Key result
Excessive hypothalamic nitric oxide signaling may drive impaired leptin responsiveness in obesity.
Why the study?
Evidence indicates that leptin's central actions are partly mediated through nitric oxide, motivating a review of nitric oxide and neuronal nitric oxide synthase involvement in hypothalamic leptin signaling.
Design
Review
Authors
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May implicate nNOS-NO excess in obesity-related leptin resistance; leaves open any therapeutic targeting.
This review highlights the emerging role of neuronal nitric oxide synthase and S-nitrosylation in mediating hypothalamic leptin signaling, which may have implications for understanding metabolic disorders like obesity.
Hristov et al. (2026) conducted a review in Obesity and metabolic disorders. Leptin signaling and neuronal nitric oxide synthase was evaluated. Hypothalamic leptin signaling is mediated through neuronal nitric oxide synthase and NO production, with excessive NO signaling potentially contributing to impaired leptin responsiveness in obesity.
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