Metabolic mechanisms of species-specific developmental tempo.
Level 5 - mechanism / opinion, no new human data
Narrative review of basic biological mechanisms without new clinical data or systematic review methodology.
PubMed 38906137 · doi:10.1016/j.devcel.2024.05.027
What was done
This narrative review summarizes recent research on the cellular mechanisms that set species-specific developmental tempo, focusing on pathways such as intermediary metabolism, mitochondrial activity, protein metabolism, proteostasis, and chromatin remodeling across systems like somitic cell oscillations and neuronal development.
What was found
The abstract reports qualitative observations and provides no numerical data or quantitative effect estimates. It describes intermediary and mitochondrial metabolism as key regulators coordinating developmental transitions and timing variations across species.
Why it matters
Understanding the metabolic basis of developmental timing provides insight into how species-specific evolutionary differences in organ size, function, and organismal fitness arise.
Limits
The review relies on non-human bench and comparative developmental biology models, without a systematic review methodology, quantitative data synthesis, or direct human clinical evidence.