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Troponin I level test may help rule-out diagnosis of heart attack

For patients admitted to an emergency department with chest pain, use of a contemporary or highly sensitive test for levels of troponin I (a protein in muscle tissue) may help rule-out a diagnosis of heart attack, while changes in the measured levels of this biomarker at 3 hours after admission may be useful to confirm a diagnosis of heart attack, according to a study in the December 28 issue of JAMA.

28 Dec 2011

Research provides first proof of epigenetic risk factor for type 2 diabetes

Research carried out at the Hebrew University of Jerusalem has provided the first proof of molecular risk factors leading to type 2 diabetes, providing an "early warning" sign that could lead to new approaches to treating this and other human disease conditions.

28 Dec 2011

Scientists identify molecular player critical to proper working of important health proteins

Half the drugs used today target a single class of proteins - and now scientists have identified an important molecular player critical to the proper workings of those proteins critical to our health.

28 Dec 2011

Obama and Gingrich differ on embryonic stem cell research

Research!America's new national voter education initiative, Your Candidates-Your Health, features responses from President Obama and Republican Presidential candidate Newt Gingrich on important health research and prevention issues.

28 Dec 2011

Meta-analysis does not find significant association between CYP2C19 genotype and cardiovascular events

Although the U.S. Food and Drug Administration (FDA) has recommended that a certain type of genetic testing (for the genotype CYP2C19) be considered before prescribing the drug clopidogrel to identify individuals who may be less responsive to the medication, a review and analysis of previous studies did not find an overall significant association between the CYP2C19 genotype and cardiovascular events.

28 Dec 2011

Critical considerations for adenovirus-based HIV vaccine trials

A clinical trial testing a candidate HIV vaccine known as the STEP study was halted in September 2007 after interim analysis indicated that the vaccine did not work. Moreover, subsequent analyses indicated that the vaccine made some individuals more susceptible to HIV, in particular individuals who had pre-existing immune effectors (antibodies) that recognized a component of the vaccine (adenovirus serotype 5 [Ad5]).

28 Dec 2011

Obesity associated with hypothalamic injury

The number of people who suffer from one or more of the adverse complications of obesity, including type 2 diabetes and heart disease is rapidly increasing. Thus far, drugs designed to treat obesity have shown limited efficacy and have been associated with serious side effects.

28 Dec 2011

DNA stays too tightly wound in brain cells of patients with schizophrenia

Scientists at The Scripps Research Institute have discovered that DNA stays too tightly wound in certain brain cells of schizophrenic subjects. The findings suggest that drugs already in development for other diseases might eventually offer hope as a treatment for schizophrenia and related conditions in the elderly.

28 Dec 2011

IL-1 gene inactivation may reduce severe clinical complications of atherosclerosis

Atherosclerosis is a disease of the major arterial blood vessels. It is one of the major causes of heart attack and stroke. The proinflammatory molecule IL-1 has been linked to atherosclerosis and a clinical trial has been launched in which an antibody specific for IL-1-beta is being studied for its effects on the severe clinical complications of atherosclerosis.

28 Dec 2011

Researchers decode and characterize DNA repair mechanism

Oxidative stress is the cause of many serious diseases such as cancer, Alzheimer's, arteriosclerosis and diabetes. It occurs when the body is exposed to excessive amounts of electrically charged, aggressive oxygen compounds. These are normally produced during breathing and other metabolic processes, but also in the case of ongoing stress, exposure to UV light or X-rays. If the oxidative stress is too high, it overwhelms the body's natural defences. The aggressive oxygen compounds destroy genetic material, resulting in what are referred to as harmful 8-oxo-guanine base mutations in the DNA.

28 Dec 2011

Current scientific understanding of left and right-handedness

Left-handedness is sometimes the expression of a genetic defect or an early developmental disturbance. In this issue of Deutsches Ärzteblatt International, Stefan Gutwinski and coauthors present the current scientific understanding of left- and right-handedness.

28 Dec 2011

New approach may prevent septic shock

Researchers of VIB and UGent have discovered a new approach to preventing septic shock, an often fatal extreme inflammatory reaction of the body. It is the most frequent cause of death at intensive care departments in hospitals.

28 Dec 2011

Tbx3 dysfunction may cause acquired and spontaneous arrhythmias

In a study published in the Dec. 26, 2011, Proceedings of the National Academy of Sciences early edition, researchers led by the University of Utah showed the CCS is extremely sensitive to levels of Tbx3. Mouse embryos with Tbx3 levels below a critical threshold suffered arrhythmia and couldn't survive. As the levels of Tbx3 were increased, mice survived to birth, but as adults they developed arrhythmias or had sudden death.

27 Dec 2011

FDA clears Meridian Bioscience's new Clostridium difficile assay

Meridian Bioscience, Inc., Cincinnati, Ohio today announced it has received FDA clearance for a new Clostridium difficile assay, ImmunoCard C. difficile GDH.

27 Dec 2011

Synthetic drugs treat Crohn's disease in mice

A team of Weizmann Institute scientists has turned the tables on an autoimmune disease. In such diseases, including Crohn's and rheumatoid arthritis, the immune system mistakenly attacks the body's tissues. But the scientists managed to trick the immune systems of mice into targeting one of the body's players in autoimmune processes, an enzyme known as MMP9.

26 Dec 2011

Researchers discover that neutrophils exist in the spleen

For the first time, it has been discovered that neutrophils exist in the spleen without there being an infection.

26 Dec 2011

Pfizer, Karo Bio partner to develop RORgamma modulators for autoimmune diseases

Karo Bio AB has entered into a research collaboration agreement with Pfizer Inc., to discover and develop novel small molecule RORgamma modulators for the treatment of autoimmune diseases.

26 Dec 2011

Cleveland Clinic scientists named AAAS Fellows

Cleveland Clinic researchers Bruce Lamb, Ph.D., and Xiaoxia Li, Ph.D., were recently named Fellows of the American Association for the Advancement of Science.

26 Dec 2011

AAA announces recipients of Young Investigator Awards

The American Association of Anatomist's (AAA) Young Investigator Awards combine three long-standing AAA awards-Bensley, Herrick, and Mossman-with the recently established Morphological Sciences Award, all recognizing investigators in the early stages of their careers who have made important contributions to biomedical science through their research in cell/molecular biology, developmental biology, comparative neuroanatomy, or the morphological sciences.

26 Dec 2011

Science journal selects Mayo Clinic discovery among top 10 achievements of 2011

The editors of the journal Science have selected a Mayo Clinic discovery as one of their top 10 "groundbreaking scientific achievements of 2011." The Mayo study --the first to eliminate the effects of aging in mice -- received worldwide attention when it was published in Nature in November.

26 Dec 2011