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156 Messier, F., Taylor, M. K. and Ramsay, M. A. 1992. Seasonal activity patterns of female polar bears (Ursus maritimus) in the Canadian Arctic as revealed by satellite telemetry. Jour of Zool (London) 992(226), 219-229. Parkinson, A (1996): Biotransformation of xenobiotics. In: Klaassen, C. D. (editor): Casarett and Doull’s toxicology - the basic science of poisons. 5 th ed. McGraw-Hill Health Professions Division, New York, USA, pp. 113-186. Poland, A. and Knutson, J. C. 1982. 2,3,7,8-tetrachlorodibenzo-p-dioxin and related halogenated aromatic hydrocarbons: examination of the mechanism of toxicity. Ann Rev Pharmacol toxicol 22, 517-554. Prunescu, C. C., Serban-Parau, N., Brock, J. H., Vaughan, D. M. and Prunescu, P. 2003. Liver and kidney structure and iron content in romanian brown bears (Ursus arctos) before and after hibernation. Comp Biochem Phys A 134, 21-26. Ramsay, M. A. and Stirling, I. 1988. Reproductive biology and ecology of female polar bears (Ursus maritimus). Jour of Zool (London) 214, 601-634. Rawson, A. J., Patton, G. W., Hofmann, S., Pietra, G. G. and L. Johns. 1993. Liver abnormalities associated with chronic mercury accumulation in stranded atlanctic bottlenose dolphins. Ecotox Environ Safe 25 41-47. Rosing-Asvid, A., Born, E. W. and Kingsley, M. C. S. 2002. Age at sexual maturity of males and timing of the mating season of polar bears (Ursus maritimus) in Greenland. Polar Biol 25 878-883. Sandala G. M., Sonne, C., Dietz, R., Muir, D. C. G., Valters, K., Bennett, E. R., Letcher, R. J. 2004. Methyl sulfone and hydroxylated PCB metabolites in adipose and whole blood of polar bear (Ursus maritimus) from Scoresby Sound, Greenland. Sci Total Environ 331 125-141. Sato, M., Miura, M., Kojima, N., Higashi, N., Imai, K., Sato, T., Wold, H. L., Moskaug, J. Ø., Blomhoff, R., Wake, K., Roos, N., Berg, T., Norum, T. R. and Senoo, H. 2001. Nuclear deviation in hepatic parenchymal cells on sinusoidal surfaces in arctic animals. Cell struct and funct 26 71-77. Schumacher, U., Zahler, S., Horny, H. P., Heidemann, G., Skirnisson, K. and Welsch, U. 1993. Histological investigations on the thyroid glands of marine mammals (Phoca vitulina, Phocoena phocoena) and the possible implications of marine pollution. J Wildlife Dis 29(1), 103-108. Senoo, H., Imail, K., Wake, K., Wold, H., Moskaug, J., Kojima, N., Matano, Y., Miura, M., Sato, M., Roos, N., Berg, T., Langvatn, R., Norum, K. and Blomhoff, R. 1999. Vitamin A-storing system in mammals and birds in an Arctic area – a study in the Svalbard Archipelago. In: Wiss, E., Knook, D. L., de Zanger, R. and Fraaser, R (eds.): Cells of the hepatic sinusoid. Vol. 7, Kupffer Cell Foundation, CE Leiden, The Netherlands, pp. 34-35. Senoo, H., Imai, K., Higashi, N., Wake, K., Kojima, N., Miura, M., Wold, H., Moskaug, J., Sato, T., Sato, M., Roos, N., Berg, T., Norum, K. and Blomhoff, R. 2001. Transport and heptatic storage of vitamin A in arctic animals. In: Wiss, E., Knook, D. L., de Zanger, R. and Fraaser, R (eds.): Cells of the hepatic sinusoid. Vol. 8, Kupffer Cell Foundation, CE Leiden, The Netherlands, pp. 207-209. Sonne, C., Dietz, R., Riget, F. F., Born, E. W., Kirkegaard, M., Hyldstrup, L., Letcher, R. and Muir, D. C. G. Accepted with revision. Is bone mineral composition disrupted by organochlorines in East Greenland polar bears (Ursus maritimus)?. Environ Hlth Persp. Sonne C., Dietz, R., Leifsson, P. S., Riget, F. F., Born, E. W., Kirkegaard, M., Letcher, R. J., Muir, D. C. G. and Hyldstrup, L. Submitted. Renal lesions in East Greenland polar bears (Ursus maritimus) during 1999-2002. Ambio.
