PMID- 29158111 OWN - NLM STAT- MEDLINE DCOM- 20180807 LR - 20180807 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 339 DP - 2018 Feb 26 TI - Brain-derived neurotrophic factor (BDNF) determines a sex difference in cue-conditioned alcohol seeking in rats. PG - 73-78 LID - S0166-4328(17)31617-0 [pii] LID - 10.1016/j.bbr.2017.11.019 [doi] AB - Alcohol use disorder is a detrimental addictive disease that develops through prolonged ethanol exposure and regular intoxication. However, the changes in the underlying neurobiology leading to alcohol addiction remain unclear. Brain-Derived Neurotrophic Factor (BDNF) is implicated in substance abuse disorders including alcoholism. As the vast majority of previous animal model studies have concentrated on males only, the aim of this study was to determine whether endogenous BDNF mediates alcohol seeking in a sex-specific manner. We used an operant self-administration paradigm where the animals were trained in operant chambers to self-administer a 10% ethanol solution, and compared male and female BDNF heterozygous (HET) and wildtype (WT) rats. Over several weeks, the animals progressed through acquisition, progressive ratio, extinction, and reinstatement phases. There were no significant sex or genotype differences in the number of alcohol-paired lever presses during acquisition, progressive ratio and extinction. However, a significant difference between male and female WT rats following alcohol-primed reinstatement was completely absent in BDNF HET rats suggesting a role of BDNF in sex differences in alcohol seeking after abstinence. Female BDNF HET rats showed significantly higher number of alcohol-paired lever presses during reinstatement than female WT controls. These findings suggest that BDNF regulatory pathways are involved in sex differences in reinstatement of alcohol intake and emphasize the need to include both male and female animals to explore sex-specific interactions in addiction neurocircuitry. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Hogarth, Samuel J AU - Hogarth SJ AD - School of Psychology and Public Health, Department of Psychology, La Trobe University, Bundoora, Australia. FAU - Jaehne, Emily J AU - Jaehne EJ AD - School of Psychology and Public Health, Department of Psychology, La Trobe University, Bundoora, Australia. FAU - van den Buuse, Maarten AU - van den Buuse M AD - School of Psychology and Public Health, Department of Psychology, La Trobe University, Bundoora, Australia; Department of Pharmacology, University of Melbourne, Australia; The College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Australia. Electronic address: m.vandenbuuse@latrobe.edu.au. FAU - Djouma, Elvan AU - Djouma E AD - School of Life Sciences, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, Australia. LA - eng PT - Journal Article DEP - 20171121 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Brain-Derived Neurotrophic Factor) RN - I5Y540LHVR (Cocaine) SB - IM MH - Animals MH - Behavior, Addictive/*physiopathology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cocaine/administration & dosage/*pharmacology MH - Conditioning, Operant/drug effects MH - Extinction, Psychological/drug effects MH - Rats, Sprague-Dawley MH - Self Administration MH - *Sex Characteristics MH - Substance-Related Disorders OTO - NOTNLM OT - Alcohol seeking OT - Brain-derived neurotrophic factor OT - Extinction OT - Reinstatement OT - Sex differences EDAT- 2017/11/22 06:00 MHDA- 2018/08/08 06:00 CRDT- 2017/11/22 06:00 PHST- 2017/09/28 00:00 [received] PHST- 2017/11/14 00:00 [revised] PHST- 2017/11/16 00:00 [accepted] PHST- 2017/11/22 06:00 [pubmed] PHST- 2018/08/08 06:00 [medline] PHST- 2017/11/22 06:00 [entrez] AID - S0166-4328(17)31617-0 [pii] AID - 10.1016/j.bbr.2017.11.019 [doi] PST - ppublish SO - Behav Brain Res. 2018 Feb 26;339:73-78. doi: 10.1016/j.bbr.2017.11.019. Epub 2017 Nov 21.