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Two scientific studies led by researchers at Karolinska Institutet are expected to form the basis of new international recommendations for the treatment of medical abortions and miscarriages – recommendations that may also lead to a change in clinical practice in Sweden.

Reduction systems and protection of cells against oxidative stress are processes not entirely dependent on the electron carrier NADPH as generally believed. Researchers at Karolinska Institutet and Montana State University have now demonstrated how mice that are incapable of using the primary NADPH-dependent systems in their livers cope perfectly, as long as they get the amino acid methionine via their food. This discovery is published in the journal Nature Communications.

Studies conducted at Karolinska Institutet and Uppsala University show that some indigenous groups in the Andes of northern Argentina have increased resistance to arsenic. The researchers also identified the gene that underlies the altered metabolism and protects against exposure to arsenic. This study is the first to show that some humans have genetically adapted to a polluted environment.