Blar i forfatter "Wikmark, Odd Gunnar"

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    • Co-existence challenges in small-scale farming when farmers share and save seeds 

      Bøhn, Thomas; Aheto, Denis; Mwangala, Felix; Bones, Inger Louise; Simoloka, Christopher; Mbeule, Ireen; Wikmark, Odd Gunnar; Schmidt, Gunther; Chapela, Ignacio (Chapter; Bokkapittel, 2013)
      Gene flow by means of pollen and seeds in maize influences local, regional and global maize biodiversity. Developing countries are centers of diversity for maize and preserve seeds also in informal seed systems. Particularly in poor communities, seed saving and sharing often co-occur with farming on small fields. We present preliminary investigations from a small-scale maize farming community, in ...

    • Cry1Ab Protein from Bacillus thuringiensis and MON810 cry1Ab-transgenic Maize Exerts No Adjuvant Effect After Airway Exposure 

      Andreassen, Monica; Bøhn, Thomas; Wikmark, Odd Gunnar; van den Berg, Johnnie; Løvik, Martinus; Traavik, Terje; Nygaard, Unni Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-24)
      The genetically modified (GM) maize event MON810 has been inserted with a processed version of the transgene, cry1Ab, derived from the soil bacterium Bacillus thuringiensis (Bt) to express proteins with insecticidal properties. Such proteins may introduce new allergens and also act as adjuvants that promote allergic responses. While focus has been on safe consumption and hence the oral exposure to ...

    • Humoral and cellular immune responses in mice after airway administration of Bacillus thuringiensis Cry1Ab and MON810 cry1Ab-transgenic maize 

      Andreassen, Monica; Rocca, Elena; Bøhn, Thomas; Wikmark, Odd Gunnar; van den Berg, Johnnie; Løvik, Martinus; Traavik, Terje; Nygaard, Unni Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Genetically modified (GM) crops may bring new proteins with immunogenic and allergenic properties into the food and feed chains. The most commonly grown GM maize, MON810, expresses a modified version of the insecticidal Cry1Ab protein originating in the soil bacterium Bacillus thuringiensis(Bt). Immune reactions following inhalation of pollen and debris from such plants have been scarcely studied. ...

    • Implications of GM crops in subsistence-based agricultural systems in Africa 

      Aheto, Denis; Bøhn, Thomas; Breckling, Broder; van den Berg, Johnnie; Ching, Lim Li; Wikmark, Odd Gunnar (Chapter; Bokkapittel, 2013)
      <p>Africa has deep contentions on the use of GM crops in agriculture, similar to those found in Europe and elsewhere. However, it is apparent that the debate is most protracted on the continent with two entrenched viewpoints i.e. the pro-GMO and anti-GMO groups. The challenge for an acceptable consensus is attributable to a complexity of issues relative to the introduction of GM maize into small-scale ...

    • Investigations of immunogenic, allergenic and adjuvant properties of Cry1Ab protein after intragastric exposure in a food allergy model in mice 

      Andreassen, Monica; Bøhn, Thomas; Wikmark, Odd Gunnar; Bodin, Johanna; Traavik, Terje; Løvik, Martinus; Nygaard, Unni Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-04)
      BACKGROUND In genetically modified (GM) crops there is a risk that the inserted genes may introduce new allergens and/or adjuvants into the food and feed chain. The MON810 maize, expressing the insecticidal Cry1Ab toxin, is grown in many countries worldwide. In animal models, intranasal and intraperitoneal immunisations with the purified Cry1Ab proteins have induced immune responses, and feeding ...

    • With great power comes great responsibility: why ‘safe enough’ is not good enough in debates on new gene technologies 

      Kjeldaas, Sigfrid; Dassler, Tim; Antonsen, Trine; Wikmark, Odd Gunnar; Myhr, Anne Ingeborg (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-25)
      New genomic techniques (NGTs) are powerful technologies with the potential to change how we relate to our food, food producers, and natural environment. Their use may afect the practices and values our societies are built on. Like many countries, the EU is currently revisiting its GMO legislation to accommodate the emergence of NGTs. We argue that assessing such technologies according to whether ...