Choroid plexus enlargement in patients with obstructive sleep apnea

Area of Science:

• Neuroscience
• Sleep Medicine
• Radiology

Background:

• The choroid plexus produces cerebrospinal fluid, essential for glymphatic system function.
• Glymphatic system dysfunction is implicated in various neurological conditions.
• Obstructive sleep apnea (OSA) may affect brain health and fluid dynamics.

Purpose of the Study:

• To investigate differences in choroid plexus volume between OSA patients and healthy controls.
• To explore the relationship between choroid plexus volume and OSA severity.
• To identify potential glymphatic system dysfunction in OSA.

Main Methods:

• Prospective enrollment of 40 OSA patients and 38 healthy controls.
• Three-dimensional T1-weighted brain MRI for volumetric analysis.
• Comparison of choroid plexus volumes and correlation with polysomnographic data.

Main Results:

• Choroid plexus volumes were significantly larger in OSA patients (2.311%) compared to controls (2.096%, p=0.005).
• No significant association was found between choroid plexus volume and polysomnographic findings in OSA patients.

Conclusions:

• Enlarged choroid plexus is observed in patients with obstructive sleep apnea.
• This enlargement may indicate glymphatic system dysfunction in OSA.
• Further research is needed to elucidate the mechanisms linking OSA, choroid plexus changes, and glymphatic function.