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| | Amyloid Plaque: 2001 |
 | | Separation of amyloid cores from neurons and degradation of amyloid cores by cytoplasmic processes of hypertrophic astrocytes suggest the protective and defensive character of astrocytic response to fibrillar Abeta. | | | In fact, amyloid fibrils fuse to and emanate from the vascular basement membrane. | | | In this study, we have examined how Abeta deposition is associated with immune responses. |
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http://lansbury.bwh.harvard.edu/Literature/Review/amyloid_plaque_2001.htm
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| | The Amyloid Proteins of Alzheimer's Disease as Potential Targets for Drug Therapy |
| | Etretinate is a retinoid that is effective in a number of keratinizing conditions. | | | Dimethyl sulfoxide may also have clinical utility in patients with amyloid A systemic amyloidosis and lichen amyloidosis. | | | These mechanisms form a framework for studying Alzheimer amyloids and designing intervention. |
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http://www.dmso.org/articles/alzheimers/alzheim1.htm
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| | Amyloid Protein |
| | Soluble amyloid is transformed to amyloid fibers within a grid space in two possible ways. | | | In other words, for each grid space, a uniformly distrubed random variable between 0 and 1 is generated and if its value is less than p, then a random concentration of fibers is placed in the grid space. | | | If there are no fibers present in the grid space, then new fiber nucleation based on the presence of fibers in the surrouding grid spaces must be considered. |
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http://www.math.ubc.ca/~ais/website/formulation/amyloid.html
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| | Prions |
| | The degree of similarity we have observed in the diffraction patterns of these different amyloid samples is indicative of a common core molecular structure at least at the level of the protofilament. | | | The intense reflection at 4.7 to 4.8 A Ý that dominates the meridional diffraction patterns of amyloid fibrils is derived from the mean separation of the hydrogen-bonded b-strands that are arranged perpendicular to the fibre axis in the cross-b structure (Figure 2). | | | Isolation and characterisation of the integral glycosaminoglycan constitutents of human amyloid A and monoclonal light-chain amyloid fibrils. |
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http://www.mad-cow.org/~tom/structural_studies.html
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| | HHMI News: Amyloid Fibers Sprout One Step at a Time |
| | The analytical approaches revealed that the yeast amyloid fibers grow by the addition, one by one, of individual monomers - rather than assembly of amorphous, globular oligomers. | | | “The process of forming amyloids seems to be implicated in disease perhaps as much as the actual aggregates themselves,” said Weissman. | | | “Investigators are now screening for drugs that would prevent amyloid from forming, to treat these disorders,” said Weissman. |
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http://www.hhmi.org/news/weissman4.html
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| | Alzforum: Live Discussions: Now You See Them, Now You Don't: The Amyloid Channel Hypothesis |
| | A large body of evidence has focused on the ability of amyloid peptides to interact with membranes. | | | In the sections that follow, we review the evidence for channel formation by the amyloid peptides which have been most studied by these techniques. | | | These physiologic effects are strikingly similar to those observed with disease-related amyloid peptides (Schubert et al., 1995; Kawahara et al., 2000). |
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http://www.alzforum.org/res/for/journal/kagan
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| | VASCULITIS, AMYLOIDOSIS, IMMUNODEFICIENCY |
| | Amyloid arthropathy, mostly limited to the joints and flexor retinaculum, is a problem in kidney-failure patients who have been on hemodialysis for years. | | | Whatever is really happening, enough amyloid in an organ makes it rubbery and waxy and (sometimes) useless. | | | Their common link is that they are beta-pleated sheets (rather than α helices), and therefore cannot be effectively handled by the body. |
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http://www.pathguy.com/lectures/imm-iii.htm
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| | 2001-2002 Progress Report: Beta-Amyloid |
| | In a study of brain tissue after death among 211 participants in the study, investigators evaluated the relationship among CAA, dementia, and cognitive function (Pfeifer et al., 2002). | | | In fact, two of the six animals treated with clioquinol had no sedimentable beta-amyloid, and no beta-amyloid could be detected using very specific and sensitive immunological techniques. | | | Other researchers are working to deepen our understanding of the relationship between beta-amyloid plaques and neurofibrillary tangles. |
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http://www.alzheimers.org/pr01-02/08.htm
