Essays about: "vitellogenin"

Showing result 1 - 5 of 6 essays containing the word vitellogenin.

  1. 1. Exogena östrogeners påverkan på fisk

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Angelica Johansson; [2019]
    Keywords : östrogen; fisk; vitellogenin; beteende; intersex;

    Abstract : Fiskars proteiner är snarlika människans vilket gör att de i många fall kan påverkas av samma ämnen som oss. Hormonpreparat, naturliga östrogener och östrogena nedbrytningsprodukter passerar genom reningsverken och hamnar slutligen i vattenmiljön där fiskar exponeras för ämnena. READ MORE

  3. 2. Effects of early life exposure to flutamide on sexual development in Xenopus tropicalis

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Miljötoxikologi

    Author : Christopher Hampton; [2019]
    Keywords : ;

    Abstract : While endocrine disrupting chemicals have become a serious concern in human and environmental toxicology, many of the methods used for investigating developmental toxicity require long exposure periods, and thus can be technically challenging, labour intensive and expensive. For example, the current standard method, the Larval Amphibian Growth and Development Assay (LAGDA) has an exposure period of ³130 days. READ MORE

  4. 3. Effects of Ethinylestradiol, EE2, exposure on Poecilia reticulta male specific genes, DMRT1 and CYP11b 

    University essay from Institutionen för livsvetenskaper

    Author : Natalia Isabel Moran Lopez; [2011]
    Keywords : ;

    Abstract : Endocrine disrupting chemicals (EDCs) found in every day product, can either be natural or man-made and usually exists in a concerning concentration in our aquatic environment which in turn could affect teleost reproduction. EDCs exposure in fishes may result in changes in their reproductive physiology and morphology resulting in for example induction in gonopodia in female fish when exposed to androgens and in males exposed to female estrogen a reduced sperm count and skewed sex ration. READ MORE

  5. 4. The toxicological evaluation of Sewage Effluents and Pharmaceuticals with the use of Zebrafish as a model organism

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Motunrayo Ganiyat Akande; [2008]
    Keywords : Zebrafish; Danio rerio; pharmaceuticals; reproduction test; fish sexual ; development test; fish embryo toxicity test; vitellogenin;

    Abstract : The presence of pharmaceuticals in the environment has been an issue of increasing concern and sewage treatment plants have been identified as the principal sources ofpharmaceuticals and endocrine disrupting chemicals in the aquatic environment.In this study, zebrafish juveniles and adults were exposed to sewage effluents that had undergone treatment processes (A1-A7) at Hammarby Sjostad’s sewage treatment plant in order to evaluate the effectiveness of the treatment processes. READ MORE

  6. 5. Zebrafish (Danio rerio) and Japanese Medaka (Oryzias latipes) as model species for evaluation of endocrine disrupting chemicals

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Suresh Yamani; [2004]
    Keywords : 17; 17; vitellogenin Vtg ; zebrafish Danio rerio ; medaka Oryzias latipes ;

    Abstract : Endocrine disrupting chemicals (EDCs) are anthropogenic compounds that have similar properties as endogenous hormones in vertebrates and they are capable of interfering with the endocrine system. EDCs have been detected in sewage receiving effluents from industries and livestock feedlots. READ MORE