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Impaired functioning of pancreatic beta cells is a key hallmark of type 2 diabetes. Beta cell function is modulated by the actions of different classes of heterotrimeric G proteins. The functional consequences of activating specific beta cell G protein signaling pathways in vivo are not well understood at present, primarily due to the fact that beta cell G protein-coupled receptors (GPCRs) are also expressed by many other tissues.

Noroviruses are now recognized as the major cause of non-bacterial gastroenteritis in all age groups, and efforts are underway to develop an effective vaccine. The lack of a robust cell culture system for human noroviruses has complicated vaccine development. Hence, norovirus virus like particles (VLPs) have played an important role in the understanding of virus structure, immune response, antigenic diversity, and vaccine design.

The invention is an imaging agent and method of use for imaging blood pools and the lymphatic system. The imaging agent binds with high affinity to serum albumin, the most abundant serum protein, and can be tagged with several isotopes making it suitable for magnetic resonance imaging or positron emission tomographic imaging. To date, only very few blood-pool tracers have been introduced for positron emission tomography. The existing ones have short half-lives (20.4 min for ¹¹C and 2.05 min for ¹⁵O) and thus can only be used in centers with an in-house cyclotron.

A plasmid encodes human CC chemokine receptor CX3CR1/CMKBRL1 as described in DNA Cell Biol. 1995 Aug;14(8):673-80, and developed in the laboratory of Philip M. Murphy at the National Institute of Allergy and Infectious Diseases.

A plasmid encodes human interleukin-8 (IL-8) receptor CXCR1. IL-8 is a chemo-attractant cytokine that attracts and activates neutrophils in inflammatory regions.

A plasmid encodes human monocyte chemoattractant protein-1 (MCP-1/CCL2). MCP-1/CCL2 is a chemokine that regulate migration and infiltration of monocytes/macrophages.

A plasmid encodes human fMLP receptor. Formyl peptide receptor (FPR, fMLP receptor) is a G protein-coupled receptor and mediates anti-inflammatory reactions in human neutrophils and other tissues.

A plasmid encodes human formyl peptide receptor-like 1 (FPRL1/FPR2).

Plasmid DNA (clone pNL4-3) that produces infectious HIV-1 virus particles in a wide variety of cells as described in the J Virol. 1986 Aug;59(2):284-91 and developed in the laboratory of Dr. Malcolm Martin at the National Institute of Allergy and Infectious Diseases.