glutathione peroxidase ros Figure 2 — Are epidermal stem cells unique with respect to aging? instant brightening cream
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Determination of the molecular mass and oligomerization state of purified recombinant proteins The molecular masses of purified recombinant proteins were analyzed using a Bruker microTOF-Q spectrometer (Bruker Daltonics, Bremen, Germany) equipped with an Apollo II electrospray ionization source as described previously (Couturier et al., Enzymatic activities The GSH-conjugation activity toward phenetyl isothiocyanate (PITC), benzyl isothiocyanate (BITC), 1-chloro-2,4-dinitrobenzene (CDNB), 4-hydroxy-2-nonenal (HNE), 4-nitrophenyl butyrate (PNP-butyrate) was assayed at 25°C by following absorbance at 274 nm for isothiocyanate derivatives, or at 224, 340, 412 nm for HNE, CDNB, and PNP-butyrate respectively
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Drug solution preparation Except for dihexa all drug solutions were prepared in HPLC grade water at 5 mg/ml