Brain-Derived Neurotrophic Factor (BDNF) and Sex Differences in Metabolic Regulation

Area of Science:

• Neuroscience
• Metabolism
• Endocrinology

Background:

• Historically, male rodents were primary models in research, with findings generalized to both sexes.
• Emerging evidence highlights sexual dimorphism in phenotypes, necessitating investigation into sex-specific mechanisms.
• Hypothalamic brain-derived neurotrophic factor (BDNF) is increasingly recognized for its role in metabolic regulation with sex-specific patterns.

Purpose of the Study:

• To conduct a narrative review synthesizing evidence on the involvement of hypothalamic BDNF in metabolic sexual dimorphism.
• To consolidate current knowledge on how BDNF contributes to sex-specific metabolic functions and dysfunctions.

Main Methods:

• Narrative review of existing experimental and observational studies.
• Analysis of literature focusing on hypothalamic BDNF and its role in metabolic processes across sexes.

Main Results:

• Accumulated data demonstrate BDNF's significant involvement in regulating metabolic processes in a sexually dimorphic manner.
• Evidence points to specific physiological and pathological pathways influenced by sex-specific BDNF activity in the hypothalamus.
• Hypothalamic BDNF is implicated in controlling sex-specific metabolic functions.

Conclusions:

• Hypothalamic BDNF is a critical factor in metabolic sexual dimorphism.
• BDNF represents a potential therapeutic target for addressing metabolic abnormalities that differ between males and females.
• Further research into BDNF's sex-specific roles can inform novel interventions for metabolic diseases.