The Alpha-Tocopherol Form of Vitamin E Boosts Elastase Activity of Human PMNs and Their Ability to Kill <i>Streptococcus pneumoniae</i>.

Second, ELISAs of cell pellets revealed no significant age-associated difference in cathepsin G amounts (Figure 4A ); activity measurements showed that PMNs isolated from elderly donors had on average 3-fold higher cathepsin G activity compared to young PMNs, but this difference did not reach statistical significance ( p = 0.16; Figure 4B ).

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