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Volumn 23, Issue 5, 2005, Pages 485-492

Polarized light (400-2000 nm) and non-ablative laser (685 nm): A description of the wound healing process using immunohistochemical analysis

Author keywords

[No Author keywords available]

Indexed keywords

COLLAGEN; HISTOLOGY; IMMUNOLOGY; LASER ABLATION; LASER SURGERY; LASER THEORY; LIGHT POLARIZATION; MEDICAL PROBLEMS;

EID: 27744443700     PISSN: 15495418     EISSN: None     Source Type: Journal    
DOI: 10.1089/pho.2005.23.485     Document Type: Article
Times cited : (70)

References (62)
  • 1
    • 0029056556 scopus 로고
    • Low-intensity laser therapy: Still not an established clinical tool
    • Basford, J.R. (1995). Low-intensity laser therapy: still not an established clinical tool. Lasers Surg. Med. 16, 331-342.
    • (1995) Lasers Surg. Med. , vol.16 , pp. 331-342
    • Basford, J.R.1
  • 2
    • 0024371768 scopus 로고
    • Photobiology of low-power laser effects
    • Karu, T.I. (1989). Photobiology of low-power laser effects. Health Phys. 56, 691-704.
    • (1989) Health Phys. , vol.56 , pp. 691-704
    • Karu, T.I.1
  • 3
    • 0026754799 scopus 로고
    • Power density and exposure time of HeNe laser irradiation are more important than total energy dose in photo-biomodulation of human fibroblasts in vitro
    • Van Breugel, H. (1992). Power density and exposure time of HeNe laser irradiation are more important than total energy dose in photo-biomodulation of human fibroblasts in vitro. Lasers Surg. Med. 12, 528-537.
    • (1992) Lasers Surg. Med. , vol.12 , pp. 528-537
    • Van Breugel, H.1
  • 4
    • 0031866038 scopus 로고    scopus 로고
    • Laser photostimulation of collagen production in healing rabbit Achilles tendons
    • Reddy, G.K., Stehno-Bittel, L., and Enwemeka. C.S. (1998). Laser photostimulation of collagen production in healing rabbit Achilles tendons. Lasers Surg. Med. 22, 281-287.
    • (1998) Lasers Surg. Med. , vol.22 , pp. 281-287
    • Reddy, G.K.1    Stehno-Bittel, L.2    Enwemeka, C.S.3
  • 5
    • 0025999732 scopus 로고
    • Effect of low-level laser therapy on wound healing after palatal surgery in beagle dogs
    • In de Braekt, M.M., van Alphen, F.A., Kuijpers-Jagtman, A.M., et al. (1991). Effect of low-level laser therapy on wound healing after palatal surgery in beagle dogs. Lasers Surg. Med. 11, 462-470.
    • (1991) Lasers Surg. Med. , vol.11 , pp. 462-470
    • In De Braekt, M.M.1    Van Alphen, F.A.2    Kuijpers-Jagtman, A.M.3
  • 6
    • 0031003577 scopus 로고    scopus 로고
    • Effects of low-energy gallium-aluminum-arsenide laser irradiation on cultured fibroblasts and keratinocytes
    • Pogrel, M.A., Chen, J.W., and Zhang, K. (1997). Effects of low-energy gallium-aluminum-arsenide laser irradiation on cultured fibroblasts and keratinocytes. Lasers Surg. Med. 20. 426-432.
    • (1997) Lasers Surg. Med. , vol.20 , pp. 426-432
    • Pogrel, M.A.1    Chen, J.W.2    Zhang, K.3
  • 7
    • 0035111593 scopus 로고    scopus 로고
    • Biostimulatory windows in low-intensity laser activation: Lasers, scanners, and NASA's light-emitting diode array system
    • Sommer, A.P., Pinheiro, A.L., Mester, A.R., et al. (2001). Biostimulatory windows in low-intensity laser activation: lasers, scanners, and NASA's light-emitting diode array system. J. Clin. Laser Med. Surg. 19, 29-33.
