Search for dissertations about: "amyloid structure"

Showing result 1 - 5 of 96 swedish dissertations containing the words amyloid structure.

  1. 1. The amyloid : structure, properties and application

    Author : Mantas Malisauskas; Ludmilla Morozova-Roche; Fabrizio Chiti; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; amyloid; oligomers; AFM; cytotoxicity; biotemplating; lysozyme; Biochemistry; Biokemi;

    Abstract : Protein aggregation, leading to the formation and depositions of amyloids, is a cause for a number of diseases such as Alzheimer’s and Creutzfeld-Jacob’s disease, systemic amyloidoses, type II diabetes and others . More than 20 proteins are associated with protein misfolding diseases and even a larger number of proteins can self-assemble into amyloid in vitro. READ MORE

  2. 2. Proislet Amyloid Polypeptide (proIAPP) : Impaired Processing is an Important Factor in Early Amyloidogenesis in Type 2 Diabetes

    Author : Johan F. Paulsson; Gunilla Westermark; Christer Betsholtz; Linköpings universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biosynthesis amyloid; Genetics amyloid; Metabolism amyloid; Islets of Langerhans; Proprotein convertases; Posttranslation protein processing; Medical cell biology; Medicinsk cellbiologi;

    Abstract : Amyloid is defined as extracellular protein aggregates with a characteristic fibrillar ultra-structure, Congo red affinity and a unique x-ray diffraction pattern. At present, 25 different human amyloid fibril proteins have been identified, and amyloid aggregation is associated with pathological manifestations such as Alzheimer’s disease, spongiform encephalopathy and type 2 diabetes. READ MORE

  3. 3. Islet amyloid polypeptide (IAPP) in Type 2 diabetes and Alzheimer disease

    Author : Marie Oskarsson; Gunilla Westermark; Mikael Oliveberg; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; amyloid; IAPP; Abeta; type 2 diabetes; Alzheimer disease; BRICHOS; heparan sulfate; islet amyloid; amyloid plaques; seeding; Medical Cell Biology; Medicinsk cellbiologi;

    Abstract : The misfolding and aggregation of the beta cell hormone islet amyloid polypeptide (IAPP) into amyloid fibrils is the main pathological finding in islets of Langerhans in type 2 diabetes. Pathological assemblies of IAPP are cytotoxic and believed to contribute to the loss of insulin-producing beta cells. READ MORE

  4. 4. Protein complexes : assembly, structure and function

    Author : Kristina Wilhelm; Ludmilla Ludmilla Morozova-Roche; Catharina Svanborg; Umeå universitet; []
    Keywords : HAMLET; ELOA; lysozyme; amyloid; medicinsk biokemi; Medical Biochemistry;

    Abstract :  Most proteins must fold into their native conformations to fulfil their biological functions. Failure of proteins to fold leads to cell pathology and a broad range of human diseases referred to as protein misfolding disease, e.g., Alzheimer’s disease, Parkinson’s disease, and type II diabetes. READ MORE

  5. 5. NMR studies of the amyloid beta-peptide

    Author : Jens Danielsson; Astrid Gräslund; Chris Dobson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NMR; amyloid beta peptide; structure; metal interaction; diffusion; Biophysics; Biofysik;

    Abstract : The Amyloid beta peptide (Ab) is related to Alzheimer’s disease and is suggested to be the molecular pathogenic species of the disease, probably through the neurotoxic effect of Ab oligomers. Here the results from biophysical studies of Ab and fragments thereof, are presented. READ MORE