The role and interaction of hypothalamic-related neurotransmitters in migraine
Abstract
Migraine is a complex neurological disorder frequently associated with hypothalamic dysfunction. This brain region is essential for maintaining homeostasis due to its regulation of autonomic, endocrine, and circadian systems. While the pathophysiology of migraine remains incompletely understood, clinical features such as the cyclic nature of attacks and symptoms, including nausea, vomiting, yawning, irritability, and sensitivity to light, indicate a significant role for the hypothalamus. Further, potential triggers of migraine, such as stress and disruption to feeding habits, also impact hypothalamic mechanisms. The higher prevalence of migraine in women compared to men suggests a link to hormonal fluctuations involving estrogen, progesterone, and prolactin. These hormones interact with the hypothalamus, potentially influencing the onset and severity of migraine episodes. Additionally, the hypothalamus synthesizes neuropeptides such as orexins, neuropeptide Y, PACAP, oxytocin, and vasopressin, which are all implicated in migraine mechanisms. Understanding the interplay between the hypothalamus, sex hormones, and neuropeptides offers valuable opportunities for endogenous targeted migraine therapies. In this review we discuss hypothalamic contributions to migraine pathophysiology, highlighting the mechanisms affected by hypothalamic connections, neuropeptides, and hormones, and their role as migraine triggers, particularly focusing on factors like stress, fasting, and changes…
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