Low power visible light and hydrogen peroxide change intracellular calcium concentration in cardiac cells

Ronit Lavi; Asher Sheinberg; Harry Friedmann; Rachel Lubart

Low power visible light and hydrogen peroxide change intracellular calcium concentration in cardiac cells

Ronit Lavi
, Asher Sheinberg
, Harry Friedmann
, Rachel Lubart

Department of Chemistry

Bar-Ilan University

Research output: Contribution to journal › Conference article › peer-review

Abstract

The free intracellular Ca²⁺ concentration changes in cardiac myocytes were compared after visible light irradiation and upon exposure to low concentration H₂O₂. Illuminating low energy doses (6 J/cm²) of visible light, or adding low concentration of H₂O₂ (35 μM) to cardiac cells resulted in elevated oscillations of [Ca²⁺]_i that lasted for 200 min. Contraction of heart cells was also observed in parallel to calcium elevation. H₂O₂ mimicked the influence of light on [Ca²⁺]_i, as well as on the biostimulatory effects.

Original language	English
Pages (from-to)	36-44
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3569
State	Published - 1999
Event	Proceedings of the 1998 Effects of Low-Power Light on Biologigal Systems IV - Stockholm, SWE Duration: 8 Sep 1998 → 9 Sep 1998

Cite this

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title = "Low power visible light and hydrogen peroxide change intracellular calcium concentration in cardiac cells",

abstract = "The free intracellular Ca2+ concentration changes in cardiac myocytes were compared after visible light irradiation and upon exposure to low concentration H2O2. Illuminating low energy doses (6 J/cm2) of visible light, or adding low concentration of H2O2 (35 μM) to cardiac cells resulted in elevated oscillations of [Ca2+]i that lasted for 200 min. Contraction of heart cells was also observed in parallel to calcium elevation. H2O2 mimicked the influence of light on [Ca2+]i, as well as on the biostimulatory effects.",

author = "Ronit Lavi and Asher Sheinberg and Harry Friedmann and Rachel Lubart",

year = "1999",

language = "אנגלית",

volume = "3569",

pages = "36--44",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Proceedings of the 1998 Effects of Low-Power Light on Biologigal Systems IV ; Conference date: 08-09-1998 Through 09-09-1998",

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T1 - Low power visible light and hydrogen peroxide change intracellular calcium concentration in cardiac cells

AU - Lavi, Ronit

AU - Sheinberg, Asher

AU - Friedmann, Harry

AU - Lubart, Rachel

PY - 1999

Y1 - 1999

N2 - The free intracellular Ca2+ concentration changes in cardiac myocytes were compared after visible light irradiation and upon exposure to low concentration H2O2. Illuminating low energy doses (6 J/cm2) of visible light, or adding low concentration of H2O2 (35 μM) to cardiac cells resulted in elevated oscillations of [Ca2+]i that lasted for 200 min. Contraction of heart cells was also observed in parallel to calcium elevation. H2O2 mimicked the influence of light on [Ca2+]i, as well as on the biostimulatory effects.

AB - The free intracellular Ca2+ concentration changes in cardiac myocytes were compared after visible light irradiation and upon exposure to low concentration H2O2. Illuminating low energy doses (6 J/cm2) of visible light, or adding low concentration of H2O2 (35 μM) to cardiac cells resulted in elevated oscillations of [Ca2+]i that lasted for 200 min. Contraction of heart cells was also observed in parallel to calcium elevation. H2O2 mimicked the influence of light on [Ca2+]i, as well as on the biostimulatory effects.

UR - https://www.scopus.com/pages/publications/0032675311

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AN - SCOPUS:0032675311

SN - 0277-786X

VL - 3569

SP - 36

EP - 44

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the 1998 Effects of Low-Power Light on Biologigal Systems IV

Y2 - 8 September 1998 through 9 September 1998

ER -

Low power visible light and hydrogen peroxide change intracellular calcium concentration in cardiac cells

Abstract

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