[Vitamin D in normal and pathologically changed endometrium].

More and more evidence from research confirms the significance of vitamin D (VD) in the development of endometrial pathologies. Apart from the well known role of VD in regulation of calcium levels, VD acts as modulator to many genes involved in cell growth, immunological functions and protein synthesis. The newest research shows that VD acts multidirectionally and its common deficiency has a causal link to the pathogenesis of many gynecological and cancerous conditions. It is postulated that VD affects the endometrium via various mechanisms. The discovery that most tissues have VD receptors was ground-breaking in understanding its role in various medical conditions, including the neoplasmal development mechanism, but the degree, to which the VD metabolism in the eutopic endometrium during pathological conditions is impaired, has not yet been explained.