    • (2001) J. Clin. Laser Med. Surg. , vol.19 , pp. 29-33
    • Sommer, A.P.1    Pinheiro, A.L.2    Mester, A.R.3
  • 10
    • 0036053057 scopus 로고    scopus 로고
    • Does LLLT stimulate laryngeal carcinoma cells? An in vitro study
    • Pinheiro, A.L.B., Nascimento, S.C., and Vieira, A.L.B. (2002). Does LLLT stimulate laryngeal carcinoma cells? An in vitro study. Braz. Dent. J. 13, 109-112.
    • (2002) Braz. Dent. J. , vol.13 , pp. 109-112
    • Pinheiro, A.L.B.1    Nascimento, S.C.2    Vieira, A.L.B.3
  • 11
    • 0036176904 scopus 로고    scopus 로고
    • Effects of low-level laser therapy on malignant cells: In vitro study
    • Pinheiro, A.L.B.,: Nascimento, S.C., Vieira, A.L.B., et al. (2002). Effects of low-level laser therapy on malignant cells: in vitro study. J. Clin. Laser Med. Surg. 20, 23-26.
    • (2002) J. Clin. Laser Med. Surg. , vol.20 , pp. 23-26
    • Pinheiro, A.L.B.1    Nascimento, S.C.2    Vieira, A.L.B.3
  • 12
    • 0036306545 scopus 로고    scopus 로고
    • Low-level 809-nm diode laser-induced in vitro stimulation of the proliferation of human gingival fibroblasts
    • Kreisler, M., Christoffers, A.B., Al-Haj, H., et al. (2002). Low-level 809-nm diode laser-induced in vitro stimulation of the proliferation of human gingival fibroblasts. Lasers Surg. Med. 30, 365-369.
    • (2002) Lasers Surg. Med. , vol.30 , pp. 365-369
    • Kreisler, M.1    Christoffers, A.B.2    Al-Haj, H.3
  • 14
    • 0036900898 scopus 로고    scopus 로고
    • Wavelength frequency and color: Absolute in relative concepts?
    • Nicola, J.H., Nicola, E.M.D. (2002). Wavelength frequency and color: absolute in relative concepts? J. Clin. Laser Med. Surg. 20, 307-311.
    • (2002) J. Clin. Laser Med. Surg. , vol.20 , pp. 307-311
    • Nicola, J.H.1    Nicola, E.M.D.2
  • 15
    • 0027135971 scopus 로고
    • Dose and temporal parameters in delaying injured optic nerve degeneration by low energy laser irradiation
    • Rosner, M., Caplan, M., Cohen, S., et al, (1993). Dose and temporal parameters in delaying injured optic nerve degeneration by low energy laser irradiation. Lasers Surg. Med. 13, 611-617.
    • (1993) Lasers Surg. Med. , vol.13 , pp. 611-617
    • Rosner, M.1    Caplan, M.2    Cohen, S.3
  • 16
    • 0021476589 scopus 로고
    • Theoretical and experimental basis of biostimulation
    • Fenyo, M. (1984). Theoretical and experimental basis of biostimulation. Optics Laser Technol. 16, 209-215.
    • (1984) Optics Laser Technol. , vol.16 , pp. 209-215
    • Fenyo, M.1
  • 17
    • 0034888035 scopus 로고    scopus 로고
    • Characterization of light penetration in rat tissue
    • Melo, C. A., Lima, A.L., Brasil. I.R., et al. (2001). Characterization of light penetration in rat tissue. J. Clin. Laser Med. Surg. 19, 175-179.
    • (2001) J. Clin. Laser Med. Surg. , vol.19 , pp. 175-179
    • Melo, C.A.1    Lima, A.L.2    Brasil, I.R.3
  • 19
    • 51249184448 scopus 로고
    • Biostimulation of HeLA cells by low-intensity visible light
    • Karu, T.I., Kalendo, G.S., Letokhov, V.S., et al. (1982). Biostimulation of HeLA cells by low-intensity visible light. Noouv. Cim. D 1, 828.
    • (1982) Noouv. Cim. D , vol.1 , pp. 828
    • Karu, T.I.1    Kalendo, G.S.2    Letokhov, V.S.3
  • 20
    • 51249182885 scopus 로고
    • Stimulation of E. coli growth by laser and incoherent red light
    • Karu, T.I., Tiflova, O.A., Letokhov, V.S., et al. (1983). Stimulation of E. coli growth by laser and incoherent red light. Nuov. Cim. D 2, 1138.
