Preliminary study: Drug may be safe in those with mild cognitive impairment, mild dementia

A small, preliminary study of an investigational new drug being studied for mild cognitive impairment and mild dementia associated with Alzheimer's disease suggests it is safe and may be associated with improvements in executive function, thinking and memory skills. The study is released today, March 31, 2022, and will be presented at the American Academy of Neurology's 74th Annual Meeting being held in person in Seattle, April 2 to 7, 2022 and virtually, April 24 to 26, 2022. The drug, called SAGE-718, is also in clinical trials for the treatment of cognitive impairment associated with Parkinson's disease and Huntington's disease.

Easier, faster assay enables many more laboratories to identify COVID-19 variants

A new study has found that the Novaplex SARS-CoV-2 Variant I, II, and IV real-time PCR assays (from Seegene Technology) can reliably detect SARS-CoV-2 in patient samples and identify known variants of interest and concern. Results from the PCR assays were comparable to those from the "gold standard" spike gene Sanger sequencing method. Researchers were also able to successfully streamline testing and reduce cost and turnaround time by processing samples without extracting RNA for testing. Their findings appear in The Journal of Molecular Diagnostics.

Classification of 16 adult sleep patterns based on large-scale sleep analysis

In recent years, the number of people worldwide who are dissatisfied or anxious about their sleep has been increasing due to the diversification of lifestyles. Simple sleep measurement and quantitative understanding of individual sleep patterns are very important not only in the field of healthcare but also from the medical perspective, such as in the diagnosis of sleep disorders.

New insights into FXTAS could inform future research and clinical trials

After following a group of patients with a specific gene mutation for many years, a team of UC Davis MIND Institute scientists has provided important insights into how fragile X-associated tremor/ataxia syndrome (FXTAS) first develops. The work, led by researchers David Hessl and Susan Rivera, identifies new ways to study the disease and possibly test potential therapies in the future. FXTAS, caused by "premutation" expansions of the FMR1 gene, has no approved treatments, only symptomatic management. The study was published in the Journal of Neurodevelopmental Disorders.

Synchrotron light for faster and more effective tooth whitening treatments

Researchers of the Universitat Autònoma de Barcelona (UAB) in collaboration with the ALBA Synchrotron have studied the side effects of typical tooth whitening treatments based on oxidation compared to a new treatment developed by the authors through reduction. Results, published in Dental Materials, showed the whitening effect of the novel treatment to be highly improved in terms of application time needed, efficiency and safety, which makes it a promising candidate to develop novel whitening treatments. Experiments at the MIRAS beamline of ALBA helped to determine the chemical mineral modifications in the dental enamel.