Researchers identify coffee compounds linked to healthier cells and reduced damage processes.
A new study suggests that drinking several cups of coffee each day may do more than help people wake up. Researchers at Texas A&M University say naturally occurring compounds found in brewed coffee could also protect the body from the effects of aging and disease. Their findings, published in the journal Nutrients, offer a more specific reason why many past studies have connected regular coffee drinking with better long-term health. Earlier research has connected moderate coffee intake with lower rates of several long-term health problems with the current project narrowing in on what actually takes place inside cells.
The team examined a receptor called NR4A1. This receptor plays a part in how the body responds to stress, repairs damaged tissue, controls metabolism, and manages inflammation. Robert S. Chapkin, a study collaborator and distinguished fellow with the American Society for Nutrition, said coffee contains small natural compounds that fit into the receptor. Once those compounds connect with the receptor, they can change how certain genes are controlled inside cells, which may explain why regular coffee drinking has been linked with a lower chance of developing several diseases that become more common with age.
The study found that compounds such as caffeic acid, chlorogenic acid, and ferulic acid attached to the receptor during lab tests. These substances are naturally found in brewed coffee and belong to a group of plant compounds often connected with health benefits. The researchers found that these compounds helped reduce damage inside cells and slowed the growth of cancer cells during laboratory experiments. By the same token, when scientists removed the NR4A1 receptor from the cells, those protective effects disappeared. That result suggested the receptor plays an important part in the process.
Dr. Stephen Safe, a distinguished professor at the Texas A&M College of Veterinary Medicine and Biomedical Sciences, said the receptor normally responds when tissue is damaged. Without it, the damage becomes worse, making the receptor an important part of the body’s natural defense system.
Another finding from the study is that caffeine itself may not be the main reason coffee appears to support good health. The researchers said other natural substances found in coffee seemed to have a stronger effect on the receptor than caffeine. That means many of coffee’s possible health benefits could come from the drink’s plant-based compounds rather than its stimulating effects.
Scientists are continuing to study NR4A1 because of its possible role in several diseases, including cancer. Safe’s research team is now testing man-made compounds designed to activate the receptor more effectively than those found naturally in foods and drinks. The long-term hope is that this work could one day lead to new, more effective medications. For now, the findings add another piece to the growing body of research suggesting that moderate coffee drinking may be connected with better overall health. Researchers say much more study is needed before any medical recommendations can be based on these findings alone.
Sources:
Coffee found to have startling effect on aging, says new study
Coffee doesn’t just wake you up — it may help protect your body from aging
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