Warren symposium follows legacy of geneticist giant

If we want to understand how the brain creates memories, and how genetic disorders distort the brain’s machinery, then the fragile X gene is an ideal place to start. That’s why the Stephen T. Warren Memorial Symposium, taking place November 28-29 at Emory, will be a significant event for those interested in neuroscience and genetics. Stephen T. Warren, 1953-2021 Warren, the founding chair of Emory’s Department of Human Genetics, led an international team that discovered Read more

Mutations in V-ATPase proton pump implicated in epilepsy syndrome

Why and how disrupting V-ATPase function leads to epilepsy, researchers are just starting to figure Read more

Tracing the start of COVID-19 in GA

At a time when COVID-19 appears to be receding in much of Georgia, it’s worth revisiting the start of the pandemic in early 2020. Emory virologist Anne Piantadosi and colleagues have a paper in Viral Evolution on the earliest SARS-CoV-2 genetic sequences detected in Georgia. Analyzing relationships between those virus sequences and samples from other states and countries can give us an idea about where the first COVID-19 infections in Georgia came from. We can draw Read more
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NFkB

How white blood cells limit muscle regeneration

A paper from cardiologist Aloke Finn and colleagues (published Wednesday, Aug. 5 in Nature Communications) describes how the protein CD163, produced by macrophages, puts the brakes on muscle repair after ischemic injury in mice. Here’s why we think this paper is interesting.

*Speculatively, there are connections to the recent wave of “young blood cures old body” parabiosis research. Increased CD163 is a marker of aging in humans. Maybe low levels of CD163 are part of how young blood is restorative.

*Translational potential — it wouldn’t be too hard to make an antibody against human CD163. Something that blocks CD163 could possibly be used to treat muscle breakdown, which occurs in response to injury, inactivity and in diseases such as cancer and diabetes.

*Finn says his team was surprised to find that mice lacking CD163, tested in experiments where blood flow is restricted in one leg, showed increased blood vessel and muscle growth in the other leg. It looks like part of CD163’s role is to limit muscle regeneration to the site of injury. Read more

Posted on August 5, 2015 by Quinn Eastman in Heart Leave a comment