News archive

Sonia Lain has been appointed Professor.

A mechanical valve prosthesis has a better survival record than a biological valve prosthesis, according to a large registry study from Karolinska Institutet. The finding, which is published in the European Heart Journal, can be highly significant, since the use of biological valve prostheses has increased in all age groups in recent years.

Women with polycystic ovary syndrome (PCOS) have high levels of androgens in their blood, which has been assumed able to affect fetal development during pregnancy. An international team of researchers led from Karolinska Institutet in Sweden has now identified a hormonal mechanism that might explain why women with PCOS run a higher risk of developing symptoms of mental ill-health, such as anxiety and depression, in adulthood.

New research from Karolinska Institutet shows that hypersexual disorder – known popularly as sex addiction – can be linked to hyperactive stress systems. In a stress regulation test using the cortisone drug dexamethasone, men with hypersexual disorder showed higher levels of stress hormones than controls, a finding that the researchers hope will contribute to improved therapy for this patient group. The results are published in the journal Psychoneuroendocrinology.