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  • Title: The concentrations of 6-keto-PGF1 alpha and TXB2 in plasma samples from patients with benign and malignant tumours of the breast.
    Author: Nigam S, Becker R, Rosendahl U, Hammerstein J, Benedetto C, Barbero M, Slater TF.
    Journal: Prostaglandins; 1985 Apr; 29(4):513-28. PubMed ID: 3839084.
    Abstract:
    Peripheral plasma concentrations of 6-keto-PGF1 alpha and TXB2 were measured in patients with benign and malignant tumours of the breast, in patients with non-gynecological diseases, and in healthy female controls. The values were significantly higher in female patients with malignant tumours of the breast than in healthy controls (146 +/- 28 vs 13 +/- 2.5 pg/ml for 6-keto-PGF1 alpha p less than 0.01 and 78 +/- 17 vs 11 +/- 2 pg/ml for TXB2, p less than 0.01). Benign tumours of the breast were also associated with significantly raised plasma levels of 6-keto-PGF1 alpha and TXB2 compared to normal controls (52 +/- 5 vs 13 +/- 2.5 pg/ml for 6-keto-PGF1 alpha, p less than 0.01 and 26 +/- 5 vs 11 +/- 2 pg/ml for TXB2, p less than 0.05). The high levels of 6-keto-PGF1 alpha and TXB2 were not found to be correlated with clinical and histopathological data. The surgical removal of the primary tumour has apparently no effect on the plasma concentrations of 6-keto-PGF1 alpha and TXB2 over a follow-up period of 9 days after operation. The lack of alterations in the ratio of TXB2:6-keto-PGF1 alpha in the cancer patients and other subjects studied before and after surgery is indicative of the regulatory power of metabolic systems to preserve the homeostatic balance.
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