Tag: "distinguish" at biology news

Super-effective 'jumping gene' created

...e in establishing the evolutionary shifts that now distinguish mice from men, and that even now their DNA affects how other genes are used. Both mice and men share jumping genes known as L1 retrotransposons, some of which are "young" and still active, but most of which are "rusting hulks" that account for mor...

Are nanobacteria alive?

...ite shells absorb contaminants. "The problem is to distinguish between material absorbed from the environment and unique sequences from these organisms." Av-Gay too will say nothing about what his studies have revealed. "The story seems to be gearing towards the idea that these are not bacteria, but maybe a new ...

Pancreatic cancer blood test & gene studies show promise

...tients through a slender needle, they were able to distinguish the two conditions. More research is needed, but the technique could lead to new ways of telling pancreatitis from cancer without the need for surgery. All three announcements were made at the Digestive Diseases Week meeting here. "We're definitely ...

Stem cells toward sperm cells and back again

... in the testis because we can detect proteins that distinguish them, and we know exactly where the stem cells are supposed to be," says Matunis. "In fruit flies, we also know the signal that keeps the stem cells in their primitive state, and we can turn it off and on. We don't have any of this information for pe...

Bird's eye views earth's magnetic lines

... to hop in the appropriate migratory direction. To distinguish between the photoreceptor and magnetite mechanisms, European robins orienting to the north during the Spring migration were exposed to low-level radio frequencies predicted to disrupt the energy states of any light-absorbing molecules involved in sen...

Surprising 'ultra-conserved' regions discovered in human genome

... genomes that are often used in genetic testing to distinguish one human from another. They found 20-fold fewer SNPs in the conserved regions than would have occurred if SNPs were randomly sprinkled throughout the genome. Interestingly, the rate of change that has occurred in these regions when compared with o...

Scripps scientists look deep inside sharks and their high-performance swimming system

...at respect." The authors say these characteristics distinguish lamnid sharks and tunas from virtually all other fish and arose independently in each, most likely the result of evolutionary selection for fast and continuous locomotion. Shadwick says in this respect lamnids and tunas are more like each other than ...

Human brain works heavy statistics learning language

...tely, test scores skyrocketed. People were able to distinguish the regularity of certain consonant relationships and use them to properly divide the stream of sounds into words even though the statistics involved were at least as complicated as the earlier test that was universally failed. Even switching the rol...

Setting the gene expression base-line for breast cancer research

.... Microarray analyses have previously been used to distinguish between sub-classes of breast tumors based on the differential expression of many hundreds of genes. For example, one sub-class of tumor was identified as 'basal-like' because the tumors expressed a series of genes thought to be expressed in myoepith...

Kiratisin wins 2004 Dade MicroScan Young Investigator Award

...ns group of streptococci did not always accurately distinguish between different species in this large group of bacteria, many of which cause endocarditis and other serious infections in humans. Moreover, more-sensitive molecular methods for identifying these organisms are not readily available outside of specia...

Salty scans

...dy. But in water-logged kidneys, the image may not distinguish between different functional parts. Now, Prof. Hadassa Degani of the Biological Regulation Department and her lab team have found a way to see into the kidneys using magnetic resonance imaging (MRI) that scans sodium ions rather than water. ...

SAGE-acious prediction of thyroid carcinoma

...thyroid tumor diagnosis require thyroid surgery to distinguish follicular thyroid carcinoma (FTC) from benign follicular thyroid adenoma (FTA). Given the rise in the incidence of thyroid cancer, preoperative classification of FTC versus FTA would greatly improve selection of optimal treatment strategies. In addi...

Genetic screening study at Stanford ID's most aggressive adult leukemia strains

...body of research relying on microarray analysis to distinguish between patients with otherwise similar cancers. The technique has been successful in breast, lung and liver tumors at helping doctors understand the disease and to identify the most appropriate treatments. "This kind of study can benefit patients in...

Biologist's find alters the bacteria family tree

...rees of microbes. He was also the first person to distinguish between the two domains of microbial life Bacteria and Archaea. These Archaea are not related to the Archaan era mentioned previously. Using many genes that are common to all these creatures, Blank was able to construct evolutionary trees with bet...

U of T researchers isolate gene for Crohn's disease

... for this protein malfunction will help physicians distinguish between Crohn's disease and ulcerative colitis, th...gene alteration provides a diagnostic test to help distinguish between the two diseases. Siminovitch says that this information can also be used to diagnose Crohn'...

New IU Bloomington life sciences building gets a name

...itated by the Simons' generosity will dramatically distinguish our work in the life sciences and advance our pursuit of new knowledge," said IU President Adam W. Herbert. The gift is from Melvin and Bren Simon, Herbert and Bui Simon, David E. and Jackie Simon, Deborah J. Simon, and Cynthia Simon Skjodt and Paul...

Study points to a promising new test for myelodysplasia, a blood disorder often leading to leukemia

...early diagnosis. However, it is often difficult to distinguish MDS from readily treatable, nonmalignant forms of bone marrow disease. Thus, the absence of a reliable test to accurately diagnose MDS may preclude appropriate therapy and threaten patient health. Using Fourier transform-infrared (FT-IR) spectroscop...

Profiling prostate cancer

...ethod to determine molecular signatures that could distinguish subgroups of patients with different disease outcomes. The algorithm was developed utilizing an analysis that assessed expression profiles of over 12,000 genes from 100 different tumors. Five highly discriminating gene-expression clusters were assi...

JCI table of contents, 15 March 2004

...ethod to determine molecular signatures that could distinguish subgroups of patients with different disease outcomes. The algorithm was developed utilizing an analysis that assessed expression profiles of over 12,000 genes from 100 different tumors. Five highly discriminating gene-expression clusters were assi...

JCI table of contents, March 1 2004

...angerin are specific markers expressed by LCs that distinguish them from other DCs, however their immunological functions have remained mostly unknown. In the March 1 issue of the Journal of Clinical Investigation, Robert Modlin and colleagues from the University of California, Los Angeles, demonstrate that LCs ...

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