Ghrelin Receptor Gene Variations and Their Link to Obesity and Glucose Metabolism
Author Information
Author(s): Mager Ursula, Degenhardt Tatjana, Pulkkinen Leena, Kolehmainen Marjukka, Tolppanen Anna-Maija, Lindström Jaana, Eriksson Johan G., Carlberg Carsten, Tuomilehto Jaakko, Uusitupa Matti
Primary Institution: University of Kuopio, Finland
Hypothesis
Do variations in the Ghrelin receptor gene influence obesity and glucose metabolism in individuals with impaired glucose tolerance?
Conclusion
Polymorphisms in the GHSR promoter may modify changes in body weight during long-term lifestyle intervention and affect ghrelin receptor signalling through modulation of GHSR gene expression.
Supporting Evidence
- Individuals with the rs9819506-AA genotype had the lowest body weight.
- Those with the rs490683-CC genotype displayed the highest weight loss.
- Rs490683 was associated with several measures of glucose and insulin metabolism.
Takeaway
This study found that certain genetic variations can affect how much weight people lose when they change their diet and exercise, which is important for managing obesity.
Methodology
The study genotyped 7 SNPs in the GHSR gene and assessed their association with obesity and glucose metabolism in 507 middle-aged overweight individuals with impaired glucose tolerance.
Limitations
The study's moderate population size may limit the generalizability of the findings.
Participant Demographics
Middle-aged overweight individuals with impaired glucose tolerance.
Statistical Information
P-Value
0.036 for rs9819506; 0.032 for rs490683
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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