title: [Cellular composition of the lamina propria mucous membrane in different segments of ureter in the newborns and children of first years of life].
abstract: Cellular composition of the lymphoid tissue in the superior and inferior segments of ureteral mucous membrane was studied using quantitative method in newborns, infants and children of the first years of life on autopsy material (n=12). It was found that during the first years of life lymphoid tissue was poorly developed in the lamina propria of the ureteral mucous membrane and it was represented by diffuse lymphoid tissue. Processes of lymphocytopoiesis were not expressed, while high degree of cell destruction was observed that was increased with age. The content of plasma cells was increased by the early period of infancy, indicating the activation of local humoral immunity. Regional peculiarities included higher content of plasma cells, granulocytes and lower concentration of destroyed cells in the superior ureteral segment as compared with the inferior one. These peculiarities were preserved during all childhood ages.
authors.forename: D E
authors.initials: DE
authors.lastname: Grigorenko
authors.forename: M P
authors.initials: MP
authors.lastname: Sapin
mesh_terms: D002675:Child, Preschool; D006098:Granulocytes / Q000166:cytology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008221:Lymphoid Tissue / Q000166:cytology*; D009092:Mucous Membrane / Q000166:cytology*; D010950:Plasma Cells / Q000166:cytology; D017154:Stromal Cells / Q000166:cytology; D014513:Ureter / Q000166:cytology*