Huperzine A alleviates neuroinflammation, oxidative stress and improves cognitive function after repetitive traumatic brain injury.

Abstract

Traumatic brain injury (TBI) may trigger secondary injury cascades including endoplasmic reticulum stress, oxidative stress, and neuroinflammation. Unfortunately, there are no effective treatments targeting either primary or secondary injuries that result in long-term detrimental consequences. Huperzine A (HupA) is a potent acetylcholinesterase inhibitor (AChEI) that has been used treatment of Alzheimer's disease (AD). This study aimed to explore the neuroprotective effects of HupA in TBI and its possible mechanisms. Repetitive mild closed head injury (CHI) model was used to mimic concussive TBI. Mice were randomly assigned into three groups including sham, vehicle-treated and HupA-treated injured mice. The HupA was given at dose of 1.0 mg/kg/day and was initiated 30 min after the first injury, then administered daily for a total of 30 days. The neuronal functions including motor functions, emotion-like behaviors, learning and memory were tested. Axonal injury, reactive oxygen species (ROS), and neuroinflammation were examined as well. The results showed that injured mice treated with HupA had significant improvement in Morris water maze performance compared with vehicle-treated injured mice. HupA treatment significantly attenuated markers of neuroinflammation and oxidative stress in the injured mice. Taken together, HupA was effective in reducing neuroinflammation, oxidative stress and behavioral recovery after TBI. HupA is a promising candidate for treatment of TBI.

• Authors: Zhengrong Mei, Peiying Zheng, Xiangping Tan, Ying Wang, Bing Situ
• Journal: Metabolic brain disease (Metab Brain Dis) Vol. 32 Issue 6 Pg. 1861-1869 (12 2017) ISSN: 1573-7365 [Electronic] United States
• PMID: 28748496 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Alkaloids
• Neuroprotective Agents
• Reactive Oxygen Species
• Sesquiterpenes
• huperzine A

Topics

• Alkaloids (pharmacology, therapeutic use)
• Animals
• Behavior, Animal (drug effects)
• Brain Injuries, Traumatic (drug therapy, metabolism, pathology)
• Cognition (drug effects)
• Encephalitis (drug therapy, metabolism, pathology)
• Learning (drug effects)
• Memory (drug effects)
• Mice
• Motor Activity (drug effects)
• Neuroprotective Agents (pharmacology, therapeutic use)
• Oxidative Stress (drug effects)
• Reactive Oxygen Species (metabolism)
• Sesquiterpenes (pharmacology, therapeutic use)