Effekt av mobiltelefoner på spermiekvalitet

[King Grub]

Mobile phones are owned by most of the adult population worldwide. Radio-frequency electromagnetic radiation (RF-EMR) from these devices could potentially affect sperm development and function. Around 14% of couples in high- and middle-income countries have difficulty conceiving, and there are unexplained declines in semen quality reported in several countries. Given the ubiquity of mobile phone use, the potential role of this environmental exposure needs to be clarified. A systematic review was therefore conducted, followed by meta-analysis using random effects models, to determine whether exposure to RF-EMR emitted from mobile phones affects human sperm quality. Participants were from fertility clinic and research centres. The sperm quality outcome measures were motility, viability and concentration, which are the parameters most frequently used in clinical settings to assess fertility.

We used ten studies in the meta-analysis, including 1492 samples. Exposure to mobile phones was associated with reduced sperm motility (mean difference − 8.1% (95% CI − 13.1, − 3.2)) and viability (mean difference − 9.1% (95% CI − 18.4, 0.2)), but the effects on concentration were more equivocal. The results were consistent across experimental in vitro and observational in vivo studies. We conclude that pooled results from in vitro and in vivo studies suggest that mobile phone exposure negatively affects sperm quality. Further study is required to determine the full clinical implications for both sub-fertile men and the general population.

Effect of mobile telephones on sperm quality: A systematic review and meta-analysis. Environment International Volume 70, September 2014, Pages 106–112.

http://www.sciencedirect.com/science...60412014001354

[BigSpawn]

Men kolos expertpanel har ju sagt att mobilstrålning är säkert?


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[Tolkia]

Jag ifrågasätter att man överhuvudtaget inte diskuterar exponeringen i de ingående studierna. Särskilt med tanke på att det bara är tre av de studier man baserar artikeln på som inte har en exponering som suger.

(Det är också ganska roligt att man refererar till en studie som indikerar negativ effekt av "wifi from laptops" när det är väl känt att värme är dåligt för spermier på den nivån att spermiekvaliteten går ned om man har tíghta byxor på sommaren eller tar ett varmt bad, och laptoparna ligger just i ... the lap.)