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Full-Text Articles in Medicine and Health Sciences
Immunomodulatory Roles Of The Lysosomal Sialidase Neuraminidase 1, Leigh Ellen Fremuth
Immunomodulatory Roles Of The Lysosomal Sialidase Neuraminidase 1, Leigh Ellen Fremuth
Theses and Dissertations (ETD)
Background Sialic acids are key sugar moieties located at the non-reducing terminals of glycan chains on glycoproteins and glycolipids. By virtue of their location, they influence the functions and biochemical properties of the macromolecules they are bound to. Removal of sialic acids in mammalian cells is carried out by four sialidases, which are differentially expressed and localized in distinct subcellular compartments. Neuraminidase 1 (NEU1), the most abundant and ubiquitous of the four sialidases, functions primarily in the acidic environment of the lysosomes, but can hydrolyze substrates at the plasma membrane, at least in certain cell types. The enzyme initiates the …
H5n1 Influenza Virus Induces A Parkinsonian Pathology, Haeman Jang
H5n1 Influenza Virus Induces A Parkinsonian Pathology, Haeman Jang
Theses and Dissertations (ETD)
The greatest threat for an influenza pandemic at this time is posed by the highly pathogenic H5N1 avian influenza virus. To date, 63% of the 436 known human cases of H5N1 infection have proven fatal. Animals infected by H5N1 viruses have demonstrated acute neurological signs ranging from mild encephalitis to motor disturbances and coma. However, no studies have examined the longer-term neurologic consequences of H5N1 infection. We show that this virus travels from the peripheral nervous system into the central nervous system (CNS) to higher levels of the neuroaxis, using C57BL/6J mice that are infected by the A/VN/1203/04 H5N1 virus …