Fig. 5From: Clinical relevance of depressed kynurenine pathway in episodic migraine patients: potential prognostic markers in the peripheral plasma during the interictal periodAssociations between altered concentrations of PICA and 3-HK and ictal characteristics of all migraine patients (n = 12). PICA: Picolinic acid, 3-HK: 3-hydroxykynurenineBack to article page