Neuroprotection of lipoic acid treatment promotes angiogenesis and reduces the glial scar formation after brain injury

B. Rocamonde, S. Paradells, J. M. Barcia, C. Barcia, J. M. García Verdugo, M. Miranda, F. J. Romero Gómez, J. M. Soria*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)

Abstract

After trauma brain injury, a large number of cells die, releasing neurotoxic chemicals into the extracellular medium, decreasing cellular glutathione levels and increasing reactive oxygen species that affect cell survival and provoke an enlargement of the initial lesion.Alpha-lipoic acid is a potent antioxidant commonly used as a treatment of many degenerative diseases such as multiple sclerosis or diabetic neuropathy. Herein, the antioxidant effects of lipoic acid treatment after brain cryo-injury in rat have been studied, as well as cell survival, proliferation in the injured area, gliogenesis and angiogenesis. Thus, it is shown that newborn cells, mostly corresponded with blood vessels and glial cells, colonized the damaged area 15 days after the lesion. However, lipoic acid was able to stimulate the synthesis of glutathione, decrease cell death, promote angiogenesis and decrease the glial scar formation. All those facts allow the formation of new neural tissue. In view of the results herein, lipoic acid might be a plausible pharmacological treatment after brain injury, acting as a neuroprotective agent of the neural tissue, promoting angiogenesis and reducing the glial scar formation. These findings open new possibilities for restorative strategies after brain injury, stroke or related disorders.

Original languageEnglish
Pages (from-to)102-115
Number of pages14
JournalNeuroscience
Volume224
DOIs
Publication statusPublished - 8 Nov 2012

Keywords

  • Angiogenesis
  • Antioxidant
  • Brain injury
  • Glial scar
  • Lipoic acid
  • Neuroprotection

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