What does this research mean for the field?

BDNF-related signaling serves as a critical interface in brain-liver communication, linking metabolic dysfunction with the development of anxiety and depression within a broader neuro-metabolic network. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the role of brain-derived neurotrophic factor (BDNF) and TrkB signaling in bidirectional brain–liver communication and identify mechanisms linking metabolic syndrome with anxiety and depression.

August 28, 2026Reviews in the NeurosciencesOpen Access

BDNF-related brain–liver communication in metabolic syndrome: implications for anxiety and depression

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Authors

CLChang Liu CSChen Sun CKChengxia Kan

Discussion

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Overview

Narrative review uncovers bidirectional BDNF signaling between the brain and liver in metabolic syndrome, highlighting mechanistic links to co-occurring anxiety and depression.

Key Points

To evaluate the role of brain-derived neurotrophic factor (BDNF) and TrkB signaling in bidirectional brain–liver communication and identify mechanisms linking metabolic syndrome with anxiety and depression.
Synthesized molecular, physiological, and circuit-level evidence on central BDNF-TrkB signaling, autonomic innervation, and hepatic glucose regulation.
Assessed multisystem neuro-metabolic pathways, including adipose signaling, inflammatory cascades, the hypothalamic-pituitary-adrenal axis, and glucagon-like peptide-1 interactions.
Central BDNF-TrkB pathways actively regulate feeding, energy expenditure, and hepatic glucose production, whereas peripheral metabolic dysfunction impairs hypothalamic and hippocampal BDNF signaling.
Chronic stress, anxiety, and depression converge with metabolic syndrome through shared hypothalamic-pituitary-adrenal axis dysregulation and altered neuroplasticity across a multisystem network.
The distinct functional contributions of circulating BDNF, liver-specific autonomic pathways, and GLP-1 interactions remain poorly defined, requiring tissue-specific manipulation and longitudinal human studies.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a916ea0d15324a1df3aa7e0 https://doi.org/10.1515/revneuro-2026-0110

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August 28, 2026Reviews in the NeurosciencesOpen Access

BDNF-related brain–liver communication in metabolic syndrome: implications for anxiety and depression

View Full Paper

Ask AI

Bookmark

Authors

CLChang Liu CSChen Sun CKChengxia Kan

Discussion

Member takes

Overview

Narrative review uncovers bidirectional BDNF signaling between the brain and liver in metabolic syndrome, highlighting mechanistic links to co-occurring anxiety and depression.

Key Points

To evaluate the role of brain-derived neurotrophic factor (BDNF) and TrkB signaling in bidirectional brain–liver communication and identify mechanisms linking metabolic syndrome with anxiety and depression.
Synthesized molecular, physiological, and circuit-level evidence on central BDNF-TrkB signaling, autonomic innervation, and hepatic glucose regulation.
Assessed multisystem neuro-metabolic pathways, including adipose signaling, inflammatory cascades, the hypothalamic-pituitary-adrenal axis, and glucagon-like peptide-1 interactions.
Central BDNF-TrkB pathways actively regulate feeding, energy expenditure, and hepatic glucose production, whereas peripheral metabolic dysfunction impairs hypothalamic and hippocampal BDNF signaling.
Chronic stress, anxiety, and depression converge with metabolic syndrome through shared hypothalamic-pituitary-adrenal axis dysregulation and altered neuroplasticity across a multisystem network.
The distinct functional contributions of circulating BDNF, liver-specific autonomic pathways, and GLP-1 interactions remain poorly defined, requiring tissue-specific manipulation and longitudinal human studies.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a916ea0d15324a1df3aa7e0 https://doi.org/10.1515/revneuro-2026-0110

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