What do you mean by transneuronal degeneration?

Retrograde transneuronal degeneration or “dying backward” is a degeneration that involves neurons that lose their projection target. From: Handbook of Clinical Neurology, 2020.

What part of the brain is affected by glaucoma?

Elevated intraocular pressure in glaucoma can injure retinal ganglion cells and trigger the spread of disease to connected target vision structures of the brain. Glaucomatous degeneration has been observed in retrobulbar and intracranial optic nerve, lateral geniculate nucleus, and visual cortex of the brain.

Why does Diaschisis happen?

The decrease in information and neural firing to the distal brain area causes those synaptic connections to weaken and initiates a change in the structural and functional connectivity around that area. This leads to diaschisis.

When does retrograde degeneration occur?

Wallerian degeneration is an active process of retrograde degeneration of the distal end of an axon that is a result of a nerve lesion. It occurs between 7 to 21 days after the lesion occurs.

Can glaucoma affect memory?

All pathological factors induce neural degeneration and apoptosis, thus causing impaired visual field in patients with glaucoma and a lowered cognitive function and memory loss in patients with AD.

Is there any hope for glaucoma?

Currently, there is no cure for glaucoma, so doctors and researchers have focused most of their energies toward prevention.

Is Chromatolysis irreversible?

Chromatolysis is also reversible in CNS neurons.

What is seen during Chromatolysis?

The consistent features of chromatolysis included the condensation of the cytoplasm and chromatin, cell shrinkage, formation of “chromatin balls,” intact normal organelles, and fragmentation of cells observed by the budding of fragments enclosed in the cell membrane.