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. 2002 Feb;22(1):33-6.
doi: 10.1046/j.1468-2982.2002.00304.x.

Increased plasma nitrites in migraine and cluster headache patients in interictal period: basal hyperactivity of L-arginine-NO pathway?

D D'Amico  1 , A Ferraris, M Leone, A Catania, A Carlin, L Grazzi, G Bussone
Affiliations

Increased plasma nitrites in migraine and cluster headache patients in interictal period: basal hyperactivity of L-arginine-NO pathway?

D D'Amico et al. Cephalalgia. 2002 Feb.

Abstract

Nitrite concentrations in plasma were investigated in a population of migraine and cluster headache patients and a group of healthy non-headache controls. A hundred migraine patients and 69 cluster headache patients in the interictal period, and 112 controls, were studied. Significantly higher nitrite concentrations were found in migraine patients, with and without aura, and cluster headache patients, in remission and cluster phase, than in controls. These findings suggest that a basal dysfunction in the L-arginine-NO pathway may be involved in the peripheral mechanisms predisposing subjects with neurovascular headaches to individual attacks.

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