Sökning: "Human microflora"

Visar resultat 1 - 5 av 39 avhandlingar innehållade orden Human microflora.

1. 1. Human intraepithelial lymphocytes : a comparative study of phenotype, morphology, and functional properties of intraepithelial lymphocytes in gut and oral mucosa

   Författare :Carina Lundqvist; Marie-Louise Hammarström; Sten Hammarström; Per Brandtzaeg; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human intraepithelial lymphocytes; alimentary tract; intestinal epithelium; gut luminal antigens; gingiva; γδ T cells; immunoelectron microscopy; cytokine mRNA; RT-PCR; extrathymic T cell maturation; RAG-1; periodontitis; mucosal immune system; CD4-CD8- αβ T cells; CD8 γδ T cells;

   Sammanfattning : Human intraepithelial lymphocytes (IEL) constitute a unique cell population situated in the first line of defense of the alimentary tract. Here they are continuously exposed to a massive antigenic load of high complexity. However, different conditions prevail along the alimentary tract. LÄS MER

3. 2. Human intestinal T lymphocytes : a comparative analysis of phenotype and function in normal and inflamed mucosa

   Författare :Silvia Melgar; Nadine Cerf-Bensussan; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human intestinal mucosa; intraepithelial lymphocyte; lamina propria lymphocyte; γδ T cell; regulatory T cell; cytotoxicity; cytokine; basal lymphoid aggregate; ulcerative colitis; Crohn s disease;

   Sammanfattning : The epithelial lining of the gut must allow immediate contact with beneficial components as nutrients and normal microflora. At the same time it runs the constant risk of attack from pathogenic microbes and noxious agents. LÄS MER

4. 3. Regulation of human immune responses to allergens

   Författare :Anna-Carin Lundell; Göteborgs universitet; []
   Nyckelord :recognition receptors; antigen-presenting cells; sCD14; sCD83; T cells; neonates; gut microflora; staphylococcus aureus; allergens; allergy; children;

   Sammanfattning : The incidence of allergic diseases is increasing in the industrialized countries. Epidemiological studies indicate that there is an association between exposure to high levels of endotoxin or cat allergen during infancy and reduced risk of developing allergic diseases later in childhood. LÄS MER

5. 4. Ecological impact of antibiotic treatment on human normal microflora

   Författare :Mamun-Ur Rashid; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Ceftobiprole;

   Sammanfattning : The skin and the mucosal surfaces of humans are colonized with microorganisms which are often referred as the normal microflora. There is a biological balance between the human host and the normal microflora in health. The extensive use of antibiotics in both humans and animals has caused the development of many resistant bacteria. LÄS MER

7. 5. Biological and Pharmacological Factor that Influence the Selection of Antibiotic Resistance

   Författare :Ingegerd Gustafsson; Otto Cars; Niels Frimodt-Möller; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microbiology; Human microflora; antibiotic resistance; selection; mutation frequency; biological fitness; pharmacokinetics; pharmacodynamics; β-lactam antibiotics; suboptimal dosing regimen; Mikrobiologi; Microbiology; Mikrobiologi; Klinisk bakteriologi; Clinical Bacteriology;

   Sammanfattning : Antibiotic treatment causes an ecological disturbance on the human microflora. Four commensal bacteria: E. coli, enterococci, a-streptococci and coagulase-negative staphylococci, from patients with extensive, high antibiotic usage were investigated with regard to resistance pattern and mutation frequency. LÄS MER