    • (1983) Nuov. Cim. D , vol.2 , pp. 1138
    • Karu, T.I.1    Tiflova, O.A.2    Letokhov, V.S.3
  • 21
    • 0027270594 scopus 로고
    • Biochemical and morphological changes in Escherichia coli irradiated by coherent and no coherent 632.8-nm light
    • Bertoloni, G., Sacchetto, R., Baro, E., et al. (1993). Biochemical and morphological changes in Escherichia coli irradiated by coherent and no coherent 632.8-nm light. J. Photochem. Photobiol. B 18, 191-196.
    • (1993) J. Photochem. Photobiol. B , vol.18 , pp. 191-196
    • Bertoloni, G.1    Sacchetto, R.2    Baro, E.3
  • 22
    • 0036900898 scopus 로고    scopus 로고
    • Wavelength, frequency, and color: Absolute or relative concepts?
    • Nicola, J.H., and Nicola, E.M.D. (2002). Wavelength, frequency, and color: absolute or relative concepts? J. Clin. Laser. Med. Surg. 20, 307-311.
    • (2002) J. Clin. Laser. Med. Surg. , vol.20 , pp. 307-311
    • Nicola, J.H.1    Nicola, E.M.D.2
  • 23
    • 0025744532 scopus 로고
    • Polarized light examination and photography of the skin
    • Anderson, R.R. (1991). Polarized light examination and photography of the skin. Arch. Dermatol. 127, 1000-1005.
    • (1991) Arch. Dermatol. , vol.127 , pp. 1000-1005
    • Anderson, R.R.1
  • 25
    • 27744469031 scopus 로고    scopus 로고
    • An introduction to light interaction with human skin
    • Baranowski, G., and Krishnaswamy, A. (2004). An introduction to light interaction with human skin. RITA 11, 33-62.
    • (2004) RITA , vol.11 , pp. 33-62
    • Baranowski, G.1    Krishnaswamy, A.2
  • 26
    • 0024098014 scopus 로고
    • Investigations on biological effects of polarized light
    • Kubasova, T., Fenyo, M., Somosy, Z., et al. (1988). Investigations on biological effects of polarized light. Photochem. Photobiol. 48, 505-509.
    • (1988) Photochem. Photobiol. , vol.48 , pp. 505-509
    • Kubasova, T.1    Fenyo, M.2    Somosy, Z.3
  • 27
    • 0141605874 scopus 로고    scopus 로고
    • Polarized light (λ400-2000 nm): A description of the wound healing process using immunohistochemical analysis
    • Rechmann, P., Fried, D., Hennig, T. (eds). Bellingham, WA: SPIE
    • Campanha, B.P, Pinheiro, A.L.B., Weismann, R. et al. (2002). Polarized light (λ400-2000 nm): a description of the wound healing process using immunohistochemical analysis, in: Lasers in Dentistry IX. Rechmann, P., Fried, D., Hennig, T. (eds). Bellingham, WA: SPIE. pp. 144-149.
    • (2002) Lasers in Dentistry IX , pp. 144-149
    • Campanha, B.P.1    Pinheiro, A.L.B.2    Weismann, R.3
  • 28
    • 84948590512 scopus 로고
    • Photobiological fundamentals of low-power laser therapy
    • Karu, T.I. (1987). Photobiological fundamentals of low-power laser therapy. IEEEJ. Quant. Electro. QE-23, 1703-1717.
    • (1987) IEEEJ. Quant. Electro. , vol.QE-23 , pp. 1703-1717
    • Karu, T.I.1
  • 29
    • 0024348399 scopus 로고
    • New biological phenomena associated with laser radiation
    • Belkin, M., and Schartz, M. (1989). New biological phenomena associated with laser radiation. Health Phys. 56, 687-690.
    • (1989) Health Phys. , vol.56 , pp. 687-690
    • Belkin, M.1    Schartz, M.2
  • 30
    • 85008881697 scopus 로고    scopus 로고
    • Effect of low-level laser on healing in wounded fetal mouse limbs
    • Houghton, P.E., and Brown, J.L. (1998). Effect of low-level laser on healing in wounded fetal mouse limbs. Laser Ther. 11, 54-70.
