Fig. 4From: Clinical relevance of depressed kynurenine pathway in episodic migraine patients: potential prognostic markers in the peripheral plasma during the interictal periodAssociations between metabolic changes and clinical features of MWoA patients in the interictal period, and age of healthy controls (median, interquartile range, minimum and maximum values were presented in the figures of KYNA). Sample sizes in groups: interictal phase of migraineurs without aura (n = 36); Sample size in case of MELA: healthy control (n = 30), interictal phase of migraineurs without aura (n = 28). KYNA: Kynurenic acid, XA: Xanthurenic acid, MELA: MelatoninBack to article page