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Biomedical subjects
Publications and source records attributed to A B Weinberger.
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Plasma renin activity and the urinary excretions of kallikrein, kinin, immunoreactive PGE (iPGE) and aldosterone were determined in 23 patients with progressive systemic sclerosis (PSS) on a fixed sodium and potassium intake who had no clinically apparent renal disease. Urinary excretions of kallikrein and kinin in the PSS patients were not significantly different from those of a group of sex and race-matched normal controls. In the female PSS patients urinary excretion of iPGE was also found to be normal. Upright PRA was appropriate for the urinary sodium excretion in 18 PSS patients (13 normotensive and 5 hypertensives) but was significantly elevated in the remaining 5 (all normotensive). The data suggest that the renal kallikrein-kinin and prostaglandin systems are unaltered in PSS patients without clinical evidence of renal disease.
The condition of 25 patients with Raynaud's phenomenon, initially examined by in vivo capillary microscopy, was followed to determine how those who had shown scleroderma-pattern (SD-pattern) capillary abnormalities compared with other patients later in the course of disease. Limited follow-up information was obtained on 19 patients (10 with and 9 without the SD-pattern); the interval between the initial examination and the follow-up ranged from 9 months to 5 years. The results revealed that during the interval, 5 of the 10 patients who had initially displayed SD-pattern capillary abnormalities had developed SD (systemic sclerosis) or a closely related disease, but none of the 9 others. The length of the follow-up was comparable in both groups.