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Microscopy Method Observes Spinal Cells in Freely Behaving Mice

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A microscope about the size of a penny has been used to observe everyday activity of cells within the spinal cords of mice, revealing that astrocytes — cells in the nervous system that do not conduct electrical signals and were traditionally viewed as merely supportive — unexpectedly react to intense sensation. Researchers from the Salk Institute developed fluorescence imaging approaches based on two- and miniaturized one-photon microscopy. The miniaturized microscope and related imaging methods offer insight into nervous system function and could lead to novel pain...Read full article

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