Adipose tissue expandability, lipotoxicity and the Metabolic Syndrome--an allostatic perspective.
Level 5 - mechanism / opinion, no new human data
Narrative review and theoretical framework without primary empirical data.
PubMed 20056169 · doi:10.1016/j.bbalip.2009.12.006
What was done
This is a narrative review and theoretical perspective discussing the "adipose tissue expandability hypothesis" and applying an allostatic framework to explain the link between positive energy balance, adipose dysfunction, lipotoxicity, and type 2 diabetes.
What was found
The abstract reports no empirical or numerical findings. Conceptually, it outlines that each individual has a defined threshold for adipose tissue expansion influenced by genetic and environmental factors. Exceeding this limit prevents efficient energy storage in adipose tissue, triggering ectopic lipid accumulation in non-adipose tissues and inducing lipotoxic effects such as insulin resistance, apoptosis, and inflammation.
Why it matters
It provides an explanatory framework for why metabolic complications such as type 2 diabetes can occur across a wide range of body mass indices, shifting focus from absolute obesity to individual adipose storage capacity.
Limits
The paper is a non-systematic theoretical review with no original experimental or clinical data. Specific clinical thresholds, validation cohorts, and quantitative effect sizes are not reported.
Cited by
- supports Adipose tissue becomes pro-inflammatory when it exceeds a certain threshold.