Search for dissertations about: "Per-erik Olsson"
Showing result 1 - 5 of 16 swedish dissertations containing the words Per-erik Olsson.
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1. Interaction of brominated flame retardants with the chicken and zebrafish androgen receptors
Abstract : The survival of organisms depends on their ability to use different signaling pathways to adapt to the environment. The endocrine system consists of glands that release hormones to the blood stream. Male reproductive functions are regulated by androgens through interactions with the androgen receptor (AR). READ MORE
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2. Modulation of androgen receptor function by brominated flame retardants
Abstract : .... READ MORE
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3. Teleost reproduction: Aspects of Arctic char (Salvelinus alpinus) oocyte growth and maturation
Abstract : In all vertebrate species, reproduction is a hormonally controlled process, important for growth and maturation of gonads and germ cells. Production of functional germ cells is of outmost importance to secure the survival of a species. Fish comprises 50% of the known vertebrates and are found in aquatic habitats all over the world. READ MORE
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4. The Origin of Tetrapod Limbs and Girdles: Fossil and Developmental Evidence
Abstract : Around 375 million years ago, the first tetrapods appeared, marking one of the most important events in vertebrate evolutionary history. The fin to limb transition saw the appearance of fingers and a weight bearing pelvic girdle. READ MORE
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5. Hitting the mark : studies of alterations in behaviour and fertility in ethinyl estradiol-exposed zebrafish and search related biomarkers
Abstract : 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. READ MORE