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Hares more numerous in Irish Coursing Club Preserves than wider countryside

Irish hares are eighteen times more abundant in areas managed by the Irish Coursing Club (ICC) than at similar sites in the wider countryside a recent study by Queen's University Belfast has shown.

There are approximately 76 local coursing clubs distributed throughout Ireland and each is associated with a number of discrete localities, known colloquially as 'hare preserves'. These are managed favourably for hares including predator control, prohibition of other forms of hunting such as shooting and poaching and the maintenance and enhancement of suitable hare habitat.

The toxicity of antimicrobial silver in products can be reduced

Chemists at the University of Helsinki have managed to manufacture new polymer-stabilised silver nanoparticles. The result is significant because the antimicrobial characteristics of silver are used in textiles, floor coatings and paints even though the impact on health of silver nanoparticles are not entirely known. Finnish researchers now think that exposure to silver can be reduced by chemically binding the nanoparticles to polymers. The research results will soon be published in a leading journal in the field, Colloid and Polymer Science.

UTHealth research shows modified adult stem cells may be helpful in spinal cord injury

HOUSTON-(Feb. 23, 2010)-Researchers at UTHealth have demonstrated in rats that transplanting genetically modified adult stem cells into an injured spinal cord can help restore the electrical pathways associated with movement. The results are published in the Feb. 24 issue of the Journal of Neuroscience.

Dementia in extreme elderly population expected to become epidemic according to the 90+ study

University of California researchers found that the incidence rate for all causes of dementia in people age 90 and older is 18.2% annually and significantly increases with age in both men and women. This research, called "The 90+ Study," is one of only a few to examine dementia in this age group, and the first to have sufficient participation of centenarians. Findings of the study appear in the February issue of Annals of Neurology, a journal published by Wiley-Blackwell on behalf of the American Neurological Association.

Bone marrow cell transplants to benefit those with heart disease

Tampa, Fla. (February 24, 2010) – Two studies published in the latest issue of Cell Transplantation (18:12) may lead to new treatments for the treatment of heart diseases. The first study, carried out by a team of Brazilian researchers, found that cell transplantation of bone marrow mononuclear cells (BMMCs) directly into the heart benefited patients suffering from refractory angina. A separate study carried out by researchers in the Peoples' Republic of China found that apelin, a newly described inotropic peptide, improves heart function following transplantation of BMMCs.

Small dogs originated in the Middle East

A genetic study has found that small domestic dogs probably originated in the Middle East more than 12,000 years ago. Researchers writing in the open access journal BMC Biology traced the evolutionary history of the IGF1 gene, finding that the version of the gene that is a major determinant of small size probably originated as a result of the domestication of the Middle Eastern gray wolf.

Risk of stillbirth is four times higher after IVF/ICSI compared to spontaneous pregnancies

Women who become pregnant with a single foetus after in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) have an increased risk of a stillbirth, according to new research out today (Wednesday).

The study of over 20,000 singleton pregnancies, published in Europe's leading reproductive medicine journal Human Reproduction [1], found a four-fold increased risk of stillbirths for women who had IVF/ICSI compared with women who conceived spontaneously or after fertility treatment that did not involve IVF or ICSI.

Physical activity in schools can improve children's fitness

A structured physical activity programme at school can improve children's fitness and decrease body fat, a study published on bmj.com today shows.

Platelet function tests may provide modest benefit in predicting cardiac outcomes

Study finds that 2 treatment strategies for severe sepsis show similar survival rates

A comparison of two strategies for treating severe sepsis or septic shock finds that using lactate levels measured in blood samples showed a similar short-term survival rate compared to a treatment regimen using central venous oxygen saturation measured using a specialized catheter, according to a study in the February 24 issue of JAMA.

Prednisolone not beneficial in most cases of community-acquired pneumonia

Patients hospitalized with mild to moderate community-acquired pneumonia (CAP) should not be routinely prescribed prednisolone, a corticosteroid, as it is associated with a recurrence of symptoms after its withdrawal, according to the first randomized double-blind clinical trial to address the subject.

DNA sequencing unlocks relationships among flowering plants

GAINESVILLE, Fla. — The origins of flowering plants from peas to oak trees are now in clearer focus thanks to the efforts of University of Florida researchers.

A study appearing online this week in the Proceedings of the National Academy of Sciences unravels 100 million years of evolution through an extensive analysis of plant genomes. It targets one of the major moments in plant evolution, when the ancestors of most of the world's flowering plants split into two major groups.

Overweight middle-aged adults at greater risk for cognitive decline in later life

The adverse affects of being overweight are not limited to physical function but also extend to neurological function, according to research in the latest issue of the Journals of Gerontology Series A: Biological and Medical Sciences (Volume 65A, Number 1).

The publication presents a collection of ten articles highlighting new findings related to obesity in older persons.

Stress hormone, depression trigger obesity in girls

Depression raises stress hormone levels in adolescent boys and girls but may lead to obesity only in girls, according to researchers. Early treatment of depression could help reduce stress and control obesity -- a major health issue.

Breaking the aphid's code

Coral Gables, FL (February 23, 2010)—For the first time, scientists have sequenced the entire genome of the pea aphid, a notorious horticultural and agricultural pest. The findings reveal the extent of the genetic collaboration of the aphid host with its bacterial symbiont, which may account for some of the extraordinary characteristics of this insect.