Table 2.
Brain regions where higher mean IL-6 levels are associated with accelerated cortical thinning with age.
| Brain region | Peak coordinates | ||||||
|---|---|---|---|---|---|---|---|
| Brodmann area | Cluster size (mm2) | x | y | z | Cluster p-value | Mean β-values (mm/yr) | |
| Cortex of the subcentral gyrus (operculum) and sulci | 43 | 837.33 | 67.0 | −11.4 | 17.3 | < .001 | −.006 |
| Temporal pole | 38 | 647.73 | 35.9 | 13.7 | −35.8 | < .001 | −.007 |
| Cortex of the transverse frontopolar gyri and sulci | 10 | 566.39 | −23.8 | 51.7 | 3.0 | < .001 | −.005 |
| Cortex in the calcarine sulcus | 18 | 562.40 | 12.3 | −69.0 | 15.2 | < .001 | −.003 |
| Temporal pole | 20 | 399.11 | −46.9 | −3.8 | −30.9 | < .001 | −.005 |
| Inferior temporal gyrus | 20 | 252.40 | 56.5 | −32.8 | −18.1 | < .006 | −.006 |
| Cortex of the cingulate gyrus and sulcus (medial-anterior) | 32 | 236.58 | 9.1 | 9.2 | 40.0 | < .011 | −.006 |
| Superior occipital gyrus | 31 | 215.54 | −23.6 | −82.1 | 25.2 | < .018 | −.006 |
| Opercular part of the inferior frontal gyrus | 22 | 203.72 | −52.6 | 9.2 | −1.7 | < .025 | −.005 |
Note. All coordinates are given in Talairach space. The parcellations were obtained using Destrieux sulcogyral based atlas [42]. Negative x coordinates refer to cortex in the left hemisphere, and positive x coordinates to the right hemisphere. Criterion for significance was defined as clusters with a minimum of 200 vertex, p < 0.005 with an additional cluster threshold of p < 0.05.