Embryonic inactivation of Rbpj in the basal keratinocytes using K14-Cre or Msx2-Cre resulted in a thinner skin with stratification defects at birth [15], [42], which leads to neonatal death or epidermal hyperplasia after birth depending on the severity of barrier function defects [15], [43].
A simple grading system was devised to summarise the severity of barrier loss and cell shedding at confocal endomicroscopy in humans.
The severity of barrier loss and microerosions was discrepant between the images or between the two blinded investigators the grade was calculated on the most severe changes.
The instrument follows a strict protocol for assessing the level of regulation requirements and the frequency and severity of work barriers.
The BACS is a 12-item self-administered scale, through which HIV-positive individuals indicate the severity of various barriers to care and service provision (Heckman et al., 1998).
The following predictor items measured concepts of the health belief model: knowledge (mode of transmission, risk groups), susceptibility to illness, severity of illness, barriers to action (safety concerns, cost), benefits of action, and cues to action (behavior of relatives, sources of information).
Values are kept low when the barrier function is optimal, and they increase with the severity of the barrier defect.
The severity of the barrier is measured as minutes of extra work necessary to overcome the barrier.
For each task, barriers for RTW are summarized and are judged based on the frequency and severity of the barrier.
To quantify the severity of the barrier, the observer assessed the amount of extra work necessary to overcome each barrier.
