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Excessive daytime sleepiness predicts Aβ deposition

13 Sep 2018
The latest HLI survey had Hong Kong ranking last among 15 economies where "health satisfaction" was concerned.

Excessive daytime sleepiness (EDS) appears to increase the long-term risk of amyloid β (Aβ) deposition, a recent study has shown.

Using self-reports, researchers determined EDS and napping patterns in 124 community-dwelling adults (mean age 60.1±9.8 years; 50 percent female). Almost a third (29 percent) of the participants were nappers while 24 percent had EDS. There was no significant correlation between EDS and napping (p=0.24).

Pittsburgh compound B positron emission tomography scans were performed after a mean follow-up duration of 15.7±3.4 years to assess Aβ deposition. At the time of imaging, 4.8 percent (n=6) had been diagnosed with mild cognitive impairment and 34.7 percent (n=43) were positive for Aβ deposits.

Participants with self-reported EDS were significantly more likely to test positive for Aβ deposits at follow-up (56.7 percent vs 28.0 percent; p=0.004).

After adjustments for covariates, multivariable logistic regression analysis showed that the risk of Aβ deposition was 2.75 times higher in those with EDS than in those without (odds ratio [OR], 2.75; 95 percent CI, 1.09–6.95; p=0.033).

A similar trend was observed for nappers. In unadjusted analysis, those with self-reported napping were twice as likely to test positive for Aβ deposits on follow-up than non-nappers, though significance was not reached (OR, 2.01; 0.91–4.50; p=0.091). This relationship was attenuated upon controlling for covariates (OR, 1.86; 0.73–4.75; p=0.194).

The findings indicate that EDS may be a low-cost, simple and noninvasive method with which patients can be risk-stratified according to likelihood of Aβ deposition, said researchers.

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Most Read Articles
Roshini Claire Anthony, 4 days ago

Individuals with moderate-to-severe plaque psoriasis may reap better long-term improvements in the severity of their condition when treated with guselkumab over secukinumab, according to findings of the phase III ECLIPSE* trial presented at the recent Inflammatory Skin Disease Summit (ISDS 2018) held in Vienna, Austria.

Jairia Dela Cruz, 11 Jan 2019
Use of standard-dose aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs) appears to confer protection against the risk of endometrial cancer in overweight and obese women, according to a meta-analysis.
3 days ago
Discontinuing the use of tyrosine kinase inhibitors (TKIs) in the treatment of patients with chronic myeloid leukaemia appears to be feasible in real-life clinical practice in the context of close molecular monitoring, a study reports.
4 days ago
There appears to be no clear link between pornography use, even at problematic levels, and erectile dysfunction, a recent US study has shown.