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We are well aware that foods having spiked rates of calories, fats and sugars are detrimental to our health even if their taste is very good. Despite knowing this, overeating is a common tendency among many. What triggers this tendency in the brain?According to research published in "The FASEB Journal", It is now known that a gene termed CREB-Regulated Transcription Coactivator 1 (CRTC1) is connected to obesity in humans. Mice lacking CRTC1 develop obesity, which suggests that CRTC1 in normal operation prevents obesity. The precise neurons that reduce obesity and the mechanism they contain are yet unclear, though, because CRTC1 is found in all brain neurons.To elucidate the mechanism by which CRTC1 suppresses obesity, a research group led by Associate Professor Shigenobu Matsumura from the Graduate School of Human Life and Ecology at Osaka Metropolitan University focused on neurons expressing the melanocortin-4 receptor (MC4R). They hypothesized that CRTC1 expression in MC4R-expressing neurons suppressed obesity because mutations in the MC4R gene are known to cause obesity. Consequently, they created a strain of mice that expresses CRTC1 normally except in MC4R-expressing neurons where it is blocked to examine the effect that losing CRTC1 in those neurons had on obesity and diabetes.When fed a standard diet, the mice without CRTC1 in MC4R-expressing neurons showed no changes in body weight compared to control mice. However, when the CRTC1-deficient mice were raised on a high-fat diet, they overate, then became significantly more obese than the control mice and developed diabetes."This study has revealed the role that the CRTC1 gene plays in the brain, and part of the mechanism that stops us from overeating high-calorie, fatty, and sugary foods," said Professor Matsumura. "We hope this will lead to a better understanding of what causes people to overeat."( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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