Search for dissertations about: "streptococcus gordonii"

Showing result 1 - 5 of 7 swedish dissertations containing the words streptococcus gordonii.

2. 1. Structural studies of the surface adhesin SspB from Streptococcus gordonii

   Author : Nina Forsgren; Karina Persson; Inger Andersson; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Streptococcus gordonii; X-ray crystallography; surface adhesin; dental plaque; structural biology; Structural biology; Strukturbiologi; ODONTOLOGY; ODONTOLOGI; odontologi; Odontology;

   Abstract : Surface proteins on microorganisms that build up the oral biofilm are key players in the formation of the biofilm. Antigen I/II proteins are surface adhesins found on virtually all oral streptococci and share a conserved multi-domain architecture. These adhesins bind surface components on other bacteria and on host cells. READ MORE

4. 2. Adhesion-related interactions of Actinomyces and Streptococcus biofilm bacteria

   Author : Mirva Drobni; Nicklas Strömberg; Karl-Eric Magnusson; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; biofilm; Actinomyces; Streptococcus; adhesion; Cariology; Cariologi;

   Abstract : Adhesion of bacteria is a key event in biofilm formation and is mediated by bacterial adhesins recognising host or bacterial partner receptors. In oral biofilm formation, primary Actinomyces and Streptococcus colonizers adhere to salivary pellicle proteins such as proline-rich proteins (PRPs) as well as to mucosal surfaces. READ MORE

5. 3. Responses to External Cues in Oral Bacteria

   Author : Carolina Robertsson; Claes Wickström; Gunnel Svensäter; Julia R Davies; Mattias Collin; Malmö universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oral Microbiology; Oral Biofilms; Saliva; Salivary mucin MUC5B; Streptococcus; Actinomyces;

   Abstract : This thesis investigates responses to external cues in oral bacteria on a molecular level. Paper I maps Ser/Thr/Tyr phosphorylated proteins in relation to the general proteome in an oral commensal streptococcus (Streptococcus gordonii DL1). READ MORE

6. 4. Viridans group streptococci septicaemia and endocarditis : molecular diagnostics, antibiotic susceptibility and cinical aspects

   Author : Katarina Westling; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Viridans group streptococci; septicaemia; endocarditis; molecular diagnostics; rnpb; antibiotic susceptibility; linezolid; dalbavancin; tigecyclin;

   Abstract : Viridans group streptococci (VGS) are inhabitants in the oral cavity and in the gastrointestinal tract. They cause severe infections, they are responsible for up to 39 % of the cases of septicaemia in neutropenic patients with haematological diseases and cause infective endocarditis (IE), mainly in patients with native valves and previous heart disease. READ MORE

7. 5. On bacteria Persisting Root Canal Treament. Identification and potential mechanisms of resistance to antimicrobial measures

   Author : Luis Chávez de Paz; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Abstract : Anti-microbial treatment of infected root canals using mechanical instrumentation and chemicals for disinfection does not always lead to complete bacterial elimination and treatment failure may therefore result. As certain bacteria appear more resilient to endodontic treatment than others, the present thesis addresses the species that can most frequently be isolated after treatment and explores mechanisms, which could potentially afford these organisms resistance to anti-microbial treatment measures. READ MORE