Prolactin in headache and migraine: A systematic review of clinical studies
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Objective: To systemically review clinical studies investigating the role of prolactin and its receptors in headache and migraine. Background: Migraine prevalence is more common in women compared to men. As prolactin is a crucial regulator of the hypothalamus-pituitary-gonadal axis, prolactin and its receptors might contribute to signaling mechanisms underlying migraine. Methods: In this systematic review, we searched PubMed and EMBASE with the terms: prolactin, hyperprolactinemia, macroprolactinemia, hypoprolactinemia, migraine, headache, head pain and trigeminal pain pathway for clinical studies investigating prolactin signaling in headache and migraine. Two reviewers independently screened 841 articles for population, intervention, comparison, outcome, and study design. Studies were restricted to the English language and were excluded if they had a nonexperimental methodology. Results: Nineteen clinical studies met the inclusion criteria and were included in the qualitative and quantitative analysis. The main findings were that serum prolactin levels were found to be higher in individuals with migraine compared to healthy controls, and prolactinomas (prolactin-secreting pituitary adenomas) were correlated with higher incidence of headache in otherwise healthy individuals and migraine attacks in individuals with migraine. Conclusion: Considerable evidence suggests a key role of prolactin and its receptors in migraine pathophysiology. Further randomized and placebo-controlled clinical studies targeting prolactin signaling are needed to further clarify influences of prolactin in migraine attack initiation.
Originalsprog | Engelsk |
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Tidsskrift | Cephalalgia |
Vol/bind | 43 |
Udgave nummer | 2 |
Antal sider | 19 |
ISSN | 0333-1024 |
DOI | |
Status | Udgivet - 2023 |
Bibliografisk note
Funding Information:
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: We thank NIH for funding professor Dussor for his work on prolactin (NIH grant number NS 104200), the Research Fund of Rigshospitalet (E-23327-04) and the Lundbeck Foundation Professor Grant (R310-2018-3711).
Publisher Copyright:
© The Author(s) 2023.
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