Sökning: "Inger Porsch Hällström"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Inger Porsch Hällström.

  1. 1. Cytochrome P-450 in Drosophila melanogaster : activity, genetic variation and regulation

    Författare :Inger Porsch-Hällström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The cytochrome P-450 enzyme system in the fruit fly, Drosophila melanogaster, was shown to be inducible, to consist of several isozymes and to have the capacity to metabolize a variety of substrates, thus resembling the corresponding mammalian system. These similarities strengthens the value of Drosophila test systems for the detection of indirect carcinogens and mutagens. LÄS MER

  3. 2. Hitting the mark : studies of alterations in behaviour and fertility in ethinyl estradiol-exposed zebrafish and search related biomarkers

    Författare :Nasim Reyhanian Caspillo; Inger Porsch Hällström; Per-Erik Olsson; Håkan Olsén; Leif Norrgren; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Endocrine disrupting compounds; 17α-ethinylestradiol; fertility; anxiety; behaviour; zebrafish; biomarkers; stress; Biology; Biologi;

    Sammanfattning : In this thesis, we have analysed the effects of EE2 on non-reproductive behaviours and fertility. We have showed that two doses of EE2 in male adult short-term exposures evokes opposite behaviours in the novel tank test. LÄS MER

  4. 3. Selective serotonin re-uptake inhibitors in the environment : Effects of citalopram on fish behaviour

    Författare :Martin Kellner; Håkan Olsén; Inger Porsch-Hällström; Magnus Breitholtz; Södertörns högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Citalopram; SSRI; stickleback; Baltic; behaviour; fish; feeding; anxiety; boldness; serotonin; development; Storspigg; serotonin; östersjön; SSRI; läkemedel; miljö; citalopram; ätbeteende; beteende; utveckling; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Sammanfattning : Selective serotonin re-uptake inhibitors (SSRIs) are a class of anxiolytic and anti-depressant drugs. SSRIs act on the evolutionarily ancient serotonergic system which is virtually identical throughout the vertebrate phylum. LÄS MER

  5. 4. Genetic Aspects of Environmental Disturbances in Marine Ecosystems : Studies of the Blue Mussel in the Baltic Sea

    Författare :Josefine Larsson; Mats Grahn; Inger Porsch-Hällström; Katarzyna Smolarz; Andrew Whitehead; Södertörns högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Blue mussel; Baltic Sea; anthropogenic disturbance; pollution; sewage effluents; harbors; genetics; genomics; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Sammanfattning : Anthropogenic environmental changes can serve as drivers for evolutionary responses in wild populations. To predict the long-term impact of anthropogenic changes on populations, it is crucial to understand the genetic effects caused by these disturbances. LÄS MER

  7. 5. Endocrine disruption in fish : Effects of 17α-ethinylestradiol exposure on non-reproductive behavior, fertility and brain and testis transcriptome

    Författare :Tove Porseryd; Inger Porsch Hällström; Ioanna Katsiadaki; Södertörns högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 17α-ethinylestradiol; endocrine disrupting chemical; fish; behavior; fertility; transcriptome; RNA sequencing; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Sammanfattning : Aquatic environments are the end recipient for most anthropogenic chemical pollutants. One common chemical pollutant found in the aquatic environment is 17α-ethinylestradiol (EE2), a synthetic estrogen used in contraceptive pills. LÄS MER