Immunology and Immunotherapy of Endometriosis.

Endometriosis is one of the most common gynecological and systemic diseases, with a remarkable immune background. Patients suffer from pain and fertility reduction. Due to the distinct immune component, an immunotherapeutic approach may gain importance in the future. In endometriosis, shifts in the cell fractions of the immune system are well known. Moreover, hypoxia concomitant with inflammation causes a disturbed immune response. The removal of endometriosis has a therapeutic effect, normalizes the immune disorders, and remains the most effective causative treatment in terms of pain and infertility. A key issue is whether a similar effect can be achieved for fertility with non-invasive immunotherapy where surgery is inadvisable or cannot be performed for various reasons. Numerous immunotherapy trials, including vaccines, were conducted on animals only, although the research is encouraging. Among the promising methods of non-specific immunotherapy is the administration of an ethiodized oil contrast. Moreover, due to the significant successes of immunotherapy in oncology, the possibility of immunotherapy affecting NK cells has been postulated. NK cells are responsible for the surveillance and apoptosis of ectopic cells. Expanding the arsenal of endometriosis treatment by immunotherapy is promising due to the significant contribution of immunological factors and the limitations of current treatment methods.

Metformin administration during pregnancy - current insight.

The main mechanism of gestational diabetes mellitus (GDM) is insulin resistance, therefore using metformin as a medicine reducing insulin resistance appears to be promising. Currently, the majority of medical associations do not recommend using metformin during pregnancy as the first-line of therapy when the diet regimen is insufficient for glycaemic control. However, they do allow its administration if there is no possibility of insulin treatment. There is some evidence which suggests that using metformin during pregnancy is not related to an increased risk of obstetric complications during delivery and that its influence on the foetus can be beneficial. Since metformin crosses the placenta, the major argument for cautious use of this drug are the potential long-term effects of the treatment for the child and its development in later life. In this article, the authors attempt to discuss the use of metformin during pregnancy and the safety of the treatment in the light of current studies and recommendations.