Tag: "clumps" at medical news
Brightening prospects of using fluorescent nanotubes in medical applications
...ap and give it a dose of ultrasound to break apart clumps
of nanotubes and force them to dissolve. The result is a dark liquid that is routinely put into an ultracentrifuge that subjects them to forces a few thousand times that of gravity. Centrifuging separates out a number of gross impurities. Hertels tea...
Brain inflammation may be friend, not foe, for Alzheimer's patients
...sease, protecting the brain and helping get rid of clumps
of material known as plaques that are a hallmark o...ne system. The team expected to see the telltale clumps
of material known as amyloid plaques, made up of the peptide amyloid beta, worsen. Instead, to the t...
Violent sleep disorder linked to a form of dementia
...ins are associated with synapses in the brain, and clumps
of abnormal alpha-synuclein protein are present in some forms of dementia. "The problem does not seem to be present in the synuclein gene itself, but its something that happens to the protein following gene expression. Just what happens to it to caus...
Research could lead to treatment for Alzheimer's disease
...s stages of plaque formation is made up of fibrous clumps
of toxic proteins that cause the devastating symptoms of Alzheimer's disease, said Ghosh, who has a dual appointment in the chemistry and medicinal chemistry and molecular pharmacology departments. "Interdisciplinary research and the tools availabl...
Alzheimer's alarm over anesthetics
...ether. This could be worrying, as the formation of clumps
or "plaques" of these proteins is characteristic of Alzheimer's disease and may contribute to brain cell death. Last week at the annual meeting of the Society for Neuroscience in Atlanta, Georgia, Mandal revealed that the inhaled anaesthetics haloth...
Optics tests for early Alzheimer's diagnosis make significant advances
...si-elastic" light scattering test can detect small clumps
of beta-amyloid particles in the lens. The beta-amyloid proteins collect as aggregates in the lens as small as tens to hundreds of nanometers in size. Small increases in the size or number of these nanometer-scale particles create large effects in li...
MIT nanoparticles may help detect, treat tumors
...ble" or stick together. The resulting nanoparticle clumps
are too big to get back out of the gaps. Further, the clumps
have a stronger magnetic signal than do individual nanoparticles, allowing detection by MRI. "We inj...
Blocking previously unrecognized links between inflammatory systems could make COX-2 inhibitors safe
...d antibodies that specifically bind to COX-2, tiny clumps
formed that consisted of COX-2 enzymes bound to iN...ibodies that bind specifically to iNOS also formed clumps
of COX-2 and iNOS enzymes bound to each other. The Hopkins team also showed that iNOS first binds ...
Collapse of p53 into clumps might be linked to cancer, according to St. Jude
...en's Research Hospital. The mutation that causes clumps
to form is associated only with the pediatric canc...e current finding only suggests a link between p53 clumps
and adrenocortical carcinoma, mutations that disrupt various proteins have broader implications. The...
Stem cells grown in lab mirror normal developmental steps
...ed laboratory-grown dishes of human stem cells, in clumps
called human embryoid bodies, and observed three distinct steps taken by stem cells on their way to becoming blood cells. Without any chemical manipulation or stimulation, the clusters of human stem cells first became colonies of cells that can pr...
A vaccine approach to treating Parkinson's disease
... marked by the presence of Lewy bodies -- abnormal clumps
of alpha-synuclein -- in the brain. Normally, alpha-synuclein proteins support communications between brain cells, or neurons. However, when abnormal proteins clump together in the neurons, a build-up of synuclein can cut off neuron activity, blocki...
Variant prion protein causes infection but no symptoms
...ss toxic than the non-plaque form of prion protein clumps
In either case, more time might be required to pr... as they were in this research? What if only small clumps
are toxic?" If this hypothesis proves correct, Dr. Chesebro says, the ongoing research could eventu...
New research raises questions about buckyballs and the environment
...nd that buckyballs combine into unusual nano-sized clumps
which they refer to as "nano-C 60 " that are about 10 orders of magnitude more soluble in water than the individual carbon molecules. In this new experiment, they exposed nano-C 60 to two types of common soil bacteria and found that the particles ...