    • (1998) Laser Ther. , vol.11 , pp. 54-70
    • Houghton, P.E.1    Brown, J.L.2
  • 31
    • 0030878041 scopus 로고    scopus 로고
    • The acceleration of wound healing is not attributed to laser skin transmission
    • Al-Watban, F.A., and Zhang, X.Y. (1997). The acceleration of wound healing is not attributed to laser skin transmission. Lasers Life Sci. 7, 237-247.
    • (1997) Lasers Life Sci. , vol.7 , pp. 237-247
    • Al-Watban, F.A.1    Zhang, X.Y.2
  • 33
    • 0021957447 scopus 로고
    • The biomedical effects of laser application
    • Mester, E., Mester, A.F., and Mester, A. (1985). The biomedical effects of laser application. Lasers Surg. Med. 5, 31-39.
    • (1985) Lasers Surg. Med. , vol.5 , pp. 31-39
    • Mester, E.1    Mester, A.F.2    Mester, A.3
  • 34
    • 0023100847 scopus 로고
    • Biostimulation of wound healing by lasers: Experimental approaches in animal models and in fibroblast cultures
    • Abergel, R.P., Lyons, R.F., Castel, J.C., et al. (1987). Biostimulation of wound healing by lasers: experimental approaches in animal models and in fibroblast cultures. J. Dermatol. Surg. Oncol. 13, 127-133.
    • (1987) J. Dermatol. Surg. Oncol. , vol.13 , pp. 127-133
    • Abergel, R.P.1    Lyons, R.F.2    Castel, J.C.3
  • 36
    • 0033963887 scopus 로고    scopus 로고
    • Myofibroblasts and matrix components in healing palatal wounds in the rat
    • Cornelissen, A.M., Stoop, R., Von den Hoff, H.W., et al. (2000). Myofibroblasts and matrix components in healing palatal wounds in the rat. J. Oral Pathol. Med. 29, 1-7.
    • (2000) J. Oral Pathol. Med. , vol.29 , pp. 1-7
    • Cornelissen, A.M.1    Stoop, R.2    Von Den Hoff, H.W.3
  • 38
    • 0027963496 scopus 로고
    • Effects of low-laser radiation on healing of open skin wounds in rats
    • Bisht, D., Gupta, S.C., Misra, V., et al. (1994). Effects of low-laser radiation on healing of open skin wounds in rats. Indian J. Med. Res. 100, 43-46.
    • (1994) Indian J. Med. Res. , vol.100 , pp. 43-46
    • Bisht, D.1    Gupta, S.C.2    Misra, V.3
  • 39
    • 0030137063 scopus 로고    scopus 로고
    • Biostimulation of wound healing by low-energy laser irradiation-a review
    • Conlan, M.J., Rapley, J.W., and Cobb, C.M. (1996). Biostimulation of wound healing by low-energy laser irradiation-a review. J. Clin. Periodontol. 23, 492-496.
    • (1996) J. Clin. Periodontol. , vol.23 , pp. 492-496
    • Conlan, M.J.1    Rapley, J.W.2    Cobb, C.M.3
  • 40
    • 0026663748 scopus 로고
    • The effect of polarized light on the release of growth factors from the U-937 macrophage-like cell line
    • Bolton, P., Dyson, M., and Young S. (1992). The effect of polarized light on the release of growth factors from the U-937 macrophage-like cell line. Laser Ther. 2, 33-42.
    • (1992) Laser Ther. , vol.2 , pp. 33-42
    • Bolton, P.1    Dyson, M.2    Young, S.3
  • 41
    • 0036176312 scopus 로고    scopus 로고
    • Effects of 1047-nm neodymium laser radiation on skin wound healing
    • Ribeiro, M.S., Silva, D.F., Maldonado, E.P., et al. (2002). Effects of 1047-nm neodymium laser radiation on skin wound healing. J. Clin. Laser Med. Surg. 20, 37-40.
    • (2002) J. Clin. Laser Med. Surg. , vol.20 , pp. 37-40
    • Ribeiro, M.S.1    Silva, D.F.2    Maldonado, E.P.3
  • 42
  • 43
    • 0025942125 scopus 로고
    • Macrophage responsiveness to laser therapy with varying power and energy densities
    • Bolton, P., Dyson, M., and Young, S. (1991). Macrophage responsiveness to laser therapy with varying power and energy densities. Laser Ther. 3, 105-111.
