# Research on OPA1 protein and obesity mechanisms > Live situation record from CLSTR: https://clstr.news/situations/research-on-opa1-protein-and-obesity-mechanisms > Updated: 2026-08-31T20:00:00.000Z. Sources: 6. Developments: 2. Researchers at Osaka Metropolitan University have identified a neural protein, optic atrophy-1 (OPA1), which appears to play a significant role in controlling cravings for fatty foods and weight gain. The study, published in the FASEB Journal, indicates that OPA1 is responsible for the efficient functioning of mitochondria within appetite-related neurons in the hypothalamus. In mouse experiments, the absence of OPA1 in neurons carrying the melanocortin 4 receptor (MC4R) resulted in a higher preference for dietary fat and more rapid weight gain compared to control groups. These effects were observed to be more pronounced in females than males. Nutritionist Shigenobu Matsumura stated that the findings provide “key insights into the mechanisms underlying obesity from the perspective of neuronal energy metabolism.” Following the identification of this biological pathway, supplemental guidance suggests that managing hunger through high-satiety foods—such as those high in fiber, protein, or water content—can assist in weight management and appetite regulation. ## Timeline ### 2026-08-31: Researchers identify OPA1 protein as key factor in fat intake and obesity Scientists have identified the OPA1 protein as a key factor in regulating fat consumption and obesity, while nutritional studies highlight high-satiety foods like oats and eggs for weight management. 4 sources. https://clstr.news/cluster/researchers-identify-opa1-protein-as-key-factor-in-fat-intake-and-obesity ### 2026-08-29: Osaka Metropolitan University researchers identify protein linked to fatty food cravings Researchers at Osaka Metropolitan University have identified the OPA1 protein as a key factor in regulating fat intake and weight gain, potentially offering new insights into obesity mechanisms. 2 sources. https://clstr.news/cluster/osaka-metropolitan-university-researchers-identify-protein-linked-to-fatty-food-cravings --- Cite as: Research on OPA1 protein and obesity mechanisms. CLSTR, https://clstr.news/situations/research-on-opa1-protein-and-obesity-mechanisms