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Tag: "differential" at biology news

Researchers develop rapid diagnostic tool for pathogen identification

...en at a time, thereby reducing the time needed for differential diagnosis. “We focused first on respiratory diseases because differential diagnosis is a common clinical problem with implications for outbreak control and individual case ma...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...n how the observed gene activity might produce the differential responses to therapy—for example, a poor response may stem from downstream signaling events rather than from problems with drug metabolism. But the authors caution that the mechanisms connecting these genetic signatures to specific outcomes—and the m...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...ed the first reproducible single molecule negative differential resistor ?and in the process has developed a groun...ve been trying to detect for a long time: negative differential resistance in a single molecule attached to electrodes. The specifically designed molecule, a hepta...

15 generations of untrained jocks, couch potatoes show big physiological adaptations

... mechanisms that prompt the initial signal for the differential abilities to run on a treadmill without training, as well as the mechanisms responsible for the "natural" improvements in muscular, cardiovascular and pulmonary oxygen delivery. Further in the future the physiologists hope that identifying these gen...

Divergent life history shapes gene expression in brains of salmon

...t roughly 15 percent of Atlantic salmon genes show differential expression in males who migrate from their freshwater birthplaces to mature in oceans versus those who do not leave the freshwater environment to mature. The researchers, at Harvard University, the University of Massachusetts and the US Geological S...

A new molecule discovered in the battle between plants and disease

...idopsis with tissue-specific paralogs that exhibit differential expression profiles. Orthologs of the proAtPep1 gene have been identified in important crop species including canola, soybean, potato, tomato, rice and poplar. ...

Nose odors and mouth odors: The brain distinguishes

...ferral induced by retronasal stimulation creates a differential reward context for food but not for non-food odors...etermine whether other food odors produce the same differential brain activations," they wrote. However, the researchers found that the two different chemicals but...

Fitting in: Newly evolved genes adopt a variety of strategies to remain in the gene pool

...on-overlapping function, (3) regulation, where the differential regulation of duplicates fine-tunes pathway usage, and (4) gene dosage, where the increased expression provided by the duplicate gene copy augments production of the corresponding protein. Their results, which appear in the October issue of the jo...

Infants can organise visual information at just four months

...rran. "So these differences can't be indicative of differential brain development, or predictive of later abilities." Some of the research was designed to test whether infants are able to organise visual stimuli into groups based on similar attributes: brightness, shape, and proximity. To take part in the visual...

Sexual reproduction delays aging in a mammalian species

... this species offers the rare opportunity to study differential aging rates among individuals possessing the same genes and experiencing the same environmental conditions, apparently differing only in the aspect of pair-bonding and engaging in sexual activity. ...

Study in Science holds promise for a new approach to drug therapy

...on the market that could be made more effective by differential targeting." ...

Brain differences could explain why males and females experience pain relief differently

...inding could eventually lead to the development of differential treatments for pain in men versus women. A team led by Dr. Anne Murphy of the Georgia State Department of Biology and the CBN showed that male and female rodents are anatomically different in the area of the brain called the periaqueductal gray (P...

Avian influenza virus in mammals spreads beyond the site of infection to other organ systems

... "H5N1 virus infection needs to be included in the differential diagnosis of a broader range of clinical presentations than is currently done." In addition better understanding of the mechanisms of spread, including possible fecal-oral route in humans, "may limit the risk of H5N1 virus developing into a pandemic...

Predicting chemotherapy outcome

... validated by RT-PCR analysis, which confirmed the differential expression of 22 genes selected from the list. The findings were also confirmed by RT-PCR analysis of colon and liver tumour samples collected from two additional patients. The authors were able to integrate their findings into global and interconn...

Face perception is modulated by sexual orientation

... sexual partners. Thus, it is reasonable to assume differential patterns of activation in the hetero- and homosexu...al cortex, where facial identity is processed, but differential responses in the amygdala and the reward circuitry, where a "value" is assigned to faces. The resear...

Non-coding RNAs help silence the mammalian transcription

...mprinted gene cluster in mice. Imprinting, or the differential expression of a gene based upon which parent it has been inherited from, is integral to normal growth and development. Two human disorders, Prader-Willi and Angelman syndromes, result from the deletion of the identical portion of chromosome 15. Impri...

New technology used to construct the first map of structural variation in the human genome

...mong individuals and ethnic populations, including differential responses to drugs and environmental stimuli. Mechanisms underlying the formation of CNVs also provide insight into evolutionary processes and human origins. Using microarray technology, scientists can scan for CNVs across the genome in a single ...

'GreeneChip' -- New diagnostic tool that rapidly and accurately identifies multiple pathogens

...neChip is the first tool to provide comprehensive, differential diagnosis of infectious diseases, including those caused by viruses, bacteria, fungi, or parasites. In addition, it is the first tool that can be used on a wide variety of samples, including tissue, blood, urine, and stool, allowing for the rapid id...

Origin of inherited pain disorder pinpointed

...hannel] in human inflammatory pain and explain the differential drug sensitivity of PEPD and PE." ...

Vanishing beetle horns have surprise function

...imorphism of some Onthophagus beetles was borne of differential growth; flamboyantly horned male beetles grow them, hornless females simply can't. But the American Naturalist report shows that even within sexually dimorphic horned beetle species, both sexes initially form the horns, even if one or both sexes reab...

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(Date:7/10/2014)... 10, 2014) Consuming a whole fresh avocado with ... enhanced provitamin A carotenoid (alpha- and beta-carotene) absorption and ... vitamin A, according to new research (1) published ... , Vitamin A is involved in reproductive health ... and vision; and has antioxidant properties. Provitamin A carotenoids, ...
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(Date:7/10/2014)... at Rutgers University-Newark says the human brain operates much ... finding that could provide a better understanding of schizophrenia, ... afflict an estimated 13.6 million Americans. , In newly ... Cole, an assistant professor at the Center for Molecular ... of a person at rest is basically the same ...
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