Sökning: "stem cells"

Visar resultat 11 - 15 av 977 avhandlingar innehållade orden stem cells.

  1. 11. Dental mesenchymal stem cells

    Författare :Nina Kaukua; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Mesenchymal stem cells have been found in various tissues and act as source for renewal and repair. The mouse incisor tooth continuously grows throughout life, implicating that there are stem cell niches constantly contributing with cells. The composition of these stem cell niches is not fully understood. LÄS MER

  3. 12. Manipulating neural stem cells

    Författare :Malin Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The stem cell field is a fairly young but fast growing scientific field. Our understanding of stem cells has changed tremendously over the last couple of decades. This in mainly due to the development of new techniques that has enabled us to study stem cells from a completely new perspective. LÄS MER

  4. 13. Roles of PDGF for Neural Stem Cells

    Författare :Mia Enarsson; Karin Nilsson; Bengt Westermark; Peter Eriksson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; CNS; stem cells; neuron; PDGF; proliferation; differentiation; ERK; microarray; transgenic mouse; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi;

    Sammanfattning : Stem cells are endowed with unique qualities: they can both self-renew and give rise to new mature cell types. Central nervous system (CNS) stem cells can give rise to neurons and glia. LÄS MER

  5. 14. Genetic Sex Differences in Early Human Neuronal Development : An Investigation in Embryo Tissue and Embryonic Stem Cells

    Författare :Philipp Pottmeier; Elena Jazin; Armin Raznahan; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sex chromosome; gametolog; x y homolog; male; female; sex differences; sex bias; embryonic stem cells; neurodevelopment; neuronal differentiation; neural stem cells; genetics; neurodevelopmental disorders; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi; Neuroscience; Neurovetenskap; Medicinsk genetik; Medical Genetics;

    Sammanfattning : Sex differences in the human body affect many different organs and tissues, some of them have an effect on the human brain and its development. In the developing nervous system, sex differences can bias the number or functionality of neurons, glial cells or synapses. As a result, neural networks might develop with a sex-specific bias. LÄS MER

  7. 15. Stem cell function and organ development : analysis of Lhx2 function in hematopoietic stem cells and eye development

    Författare :Lina Dahl; Leif Carlsson; Jan-Ingvar Jönsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Lhx2; hematopoietic system; hematopoietic stem cell; progenitor; embryonic stem cell; embryoid body; eye development; forebrain; eye field transcription factor; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ; molekylär medicin genetik och patologi ; molecular medicine  genetics and pathology ;

    Sammanfattning : When a multicellular organism suffers damages to tissues/organs it heals itself by either substituting the lost cellular matrix by scar formation or by regenerating the lost tissue. Regeneration likely occurs by a recapitulation of the developmental process that formed the organ. LÄS MER