Дисертації з теми "Alzheimers’s disease"
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Holt, Jim. "Alzheimer’s Disease." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etsu-works/6482.
Повний текст джерела梁欣珮 and Yan-pui Irene Leung. "Potential impact of alzheimer's disease on retina." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42905059.
Повний текст джерелаHolt, Jim, J. Guduru, and S. Pathi. "Alzheimer’s Disease, 2nd Revision." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/6478.
Повний текст джерелаHolt, Jim, J. Guduru, M. Medipally, and S. Pathi. "Alzheimer’s Disease, 1st Revision." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etsu-works/6480.
Повний текст джерелаRickle, Annika. "PTEN and Akt signalling in Alzheimer's disease /." Stockholm : Karolinska institutet, 2005. http://diss.kib.ki.se/2005/91-7140-514-3/.
Повний текст джерелаHolt, Jim, Christopher T. Bridges, and Christian B. Potter. "Dementia (Alzheimer’s Disease), 3rd Revision." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/6472.
Повний текст джерелаDomingues, Catarina de Barros Pinto Salvador. "Chemokines impact in Alzheimer’s disease." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16081.
Повний текст джерелаAlzheimer’s Disease (AD) is a neurodegenerative disorder neuropathologically characterized by the presence of extracellular senile plaques, intracellular neurofibrillary tangles and synaptic loss. Neuroinflammation has been associated with some neurodegenerative diseases, such as AD. In AD, increased Aβ production and aggregation, have a fundamental role in the activation of the inflammatory process. In turn, this could be fundamental in the early stages of this pathology, regarding the Aβ clearance and brain protection. However, chronic inflammation leads to an increase of the inflammatory mediators, such as cytokines, released by activated microglia, astrocytes, and neurons. The excessive production of these inflammatory components promotes alterations in both amyloid precursor protein (APP) expression and processing, stimulating the increase of Aβ accumulation and abnormal tau phosphorylation. This results in neurotoxic effects, irreversible damage and neuronal loss. Chronic inflammation is a feature of AD however, little is known about the effects of some chemokines on its pathogenesis. Thus, the main aim of this thesis was to study the impact of the interleukin-8 (IL-8) and monocyte chemoattractant protein-1 (MCP-1) on apoptosis, APP and tau. The both studied chemokines resulted in small alterations regarding the cytotoxicity on SH-SY5Y differentiated cells, being a significant increase in apoptosis observed only for the MCP-1 at the highest concentration. For the APP processing no significant differences were obtained, although a tendency to increase at different concentrations and periods was registered for both IL-8 and MCP-1. With respect to tau and other cytoskeleton-associated proteins, it was possible to observe a tendency to increase in the phosphorylated residue (Ser396) at the higher concentrations, as well as alterations on actin and tubulin with an increase on acetylated-α tubulin. This effect can be translated by neuronal architectural and survival alterations. Therefore additional studies could contribute to a better understanding of the way that these chemokines act on AD pathogenesis.
A Doença de Alzheimer (DA) é uma doença neurodegenerativa, caracterizada pela presença de placas senis extracelulares, tranças neurofibrilares intracelulares e perda sináptica. A neuroinflamação tem sido associada com algumas doenças neurodegenerativas, tal como a DA. Na DA, a produção e agregação aumentada do péptido Aβ, tem um papel fundamental na activação do processo inflamatório, que pode ser importante nas fases iniciais da doença, devido à remoção de Aβ e à proteção do cérebro. No entanto, uma inflamação crónica leva a um aumento de mediadores inflamatórios como são as citocinas, libertadas por microglia activada, astrócitos e neurónios. A produção excessiva de componentes inflamatórios promove alterações tanto na expressão como no processamento da proteína percursora amilóide (APP), levando a uma maior acumulação de Aβ e fosforilação anormal da proteína tau. Isto resulta em efeitos neurotóxicos, dano irreversível e perda neuronal. A inflamação crónica é uma característica da DA, no entanto pouco se sabe sobre os efeitos de algumas quimiocinas na sua patogénese. Assim, o principal objectivo desta tese foi o estudo do impacto da IL-8 e da MCP-1 na apoptose, APP e tau. Ambas as quimiocinas em estudo resultaram em pequenas alterações ao nível da citotoxicidade de células SH-SY5Y diferenciadas, tendo sido apenas observado um aumento significativo da apoptose para MCP-1 à concentração mais elevada. Relativamente ao processamento de APP, não foram observadas alterações significativas, no entanto alguma tendência para aumentar a diferentes concentrações e períodos foi obtida tanto para a IL-8 como para a MCP-1. Ao nível da tau e outras proteínas associadas ao citoesqueleto, foi possível observar uma tendência de aumento do resíduo fosforilado Ser396 às concentrações mais elevadas assim como alterações na actina e tubulina, com um aumento da αtubulina acetilada. Este efeito pode ser traduzido em alterações na arquitetura e sobrevivência neuronal. Assim sendo, estudos adicionais podem contribuir para uma melhor compreensão do modo de ação destas quimiocinas na patogénese da DA.
