Sökning: "cellular aging"

Visar resultat 11 - 15 av 67 avhandlingar innehållade orden cellular aging.

  1. 11. Telomeres and the brain : an investigation into the relationships of leukocyte telomere length with functional and structural attributes of the brain

    Författare :Mikael Wikgren; Karl-Fredrik Norrback; Rolf Adolfsson; Göran Roos; Thomas Karlsson; Brenda Penninx; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; APOE; aging; atrophy; brain; cognition; cortisol; depression; hippocampus; HPA axis; MRI; stress; telomere length; white matter hyper-intensities.;

    Sammanfattning : Telomeres are the outermost parts of linear chromosomes. They consist of tandemly repeated non-coding short nucleotide sequences (TTAGGG in all vertebrates), in humans spanning over the last 2 to 15 kilobase pairs of the chromosome. Due to the end-replication problem, telomeres shorten with each cellular division. LÄS MER

  3. 12. Caulobacter crescentus folding machines at the interface of inheritance, cell division, and energy metabolism

    Författare :Kristen Schroeder; Kristina Jonas; Pierre Genevaux; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; chaperones; DnaK; chaperonin; GroESL; protein quality control; protein folding; stress response; cellular aging; cell division; bacterial respiration; Caulobacter crescentus; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : All living cells must perform essential biological processes while monitoring and responding to environmental cues. Bacteria are accessible experimental systems in which to study the function of conserved central processes. LÄS MER

  4. 13. The Role of Hepatic Leukemia Factor in Hematopoiesis

    Författare :Karolina Komorowska; Avdelningen för molekylärmedicin och genterapi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hematopoiesis; Hematopoietic Stem Cells; knockout mice; HLF; Transcription Factor; aging;

    Sammanfattning : The development of therapeutic methods based on stem cells (e.g. cell therapy, activating regeneration and organ transplantation), known as regenerative medicine, is still a novel area in the field of life sciences. LÄS MER

  5. 14. Early Blood Cell Formation "in sickness and health, ´till death do us part"

    Författare :Kees-Jan Pronk; Immunologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hematopoietic stem cell; differentiation; regulation; myeloerythropoeisis; myelopoesis; p16INK4A; aging; tumor necrosis factor;

    Sammanfattning : Hematopoietic stem cells (HSC), the ancestors of all blood cells, have the ability to give rise to mature effector cells through a series of developmental steps. This is a tightly regulated, though a highly dynamic process: on the one hand, dysregulation in steady-state could lead to under- or overgrowth of certain blood cell lineages, whereas, on the other hand, demands for certain mature blood cells can change dramatically in cases like bleeding and infections. LÄS MER

  7. 15. Free radicals in cellular pathology : Mechanisms behind lipofucin formation in cultured myocardial cells

    Författare :Rasi Marzabadi Massoud; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Lipofuscin, or age pigment, may be defined as a yellowish-brown,autofluorescent, protein and lipid containing pigment that accumulates inthe lysosomal vacuome of a variety of post-mitotic cell types in man andanimals during aging. Lipofuscin is the end product of peroxidation,fragmentation and polymerization of proteins and lipids. LÄS MER