Weinberger, S B; Gehrig, C A; Martinez Jr, J L (1989) DPen2-[DPen5]enkephalin, a delta opioid receptor-selective analog of [Leu]enkephalin, impairs avoidance learning in an automated shelf-jump task in rats. Regul Pept 26:323-9
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Martinez Jr, J L; Weinberger, S B; Schulteis, G (1988) Enkephalins and learning and memory: a review of evidence for a site of action outside the blood-brain barrier. Behav Neural Biol 49:192-221
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Weinberger, S B; Schulteis, G; Fernando, A G et al. (1988) Decreased locomotor activity produced by repeated, but not single, administration of murine-recombinant interferon-gamma in mice. Life Sci 42:1085-90
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Weinberger, S B; Martinez Jr, J L (1988) Differential effects on active avoidance performance and locomotor activity of two major enkephalin metabolites, tyr-gly-gly and des-tyr-[leu]enkephalin. Life Sci 43:769-76
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Weinberger, S B; Martinez Jr, J L (1988) Characterization of hydrolysis of [leu]enkephalin and D-ala2-[L-leu]enkephalin in rat plasma. J Pharmacol Exp Ther 247:129-35
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Martinez Jr, J L; Schulteis, G; Janak, P H et al. (1988) Behavioral assessment of forgetting in aged rodents and its relationship to peripheral sympathetic function. Neurobiol Aging 9:697-708
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Martinez Jr, J L; Weinberger, S B (1988) Enkephalin hydrolysis in plasma is highly correlated with escape performance in the rat. Behav Neurosci 102:404-8
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Martinez Jr, J L; Weinberger, S B (1987) Memory traces: how to increase and decrease their strength. Int J Neurol 21-22:33-50
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