Comparative value of purine metabolites in preeclampsia and acute cerebral stroke

The values of the purine metabolites in preeclampsia and acute cerebral stroke were compared. A total of 33 patients with preeclampsia and 350 patients with an acute cerebral stroke were examined. The blood and liquor guanine, hypoxanthine, adenine, xanthine, and uric acid were determined by a direct spectrophotometry, in addition to conventional laboratory parameters. It has been established that there are clinical–pathobiochemical parallels between preeclampsia and the cerebral stroke, including by the features of purine metabolism. It is known that the most pronounced adverse metabolic indicator (marker, predictor) for both preeclampsia and the cerebral stroke is hyperuricemia. It was revealed that the favorable sign for stroke is the high values of oxypurines (hypoxanthine, xanthin, and uric acid) in the cerebrospinal fluid, and for preeclampsia their low levels. It has been shown that cerebrospinal fluid is not only the medium of administration of the drugs for spinal anesthesia, but also a source of valuable diagnostic and prognostic information, including in preeclampsia. Preeclampsia is metabolically like stroke with an unfavorable significance of hyperuricemia and diametrically antagonistic to stroke with a favorable value not increased, but a reduced concentration of hypoxanthine, xanthin, and uric acid in cerebrospinal fluid. The level of uric acid and other purines in patients suffering from a preeclampsia and in patients suffering from a cerebral stroke should be determined not only in the blood serum, but also, as far as possible, in cerebrospinal fluid.