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Bertazzo, A. et al.

The carbochromene derivative AD6 reduces the TxB2/6-keto-PGF1 alpha ratio in cerebral cortex during hypoxia and recovery and leukotriene synthesis in brain tissue, in the rat.

Pretreatments of rats with the Carbochromene derivative AD6 (4 mg/kg i.p., 2 h before sacrifice) resulted in elevation of brain levels of 6-keto-PGF1 alpha in cerebral cortex under physiological conditions, had no effect on levels of TxB2 and 6-Keto-PGF1 alpha at 30 min of hypoxia (respiration of 5% O2 in N2) and prevented the accumulation of TxB2 occurring in brain at 5 min of recovery after hypoxia. In addition, the accumulation of LTC4 and B4 in brain slices incubated in the presence of the Ca++ ionophore A23187 and arachidonic acid, was reduced in samples obtained from pretreated rats. The drug, thus, had favourable effects on the 6-keto-PGF1 alpha/TxB2 ratio in normal conditions, as well as in conditions of altered oxygen supply. In addition it reduced the formation of compounds, the leukotrienes, which may exert pro-inflammatory activities on the cerebral microcirculation.[1]

References

The carbochromene derivative AD6 reduces the TxB2/6-keto-PGF1 alpha ratio in cerebral cortex during hypoxia and recovery and leukotriene synthesis in brain tissue, in the rat. Bertazzo, A., Petroni, A., Sarti, S., Colombo, C., Galli, C. Prostaglandins (1988) [Pubmed]

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