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Fig. 3 | The Journal of Headache and Pain

Fig. 3

From: Gamma-aminobutyric acid and glutamate/glutamine levels in the dentate nucleus and periaqueductal gray in new daily persistent headache: a magnetic resonance spectroscopy study

Fig. 3

Comparisons of neurotransmitter levels between NDPH and HC groups. (A) GABA+/Water (i.u.) in the PAG and DN of the HC and NDPH groups. (B) GABA+/Cr in the PAG and DN of the HC and NDPH groups. (C) Glx/Water (i.u.) in the PAG and DN of the HC and NDPH groups. (D) Glx/Cr in the PAG and DN of the HC and NDPH groups. PAG, periaqueductal gray; DN, dentate nucleus; HC, healthy control; NDPH, new daily persistent headache; GABA, gamma-aminobutyric acid; Glx, glutamate/glutamine; Cr, creatine; i.u., institutional unit

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