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  • Title: Beta-thromboglobulin and platelet aggregates in glomerulonephritis.
    Author: Woo KT, Junor BJ, Salem H, d'Apice AJ, Whitworth JA, Kincaid-Smith P.
    Journal: Clin Nephrol; 1980 Aug; 14(2):92-5. PubMed ID: 6157505.
    Abstract:
    Circulating platelet aggregate ratios (CPAR) and plasma beta-thromboglobulin (B-TG) concentrations were determined in 53 patients with chronic progressive glomerulonephritis [mesangiocapillary glomerulonephritis (15) and focal and segmental hyalinosis and sclerosis (38)] and compared with those from both normal subjects and patients with no evidence of renal disease. The mean B-TG concentration was higher in patient controls [32.6 +/- 6.2 ng/ml (SEM)] than in normal subjects [19.0 +/- 2.0 ng/ml (SEM)] but this did not reach significance (P < 0.10 > 0.05). Nephritic patients had markedly elevated levels [49.8 +/- 4.0 ng/ml (SEM)], but B-TG was significantly correlated with renal impairment. Elevated B-TG levels in patients with nephritis may thus reflect renal impairment or ill-health. The mean CPAR of the nephritic patients [0.75 +/- 0.02 (SEM)] was lower than that of both normal [0.86 +/- 0.03 (SEM), P < 0.001] and patient controls [0.87 +/- 0.02 (SEM), P < 0.001]. CPAR was not correlated with renal function or platelet concentration. Low CPAR in nephritic subjects provides further evidence for in-vivo activation of platelets in patients with glomerulonephritis.
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