April 28, 2024

Double Take: How Twins Are Unlocking the Molecular Mysteries of Obesity

” Obesity seems more complex than simple consumption of food. Our work suggests theres a vulnerability for this disease and molecular markers that are altering for it,” said Michael Skinner, a WSU professor of biology and corresponding author of the study published in the journal Epigenetics.
Epigenetic Signature and Obesity
The study concentrated on twins to assist get rid of the role of genetics and rather concentrate on epigenetics, molecular processes that are separate from DNA but influence how genes are revealed. The truth that the epigenetic signature was discovered in cheek cells instead of fat cells also recommends that the obesity signature is likely discovered throughout the human system.
The signatures systemic nature likewise recommends that something may have occurred early in one twins life that triggered obesity susceptibility, Skinner included. Its likewise possible that it was inherited by one twin and not the other.
For this research study, Skinner worked with lead author Glen Duncan, director of the Washington State Twin Registry based at WSU, to identify 22 twin sets, both fraternal and identical, who were discordant for obesity: one sibling had a body mass index of 30 or higher, the standard for obesity defined by the Centers of Disease Control and Prevention, while the other brother or sister remained in the normal range of 25 and below.
The research study group evaluated cells from cheek swabs supplied by the twins. In the cells of the twin siblings who were overweight, they discovered comparable epigenetic modifications to DNA methylation regions, areas where molecular groups made of methane connect to DNA, managing gene expression or turning genes on or off.
Future Research and Prevention
To develop a trusted biomarker test for obesity, the research study would need to be carried out on a larger scale.
The objective would have the ability to recognize individuals earlier in life before they end up being overweight so doctor may assist produce interventions such as way of life modifications, medication, or both, said Duncan.
” Ultimately we would like to have some type of preventative step instead of our usual method which is treatment,” he stated. “Its an easy fact that its better to prevent an illness than to attempt to treat it after you have it.”.
Referral: “Epigenome-wide association research study of systemic results of obesity susceptibility in human twins” by Glen E. Duncan, Ally Avery, Millissia Ben Maamar, Eric E. Nilsson, Daniel Beck and Michael K. Skinner, 23 October 2023, Epigenetics.DOI: 10.1080/ 15592294.2023.2268834.
This research study was funded by the John Templeton Foundation and the National Institutes of Health.

Washington State University researchers have actually found an epigenetic signature in the cheek cells of overweight twins that varies from their non-obese siblings, indicating a molecular predisposition to obesity.
Scientists have found molecular markers in cheek cells that might predict weight problems, possibly permitting early interventions and a shift towards preventative healthcare steps.
A vulnerability to put on weight may be composed into molecular procedures of human cells, according to a research study from Washington State University.
The proof-of-concept study with a set of 22 twins found an epigenetic signature in buccal or cheek cells appearing only for the twins who were overweight compared to their thinner brother or sisters. With more research, the findings might cause an easy cheek swab test for an obesity biomarker and allow earlier prevention techniques for a condition that affects 50% of U.S. adults, the researchers stated.