Suppressive effect of low-level laser therapy on tracheal hyperresponsiveness and lung inflammation in rat subjected to intestinal ischemia and reperfusion.

Lasers in Medical Science
Flávia Mafra de LimaFlavio Aimbire

Abstract

Intestinal ischemia and reperfusion (i-I/R) is an insult associated with acute respiratory distress syndrome (ARDS). It is not known if pro- and anti-inflammatory mediators in ARDS induced by i-I/R can be controlled by low-level laser therapy (LLLT). This study was designed to evaluate the effect of LLLT on tracheal cholinergic reactivity dysfunction and the release of inflammatory mediators from the lung after i-I/R. Anesthetized rats were subjected to superior mesenteric artery occlusion (45 min) and killed after clamp release and preestablished periods of intestinal reperfusion (30 min, 2 or 4 h). The LLLT (660 nm, 7.5 J/cm(2)) was carried out by irradiating the rats on the skin over the right upper bronchus for 15 and 30 min after initiating reperfusion and then euthanizing them 30 min, 2, or 4 h later. Lung edema was measured by the Evans blue extravasation technique, and pulmonary neutrophils were determined by myeloperoxidase (MPO) activity. Pulmonary tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), intercellular adhesion molecule-1 (ICAM-1), and isoform of NO synthase (iNOS) mRNA expression were analyzed by real-time PCR. TNF-α, IL-10, and iNOS proteins in the lung were measured by the enzyme-linked immunoassay ...Continue Reading

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Citations

Oct 26, 2013·Lasers in Medical Science·Xue-yan WangYing-xin Li
Aug 13, 2013·Photochemistry and Photobiology·Adriano F LimaCarlos A de Souza Costa
Jul 15, 2015·Lasers in Medical Science·Mohammad Ashrafzadeh TakhtfooladiSamaneh Shabani
Mar 26, 2013·Journal of Photochemistry and Photobiology. B, Biology·Renata R MarinhoSara M Thomazzi
Jun 15, 2016·Lasers in Medical Science·Marcele Florêncio das NevesMário Oliveira Lima
Jun 7, 2019·International Journal of Radiation Biology·Tomasz WalskiMałgorzata Komorowska
Jun 7, 2019·Current Opinion in Oncology·Jolien RobijnsJeroen Mebis
Aug 8, 2020·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Thaís Fernanda FazzaMaycon Moura Reboredo
Nov 27, 2020·Lasers in Medical Science·Sepideh SoheilifarNavid Naghdi
May 18, 2021·Communicative & Integrative Biology·Marootpong PooamMargaret Ahmad
Jul 3, 2021·Life·Brenda Thaynne Lima de MatosRogerio Leone Buchaim

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