| pubmed-article:8050724 | pubmed:abstractText | Natural killer (NK) cell activity was determined in 41 women during the first trimester of pregnancy. NK cytotoxicity was similar between the study subjects and nonpregnant controls and was not a reflection of a change in the circulating number of cells or density in culture. Although NK cells may play a role in maternal immune status in advanced pregnancy, NK cells do not appear to be crucially involved in the first trimester, when reproductive wastage usually occurs. | lld:pubmed |
