Simple and Rapid Assay to Detect Acute Subtype B and Group M HIV-1 Infections

Within recent years, point-of-care (POC) testing has allowed for many individuals to be screened for and provided with HIV test results. It is critical to be able to accurately detect acute HIV infections as this is a stage where the risk of transmission is great. Additionally, early HIV detection could lead to less high-risk behavior, thereby reducing transmission. Currently, there are no rapid, cost-effective diagnostic tests sensitive enough to detect acute HIV-1 infections for the POC setting.

A Full-Length Infectious cDNA Clone of Zika Virus from the 2015 Epidemic in Brazil as a Genetic Platform for Studies of Virus-Host Interactions and Vaccine Development

An arthropod-borne virus, Zika virus (ZIKV), has recently emerged as a major human pathogen. Associated with complications during perinatal development and Guillain-Barré syndrome in adults, ZIKV raises new challenges for understanding the molecular determinants of flavivirus pathogenesis. This underscores the necessity for the development of a reverse genetic system based on an epidemic ZIKV strain. This technology relates to the generation and characterization in cell cultures of an infectious cDNA clone of ZIKV isolated from the 2015 epidemic in Brazil.

Cannabinoid Receptor Meditating Compounds for Metabolic Disease

There is evidence that the metabolic effects of endocannabinoids are mediated by CB1 receptors in peripheral tissues. While prior attempts at generating CB1 receptor blockers have had serious neuropsychiatric side effects, inventors at NIH have discovered compounds that block CB1 receptors with reduced brain penetrance. In addition, some of these compounds also have a direct inhibitory effect on inducible nitric oxide synthase (iNOS), whereas another group of the compounds directly activates AMP kinas.

Octopod (8-Pointed Star) Iron Oxide Nanoparticles Enhance MRI T2 Contrast

The octopod-shaped iron oxide nanoparticles of this technology significantly enhance contrast in MRI imaging compared to spherical superparamagnetic iron oxide nanoparticle T2 contrast agents. These octopod iron oxide nanoparticles show a transverse relaxivity that is over five times greater than comparable spherical agents. Because the unique octopod shape creates a greater effective radius than spherical agents, but maintains similar magnetization properties, the relaxation rate is improved. The improved relaxation rate greatly enhances the contrast of images.

Efficient mRNA-Based Genetic Engineering of Human NK Cells with High-Affinity CD16 and CCR7

A highly efficient method to genetically modify natural killer (NK) cells to induce expression of high affinity CD16 (HA-CD16) through mRNA electroporation, to potentiate NK cell-mediated antibody-dependent cellular cytotoxicity (ADCC). ADCC is mediated by CD16+ NK cells following adoptive NK cell transfer, but most humans express CD16 which has a relatively low affinity for IgG1 antibodies.

Encapsulated Streptococcus Compositions and Methods for Pneumococcal Vaccine, Probiotic, and Diagnostic Assay Development

Streptococcus pneumoniae (S. pneumoniae) bacteria, or pneumococcus, can cause many types of illnesses. These range from ear and sinus infections to life-threatening conditions such as pneumonia, bloodstream infections, and meningitis. Pneumococci are surrounded by a polysaccharide capsule, which is thought to help it evade the immune system. Presently, over 90 known serotypes of S. pneumoniae have been identified, of which only a minority produce the majority of pneumococcal infections; a serotype is defined by a unique pneumococcal capsule structure.

Real-Time RT-PCR Detection of Scrub Typhus Total Nucleic Acid Assay with High Sensitivity and Specificity

Scrub typhus is a bacterial disease caused by Orientia tsutsugamushi (O. tsutsugamushi or Ots) that is spread to people through bites of infected chiggers (larval mites). The most common symptoms can include fever, headache, body aches, and sometimes rash. Severe illness can lead to organ failure and bleeding which can be fatal if left untreated. Most cases of scrub typhus occur in Asia Pacific countries, however, recent reports document establishment in the Arabian Peninsula, Chile, and possibly Kenya.

CC Chemokine Receptor 5 DNA, New Animal Models and Therapeutic Agents for HIV Infection

Chemokine receptors are expressed by many cells, including lymphoid cells, and function to mediate cell trafficking and localization. CC chemokine receptor 5 (CCR5) is a seven-transmembrane, G protein-coupled receptor (GPCR) which regulates trafficking and effector functions of memory/effector T-lymphocytes, macrophages, and immature dendritic cells. Chemokine binding to CCR5 leads to cellular activation through pertussis toxin-sensitive heterotrimeric G proteins as well as G protein-independent signalling pathways.