Elevated number of CD4⁺ T cells in various peripheral organs of BTBR mice, compared with those of B6 mice.

<p>Spleens, mesenteric lymph nodes, and peripheral blood were obtained from postnatal day 21 male or female mice (n = 3 for each sex per strain). Since there were no gender differences within a strain, the results were pooled by strain. Percentages (A) or absolute numbers (B) of CD4⁺ T cells among CD45⁺ cells were determined by flow cytometric analysis. Number of cells indicates the number per spleen, three pooled lymph nodes, or 1 ml of blood. *, BTBR <i>vs.</i> C57BL/6 (<i>p</i><0.05).