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| | Cerebral amyloid angiopathy |
| | Onset is at age 40-60 with headaches, brain hemorrhage often in the parietal lobe, strokes, and dementia. | | | Brain stem, spinal cord, and cerebellum all exhibit amyloid deposits, but hemorrhage typically does not occur. | | | As in most neurologic diseases, diagnosis is made most often from the patient's history, with careful inquiry into family history and the patient's onset and pattern of symptoms, as well as neurologic examination. |
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http://www.healthatoz.com/healthatoz/Atoz/ency/cerebral_amyloid_angiopathy.jsp
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| | UpToDate Amyloid cardiomyopathy |
| | This distinction was illustrated in a review of 36 patients with amyloid heart disease: 12 with familial (mostly familial amyloidotic polyneuropathy) and 24 with AL amyloidosis [3]. | | | Clinical evidence of cardiac involvement occurs in up to 50 percent of patients with AL amyloidosis, 10 percent with AA amyloidosis, and less than 5 percent with familial syndromes [1,2]. | | | — Amyloid cardiomyopathy is defined pathologically by the deposition of amyloid in the myocardium (show histology 1) and clinically by signs of myocardial or conduction system dysfunction. |
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http://patients.uptodate.com/topic.asp?file=myoperic/5672
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| | Biophysical Journal: Mechanism of Amyloid Spherulite Formation by Bovine Insulin, The |
| | In this article, the structures of spherulites formed under different conditions are described and compared using a variety of microscopic techniques. | | | Surprisingly, spherulitic deposits have also been observed in vivo associated with mammary tumors in dogs (Taniyama et al., 2000; Vos and Gruys, 1985) and with amyloid tumors, localized nodular masses of amyloid deposits not linked to systemic amyloidosis, observed in the jejunum, part of the small intestine (Acebo et al., 1999). | | | The formation of amyloid-containing spherulite-like structures has been observed in some instances of amyloid diseases, as well as in amyloid fibril-containing solutions in vitro. |
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http://www.findarticles.com/p/articles/mi_qa3938/is_200503/ai_n13504194
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| | eMedicine - Amyloid Angiopathy : Article by Jose G Merino, MD |
| | Medicine is a constantly changing science and not all therapies are clearly established. | | | It is a homogenous, intensely eosinophilic material that gives a smudged appearance by light microscopy. | | | Ellis RJ, Olichney JM, Thal LJ, et al: Cerebral amyloid angiopathy in the brains of patients with Alzheimer's disease: the CERAD experience, Part XV. |
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http://www.emedicine.com/neuro/topic628.htm
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| | AMYLOID |
| | The first and only journal devoted entirely to amyloid research and clinical developments! | | | To subscribe to Amyloid, The International Journal of Experimental and Clinical Investigation | | | Vascular Beta-amyloid in Alzheimer's disease angiopathy is produced by proliferating and degenerating smooth muscle cells. |
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http://medicine.bu.edu/amyloid/amyloid.htm
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| | Amyloid - Wikipedia, the free encyclopedia |
| | The name amyloid comes from the early mistaken identification of the substance as starch (amylum in Latin), based on crude iodine-staining techniques. | | | For example, humans produce an amyloidogenic peptide associated with type II diabetes, but, in rodentia, a proline is substituted in a critical location and amyloidogenesis does not occur. | | | Congophillic amyloid plaques generally cause apple-green birefringence, when viewed through crossed polarimetric filters. |
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http://en.wikipedia.org/wiki/Amyloid
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| | C&EN: SCIENCE & TECHNOLOGY - WHAT'S BEHIND AMYLOID DISEASES? |
| | For years, most researchers have backed the notion that clumps of long amyloid fibrils located in the brain and other organs are responsible for killing neurons and other cells in patients who have these conditions. | | | CandEN: SCIENCE and TECHNOLOGY - WHAT'S BEHIND AMYLOID DISEASES? | | | "It may be that in the neurodegenerative diseases characterized by fibrillization--which is essentially all of them--the fibrillization produces, as an alternative product, an amyloid pore," Lansbury says. |
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http://pubs.acs.org/cen/science/8032/8032sci1.html
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| | Amyloid clearly implicated in Alzheimer's disease -- Berger 317 (7151): 102 -- BMJ |
| | Both of these observations point to a potential therapeutic approach to Alzheimer's disease. | | | Cerebrospinal fluid was taken from 15 patients with clinical Alzheimer's disease and compared with that from 19 patients who had other neurological diseases (Nature Medicine 1998;4:832-4). | | | The researchers used fluorescence correlation spectroscopy to identify single B amyloid aggregates in the cerebrospinal fluid of patients with Alzheimer's disease. |
