Locus DR in primary Sjögren's syndrome.

The primary Sjögren's syndrome (pSS) is an autoimmune exocrinopathy which is presenting with progressive dryness of the eyes and the mouth, changes in the parotid glands and not rarely with systemic (extraglandular) manifestations. The development of the immunogenetics proved that the course of the disease is genetically determined. HLA-antigens, associated with pSS differ in the separate races, populations and ethnic groups.