    • (1991) Laser Ther. , vol.3 , pp. 105-111
    • Bolton, P.1    Dyson, M.2    Young, S.3
  • 44
    • 0031202873 scopus 로고    scopus 로고
    • The current status of low-level laser therapy in dentistry. Part 1. Soft tissue applications
    • Walsh, L.J. (1997). The current status of low-level laser therapy in dentistry. Part 1. Soft tissue applications. Aust. Dent. J. 42, 247-254.
    • (1997) Aust. Dent. J. , vol.42 , pp. 247-254
    • Walsh, L.J.1
  • 45
    • 0021235822 scopus 로고
    • Effects of low-energy laser on wound healing in a porcine model
    • Hunter, J., Leonard, L., Wilson, R., et al. (1984). Effects of low-energy laser on wound healing in a porcine model. Lasers Surg. Med. 3, 285-290.
    • (1984) Lasers Surg. Med. , vol.3 , pp. 285-290
    • Hunter, J.1    Leonard, L.2    Wilson, R.3
  • 47
    • 0028313344 scopus 로고
    • Effect of low-level energy laser irradiation on wound healing. An experimental study in rats
    • Hall, G., Anneroth, G., Schennings, T., et al. (1994). Effect of low-level energy laser irradiation on wound healing. An experimental study in rats. Swed. Dent. J. 18, 29-34.
    • (1994) Swed. Dent. J. , vol.18 , pp. 29-34
    • Hall, G.1    Anneroth, G.2    Schennings, T.3
  • 48
    • 0034125564 scopus 로고    scopus 로고
    • Healing of burns after treatment with 670-nanometer low-power laser light
    • Schlager, A., Oehler, K., Huebner, K.U., et al. (2000). Healing of burns after treatment with 670-nanometer low-power laser light. J. Plast. Reconstr. Surg. 105, 1635-1639.
    • (2000) J. Plast. Reconstr. Surg. , vol.105 , pp. 1635-1639
    • Schlager, A.1    Oehler, K.2    Huebner, K.U.3
  • 49
    • 0024516666 scopus 로고
    • Effect of helium-neon and infrared laser irradiation on wound healing in rabbits
    • Braverman, B., McCarthy, R.J., Ivankovich, A.D., et al. (1989). Effect of helium-neon and infrared laser irradiation on wound healing in rabbits. Lasers Surg. Med. 9, 50-58.
    • (1989) Lasers Surg. Med. , vol.9 , pp. 50-58
    • Braverman, B.1    McCarthy, R.J.2    Ivankovich, A.D.3
  • 50
    • 0024516935 scopus 로고
    • Systemic effect of low-laser irradiation on the peripheral and central nervous system, cutaneous wounds, and burns
    • Rochkind, S., Rousso, M., Nissan, M., et al. (1989). Systemic effect of low-laser irradiation on the peripheral and central nervous system, cutaneous wounds, and burns. Lasers Surg. Med. 9, 174-182.
    • (1989) Lasers Surg. Med. , vol.9 , pp. 174-182
    • Rochkind, S.1    Rousso, M.2    Nissan, M.3
  • 51
    • 0036479956 scopus 로고    scopus 로고
    • Effect of polarized light in the healing process of pressure ulcers
    • Iordanou. P., Baltopoulos, G., Giannakopoulou, M., et al. (2002). Effect of polarized light in the healing process of pressure ulcers. Int. J. Nurs. Pract. 8, 49-55.
    • (2002) Int. J. Nurs. Pract. , vol.8 , pp. 49-55
    • Iordanou, P.1    Baltopoulos, G.2    Giannakopoulou, M.3
  • 52
    • 0029005453 scopus 로고
    • Effect of visible light on some cellular and immune parameters
    • Kubasova, T., Horwvath, M., Kocsis, K., et al. (1995). Effect of visible light on some cellular and immune parameters. Immunol. Cell Biol. 73, 239-244.
    • (1995) Immunol. Cell Biol. , vol.73 , pp. 239-244
    • Kubasova, T.1    Horwvath, M.2    Kocsis, K.3
  • 53
    • 0037267860 scopus 로고    scopus 로고
    • The use of polarised polychromatic non-coherent light alone as a therapy for venous leg ulceration
    • Medenica, L., and Lens, M. (2003). The use of polarised polychromatic non-coherent light alone as a therapy for venous leg ulceration. J. Wound Care 12, 37-40.
