Research Article

Brain Activation during Memory Encoding in Type 2 Diabetes Mellitus: A Discordant Twin Pair Study

Table 3

Regions (and , , and coordinates) associated with reduced activation in type 2 diabetes.

All (22 pairs)
RegionHemisphere score

Middle temporal gyrusL204.64401
Angular gyrusL343.36
Angular gyrusL363.35
Middle temporal gyrusL323.29
Inferior parietal lobuleL263.22
Middle temporal gyrusL303.08
Middle temporal gyrusL4.39399
Middle temporal gyrusL4.26
Middle temporal gyrusL3.43
Middle temporal gyrusL3.41
Middle temporal gyrusL43.32
Superior temporal gyrusL63.3

MZ (8 pairs)
RegionHemisphere score

Medial frontal gyrusL5844.29270
Medial frontal gyrusL48184.27
Superior frontal gyrusL6284.2
Medial frontal gyrusL48144.16
Medial frontal gyrusL54204.12

DZ (14 pairs)
RegionHemisphere score

Middle temporal gyrusL3.71421
Middle temporal gyrusL3.5
Middle temporal gyrusL83.42
Middle temporal gyrusL3.32
Middle temporal gyrusL3.3
Middle temporal gyrusL3.09
Middle temporal gyrusL223.8307
Angular gyrusL343.38
Middle temporal gyrusL303.34
Supramarginal gyrusL343.1
Middle temporal gyrusL303.04
Middle temporal gyrusL303.02

Covariates include gender (except in MZ comparisons), waist circumference, and history of hypertension.
MZ: monozygotic; DZ: dizygotic.
, , and refer to Montreal Neurological Institute voxel coordinates; regions are based on the Talairach Daemon; : peak voxel cluster; L: left hemisphere.
All comparisons are within twin pairs and corrected for family-wise error (FWE) threshold of 0.05.