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The significance of mitochondrial haplogroups in preeclampsia risk

Wendelboe Olsen, K.; Hedley, P. L.; Hagen, C. M.; Rode, L.; Placing, S.; Sundberg, K.; Shalmi, A.-C.; Sundberg, K.; Noerremolle, A.; Tabor, A.; Elson, J. L.; Christiansen, M.

2023-05-23 obstetrics and gynecology
10.1101/2023.05.22.23290334 medRxiv
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ObjectiveTo determine whether mitochondrial haplogroups function as disease-modifiers or as susceptibility factors in preeclampsia using a traditional haplogroup association model. MethodsThis retrospective study haplotyped 235 control and 78 preeclamptic pregnancies from Denmark using either real-time PCR or Sanger sequencing depending on the rarity of the haplogroup. ResultsNo significant association between haplogroups and the risk of preeclampsia was found, nor was any role for haplogroups in disease severity uncovered. ConclusionMitochondrial haplogroups are not associated with preeclampsia or the severity of preeclampsia in the Danish population. However, this study cannot exclude a role for less common mtDNA variation. Models that can examine these should be applied in preeclamptic patients. Graphical Abstract O_FIG O_LINKSMALLFIG WIDTH=169 HEIGHT=200 SRC="FIGDIR/small/23290334v1_ufig1.gif" ALT="Figure 1"> View larger version (58K): org.highwire.dtl.DTLVardef@39978aorg.highwire.dtl.DTLVardef@10c1f9corg.highwire.dtl.DTLVardef@ef4cbdorg.highwire.dtl.DTLVardef@974637_HPS_FORMAT_FIGEXP M_FIG C_FIG

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