    • (2003) J. Wound Care , vol.12 , pp. 37-40
    • Medenica, L.1    Lens, M.2
  • 54
    • 0036125227 scopus 로고    scopus 로고
    • The effect of polarized light on wound healing
    • Monstrey. S., Hoeksema, H., Depuydt, K., et al. (2002). The effect of polarized light on wound healing. Eur. J. Plast. Surg. 24, 377-382.
    • (2002) Eur. J. Plast. Surg. , vol.24 , pp. 377-382
    • Monstrey, S.1    Hoeksema, H.2    Depuydt, K.3
  • 55
    • 0036040091 scopus 로고    scopus 로고
    • A conservative approach for deep dermal burn wounds using polarized-light therapy
    • Monstrey, S., Hoeksema, H., Saelens, H., et al. (2002). A conservative approach for deep dermal burn wounds using polarized-light therapy. Br. J. Plast Surg. 55, 420-426.
    • (2002) Br. J. Plast Surg. , vol.55 , pp. 420-426
    • Monstrey, S.1    Hoeksema, H.2    Saelens, H.3
  • 56
    • 27744515355 scopus 로고
    • Förderung der wundheilung durch bestrahlung polarisiertem licht
    • Stacker, A.D. (1989). Förderung der Wundheilung durch Bestrahlung polarisiertem Licht. Med. Welt 3-7.
    • (1989) Med. Welt , pp. 3-7
    • Stacker, A.D.1
  • 57
    • 0021844422 scopus 로고
    • Behandlung des ulcus cruris mit polarisiertem Lichtv
    • Stegmann, W. (1985). Behandlung des Ulcus cruris mit polarisiertem Lichtv [in German]. Phlebol. Proktol. 14, 96-97.
    • (1985) Phlebol. Proktol. , vol.14 , pp. 96-97
    • Stegmann, W.1
  • 58
    • 0033959028 scopus 로고    scopus 로고
    • Role of myofibroblasts during normal tissue repair and excessive scarring: Interest of their assessment in nephropathies
    • Badid, C., Mounier, N., Costa, A.M., et al. (2000). Role of myofibroblasts during normal tissue repair and excessive scarring: interest of their assessment in nephropathies. Histol. Histopathol. 15, 269-280.
    • (2000) Histol. Histopathol. , vol.15 , pp. 269-280
    • Badid, C.1    Mounier, N.2    Costa, A.M.3
  • 59
    • 7344251771 scopus 로고    scopus 로고
    • Local macrophage and myofibroblast proliferation in progressive renal injury in the rat remnant kidney
    • Yang, N., Wu, L.L., Nikolic-Paterson, D.J., et al. (1998). Local macrophage and myofibroblast proliferation in progressive renal injury in the rat remnant kidney. Nephrol. Dial. Transplant. 13, 1967-1974.
    • (1998) Nephrol. Dial. Transplant. , vol.13 , pp. 1967-1974
    • Yang, N.1    Wu, L.L.2    Nikolic-Paterson, D.J.3
  • 60
    • 0020682714 scopus 로고
    • 2 laser and conventional surgical excision of canine buccal mucosa
    • 2 laser and conventional surgical excision of canine buccal mucosa. Arch. Oral Biol. 28, 287-291.
    • (1983) Arch. Oral Biol. , vol.28 , pp. 287-291
    • Fisher, S.E.1    Frame, J.W.2    Browne, R.M.3
  • 61
    • 0023770549 scopus 로고
    • Myofibroblasts in healing laser wounds of rat tongue mucosa
    • Luomanen, M., Lehto V.P., and Meurman, J.H. (1988). Myofibroblasts in healing laser wounds of rat tongue mucosa. Arch. Oral Biol. 1, 17-23.
    • (1988) Arch. Oral Biol. , vol.1 , pp. 17-23
    • Luomanen, M.1    Lehto, V.P.2    Meurman, J.H.3
  • 62
    • 2142774473 scopus 로고
    • [Doctoral dissertation]. Birmingham, UK: University of Birmingham
    • 2 laser mucosal wounds [Doctoral dissertation]. Birmingham, UK: University of Birmingham.
    • (1993) 2 Laser Mucosal Wounds
    • Pinheiro, A.L.1


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