Brightsurf Science News & Current Events

December 09, 2012
New stem cell research, transplant strategies show promise to improve outcomes, reduce complications
Studies of stem cell biology and transplant approaches presented today at the 54th Annual Meeting of the American Society of Hematology illustrate how the use of advanced modeling techniques is optimizing stem cells to treat patients with blood disorders, as well as the potential of enhanced treatment strategies to improve the success rate of hematopoietic stem cell transplantation for these patients.

Violent video games: More playing time equals more aggression
A new study provides the first experimental evidence that the negative effects of playing violent video games can accumulate over time.

Steroid hormone receptor prefers working alone to shut off immune system genes
Researchers at Emory University School of Medicine have obtained a detailed molecular picture that shows how glucocorticoid hormones shut off key immune system genes.

Leukemia patients remain in remission more than 2 years after engineered T cell therapy
Nine of 12 leukemia patients who received infusions of their own T cells after the cells had been genetically engineered to attack the patients' tumors responded to the therapy, which was pioneered by scientists in the Perelman School of Medicine at the University of Pennsylvania.

Ant and termite colonies unearth gold
Ant and termite nests show evidence of gold hidden deep underground in new research conducted by CSIRO.

Engineered immune cells produce complete response in child with an aggressive pediatric leukemia
By reprogramming a seven-year-old girl's own immune cells to attack an aggressive form of childhood leukemia, a pediatric oncologist has achieved a complete response in his patient, who faced grim prospects when she relapsed after conventional treatment.

Second-hand smoke increases risk of invasive meningococcal disease in children
The dangers of second-hand smoke on children continue to become ever more apparent.

New drug cuts risk of deadly transplant side effect in half
A new class of drugs reduced the risk of patients contracting a serious and often deadly side effect of lifesaving bone marrow transplant treatments, according to a study from researchers at the University of Michigan Comprehensive Cancer Center.

Hedge funds manipulate stock prices, new research shows
Some hedge funds manipulate stock prices at the end of the month to improve the returns that they report to their investors, a new study suggests.

Pre-clinical data shows Angiocidin effective against leukemia
Angiocident, a novel tumor-inhibiting protein, has been shown in vitro and in vivo effectiveness against acute myeloid leukemia cells in pre-clinical experiments.

What it is to be a queen bee?
Queen sweat bees 'choose' the role of their daughters, according to a new study published in BioMed Central's open access journal Frontiers in Zoology.

Brain study shows why some people are more in tune with what they want
Wellcome Trust researchers have discovered how the brain assesses confidence in its decisions.

Bugs without borders
Researchers describe how the global epidemic of Clostridium difficile in the mid-2000s was caused when two separate strains of the pathogen emerged from north America.

Novel therapeutic agents provide hope for patients with hard-to-treat blood disorders
Encouraging safety and efficacy data on novel and emerging therapies presented at the 54th Annual Meeting of the American Society of Hematology signal an important step forward in the development of treatment strategies for patients with hard-to-treat leukemia, myeloma, and myelofibrosis.

Self-assembled monolayers create p-n junctions in graphene films
Researchers are creating graphene p-n junctions by transferring films of the electronic material to substrates that have been patterned by compounds that are either strong electron donors or electron acceptors.

Temple scientists target DNA repair to eradicate leukemia stem cells
Despite treatment with imatinib, which targets chronic myeloid leukemia, some patients may be at risk for relapse because of leukemia stem cells that are resistant to treatment, accumulating additional genetic errors, and leading to disease progression.

Unlocking the value of medical case reports: BioMed Central launches Cases Database
BioMed Central the open access publisher today announced the launch of a valuable new medical resource, Cases Database.

Reduced intensity regimen prior to marrow transplant better for older leukemia patients
A new study led by researchers at the Ohio State University Comprehensive Cancer Center -- Arthur G.

Secrets of gentle touch revealed
Stroke the soft body of a newborn fruit fly larva ever-so-gently with a freshly plucked eyelash, and it will respond to the tickle by altering its movement -- an observation that has helped scientists at the University of California, San Francisco uncover the molecular basis of gentle touch, one of the most fundamental but least well understood of our senses.

More than a third of high-risk leukemia patients respond to an experimental new drug
A new drug for patients with acute myeloid leukemia marked by a specific type of genetic mutation has shown surprising promise in a Phase II clinical trial.
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