FMR1 and fragile X-associated tremor/ataxia syndrome: As expected, in all 22 patients with FXTAS, CGG repeats were significantly expanded [F(2,27) = 17.07, p < 0.0001] and FMR1 mRNA levels were significantly elevated [t(1,18) = 41.96, p < 0.0001] when compared to normal controls.