Journal
DRUG AND ALCOHOL DEPENDENCE
Volume 178, Issue -, Pages 70-74Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.drugalcdep.2017.04.011
Keywords
Methamphetamine; Female; Self-administration; Dopamine transporter; Brain-derived neurotrophic factor
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Funding
- National Institute of Health, National Institute on Drug Abuse [DA036012]
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Background: Methamphetamine (METH) is an addictive substance that is used in both males and females. Few preclinical studies have focused on understanding sex-differences in the neurochemical consequences of contingent METH. The purpose of the current study was to investigate potential sex-differences in the neurochemical consequences of METH self-administration. Methods: Male and female adult rats were given extended access to METH or saline self-administration for 7 d. Following self-administration, hippocampal brain-derived neurotrophic factor (BDNF) and striatal dopamine transporter (DAT) were assessed via western blotting. Results: Male and female rats had similar METH intake. METH self-administration reduced striatal DAT in both sexes, but only males that self-administered METH had elevated hippocampal BDNF levels. Conclusions: Sex-differences exist in the neurochemical consequences of METH self-administration. These differences may lead to sex-specific vulnerability to the toxic effects of METH.
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