The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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The Effect of Low Power Laser Irradiation on acute pain of Rats Induced by Wound

저강도 레이저가 흰쥐 창상 후 급성통증에 미치는 영향

  • Kim Dong-Hyun (Department of Occupational Therapy, Sorabol College) ;
  • Baek Su-Jeong (Office of Physical Therapy, Catholic University of Pusan) ;
  • Kim Suk-Bum (Major in Physical Therapy, Department of Rehabilitation Science, Graduate School, Daegu University) ;
  • Song Ju-Min (Department of Physical Therapy, Division of Health Science, Daegu University) ;
  • Kim Jin-Sang (Department of Physical Therapy, College of Rehabilitation Science, Daegu University)
  • 김동현 (서라벌대학 작업치료과) ;
  • 백수정 (부산카톨릭대학교 물리치료학과) ;
  • 김석범 (대구대학교 대학원 재활과학과 물리치료전공) ;
  • 송주민 (대구대학교 보건과학부 물리치료전공) ;
  • 김진상 (대구대학교 재활과학대학 물리치료학과)
  • Published : 2002.06.01
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Abstract

This study was performed, using c-fos and Substance P, to investigate the effect of GaAlAs laser on acute pain model induced by wound in lumbar region's spinal level. The test group was divided into control and experimental group. Control group is shamed group(c-fos and substance P expression after non-irradiation by a GaAlAs laser), The experimental group was divided into two subgroups: one is experimental group I (c-fos expression after irradiation by a GaAlAs laser), and the other is experimental group II (substance P expression after irradiation by a GaAlAs laser). The results of this study were as following: 1. The numbers of c-fos immunoreactive neuron in spinal cord was increased markedly 1 day after wound, and decreased gradually from 1 day to 2 days in wound with GaAlAs laser irradiation. 2. The changes of the average percentages of substance P immunoreactive neurons in spinal cord was increased markedly 1 day after wound, and decreased gradually from 1 day to 2 days in wound with GaAlAs laser irradiation. Therefore, decreasing the changes of c-fos and substance P expression after irradiation by a GaAlAs laser indicates and GaAlAs laser have effect on pain control.

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