CD40LG and lobular neoplasia: In the prospective LN cohort, creatinine levels at baseline were higher in LN patients with versus without IgG aCL (p = 0.03) and anti-β2-GPI (p = 0.02), but were similar in LN patients with and without IgM aCL (p = NS) or anti-β2-GPI (p = NS).