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- Title
Sex differences and sex-specific regulation of motivated behavior by Melanin-concentrating hormone: a short review.
- Authors
Kuebler, Isabel R. K.; Suárez, Mauricio; Wakabayashi, Ken T.
- Abstract
Recent preclinical research exploring how neuropeptide transmitter systems regulate motivated behavior reveal the increasing importance of sex as a critical biological variable. Neuropeptide systems and their central circuits both contribute to sex differences in a range of motivated behaviors and regulate sex-specific behaviors. In this short review, we explore the current research of how sex as a biological variable influences several distinct motivated behaviors that are modulated by the melanin-concentrating hormone (MCH) neuropeptide system. First, we review how MCH regulates feeding behavior within the context of energy homeostasis differently between male and female rodents. Then, we focus on MCH's role in lactation as a sex-specific process within the context of energy homeostasis. Next, we discuss the sex-specific effects of MCH on maternal behavior. Finally, we summarize the role of MCH in drug-motivated behaviors. While these topics are traditionally investigated from different scientific perspectives, in this short review we discuss how these behaviors share commonalities within the larger context of motivated behaviors, and that sex differences discovered in one area of research may impact our understanding in another. Overall, our review highlights the need for further research into how sex differences in energy regulation associated with reproduction and parental care contribute to regulating motivated behaviors.
- Subjects
SEX (Biology); REPRODUCTION; HOMEOSTASIS; LACTATION; HORMONES; DRUG abuse; TRANSMITTERS (Communication)
- Publication
Biology of Sex Differences, 2024, Vol 15, Issue 1, p1
- ISSN
2042-6410
- Publication type
Article
- DOI
10.1186/s13293-024-00608-0