Most Read Articles
Tristan Manalac, 4 days ago
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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
Tristan Manalac, 4 days ago
The causes, presentations and management of anaphylaxis vary considerably with age, according to a recent Singapore study, which reported that children are more likely to present with food anaphylaxis, while drug anaphylaxis is more common in adults.
Pearl Toh, 3 days ago
Low-density lipoprotein cholesterol (LDL-C) levels remained high in many patients with stable or acute coronary heart disease (CHD) in Asia, despite having a very high risk of recurrent cardiovascular (CV) events, indicating that the use of lipid-lowering therapies and lipid monitoring were inadequate.
13 Sep 2018
Substituting diets high in carbohydrates with those high in monounsaturated fatty acids in the context of low saturated fatty acids do not appear to yield favourable effects on blood pressure, according to a meta-analysis.
2 days ago
There is a strong association between smoking duration and colorectal polyps, independent of smoking intensity, cessation and other potential confounders, reports a recent study. Such association is more robust with distal rather than proximal polyps, and with serrated polyps rather than adenomas.