[Transforming growth factor beta in patients with cervical artery dissection]

Area of Science:

• Vascular Biology
• Connective Tissue Disorders
• Biomarkers

Context:

• Cervical artery dissection (CeAD) is a significant cause of stroke in younger adults.
• The underlying pathophysiology of CeAD, particularly the role of connective tissue abnormalities, requires further elucidation.
• Transforming growth factor beta (TGF-β) is a key mediator in tissue repair and extracellular matrix remodeling.

Purpose:

• To investigate the levels of TGF-β in patients diagnosed with CeAD.
• To determine if TGF-β levels correlate with disease duration, clinical presentation, or specific arterial involvement in CeAD.
• To assess the potential of TGF-β as a biomarker for connective tissue dysplasia in CeAD patients.

Summary:

• Enzyme immunoassay revealed significantly elevated levels of TGF-β1 and TGF-β2 in 74 CeAD patients compared to 20 healthy controls (p=0.001 for both).
• Peak TGF-β levels were observed between 2-3 months post-dissection, suggesting a role in the active reparative process.
• No significant correlation was found between TGF-β levels and clinical manifestations (ischemic stroke, headache, nerve palsy) or angiographic findings (tortuosity, aneurysm).

Impact:

• Elevated TGF-β levels in CeAD patients support the hypothesis of an underlying connective tissue disorder contributing to arterial wall weakness.
• TGF-β may serve as a valuable biomarker for identifying connective tissue dysplasia in individuals with CeAD.
• Understanding the temporal dynamics of TGF-β could offer insights into the healing mechanisms following cervical artery dissection.