TG and Alzheimer disease: Tg content in AD non-treated samples was 2.01 ± 0.07 mg Tg/μg DNA; while Tg level in EXT-treated cells was significantly lower (1.19 ± 0.05 mg Tg/μg DNA [AD + BOL] and 0.99 ± 0.03 mg Tg/μg DNA [AD + QUE]).