Caffeine: A Neuroprotectant and Neurotoxin in Traumatic Brain Injury (TBI)

Area of Science:

• Neuroscience
• Pharmacology

Background:

• Caffeine is an adenosine receptor antagonist with dose-dependent effects.
• Its role in Traumatic Brain Injury (TBI) is complex, presenting both neuroprotective and neurotoxic potential.

Purpose of the Study:

• To review and analyze the multifaceted effects of caffeine in the context of Traumatic Brain Injury (TBI).
• To explore both the beneficial and detrimental impacts of caffeine on TBI outcomes.

Main Methods:

• Literature review of experimental and clinical studies on caffeine and TBI.
• Analysis of caffeine's mechanisms of action, including adenosine receptor antagonism and effects on cellular processes.

Main Results:

• Caffeine can reduce TBI-related intracranial pressure, oxidative stress, and inflammation.
• It may enhance alertness and cognitive rehabilitation but can disrupt neural pruning in adolescents with repetitive moderate TBI (mTBI).
• Some studies indicate increased somatic discomfort in caffeine consumers.

Conclusions:

• Caffeine's impact on TBI is highly variable, depending on dose, timing, and individual factors.
• Further research is needed to optimize caffeine's therapeutic potential while mitigating risks in TBI patients.