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http://bmj.bmjjournals.com/cgi/content/full/317/7151/102
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| | Why do amyloid diseases strike different tissues? |
| | While work pursuing new therapeutic strategies has continued in the Kelly laboratory, he and his colleagues have also been asking basic questions about the biology of amyloid diseases. | | | Familial amyloid polyneuropathy patients have amyloid plaques in their peripheral neurons, for instance, and familial amyloid cardiomyopathy patients have amyloid plaques in their hearts, whereas CNS selective amyloid patients have deposits in their brains. | | | Researchers at The Scripps Research Institute are reporting the results of a recent study that addresses why different tissues in the human body vary in their susceptibility to "amyloid" diseases, which include Alzheimer's disease and a cluster of ailments called the familial amyloidoses. |
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http://www.medicalnewstoday.com/medicalnews.php?newsid=22501
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| | Amyloid Precursor Protein (APP) and Amyloid β |
| | Alzheimer's disease (AD) is a debilitating neurodegenerative condition characterized by the loss of cognitive skills and severe behavioral changes (dementia). | | | The Amyloid Protein Precursor (APP) and Alzheimer's Disease | | | The principle protein implicated in the development of Alzheimer's disease is the Amyloid Precursor Protein (APP). |
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http://www.upstate.com/features/app_lp.asp?c=221&r=556
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| | Senile cerebral amyloid angiopathy |
| | You should promptly seek professional medical care if you have any concern about your health, and you should always consult your physician before starting a fitness regimen. | | | Senile cerebral amyloid angiopathy is characterized by deposits of amyloid protein in the walls of the arteries of the brain, which increases the risk of bleeding into the brain (hemorrhagic stroke). | | | Senile cerebral amyloid angiopathy is a cause of lobar intracerebral hemorrhage (bleeding in a localized area of the brain, a form of stroke) in the elderly. |
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http://www.healthcentral.com/ency/408/000719.html
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| | Amyloid |
| | Liver transplantation may be effective therapy for stabilizing disease | | | Polyneuropathy: Occurs in 20% of patients with light chain amyloid | | | May have similar clinical manifestations as heterzygotes: Illness not more severe |
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http://www.neuro.wustl.edu/neuromuscular/nother/amyloid.htm
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| | Taylor & Francis Journals: Welcome |
| | Amyloid is recognised as one of the leaders in the publication of the classification of the amyloid proteins and the associated disorders as well as clinical studies of all aspects of the amyloid related neurodegenerative diseases and major clinical studies on the inherited amyloidosis, especially those related to transthyretin. | | | Amyloid: the Journal of Protein Folding Disorders is dedicated to the study of all aspects of the protein groups and associated disorders that are classified as the amyloidoses as well as other disorders associated with abnormal protein folding. | | | The Journal has a major focus on etiology, pathogenesis, histopathology, chemical structure and the nature of fibrillogenesis and also publishes papers on the genetic aspects (both basic and clinical) of many of these disorders. |
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http://www.tandf.co.uk/journals/titles/13506129.asp
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| | Amyloid Plaques |
| | The formation of amyloid plaques and neurofibrillary tangles are thought to contribute to the degradation of the neurons (nerve cells) in the brain and the subsequent symptoms of Alzheimer's disease. | | | One of the hallmarks of Alzheimer's disease is the accumulation of amyloid plaques between nerve cells (neurons) in the brain. | | | Amyloid is a general term for protein fragments that the body produces normally. |
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http://www.ahaf.org/alzdis/about/AmyloidPlaques.htm
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| | beta Amyloid peptide (ab3698) datasheet |
| | Amyloid beta peptide of Alzheimer's disease downregulates Bcl-2 and upregulates bax expression in human neurons. | | | Products: Neuroscience >> Neurodegeneration >> Alzheimer's >> Amyloid | | | Transcription factor NF-kappaB is activated in primary neurons by amyloid beta peptides and in neurons surrounding early plaques from patients with Alzheimer disease. |
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http://www.abcam.com/?datasheet=3698
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| | A new species of amyloid peptide |
