While the present experimental setup did not allow for a mechanistic explanation as to why control of quiet bipedal stance did not improve during rehabilitation periods, asymmetric load distribution is known to increase COP displacement during quiet stance and has been shown persist in TKA patients for at least six months following surgery [ 6, 23].
Total gas that evolved after 24 h at 1 atm in the stability window typically amounted to less than 0.5% of originally stored gas, and this ultra-stability was shown to persist when the test was allowed to run 256 h before terminating.
Thus, localized, cell-mediated degradation and MSC migration from the hydrogels are suspected, particularly as ∼10% of the total transplanted MSC population was shown to persist in close proximity (within ∼650 μm) to grafts 7 weeks after complete hydrogel degradation.
The enhanced immune profile observed with the AS04 formulation in terms of both total, V5/J4 specific and neutralizing antibodies was shown to persist for at least 3.5-year post-vaccination in human subjects.
The nadir of mHLA-DR was typically observed on postoperative days 1 3, but diminished mHLA-DR expression was shown to persist up to postoperative day 10 in a considerable number of patients [70, 71].
However, a relative increase of inequality was shown which persisted also after adjusting for age and marital status.
Studies by Iwai et al 15 suggest that Pro-Hyp can be considered an indigestible peptide as more than 75% of Pro-Hyp was shown to persist in the blood for 24 hours after in vitro reaction with human serum.
In addition, a decline in the incidence of MRSA infections in hospital over a 7-year surveillance period was shown to persist, despite an interruption to routine HCW screening after the first 4 years [ 29].
However, inequality was shown to persist in skilled birth attendance and delivery in medical facilities, indicating minimal professional delivery care among disadvantaged women despite health system-wide efforts and improvements in the sociodemographic profile of the population.
Of note, differential methylation of the AHRR was also found in cord blood from children after prenatal smoke exposure [ 45] (see below) and was shown to persist until early infancy [ 46], demonstrating that there is at least in some instances a prolonged epigenetic memory of environmental insults.
