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Tag: "sensitivity" at biology news

Virus-host interactions at sea effect global photosynthesis

...y researchers who want to achieve a high degree of sensitivity and precision in their experiments. ...

B-15A collides with Antarctic ice tongue

...y researchers who want to achieve a high degree of sensitivity and precision in their experiments. ...

Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol

...he CDK2 enzyme strongly correlated with a cancer's sensitivity to Tarceva. That means testing activity of CDK2, ...ncreased activity of CDK1 correlated with a cell's sensitivity to Taxol. The CDK enzyme plays a role in cell division, and researchers believe that it functions i...

Product improves peptide identification for proteomics research

...pectrometers. "The high resolution, scan speed and sensitivity of the LC/MSD Trap XCT Ultra make it a powerful to...nd environmental analysis, which require excellent sensitivity and fast scanning capability." The LC/MSD Trap XCT Ultra, which is based on an advanced multipole i...

Affymetrix Launches New Globin-Reduction Kits and Protocol Developed with PreAnalytiX

...g target preparation significantly increases assay sensitivity on GeneChip arrays. The GeneChip Globin Reduction Protocol links PreAnalytiX' already proven standard for whole blood collection, stabilization and isolation of RNA with Affymetrix' leading product line for microarray-based analysis of whole blood c...

Whole-body MRI Takes Less Than 20 Min To Scan A Patient's Entire Body For Cancer Spread To Bone

...s, the researchers found that whole-body MRI had a sensitivity of 100%, a specificity of 95% and an accuracy of 9...moving table and fast software. It offers a better sensitivity and higher specificity in detecting bone metastasis than other methods,?said Joan C. Vilanova, MD, l...

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

...me from areas with a history of red tides had less sensitivity to the toxins than did clams from an area with no ... from exposed the population showing markedly less sensitivity to the toxins. Tracking these differences down to the genomic level and comparing DNA sequences fro...

Brain Scan Study of Smokers Reveals Signature of Craving

...r suggests the difference may lie in their brains' sensitivity to drug cues. The researchers found that smokers w...avings after deprivation also exhibited heightened sensitivity to smoking-related images compared to those who craved cigarettes less. "These findings are excitin...

Blink, and the brain misses it

...? In the 1980s, scientists discovered that visual sensitivity begins decreasing immediately before a blink, but the brain mechanisms underlying this process have until now remained unclear. As they report this week, Davina Bristow and a team of scientists at University College London led by Dr. Geraint Rees may...

Evolution of taste receptor may have shaped human sensitivity to toxic compounds

...ressed in individual cells, conferred an increased sensitivity toward several harmful compounds found in nature. The work strongly supports a pivotal role for bitter-taste perception in toxin avoidance in humans, an attribute that could have come into particular play during periods of expansion into new environ...

Environmental chemical cocktail may sabotage sperm

...in the body rather than in the laboratory, but the sensitivity of human sperm to these chemicals means that further investigations should be carried out to determine whether such environmental compounds might contribute to a decrease in human fertility. Other scientists have investigated the negative impact of e...

Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'

...r time increased -- indicating a reduction in pain sensitivity that the subjects were not aware of. In other words, thinking they were getting a pain drug actually allowed the participants to tolerate even more pain-inducing concentrated salt water than before. After each scan, the researchers asked the partici...

Fruit fly studies open new window on cancer research

... have found a family of proteins that enhances the sensitivity of a cell to a hormone that can trigger abnormal growth and cancer. Their discovery could lead to a completely new approach to tackling some cancers and the development of new drugs to stop uncontrolled growth in a wide variety of tumour cells. The ...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

... CS maximal activity, improved respiratory control sensitivity during exercise as classically proposed (by J Holloszy and E. Coyle)?We hope that the present observations will stimulate additional research to clarify the precise nature, time course, and significance of the physiological adaptations induced by sho...

New technique rapidly detects illness-causing bacteria

...ves researchers a powerful tool for increasing the sensitivity of the analysis. The method may help researchers and companies that are in the business of tracking food-borne pathogens, allowing technicians to determine a source quickly. It may also help to analyze a throat culture swab, to tell if someone has a...

A novel method to measure circadian cycles

... human circadian cycle: 24.5 hours. Because of the sensitivity of their method, Schibler and colleagues also confirmed that, for both humans and mice, circadian rhythms vary substantially between individuals. This suggests that the genetics of the circadian clock likewise varies between individuals. Unlike an ...

Clear rules needed to govern deep sea bioprospecting: UNU

...deep seabed bioprospecting, combined with a strong sensitivity to countries' freedoms in international areas." "Ethical concerns have been raised with regard to the status of deep seabed genetic resources," says Salvatore Arico of UNESCO, a Visiting Research Fellow at UNU-IAS and a lead author of the report wit...

A Father’s Day Gift: Free DNA Paternity Testing

...deep seabed bioprospecting, combined with a strong sensitivity to countries' freedoms in international areas." "Ethical concerns have been raised with regard to the status of deep seabed genetic resources," says Salvatore Arico of UNESCO, a Visiting Research Fellow at UNU-IAS and a lead author of the report wit...

Weight control protein may yield antiobesity drugs

...SH2-B as an important positive regulator of leptin sensitivity inside cells of the brain region known as the hypo...energy balance and body weight by enhancing leptin sensitivity in animals, Rui said. Mice lacking a functional copy of the SH2-B gene were smaller at birth than n...

Global warming increases oyster sensitivity to pollution

...search has shown that global warming increases the sensitivity of oysters to metal pollution, causing a deadly threat to populations in polluted areas. Dr. Gisela Lannig from the University of North Carolina, USA, will present her work on cadmium poisoning in eastern oysters (Crassostrea virginica) on Monday 11t...

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