title: [Relationship between aging and renal function: a positron emission tomographic study].
abstract: Blood volume (V), blood flow (F) and glomerular filtration rate (GFR) per 100 g (100 ml) of kidney were calculated with C15O, H(2)15O 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 aging-related decrease in V was less marked than those in F and GFR. Analysis by regression formula induced that F, GFR for subjects in their 70s are 76%, 46% and 55% for those in their 20s, respectively.
authors.affiliation: Kyoto Prefectural University of Medicine.
authors.forename: M
authors.initials: M
authors.lastname: Yamashita
authors.forename: T
authors.initials: T
authors.lastname: Inaba
authors.forename: Y
authors.initials: Y
authors.lastname: Oda
authors.forename: N
authors.initials: N
authors.lastname: Mizukawa
authors.forename: S
authors.initials: S
authors.lastname: Nakagawa
authors.forename: S
authors.initials: S
authors.lastname: Furuya
authors.forename: Y
authors.initials: Y
authors.lastname: Ushijima
authors.forename: H
authors.initials: H
authors.lastname: Nakahashi
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D001810:Blood Volume / Q000502:physiology; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D011866:Radioisotope Renography; D012079:Renal Circulation / Q000502:physiology; D014055:Tomography, Emission-Computed