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Tag: "detect" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...on. The Carnegie Mellon scientists used X-rays to detect the effect of FP-23 on lipid bilayers that mimic cell membranes. Lipid bilayers form different phases that change with temperature, but the “fluid” phase is the most biologically relevant. Using X-ray diffuse scattering, the team quantified structura...

FDA sees nanotech challenges in every product category it regulates

...ovel products before they enter the market, and to detect and move swiftly to correct any problems that may arise. Given the agency’s insufficient resources—which for two decades have not kept pace with inflation—making sure that FDA has the capacity to safely manage nanotechnology must be the shared respon...

Research identifies protein that signals flowering in squash plants

...ed from these flowering C. maxima stocks failed to detect the presence of FT mRNA, but revealed the presence of FT protein in the translocation stream. This research provides some of the most solid evidence to date that FT protein acts as a florigenic signal. ...

Blood test may help signal tumor's remission, return in throat cancer patients

...evelopment of a blood test that enables doctors to detect the recurrence of throat cancer early on, when there is still time to pursue a second line of treatment, such as surgery or drug therapy. “Cancers of the head and neck are insidious because surgical removal of the tumor can severely impair a person’...

Pregnant mom's exposure to flu vaccine kick-starts fetal immune system

... remained controversial because of an inability to detect antigen-specific T cells in cord blood. Recently, a newly developed technique known as MHC tetramer staining has facilitated the detection of antigen-specific T cells. In the June 1 issue of the Journal of Clinical Investigation, a team of researche...

Dual-imaging technique useful before -- and during -- brain surgery

... be that functional MRI is not sensitive enough to detect it,” says Leach....

U-M researchers discover gene switched off in cancer can be turned on

...treatment. “This is a targetable target. We can detect it, but we need to find a better way to turn it back on. No drugs are designed to deal with a gene that’s turned off. But it’s a straightforward extension of current therapies that target genes that are turned on,” says lead study author David Reisma...

Small, self-controlled planes combine plant pathology and engineering

...oped autonomous unmanned aerial vehicles (UAVs) to detect airborne pathogens above agricultural fields. David Schmale, assistant professor of plant pathology, physiology, and weed science in the College of Agriculture and Life Sciences, has not only linked agriculture and engineering with his interdiscip...

Could fungal collection hold the key to new life-saving drugs?

...rug discovery. They have developed test systems to detect biological activity in samples of natural products that could lead to new medicinal products. Previous work at SIDR found activities from plant extracts against diabetes, obesity and psoriasis. Professor Alan Harvey, Director of SIDR said: “We ...

454 sequencing identifies HIV drug resistance at early stage

...r treatments. The ability to use 454 Sequencing to detect rare viral mutations is a crucial research tool to better understand the early stages of HIV drug resistance.” It is estimated that 22 million people have died from AIDS and over 42 million people are living with HIV/AIDS worldwide. In the U.S. al...

CU study reveals why starling females cheat

...additional help. As yet, it is unknown how females detect the genetic similarities between themselves and their mates, though other species of birds appear to adopt similar mating strategies. "This is the first study to show that individuals from the same population mate with extra-pair males and gain bo...

Detecting cold, feeling pain: Study reveals why menthol feels fresh

...iated. "We want to know," Julius says, "how do you detect these stimuli to begin with" How do your sensory nerve endings do this to begin with" And what are the biochemical and biophysical mechanisms that account for this"" All three receptors the Julius lab has discovered are members of the TRP family o...

Resistant HIV quickly hides in infants' cells

...fordable techniques also are necessary to reliably detect resistant HIV in less affluent areas of the world. SUGGESTED "FAST FACTS": Five of 21 HIV-positive infants in this study were infected with drug-resistant HIV transmitted from their mothers. These drug-resistant strains in quickly too...

Catching cancer's spread by watching hemoglobin

..., the imaging technique can potentially be used to detect the spread of cancer, since angiogenesis—the growt...els. Moving beyond mere imaging, the technique can detect the difference between oxygen-carrying hemoglobin (oxyhemoglobin) and oxygen-lacking hemoglobin (deo...

How the brain's backup system compensates for stroke

...th functional magnetic resonance imaging (fMRI) to detect changes in brain activity. This brain-scanning technique uses harmless radio waves and magnetic fields to measure blood flow in brain regions, which reflects brain activity. The researchers found that the magnetic pulses to the left PMd briefly di...

Simple home spit test to spot deadly pre-eclampsia

A simple spit test designed to detect pre-eclampsia in the early stages is being trialed in a UK hospital, reports Cath O'Driscoll in Chemistry & Industry, the magazine of the SCI. The test, which is designed to be used at home, will allow mums-to-be to check for themselves whether t...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...s to complete. "We're looking for approaches to detect anthrax earlier in the blood," said Russell During, Ph.D., a postdoctoral fellow at UF's College of Medicine. "We're trying to develop a test that would allow detection within two or three hours of the bugs entering the blood and secreting toxins." ...

New bacteria test could improve quality of fruit and vegetable juice

...ion will be the best way to quickly and accurately detect and identify the bacteria," said Lin, who worked with researchers from Washington State University and Hashemite University in Jordan, to develop the technique. "If processors find the bacteria, they can go back quickly and find the affected products...

WHO data confirms low level of resistance to Tamiflu

...e inhibition assay (IC50 or sequence analysis) to detect mutations associated with drug-resistance. Results were as follows: Influenza Season in Japan No of Influenza A isolates tested Resistance No of Influenza B isolates tested Resistance 2003/2004 1180 3 (0.3%) 171 0 2004/2005 618 0 252 ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...of Oceanography listen to muscle noise in order to detect muscle stiffness, which in turn can provide inform...consists of sets of sonar dishes that transmit and detect sound waves. Signal-processing algorithms provide automated detection, tracking, and classification...

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