Abstract
The ontogeny and distribution in rat brain of specific succinic semialdehyde reductase is described. This enzyme is probably responsible for the synthesis of γ-hydroxybutyrate in brain. The highest activities and levels of apoenzyme are found in cerebellum, olfactory bulb, septum and median hypothalamus. During neonatal development, the enzyme activity remains stable at least until 63 days of age. As the levels of other enzymes of the GABA shunt pathway increase during this same period, this result indicates that there is a relative decrease in the reductive pathway of succinic semialdehyde catabolism during development leading to γ-hydroxybutyrate synthesis, compared to the oxidative pathway leading to succinate.
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Rumigny, J.F., Cash, C., Mandel, P. et al. Ontogeny and distribution of specific succinic semialdehyde reductase apoenzyme in the rat brain. Neurochem Res 7, 555–561 (1982). https://doi.org/10.1007/BF00965122
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DOI: https://doi.org/10.1007/BF00965122