Tag: "probes" at medical news
'Virtual colonoscopy' effective in finding most polyps but may miss small ones
... to large polyps as well as traditional colorectal probes
can, but it may miss some smaller yet potentially cancerous growths, according to a new review of studies. The review -- limited to comparing the traditional procedure to use of computer tomography as a method -- also finds that despite seeming advan...
Watching metals melt, nanometer-scale views inside cells
... tediouslabor. A second method, using fluorescent probes
coupled with lightmicroscopes, sometimes saves the cell but can interfere with itsnormal functioning. A new method, reported by Lev Perelman ofHarvard, avoids the forgoing problems by combining the use of tightpinholes to control incoming and collec...
Duke engineers develop new 3-D cardiac imaging probe
...ing therapeutic treatment devices such as ablation probes
that burn off damaged cells that cause an irregula... Pua has done." "Maintaining the size of normal TE probes
was a main factor in the design since 3-D imaging inherently requires significantly more sensors tha...
Researchers demonstrate use of gold nanoparticles for cancer detection
...sorb and scatter light differently, multiple color probes
can be made which may detect many molecules at the same time. What makes this technique so promising, the researchers explained, is that it doesn't require expensive high-powered microscopes or lasers to view the results, as other techniques require....
Pitt receives $9 million to develop research tools that may aid drug discovery
...nique expertise in design and development of novel probes
that use fluorescence and other optical imaging techniques. "As a pilot center in the Molecular Libraries Screening Centers Network, we will be able to exploit and expand our existing strengths for developing and implementing methods for the detectio...
Radiofrequency ablation is effective long-term treatment for kidney tumors
... within the body through a thin needle, similar to probes
used in biopsy procedures. Placement of the probe is guided by CT scan, ultrasound or other imaging techniques. Widely used to treat cardiac arrhythmias, RFA is also being investigated for destruction of small liver tumors and has been used for more ...
Northwestern receives major award for nanotechnology cancer center
...he body. Other projects include developing imaging probes
hundreds of times more sensitive than those currently available and with the ability to report on physiological changes in cells and developing nanoscale cargo bins that can target cancer cells, bind to them and unload chemotherapeutic agents directl...
Duke engineers developing ultrasound devices combining 3-D imaging with therapeutic heating
... up by developing tiny internal ultrasound imaging probes
than can provide physicians better visual guidance...ernal surgery, Smith said. But those previous tiny probes
acquire only two-dimensional images, which still have shortcomings for pinpoint tissue ablation, he ...
McMaster virologist develops avian flu test
...ahony's lab provided the genetic sequences for the probes
and primers to build the test and assisted in establishing key test parameters for the detection of the individual viruses. His lab continues to work with Tm Bioscience to assess performance characteristics of the test using clinical specimens. Tm Bi...
Magnetic probe successfully tracks implanted cells in cancer patients
By using MRI to detect magnetic probes
of tiny iron oxide particles, an international res...iron oxide particles. This new application of the probes
-- already clinically approved for MRI scanning of the liver -- could dramatically improve efforts t...
New sensor to provide early warning of oxygen loss to unborn children
...d Warwickshire NHS Trust they pointed out that the probes
would be of massive benefit to doctors in the deli...rwick Medical School researchers have examined the probes
and say that the use of Professor Dale's probes
to test for hypoxanthine would give doctors in deliv...
Light-based device probes for early cancer signs
... start in the epithelium," Wax said. "Fiber-optic probes
have the potential to test for early evidence of cancer in seconds, providing biopsy-type information without removing tissue. They could also serve as a guide to biopsy, directing physicians to suspicious sites to increase the likelihood that cancer...
Mailman School of Public Health researchers develop diagnostic test for pathogens
...g and detection of genetic polymorphisms. Genetic probes
for pathogens were coupled to markers known as mass codes. After amplification, incorporated mass codes were detected by mass spectroscopy allowing identification of the pathogen. To facilitate rapid differential diagnosis of VHF agents, Briese an...
Powerful new tool for studying brain development
... expression is visible because special tags called probes
bind to messenger RNA (mRNA)--the decoded form of the gene--and release a signal that can be seen using a special microscope. Gene expression refers to the production of mRNA, which becomes the blueprint the cell uses to make the protein coded for by...
St. Jude develops more affordable ALL follow-up test
.... The new assay uses only one test tube with three probes
that can distinguish leukemic cells from normal cells in the bone marrow of children with ALL taken after two weeks of chemotherapy, according to the paper's senior author, Dario Campana, M.D., Ph.D., a member of the St. Jude Hematology-Oncology and ...
Molecular imaging may lead to earlier diagnosis of childhood respiratory virus
...studying bovine and human RSV with molecular-scale probes
called molecular beacons that are engineered oli...elo explained. "So we were able to bind up to nine probes
to that sequence, and that helped us achieve very high sensitivity to the virus. In the human virus,...
Vaccinate or not? Treat or not? Study looks at tricky health decisions
...e of public health for your community? A new study probes
how we make such tricky decisions, and how our decisions might change dramatically if we step back and put ourselves in the shoes of others. The findings may help individuals who face tough health choices, and decision makers who make choices for lar...
Large-scale cross-platform study of research microarrays uncovers high concordance across platforms
...rge-scale initiative in which the sequences of all probes
were known and utilized in such an analysis. The results indicate in the current state of microarrays, there are many available platforms that provide good quality data, or reliability, especially on highly expressed genes, and that between these pla...
Chronic middle ear infections linked to resistant biofilm bacteria
...rphology using generic stains and species-specific probes
for Haemophilus influenzae, Streptococcus pneumoniae and Moraxella catarrhalis by Luanne Hall Stoodley, Ph.D. and her ASRI colleagues. Effusions, when present, were also evaluated for evidence of pathogen specific nucleic acid sequences (indicating p...
Scientists develop new, molecular approach to early cancer detection
...esearchers said. Clinicians using such molecular probes
should be able to "find cancer in a much earlier stage when the tumors are much smaller," enabling doctors to begin treatment earlier, Li said. Richard Zare, a professor and chairman of the Stanford University department of chemistry, said he is "h...