Research

Hormonal

Intermittent hypoxia, the hallmark of Obstructive Sleep Apnoea Syndrome (OSAS), preferentially activates inflammatory transcription factors (specifically NF-kB and AP-1) over adaptive pathways, leading to endothelial dysfunction and increased cardiovascular risk.

If you have Obstructive Sleep Apnoea, treating it with CPAP is critical for your heart health, not just your energy levels. The repeated drops in oxygen during sleep trigger inflammation that damages your blood vessels. Effective CPAP therapy has been shown to significantly reduce these inflammatory markers (like TNFa) and improve endothelial function, thereby lowering your long-term risk of heart disease and stroke.

GoodSupportsHIGH confidence
Intermittent hypoxia, the hallmark of OSAS, results in activation of pro-inflammatory transcription factors such as nuclear factor kappa B (NF-kB) and activator protein (AP)-1. These promote activation of various inflammatory cells... with the downstream consequence of expression of pro-inflammatory mediators that may lead to endothelial dysfunction.
Stephen J. Ryan et al. · Postgraduate Medical Journal · 2009

Why this rating

Strong evidence from multiple cell culture, animal, and human studies, though the paper notes some conflicting results regarding specific markers like CRP and IL-6 due to obesity confounding.

Source

Systemic inflammation: a key factor in the pathogenesis of cardiovascular complications in obstructive sleep apnoea syndrome?

Stephen J. Ryan et al. · Postgraduate Medical Journal · 2009

DOI 10.1136/thx.2008.105577

narrative_reviewCited 335×
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DOI resolved against Crossref · corpus check 2026-06-10

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