RT Journal Article SR Electronic T1 Urinary Excretion of Angiotensin Converting Enzyme in NIDDM Patients With Nephropathy JF Diabetes Care JO Diabetes Care FD American Diabetes Association SP 580 OP 582 DO 10.2337/diacare.12.8.580 VO 12 IS 8 A1 Hosojima, Hiroyuki A1 Miyauchi, Eiji A1 Morimoto, Shinpei YR 1989 UL http://care.diabetesjournals.org/content/12/8/580.abstract AB Twenty-four-hour urinary excretion of angiotensinconverting enzyme (ACE) was investigated in relation to that of albumin and β2-microglobulin (β2M) in 25 noninsulin- dependent diabetes mellitus (NIDDM) patients without nephropathy, 13 NIDDM patients with incipient nephropathy, 18 NIDDM patients with overt nephropathy, and 14 nondiabetic subjects. NIDDM patients without nephropathy and nondiabetic subjects were similar in albumin, β2M, and ACE excretion. NIDDM patients with incipient nephropathy had elevated albumin excretion (P < .01) and similar (β2M and ACE excretion compared with nondiabetic subjects. On the other hand, NIDDM patients with overt nephropathy had elevated albumin, β2M, and ACE excretion compared with nondiabetic subjects (P < .01). In all NIDDM patients studied, a positive correlation was found between ACE excretion and albumin excretion (r = 0.76, P < .001) or β2M excretion (r = 0.52, P < .01). These data suggest that elevated ACE excretion in NIDDM patients with overt nephropathy may be reflective of renal tubular damage.