our findings provide evidence that 1 ) measurement of sah accumulation is a sensitive metabolic index for the assessment of regional myocardial ischemia , 2 ) significant formation of sah occurs only when regional myocardial blood flow is less than 0.6 ml/min/g , and 3 ) transmural sah gradient , a measure of free cytosolic adenosine , and coronary venous adenosine release significantly increase only when the autoregulatory reserve is exhausted .
C0036001
sah
C0001443
adenosine