Figure 1

Short-term changes of the Ig-secreting cells in BM and PB after rituximab treatment. (a) Number of immunoglobulin (Ig)-secreting cells in bone marrow (BM) isolated from patients with rheumatoid arthritis at day 0, 1 and 3 months after rituximab treatment. Paired with respect to the sampling occasion. Error bars respresenting mean ± standard error of the mean. (b) Ig-secreting cells in peripheral blood (PB) at day 0, 3 and 6 months after rituximab treatment. Box represents 25^th to 75^th percentile, line indicates median, whereas error bars represent range. Statistical evaluation was performed using paired t-test.