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National Environmental Research Ins
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National Environmental Research Ins
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Contents Summary 7 Resumé 11 Prefa
Page 7 and 8:
Paper III-b Periodontitis and tooth
Page 9 and 10:
Summary Marine mammals in the Arcti
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elations between histological chang
Page 13 and 14:
Resumé Betydelige mængder svært
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signifikante relationer blev fundet
Page 17 and 18:
Preface Since ca. 1960 signficant a
Page 19 and 20:
Acquarone, Poul Johansen and Inge B
Page 21 and 22:
Abbreviations ∑ Sum of congeners
Page 23 and 24:
Introduction Study area and samplin
Page 25 and 26:
content and composition) varying wi
Page 27 and 28:
Of the PCBs found in the East Green
Page 29 and 30:
son Bay bears while the difference
Page 31 and 32:
Individual levels and biological ef
Page 33 and 34:
No. skulls collected 50 45 40 35 30
Page 35 and 36:
temperature extremes and/or food av
Page 37 and 38:
Chapter 3 Bone mineral density and
Page 39 and 40:
BMD analysed by DXA reflects the ar
Page 41 and 42:
Table 4 Range in the levels (ng/g l
Page 43 and 44:
Chapter 4 Liver histology of East G
Page 45 and 46:
Table 7 Levels of ∑-PCBs, ∑-DDT
Page 47 and 48:
Frequency (%) 100 80 60 40 20 Sever
Page 49 and 50:
Effects of PBBs (PolyBrominated Bip
Page 51 and 52:
Etiology and pathogenesis E Figure
Page 53 and 54:
common sign (Acland 1995, Feldman 1
Page 55 and 56:
Conclusions and final assessments O
Page 57 and 58:
of CYP-450 activity that impact cir
Page 59 and 60:
Regarding renal tissue, we will try
Page 61 and 62:
Bernhoft, A., Ø. Wiig and J. U. Sk
Page 63 and 64:
Feldman, E. C. (1995): Hyperadrenoc
Page 65 and 66:
(eds.): Ringed seals in the North A
Page 67 and 68:
McCormack, K. M., W. M. Kluwe, V. L
Page 69 and 70:
Rosing-Asvid, A., E. W. Born and M.
Page 71 and 72:
Valentino, R., S. Savastano, A. P.
Page 73 and 74:
Paper I Seasonal and temporal trend
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eproductive rates of seals in the B
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concentrations of the 41 individual
Page 79 and 80:
Figure 1 Capture locations of the p
Page 81 and 82:
Table 4 Results of ANOVAs (F-value
Page 83 and 84:
Long-Term Temporal Changes in OC Co
Page 85 and 86:
Discussion Geographical Variation i
Page 87 and 88:
sen et al. (2001) studied the trend
Page 89 and 90:
higher than reported in other studi
Page 91 and 92:
Bergman A, Olsson M. Pathology of b
Page 93 and 94:
Muir D, Norstrom RJ. Geographical d
Page 95 and 96:
Wiig Ø, Gjertz I, Hansson R, Thoma
Page 97 and 98:
Key words: polar bear, Ursus mariti
Page 99 and 100:
2. Materials and methods 2.1 Sampli
Page 101 and 102:
2.3 Age Determination The age deter
Page 103 and 104:
No. skulls collected 50 45 40 35 30
Page 105 and 106:
Table 4 Results (test and p-values)
Page 107 and 108: Table 6 Results from F-tests (p-val
Page 109 and 110: (oxy-chlordane, trans-chlordane, ci
Page 111 and 112: Also Pertoldi et al. (1997) investi
Page 113 and 114: study could not document a relation
Page 115 and 116: Lie E, Bernhoft A, Riget FF, Beliko
Page 117 and 118: function in harbour seals (Phoca vi
Page 119 and 120: (p=0.94). Negative correlation betw
Page 121 and 122: Osteodensitometry X-ray osteodensit
Page 123 and 124: Figure 2 BMD (g cm 2 ) in skulls fr
Page 125 and 126: Table 3 Significant results from th
Page 127 and 128: 2003) and plasma retinol and thyroi
Page 129 and 130: Comiso JC. 2002. A rapidly declinin
Page 131 and 132: Manalagas SC, Jilka RJ. 1995. Bone
Page 133 and 134: Valentine DW, Soulé M. 1973. Effec
Page 135 and 136: have the potential for adverse heal
Page 137 and 138: Dioxin-like contaminants Extraction
Page 139 and 140: Concentration 9000 8000 7000 6000 5
Page 141 and 142: Acknowledgements Danish Cooperation
Page 143 and 144: Polischuk, S. C., R. J. Letcher, R.
Page 145 and 146: Paper IV Liver histology of free-ra
Page 147 and 148: Histology All tissue samples were t
Page 149 and 150: Figure 1 Hepatic lipid accumulation
Page 151 and 152: Figure 2 Left: Portal mononuclear c
Page 153 and 154: Relationship between histology and
Page 155 and 156: kinson 1996). Due to these mechanis
Page 157: sues. Arctic Monitoring and Assessm
Page 161 and 162: Introduction Polar bears (Ursus mar
Page 163 and 164: Briefly, ∑PCBs is the sum (s) of
Page 165 and 166: Figure 1 Bottom: example of glomeru
Page 167 and 168: Figure 3 Tubular cell proliferation
Page 169 and 170: Hyalin casts Hyalin casts were eval
Page 171 and 172: Figure 6 Hyperemia (arrows) in the
Page 173 and 174: al., 2003). We did not find such a
Page 175 and 176: ANDERSEN, M., E. LIE, A. E. DEROCHE
Page 177 and 178: LUROSS, J. M., M. ALAEE, D. B. SERG
Page 179 and 180: organic mercury in liver and kidney
Page 181 and 182: Introduction Polar bears (Ursus mar
Page 183 and 184: Macroscopic examination of reproduc
Page 185 and 186: Results and discussion The female p
Page 187 and 188: SC II PC/LC Figure 2 The histology
Page 189 and 190: The relatively low levels of analys
Page 191 and 192: (Table 4), and we therefore conclud
Page 193 and 194: Acknowledgements Danish Cooperation
Page 195 and 196: Letcher RJ, Klasson-Wehler E, Bergm
Page 197 and 198: Swart RL, Ross PS, Vedder LJ, Timme
Page 199 and 200: 10. Heier, A., C. Sonne, A. Gröne,
Page 201 and 202: crine organs and skulls in the East
Page 203: To investigate the relation between
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