Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-21036
Hässig, M; Jud, F; Naegeli, H; Kupper, J; Spiess, B M (2009). Prevalence of nuclear cataract in Swiss veal calves and its possible association with mobile telephone antenna base stations. Schweizer Archiv für Tierheilkunde, 151(10):471-478.
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The purpose of this study was to valuate the prevalence of nuclear cataract in veal calves and to elucidate a possible impact by mobile phone base stations (MPBS). For this experiment a cohort study was conducted. A follow-up of the geographical location of each dam and its calf from conception through the fetal period up to slaughter was performed. The first trimester of gestation (organogenesis) was particularly emphasized. The activities of selected protective antioxidants (superoxide dismutase, catalase, glutathione peroxidase [GPx]) were assessed in aqueous humor of the eye to evaluate the redox status. Of 253 calves, 79 (32 %) had various degrees of nuclear cataract, but only 9 (3.6 %) calves had severe nuclear cataract. Results demonstrate a relation between the location of veals calves with nuclear cataracts in the first trimester of gestation and the strength of antennas. The number of antennas within 100 to 199 meters was associated with oxidative stress and there was an association between oxidative stress and the distance to the nearest MPBS. Oxidative stress was increased in eyes with cataract (OR per kilometer: 0.80, confidence interval 95 % 0.62,0.93). It has not been shown that the antennas actually affected stress. Hosmer-Lemeshow statistics showed an accuracy of 100 % in negative cases with low radiation, and only 11.11 % accuracy in positive cases with high radiation. This reflects, that there are a lot of other possibilities for nuclear cataract beside MPBS. Further studies on the influence of electromagnetic fields during embryonic development animal or person at risk are indicated.
|Other titles:||Prävalenz von nukleärem Katarakt bei Mastkälbern in der Schweiz und deren mögliche Assoziation mit Handy - Basisantennen Exposition|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals > Division of Herd Health|
05 Vetsuisse Faculty > Institute of Veterinary Pharmacology and Toxicology
05 Vetsuisse Faculty > Veterinary Clinic > Equine Department > Division of Ophthalmology
|DDC:||570 Life sciences; biology|
|Deposited On:||07 Oct 2009 15:28|
|Last Modified:||23 Nov 2012 16:30|
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