Cerebral Amyloid

"Is this the cure for Alzheimer's disease?"

Letters in the alphabet of life:

http://www.vanderbilt.edu/exploration/ne ...

DNA:

DNA (deoxyribonucleic acid) is the master molecule of heredity.

It is composed of two strands connected by four bases in the
form a double helix. Each strand of DNA is composed of a
backbone and bases that are strung in a specific order.

The two DNA strands come together like a zipper.
The teeth, or bases, one side of the game with zip
bases corresponding to the other side.

The bases are adenine nucleic acids (A), guanine (G),
cytosine (C) and thiamine (T).

Adenine and thiamine always two together,
as well as guanine and cytosine. The four bases are the letters
in the alphabet of life.
Chemistry Visualization In the human brain:
http://books.nap.edu/openbook.php?record ...

Amyloid brain imaging in Alzheimer's disease with Pittsburgh Compound-B:
http://www3.interscience.wiley.com/cgi-b ...

Summary
This report describes the first human study of a novel amyloid-imaging positron emission tomography (PET) tracer, called Pittsburgh Compound-B (GDP), 16 patients diagnosed with mild AD and 9 controls. Compared with controls, AD patients typically showed marked retention of GDP in the areas of association cortex known to contain large amounts of amyloid deposits in AD. In the group of AD patients, retention GDP grew mostly in the frontal cortex (1.94 fold, P = 0.0001). Significant increases were also observed in parietal (1.71 fold, P = 0.0002), temporal (1.52 fold, P = 0.002), and occipital (1.54 fold, P = 0.002) and cortex striatum (1.76 times, p = 0.0001). retention GDP was equivalent in AD patients and controls in areas known to be relatively unaffected by amyloid deposition (such as the subcortical white matter, Pons and cerebellum). Studies in three young (21 years) and six healthy controls (69.5 ± 11 years) showed little retention of GDP in the cortical regions and no significant difference between the control group of young and older. In cortical areas, retention GDP inversely correlated with cerebral glucose metabolism determined with 18F-FDG. This relationship was strongest in the parietal cortex (r = -0.72, p = 0.0001). The results suggest that PET imaging with the tracer novel GDP, can provide quantitative information on amyloid deposits in living subjects.
Received: September 9, 2003; Revised: November 4, 2003, accepted: November 18, 2003

Inhibitors and dismantlers of fibrillogenesis:
http://www.upstate.com/browse/pgl.q.filt ...


http://www.freepatentsonline.com/2003013 ...

Methods and compositions are provided that inhibit fibril formation and / or cause disassembly of preformed fibrils. These compositions include short peptides. aŸ-son with two faces: one that can bind to. beta-amyloid by hydrogen bonds, and that blocks the spread of the hydrogen bond necessary to form fibrils. Thus, short fibrillar protein congeners containing N-methyl amino acids or esters are expected to inhibit fibril formation and disassembly of fibrils pre-existing or pre-formed. Addressing specific aspects. Beta-amyloid fibrils, prion fibrils mediation of protein fibrils Huntington.