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Rare DNA variations may be responsible for differences in susceptibility to common disorders

One-letter switches in the DNA code occur much more frequently in human genomes than anticipated, but are often only found in one or a few individuals. The abundance of rare variations across the human genome is consistent with the population explosion of the past few thousand years, medical geneticists and evolutionary biologists report in the May 17 advanced online edition of Science.

19 May 2012

Scientists map how XIAP protein activates vital component of immune defence system

Defects in the gene that encodes the XIAP protein result in a serious immune malfunction. Scientists used biochemical analyses to map the protein's ability to activate vital components of the immune system. Their results have recently been published in Molecular Cell, a journal of international scientific repute.

18 May 2012

Breast cancer vaccine that elicits powerful immune response also improves recurrence rates

A breast cancer vaccine already shown to elicit a powerful immune response in women with varying levels of HER2 expression has the ability to improve recurrence rates and is well tolerated in an adjuvant setting, according to new research from a clinical trial led by researchers at The University of Texas MD Anderson Cancer Center.

18 May 2012

The truth about chocolate: does it really contain flavonoids?

There have been many news stories over the years about chocolate and whether it is good or bad for you. The stories often comment on a chemical constituent of chocolate: flavonoids. But what are flavonoids? Does chocolate even contain them? And why should we care if it does?

18 May 2012

Researchers identify novel base modification in RNA

Over the past decade, research in the field of epigenetics has revealed that chemically modified bases are abundant components of the human genome and has forced us to abandon the notion we've had since high school genetics that DNA consists of only four bases.

18 May 2012

NEC, SomaLogic release professional software tool

SomaLogic, Inc., and NEC Corporation today announced the release of SomaSuite, a professional software tool developed by NEC that provides simple, reliable and direct access to the highly multiplexed proteomic data generated by SomaLogic's SOMAscan proteomics assay technology.

18 May 2012

Researchers sequence genomes of 21 breast cancers

In two back-to-back reports published online on 17 May in Cell, researchers have sequenced the genomes of 21 breast cancers and analysed the mutations that emerged during the tumours' development. The individual results are described below.

18 May 2012

Medgenics’ EPODURE receives FDA clearance to proceed into clinical trials

Medgenics, Inc., developer of the novel Biopump technology for the sustained production and delivery of therapeutic proteins in patients using their own tissue, today announced receipt of clearance from the U.S. Food and Drug Administration to proceed with a Phase IIb clinical trial of EPODURE for the treatment of anemia in patients undergoing renal dialysis.

18 May 2012

Scientists investigate how ApoE4 gene contributes to Alzheimer's disease

A well-known genetic risk factor for Alzheimer's disease triggers a cascade of signaling that ultimately results in leaky blood vessels in the brain, allowing toxic substances to pour into brain tissue in large amounts, scientists report May 16 in the journal Nature.

17 May 2012

Insight into why diabetics suffer from increased pain and temperature sensitivity

Why diabetics suffer from increased pain and temperature sensitivity is a step closer to being understood and effectively treated.

17 May 2012

Breast cancer cell surface protein blows cover of potent tumor-generating cells

Breast cancer stem cells wear a cell surface protein that is part nametag and part bull's eye, identifying them as potent tumor-generating cells and flagging their vulnerability to a drug, researchers at The University of Texas MD Anderson Cancer Center report online in Journal of Clinical Investigation.

17 May 2012

Nottingham researchers lead largest ever research project into genetics of pre-eclampsia

Researchers from The University of Nottingham are leading the largest ever international research project into the genetics of the potentially fatal condition pre-eclampsia.

17 May 2012

Study reveals pathway that may help slow development of multiple myeloma

Researchers at NYU School of Medicine have identified a target for slowing the progression of multiple myeloma by using currently available drugs.

17 May 2012

High-throughput sequencing can detect early signs of leukemia relapse

A study led by researchers at Fred Hutchinson Cancer Research Center has found that a next-generation, high-speed DNA-decoding technology called high-throughput sequencing can detect the earliest signs of potential relapse in nearly twice the number of leukemia patients as compared to flow cytometry, the current gold standard for detecting minimal residual disease.

17 May 2012

Updated results from Amgen’s blinatumomab Phase 2 study on ALL

Amgen today announced updated results from a Phase 2 study that showed treatment with blinatumomab (AMG 103) helped achieve a high-rate of complete response (CR) in 72 percent of adult patients with relapsed or refractory B-precursor acute lymphoblastic leukemia (ALL) treated in the study.

17 May 2012

Ibrutinib shows promise against CLL in the elderly

The experimental drug ibrutinib (PCI-32765) shows great promise for the treatment of elderly patients with chronic lymphocytic leukemia (CLL), according to interim findings from a clinical trial.

17 May 2012

Radiation oncology researchers revise glioblastoma classification system

Radiation oncology researchers have revised the system used by doctors since the 1990s to determine the prognosis of people with glioblastoma, which is the most devastating of malignant brain tumors.

17 May 2012

Biologists engineer algae to produce potential candidates for malarial vaccine

Biologists at the University of California, San Diego have succeeded in engineering algae to produce potential candidates for a vaccine that would prevent transmission of the parasite that causes malaria, an achievement that could pave the way for the development of an inexpensive way to protect billions of people from one of the world's most prevalent and debilitating diseases. Initial proof-of-principle experiments suggest that such a vaccine could prevent malaria transmission.

17 May 2012

Combination of daclizumab and vaccine improves survival of breast cancer patients

A team from the Perelman School of Medicine and the Abramson Family Cancer Research Institute at the University of Pennsylvania found that the FDA-approved drug daclizumab improved the survival of breast cancer patients taking a cancer vaccine by 30 percent, compared to those patients not taking daclizumab.

17 May 2012

Quasi-experimental data supports argument that air pollution may be a global risk factor for CVD

During the 2008 Beijing Olympics, changes in air pollution were associated with changes in biomarkers of systemic inflammation and thrombosis (formation of blood clot) as well as measures of cardiovascular physiology in healthy young persons, according to a study in the May 16 issue of JAMA, a theme issue on Global Health.

16 May 2012