Table 1 Relationships between molecular parameters and composite cognitive scores and neuroanatomical measures outcome variables for the PM group

From: Brain structure and intragenic DNA methylation are correlated, and predict executive dysfunction in fragile X premutation females

Outcome variables

β (r2)

 

CGG

AR

FMR1 mRNA

CpG 1

CpG 2

CpG 6/7

CpG 8/9

CpG 10–12

Prosaccade response time

−0.142 (0.020)

0.450 (0.199)

0.288 (0.093)

−0.105 (0.011)

0.232 (0.054)

0.791 (0.366)

0.321 (0.103)

0.281 (0.064)

Prosaccade error score

0.217 (0.047)

−0.469 (0.350)

0.038 (0.001)

0.364 (0.261)

−0.253 (0.064)

−0.76 (0.353)

−0.591 (0.344)

−0.670 (0.478)

Executive function score

0.229 (0.053)

−0.196 (0.009)

0.132 (0.017)

0.010 (0.000)

0.213 (0.045)

−0.455 (0.198)

−0.511 (0.261)

−0.310 (0.086)

White matter hypointensities

−0.079 (0.006)

0.386 (0.158)

0.265 (0.100)

−0.511 (0.261)

0.113 (0.013)

0.471 (0.222)

0.076 (0.005)

0.405 (0.079)

Left middle frontal gyrus

−0.146 (0.021)

0.215 (0.051)

−0.254 (0.066)

0.106 (0.011)

0.331 (0.109)

0.427 (0.179)

0.564 (0.319)

0.504 (0.220)

Right middle frontal gyrus

0.035 (0.001)

0.039 (0.002)

−0.346 (0.116)

0.065 (0.004)

0.055 (0.003)

0.250 (0.062)

0.655 (0.430)

0.375 (0.117)

Left superior frontal gyrus

−0.024 (0.001)

−0.051 (0.003)

−0.324 (0.104)

0.252 (0.064)

0.292 (0.085)

0.426 (0.176)

0.541 (0.293)

0.455 (0.183)

Right superior frontal gyrus

0.030 (0.001)

0.065 (0.005)

−0.186 (0.033)

0.305 (0.093)

0.276 (0.076)

0.293 (0.086)

0.612 (0.374)

0.415 (0.168)

Left inferior parietal gyrus

−0.081 (0.007)

−0.200 (0.040)

−0.294 (0.084)

0.058 (0.003)

0.104 (0.011)

0.558 (0.312)

0.494 (0.241)

0.317 (0.077)

Right inferior parietal gyrus

−0.020 (0.000)

−0.242 (0.056)

−0.350 (0.119)

−0.039 (0.002)

0.052 (0.003)

0.242 (0.045)

0.089 (0.008)

−0.023 (0.000)

  1. Abbreviations: β, standardized regression coefficients; AR, activation ratio; FMR1, Fragile X mental retardation 1; PM, premutation; r2, coefficient of determination.
  2. Note: Figures in bold indicate that P<0.05.