Tag Archives: hospital

Researchers engineer ‘Cas9’ animal models to study disease, inform drug discovery

In recent years, genetic studies have found thousands of links between genes and various diseases. But in order to prove that a specific gene is playing a role in the development of the disease, researchers need a way to perturb it — that is, turn the gene off, turn it on, or otherwise alter it — and study the effects. The CRISPR-Cas9 genome-editing system is one of the most convenient methods available for making these alterations in the genome. While the tool is already being used to test the effects of mutations in vitro — in cultured cell lines, for instance — it is now possible to use this tool to study gene functions using intact biological systems…

Study questions accuracy of lung cancer screens with FDG-PET technology in some geographic regions

Histoplasmosis and other fungal diseases are linked to fungi that are often concentrated in bird droppings and are found in soils. The study by investigators at Vanderbilt University and the Tennessee Valley Healthcare System-Veterans Affairs was led by Vanderbilt first author Stephen Deppen, Ph.D., and principal investigator Eric Grogan, M.D., MPH, and appeared in the Sept. 24 issue of JAMA. …

Study questions accuracy of lung cancer screens in some geographic regions

Histoplasmosis and other fungal diseases are linked to fungi that are often concentrated in bird droppings and are found in soils. The study by investigators at Vanderbilt University and the Tennessee Valley Healthcare System-Veterans Affairs was led by Vanderbilt first author Stephen Deppen, Ph.D., and principal investigator Eric Grogan, M.D., MPH, and appeared in the Sept. 24 issue of JAMA. Positron emission tomography (PET) combined with fludeoxyglucose F18 (FDG) is currently recommended for the noninvasive diagnosis of lung nodules suspicious for lung cancer…

New therapeutic target may prevent blindness in premature babies at risk of retinopathy

“This study shows that a single receptor may play various roles depending on whether its site of action is in the nucleus or on the cell membrane,” states Dr. Jean-S�bastien Joyal, MD, PhD, a pediatric intensivist at the Sainte-Justine UHC and an assistant professor at the Universit� de Montr�al. The groundbreaking discovery has significant clinical implications, since many drugs act on this family of receptors irrespective of their site of action in the cell. “Our results are extremely encouraging. …

Long-term androgen deprivation therapy combined with high-dose radiation therapy for prostate cancer improves biochemical control and survival rates

Because prostate cancer cells typically require androgen hormones such as testosterone to grow, ADT is often recommended for patients with prostate cancer. Radiation therapy (RT) combined with ADT is an established, standard of care for patients with locally advanced prostate cancer…

Radiation therapy, concurrent chemotherapy after surgery is effective treatment for high-risk endometrial cancer

Endometrial cancer is the most common gynecologic malignancy. Patients with early-stage disease are typically treated with surgery alone; however, patients with advanced endometrial cancer have higher instances of local or distant recurrence. Concurrent radiation therapy and chemotherapy after surgery is used to reduce the rate of recurrence in patients with advanced disease. This study, “A Phase 2 Trial of Radiation Therapy With Concurrent Paclitaxel Chemotherapy After Surgery in Patients With High-Risk Endometrial Cancer: A Korean Gynecologic Oncology Group Study,” evaluates the efficacy and toxicity of concurrent chemoradiation with weekly paclitaxel in patients with stage III and IV endometrial cancer. …