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The thrifty phenotype hypothesis revisited.
A A Vaag1, L G Grunnet, G P Arora
1Department of Endocrinology, Rigshospitalet (7652), Blegdamsvej 9, 2100, Copenhagen Ø, Denmark. allan.vaag@rh.regionh.dk
Diabetologia
|May 31, 2012
Summary
The thrifty phenotype hypothesis suggests fetal development influences type 2 diabetes risk. This concept, initially doubted, is now supported, offering a framework for intergenerational prevention of metabolic syndrome and cardiovascular disease.
Area of Science:
- Endocrinology
- Developmental Biology
- Epidemiology
Background:
- The 'thrifty phenotype hypothesis' proposed fetal programming's role in type 2 diabetes, metabolic syndrome, and cardiovascular disease (CVD).
- Initial skepticism has given way to confirmation through epidemiological, animal, and physiological studies.
Purpose of the Study:
- To review the evidence supporting the thrifty phenotype hypothesis.
- To explore its implications for understanding type 2 diabetes and related diseases.
- To highlight its potential for intergenerational prevention strategies.
Main Methods:
- Review of pioneering papers and subsequent epidemiological, animal experimental, and human integrative physiological studies.
- Analysis of genetic associations with type 2 diabetes and low birthweight.
- Evaluation of current prevention and treatment strategies for type 2 diabetes and CVD.
Main Results:
- The thrifty phenotype hypothesis is now a recognized framework, supported by extensive research.
- Low birthweight's association with type 2 diabetes is largely non-genetic.
- Current adult-focused prevention and intensive glucose control show limitations in curbing the diabetes epidemic and CVD mortality.
Conclusions:
- Developmental programming offers a plausible explanation for widespread organ dysfunction in type 2 diabetes and metabolic syndrome.
- The thrifty phenotype hypothesis provides a promising conceptual basis for sustainable, intergenerational prevention of type 2 diabetes.
- Rethinking prevention strategies beyond adult lifestyle factors and glucose control is crucial.
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