For example, the half-life of acetaminophen, one of the most common antipyretics, is much slower in neonates than in adults [ 2].
For example, the half-life of 256No is almost three seconds, but that of 258No is only 1.2 milliseconds.
For example, the half-lives of subtilisin and a Bacillus subtilis lipase were increased 1500-fold and 300-fold, respectively, using a crystal structure to guide mutagenesis choices.
For example, the half-life of radium-226 is 1600 years (meaning it takes that long for 50% of the total to decay).
For example, the half-lives of lyso-DGTS 16:0) lyso-DGTS 163/16:0), t1/2 = 43.6 ± 4.5 h and 47.6 ± 2.2 h, respectively, proviDGTS 18 3/16int1/2ipid synthesis and degradation in this organism.
For example, the half-life of histamine in serum is quite short owing in part to the action of histamine-catabolizing enzymes.
For example, the half-life of different proteins varies from minutes to days, but the variability for mRNAs is quite a bit less.
However, individual gender factors should be considered; for example, the half-life of zolpidem in females was statistically significant longer than in males.
For example, the half-life of DDE in soil may be more than 20 years (Agency for Toxic Substances and Disease Registry 2002).
For example, the half-life of a "typical" TFBS is between 10 and 100 Mio years, whereas more constrained binding sites, such as RAREs in mammalian HoxA clusters, have an estimated half-life time of about 150 Mio years.
These times can be related to experimental values, for example, the half-life of a complex can be calculated from its dissociation rate koff, τ1/2= ln(2)/ koff[ 19].