| | Bethesda, MD — Scientists have identified a new, longer species of amyloid β-peptide that has the potential to be a new target for the treatment of Alzheimer's disease. | | | Therefore, the problem of production, accumulation, and clearance of amyloid β-peptide in the brain emerges as one of the possible rational approaches for the treatment of Alzheimer's disease. | | | While the exact pathogenic role of amyloid β-peptide in Alzheimer's disease has not yet been definitely established, accumulating evidence supports the hypothesis that amyloid β-peptide production and deposition in the brain could be a causative event in Alzheimer's disease. |
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http://www.eurekalert.org/pub_releases/2004-11/asfb-ans112304.php
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| | DRL Islet Amyloid Laboratory |
| | Amyloid is the name given to an insoluble mass of fibrillar protein that is deposited in several pathological conditions such as in the brain in Alzheimer's disease, in pancreatic islets in Type 2 diabetes and in other organs in chronic arthritis. | | | The Oxford amyloid research group, headed by Dr Anne Clark, sucessfully identified the component peptide (islet amyloid polypeptide, IAPP, amylin), of insoluble amyloid deposits in the pancreas of diabetic patients in 1987. | | | Laboratory studies on islet amyloid are complicated by the lack of amyloid deposits in rodent models of diabetes. |
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http://www.drl.ox.ac.uk/amyloid.html
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| | MedlinePlus Medical Encyclopedia: Secondary systemic amyloid |
| | The symptoms are related to the organs that become affected with the deposits. | | | It is found in association with chronic infection or chronic inflammatory disease. | | | Other tests may include: a skin biopsy of subcutaneous fat, a rectal mucosa biopsy, or a bone marrow biopsy. |
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http://www.nlm.nih.gov/medlineplus/ency/article/000585.htm
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| | Prion disease |
| | This is in contrast to peripheral amyloid disorders in which the amyloid proteins are present at high concentrations. | | | As a result, its clinical use is often associated with interactions with other drugs when the compounds compete for the same binding site on the albumin molecule (17). | | | Moreover, the data suggest that some drugs that display an affinity for albumin may enhance beta-amyloid formation and promote the development of Alzheimer's disease." |
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http://www.mad-cow.org/may99_sci_news.html
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| | Serum Amyloid P Component Prevents Proteolysis of the Amyloid Fibrils of Alzheimer Disease and Systemic Amyloidosis -- ... |
| | Here we show that SAP prevents proteolysis of the amyloid fibrils of Alzheimer disease, of systemic amyloid A amyloidosis and of systemic monoclonal light chain amyloidosis and may thereby contribute to their persistence in vivo. | | | Serum Amyloid P Component Prevents Proteolysis of the Amyloid Fibrils of Alzheimer Disease and Systemic Amyloidosis | | | Serum Amyloid P Component Prevents Proteolysis of the Amyloid Fibrils of Alzheimer Disease and Systemic Amyloidosis -- Tennent et al. |
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http://www.pnas.org/cgi/content/abstract/92/10/4299
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| | Fighting Alzheimer's Disease: Go for the Beta-Amyloid! |
| | Side effects in humans could range from "none to very significant," as the immune response might not be restricted to brain amyloid, but also could trigger an autoimmune attack on the kidneys, joints, and other organs. |
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http://www.webmd.com/content/article/29/1728_63331
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| | Upstate - Protein Products - APP/Aβ - Amyloid β |
| | Phosphorylation of APP may prevent cleavage of APP and formation of Abeta. | | | Abeta forms are thought to induce oxidative stress and may directly induce apoptosis, although the precise role of Abeta in AD has yet to be elucidated. | | | The resulting protein, termed APP+1, may serve as a marker for early stage AD. |
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http://www.upstate.com/browse/proteinproducts.asp?ProteinID=1525
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| | Amyloid A antibodies from RDI Divison of Fitzgerald Industries Intl |
| | Description/Specificity Antibody REU-86.2 is useful for the detection of AA-type amyloid and for the discrimination from other type of amyloid (AL-type and ß2M-amyloid) in human tissue biopsies. | | | We are not responsible for any patent infringements that might result with the use of or derivation of this product. | | | Suitable for frozen tissue and paraffin sections (no proteolytic treatment required) |
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http://www.researchd.com/neuroabs/pro10703.htm
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| | Amyloid pathology |
| | Amyloid (red) is deposited along muscle fiber surfaces and in the perimysium | | | Amyloid is deposited in a vessel wall (arrow) |
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http://www.neuro.wustl.edu/neuromuscular/pathol/amyloidp.htm
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