Learning and Memory Disorders
Animals treated with free glutamic acid as neonates or in the first 12 days of life suffer possible learning deficits either immediately or in later life (1-10).
1. Araujo, P.E., and Mayer J. Activity increase associated with obesity induced by monosodium glutamate in mice. Am J Physiol 225: 764-765, 1973.
2. Nemeroff, C.B., Konkol, R.J., Bissette, G., Youngblood, W., Martin, J.B., Brazeau, P., Rone, M.S., Prange, A.J. Jr., Breese, G.R. and Kizer, J.S. Analysis of the disruption in hypothalamic-pituitary regulation in rats treated neonatally with monosodium glutamate (MSG): Evidence for the involvement of tuberoinfundibular cholinergic and dopaminergic systems in neuroendocrine regulation. Endocrinology 101: 613-622, 1977.
3. Pizzi, W.J., Barnhart, J.E., and Fanslow, D.J. Monosodium glutamate administration to the newborn reduces reproductive ability in female and male mice. Science 196: 452-454, 1977.
4. Pradhan, S.N., Lynch, J.F., Jr. Behavioral changes in adult rats treated with monosodium glutamate in the neonatal state. Arch Int Pharmacodyn Ther 197: 301-304, 1972.
5. Iwata, S., Ichimura, M., Matsuzawa, Y., Takasaki, Y., and Sasaoka, M. Behavioral studies in rats treated with monosodium L-glutamate during the early states of life. Toxicol Lett 4: 345-357, 1979.
6. Vorhees, C.V., Butcher, R.E., Brunner, R.L., and Sobotka, T.J. A developmental test batter for neurobehavioral toxicity in rats: a preliminary analysis using monosodium glutamate, calcium carrageenan, and hydroxyurea. Toxicol Appl Pharm 50: 267-282, 1979.
7. Vogel, J.R., and Nathan, B.A. Learned taste aversions induced by high doses of monosodium L-glutamate. Pharmacol Biochem Behav 3: 935-937, 1975.
8. Berry, H.K., and Butcher, R.E. Biochemical and behavioral effects of administration of monosodium glutamate to the young rat. Soc Neurosci 3rd Ann Mtg. S.D. 5/8/1973.
9. Berry, H.K., Butcher, R.E., Elliot, L.A., and Brunner, R.L. The effect of monosodium glutamate on the early biochemical and behavioral development of the rat. Devl Psychobiol 7: 165-173, 1974.
10. Weiss, L.R., Reilly, J.F., Williams, J., and Krop, S. Effects of
prolonged monosodium glutamate and other high salt diets on arterial
pressure and learning ability in rats. Toxicol Appl Pharmacol 19:
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IF MSG ISN'T HARMFUL, WHY IS IT HIDDEN?