Browsing Bergen Open Research Archive by Author "Mortensen, Jan Helge Seglem"

Now showing items 1-5 of 5

    • Folic acid in pregnancy and subsequent cancer risk in mothers and their children: An epidemiologic study in Norway, 1999–2010 

      Mortensen, Jan Helge Seglem (Doctoral thesis, 2019-06-24)
      Background: Observational studies and randomized trials have shown that maternal folic acid supplementation before and during early pregnancy decreases the risk of neural tube defects in offspring. Hence, women of fertile ...

    • Genetic aspects of preeclampsia and the HELLP syndrome 

      Haram, Kjell; Mortensen, Jan Helge Seglem; Nagy, Bálint (Peer reviewed; Journal article, 2014-06-02)
      Both preeclampsia and the HELLP syndrome have their origin in the placenta. The aim of this study is to review genetic factors involved in development of preeclampsia and the HELLP syndrome using literature search in PubMed. ...

    • Paternal characteristics associated with maternal periconceptional use of folic acid supplementation 

      Mortensen, Jan Helge Seglem; Øyen, Nina; Nilsen, Roy Miodini; Fomina, Tatiana; Tretli, Steinar; Bjørge, Tone (Peer reviewed; Journal article, 2018-05-30)
      Background: Maternal predictors of folic acid (FA) supplementation use to reduce offspring risk of neural tube defects are well known, while paternal determinants for maternal FA use are less known. Such knowledge is ...

    • Supplemental folic acid in pregnancy and childhood cancer risk 

      Mortensen, Jan Helge Seglem; Øyen, Nina; Fomina, Tatiana; Melbye, Mads; Tretli, Steinar; Vollset, Stein Emil; Bjørge, Tone (Peer reviewed; Journal article, 2016)
      Background: We investigated the association between supplemental folic acid in pregnancy and childhood cancer in a nationwide study of 687 406 live births in Norway, 1999–2010, and 799 children diagnosed later with cancer. ...

    • Supplemental folic acid in pregnancy and maternal cancer risk 

      Mortensen, Jan Helge Seglem; Øyen, Nina; Fomina, Tatiana; Melbye, Mads; Tretli, Steinar; Vollset, Stein Emil; Bjørge, Tone (Peer reviewed; Journal article, 2015-12)
      Background: There is evidence that increased intake of folate protects against the development of several types of cancer. Some studies have, however, raised concern about the safety of folate in relation to cancer risk. ...