Effects of low-power laser irradiation on cell locomotion in Protozoa

KOUTNÁ, Markéta, Roman JANISCH, Marek UNUCKA, Adam SVOBODNÍK and Vojtěch MORNSTEIN. Effects of low-power laser irradiation on cell locomotion in Protozoa. Photochemistry and Photobiology. 2004, vol. 80, No 3, p. 531-534. ISSN 0031-8655.

Basic information

Original name

Effects of low-power laser irradiation on cell locomotion in Protozoa

Name in Czech

Účinek nízkovýkonového laserového záření na buněčný pohyb u prvoků

Authors

KOUTNÁ, Markéta (203 Czech Republic), Roman JANISCH (203 Czech Republic, guarantor), Marek UNUCKA (203 Czech Republic), Adam SVOBODNÍK (203 Czech Republic) and Vojtěch MORNSTEIN (203 Czech Republic)

Edition

Photochemistry and Photobiology, 2004, 0031-8655

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Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10610 Biophysics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.054

RIV identification code

RIV/00216224:14310/04:00019854

Organization unit

Faculty of Science

UT WoS

000226524400025

Keywords in English

Protozoa; laser light; cell locomotion

Tags

cell locomotion, laser light, protozoa

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Abstract

V originále

Low-power lasers are commonly used in human medicine for treatment of various pathological conditions but mechanisms of their healing effects are still poorly understood. The results of this study provide information related to these effects at the cellular level. Two different protozoan species, Euglena gracilis and Tetrahymena thermophila, were used to study changes in locomotion behavior in response to low-power lasers. The cells were irradiated at 830 nm and 650 nm generated by a semiconductor laser (99 J/cm2, 360mW) and a laser pointer (0.75 J/cm2, 5mW), respectively, and their locomotion was recorded by a TV camera and analyzed by computer software. Exposure to laser light, regardless of the wavelength, resulted in increased cell velocity in both species (P<0.001).

In Czech

Nízkovýkonný laser je využíván v četných terapeutických postupech. Tato studie přináší výsledky o účincích terapeutického laser na buněčné úrovni. U protozoí Euglena gracilis a Tetrahymena thermophila byly studovány změny v pohyblivosti po ozáření 830 nm a 650 nm laserem (99 J/cm2, 360mW) a laserovým ukazovátkem (0.75 J/cm2, 5mW). Změny v pohybu byly registrovány TV kamerou a počítačovou analýzou bylo zjištěno zrychlení pohybu.

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Links

GA301/01/1102, research and development project	Name: Ovlivnění cytoskeletu normálních a nádorových buněk fyzikálními faktory a látkami s protinádorovou aktivitou Investor: Czech Science Foundation, Influencing the cytoskeleton of normal and tumour cells by physical factors and substances with anti-tumour activity
GA304/04/1386, research and development project	Name: Účinky terapeutického laseru na úrovni buněčných struktur Investor: Czech Science Foundation, Effects of the Non-invasive Lsaser Treatment on the Cell Structure
GD301/03/H005, research and development project	Name: Molekulární a buněčná biologie v biomedicíně Investor: Czech Science Foundation, Molecular and cell biology in biomedicine