Neurology. 2024 Apr 9;102(7_supplement_1):6885. doi: 10.1212/WNL.0000000000208155. Epub 2024 Apr 9.
ABSTRACT
OBJECTIVE: To analyze whether cerebrospinal fluid (CSF) biomarkers, such as total tau (t-Tau), phosphorylated tau (p-Tau), and amyloid-β42 (Aβ42), increase with sleep deprivation (SD).
BACKGROUND: Several studies have assessed CSF biomarkers associated with Alzheimer’s disease (AD) that could increase with SD; however, the results remain conflicting.
DESIGN/METHODS: We conducted a prognostic systematic review and meta-analysis of randomized and non-randomized studies evaluating SD of any type versus regular sleep patterns in patients without AD. This study was registered with PROSPERO (CRD42023453244). There were no restrictions on follow-up or age. We calculated the mean differences (MD) with 95% confidence intervals (CI) to compare continuous endpoints between the intervention and control arms. Cochran’s Q test and I2 statistics were used to evaluate heterogeneity. We defined low heterogeneity as p > 0.10 and I2 < 25%, moderate heterogeneity as I2 between 25%-75%, and high heterogeneity as I2 > 75%. The DerSimonian Laird random effects model was used to calculate the pooled effect estimates. Statistical significance was set at p ≤ 0.05. We conducted the statistical analyses using Review Manager 5.4 (Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, Denmark).
RESULTS: We searched PubMed, Embase, and Cochrane Library and found 27 studies. After screening and selection, following the Cochrane and PRISMA recommendations, 5 studies with 177 patients were included. Our analysis showed that SD increased p-Tau levels (MD 1.01, 95% CI 0.29 to 1.74, p=0.06, I2 = 0%). However, SD was not associated with changes in Aβ42 (MD -9.57, 95% CI -89.92 to 70.78, p=0.815, I2 = 61%) or t-Tau levels (MD 16.29, 95% CI -9.20 to 41.78, p=0.210, I2 = 35%).
CONCLUSIONS: Sleep deprivation increased p-Tau, but not t-Tau nor Aβ42 in patients without AD. Disclosure: Mr. Berton has nothing to disclose. Mr. Moreira has nothing to disclose. Ms. Rodrigues has nothing to disclose. Miss Batista Donadon has nothing to disclose. Mrs. Dreon Calza has nothing to disclose. Mrs. Menegat has nothing to disclose. Mrs. Brkanitch has nothing to disclose. Miss Mattei has nothing to disclose. Mr. Dias has nothing to disclose. Mr. Guerra has nothing to disclose. Dr. Tonial has nothing to disclose.
PMID:39977921 | DOI:10.1212/WNL.0000000000208155
