A protein called neurofilament light chain (NfL)—studied in humans in the context of neurodegenerative diseases and aging—is also detectable in the blood of numerous animals, and NfL levels increase ...

Likewise, blood transfusion from aged mice to younger mice can cause tissue in the younger animal to age. These studies suggest that certain factors present in the blood of older mice can induce aging ...

Blood sampling in rodents is common practice in scientific studies. Some of the refined methods widely used are the puncture of the saphenous vein or tail vein, or even tail docking. The handling ...

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