Abstract
Inbred E1 mice are highly susceptible to convulsive seizures upon “throwing” stimulation. The strain is known to have an abnormal 5-hydroxytryptamine (5-HT) metabolism. In the study here 5-HT level, [14C]5-hydroxytryptophan (5-HTP) metabolism, MAO activity and [3H]5-HT receptor binding were examined in the cortex, brainstem and cerebellum. In the interictal period cortical and brainstem 5-HT level and [3H]5-HT receptor binding were significantly lower. In the same period cortical biosynthesized [14C]5-HT from [14C]5-HTP taken up was higher, and MAO activity was not changed.L-DOPA with MK486 induced a low threshold of seizures and decreased cortical 5-HT level. Abnormally functioning 5-HT neurones may exist in the E1 mouse cortex.
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Alexander, G. J., andKopeloff, L. M. 1970. Metrazol seizures in rats: effect ofp-chlorophenyl-alanine. Brain Res. 22:231–235.
Alexander, G. J., Kopeloff, L. M., andAlexander, P. B. 1971. Anticonvulsive effect ofp-chlorophenylalanine in audiosensitive mice. Life Sci. 10:877–882.
Ashton, D., Leysen, J. E., andWauquier, A. 1980. Neurotransmitters and receptor binding in amygdaloid kindled rats: serotonergic and noradrenergic modulatory effects. Life Sci. 27:1547–1556.
Atterwill, C. K. 1980. Lack of effect of repeated electroconvulsive shock on [3H]spiroperidol and [3H]5-hydroxytrypamine binding and cholinergic parameters in rat brain. J. Neurochem. 35:729–734.
Azzaro, A. J., Wenger, G. R., Craig, C. R., andStitzel, R. E. 1972. Reserpine-induced alterations in brain amines and their relationship to changes in the incidence of minimal electroshock seizures in mice. J. Pharmacol. Exp. Ther. 180:558–568.
Brown, D. R., andGrowdon, J. H. 1980.L-tryptophan administration potentiates serotonin-dependent myoclonic behavior in the rat. Neuropharmacology 19:343–347.
Browning, R. A., Hoffmann, W. E., andSimonton, L. 1978. Changes in seizure susceptibility after intracerebral treatment with 5,7-dihydroxytryptamine: role of serotonergic neurones. Ann. N.Y. Acad. Sci. 305:437–456.
Creese, I., andSnyder, S. H. 1978.3H-spiroperidol labels serotonin receptors in rat cerebral cortex and hippocampus. Eur. J. Pharmacol. 49:201–230.
Dailey, J. W., Battarbee, H. D., andJobe, P. C. 1982. Enzyme activities in the central nervous system of the epilepsy-prone rat. Brain Res. 231:225–230.
De La Torre, J. C., Kawanaga, H. M., andMullan, S. 1970. Seizure susceptibility after manipulation of brain serotonin. Arch. Int. Pharmacodyn. 188:298–304.
De La Torre, J. C., andMullan, S. 1970. A possible role for 5-hydroxytryptamine in drug-induced seizures. J. Pharm. Pharmacol. 22:858–859.
De Oliveira, L. F., andBretas, A. D. 1974. Effects of 5-hydroxytryptophan, iproniazid and p-chlorophenylalanine on lidocaine seizure threshold of mice. Eur. J. Pharmacol. 29:5–9.
Deakin, J. F. W., Owen, F., Cross, A. J. andDashwood, M. J. 1981. Studies on possible mechanisms of action of electroconvulsive therapy: effects of repeated electrically induced seizures on rat brain receptors for monoamines and other neurotransmitters. Psychopharmacology 73:345–349.
Doyle, R., andSellinger, O. Z. 1980. Differences in activity in cerebral methyltransferases and monoamine oxidases between audiogenic seizure susceptible and resistant mice and deermice. Pharmacol. Biochem. Behav. 3:589–591.
Garalis, E. andSourkes, T. L. 1974. Use of cerebrospinal fluid drawn at pneumoencephalography in the study of monoamine metabolism in man. J. Neurol. Neurosurg. Psychiatry 37:704–710.
Hiramatsu, M. 1981. Brain monoamine levels and E1 mouse convulsions. Folia Psychiat. Neurol. Jpn. 35:261–266.
Imaizumi, K., Ito, S., Kuzukake, G., Takizawa, T., Fujiwara, K., andTutikawa, K. 1959. The epilepsy-like abnormalities in a strain of mouse. Jikken-Dobutsu (Exp. Anim.) 8:6–10 (in Japanese).
Jobe, P. C., Picchioni, A., andChin, L. 1973. Role of brain 5-hydroxytryptamine in audiogenic seizures in the rat. Life Sci. 13:1–13.
Kellar, K. J., Cascio, C. S., Butler, J. A., andKurtzke, R. N. 1981. Differential effects of electroconvulsive shock and antidepressant drugs on serotonin-2 receptors in rat brain. Eur. J. Pharmacol. 69:515–518.
Kilian, M., andFrey, H. 1973. Central monoamines and convulsive thresholds in mice and rats. Neuropharmacology 12:681–692.
Laxer, K. D., Sourkes, T. L., Fang, T. Y., Young, S. N., Gauthier, S. G., andMissala, K. 1979. Monoamine metabolites in the CSF of epileptic patients. Neurology 29:1157–1161.
Lazarova, M., Pezewlocka, B., Mogilnicka, E., andStala, L. 1979. The effect of L-DOPA and 5-hydroxytryptophan on the pentetrazol seizures in rats after lesions of the median raphe nucleus and substantia nigra. Pol. J. Pharmacol. Pharm. 31:547–554.
