Sökning: "amyloid fibril"

Visar resultat 1 - 5 av 80 avhandlingar innehållade orden amyloid fibril.

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

    Författare :Johan F. Paulsson; Gunilla Westermark; Christer Betsholtz; Linköpings universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  2. 2. Synthesis of Ring-fused Peptidomimetics : Interacting with Amyloid Fibrils

    Författare :Dan E. Adolfsson; Fredrik Almqvist; Anna Linusson; Morten Grötli; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic chemistry; synthesis; peptidomimetics; thiazoline fused 2-pyridones; Alzheimer s disease; Parkinson s disease; Amyloid; Amyloid-beta; alfa-Synuclein; method development; organisk kemi; Organic Chemistry;

    Sammanfattning : Parkinson's and Alzheimer's disease are the two most common neurological disorders in humans. Both conditions involve progressive death of neurons in the central nervous system, decline in bodily functions and eventually (and invariably), death. So far, no cure exists and the available treatments can only ease symptoms. LÄS MER

  3. 3. Secondary Nucleation in Amyloid Formation

    Författare :Mattias Törnquist; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alzheimer s disease; amyloid; Ab42; aggregation mechanism; aggregation kinetics; secondary nucleation; Protein misfolding;

    Sammanfattning : Research into Alzheimer's disease is still hampered by a lack of fundamental understanding of the underlying mechanisms. While the aggregation of the amyloid β peptide (Aβ) into amyloid fibrils is highly implicated as a key factor in the disease, the molecular nature of its involvement has proven complex and elusive. LÄS MER

  4. 4. Apolipoprotein A-IV and Transthyretin in Swedish Forms of Systemic Amyloidosis

    Författare :Joakim Bergström; Per Westermark; Giampaolo Merlini; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pathology; Amyloid; Fibril; Aggregation; Apolipoprotein A-IV; Transthyretin; Seeding; Senile systemic amyloidosis; Familial amyloidotic polyneuropathy; Patologi; Pathology; Patologi;

    Sammanfattning : Over 20 different plasma proteins have been shown to have the capacity to undergo conformational changes and self-assemble into highly stable and insoluble amyloid fibrils. One, transthyretin (TTR), consists of 127 amino acid residues arranged in eight β-strands (named A to H) and is involved in two different clinical forms of amyloidosis. LÄS MER

  5. 5. Cellular Uptake of Amyloid Forming Proteins Related to Neurodegenerative Disease

    Författare :Emelie Vilhelmsson Wesén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aβ 1-40 ; flow cytometry; confocal microscopy; SH-SY5Y; fluorescence; Aβ 1-42 ; Alzheimer’s disease; amyloid fibril; α-synuclein; amyloid-β;

    Sammanfattning : Aggregation and deposition of disease-associated protein is a pathological hallmark of several human disorders, including Alzheimer’s disease (AD) and Parkinson’s disease (PD). These diseases are characterized by the formation of amyloid-β (Aβ) and α-synuclein (α-syn) amyloid fibrils, in extracellular and intracellular locations, respectively. LÄS MER