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Shows that chronic acetyl-L-carnitine reduces brain infarct size and glutamate outflow in ischemic rats, indicating neuroprotective effects against focal stroke damage.
Acetyl-L-carnitine (ALCAR), an endogenous water soluble molecule, is synthesized in the brain and is involved in many aspects of neuronal activity, including metabolism and neuronal membrane formation and integrity. To determine ALCAR's neuroprotective effects, focal cerebral ischemia was induced using four models of middle cerebral artery occlusion (MCAO) and treatment with 0-400 mg/kg ALCAR (i.p.) prior to MCAO. While acute doses were without effect, pretreatment with chronic ALCAR (400 mg/kg/day for five days) significantly reduced infarct size. Lower chronic ALCAR doses were not effective. Additionally, elevations in microdialysate glutamate post-MCAO were attenuated by ALCAR treatment.
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Jalal et al. (2010) studied this question.
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