Genetics News and Research

Latest Genetics News and Research

Intellectual disability may have genetic origin, but is not hereditary

Mutations in a group of genes associated with brain activity frequently cause intellectual disability, according to a study led by scientists affiliated with the University of Montreal and the research centre at the Centre hospitalier universitaire Sainte-Justine. Intellectual disability is a severe handicap that affects between one and two percent of children worldwide. It can often be attributed to genetic causes, but the specific genes involved were mostly unknown.

18 Apr 2011

Parents may chose predictive genetic tests for their children

Parents offered genetic testing to predict their risks of common, adult-onset health conditions say they would also test their children. That is the finding of a new study published in the May issue of Pediatrics.

18 Apr 2011

Drug resistant bug plaguing the meat industry: Study

It has been found that nearly half of the meat and poultry (47 percent) sold in U.S. grocery stores is contaminated with Staphylococcus aureus (“Staph”), a bacteria linked to a wide range of human diseases, and this bacteria is resistant to at least three classes of antibiotics in more than half (52 percent) of contaminated samples. This comes from a nationwide study by the Translational Genomics Research Institute (TGen) published this week in the journal Clinical Infectious Diseases.

17 Apr 2011

Analysis calls for experimental evidence to determine best way to disclose information to patients

Giving patients data about the risks and benefits of a medical intervention is not always helpful and may even lead them to irrational decisions, according to an article in the Hastings Center Report. That finding calls into question whether it is essential to disclose quantitative data to patients to help them make informed decisions.

16 Apr 2011

NIH researchers survey landscape of melanoma genome

A team led by researchers at the National Institutes of Health is the first to systematically survey the landscape of the melanoma genome, the DNA code of the deadliest form of skin cancer. The researchers have made surprising new discoveries using whole-exome sequencing, an approach that decodes the 1-2 percent of the genome that contains protein-coding genes.

16 Apr 2011

Astrocytes regulate circadian system that controls normal sleep patterns

The circadian system that controls normal sleep patterns is regulated by a group of glial brain cells called astrocytes, according to a study published online on April 14th in Current Biology, a Cell Press publication. Neuroscientists from Tufts University School of Medicine found that disruption of astrocyte function in fruit flies ( Drosophila) led to altered daily rhythms, an indication that these star-shaped glial cells contribute to the control of circadian behavior.

15 Apr 2011

Study finds 47% of meat and poultry samples contaminated with S. aureus

Drug-resistant strains of Staphylococcus aureus, a bacteria linked to a wide range of human diseases, are present in meat and poultry from U.S. grocery stores at unexpectedly high rates, according to a nationwide study by the Translational Genomics Research Institute.

15 Apr 2011

Researchers develop Short-CGH method for preimplantation genetic screening

A Short Comparative Genomic Hybridisation method has been developed to carry out preimplantation genetic screening by analysing all chromosomes and transferring selected embryos to the recipient uterus in the same in vitro fertilisation cycle. This eliminates the need to freeze them.

15 Apr 2011

African genital herpes strains are more infectious than the U.S. virus

Strains of genital herpes in Africa are far more virulent than those in the United States, researchers at Harvard Medical School report, a striking insight into a common disease with important implications for preventing HIV transmission in a region staggered by the HIV/AIDS epidemic.

15 Apr 2011

Researchers temporarily turn off essential gene using RNAi technology

One way of discovering a gene's function is to switch it off and observe how the loss of its activity affects an organism. If a gene is essential for survival, however, then switching it off permanently will kill the organism before the gene's function can be determined. Researchers at Cold Spring Harbor Laboratory (CSHL) have overcome this problem by using RNA interference (RNAi) technology to temporarily turn off any essential gene in adult mice and then turn it back on before the change kills the animals.

15 Apr 2011

NIST's new reference can aid in Huntington's disease diagnosis

A new Standard Reference Material from the National Institute of Standards and Technology will help clinical genetics labs accurately diagnose Huntington's disease, an inherited degenerative brain disorder that usually begins between ages 35 and 50 and progressively leads to physical impairment, dementia and death.

15 Apr 2011

Trial of non-invasive prenatal test to determine Down syndrome successful

At the moment, the only reliable way of diagnosing chromosomal irregularities during pregnancy is to use invasive prenatal methods. This causes miscarriage in about one per cent of these risky surgical procedures.

14 Apr 2011

NIAID finding to accelerate Chlamydia infection study

WHAT: In a new study from the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, scientists describe successfully mutating specific genes of Chlamydia bacteria, which cause the most common sexually transmitted infection in the United States as well as a type of blindness common in developing nations.

12 Apr 2011

Study provides new insights into tuberculosis behavior

Patience may be a virtue in a person, but in an infectious disease, it is insidious. Witness tuberculosis, which can lie dormant in a human host for decades before bursting forth into infection. TB's stealthy nature has made it difficult to decipher how it spreads, seriously hampering efforts to control it. The World Health Organization estimates that a third of the people on Earth are infected.

12 Apr 2011

Rockefeller University professor earns recognition in developmental psychobiology

Weill Cornell Medical College and the Columbia University College of Physicians and Surgeons have announced that The Mortimer D. Sackler, M.D. Prize for Distinguished Achievement in Developmental Psychobiology has been awarded to The Rockefeller University's Dr. Fernando Nottebohm for his seminal work in songbirds that has led to the discovery of neuronal replacement.

12 Apr 2011

Insight into neurodegenerative diseases

For years, researchers in genome stability have observed that several neurodegenerative diseases-including Huntington's disease-are associated with cell-killing proteins that are created during expansion of a CAG/CTG trinucleotide repeat.

12 Apr 2011

Study to discover mysterious biological cause of Gulf War Illness

For nearly two decades following the 1991 Gulf War, doctors noticed a trend in many of veterans of that conflict: an unexplainable cluster of symptoms including but not limited to chronic fatigue, memory loss, and depression. It wasn't until 2008 that a scientific panel from the U.S. Department of Veterans Affairs concluded that a third of American troops who served in the Gulf War were suffering from combinations of these symptoms, now recognized collectively as Gulf War Illness (GWI).

12 Apr 2011

Increased levels of plasma renin activity protein may predict major cardiovascular event in high-risk patients

Increased levels of a protein that helps regulate the body's blood pressure may also predict a major cardiovascular event in high-risk patients, according to a study led by St. Michael's Hospital's cardiovascular surgeon Subodh Verma. Measuring the amount of the protein, known as plasma renin activity (PRA), in the blood stream may give doctors another tool to assess a patient's risk and help prevent a heart attack or stroke.

8 Apr 2011

DNA forensic test frees prisoner with life sentence after having served 18 years

In a landmark case, a prisoner with a life sentence was freed after serving 18 years in a Florida prison, based on DNA findings presented by DDC (DNA Diagnostics Center). DNA analysis and testimony provided by Dr. Julie Heinig, DDC's DNA Forensics Assistant Laboratory Director, is credited with leading to the exoneration of Derrick Williams earlier this week. DDC is the largest provider of private DNA paternity and other DNA testing in the United States and worldwide.

8 Apr 2011

ASBMB to honor 11 scientists with annual awards for biomedical research

The winners of the American Society for Biochemistry and Molecular Biology annual awards will give lectures at the Experimental Biology 2011 conference April 9-13 at the Walter E. Washington Convention Center in Washington, D.C.

8 Apr 2011