Children with juvenile dermatomyositis, juvenile idiopathic inflammatory myositis, and healthy adults have all demonstrated persistence of maternal microchimerism, which is increased in the diseased population and thought associated with human leukocyte antigen genes of the offspring and the mother.
On the other hand, Jakobsen et al. [24] demonstrated persistence of the cortical nephrogram by sequentially timed delayed CT scans and postulated that retention of CM occurred in the proximal tubular cells and was greater for the nonionic dimer, iodixanol, in comparison with nonionic monomers.
In our attempt to design a vaccine against VL, we used a different approach and selected four antigens that exhibited humoral reactivity with not only sera of infected VL patients but also demonstrated persistence recognition with cured sera.
In contrast to the situation with natural influenza virus infection, previous studies have demonstrated persistence of both vector genome and antigen expression for at least a year following i.m. rAd immunization of mice [65].
Several studies have documented an effect of caterpillar experience on adult oviposition behavior [19], [29], [30], but have attributed the effect to chemical legacy, or have not been able to rule out this possibility, and thus have not demonstrated persistence of a learned association across metamorphosis.
26 27 This demonstrated persistence of efficacy during the treatment period, with no evidence of bronchodilator tolerance.
On the other hand, we demonstrated persistence of protective antibody titers several months after immunization.
37, 104– 107 Some studies have demonstrated persistence of infectious markers within synovial fluid.
Pre-clinical studies to investigate mechanisms of resistance to oestrogen deprivation have demonstrated persistence of an active ER pathway [ 3].
A control CT scan showed a mild regression of the PC in the ventricular system, but demonstrated persistence of the subdural collection.
In fact, a number of publications have demonstrated persistence of liver fibrosis despite resolution or improvement in cholestasis following PN cessation [ 11- 13].