Barra, Cátia Isabel de Almeida. "Inflammatory biomarkers in Alzheimer’s disease." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13277.
Повний текст джерелаAlzheimer’s disease (AD) is the most common form of dementia. Histopathologically it is characterized by the presence of two major hallmarks, the intracellular neurofibrillary tangles (NFT) and the extracellular senile plaques (SP), which are surrounded by activated astrocytes and microglia. Neuroinflammation has been associated with some neurodegenerative diseases. In AD the inflammatory process, prompted by increased Aβ production and aggregation, was reported to have a fundamental role in disease pathogenesis. In early stages the inflammation could have a beneficial role in the pathology, since it has been proposed that the microglia and astrocytes activated could be involved in (amyloid β) Aβ clearance. Nevertheless, the chronic activation of the microglia leads to excessive production of the inflammatory components, including cytokines. It promotes alterations in amyloid precursor protein (APP) expression and processing, stimulating the increase of Aβ accumulation, abnormal Tau phosphorylation and, consequently, neurotoxic effects, irreversible damage and loss of neurons. Since chronic neuroinflammation is a feature of AD, inflammatory proteins may constitute potential biomarkers candidates to assist clinical diagnosis of this dementia. Thus, the main aim of this study was to identify putative inflammatory biomarkers for AD by flow citometry analysis. For plasma samples of individuals examined by clinical dementia rating (CDR) and mini mental (MM) diagnostic tests were used. Subjects were subdivided in 3 distinct groups, a control group (CDR-/MM-) and two patient groups, CDR+/MM- and CRD+/MM+, the former may include mild cognitive impairment (MCI) patients and the latest group included 5 patients clinical diagnosed as AD. Data analysis revealed differences in the inflammatory proteins levels of both patients groups (CDR+/MM- and CDR+/MM+) in comparison to healthy individuals (CDR-/MM-). Interleukin-8 (IL-8) plasma levels were statistically different (P<0,05) from control group. Significant correlation between IL-8 concentrations and the CDR stages was also identified. Additionally, correlations of monocyte chemoattractant protein-1 (MCP-1) with both IL-8 and IL-6 were observed. Taken together these findings suggested that IL-8 could be a potential biomarker not only for AD but also for diagnosis of initial stages of dementia.
A doença de Alzheimer (DA) é o tipo de demência mais comum. Histopatologicamente é caracterizada pela presença de tranças neurofibrilares intracelulares (TNF) e de placas senis extracelulares (PS), as quais estão rodeadas pela microglia e por astrócitos. A neuroinflamação tem sido associada com várias doenças neurodegenerativas. Na DA o processo inflamatório, desencadeado pelo aumento da produção e agregação do péptido Aβ, desempenha um papel fundamental na patogénese da doença. Nas fases inicias, a inflamação possui um papel benéfico na patologia, uma vez que tem sido proposto que a microglia e os astrócitos quando ativados estão envolvidos na remoção de β-amilóide (Aβ). No entanto, a ativação crónica da microglia conduz à produção excessiva de componentes inflamatórios, incluindo citocinas. Isto provoca alterações na expressão e processamento da proteína percursora de amilóide (PPA), estimulando o aumento da produção e acumulação de Aβ, fosforilação anormal da proteína Tau e, consequentemente, efeitos neurotóxicos e perda de neurónios. Uma vez que a neuroinflamação crónica é uma característica da DA, proteínas inflamatórias poderão constituir potenciais candidatos a biomarcadores que auxiliem no diagnóstico clínico desta doença. Desta forma, o principal objectivo deste trabalho foi identificar biomarcadores inflamatórios para a DA através da técnica de citometria de fluxo. Para tal, foram analisadas amostras de plasma de doentes que foram, previamente, examinados por testes de avaliação cognitiva, clinical dementia rating (CDR) e mini mental (MM). Os sujeitos foram divididos em três grupos distintos, o grupo controlo (CDR-/MM-) e dois grupos de pacientes, CDR+/MM- e CDR+/MM+. O primeiro grupo de pacientes pode conter indivíduos com ligeiras alterações cognitivas (MCI) e o segundo inclui 5 pacientes clinicamente diagnosticados para DA. A análise dos dados revelou diferenças nos níveis de proteínas inflamatórias de ambos os grupos de doentes (CDR+/MM- e CDR+/MM+) em comparação com os indivíduos saudáveis (CDR-/MM-). Os níveis plasmáticos de interleucina-8 (IL-8) foram estatisticamente deferentes (p<0,05) do grupo controlo. Correlação significativa entre as concentrações de IL-8 e os estados de CDR foi identificada. Adicionalmente, foram observadas correlações entre MCP-1 e IL-8 e a IL-6. Em conjunto, estes resultados sugerem que a IL-8 poderá ser um potencial biomarcador não só para a DA mas também para o diagnóstico precoce de demência.
