The Huh-7 cell line underwent a detailed sub-cloning process to enhance its effectiveness for Hepatitis E Virus (HEV) infection studies. This involved diluting and culturing cells in 96-well plates until confluent monolayers formed, followed by selection and expansion of the most suitable cells. The sub-clone S10-3, derived from this process, was identified as the most efficient for transfection and infection by HEV.
This technology includes the NeurEx® mobile application, a groundbreaking tool designed for neurologists to conduct and document neurological examinations efficiently. Deployed on iPads, it integrates with a secure, cloud-based database, automating the computation of four key disability scales used in neuroimmunology. The app's robust design enables precise mapping of neurological deficits, blending spatial distribution with quantitative assessments.
The technology involves the genetic engineering of Respiratory Syncytial Virus (RSV) to express two additional genes, green fluorescent protein (GFP) and Renilla luciferase, from different positions within the viral genome. GFP serves as a visual marker for RSV infection, allowing researchers to monitor and track infected cells using fluorescence microscopy, while luciferase functions as a highly sensitive reporter gene that enables quantitative assessment of viral replication through enzymatic assays.
In this technology, researchers have engineered a modified version of Respiratory Syncytial Virus (RSV) strain A2 using reverse genetics to incorporate green fluorescent protein (GFP) into the first-gene position. This genetic modification allows for the efficient monitoring of RSV infection and the screening of potential chemical inhibitors. The GFP expression can be easily detected through fluorescence microscopy in live or fixed cells, providing a sensitive tool for both research and drug discovery.
In research settings, visualization of tumors or tumor cells is often done using either bioluminescence or fluorescence. However, both of these methods have shortcomings: bioluminescence is not sensitive enough to sort individual tumor cells, and fluorescence cannot be used effectively to view internal tumors and is best used with surface tumors.
CDC scientists have developed a new design for a multi-well dialysis microplate for equilibrium dialysis. The unique design accommodates a 1:1 buffer to sample ratio and provides additional room at the base of the well to enable optimal cartridge immersion and analyte diffusion. The microplate is readily adaptable into existing automated analytical systems and meets the criteria of American National Standards Institute (ANSI). The microplate is designed for measuring blood or other biological fluid samples over a wide range of sample volumes and may be used in a high throughput manner.
The National Institute on Drug Abuse's Medications Discovery Research Branch is seeking statements of capability or interest from parties interested in collaborative research to further develop, evaluate, or commercialize 4-phenylpiperazine derivatives as dopamine D3 selective ligands.