[Relationship between aging and renal function: a positron emission tomographic study].
1990
Blood volume (V), blood flow (F) and glomerular filtration rate (GFR) per 100 g (100 ml) of kidney were calculated with C15O, H215O and 68Ga-EDTA, to study age-related changes per unit tissue in 19 subjects using positron emission tomography. Age was negatively correlated with V, F and GFR. The agingrelated decrease in V was less marked than those in F and GFR. Analysis by regression formula induced that F, GFR for subjects in their 70 s are 76%, 46% and 55% for those in their 20 s, respectively.
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