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Now That's a Good Variant to Have

Technology Review reports on a study published in JAMA indicating that a genetic variant known to improve cholesterol levels appears to "also protect against the development of Alzheimer's disease and other types of dementia," the article says. The research, conducted by scientists at Albert Einstein College of Medicine, showed that people with two copies of the variant "had a 70 percent lower chance of developing Alzheimer's and other dementias, as well as a significantly lower rate of memory decline." The story adds that "the new findings are likely to heighten interest in finding ways to chemically enhance good cholesterol--experimental drugs that mimic the molecular effects of the genetic variant are already in clinical tests for heart disease."

The Scan

New Study Highlights Role of Genetics in ADHD

Researchers report in Nature Genetics on differences in genetic architecture between ADHD affecting children versus ADHD that persists into adulthood or is diagnosed in adults.

Study Highlights Pitfall of Large Gene Panels in Clinical Genomic Analysis

An analysis in Genetics in Medicine finds that as gene panels get larger, there is an increased chance of uncovering benign candidate variants.

Single-Cell Atlas of Drosophila Embryogenesis

A new paper in Science presents a single-cell atlas of fruit fly embryonic development over time.

Phage Cocktail Holds Promise for IBD

Researchers uncovered a combination phage therapy that targets Klebsiella pneumonia strains among individuals experiencing inflammatory bowel disease flare ups, as they report in Cell.