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Neurosci Lett. 1999 Aug 6;270(3):188-90.

Acute and transient increase of lipocalin-type prostaglandin D synthase (beta-trace) level in cerebrospinal fluid of patients with aneurysmal subarachnoid hemorrhage.

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Department of Neurosurgery, Nagoya City University Medical School, Nagoya, Japan.


We measured the concentration of lipocalin-type prostaglandin D synthase (PGDS) in cerebrospinal fluid (CSF) and serum in patients 1, 3, 5, 7, 9, 11, 14 and 17 days after subarachnoid hemorrhage (SAH) due to ruptured cerebral aneurysms. The PGDS level in lumbar CSF increased about two-fold at day 3 (20.85 +/- 2.71 microg/ml, mean +/- SE) and at day 5 (25.24 +/- 3.76), as compared with the level at day 1 (11.25 +/- 1.07). The CSF level gradually decreased and returned to the day 1 level at day 17. The serum PGDS level was much lower than the CSF level (0.39 +/- 0.06 at day 1) and almost unchanged until day 17. The neuron-specific enolase level in CSF, as an index of brain damage, was maximum at day 1 (29.83 +/- 7.32 ng/ml) and decreased at day 3 and at day 5 (18.28 +/- 2.65 and 11.95 +/- 1.82, respectively). These results suggest that the transient and delayed increase in the PGDS level in CSF is due to its induction of PGDS in the arachnoid membrane after SAH.

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