Sökning: "gel layer"

Visar resultat 11 - 15 av 64 avhandlingar innehållade orden gel layer.

  1. 11. Helicobacter pylori and Gastric Protection Mechanisms : An in vivo Study in Mice and Rats

    Författare :Johanna Henriksnäs; Lena Holm; Lars Engstrand; Erik Persson; Lars Fändriks; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; mucus gel layer; mucosal blood flow; mucus thickness; intra-vital microscopy; laser-Doppler flowmetry; pH-sensitive microelectrode; nitric oxide; Helicobacter pylori; bicarbonate secretion; mouse model; Fysiologi; Physiology; Fysiologi;

    Sammanfattning : The stomach is frequently exposed to hazardous agents and to resist this harsh environment, several protective mechanisms exist. Of special interest is the gastric pathogen Helicobacter pylori which causes gastritis, ulcers and cancer but the mechanism leading to these diseases are still unclear. However it is very likely that H. LÄS MER

  3. 12. Nitrate, Nitrite and Nitric Oxide in Gastric Mucosal Defense

    Författare :Joel Petersson; Lena Holm; Jon Lundberg; Mia Phillipson; Matthew Grisham; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dietary nitrate; mucus gel layer; mucosal blood flow; mucus thickness; laser-Doppler flowmetry; mucosal damage; intra-vital microscopy; mucosal permeability; Physiology; Fysiologi;

    Sammanfattning : The human stomach normally contains high levels of bioactive nitric oxide (NO). This NO derives from salivary nitrate (NO3-) that is converted to nitrite (NO2-) by oral bacteria and thereafter non-enzymatically reduced in the acidic gastric lumen to NO. LÄS MER

  4. 13. Assembly and proteolytic cleavages of gel-forming mucins

    Författare :Martin Lidell; Göteborgs universitet; []
    Nyckelord :mucins; MUC2; MUC5AC; dimer; trimer; cleavage; Entamoeba histolytica; cysteine protease;

    Sammanfattning : Gel-forming mucins are large glycoproteins constituting the main structural component of themucus layer protecting epithelial surfaces of the body. This thesis aims to a deeper understandingof how gel-forming mucins are synthesized and assembled, and how they may interact with othermolecules. LÄS MER

  5. 14. Modification of silica gel with organosilanes for high performance thin layer chromatography and high performance liquid chromatography

    Författare :Monica Ericsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 15. Study of the colonic mucus layer by mass spectrometry

    Författare :Sjoerd van der Post; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MUC2; mucin; intestine; proteomics; mass spectrometry;

    Sammanfattning : The mucus covering our internal mucosal surfaces is a part of the innate immune system, and the first line of defense against microbial challenges. The need of an efficient defense system is especially important in the lower parts of the digestive tract where the microbiota reaches its highest density. LÄS MER