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
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
As Sancheti explains, an advantage of minimally invasive approaches (sometimes called VATS for video-assisted thoracic surgery) is that surgeons do not open the patient’s chest, avoiding pain and potential complications and reducing length of stay in the hospital.
Among thoracic surgeons, the shift to this type of approach has taken place in the last few years — unevenly. Here’s a graph from one recent publication from Felix Fernandez, MD and colleagues, showing the percent of stage I lung cancer surgeries — compiled for individual surgeons in the Society of Thoracic Surgeons — that are minimally invasive from 2011-2014. The average is about 63 percent, but it varies widely.
Attention medical journalists: if you want to ask questions like “Are these minimally invasive lung surgery approaches really good for long term patient outcomes?”, Fernandez is your guy. As the numbers come in, he is leading a team that is analyzing them. Read more
The Spectropen, a hand-held device developed by Emory and Georgia Tech scientists, was designed to help surgeons see the margins of tumors during surgery.
Some of the first results from procedures undertaken with the aid of the Spectropen in human cancer patients were recently published by the journal PLOS One.Â A related paper discussing image-guided removal of pulmonary nodules was just published in Annals of Thoracic Surgery.
To test the Spectropen, biomedical engineer Shuming Nie and his colleagues have been collaborating with thoracic surgeon Sunil Singhal at the University of Pennsylvania.
As described in the PLOS One paper, five patients with cancer in their lungs or chest participated in a pilot study at Penn. They received an injection of the fluorescent dye indocyanine green (ICG) before surgery.
ICG is already FDA-approved for in vivo diagnostics and now used to assess cardiac and liver function. ICG accumulates in tumors more than normal tissue because tumors have leaky blood vessels and membranes. The Spectropen shines light close to the infrared range on the tumor, causing it to glow because of the fluorescent dye.
[This technique resembles the 5-aminolevulinic acid imaging technique for brain tumor surgery being tested by Costas Hadjipanayis, described in Emory Medicine.]
In one case from the PLOS One article, the imaging procedure had some tangible benefits, allowing the surgeons to detect the spread of cancerous cells when other modes of imaging did not. Read more