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New study reveals childhood lead exposure can cause permanent brain injury

A study using functional magnetic resonance imaging (fMRI) to evaluate brain function revealed that adults who were exposed to lead as children incur permanent brain injury. The results were presented today at the annual meeting of the Radiological Society of North America (RSNA).

1 Dec 2009

Neurotoxic heavy metal can slow the progression of Lou Gehrig's disease

New discoveries have been made about how an elevated level of lead, which is a neurotoxic heavy metal, can slow the progression of amyotrophic lateral sclerosis, or Lou Gehrig's disease - findings that could point the way to a new type of therapy.

1 Dec 2009

Reductionist model provides new insights on HIV infection

A major obstacle to HIV research is the virus's exquisite specialisation for its human host - meaning that scientists' traditional tools, like the humble lab mouse, can deliver only limited information. Now, a team of researchers writing in BioMed Central's open access Journal of Biology have made an ingenious assault on this problem by creating a mouse that has key features of HIV infection without being infected with HIV.

1 Dec 2009

Clinical interventions may help cocaine abusers from using drugs and prevent relapse

When asked to inhibit their response to a "cocaine-cues" video, active cocaine abusers were, on average, able to suppress activity in brain regions linked to drug craving, according to a new study at the U.S. Department of Energy's Brookhaven National Laboratory. The results, to be published in an upcoming issue of NeuroImage, suggest that clinical interventions designed to strengthen these inhibitory responses could help cocaine abusers stop using drugs and avoid relapse.

30 Nov 2009

Bantam miRNA linked to the circadian clock

How does our biological system know that it is supposed to operate on a 24-hour cycle? Scientists at the Hebrew University of Jerusalem have discovered that a tiny molecule holds the clue to the mystery.

30 Nov 2009

Tripep completes phase I clinical study of its ChronVac-C hepatitis C virus DNA vaccine

Inovio Biomedical Corporation, a leader in DNA vaccine design, development and delivery, announced today that its partner Tripep AB of Sweden has completed its phase I clinical study of its ChronVac-C hepatitis C virus DNA vaccine delivered using Inovio’s electroporation technology.

30 Nov 2009

ALS research collaboration receives philanthropic funding

Three prominent philanthropic organizations – The Angel Fund, The ALS Therapy Alliance and Project ALS -- dedicated to finding a treatment for amyotrophic lateral sclerosis (ALS) have financed a new collaboration between one of the world’s leading ALS researchers and RXi Pharmaceuticals Corporation, a biopharmaceutical company pursuing the development and commercialization of proprietary therapeutics based on RNA interference (RNAi).

30 Nov 2009

$Stem cell technology for rapid healing of complicated bone fractures$

Stem cell technology for rapid healing of complicated bone fractures

A novel technology involving use of stem cells, developed by Hebrew University of Jerusalem researchers, has been applied to provide better and rapid healing for patients suffering from complicated bone fractures.

30 Nov 2009

Study provides new insight into the mechanism of bacterial invasion protein

Spoiled meat is one of the sources for Listeria infections leading to listeriosis. Pregnant women, newborns and immune compromised people are susceptible for a severe progression of this disease. Firstly, the pathogen breaches the intestinal barrier and thus enters the body. The key for further spreading is the invasion protein internalin B that is located on the bacterial surface.

30 Nov 2009

Novel initiative to improve NMR structure determination

In structural biology, the only technique available to predict the three dimensional structure of large complex molecules in solution, such as proteins and DNA, is NMR spectroscopy. To catalyze improvements in the techniques behind these predictions, the "eNMR" project has launched a new initiative. In September's Nature Methods the project issued an invitation to the entire biomolecular Nuclear Magnetic Resonance community to participate in a large scale test of modern computing algorithms.

30 Nov 2009

Exiqon announces the recognition of ICCB-L

Exiqon A/S announced today that the Harvard Medical School ICCB-Longwood Screening Facility (ICCB-L) has been recognized as a MicroRNA Screening Center of Excellence.

30 Nov 2009

Study explores brain's rewiring processes during motor learning

New connections begin to form between brain cells almost immediately as animals learn a new task, according to a study published this week in Nature. Led by researchers at the University of California, Santa Cruz, the study involved detailed observations of the rewiring processes that take place in the brain during motor learning.

30 Nov 2009

Men and women respond differently to emotional stimuli, says new study

Researchers using functional magnetic resonance imaging (fMRI) to study brain activation have found that men and women respond differently to positive and negative stimuli, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

30 Nov 2009

Scientists provide the first comprehensive picture of minimal cell

What are the bare essentials of life, the indispensable ingredients required to produce a cell that can survive on its own? Can we describe the molecular anatomy of a cell, and understand how an entire organism functions as a system? These are just some of the questions that scientists in a partnership between the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, and the Centre de Regulacio Genòmica (CRG) in Barcelona, Spain, set out to address.

28 Nov 2009

Study on placebo effect

A short time ago, Swedish scientists published a paper suggesting the existence of a genetic disposition to respond to placebo, thus giving rise to debate in the media about a possible "placebo gene." In the current issue of Deutsches Ärzteblatt International (Dtsch Arztebl Int 2009; 106[46]: 751-5), Matthias Breidert and Karl Hofbauer summarize the most recent data about placebos.

28 Nov 2009

Researchers devise new tools for typing cells from children with acute lymphatic leukemia

Researchers at Uppsala University and University Children's Hospital in Uppsala have devised powerful new tools for typing cells from children with acute lymphatic leukemia and for prediction of how children with leukemia will respond to chemotherapy.

28 Nov 2009

Study examines fundamental aspects of fertility in yeast

Research at the University of Leicester analyzing common Baking and Brewers yeast is providing new insights into aspects of human health and fertility.

27 Nov 2009

B cells and their antibodies defend against microbes and control commensal microflora

Microbes populated the earth long before any eukariotic cell. Therefore, in order to survive, mono and multi-cellular organisms had to develop mechanisms of adaptation, cohabitation and defense against bacteria, fungi and viruses. One of these mechanisms is mediated by immunoglobulins in the serum and at mucosal surfaces.

27 Nov 2009

Scientists demonstrate stem cells heal lungs of newborn rats; study anticipated to benefit premature babies

Dr. Bernard Th-baud lives in two very different worlds. As a specialist in the Stollery Children's Hospital's Neonatal Intensive Care Unit at the Royal Alexandra Hospital, he cares for tiny babies, many of whom struggle for breath after being born weeks before they are due.

27 Nov 2009

Sexual selection to greatly enlarge the scope for adaptive speciation, finds new research

Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation.

27 Nov 2009