Exercise could be a key to tackling fatty liver disease

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In a world where liver health is becoming a growing concern, a recent study has brought some hopeful news.

This research, conducted using animal models and published in the journal Metabolism, suggests that regular aerobic exercise, like walking or cycling, could be a crucial tool in fighting non-alcoholic fatty liver disease.

This condition is the most common liver disease globally, affecting nearly a quarter of people worldwide. It’s a condition that often carries a social stigma, making it a challenging issue for many.

The study, led by Professor María Isabel Heràndez-Alvarez from the University of Barcelona, in collaboration with others, sheds light on how exercise can impact this disease.

Non-alcoholic fatty liver disease, or NAFLD, is characterized by a high amount of fat stored in liver cells. This condition, if not managed properly, can lead to serious health complications.

The team’s findings are promising. They discovered that aerobic exercise, which means any physical activity that increases your heart rate over a period, helps break down fats in the liver.

This is because the exercise leads to a reduction in the size of lipid droplets – tiny storage spots for fats in liver cells. By making these droplets smaller, the severity of the fatty liver disease can be reduced.

The researchers explain that the benefits of exercise come from the way it changes the relationship between these fat droplets and the mitochondria.

Mitochondria are like tiny powerhouses inside our cells that help turn food into energy. When you exercise, certain mitochondria, known as peridroplet mitochondria, work harder to burn up the fats, helping to prevent the disease from getting worse.

This study is significant because it reveals a connection between exercise, fat droplets, and mitochondria in the liver that wasn’t fully understood before.

The interaction between these elements is crucial for maintaining a healthy balance of fat in the body. While it was known that exercise improves fatty liver disease, the specific impact on these cellular components was previously unclear.

A key player in this process is a protein called mitofusin 2, found on the outer membrane of mitochondria. The researchers noticed that this protein is crucial for the communication between fat droplets and mitochondria.

In animals that exercised, there was a change in the type of fats in the mitochondria’s membranes, suggesting that the mitochondria were working more efficiently.

Interestingly, in mice that lacked the mitofusin 2 gene, this beneficial change didn’t happen, even with exercise. This indicates that mitofusin 2 is essential in regulating how fats are used in response to physical activity.

The findings of this study are a step forward in understanding how exercise can help manage fatty liver disease. The researchers suggest that targeting the mitofusin 2 protein could be a new approach to treating this condition.

By manipulating the levels and activity of this protein, it might be possible to reduce the inflammation and scarring often associated with fatty liver disease.

In conclusion, this research highlights the potential of regular aerobic exercise in combating fatty liver disease and opens new avenues for treatment strategies.

It underscores the importance of staying active and how it can significantly impact our liver health, offering a simple yet effective way to improve our well-being.

If you care about liver health, please read studies about a diet that can treat fatty liver disease and obesity, and coffee drinkers may halve their risk of liver cancer.

For more information about liver health, please see recent studies that anti-inflammatory diet could help prevent fatty liver disease, and results showing vitamin D could help prevent non-alcoholic fatty liver disease.

The research findings can be found in Metabolism.

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