Paula Syrjälä

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Metastrongylus spp. (Nematoda, Metastrongylidae) are lung worms of swine and occur worldwide. Species in the family include M. apri, M. pudendotectus, M. asymmetricus, and M. salmi. Earth worms are intermediate hosts and pigs get infected when eating earth worms. In Finland wild boar farming began in the 1980s and now there are over hundred farms and over(More)
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a widespread, persistent, and highly toxic environmental pollutant. The most TCDD-sensitive and the most TCDD-resistant rat strains (Long-Evans [Turku/AB] and Han/Wistar [Kuopio], respectively) were crossbred to separate the alleles of two genes (Ahrand an unidentified gene "B") mediating resistance against TCDD(More)
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is the most potent congener of polychlorinated dibenzo-p-dioxins. The potency of 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin (HxCDD) is only 10% of that of TCDD for typical aryl hydrocarbon receptor (AHR)-mediated effects. Acute lethality, macroscopic effects, and liver toxicity of TCDD and HxCDD were compared in male(More)
An outbreak of the sheep-associated form of malignant catarrhal fever (MCF) in a Finnish sow herd was diagnosed by histopathology and confirmed by PCR. Several gilts and sows were suffering from high fever and anorexia and had aborted, and six of them had died. Typical signs of lymphoproliferation and vasculitis were observed histologically in several(More)
Despite great interspecies differences in adult 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) sensitivity, the toxic potency of TCDD is similar across species in fetal mortality. Han/Wistar (Kuopio; H/W) rats are exceptionally resistant to acute toxicity of TCDD, but show sensitivity to embryotoxicity and teratogenicity. The resistance of adult H/W rats to(More)
Contagious mucocutaneous dermatitis is a frequently encountered disease of mountain hares (Lepidus timidus) in Finland. We describe the histopathologic changes and propose an etiologic cause for this disorder. Fifty-three cases collected during 1982-2000 were examined histologically. Transmission electron microscopy was performed in one case. In fully(More)
We investigated the epidemiology of the European brown hare syndrome (EBHS) in Finland among free-living mountain hares (Lepus timidus) and European brown hares (Lepus europaeus). Carcasses of 297 European brown hares and 843 mountain hares submitted for postmortem examination were analyzed between 1990 and 2002. One hundred thirty-six cases of EBHS were(More)
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