Lazarova, M., andRoussinov, K. 1979. On some relationships between dopaminergic and serotonergic mechanisms in pentylenetetrazol convulsions in albino mice. Acta. Physiol. Pharmacol. Bulg. 5:67–74.
Leino, E., MacDonald, E., Airaksinen, M., andPiekkinen, P. J. 1980. Homovanillic acid and 5-hydroxyindoleacetic acid levels in cerebrospinal fluid of patients with progressive myoclonus epilepsy. Acta. Neurol. Scand. 62:41–54.
Leysen, J. E., Niemegeers, C. J. E., Tollenaere, J. P., andLaduron, P. M. 1978. Serotonergic component of neuroleptic receptors. Nature 272:168–171.
Lints, C. E., Willott, J. E., Sze, P. Y., andNenja, L. H. 1980. Inverse relationship between whole brain monoamine levels and audiogenic seizure susceptibility in mice. Pharmacol. Biochem. Behav. 12:385–388.
Lowry, O. H., Rosebrough, N. J., Farr, A. L., andRandall, R. J. 1951. Protein measurement with the Folin phenol reagent. J. Biol. Chem. 193:265–275.
Luscombe, G., Genner, P., andMarsden, C. D. 1982. Myoclonus in guinea pigs is induced by indole-containing but not piperazine-containing 5-HT agonists. Life Sci. 30:1487–1494.
Matz, D. R., Rolf, L. H., andBrune, G. G. 1978. Serotonin metabolism with idiopathic grand mal seizures. J. Neurol. 219:283–287.
Matz, D. R., Rolf, L. H., andBrune, G. G. 1980. 5-Hydroxytryptamine and idiopathic grandmal seizures. Pages 363–366,in Canger, R., Angeleri, F. andPenry, J. K. (eds.), Advances in Epileptology, XIth Epilepsy International Symposium, Raven Press, New York.
Miyakoshi, N., Tanaka, M., andShindo, H. 1980. Autoradiographic studies on distribution ofL-3,4-dihydroxyphenylalanine(L-DOPA)14C andL-5-hydroxytryptophan(L-5-HTP)-14C in the cat brain. Jpn. J. Pharmacol. 30:795–805.
Munkenbeck, K. E., andSchwark, W. S. 1982. Serotonergic mechanisms in amygdaloidkindled seizures in the rat. Exp. Neurol. 76:246–253.
Nasello, A. G., andMarichich, E. S. 1973. Effects of some cholinergic, adrenergic and serotonergic compounds, glutamic acid and GABA on hippocampal seizures. Pharmacology 9:233–239.
Nellhaus, G. 1968. Relationship of brain serotonin to convulsions. Neurology 18:298–299.
Screiber, R. A., andSchlesinger, K. 1971. Circadian rhythms and seizure susceptibility: relation to 5-hydroxytryptamine and norepinephrine in brain. Physiol. Behav. 6:635–640.
Schreiber, R. A. andSchlesinger, K. 1972. Circadian rhythms and seizure susceptibility: Effects of manipulations of light cycles on susceptibility to audiogenic seizures and on levels of 5-hydroxytryptamine and norepinephrine in brain. Physiol. Behav. 8:699–703.
Shaywitz, B. A., Cohen, D. J., andBowers, M. B. 1975. Reduced cerebrospinal fluid 5-hydroxyindoleacetic acid and homovanillic acid in children with epilepsy. Neurology 25:72–79.
Sparks, D. L., andBuckholtz, N. S. 1980. Effects of 6-methoxy-1,2,3,4-tetrahydro-β-carboline(6-MeO-THβC) on audiogenic seizures in DBA/2J mice. Pharmacol. Biochem. Behav. 12:119–124.
Stern, W. C., Ferbes, W. B., Resnick, O., andMorgane, P. J. 1974. Seizure susceptibility and brain amine levels following protein malnutrition during development in the rat. Brain Res. 79:375–384.
Strolin-Benedetti, M., andKeane, P. E. 1980. Differential changes in monoamine oxidase A and B activity in the aging rat brain. J. Neurochem. 35:1026–1032.
Sugiu, R. 1963. Pathophysiological study of the ep-mouse. Okayama-Igakkai-Zasshi 75:145–188 (in Japanese).
Suzuki, J. 1976. Paroxysmal discharges in the electroencephalogram of the E1 mouse. Experientia 32:336–338.
Suzuki, J., andNakamoto, Y. 1977. Seizure patterns and electroencephalograms of E1 mouse. Electroencephalogr. Clin. Neurophysiol. 43:299–311.
Truscott, T. C., 1975. Effects of phenylalanine and 5-hydroxytryptophan on seizure severity in mice. Pharmacol. Biochem. Behav. 3:939–941.
Uzbekov, M. G., Murphy, S., andRose, S. P. R. 1979. Ontogenesis of serotonin ‘receptors’ in different regions of rat brain. Brain Res. 168:195–199.
Wada, J. A. 1961. Epileptogenic cerebral electrical activity and serotonin levels. Science 134:1688–1690.
Wada, J. A., Balzamo, E., Meldrum, B. S., andNaquet, R. 1972. Behavioural and electrographic effects ofL-5-hydroxytryptophan andD,l-parachlorophenylalanine on epileptic senegalese baboon (papio papio). Electroencephalogr. Clin. Neurophysiol. 33:520–526.
Wenger, G. R., Stitzel, R. E., andCraig, C. R. 1973. The role of biogenic amines in the reserpine-induced alteration of minimal electroshock seizure thresholds in the mouse. Neuropharmacology 12:693–703.
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Hiramatsu, M. Brain 5-hydroxytryptamine level, metabolism, and binding in E1 mice. Neurochem Res 8, 1163–1175 (1983). https://doi.org/10.1007/BF00964930
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DOI: https://doi.org/10.1007/BF00964930