Johannes Wolkers

Biotransformation of PCBs in Arctic seabirds: Characterization of phase I and II pathways at transcriptional, translational and activity levels

Bioaccumulation of radiocaesium in Arctic seals

Transfer of polychlorinated biphenyls and chlorinated pesticides from mother to pup in relation to cytochrome P450 enzyme activities in harp seals (Phoca groenlandica) from the Gulf of St. Lawrence, Canada

Chlorinated pesticide concentrations, with an emphasis on polychlorinated camphenes (toxaphenes), in relation to cytochrome P450 enzyme activities in harp seals (Phoca groenlandica) from the Barents Sea

Organochlorines and Possible Biochemical Effects in Glaucous Gulls ( Larus hyperboreus ) from Bjørnøya, the Barents Sea

Organochlorines and possible biochemical effects in glaucous gulls (Larus hyperboreus) from Bjornoya, the Barents sea

Cytochrome P450-mediated enzyme activities and polychlorinated biphenyl accumulation in harp seal (Phoca groenlandica)

Persistent organochlorines, cytochrome P450 enzyme activities and highly carboxylated porphyrins in glaucous gulls (Larus hyperboreus)

Effect of temperature on the P4501A response in winter- and summer-acclimated Arctic char (<i>Salvelinus alpinus</i>) after oral benzo[<i>a</i>]pyrene e×posure

Phase I and phase II enzyme activities in Ringed seals (Phoca hispida): characterization of hepatic cytochrome P450 by activity patterns, inhibition studies, mRNA analyses, and western blotting

Dose and time dependency of cytochrome P4501A induction in liver and kidney of B(a)P exposed Arctic charr (Salvelinus alpinus)

Congener specific PCB and polychlorinated camphene (toxaphene) levels in Svalbard ringed seals (Phoca hispida) in relation to sex, age, condition and cytochrome P450 enzyme activity

Time-dependent induction of two distinct hepatic cytochrome P4501A catalytic activities at low temperatures in Arctic charr (Salvelinus alpinus) after oral exposure to benzo(a)pyrene