研究のタイプ: 医学/生物学の研究 (experimental study)

[ヒト精子の先体反応、頭部の形態、透明帯結合能に対する900 MHz GSM携帯電話のパルス電磁界の影響] med./bio.

The effect of pulsed 900-MHz GSM mobile phone radiation on the acrosome reaction, head morphometry and zona binding of human spermatozoa.

掲載誌: Int J Androl 2011; 34 (1): 20-26

この研究は、ヒト精子(12人の健常ボランティアから収集)の受精能力に対する無線周波電磁界RF-EMF:SAR2.0 W/ kg の900MHz携帯電話電磁界の1時間ばく露)の影響を、ばく露直後(T1)、2時間後(T2)、24時間後(T3)に調べた。その結果、先体反応に対するRF-EMFばく露の影響はなかった;ばく露群と対照群で、精子頭部面積(9.2 ± 0.7 μm2 vs. 18.8 ± 1.4 μm2)と頭部面積中の先体の割合(21.5 ± 4% vs. 35.5 ± 11.4%)となり、対照群に比べばく露群で減少していた;半切透明帯検査による精子透明帯の結合能がばく露群で対照群より低下していた、などの所見を報告している。

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研究目的(著者による)

The objective of the study was twofold: 1) to investigate the effect of radiofrequency electromagnetic field exposure on sperm head morphometry and the acrosome response and 2) to evaluate the consequence of exposure on the spermatozoa's zona pellucida-binding capacity.

詳細情報

Semen samples were collected from 12 healthy donors. Spermatozoa were investigated immediately, 2 h and 24 h after exposure.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 900 MHz
ばく露時間: continuous for 1 h

ばく露1

主たる特性
周波数 900 MHz
タイプ
  • electromagnetic field
波形
  • pulsed
ばく露時間 continuous for 1 h
ばく露装置
ばく露の発生源/構造
  • 詳細不明
チャンバの詳細 exposure chamber placed vertically inside a Forma CO2 incubator
ばく露装置の詳細 samples placed in glass Petri dishes in the exposure chamber with the plane of the culture medium parallel to the electric field; temperature-controlled water circulated through a thin rectangular glass-fibre-moulded waterbed underneath the Petri dishes
Sham exposure A sham exposure was conducted.
パラメータ
測定量 種別 Method Mass 備考
SAR 2 W/kg - - - -

Reference articles

  • Falzone N et al. (2008): [ヒト精子のミトコンドリア膜電位および運動性に対する900 MHzGSMパルス波放射のインビトロでの影響]
  • Leszczynski D et al. (2002): [ヒトの上皮細胞の携帯電話によるhsp27/p38MAPKストレスの非熱活性化:がん関連とBBB関連効果の分子的メカニズム]

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
調査の時期:
  • ばく露後

研究の主なアウトカム(著者による)

The irradiation did not affect the acrosome reaction. The analysis of morphometric parameters revealed a statistically significant reduction in all the morphometric parameters of exposed sperm samples compared with unexposed controls. There was a statistically significant reduction in zona pellucida binding in exposed sperms compared with that in controls.
The authors conclude that although radiofrequency electromagnetic field exposure did not adversely affect the acrosome reaction, it had a significant effect on sperm morphometry. In addition, a significant decrease in sperm binding to the hemizona was observed. These results could indicate a significant effect of radiofrequency electromagnetic field on sperm fertilization potential.

研究の種別:

研究助成

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