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Related Experiment Video

Updated: May 11, 2026

Dural Stimulation and Periorbital von Frey Testing in Mice As a Preclinical Model of Headache
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Hypothalamic dopaminergic stimulation in cluster headache.

Anne Lepper1, Achim Frese, Oliver Summ

  • 1Department of Neurology, University of Münster, Germany.

Cephalalgia : an International Journal of Headache
|May 1, 2013
PubMed
Summary
This summary is machine-generated.

Cluster headache patients show impaired hypothalamic dopaminergic function, indicated by abnormal growth hormone response to apomorphine. This suggests a primary hypothalamic abnormality in cluster headache, not secondary to attacks.

Keywords:
Cluster headacheapomorphinecortisolgrowth hormoneprolactin

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Area of Science:

  • Neuroendocrinology
  • Headache Medicine

Background:

  • Cluster headache is linked to structural hypothalamic abnormalities.
  • Investigating endocrinological functional abnormalities in cluster headache is crucial.

Purpose of the Study:

  • To assess hypothalamic dopaminergic activation in cluster headache patients using the apomorphine challenge test.
  • To explore the association between cluster headache and endocrinological functional abnormalities.

Main Methods:

  • 13 cluster headache patients (outside bout, no medication) and 14 healthy controls underwent apomorphine challenge.
  • Subcutaneous apomorphine (0.005 mg/kg) was administered.
  • Growth hormone (GH), prolactin, and cortisol levels were measured at 45 and 60 minutes post-injection.

Main Results:

  • Significantly lower GH levels were observed in cluster headache patients compared to controls at 45 minutes (P = 0.038).
  • GH levels in cluster headache patients did not differ significantly from baseline at 60 minutes.
  • No significant differences in prolactin or cortisol levels were found between groups.

Conclusions:

  • Cluster headache is associated with impaired dopaminergic stimulation.
  • This supports evidence of a primary, idiopathic functional abnormality of the hypothalamus in cluster headache.