title: The low-level laser on acute myositis in rats.
abstract: OBJECTIVE
  To analyze the effects of the low-level laser therapy in the acute myositis induced in rats.
  
  
  METHODS
  Twelve rats were subjected to bilateral ovariectomy for inducing osteoporosis. After surgery, they were divided into two groups: Ovariectomy-control group (G1, n=6), receiving 0.5 ml distilled water by gavage for 30 days, and Ovariectomy plus mastruz group (G2, n=6), receiving 0.5 ml of the hydroalcoholic extract of mastruz at 10% concentration (50mg) daily, for the same period. Then, the blood of the animals was collected for further biochemical analysis (liver function) and tibia and liver were removed for histological and histomorphometric analyses.
  
  
  RESULTS
  In the MT group there was a statistic significant decrease in the number of inflammatory cells, related to the MI group (p<0.05), increase in the fibroblastic proliferation, when compared to groups C and MI related to MT group (p<0.01) and statistic significant edema regression (p=0.0400) in the MT group
  
  
  CONCLUSIONS
  The low-level laser therapy was efficient in the reduction of the inflammatory process, increase of the fibroblastic proliferation and the reduction of the edema.
authors.affiliation: Universidade do Vale do Paraiba, Sao Jose dos Campos, SP, Brazil.
authors.forename: Ana Flávia Machado de
authors.initials: AF
authors.lastname: Carvalho
authors.affiliation: Faculdade Integral Diferencial, Teresina, PI, Brazil.
authors.forename: Paula Fernanda Batista de
authors.initials: PF
authors.lastname: Sousa
authors.affiliation: UNIVAP, Sao Jose dos Campos, SP, Brazil.
authors.forename: Maura Cristina Porto
authors.initials: MC
authors.lastname: Feitosa
authors.affiliation: UNIVAP, Sao Jose dos Campos, SP, Brazil.
authors.forename: Nayana Pinheiro Machado de Freitas
authors.initials: NP
authors.lastname: Coelho
authors.affiliation: FACID, Teresina, PI, Brazil.
authors.forename: Esmeralda Maria Lustosa
authors.initials: EM
authors.lastname: Barros
authors.affiliation: Hospital Getúlio Vargas, Teresina, PI, Brazil.
authors.forename: Valrian Campos
authors.initials: VC
authors.lastname: Feitosa
authors.affiliation: UNIVAP, Sao Jose dos Campos, SP, Brazil.
authors.forename: Emília Angela Loschiavo
authors.initials: EA
authors.lastname: Arisawa
mesh_terms: D000208:Acute Disease; D000818:Animals; D004487:Edema / Q000532:radiotherapy*; D005347:Fibroblasts / Q000473:pathology; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D028022:Low-Level Light Therapy / Q000379:methods*; D008297:Male; D023421:Models, Animal; D018482:Muscle, Skeletal / Q000473:pathology; D009220:Myositis / Q000139:chemically induced / Q000532:radiotherapy*; D011829:Radiation Dosage; D011897:Random Allocation; D017208:Rats, Wistar