[Clinical investigation of plasma prostaglandin levels in patients with digestive cancers].
Plasma PGE2 level of 45 patients with digestive cancers, 10 patients with digestive benign diseases and 10 healthy controls were examined. Some patients were also examined plasma levels of TXB2, 6-keto-PGF1 alpha and PGF2 alpha. Plasma PGE2 level of digestive cancer patients (53.5 +/- 69.1 pg/ml, mean +/- SD) were about 10 times higher compared to healthy controls (5.2 +/- 3.8 pg/ml, p less than 0.01). Patients with digestive benign diseases also revealed elevated level of plasma PGE2, but the change of value were smaller than those of digestive cancer patients. Furthermore, in the case of digestive cancer patients, significantly elevated levels of TXB2 (49.7 +/- 60.3 pg/ml, p less than 0.05) and 6-keto-PGF1 alpha (33.9 +/- 31.5 pg/ml, p less than 0.01), and significantly reduced levels of PGF2 alpha (246 +/- 63 pg/ml, p less than 0.01) were noted. The changes in plasma prostaglandin levels of digestive cancer patients may reflect, even though prostaglandins are present in normal human body and are inactivated rapidly, the biological characteristics of tumors and in vivo reactions of the host.
Itakura
M
M
Nohara
T
T
Nakase
A
A
D015121:6-Ketoprostaglandin F1 alpha / Q000097:blood; D004066:Digestive System Diseases / Q000097:blood; D004067:Digestive System Neoplasms / Q000097:blood*; D015237:Dinoprost / Q000097:blood; D015232:Dinoprostone / Q000097:blood*; D006801:Humans; D013929:Thromboxane B2 / Q000097:blood
D013929:Thromboxane B2; D015121:6-Ketoprostaglandin F1 alpha; D015237:Dinoprost; D015232:Dinoprostone