Role of astrocytes in pathogenesis of multiple sclerosis and their participation in regulation of cerebral circulation.

There is about 30% higher risk of the myocardial infarction in patients diagnosed with multiple sclerosis (MS) than in people without MS. Increased risk of cardiovascular disease development positively correlates with levels of serum markers of an endothelial dysfunction, and may give rise to a global cerebral hypoperfusion. It appears that these complications precede progressive loss of axons, which mechanisms are complex and should be linked to a loss of β2 adrenergic receptors on astrocytes of demyelinating lesions.