Navaratnam, Dasakumar Selveraj. "Cholinesterases in Alzheimer's disease." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306734.
Повний текст джерелаNewman, Tracey Anne. "Ageing and Alzheimer's disease." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246220.
Повний текст джерелаMontacute, Rebecca. "Infection in Alzheimer's disease." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/infection-in-alzheimers-disease(a69fbf77-1455-4a78-a700-54815cad926d).html.
Повний текст джерелаZubair, Mohammed. "Metabolomics in Alzheimer's disease." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/metabolomics-in-alzheimers-disease(0872757b-d25a-4c43-bd52-915d4cad21c6).html.
Повний текст джерелаShie, Feng-Shiun. "Cholesterol and Alzheimer's disease /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/6604.
Повний текст джерелаRoberts, Cathryn Emma Yorath. "Emotion and alzheimers disease." Thesis, Bangor University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506173.
Повний текст джерелаFokuoh, Evelyn, and Kesheng Wang. "A linear mixed model analysis of the APOE4 gene with the logical memory test total score in Alzheimer’s disease." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/211.
Повний текст джерелаArendt, Thomas, Martina K. Brückner, Markus Morawski, Carsten Jäger, and Hermann-Josef Gertz. "Early neurone loss in Alzheimer’s disease." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-160935.
Повний текст джерелаCarbone, Ilaria <1984>. "Human herpes virus and Alzheimer’s disease." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5255/.
Повний текст джерелаSchroeder, Sulana Kay. "Tau-Directed Immunotherapy for Alzheimer’s Disease." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6757.
Повний текст джерелаWang, Juelu. "Selective neurodegeneration in Alzheimer's disease and Parkinson's disease." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63267.
Повний текст джерелаMedicine, Faculty of
Graduate
Kanju, Patrick M. Suppiramaniam Vishnu. "Synaptic glutamate receptor dysfunction in tissue and animal models of Alzheimer's disease." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/doctoral/KANJU_PATRICK_11.pdf.
Повний текст джерелаHynd, Matthew. "Excitotoxic neurodegeneration in Alzheimer's disease /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18145.pdf.
Повний текст джерелаBlom, Elin. "Genetic Studies of Alzheimer's Disease." Doctoral thesis, Uppsala universitet, Institutionen för folkhälso- och vårdvetenskap, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9397.
Повний текст джерелаBakerink, Ronda Ann. "Semantic memory in Alzheimer's Disease." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27795.
Повний текст джерелаMedicine, Faculty of
Audiology and Speech Sciences, School of
Graduate
Williams, Abigail J. "Cystatin C and Alzheimer's disease." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/8547/.
Повний текст джерелаBeffert, Uwe. "Apolipoprotein E in Alzheimer's disease." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0021/NQ55300.pdf.
Повний текст джерелаBothmer, John. "Phosphoinositides, aging and Alzheimer's disease." Maastricht : Maastricht : Universitaire Pers Maastricht ; University Library, Maastricht University [Host], 1992. http://arno.unimaas.nl/show.cgi?fid=6504.
Повний текст джерелаHowell, Walter Mathias. "SNP technology and Alzheimer's disease /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-473-9/.
Повний текст джерелаNaidj, Sonia. "Visuospatial dysfunction in Alzheimer's disease." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23924.
Повний текст джерелаXu, Chun. "Morphological subtypes of Alzheimer's disease." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61223.
Повний текст джерелаThe study, based on (a) brain autopsy, (b) standardized histopathology, and (c) quantitative morphometry, shows heterogeneity in pathophenotypes of AD. Four morphological subgroups have been presently recognizes, by their characteristic histological abnormalities, and the densities, the distribution, and progression patterns of their lesions. The heterogeneity in pathophenotypes indicates that AD is not a disease with a single cause, but rather a syndrome with multiple elements involved in etiology and pathogenesis. These lead to different pathological features, and correspondingly, similar, but distinguishable clinical expressions.
