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ApoE4 gene becomes less important to quality of life once people hit their 90s

A gene linked to the risk of developing Alzheimer's, heart disease and diabetes becomes less important to quality of life once people hit their 90s, a Mayo Clinic study shows. At that point, good friends and a positive attitude have a bigger impact, the researchers say.

26 Oct 2012

Ancestry could simplify searches for harmful mutations

Explosive advancement in human genome sequencing opens new possibilities for identifying the genetic roots of certain diseases and finding cures. However, so many variations among individual genomes exist that identifying mutations responsible for a specific disease has in many cases proven an insurmountable challenge.

26 Oct 2012

mTor molecule plays a significant role in myeloid differentiation

University of Illinois cell and developmental Biology professor Fei Wang and colleagues have created a new technique to study how myeloids, a type of blood stem cell, become the white blood cells important for immune system defense against infections and tissue damage.

26 Oct 2012

Targeted deletion of major VEGF gene in mice induces vision loss

Millions of people with "wet" macular degeneration are prescribed a class of medication known as anti-VEGF drugs. But now scientists at The Scripps Research Institute (TSRI) have found that a drastic reduction of VEGF activity may do more harm than good.

26 Oct 2012

Project identifies mechanism behind rapid evolution of male genitals

A new collaborative project among researchers from Uppsala University in Sweden and the University of Cincinnati has, for the first time, demonstrated experimentally the evolutionary force behind the rapid evolution of male genitals, focusing on a species of seed beetle.

26 Oct 2012

Zebrafish model can test unique individual genetic differences in humans

The zebrafish is a potential tool for testing one class of unique individual genetic differences found in humans, and may yield information helpful for the emerging field of personalized medicine, according to a team led by Penn State College of Medicine scientists. The differences, or mutations, in question create minor changes in amino acids -- the building blocks of DNA -- from person to person.

26 Oct 2012

NHCS researchers develop human heart cell model of ARVC

Researchers at the National Heart Centre Singapore (NHCS) have successfully created a human heart cell model of arrhythmogenic right ventricular cardiomyopathy (ARVC), an inherited heart muscle disorder which puts one at high risk of developing life-threatening arrhythmias and sudden cardiac death.

26 Oct 2012

Human Gene Therapy articles describe two novel anti-tumor therapies

Targeted T-cells can seek out and destroy tumor cells that carry specific antigen markers. Two novel anti-tumor therapies that take advantage of this T-cell response are described in articles published in Human Gene Therapy, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers.

26 Oct 2012

Researchers identify new means to eradicate malaria infections

Researchers have identified a new means to eradicate malaria infections by rapidly killing the blood-borne Plasmodium parasites that cause the disease.

26 Oct 2012

Video-article details new laser-activated bio-adhesive polymer

A new video-article in JoVE, Journal of Visualized Experiments, details the use of a new laser-activated bio-adhesive polymer. The chitosan-based polymer, SurgiLux, was developed by scientists at the University of New South Wales.

26 Oct 2012

Sleep deprivation affects memory formation in bees

Everyone feels refreshed after a good night's sleep, but sleep does more than just rejuvenate, it can also consolidate memories. 'The rapid eye movement form of sleep and slow wave sleep are involved in cognitive forms of memory such as learning motor skills and consciously accessible memory', explains Randolf Menzel from the Freie Universt-t Berlin, Germany.

26 Oct 2012

Highlights from 25th European College of Neuropsychopharmacology Congress

In the course of the 25th ECNP Congress leading experts and five and a half thousand psychiatrists, neurologists, neuroscience researchers and public health professionals from over 90 different countries met from 13 to 17 October 2012 in Vienna, Austria, to celebrate ECNP´s 25-year anniversary and engage in groundbreaking debate.

26 Oct 2012

CTCtrap can capture circulating tumour cells in cancer patients

The 7.5 millilitres of blood contained in a standard sample tube is not nearly enough to detect circulating tumour cells (CTCs) in the blood of patients with metastatic breast cancer, prostate cancer, or colorectal cancer with a high enough degree of reliability. These CTCs are the cause of metastases in cancer patients. If they can be effectively characterized, it is possible to arrive at a prognosis and to determine the most effective course of treatment.

26 Oct 2012

CUMC researchers develop first true mouse model of typhoid infection

Columbia University Medical Center (CUMC) researchers have created the first true mouse model of typhoid infection. The development promises to advance the study of typhoid and the creation of new vaccines against the infection, which remains a major health threat in developing countries.

26 Oct 2012

Study defines complexity of underlying mutations responsible for pancreatic cancers

A large-scale study that defines the complexity of underlying mutations responsible for pancreatic cancers in more than 100 patients was published in Nature today.

26 Oct 2012

Study identifies essential mechanism that regulates calcium flow into mitochondria

Most healthy cells rely on a complicated process to produce the fuel ATP. Knowing how ATP is produced by the cell's energy storehouse - the mitochondria -- is important for understanding a cell's normal state, as well as what happens when things go wrong, for example in cancer, cardiovascular disease, neurodegeneration, and many rare disorders of the mitochondria.

26 Oct 2012

New study offers hope for lonely older adults at increased risk of health problems

Always look on the bright side of life. Thanks to a new study from Concordia University, this catchy refrain offers a prescription for staying healthy during one's golden years.

26 Oct 2012

Jefferson researchers to investigate mechanisms involved in nephrogenic systemic fibrosis

Researchers at the Jefferson Institute of Molecular Medicine were awarded almost $384,000 by the National Institutes of Health to investigate the mechanisms involved in the development of a serious and sometimes fatal disease, known as Nephrogenic Systemic Fibrosis, a rare skin disorder linked to Gadolinium-based contrast agents used in magnetic resonance (MRI and MRA) studies.

26 Oct 2012

Artificial CSP proteins reduce S. pneumoniae competence y more than 90%

The bacterium Streptococcus pneumoniae - which can cause pneumonia, meningitis, bacteremia and sepsis - likes to share its antibiotic-defeating weaponry with its neighbors. Individual cells can pass resistance genes to one another through a process called horizontal gene transfer, or by "transformation," the uptake of DNA from the environment.

26 Oct 2012

HCFC1 protein may cause intellectual disability

Genetics researchers at the University of Adelaide have solved a 40-year mystery for a family beset by a rare intellectual disability - and they've discovered something new about the causes of intellectual disability in the process.

26 Oct 2012