Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Host-parasite interaction"”.
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Host parasite interaction in a mouse model of inflammatory bowel disease
… world, where infection with intestinal parasites is common.The hygiene hypothesis suggests lack of infection predisposes to the development of IBD ingenetically susceptible people. However, little is known immunologically about how gutparasites alter IBD progression. We have used mdrla …
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Host-Parasite Interaction of Eight Varieties of Oats Infected With Race 202 of Crown Rust
Made available in DSpace on 2014-12-04T20:16:49Z (GMT). No. of bitstreams: 1 0015259.pdf: 4842200 bytes, checksum: 4850543d548dd637a23e1474fe67c81f (MD5) Previous issue date: 1955
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Mycoplasma Pneumoniae Infections - Role of Nucleotide Metabolism in the Mechanism of Pathogenesis
… pneumoniae induces a cytopathic effect (CPE) in host cells is not clearly defined. This study was designed to delineate some of the factors involved in the mechanism of pathogenesis of M. pneumoniae infection. Two major areas affecting the host-parasite interaction were studied. These included …
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Cryptosporidium Uses Its Cspv1 Virus to Activate Host Type I IFN Response and Attenuate IFN-Gamma-Mediated Epithelial Anti-Parasitic Defense
Cryptosporidium, an apicomplexan protozoan parasite that infects the gastrointestinal epithelium, is a leading cause of infectious diarrhea and diarrheal-related death in young children worldwide and an opportunistic pathogen in immunocompromised individuals such as HIV/AIDS patients. There is no …
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Entamoeba histolytica-Induced Caspase-4 Activation Regulates IL-1β Secretion Through Caspase-1
… the remaining 10% of infected individuals, the parasite breaches the intestinal barrier causing amebic colitis and in rare cases, it can cause extra-intestinal lesions, mainly liver abscesses. During invasion, Eh encounter macrophages in the lamina propria and this intricate host-parasite …
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Characterization of the chitinolytic system during the mycoparasitic interaction between Trichoderma aggressivum f. aggressivum and different host strains of Agaricus bisporus /
… such as chitinases, which actively degrade a host's cell wall. Therefore, the intent of this study was to examine the production of chitinase enzymes during the host-parasite interaction of Agaricus bisporus (commercial mushroom) and Triclzodemza aggressivum, focusing specifically on chitinase …
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Chromosomal evolution in mosquitoes - vectors of diseases
… of vector biology, such as sex determination, host-parasite interaction, ecology, feeding behavior, immunity and evolutionary trends and can be used for the development of new strategies for vector control. We developed the first map of the mitotic chromosomes of the major vector for West Nile …
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Structure of the trypanosome transferrin receptor and insights into ligand binding and therapeutic strategies
… a complex and sophisticated interface with hosts to acquire nutrients and protect against the host immune system. The variant surface glycoprotein (VSG) forms a dense and dynamic protective coat, which serves to defend against the immunoglobulin-mediated host response. In addition, a unique …
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Aspects of the ecology of Scolypopa australis (Walker) (Homoptera:Ricaniidae) and its parasite Centrodora scolypopae (Valentine) (Hymenoptera: Aphelinidae)
The ecology, population dynamics and interaction, of natural populations of the univoltine passion vine hopper, Scolypopa australis Walker, and its egg parasite, Centrodora scolypopae Valentine, were studied in a bracken and blackberry filled gully near Hamilton, New Zealand, from 1980-85. The S. …
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Variable immunity and its consequences for parasite dynamics
… be united by three common factors: susceptible hosts, parasites, and environmental conditions. Over the past three decades, disease ecology has provided overwhelming evidence that environmental conditions can shape disease risk by altering host-parasite interactions. For example, shifting global …
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Developing a genetic toolkit for plant-parasitic nematodes
… major groups of plant-parasitic nematodes: endoparasites and ectoparasites. The endo-parasites are the most economically important, and consequently the most widely studied. Endo parasitic nematodes, e.g., cyst nematodes, spend most or in some cases their entire life within the host, and feed …
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Population Genetics and Host Specificity of a Rare Parasitic Plant, Cuscuta harperi
… range; it is also exhibits a high level of host specificity, parasitizing only a few select species. <em>C. harperi</em> is of conservation concern due to small population sizes and threats from habitat degradation.</p> <p>Here we develop genetic markers to address questions regarding …
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Neospora caninum - eine Abortursache beim Rind
… abortions in cattle populations infected by this parasite. In 1988 the Toxoplasma-like protozoon found in dogs was named N. caninum. In more than 40 countries N. caninum has been diagnosed since that time and about 17 different species were found to host infections by N. caninum. There are reports …
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Mechanisms underlying Leishmania parasites survival and dissemination at late stage of infection in human macrophages
Leishmania parasites are the causative agent of a wide range of human diseases known as leishmaniasis. The progression of disease pathogenesis is dependent on the ability of intracellular parasites to disseminate between human macrophages. It is assumed that parasites could exit macrophages …
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Untangling the coevolutionary history between doves and their parasitic lice
In host-parasite systems, any given host species can be associated with multiple types of parasites, each of which can have a unique ecological relationship with the host. However, it remains unclear how these ecological differences link to evolutionary patterns. What shapes the dynamics of a …
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Characterization of a Novel Sensing Mechanism Governing Antigenic Variation in P. Falciparum
… results in antigenic variation, allowing the parasite to evade the human immune system and cause chronic infections. The molecular mechanisms that control activation and silencing of individual var genes, as well as coordination of the switching process, presently remain incompletely defined. …
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Transcriptomic and proteomic analysis of Ascaris suum larvae during their hepato-tracheal migration
… and Ascaris suum are amongst the most prevalent parasites of humans and pigs, respectively. Ascaris infections cause serious public health problems and significant economic losses in the pig industry. Traditionally ascariasis is controlled by mass treatment with anthelmintics. However, due to the …
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Population Genetics Analysis of the Grass Shrimp Palaemonetes Pugio Using Single Strand Conformation Polymorphism
… pugio, populations or the effects the parasite Microphallus turgidus has on it. The objective of this study was to determine the amount of genetic diversity of the shrimp populations based on locality and parasite load. In order to examine the genetics of P. pugio, shrimp DNA was …
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Massive Exchange of mRNA between a Parasitic Plant and its Hosts
… organ that functions to connect them with their host's vascular system. The Cuscuta haustorium is remarkable in that it enables mRNA movement to occur between hosts and parasite, but little is known about the mechanisms regulating cross-species mRNA transfer or its biological significance to the …
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