Energy metabolism in the liver.
Level 5 - mechanism / opinion, no new human data
Narrative review describing biochemical mechanisms without new empirical human data
PubMed 24692138 · doi:10.1002/cphy.c130024
What was done
This narrative review summarizes physiological mechanisms and regulatory pathways controlling liver energy metabolism across fed and fasted states, including hormonal signaling, neuronal inputs, and transcription factor regulation.
What was found
The abstract reports no numerical data or empirical effect sizes. It describes standard metabolic pathways: glycolysis and de novo lipogenesis in the fed state; glycogenolysis, gluconeogenesis, and ketogenesis during fasting; and regulation via insulin, glucagon, the autonomic nervous system, and key transcription factors (CREB, FOXO1, ChREBP, SREBP, PGC-1α, CRTC2).
Why it matters
It outlines fundamental biochemical pathways and regulatory nodes in hepatic substrate handling that underlie metabolic disorders such as insulin resistance, diabetes, and nonalcoholic fatty liver disease.
Limits
As a narrative review, it presents mechanistic overviews without original empirical data, quantitative synthesis, or systematic search methodology.
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