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Tag: "detected" at biology news

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

...ition, because IL-6, IL-8, VEGF, and HGF have been detected in the blood of patients with breast, cervical, ovarian, and other cancers, they suggest that this technique may have broader application in the monitoring of other forms of cancer. Further studies would need to be performed on patients with these ty...

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

...rs for Disease Control and Prevention. The authors detected anti-Fluzone antibodies in approximately 40% of cord blood specimens examined. These results and further data reported in the study establish that B and T cell responses to antigens occur in utero following maternal vaccination against influenza, sup...

CSIRO scientists join fight to save 'Tassie devil'

...rmine if any chemical or structural changes can be detected that can be correlated with the disease. “We are hoping we can work together to develop a pre-clinical diagnostic test based on recent developments in the diagnosis of human breast cancer,” Dr Church said. “Such a test would enable the screening...

Envisat captures first image of Sargassum from space

Sargassum seaweed has been detected from space for the first time using optical radian...g ships in its dense floating vegetation, has been detected from space for the first time thanks to an instrument aboard ESA’s environmental satellite, Envisat....

454 sequencing identifies HIV drug resistance at early stage

...ic. The additional low abundant resistant variants detected by Ultra Deep sequencing were found to be extremely important as it enabled the prediction of early antiretroviral treatment failure with strong statistical significance. “Current genotypic resistance technology available to clinicians is limited to...

In nature, proteins sweep up nanoparticles

... the team analyzed the zinc sulfide aggregates and detected the characteristic signal of proteins. Next, to further zero in on this intriguing signal, they examined the sample using an extremely high-spatial-resolution imaging tool called secondary ion probe spectrometry, which is located at the Department...

Potato wart eyed as risk to potato production

...serious disease of cultivated potato that has been detected worldwide. Potato wart is caused by the fungus Synchytrium endobioticum, which is considered to be the most important worldwide quarantine plant pathogen of potato. While not harmful to humans, the disease causes unsightly growths that initially appe...

Reconstructing the biology of extinct species: A new approach

...lve features approximately 1/100 the size of those detected by medical CT scanners. In addition, experienced field workers used personal knowledge or film of animals in the wild to classify species into one of six locomotor categories ranging from very slow and deliberate to fast and agile. The scientists t...

Catching cancer's spread by watching hemoglobin

...bsorption," and then gives off signals that can be detected to build up an image. One "pump" laser boosts (excites) hemoglobin molecules to a higher energy state. The other "probe" laser monitors the hemoglobin after the excitation. Sometimes the pump laser is off and there is no two-photon absorption. By sub...

Protein enables discovery of quantum effect in photosynthesis

... happens inside a bacteriochlorophyll complex, and detected a 'quantum beating." The effect, described in the April 12, 2007 issue of Nature, occurs when light-induced excitations in the complex meet and interfere constructively ­ much like the interactions that occur between the ripples formed by throwing...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

...H gene is on chromosome 13. Several other genes detected in the study produce proteins involved in this and other biochemical pathways thought to play a role in bipolar disorder. Understanding the effects that variations of these genes have on brain-cell function could lead to explanations of how they con...

Study offers clues to 'Broken Heart Syndrome'

...r artery of the heart, then dissolves before being detected during coronary angiography. The most common symptom of broken heart syndrome was chest pain, in 70 percent of patients, followed by shortness of breath in 33 percent. All patients had ECG changes suggestive of an acute coronary syndrome, a term t...

DNA-damage test could aid drug development

...sors generate red blood cells containing an easily detected "micronucleus" consisting of fragments of nuclear DNA. Unlike the current procedure, which injects the compound into a live mouse, the new assay is a cell-culture system that could allow hundreds or thousands of tests to be performed from the bone ma...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...stimation of the distances at which threats can be detected (2pEA6; contact Alexander Sutin, asutin@stevens....ur seal rookery in the Bering Sea in Alaska. They detected killer whale vocalizations on 19 of 20 days during last summer. Most of the vocalizations occurred ...

Hives ferment a yeasty brew, attract beetle pest

... detect some alarm pheromones at levels below that detected by honeybees. The beetles associate the alarm chemicals with a good food source and head for the hive. In Africa, where the small hive beetle is a minor honeybee pest, bees quickly isolate an invading beetle, but domesticated European honeybees are ...

Cornell lab confirms deadly fish virus spreading to new species

...ry popular food fish in the Deep South. "We have detected VHSV in channel catfish in our surveillance efforts," said Bowser. "The ability of the virus to go beyond a carrier state and cause disease in this important aquaculture species is a major research question we plan to investigate this year."...

Genetic fingerprints identify brain tumors' origins

...called an ependymoma. In addition, scientists also detected these distinct patterns of expression in normal glia and stem cells from these brain locations, suggesting that genetic fingerprints can be used to identify the potential origins of brain tumors. "There's been a movement in recent years to link no...

Gene tests and brain imaging reveal early dementia

...hows, however, that approaching Alzheimer's can be detected several years before the symptoms manifest themselves. Dementia involves a serious deterioration of mental function caused by some kind of dementia disease of the brain, of which Alzheimer's is the most common. Although there is currently no cure f...

NIAID DNA vaccine for H5N1 avian influenza enters human trial

... have drifted genetically from the initial strains detected in Southeast Asia. With this study, the investigators hope to learn whether new technologies, such as DNA vaccines, can provide protection against such viruses. "This vaccine is aimed at newer strains of the H5N1 virus that currently pose a threat...

A new study of living cells could revolutionize the way we test drugs

...an electrical current that could, in principle, be detected with sensitive enough equipment. The recognition o...ed for, the electrical signal was the smallest yet detected from a living cell, around 100 times smaller than anything previously detected. It added up to an el...

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