National Institutes of Health, Bethesda / Ehsan Shokri-Kojori*, Gene-Jack Wang*, Nora D. Volkow*
The effects of acute sleep deprivation on β-amyloid (Aβ) clearance in the human brain have not been documented. Here we used PET and 18F-florbetaben to measure brain Aβ burden (ABB) in 20 healthy controls tested after a night of rested sleep (baseline) and after a night of sleep deprivation. We show that one night of sleep deprivation, relative to baseline, resulted in a significant increase in Aβ burden in the right hippocampus and thalamus. These increases were associated with mood worsening following sleep deprivation, but were not related to the genetic risk (APOE genotype) for Alzheimer's disease. Additionally, baseline ABB in a range of subcortical regions and the precuneus was inversely associated with reported night sleep hours. APOE genotyping was also linked to subcortical ABB, suggesting that different Alzheimer's disease risk factors might independently affect ABB in nearby brain regions. In summary, our findings show adverse effects of one-night sleep deprivation on brain ABB and expand on prior findings of higher Aβ accumulation with chronic less sleep.
Shokri-Kojori E1, Wang GJ1, Wiers CE2, Demiral SB2, Guo M2, Kim SW2, Lindgren E2, Ramirez V2, Zehra A2, Freeman C2, Miller G2, Manza P2, Srivastava T2, De Santi S3, Tomasi D2, Benveniste H4, Volkow ND1.
Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892; email@example.com firstname.lastname@example.org email@example.com.
Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892.
Piramal Pharma Inc., Boston, MA 02108.
Department of Anesthesiology, Yale School of Medicine, New Haven, CT 06510.