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Different effects of chronic nicotine treatment regimens on body weight and tolerance in the rat

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  1. Article

    Behavioral and Electrophysiological Evidence for Opioid Tolerance in Adolescent Rats

    Morphine and other opiates are successful treatments for pain, but their usefulness is limited by the development of tolerance. Given that recent studies have observed differential sensitivity to drugs of abus...

    Susan L Ingram, Erin N Fossum, Michael M Morgan in Neuropsychopharmacology (2007)

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  2. Article

    Tolerance to Repeated Morphine Administration Is Associated with Increased Potency of Opioid Agonists

    Tolerance to the pain-relieving effects of opiates limits their clinical use. Although morphine tolerance is associated with desensitization of μ-opioid receptors, the underlying cellular mechanisms are not under...

    Susan L Ingram, Tara A Macey, Erin N Fossum, Michael M Morgan in Neuropsychopharmacology (2008)

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  3. Article

    Contribution of Adenylyl Cyclase Modulation of Pre- and Postsynaptic GABA Neurotransmission to Morphine Antinociception and Tolerance

    Opioid inhibition of presynaptic GABA release in the ventrolateral periaqueductal gray (vlPAG) activates the descending antinociception pathway. Tolerance to repeated opioid administration is associated with u...

    Erin N Bobeck, QiLiang Chen, Michael M Morgan, Susan L Ingram in Neuropsychopharmacology (2014)

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