Effect of low-energy laser (He-Ne) irradiation on embryo implantation rate in the rat

Anat Stein; P. F. Kraicer; Uri Oron

doi:10.1117/12.297986

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22 December 1997 Effect of low-energy laser (He-Ne) irradiation on embryo implantation rate in the rat

Anat Stein, P. F. Kraicer, Uri Oron

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Proceedings Volume 3198, Effects of Low-Power Light on Biological Systems; (1997) https://doi.org/10.1117/12.297986
Event: BiOS Europe '97, 1997, San Remo, Italy

Abstract

Attempts to date to increase the rate of embryo implantation, for example by assisting embryo hatching from the zona pellucida, have failed. Recently, several studies have suggested the biostimulating effect of low power laser irradiation. The objective of this study was therefore to examine the potential of low power laser irradiation of the uterus to enhance embryo implantation rate in the rat. Rat potential of low power laser irradiation of the uterus to enhance embryo implantation rate in the rat. Rat blastocysts were flushed from the uterus on day 5 of gestation. They were transferred to the uteri of pseudopregnant recipients on day 4 or 5 of pseudopregnancy. One cornu of the recipient uterus was irradiated; the other was used as control. On day 5 of pregnancy, irradiation did not change implantation rate after 10 or 30 sec of irradiation while 120 sec. of irradiation significantly decreased embryonic implantation. On the other hand, on day 4 of pregnancy, 120 sec. of radiation allowed embryonic implantation to a level similar to that seen after synchronized transfer. Conclusion: He-Ne laser irradiation of the exposed rat uterus can attenuate embryo implantation rate.

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Anat Stein, P. F. Kraicer, and Uri Oron "Effect of low-energy laser (He-Ne) irradiation on embryo implantation rate in the rat", Proc. SPIE 3198, Effects of Low-Power Light on Biological Systems, (22 December 1997); https://doi.org/10.1117/12.297986

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