Sökning: "protozoan"
Visar resultat 1 - 5 av 51 avhandlingar innehållade ordet protozoan.
1. The interplay between Giardia intestinalis and host intestinal epithelial cells : A tale of immune activation and suppression
Sammanfattning : Giardia intestinalis is a non-invasive, protozoan parasite causing the diarrheal disease giardiasis in a variety of mammals, including humans. The parasite has two main life cycle stages; disease-causing trophozoites and infectious cysts. Trophozoites colonize the host’s upper small intestine by attaching to intestinal epithelial cells (IECs). G. LÄS MER
2. Genome and transcriptome studies of the protozoan parasites Trypanosoma cruzi and Giardia intestinalis
Sammanfattning : Trypanosoma cruzi and Giardia intestinalis are two human pathogens and protozoan parasites responsible for the diseases Chagas disease and giardiasis, respectively. Both diseases cause su ering and illness in several million individuals. LÄS MER
3. The Salmonella enterica virulence : its role in bacterial adaption to mammalian and protozoan cells
Sammanfattning : Salmonellae are Gram-negative enteric bacteria and facultative intracellular pathogens responsible for a diversity of illnesses in a wide range of hosts, including man. Many serovars of Salmonella enterica harbor a plasmid that enhances bacterial virulence in infection models, and that seems to promote extraintestinal infection in man. LÄS MER
4. The aquatic microbial food web and occurence of predation-resistant and potentially pathogenic bacteria, such as Francisella tularensis
Sammanfattning : All natural aquatic systems harbour a vast variety of microorganisms. In the aquatic microbial food web, the larger microorganisms (i.e. protozoa) feed on the smaller microorganisms (i. LÄS MER
5. Studies of the recognition and activation of natural killer cells
Sammanfattning : Natural killer (NK) cells mediate part of the innate immune response that impedes the spread of invading microorganisms and shapes the downstream adaptive immune response. NK cells spontaneously kill tumor cells and other cells upon contact. Killing requires engagement of germline encoded receptors that mediate positive and negative signals. LÄS MER