Because of their high specificity, these same methods are susceptible to decreased sensitivity or even false negative results when confronted with even minor changes in target sequences.
Whether age renders RBCs more susceptible to decreased deformability [ 41], or a particular subset of RBCs associated with decreased deformability [ 22] leads to impaired RBC O2-dependent ATP efflux is unknown.
Condon and coworkers [ 70] reported that 'elderly' RBCs, comprising 20% of the circulating erythrocytes, were most susceptible to decreased deformability and that Hb content decreased in a large fraction of the RBCs during sepsis.
Selection programmes have thus been launched in several European countries, that aim at eliminating the most susceptible alleles to decrease circulation of scrapie agent as well as the potential circulation of BSE agent in sheep [ 15].
During the 5-year period, the proportion of susceptible isolates appeared to decrease, the proportion of resistant isolates increased, and the proportion of intermediate isolates showed little change.
From 1996 to 2000, the proportion of S. pneumoniae isolates susceptible to cefotaxime decreased 8%.
So AgRP neurons in female mice may be more susceptible to the decreased SIRT1 function.
aValues in parentheses are number of hospitals contributing data and total number of isolates reported, respectively bTmp-smx, trimethoprim-sulfamethoxazole From 1996 to 2000, the proportion of S. pneumoniae isolates testing susceptible to penicillin decreased (p<0.001).
Similarly, a Polish pediatric hospital in which carbapenem use quadrupled between 1993 and 2002 found that the percentage of isolates susceptible to imipenem decreased from 95.7% to 81.7%, and that MIC90 increased from 2 mg/dL to 16 mg/dL over the same period [ 80].
Increasing the number of possible infections and thus the pool of susceptibles also acts to decrease the average age of clinical disease through heterologous re-infections; however, this drop could be partially compensated for by the possibility of developing DHF/DSS also at third and fourth infection.
