All articles tagged with #anoxia
A new study shows that birds’ inner retina operates without oxygen because retinal blood vessels are absent; instead, the pecten oculi delivers large amounts of glucose and helps remove lactic acid, enabling anaerobic glycolysis to power retinal cells. This anoxia tolerance supports high‑acuity vision and potential migration benefits, and could inform research into protecting brain tissue during strokes.
Researchers have gained new insights into the neurological process of dying, specifically the "wave of death" that marks the transition to total cessation of brain activity. The study, conducted on rats, found that this wave originates in the neocortex's layer 5 pyramidal neurons and can potentially be reversed if resuscitation occurs within a specific time window. The findings challenge the notion of a flat electroencephalogram (EEG) as a definitive marker of ceased brain functions and offer new possibilities for preserving brain function during resuscitation.