Fluorescence Micrographs (IMAGE)
Caption
Fluorescence micrographs of the cone cells in the retina of an adult healthy rat (top) and of an adult rat with thyroid hormone deficiency (bottom). The cones were labeled with antibodies against their opsins; green opsin is shown in green and UV/blue opsin in magenta. The healthy rat has many green cones and few UV/blue cones. The rat with thyroid hormone deficiency expresses UV/blue opsin in all cones and reduces expression of green opsin. Appearing in lighter magenta in the bottom image are cones that contain some green opsin in addition to the dominant UV/blue opsin.
Credit
© Martin Glösmann
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