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Psychoneuroimmunological Effects of Morphine and the Immunoprotection of Ganoderma Polysaccharides Peptide in Morphine-dependent Mice

Lu Zheng-Wu(Department of Pharmacology, School of Basic Medical Sciences, Beijing Medical University, Beijing 100083)  
Different kinds of single, multiple, acute or chronic administrations of morphinized animal models were established, with which a series of experiments in both in vivo and in vitro systems as well as molecular levels were pharmacologically designed to investigate the psychoneuroimmunological effects of morphine(Mor)and the immunoprotection of Ganoderma polysaccharides peptide(GPP) in Mor-dependent mice.It was first discovered that both c-myb and c-myc e mRNA expression in splenocytes of repititive Mor-treated mice were detected to be significantly decreased, and that GPP could induce restoration of several immunologic parameters depressed by Mor treatment to or even beyond normal levels.This provides the experimental animal evidence that immune response modifiers such as GPP could be of potential application in controlling abuse of opiates-induced immunodeficiency.
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