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Table 2 Critical steps in the brain slice experiment

From: The brain slice method for studying drug distribution in the CNS

Experimental stages

Critical steps

Preparatory steps

Control the pH, osmolarity and oxygenation of the aECF

Take into account the pKa values of the compounds when selecting the drugs to be investigated in one cassette

Do not take longer than 1 minute to extract the brain

Keep cold-chain during the brain slicing procedure

Preserve the brain slices in ice-cold oxygenated aECF before starting the incubation

Incubation

Keep oxygenation, temperature and stirring constant during the incubation

Preparation of the samples for bioanalysis

Make sure all minor debris from the brain slices has sedimented before taking the aECF samples after the 5 h incubation