Colonic Mucosal Infiltration of IgG4 Plasma Cells and Ulcerative Colitis: Determinant of Presence, Activity, Extension, and Duration of Disease.

BACKGROUND Infiltration of IgG4 positive plasma cells has been detected in the colonic mucosa of patients with ulcerative colitis (UC). The aim of the study was to investigate the association between colonic mucosal infiltration of IgG4 plasma cells and the presence, activity, extension, and duration of UC. METHODS In this case-control study (2009-2014), 102 subjects (84 with UC/18 controls) were enrolled.

Steroid induced ocular hypertension following myopic photorefractive keratectomy.

Purpose: To determine the incidence of steroid induced ocular hypertension following myopic photorefractive keratectomy (PRK).

Methods: Myopic PRK was performed on 506 eyes of 269 patients. Preoperatively, spherical equivalent refractive error ranged from -1.