Sökning: "endocrine disruptors"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden endocrine disruptors.

  1. 1. Reproductive toxicology of endocrine disruptors effects of cadmium, phthalates and phytoestrogens on testicular steroidogenesis

    Detta är en avhandling från Umeå : Molekylärbiologi (Teknisk-naturvetenskaplig fakultet)

    Författare :David Gunnarsson; Umeå universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Endocrine disruptors; reproductive toxicology; cadmium; phthalates; DEHP; MEHP; phytoestrogens; steroidogenesis; testosterone; Leydig cell; NATURAL SCIENCES Biology Cell and molecular biology Molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Molekylärbiologi;

    Sammanfattning : A number of investigations during the last two decades describe adverse trends in male reproductive health, which have been proposed to be caused by environmental factors with endocrine disrupting properties. In contrast to many other toxicants, endocrine disruptors often do not show linear dose-response relationships typical of those found in traditional toxicological studies. LÄS MER

  2. 2. Effects of some Endocrine Disruptors on Human and Grey Seal Uterine Cells

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Carolina Bredhult; Uppsala universitet.; [2007]
    Nyckelord :Obstetrics and gynaecology; Reproductive toxicology; Baltic grey seal; leiomyoma; myometrial cells; endometrial endothelial cells; hormones; endocrine disruptors; Obstetrik och kvinnosjukdomar;

    Sammanfattning : The effects of environmental contaminants in humans and animals are of great concern. Some contaminants are endocrine disruptors that may interfere with the endogenous hormonal signalling and disturb, for example, reproductive organs and functions. LÄS MER

  3. 3. Endocrine Disruption in Amphibians Developmental Effects of Ethynylestradiol and Clotrimazole on the Reproductive System

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Irina Gyllenhammar; Uppsala universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Test system; Xenopus tropicalis; Rana temporaria; sex ratio; sex differentiation; fertility; aromatase; ovary; testis; oviduct; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Sammanfattning : Amphibian populations are declining world-wide and one of the suggested reasons is environmental pollutants. Studies of long-term effects on the reproductive system in frogs following larval exposure to environmental pollutants are scarce. It is therefore important to develop methods to study developmental reproductive toxicity in amphibians. LÄS MER

  4. 4. Fishy behavior persistent effects of early-life exposure to 17α-ethinylestradiol

    Detta är en avhandling från Örebro : Örebro university

    Författare :Kristina Volkova; Örebro universitet.; Södertörns högskola.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Endocrine disruptors; anxiety; stress behavior; transgenerational effects; 17α-ethinylestradiol; developmental exposure; social behavior; fish;

    Sammanfattning : The synthetic estrogen 17α-ethinylestradiol (EE2) is an endocrine disrupting chemical (EDC) of concern due to its persistent nature and widespread presence in the aquatic environment. In mammals, effects of developmental EDC exposure on reproduction and behavior not only persist to adulthood after discontinued exposure, but are also inherited by several consecutive unexposed generations. LÄS MER

  5. 5. Effects of endocrine disruptors on adreno-cortical and Leydig cell steroidogenesis

    Detta är en avhandling från Stockholm : Karolinska Institutet, Department of Women's and Children's Health

    Författare :Vichit Supornsilchai; Karolinska Institutet.; Karolinska Institutet.; [2007]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Endocrine disrupting chemicals EDCs ; steroidogenesis; Leydig cells; adrenocortical cells; steroidogenic acute regulatory protein StAR ; steroidogenic enzymes;

    Sammanfattning : A common sequential pathway for steroidogenesis, designed to produce steroid hormones, is expressed in the adrenal cortex, testes and ovaries. In this process, cholesterol is converted to all known steroids by specific enzymes in a tissue-specific manner. LÄS MER