Effect of photobiomodulation on mitochondrial dynamics in peripheral nervous system in streptozotocin-induced type 1 diabetes in rats

Photochem Photobiol Sci. 2021 Feb;20(2):293-301. doi: 10.1007/s43630-021-00018-w. Epub 2021 Feb 18.

Abstract

There is no effective treatment to halt peripheral nervous system damage in diabetic peripheral neuropathy. Mitochondria have been at the center of discussions as important factors in the development of neuropathy in diabetes. Photobiomodulation has been gaining clinical acceptance as it shows beneficial effects on a variety of nervous system disorders. In this study, the effects of photobiomodulation (904 nm, 45 mW, 6.23 J/cm2, 0.13 cm2, 60 ns pulsed time) on mitochondrial dynamics were evaluated in an adult male rat experimental model of streptozotocin-induced type 1 diabetes. Results presented here indicate that photobiomodulation could have an important role in preventing or reversing mitochondrial dynamics dysfunction in the course of peripheral nervous system damage in diabetic peripheral neuropathy. Photobiomodulation showed its effects on modulating the protein expression of mitofusin 2 and dynamin-related protein 1 in the sciatic nerve and in the dorsal root ganglia neurons of streptozotocin-induced type 1 diabetes in rats.

Keywords: Dorsal root ganglia; Dynamin-related protein 1; Laser therapy; Mitofusin-2; Sciatic nerve.

MeSH terms

  • Animals
  • Blood Glucose / analysis
  • Diabetes Mellitus, Experimental / chemically induced
  • Diabetes Mellitus, Experimental / pathology
  • Ganglia, Spinal / metabolism
  • Ganglia, Spinal / radiation effects*
  • Lasers, Semiconductor*
  • Male
  • Mitochondrial Dynamics / radiation effects*
  • Rats
  • Rats, Wistar
  • Sciatic Nerve / metabolism
  • Sciatic Nerve / radiation effects*
  • Streptozocin / toxicity

Substances

  • Blood Glucose
  • Streptozocin