[Source:  Medical X-Press]

Traumatic brain injuries (TBI), including concussions, can be caused by anything from sports injuries to battlefield trauma. And they can have fatal or lasting effects. The results of a severe concussion—problems with thinking, memory, movement, emotions—are clear. The causes, or underlying pathological mechanisms, were not.

A new study questions the ongoing hypothesis that the blunt force behind a traumatic brain injury causes nerve damage, or axonal injury. A team of researchers, including Cold Spring Harbor Laboratory professor Partha Mitra, found greater signs of blood vessel damage than nerve damage after performing post mortem scans on an injured brain. The findings could influence the treatment of and development of new drugs for TBI.

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