A surprising brain finding may help explain why we overeat.
Recently, there have been a number of recent developments in the field of international medical health that continue to attract attention from the industry and the public. Obesity is a major health problem globally, and it may increase the risk of diabetes, cardiovascular disease, and other metabolic disorders. Many factors may contribute to obesity, but researchers are increasingly focusing on the potential role of high-fat foods.
These foods can be difficult to resist and may encourage people to eat more than they need. Although binge eating seems to start with stomach problems, appetite is largely regulated by the brain. Scientists still do not fully understand how dietary fat interacts with the nervous system to control hunger, food intake, and body weight.
The brain protein related to appetite control, OPA1, is present in the mitochondrial MC4R neurons and is involved in maintaining mitochondrial function and energy metabolism. Researchers compared wild mice with mice in which OPA1 was specifically removed from the MC4R neurons. To study how protein affects appetite and weight, animals were given free corn oil as a source of dietary fat.
Dietary fat had different effects in male wild mice and female mice. Mice lacking OPA1 ate more food, increasing in weight and eventually becoming obese as they grew older. When these animals were free to choose standard recipes and soybean oil, mice lacking OPA1 ate more fat and gained more weight.
These effects were particularly noticeable in females. The researchers also tested setmelanotide, which is an anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity Anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity MC4R receptors anti-obesity 4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R receptor anti-obesity MC4R drug successfully reduced appetite in controlled men and men with an OPA-1 deficiency. However, in women with an OPA-1 deficiency, its ability to suppress appetite significantly decreased.
Professor Matsumura said. Observations of gender differences in OPA1 responses and obesity susceptibility may help provide guidance for obesity treatment drugs that we are developing, and may also provide guidance for our future AI personalized medical approaches. These findings are published in the FASEB Journal.
