EVALUATION OF DIFFERENT LASERS COMBINATION EFFECT ON OSSEOUS OR CARTILAGINOUS DIFFERENTIATION OF BONE MARROW MESENCHYMAL STEM CELLS

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FEKRAZAD REZA; ASEFI SOHRAB

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Journal: JOURNAL OF LASERS IN MEDICAL SCIENCES Year:2018 | Volume:9 | Issue:SUPPL A (9TH WORLD CONGRESS OF SOLA) Page(s): 21-21

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Title

EVALUATION OF DIFFERENT LASERS COMBINATION EFFECT ON OSSEOUS OR CARTILAGINOUS DIFFERENTIATION OF BONE MARROW MESENCHYMAL STEM CELLS

Author(s)

FEKRAZAD REZA | ASEFI SOHRAB

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Abstract

Background: Tissue engineering is one of the scientific branches for regenerating impaired tissues by differentiating undifferentiated stem cells to proper target ones. Lasers are well-recognized energy sources to promote cell proliferation and differentiation. Although several studies showed the effects of lasers alone, there is no significant information on lasers combination and their effect on the cell.Methods: Mesenchymal stem cells were derived from rabbit iliac bone marrow. One control and 8 laser irradiated groups were designed as Red (R), Infra-red (IR), Blue (B), Green (G), IR-R, IR-B, R-G, B-G. Lasers were irradiated for 21 days and cell proliferation, osseous or cartilaginous differentiation were assessed during this period. SOX9, Aggrecan, COL II, and COL X expression were evaluated for cartilaginous differentiation and ALP, COL I and Osteocalcin expression were evaluated for osseous differentiation by real-time PCR.Results: Cellular proliferation was increased in all irradiated groups except G. All cartilaginous markers were significantly increased by IR and IR-B laser irradiation except COL X which was suppressed by IR-B combination therapy. ALP expression was highest in R and IR laser groups during osseous differentiation. This measure was decreased by a combination of IR laser with B and R lasers and also by G laser irradiation solely. R and B-G groups stimulated COL I expression, however, IR-B, IR-R, and G groups suppressed this factor. IR laser significantly increased osteocalcin expression, however, B, B-G and G groups had an adverse effect in this regard.Conclusion: Cartilage differentiation was stimulated by IR and IR-B lasers irradiation. The effect of single or combined lasers irradiations were not definite on osseous differentiation. It may be considered to expect stimulatory effect for red and infer-red lasers, while green laser has had an inhibitory effect on osteodifferentiation.

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APA: Copy

FEKRAZAD, REZA, & ASEFI, SOHRAB. (2018). EVALUATION OF DIFFERENT LASERS COMBINATION EFFECT ON OSSEOUS OR CARTILAGINOUS DIFFERENTIATION OF BONE MARROW MESENCHYMAL STEM CELLS. JOURNAL OF LASERS IN MEDICAL SCIENCES, 9(SUPPL A (9TH WORLD CONGRESS OF SOLA)), 21-21. SID. https://sid.ir/paper/326112/en

Vancouver: Copy

FEKRAZAD REZA, ASEFI SOHRAB. EVALUATION OF DIFFERENT LASERS COMBINATION EFFECT ON OSSEOUS OR CARTILAGINOUS DIFFERENTIATION OF BONE MARROW MESENCHYMAL STEM CELLS. JOURNAL OF LASERS IN MEDICAL SCIENCES[Internet]. 2018;9(SUPPL A (9TH WORLD CONGRESS OF SOLA)):21-21. Available from: https://sid.ir/paper/326112/en

IEEE: Copy

REZA FEKRAZAD, and SOHRAB ASEFI, “EVALUATION OF DIFFERENT LASERS COMBINATION EFFECT ON OSSEOUS OR CARTILAGINOUS DIFFERENTIATION OF BONE MARROW MESENCHYMAL STEM CELLS,” JOURNAL OF LASERS IN MEDICAL SCIENCES, vol. 9, no. SUPPL A (9TH WORLD CONGRESS OF SOLA), pp. 21–21, 2018, [Online]. Available: https://sid.ir/paper/326112/en

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