Sökning: "embryology"

Visar resultat 6 - 10 av 19 avhandlingar innehållade ordet embryology.

  1. 6. The role of polysaccharide modifications during Drosophila development

    Författare :Florian Lüders; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ontogeni; growth animal ; embryologi; Development biology; Decapentaplegic; Hedgehog; Wingless; Sulfation; Pipe; Glycosaminoglycan; Glycosyltransferase; ontogeny; embryology; Utvecklingsbiologi;

    Sammanfattning : Glucosides attached to proteins and lipids have been shown to modulate the activity of signal transduction pathways regulating growth and patterning processes during animal development. In particular, O-linked glycans such as glycosaminoglycans (GAGs) have been implicated in modulation of growth factor signaling pathways. LÄS MER

  2. 7. Trilobites from the Middle and Upper Ordovician Andersön Shale Formation in Jämtland and the equivalent Killeröd Formation in Skåne, Sweden

    Författare :Kristina Månsson; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysisk geografi; Geologi; physical geography; Geology; Sweden; Jämtland; Skåne; Upper Ordovician; Middle Ordovician; Killeröd Formation; Andersön Shale Formation; ontogeny; biostratigraphy; Trilobita; taxonomy; trilobite associations; Systematic zoology; zoogeography; Zoologisk systematik; djurgeografi; Development biology; growth animal ; embryology; Utvecklingsbiologi; ontogeni; embryologi;

    Sammanfattning : Trilobites from the Middle and Upper Ordovician Andersön Shale Formation in Jämtland, central Sweden, and the Middle Ordovician Killeröd Formation in Skåne (Scania), southern Sweden, are revised and discussed. These formations have several genera and a few species in common, e.g. LÄS MER

  3. 8. Human Embryonic Stem Cells; A novel model system for early human development

    Författare :Karin Gertow; Lars Ährlund-Richter; Henrik Semb; Karolinska Institute; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human embryonic stem cells; Human embryonic stem cells; model system; differentiation; xeno-grafting; teratoma; development; karyotype; chromosomal integrity; variant.;

    Sammanfattning : Human embryonic stem cells (HESC) have since their first description in 1998 been recognized as a theoretically endless source of cells capable of differentiation into any somatic cell type. Although great attention has been given to their potential use in cell- based therapy, they are equally important as research tools for studies on early human development, both normal and diseased. LÄS MER

  4. 9. Studies on chondrocyte integrins and mechanical signaling

    Författare :Karin Holmvall; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; teratology; Development biology; collagen; mechnaical stimulation; cartilage; development; chondrocyte; integrin; ontogeny; embryology human ; Utvecklingsbiologi; teratologi; embryologi människa ;

    Sammanfattning : Integrins are a family of cell surface receptors known to bind matrix proteins and to mediate signals such as mechanical signals between the cell and the surrounding matrix. We have studied integrins that are expressed by chondrocytes, with specific focus on the integrins that interact with the cartilage matrix protein collagen type II. LÄS MER

  5. 10. Maternal smoking and congenital malformations

    Författare :Karin Källén; Tornbladinstitutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; teratologi; Utvecklingsbiologi; embryology human ; ontogeny; Epidemiology; smoking; malformation; pregnancy; registry; confounders; teratology; Development biology; embryologi människa ;

    Sammanfattning : About two percent of Swedish newborn infants are born with a significant congenital malformations which is reported to the Swedish Registry of Congenital Malformations (RCM), and/or the Swedish Medical Birth Registry (MBR). In spite of persistent public health recommendations, about 16% of the Swedish pregnant women are smoking during pregnancy (1996). LÄS MER