Abstract: The present inventions are compositions and methods of using at least a portion of an isolated and purified ?-crystallin polypeptide that includes one or more ?-pleated sheets and that prevents neurotoxicity and amyloidogenesis.

Abstract: The present inventions are compositions and methods of using at least a portion of an isolated and purified ?-crystallin polypeptide that includes one or more ?-pleated sheets and that prevents neurotoxicity and amyloidogenesis.

Abstract: The present inventions are compositions and methods of using at least a portion of an isolated and purified ?-crystallin polypeptide that includes one or more ?-pleated sheets and that prevents neurotoxicity and amyloidogenesis.

Abstract: The present invention compositions and methods of using at least a portions of an isolated and purified ?-crystallin polypeptide that includes one or more ?-pleated sheets and that prevents neurotoxicity and amyloidogenesis.

Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.

Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.

Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.

Abstract: The present invention compositions and methods of using at least a portions of an isolated and purified ?-crystallin polypeptide that includes one or more ?-pleated sheets and that prevents neurotoxicity and amyloidogenesis.