Sökning: "Caenorhabditis"

Visar resultat 1 - 5 av 48 avhandlingar innehållade ordet Caenorhabditis.

  1. 1. Regulation of energy balance in Caenorhabditis elegans 

    Författare :Ming Sheng; Simon Tuck; Lars Nilsson; Carina Holmberg-Still; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; C.elegans; fat metabolism; S6 Kinase; FT-IR; molekylär medicin genetik och patologi ; molecular medicine  genetics and pathology ;

    Sammanfattning : Obesity is a medical condition in which excess body fat has been accumulated. It is most commonly caused by imbalance between energy intake and energy expenditure (lack of physical activity and lower metabolic rate, etc.). LÄS MER

  3. 2. The control of growth and metabolism in Caenorhabditis elegans

    Författare :Josefin Friberg; Simon Tuck; Cathy Savage-Dunn; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TGFβ; insulin; collagen; p70 S6K; metabolism; growth; dauer; Caenorhabditis elegans; Cell and molecular biology; Cell- och molekylärbiologi;

    Sammanfattning : The control of growth is a poorly understood aspect of animal development. This thesis focuses on body size regulation in Caenorhabditis elegans, and in particular, how worms grow to a certain size. In C. elegans, a key regulator of size is the TGFβ homologue DBL-1. LÄS MER

  4. 3. Adaptation and plasticity within and across generations

    Författare :Zuzana Sekajova; Martin Lind; Lesley Lancaster; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phenotypic plasticity; nongenetic inheritance; environmental variation; Caenorhabditis elegans; Caenorhabditis remanei; life history; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Sammanfattning : The environment is seldom stable but often changes from one state to another and in order to survive and reproduce organisms need to respond to those changes. If the change is fast, genetic adaptations may not evolve quickly enough and organisms must adopt other strategies, such as phenotypic plasticity. LÄS MER

  5. 4. Oxygen sensing in Caenorhabditis elegans

    Författare :Lina Zhao; Changchun Chen; Simon Tuck; Helena Edlund; Marc Pilon; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; C. elegans; acute hypoxia; G-protein; mitochondrial ROS; neuropeptide; GPCR;

    Sammanfattning : Sufficient supply of oxygen (O2) to tissue is essential for survival of aerobicanimals. In mammals, there are constant homeostatic regulation mechanisms that act on different time scales to maintain optimal O2 delivery to tissues. The ability to detect and respond to acute oxygen shortages is indispensable to aerobic life. LÄS MER

  7. 5. Age-specific trade-offs in life-history evolution

    Författare :Martyna K. Zwoinska; Alexei Maklakov; Marjo Saastamoinen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; life history; trade-off; learning; aging; sex differences; dispersal; Caenorhabditis; Drosophila; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Sammanfattning : Trade-offs prevent selection from driving all fitness-enhancing traits towards values that would maximize fitness. Life-history trade-offs, such as the one between survival and reproduction are well-studied, yet trade-offs can also involve behavioural or cognitive traits. LÄS MER