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Effect of low energy laser on the growth and regeneration of capillaries (1990)

Maier, M. ; Haina, D. ; Landthaler, M.

Springer

Lasers in medical science 5 (1990), S. 381-386

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ISSN: 1435-604X

Keywords: HeNe laser irradiation ; Biostimulation ; Wound healing ; Capillary regeneration

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine , Physics , Technology

Notes: Abstract Laser light of low energy is discussed to have an accelerating effect on wound healing. The aim of the present study was to proof whether HeNe laser irradiations have a positive effect on regeneration of capillaries. For this purpose aluminium chambers were implanted in the dorsal skin flap of Syrian hamsters. After coagulation of blood vessels by means of an argon laser the tissue was irradiated daily with the low energy light of a HeNe laser. Regeneration of capillaries was studied by means of intravital microscopy. The results of the study revealed a positive effect of low dose HeNe laser irradiation on the regeneration of capillaries at day 5 after the coagulation. The measurable part of the capillaries was about 27% higher for the irradiated animals compared to controls.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02032595

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Auswirkungen direkter Laserbestrahlung auf menschliche Lymphocyten (1978)

Mester, E. ; Nagylucskay, S. ; Waidelich, W. ; [et al.]

Springer

Archives of dermatological research 263 (1978), S. 241-245

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ISSN: 1432-069X

Keywords: Biological effects of Laser ; Lymphocytes ; Light sensitivity of lymphocytes ; Wound healing ; Biologische Laserwirkung ; Lymphocyten ; Lichtempfindlichkeit von Lymphocyten ; Wundheilung

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Description / Table of Contents: Zusammenfassung In-vitro-Experimente an menschlichen Lymphocyten zeigten, daß durch Bestrahlungen mit kohärentem Licht eines He-Ne-Lasers eine immunsuppressive Wirkung erzielt wird. Parallelversuche mit inkohärentem Licht der gleichen Wellenlänge ergaben nur eine Wirkung (80% der Laserwirkung), wenn das Licht linear polarisiert war.

Notes: Summary In vitro experiments with human lymphocytes showed that if irradiations with coherent light of He-Ne-laser were performed an immune suppressor effect is obtained. Using incoherent light of the same wavelengh, effects only occur (80% compared to the laser) if the light is linear polarized.