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Título: | The effects of low laser irradiation on angiogenesis in injured rat tibiae |
Fecha de publicación: | 2004 |
Editorial: | Murcia : F. Hernández |
ISSN: | 0213-3911 |
Materias relacionadas: | CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología |
Palabras clave: | Angiogenesis Tibia |
Resumen: | The influence of He-Ne laser radiation on the formation of new blood vessels in the bone marrow compartment of a regenerating area of the mid-cortical diaphysis of the tibiae of young adult rats was studied. A small hole was surgically made with a dentistry burr in the tibia and the injured area received a daily laser therapy over 7 or 14 days transcutaneously starting 24 h from surgery. Incident energy density dosages of 31.5 and 94.5 Jcm-2 were applied during the period of the tibia wound healing investigated. Light microscopic examination of histological sections of the injured area and quantification of the newly-formed blood vessels were undertaken. Low-level energy treatment accelerated the deposition of bone matrix and histological characteristics compatible with an active recovery of the injured tissue. He-Ne laser therapy significantly increased the number of blood vessels after 7 days irradiation at an energy density of 94.5 Jcm-2, but significantly decreased the number of vessels in the 14- day irradiated tibiae, independent of the dosage. These effects were attributed to laser treatment, since no significant increase in blood vessel number was detected between 8 and 15 non-irradiated control tibiae. Molecular mechanisms involved in low-level laser therapy of angiogenesis in post-traumatic bone regeneration needs further investigation. |
Autor/es principal/es: | Garavello, I. Baranauskas, V. da Cruz Hoflingl, M.A. |
Forma parte de: | Histology and histopathology |
URI: | http://hdl.handle.net/10201/21530 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 6 |
Derechos: | info:eu-repo/semantics/openAccess |
Aparece en las colecciones: | Vol.19, nº 1 (2004) |
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The effects of low laser irradiation.pdf | 4,81 MB | Adobe PDF | Visualizar/Abrir |
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