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Central action of phentolamine administered intraventricularly in the rat

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Abstract

Phentolamine injected intraventricularly in unanaesthetized rats decreased their locomotor activity and antagonized the excitatory effect of intraventricularly injected noradrenaline, or amphetamine injected s.c. Phentolamine did not influence the level of noradrenaline and 5-hydroxytryptamine in the rat brain. The mechanism of observed action of phentolamine is discussed.

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References

  • Benkert, O.: Measurement of hyperactivity in rats in a dose-response curve after intrahypothalamic norepinephrine injection. Life Sci. 8, 943–948 (1969).

    Google Scholar 

  • Boissier, J. R., Simon, P., Guidicelli, J. F.: Effects centraux de quelques substances adrénoet/ou sympatholytiques. II. Action sur la motilité spontanée et potentialisation du pentobarbital. Arch. int. Pharmacodyn. 169, 312–319 (1967).

    Google Scholar 

  • — — —: Effects centraux de quelques substances adrénoet/ou sympatholytiques. III. Ptosis, catalepsis, antagonisme vis-a-vis de l'apomorphine et de l'amphetamine. Arch. int. Pharmacodyn. 171, 68–80 (1968).

    Google Scholar 

  • Brodie, B. B., Spector, S., Shore, P. A.: Interaction of drugs with norepinephrine in the rat brain. Pharmacol. Rev. 11, 548–564 (1959).

    Google Scholar 

  • Dairman, W., Gordon, R., Spector, S., Sjoerdsma, A., Udenfriend, S.: Increased synthesis of catecholamines in the intact rat following administration of α-adrenergic blocking agents. Molec. Pharmacol. 4, 457–464 (1968).

    Google Scholar 

  • Gagnon, D. J., Melville, K. I.: Alteration of centrally mediated cardiovascular manifestations by intraventricular pronethalol and phentolamine. Int. J. Neuropharmacol. 8, 587–592 (1969).

    Google Scholar 

  • Galambos, E., Pfeifer, A. K., György, L., Molnár, J.: Study on the excitation induced by amphetamine, cocaine and α-methyltryptamine. Psychopharmacologia (Berl.) 11, 122–129 (1967).

    Google Scholar 

  • Grunden, L. R.: Action of intracerebroventricular epinephrine on gross behavior, locomotor activity and hexobarbital sleeping times in rats. Int. J. Neuropharmacol. 8, 573–586 (1969).

    Google Scholar 

  • —, Katzung, B. G.: Studies on the central action of large doses of epinephrine. Fed. Proc. 23, 455 (1969).

    Google Scholar 

  • —, Marley, E.: Effects of sympathomimetic amines injected into the third cerebral ventricle in adult chickens. Neuropharmacology 9, 119–128 (1970).

    Google Scholar 

  • Herman, Z. S.: The effects of noradrenaline on rat's behaviour. Psychopharmacologia (Berl.) 16, 369–374 (1970).

    Google Scholar 

  • Johnson, E. S., Roberts, M. H. T., Sobieszek, A., Straughan, D. W.: Noradrenaline sensitive cells in rat cerebral cortex. Int. J. Neuropharmacol. 8, 549–566 (1969).

    Google Scholar 

  • Kleinrok, Z., Jagiełło-Wójtowicz, E., Żebrowska-Łupina, I.: The action on phentolamine administered intraventricularly on the blood pressure in rats. Arch. int. Pharmacodyn. (in press) (1971).

  • Litchfield, J. T., Wilcoxon, F.: A simplified method of evaluating dose-effect experiments. J. Pharmacol. exp. Ther. 96, 99–113 (1949).

    Google Scholar 

  • Maickel, R. P., Cox, R. H., Saillant, J., Miller, F. P.: A method for the determination of serotonin and norepinephrine in discrete areas of rat brain. Int. J. Neuropharmacol. 7, 275–281 (1968).

    Google Scholar 

  • Palaic, D., Page, I. H., Khairallah, P. A.: Uptake and metabolism of 14C-serotonin in rat brain. J. Neurochem. 14, 63–69 (1967).

    Google Scholar 

  • Tripod, J., Studer, A., Meier, R.: Essai de différenciation expérimentale d'une serie d'inhibiteurs du systeme nerveux central. Arch. int. Pharmacodyn. 112, 319–341 (1957).

    Google Scholar 

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Kleinrok, Z., Żebrowska-Łupina, I. Central action of phentolamine administered intraventricularly in the rat. Psychopharmacologia 20, 348–354 (1971). https://doi.org/10.1007/BF00403566

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  • DOI: https://doi.org/10.1007/BF00403566

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