BACKGROUND Tattoo reactions, especially in red tattoos, are often suggested as allergic in nature, however, systematic evaluation by patch testing has not performed in the past. OBJECTIVE To report the results of patch testing in 90 patients with non-infectious chronic tattoo reactions. MATERIALS/METHODS From 2009 to 2013 at the 'Tattoo Clinic', Department of Dermatology, Bispebjerg Univers...

Second harmonic generation (SHG) is used to monitor rotational, reorientation dynamics of disperse red 1 (DR1) doped at 2 wt % in poly(isobuty1 methacrylate) (PIBMA) and poly(ethy1 methacrylate) (PEMA). A delay-trigger approach is employed in conjunction with conventional measurements to monitor dynamics from lo-‘ s to as long as necessary, permitting characterization of rotational reorientatio...

Oligopeptidase B (OpdB, E.C. 3.4.21.83) is a proteolytic enzyme that belongs to the prolyl oligopeptidase family (POP) of serine proteases [10, 24]. Initially discovered in E. coli, this enzyme was found in several gram-negative bacteria, spirochetes, [6, 24], and protozoa [5, 14], but not in higher eukaryotes, with the exception of some plants [6]. Although the physiological role of OpdB has n...