Is insulin Resistance Associated with Higher Cerebrospinal Fluid Tau Levels in Asymptomatic APOEɛ4 Carriers?
IR among asymptomatic APOEɛ4 carriers was associated with higher P-Tau181 and T-Tau in late-middle age. The results suggest that IR may contribute to tau-related neurodegeneration in preclinical AD. The findings may have implications for developing prevention strategies aimed at modifying IR in mid-life.
These data suggest that the hypoxia-induced accumulation of adenosine stimulates VEGF gene expression through stimulation of adenosine A2a receptor and subsequent activation of the cAMP-dependent protein kinase A pathway in retinal vascular cells.