• To explore DNA methylation's potential role in hypoxia adaptations.
• To investigate the impact on the hypoxia-inducible factor (HIF) signaling pathway.

Main Methods:

• Review of current scientific literature.
• Analysis of emerging evidence on DNA methylation.
• Focus on the hypoxia-inducible factor (HIF) signaling pathway.

Main Results:

• Emerging evidence suggests DNA methylation changes contribute to pathologies from chronic IH.
• DNA methylation may mediate adaptations to chronic sustained hypoxia.
• These epigenetic changes potentially affect the HIF signaling pathway.

Conclusions:

• DNA methylation is a key epigenetic mechanism influenced by hypoxia.
• Understanding these changes is crucial for addressing IH-related diseases.
• Further research is needed to fully elucidate the role of DNA methylation in hypoxia response.