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Discovery of a genetic mutation underlying late-onset Leigh syndrome

Researchers at the Montreal Neurological Institute and Hospital (The Neuro), McGill University have discovered a genetic mutation underlying late-onset Leigh syndrome, a rare inherited metabolic disorder characterized by the degeneration of the central nervous system.

11 Aug 2009

Discovery of link between over-indebtedness and obesity

Scientists at the University of Mainz have discovered a close correlation between over-indebtedness and obesity. According to the report published in the journal BMC Public Health, over-indebted Germans are more likely to be overweight or obese than the population in general.

11 Aug 2009

New approach to remove toxic agent that causes myotonic dystrophy

Cell biologists from the Radboud University Nijmegen Medical Centre (Nijmegen, the Netherlands) describe a new approach to remove the toxic agent that causes the neuromuscular disease myotonic dystrophy. Their findings are published in the scientific journal The Proceedings of the National Academy of Sciences.

11 Aug 2009

New method for neonatal icus reduces infection and lung distress in preemies

A new method for improving quality of care can reduce hospital-acquired infections and chronic respiratory distress with oxygen dependency in premature infants in neonatal ICUs, according to a new study in CMAJ (Canadian Medical Association Journal).

11 Aug 2009

Researchers launch study into search-and-destroy antigen for deadly skin cancer

UT Southwestern Medical Center researchers are studying a new antigen to see whether it can track down and kill cancer cells in patients with recurring melanoma, the leading cause of skin cancer deaths.

11 Aug 2009

Holography helps tackle ovarian cancer

Two University of Arizona researchers have formed a research team to design, build and evaluate two versions of an ovarian cancer medical imaging and screening instrument that will use holographic components in a new type of optical microscope.

11 Aug 2009

Predictors of disease behavior change in patients with Crohn's disease

Using the Vienna classification system, it has been shown in clinic-based cohorts that there can be a significant change in disease behavior over time, whereas disease location remains relatively stable. Clinical and environmental factors as well as medical therapy might be relevant in predicting disease behavior change in patients with CD.

11 Aug 2009

Characteristic pathological findings and effects of ecabet sodium in rat reflux esophagitis

Recently, the number of patients with GERD has increased in Japan. However, there have been few reports about the pathological findings in the esophageal squamous epithelium, and there are differing opinions among pathologists about the findings considered characteristic of chronic reflux esophagitis.

11 Aug 2009

STAT3 is required for proliferation and maintenance of multipotency in glioblastoma stem cells

In a study published online in advance of print in Stem Cells, Tufts researchers report that the STAT3 gene regulates cancer stem cells in brain cancer. Cancer stem cells have many characteristics of stem cells and are thought to be the cells that drive tumor formation. The researchers report that STAT3 could become a target for cancer therapy, specifically in Glioblastoma multiforme (GBM), a type of malignant and aggressive brain tumor.

11 Aug 2009

Don't smoke, exercise and eat sensibly to reduce risk of chronic disease

Four healthy lifestyle factors - never smoking, maintaining a healthy weight, exercising regularly and following a healthy diet - together appear to be associated with as much as an 80 percent reduction in the risk of developing the most common and deadly chronic diseases, according to a report in the August 10/24 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

11 Aug 2009

Recruitment of new neurons slows when old brain cells kept from dying

Recruitment of new neurons slows when old brain cells kept from dying. Like clockwork, brain regions in many songbird species expand and shrink seasonally in response to hormones.

11 Aug 2009

New class of molecules capable of blocking formation of tau protein fibrils

A new class of molecules capable of blocking the formation of specific protein clumps that are believed to contribute to Alzheimer’s disease pathology has been discovered by researchers at the University of Pennsylvania School of Medicine. By assaying close to 300,000 compounds, they have identified drug-like inhibitors of AD tau protein clumping, as reported in the journal Biochemistry.

11 Aug 2009

Research shows how schizophrenia works in the brain

Schizophrenia waits silently until a seemingly normal child becomes a teenager or young adult. Then it swoops down and derails a young life.

11 Aug 2009

Childhood cancer survivors treated with radiation may have an increased risk of diabetes

Childhood cancer survivors treated with total body or abdominal radiation may have an increased risk of diabetes, according to a report in the August 10/24 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. This correlation does not appear to be related to patients’ body mass index or physical inactivity.

11 Aug 2009

New molecule blocks lymphangiogenesis

Researchers in the laboratory of Dr. Jayakrishna Ambati at the University of Kentucky have discovered the first naturally occurring molecule that selectively blocks lymphatic vessel growth. In an article in the Aug. 9, 2009 online edition of Nature Medicine, they report the identification of a new molecule known as soluble VEGFR-2 that blocks lymphangiogenesis - the growth of lymphatics - but not blood vessel growth.

11 Aug 2009

Widespread general use of fluoroquinolones is creating drug-resistant tuberculosis

Use of a common antibiotic may be undercutting its utility as a first-line defense against drug-resistant tuberculosis (TB). Fluoroquinolones are the most commonly prescribed class of antibiotics in the U.S. and are used to fight a number of different infections such as sinusitis and pneumonia. They are also an effective first line of defense against TB infections that show drug resistance. New research shows, however, that widespread general use of fluoroquinolones may be creating a strain of fluoroquinolone-resistant TB.

11 Aug 2009

Metabolic bone disease in cirrhosis patients

Long-standing liver disease has long been recognized to result in fragile bones with increased risk of fractures. In various international studies, the overall incidence has varied from 11% to 48%, with a fracture rate of 3%-44%.

10 Aug 2009

French DEET research has little relevance and is irresponsible

“Reports of a French study to examine the effects of DEET on the nervous system of insects has little relevance for the widely-used repellent ingredient’s effects on humans, according to independent scientific experts, including those at the U.S. National Pesticide Information Center,” said Susan Little, director of the DEET Education Program, Washington, D.C.

10 Aug 2009

Amazonian tribe sheds light on causes of heart attacks and strokes in developed countries

Heart attacks and strokes — the leading causes of death in the United States and other developed countries — may have been rare for the vast majority of human history, suggests a study to be published in PLoS ONE on Tuesday, August 11.

10 Aug 2009

Estrogen-dependent switch tempers killing activity of immune cells

The sex hormone estrogen tempers the killing activity of a specific group of immune cells, the cytotoxic T cells (CTLs), which are known to attack tumor cells and cells infected by viruses. The key player in this process is a cytotoxic T cell molecule which has been known for a long time and which scientists have named EBAG9.

10 Aug 2009