Sentences with phrase «exposed pigmented cells»

«However, the initial mechanism by which the immune system identifies the monobenzone - exposed pigmented cells as dangerous, before attacking them, has been unclear so far,» reports Prof. Dr. Veit Hornung, who recently moved from the University of Bonn to the Ludwig - Maximilians - Universität in Munich.

Not exact matches

In the study, human melanocytes — the cells that produce the skin pigment melanin — were exposed to estrogen levels usually seen during pregnancy.

Her efforts allowed her to discover that single - cell plants that were exposed to aldehydes did end up with less chlorophyll — the green pigment in plants that absorbs light and plays a key role in photosynthesis.

Here we report that in addition to producing an ommochrome body pigment, the planarian flatworm Schmidtea mediterranea generates porphyrins in its subepithelial pigment cells under physiological conditions, and that this leads to pigment cell loss when animals are exposed to intense visible light.

The experiments also show that starvation increases the rate of pigment cell loss in light - exposed flatworms, which mirrors the worsening of disease symptoms some porphyria patients experience when they diet or fast.