A new study has revealed some of the health benefits associated with coffee, suggesting that its effects may be partly due to the interaction of its compounds with a protein that plays a role in the stress response and aging.
Decades of research indicate that coffee consumption is associated with increased life expectancy and a reduced risk of several chronic diseases. Population studies have also shown that coffee drinkers are less likely to develop age-related conditions such as metabolic disorders, certain cancers, Parkinson's disease, dementia, and heart disease.
This link is believed to be partly due to coffee containing active compounds such as polyphenols and flavonoids, which possess antioxidant and anti-inflammatory properties, helping to protect cells from damage and aging. However, the precise mechanism by which these compounds work remains not fully understood.
The recent study explains that coffee may affect the body through a protein known as NR4A1, a cellular receptor that regulates the body's response to stress and damage, and is important in aging processes and general health.
Researchers say this protein is involved in regulating gene activity when the body is under stress, and also plays a role in vital processes such as inflammation, metabolism and tissue repair, which are processes directly linked to aging diseases.
In this context, Steven Seif, one of the authors of the study published in the journal Nutrients, explained: "Some of the health effects of coffee may be related to how its compounds interact with this receptor, which helps protect the body from damage caused by stress."
He added: "When any tissue is damaged, NR4A1 works to reduce this damage, but in its absence the problem worsens."
The research team found that several compounds in coffee, including caffeic acid, can bind to the NR4A1 protein and influence its activity within cells. Laboratory experiments also showed that these compounds may help reduce cell damage and slow the growth of cancer cells; however, these effects disappear when the protein is removed from the cells.
According to the researchers, these results suggest that part of the health benefits of coffee may be related to the activation of this receptor, although coffee also affects multiple other biological pathways.
Researchers emphasize that the effect of coffee on the body is complex and cannot be reduced to a single mechanism, as there are several receptors and pathways that contribute to these benefits.
They hope that future studies will help in a deeper understanding of this future, and the possibility of targeting it with more precise and effective medical compounds.
