Low Power Laser Irradiation Effect with Emphasis on Injured Neural Tissues
Abstract
A few years ago, we have initiated the use of lower power helium neon (He-Ne) laser (632.8 nm) for the treatment of injured nerves of the central nervous system (CNS) and of the peripheral nervous system. In those early studies we demonstrated that the low energy He-Ne laser treatment, if commences immediately after injury, delays the posttraumatic degeneration but does not prevent it. We have suggested that the use of such treatment might be beneficial in: cases of marginally injured axons which do not degenerate as a result of the primary lesion, but will degenerate as a second event; cases of severe injuries, in combination with a treatment modality which induces or facilitates growth. Indeed, we have demonstrated the most successful growth of injured adult rabbit optic nerve (a nonregenerative system) into their own degenerative environment, which is hostile to growth when treatment is omitted. A daily irradiated for 10- 14 consecutive days combined with application at the time of the injury of soluble substances, shown to facilitate growth, resulted in abundant growth of axons from the retinal ganglion cells of the injured fibers of optic nerves, as well as from the cut tips of the injured fibers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1991
- Accession Number
- ADA246410
Entities
People
- M. Schwartz
- Michael Belkin
Organizations
- Weizmann Institute of Science