Protein Blobs!

The African turquoise killifish lives in transitory ponds in East Africa that form during the rainy season. As the fish nears the end of its 4- to 6-month life, it develops a range of age-related diseases, including cataracts and brain-related changes that resemble neurodegenerative disorders like Alzheimer’s in humans. Its brief life span — much shorter than that of a lab mouse, for example — and rapid natural aging make it an ideal model for studying aging in vertebrates. The Stanford team conducted an extensive analysis of the proteins in killifish at various stages of youth and maturity. In the aging killifish, they discovered protein aggregates in all the tissues that they looked at: not only the brain but also the heart, gut, liver, muscle, skin and testis. More than half of the aggregating proteins seemed to show an intrinsic tendency to aggregate in further experiments.

Protein Blobs Linked to Alzheimer’s Affect Aging in All Cells —
Photo Credit: MDI Biological Laboratory; Itamar Harel

Fascinating article. And regarding the video clip, sorry I couldn’t resist.


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