Overweight and obese individuals are more likely to develop a meningioma brain tumor, according to a new study.
The study carried out by a team of researchers from University of Regensburg focused on the most common brain tumors in adults, meningioma and glioma. They conducted a meta-analysis of previous studies to explore the relationship between adiposity and physical activity alongside brain tumor risk.
The experts failed to prove that obesity causes brain tumors. But they have uncovered a striking correlation between increased risk of meningioma and body mass index (BMI).
The study concluded that overweight patients were 21 percent more likely to have a meningoma tumor compared with people of normal body weight, a BMI below 25. In addition, people with a BMI of 30 or more were 54 percent more likely to develop one.
The researchers also found that physical activity was associated with a lower risk of meningioma. Those who were the most physically active were 27 percent less likely to have a meningioma than those with the lowest amount of activity.
“These findings are important because there are few known risk factors for meningioma and most of these are not within the individual’s control,” said Dr. Gundula Behrens, a lead researcher from the German University.
The primary risk factors include advanced age and being female. Women are twice as likely as men to develop a meningioma. Gliomas originate in the glial cells, which surround and support neurons in the brain.
On the other hand, Meningioma develops in the meninges – the three layers that surround the brain and spinal cord. Majority of meningiomas are benign in nature and tend to grow slowly. The two most common types of brain tumors account for about 70 percent of all cases of brain malignancies. IMAGE/focusnews