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Tag: "markers" at biology news

New DNA 'fingerprinting' technique separates hemp from marijuana

...cle. And other researchers have found that genetic markers known as "short tandem repeats," which are used to...ymorphism) technique generated hundreds of genetic markers that together established separate identities for each of the four cultivars. "We think this techni...

New compound stops brain cell degeneration in Alzheimer's disease

...cits. The compound also restored normal levels of markers of synaptic dysfunction in the hippocampus, the area of the brain that helps regulate memory and is gradually destroyed in neurodegenerative diseases such as Alzheimer's. Treatment with the compound also attenuated Alzheimer's-like behavioral deficit...

Virginia Tech helping to develop higher quality, disease-resistant wheat varieties

...ucted wherein chromosome specific DNA sequences or markers have been used to identify genes controlling trait...ted project will enable us to demonstrate that DNA markers associated with such traits can be used on a routine basis to develop superior wheat varieties," sai...

Animal brains 'hard-wired' to recognize predator's foot movements, Queen's study suggests

...three-dimensional trajectories of small reflective markers attached to the central joints of a person's body. When the subject moves, these seemingly unstructured white marker dots become organized into meaningful images, from which observers can determine the gender, body build, emotional state, and other a...

Predicting chemotherapy outcome

...ce to complement clinical, biochemical and genetic markers for better treatment of patients with colorectal cancer. A research group led by Sandrine Imbeaud from the CNRS and Pierre and Marie Curie University, Villejuif, France, used microarrays to analyse the gene-expression patterns of samples from colon ...

New test to detect rare proteins in blood

...es), and will be developing tests for other cancer markers including lung cancer and colon cancer. All protei...is, in turn, will facilitate the detection of rare markers and not-so-rare targets from much smaller sample volumes, as well as aid in monitoring marker levels...

Measuring artery repair cells could become new heart disease test

... measure, such as cholesterol, lipids and some new markers like c-reactive protein," Povsic continued. "We're learning that atherosclerosis is a balancing act between damage and repair, and now we may have a test that gives us insight into the repair portion of the equation." "If the results of this study a...

Relationship of brain and skull more than just packaging

...ccurately found again and again. Locating reliable markers was easier on the rigid skull than on the brain. Co-author of the paper, Kristina Aldridge, former postdoctoral researcher at Penn State and now at Washington University, looked at the reproducibility of standard anatomical features on the skull and ...

UF scientists trace origin of shark's electric sense

...ar tests, scientists found two independent genetic markers of neural crest cells in the animal's electricity-.... In the current research, scientists used genetic markers to trace neural crest cells. "Dye labeling would be interesting and further test the idea that elec...

World Trade Center identifications pushed forensic DNA technology

...m repeats ?in forensics work. STRs are biological markers in nuclear DNA that are inherited from both parent...x System ?CODIS ?used by the FBI, uses 13 of these markers for identification purposes. Shaler's group used up to 16 markers. If sufficient markers matched k...

Liquid crystals show promise in controlling embryonic stem cells

...cular markers. Antibodies are placed against these markers to determine if they bind to the cell. That system, while more accurate, does not provide real time data and cells often have to be killed in order to analyze the markers. "This newly devised cell culture system enables a new paradigm in stem cell r...

History of human cannibalism eats away at researchers

...ions for researchers using a specific class of DNA markers called SNPs (single nucleotide polymorphisms) to examine genetic associations with diseases or to evaluate historical patterns of human migration. The prion protein gene ( PRNP ) encodes a protein that can abnormally fold and amass in brain tissues ...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...before and after every treatment. The four protein markers will then be validated for disease stage, primary ...s, as well as survival, Nielsen said. The protein markers included in the test - TIMP-1, PAI-1, MASP-2, and CRP - are related to tissue remodeling, angiogenes...

AIDS-related cognitive impairment exists in two separate forms

...before and after every treatment. The four protein markers will then be validated for disease stage, primary ...s, as well as survival, Nielsen said. The protein markers included in the test - TIMP-1, PAI-1, MASP-2, and CRP - are related to tissue remodeling, angiogenes...

How nice, brown rice: Study shows rice bran lowers blood pressure in rats

...he picture, along with a host of other biochemical markers that track blood glucose (implicated in diabetes), lipid profile, kidney function and the harmful effects of free radicals. For example, high levels of a marker called 8-OHdG indicate biological stress and genetic damage due to oxygen-based free rad...

Thinner and younger

... six months of calorie restriction reduces two key markers of aging: fasting insulin levels and body temperat...- that calorie restriction does change some of the markers we associate with aging." Holloszy and Fontana are getting ready to launch a second phase of the C...

Predicting successful outcomes in living-donor liver transplants

...ation capacity (GEC), and lidocaine elimination as markers for the quality of liver regeneration in 22 donors and their recipients in the first 3 months following LDLT. They found that ICG elimination and GEC remained significantly altered in donors and improved significantly in recipients during that period...

Biomarkers may hone anti-aging therapies

...y than young cells requires that we have molecular markers that we can track," Sligh said. "It won't be long ...if the mitochondrial DNA mutations we've found are markers of aging in other tissues or if they are specific to tissues exposed to ultraviolet light." Either ...

Study finds how organs monitor themselves during early development

...able to test many genes, many conditions, and find markers of those conditions so the results would be visible under the microscope every step of the way. Over several years, Dr. Gilboa developed both the methods and know-how to explore what she calls "a black hole": the process that transforms an embryonic ...

UF scientists discover evolutionary origin of fins, limbs

...pment of human limbs. They also used molecular markers for different cell types to determine which cells give rise to the median fins, finding that they arise from the same cells that form the vertebrae. These same genes dictate the emergence of symmetrical pairs of fins on the animal sides, showing a sh...

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