Abstract
The occurrence of sudden infant death syndrome (SIDS) has been linked to several genetic risk factors, e.g. genes involved in the neuroadrenergic system, variations in serotonin reporter genes or mutations in long-QT syndrome genes. Additionally, polymorphisms in genes with impact in sleep disorder syndromes have been proposed to be of importance as genetic risk factors for SIDS. In this study, we investigated the polyalanine length variation of PHOX2B and the −794 CATT repeat in the MIF promoter region as well as single nucleotide polymorphisms (rs28462174, rs28727473, rs16853571, rs755622, rs12485058, rs12485068, rs4822444, rs4822445, rs4822446, rs4822447 and rs2012124) in both genes in 278 SIDS cases and 240 controls. No significant differences were found in allele distribution of neither length polymorphisms nor single nucleotide polymorphisms between SIDS cases or controls. Therefore, an importance of these variations for the occurrence of SIDS could be ruled out.
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Compliance with ethical standards
The German SIDS study providing the SIDS cases was funded by the German Ministry of Education, Science, Research and Technology (grant number 01ED9401). All procedures performed were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
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The authors declare that they have no competing interests.
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Table S1
SNP primer sequences and concentrations (DOCX 17 kb)
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Poetsch, M., Todt, R., Vennemann, M. et al. That’s not it, either-neither polymorphisms in PHOX2B nor in MIF are involved in sudden infant death syndrome (SIDS). Int J Legal Med 129, 985–989 (2015). https://doi.org/10.1007/s00414-015-1213-3
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DOI: https://doi.org/10.1007/s00414-015-1213-3