Furthermore, the persistence of exposure to tobacco among ex-drinkers may play an important role in limiting the benefits of drinking cessation.
The persistence of exposure to each occupational activity (heavy lifting or stair climbing) was assessed by devising the following score for each activity: 0 - no exposure at either time point, 1 - exposure at either, but not both time points and 2 - exposure at both time points.
Oral administration of 2.27 g OVA the day after birth (Group A) or 0.23 g OVA daily for 3 days after birth (Group B) did not promote significant induction of serum anti-OVA IgG titres which suggest that whether lambs respond to oral antigen with immunity or not is dependent upon dose or persistence of exposure.
The prevalence of asthma appears to be increasing in urban and rural populations in developing countries [ 6, 7], and increasing urbanization and the acquisition of modern lifestyle, coupled perhaps with environmental triggers for non-atopic symptoms and or the persistence of exposures that attenuate atopy [ 8, 9], has been the most cited factors to explain these epidemiological trends [ 10, 11].
Sputum eosinophilia at diagnosis, together with the persistence of occupational exposure during follow-up, may contribute to a greater decline in FEV1 in patients with OA still at work.
A toxicity screen should not reject a compound (i.e., classify as inactive or safe) that has a weak affinity for a target or multiple targets without considering its ADMET properties, persistence, and chance of exposure.
Finally, the distinction between persistence and reduction of exposure is not based on specific environmental measurements, but the majority of previous studies used the same rough distinction we did between patients who continued and patients who reduced occupational exposure to the specific sensitiser (reviewed in ref. 24).
The distinction between persistence and reduction of exposure is not based on specific environmental measurements, but the majority of previous studies used the same rough distinction we did between patients who continued and patients who reduced occupational exposure to a specific sensitiser.
However, both modes of ethanol exposure still significantly differed from their respective controls demonstrating a clear-cut persistence of the adolescent exposure effect into adulthood.
The capacity of parasites to enter quiescence after exposure to artemisinin and readily resume growth after drug removal is central to resistance to artemisinin (9, 11, 12 ) and is similar to persistence of bacteria after exposure to antimicrobial drugs (17 ).
This finding suggests that the frequency of exposure, persistence, context of presentation or provenance of the allergen protein are important in determining how frequently a particular species is encountered as a cause of allergy.
