IDH3B and Behcet disease: A recent study using 31P-magnetic resonance spectroscopy showed that the effect of age on ATP concentration in the gray matter is significantly different between BD patients and healthy controls.43 Interestingly, we found decreased mRNA levels of IDH3A and IDH3B in the dorsolateral prefrontal cortex of BD, although we did not examine whether enzymatic activity of IDH3A and IDH3B is altered in the BD patients.