
Keywords: کمبود پیرووات دهیدروژناز; Pyruvate dehydrogenase deficiency; Paroxysmal exercise-induced dystonia; Brain MRS; Thiamine-responsive dystoniaMRS, magnetic resonance spectroscopy; MRI, magnetic resonance imaging; PDH, pyruvate dehydrogenase; WB, western blot; PED, paroxysmal exercise