Spillantini, Maria Grazia. "Molecular neuropathology of Alzheimer's disease." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282037.
Повний текст джерелаBourne, Nathan T. "Molecular mechanisms of Alzheimer's disease." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521906.
Повний текст джерелаSmith, M. A. "Protein structures and Alzheimer's disease." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291081.
Повний текст джерелаTreanor, James J. S. "Neurotrophic factors and Alzheimer's disease." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385730.
Повний текст джерелаBucks, Romola Starr. "Intrusion errors in Alzheimer's disease." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285578.
Повний текст джерелаFox, Sarah. "Oscillations memory and Alzheimer's disease." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/oscillations-memory-and-alzheimers-disease(bbacb2f0-74f3-4071-b02f-19c0c5570227).html.
Повний текст джерелаBenjamin, Maxwell J. "Autobiographical memory in Alzheimer's Disease." Thesis, Canterbury Christ Church University, 2013. http://create.canterbury.ac.uk/12348/.
Повний текст джерелаDavidson, Madeiene E. "Alzheimer's Disease: The Triple Threat." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/cmc_theses/1287.
Повний текст джерелаKim, Sohee. "Computational modeling in Alzheimer's disease." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1267541374.
Повний текст джерелаHuseby, Carol. "Molecular Neuropathology in Alzheimer's Disease." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1543314678552794.
Повний текст джерелаMorshed, Nader Francis. "Phosphoproteomics analysis of Alzheimer's disease." Thesis, Massachusetts Institute of Technology, 2021. https://hdl.handle.net/1721.1/130816.
Повний текст джерелаCataloged from the official PDF version of thesis.
Includes bibliographical references (pages [137]-[153]).
Alzheimer's disease (AD) is a form of dementia characterized by the appearance of amyloid-[beta] plaques, neurofibrillary tangles, and inflammation in brain regions involved in memory. Despite numerous clinical trials, a limited understanding of disease pathogenesis has prevented the development of effective therapies. Several lines of genetic and biomolecular evidence indicate that AD progression involves cellular signaling through neuronal and glial protein phosphorylation networks. In order to understand which phosphorylation networks are dysregulated, I use mass spectrometry to characterize the phosphoproteome of post-mortem brain tissue from AD patients and multiple mouse models of AD. Using computational analysis, I identified several signaling pathways that are dysregulated before neurodegeneration occurs. Many of these signaling factors were expressed primarily in non-neuronal cell types, including microglia, astrocytes, and oligodendrocytes.
My results highlight potential therapeutic targets in the signaling responses of glial cells and are split into two parts. In the first part of this thesis, I have quantified the phosphoproteome of the CK-p25, 5XFAD, and Tau P301S mouse models of neurodegeneration. I identified a shared response involving Siglec-F which was upregulated on a subset of reactive microglia. The human paralog Siglec-8 was also found to be upregulated on microglia in AD. Siglec-F and Siglec-8 were upregulated following microglial activation with interferon gamma (IFN[gamma]) in BV-2 cell line and human stem-cell derived microglia models. Siglec-F overexpression activates an endocytic and pyroptotic inflammatory response in BV-2 cells, dependent on its sialic acid substrates and immunoreceptor tyrosine-based inhibition motif (ITIM) phosphorylation sites. Related human Siglecs induced a similar response in BV-2 cells.
Collectively, my results point to an important role for mouse Siglec-F and human Siglec-8 in regulating microglial activation during neurodegeneration. In the second part of this thesis, I performed a combined analysis of the tyrosine, serine, and threonine phosphoproteome, and proteome of temporal cortex tissue from AD patients and aged matched controls. I identified several co-correlated peptide modules that were associated with varying levels of Tau, oligodendrocyte, astrocyte, microglia, and neuronal pathologies in different patients. I observed phosphorylation sites on known Tau-kinases and other novel signaling factors that were correlated these peptide modules. Finally, I used a data-driven statistical modeling approach to identify individual peptides and co-correlated signaling networks that were predictive of AD pathologies. Together, these results build a map of pathology-associated phosphorylation signaling events occurring in AD.
by Nader Francis Morshed.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Biological Engineering
Townsend, Kirk Phillip. "Microglia activation in Alzheimer's disease." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000489.
Повний текст джерелаMorris, Eva Marie. "Semantic Memory in Alzheimer's Disease." W&M ScholarWorks, 1999. https://scholarworks.wm.edu/etd/1539626235.
