In this confocal microscopy image of an adult mouse’s hippocampus by Sandra Dieni of the Institute of Anatomy and Cell Biology at Albert-Ludwigs University in Germany, reactive astroglia (star-shaped cells that support neurons in the brain, here colored pale yellow) have proliferated and enlarged in response to neuronal activity over time.
The red area is a milk duct surrounded by connective tissue in a biopsy from a patient with breast cancer. Connective tissue cells are green and collagen fibres are turquoise. Confocal microscopy and second harmonic generation by Arthur Chien, Ellie Kable and Dr Lilian Soon, University of Sydney. (Australian Microscopy and Microanalysis Research Facility)
Olympus Microscopy Resource Center | Confocal Microscopy - Spectral Bleed-Through Artifacts in Confocal Microscopy