Isotopic Variation Current Events | Isotopic Variation News | 7
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Common variation in gene linked to structural changes in the brain
An international group of researchers is the first to show that common variations in a gene - previously shown to be associated with Retts Syndrome, autism, and mental retardation - are associated with differences in brain structure in both healthy individuals and patients with neurological and psychiatric disorders. view more (2009-08-18)
Study suggests genetic connection between short stature and arthritis
The new study confirms observations by health professionals of a connection between decreased height and increased risk of osteoarthritis, the most common form of arthritis. Researchers speculate that both extremes of height may be associated with osteoarthritis for different reasons. view more (2008-01-14)
Iron isotopes as a tool in oceanography
New research involving scientists from the National Oceanography Centre, Southampton (NOCS) highlights the potential utility of iron isotopes for addressing important questions in ocean science. view more (2009-07-31)
Right warfarin dose determined by 3 genes
Researchers at Uppsala University, together with colleagues at the Karolinska Institute and the Sanger Institute, have now found all the genes the determine the dosage of the blood-thinning drug warfarin. The findings are published in the scientific journal PLoS Genetics. view more (2009-03-20)
Critical turning point can trigger abrupt climate change
Ice ages are the greatest natural climate changes in recent geological times. Their rise and fall are caused by slight changes in the Earth's orbit around the Sun due to the influence of the other planets. view more (2009-04-21)
Estimation of isolation times in the Drosophila simulans complex
The Drosophila simulans species complex continues to serve as an important model system for the study of new species formation. The complex is comprised of the cosmopolitan species, D. simulans, and two island endemics, D. mauritiana and D. sechellia. view more (2008-06-26)
St. Jude shows gene test not needed if cancer drug given in low doses
Investigators at St. Jude Children's Research Hospital have shown that when the cancer drug irinotecan is given in low doses for multiple days, it eliminates the need to delay treatment to perform costly genetic testing that determines if the patient is at risk for serious treatment side effects, such as neutropenia. view more (2007-06-20)
Foxes get frisky in the far north
Bees do it, chimps do it- Now it seems Arctic foxes do it, too. New research looking at the DNA fingerprints of canids in the Far North has revealed that foxes once thought to be monogamous are in fact quite frisky. view more (2007-07-18)
New findings on immune system in amphibians
Krakow/Halle. Major Histocompatibility Complex (MHC) genes produce proteins that are crucial in fighting pathogen assault. Researchers from the Jagiellonian University in Krakow and from the Helmholtz Centre for Environmental Research (UFZ) characterized genetic variation and detected more than one MHC class II locus in a tailed amphibian. view more (2008-06-20)
Fetal heart rate yields clues to children's later development
Variations in heart rate patterns provide information on how the nervous system functions in adults and children. Obstetricians have long considered heart rate patterns to be important indicators of fetal well-being during the prenatal period as well as in labor and delivery. view more (2007-11-15)
New technology used to construct the first map of structural variation in the human genome
Beyond the simple stream of one-letter characters in the human genome sequence lies a complex, higher-order code. In order to decipher this level of architecture, scientists have developed powerful new experimental and algorithmic methods to detect copy number variants (CNVs)-defined as large deletions and duplications of DNA segments. view more (2006-11-27)
McGill researchers find oldest rocks on Earth
McGill University researchers have discovered the oldest rocks on Earth - a discovery which sheds more light on our planet's mysterious beginnings. view more (2008-09-26)
Cancer researchers seek safe reduction of radiotherapy
University of Manchester scientists will discuss their research aimed at reducing the side effects of radiotherapy without decreasing its effectiveness at the National Cancer Research Institute conference in Birmingham. view more (2007-10-03)
Gene variation affects tamoxifen's benefit for breast cancer
One of the most commonly prescribed drugs for breast cancer, tamoxifen, may not be as effective for women who inherit a common genetic variation, according to researchers at the University of Michigan and the Mayo Clinic. view more (2005-12-19)
Study helps preserve arctic whale, Eskimo subsistence hunt
Research on one of the oldest-living mammals - the bowhead whale - has helped preserve a primary food source for Eskimos in the far reaches of Alaska, and also may provide a useful tool for studying genetic variation in other migratory animals. view more (2007-06-13)
Researchers identify genes associated with onset age of Parkinson's disease
Researchers from Boston University School of Medicine (BUSM) have identified genes which may influence the onset age of Parkinson's Disease (PD). view more (2009-10-08)
Jumping genes, gene loss and genome dark matter
In research published today by Nature, an international team describes the finest map of changes to the structure of human genomes and a resource they have developed for researchers worldwide to look at the role of these changes in human disease. view more (2009-10-08)
Researchers shed light on genetic factors behind UK's biggest killer
Researchers investigating the biochemical characteristics behind several everyday diseases have discovered a new chromosomal region to be strongly associated with the bad cholesterol, low density lipoprotein, (LDL). view more (2008-01-11)
Lighting the Way: Measuring Surface Tension Just Got Easier
Inventors at Oxford University have developed a new method to indirectly measure the surface tension of liquid by tracking reflected light intensity to assess the surface configuration. The procedure is reliable, repeatable, quick to set-up and use, contact-less and non-destructive. Surface tension measurement is an important tool in the... view more... (2003-09-05)
Study a step toward disease-resistant crops, sustainability
A five-year study that could help increase disease resistance, stress tolerance and plant yields is under way at Purdue University. view more (2008-11-13)
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