Повний текст джерелаVasseur, Janis S. "The geographical implications of Alzheimer's disease : an examination of the impact that Alzheimer's disease hs on family caregivers in Connecticut /." Abstract Full Text (PDF), 2008. http://eprints.ccsu.edu/archive/00000509/02/1965FT.pdf.
Повний текст джерелаThesis advisor: Cynthia Pope. "... in partial fulfillment of the requirements for the degree of Master of Science in Geography." Includes bibliographical references (leaves 85-90). Also available via the World Wide Web.
Lane, Fiona Mary. "Defining mechanisms of neurodegeneration associated with protein misfolding diseases." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/19542.
Повний текст джерелаFisher, Linda. "Inflammatory cytokines and NFκB in Alzheimer’s disease". Doctoral thesis, Stockholm University, Department of Neurochemistry, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-990.
Повний текст джерелаAlzheimer’s disease is the most common form of dementia. It is a neurodegenerative disorder characterized by extracellular senile plaques and intracellular neurofibrillary tangles. The main constituent of the senile plaques is the neurotoxic β-amyloid peptide. Surrounding the senile plaques are activated astrocytes and microglia, believed to contribute to neurotoxicity through secretion of proinflammatory cytokines, like interleukin-1β and interleukin-6. For many inflammatory actions, including the cytokine induction in glial cells, the transcription factor NFκB plays a key role. This suggests that therapeutical strategies aimed to control the development of Alzheimer’s disease could include administration of drugs that hinder NFκB activation.
The major aim of this thesis was to examine the effects of β-amyloid together with interleukin-1β on cytokine expression as well as NFκB activation in glial cells. The possibility to block NFκB activation, and downstream effects like interleukin-6 expression, by using an NFκB decoy was investigated. The possibility to improve the cellular uptake of the decoy by linking it to a cell-penetrating peptide was also investigated.
The results obtained provide supportive evidence that inflammatory cytokines are induced by β-amyloid, and that they can indeed potentiate its effects. The results further demonstrate that by blocking NFκB activation, the induction of interleukin-6 expression can be inhibited. By using an improved cellular delivery system, the uptake of the NFκB decoy and hence the downstream cytokine inhibition could be increased. In conclusion, these results demonstrate the possibility to decrease the inflammatory reactions taken place in Alzheimer’s disease brains, which may ultimately lead to a possible way of controlling this disorder.
Englund, Hillevi. "Soluble amyloid-β aggregates in Alzheimer’s disease". Doctoral thesis, Uppsala universitet, Institutionen för folkhälso- och vårdvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-98512.
Повний текст джерелаTejera, Darío [Verfasser]. "Microglial Activation in Alzheimer’s Disease / Darío Tejera." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1189730685/34.
Повний текст джерелаWhiteley, Chris G. "Alzheimer’s disease: making sense of the stress." SM Online Publishers LLC, 2016. http://hdl.handle.net/10962/67072.
Повний текст джерелаTo facilitate a deep understanding of the mechanisms involved in neurodegeneration and Alzheimer’s disease fundamental knowledge is required about the action and function of enzymes in the brain that not only metabolise arginine (neuronal nitric oxide synthase) but are closely associated with oxidative (superoxide dismutase; catalase; glutathione peroxidase) and/or nitrosative stress. In particular the focus extends towards enzymes that contribute to amyloid peptide aggregation and senile plaquedeposits (fibrillogenesis). Of special importance are the glycine zipper regions within these amyloid peptides, especially Aβ25-29 and Aβ29-33 (that contains two isoleucine residues) and the pentapeptide Aβ17-21 (that contains two phenylalanines), each generated by enzymatic cleavage of the intramembrane amyloid precursor protein. Use of antisense-sense technology has identified regions in each enzyme that are capable of binding with the amyloid peptides. After an initial inhibition of each enzyme there is an oligomerisation into soluble fibrils which accumulate and eventually precipitate. The use of nanoparticles do not just prevent but reverse the formation of these fibrils either by disrupting the binary adduct – enzyme-Aβ-peptide- or by reaction with, and therefore deplete, Aβ-monomers in solution and so block potential aggregation sites on the enzyme itself. Future therapy towards Alzheimer’s disease should target the C-terminal region of the amyloid precursor protein and substitute hydrophobic residues for the glycine amino acids within the glycine zipper region.
GANDHI, RONAK. "“CLICKED” BIVALENT MULTIFUNCTIONAL LIGANDS IN ALZHEIMER’S DISEASE." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/225.
Повний текст джерелаSmith, Simon. "Polyunsaturated fatty acid oxidation in Alzheimer’s disease." Thesis, Aston University, 2011. http://publications.aston.ac.uk/16499/.
Повний текст джерела