Sister chromatid exchanges in human lymphocytes after exposure to pulse-wave ultrasound.

Ozawa, Nobuki; Yajima, Akira; Soh, Kan-Ichi; Takabayashi, T.; Sato, Shinji; Sato, Akira; Suzuki, Masakuni

doi:10.1620/tjem.143.473

Cited by 12 publications

(2 citation statements)

References 6 publications

(2 reference statements)

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“…This value was about five times higher than that obtained from the results of lymphocytes by Ozawa et al (1984) in in vitro system, using the same exposure system. The exposure acoustic power used by Liebeskind et al In comparison with these values of acoustic power, the critical acoustic power we obtained was extremely high.…”

Section: Discussioncontrasting

confidence: 64%

Sister Chromatid Exchanges in Mouse after Exposure to Pulse-Wave Ultrasound in Utero.

Shintaku

Takabayashi

Sasaki

et al. 1993

Tohoku J. Exp. Med.

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The induction of sister chromatid exchanges (SCEs) was investigated in mice after a ten min exposure, in vivo, to 2 MHz focused, pulse-wave ultrasound with a pulse repetition rate of 1000 Hz, pulse duration of 10 ,u sec. The bone marrow cells of the pregnant female mice and the fetal liver cells were analyzed. The cell cycle specific metaphase patterns were additionally evaluated. In the bone marrow cells, the mean frequencies of SCEs were 2.77 in control, 3.56 in the cells exposed to ultrasound at 586.2 mW/cm2 (spatial average temporal average, SATA); in the fetal liver cells, 2.64 in control, 3.84 in the cells exposed. The frequencies of SCEs significantly were increased by the treatment. Faster cell kinetics was observed in fetal liver cells than bone marrow cells of pregnant female. But there was no cell-growth inhibitory effect of ultrasound on both bone marrow and fetal liver cells. In fetal liver cells, the critical acoustic power was 160.0-278.9 mW/cm2 (SATA), sister chromatid exchange; ultrasound; in vivo

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Section: Discussioncontrasting

confidence: 64%

Sister Chromatid Exchanges in Mouse after Exposure to Pulse-Wave Ultrasound in Utero.

Shintaku

Takabayashi

Sasaki

et al. 1993

Tohoku J. Exp. Med.

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“…Wegner et al (1980) Kunze-Muhl (1981) ) Ozawa et al (1983, 1984 Galperin-Lemaitre et al Barnett and Kossoff (1975) ( 1 984) Hill et al (1969) Au et al (1982) Burr et al (1978) Barrass et al (1982) Morris et al (1978) 'The mean SCE frequency determined from the table in the published paper for exposed and control groups was 8.633 (SD = 2.617) and 7.279 tThey report that SCE frequency is related to the temporal peak intensity not the temporal average intensity. This may be a contributing factor (SD = 1.432).…”

Section: Journal Of Clinical Ultrasoundmentioning

confidence: 99%

Compilation of reported biological effects data and ultrasound exposure levels

Stewart¹,

Stewart²,

Moore³

et al. 1985

J of Clinical Ultrasound

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A compilation of reports of biological effects and related ultrasound exposure levels can be useful in the identification of trends in effects data that may be developing in the literature. The exposures in the experiments reviewed were at frequencies used in medicine. For short (10 minutes or less) continuous wave exposure, with the exception of behavioral effects where variable results have been observed, this tabulation did not identify any in vivo or in vitro effects at spatial peak, temporal average (SPTA) intensities less than 100 mW/cm2. However, a number of effects using pulsed sources with SPTA intensities under this level have been reported. There are several frequently recurring topics in recent reports which include developmental effects and microstructure changes at the cellular level. In addition to animal investigations, there are some limited human epidemiological studies reporting an association between medical ultrasound exposure in utero and developmental effects. Although sufficient research has not been completed to draw conclusions, the findings deserve further investigation. A systematic pattern of directed research on a large scale is not apparent. The available data consist of many scattered studies conducted by individual investigators and groups throughout the world.

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Cytogenetic monitoring of cardiology unit hospital workers exposed to doppler ultrasound

Garaj‐Vrhovac

Kopjar

2000

J. Appl. Toxicol.

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Sister chromatid exchanges in human lymphocytes after exposure to pulse-wave ultrasound.

Cited by 12 publications

References 6 publications

Sister Chromatid Exchanges in Mouse after Exposure to Pulse-Wave Ultrasound in Utero.

Sister Chromatid Exchanges in Mouse after Exposure to Pulse-Wave Ultrasound in Utero.

Compilation of reported biological effects data and ultrasound exposure levels

Cytogenetic monitoring of cardiology unit hospital workers exposed to doppler ultrasound

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