Stress News and Research

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eLife journal publishes first four research articles

eLife, the new open-access journal for outstanding scientific advancements, has published its first four research articles.

16 Oct 2012

Male infertility linked to an enzyme complex issue

An enzyme complex present in sperm plasma membranes plays an important role in the overproduction of reactive oxygen species and oxidative stress in sperm with abnormal morphology, researchers have shown.

15 Oct 2012

Ultrasound may help predict future tendon injuries in dancers

Asymptomatic focal hypoechoic changes in the patellar and achilles tendons moderately increase the risk for future injury in professional dancers, show study findings.

15 Oct 2012

Females having multiple sexual partners may be more fertile

Researchers have discovered that females that have multiple sexual partners can be more fertile than those that are monogamous and, very surprisingly, that this is the result of an "overproduction" of sons. The study - still only published as a provisional article but already one of the most accessed in BCM Evolutionary Biology - helps to explain a puzzle that has been haunting evolutionary biologist for decades: why during a mating season so many females chase multiple sexual partners when one is enough to fertilize all her eggs and to do it is costly and dangerous.

15 Oct 2012

Pregnancy stress can cut brain benefits of motherhood

A new study in animals shows that chronic stress during pregnancy prevents brain benefits of motherhood, a finding that researchers suggest could increase understanding of postpartum depression.

15 Oct 2012

Variable methylation predictive of age, gender, stress, cancer and early-life socioeconomic status

A Simon Fraser University physicist has helped discover that understanding how a chemical mark on our DNA affects gene expression could be as useful to scientists as fingerprints are to police at a crime scene.

15 Oct 2012

New insights into how brain responds to extreme stress

Researchers report new insights into how the brain responds to extreme stress, whether from combat, natural disasters, or repeated violent competition. The insights offer hope for detecting and treating several widespread and debilitating neuropsychiatric disorders, and were presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health.

15 Oct 2012

Highlights of Mount Sinai research at Neuroscience 2012

Researchers from Mount Sinai School of Medicine are presenting important discoveries on the involvement of the immune system and dopamine cells in the onset of depression at Neuroscience 2012, the Society for Neuroscience's 42nd annual meeting on October 13 -17 in New Orleans, and are available for interviews.

15 Oct 2012

Researchers identify molecular emergency brake in charge of regulating self-digestion

Almost everything that happens inside a cell, including autophagy, is tightly regulated on a biochemical level. Like that, the cell makes sure that processes only take place when they are needed and that they are shut off when the need has expired. "Inside the cell, there exists a network of molecules. Between them, information is constantly being exchanged," says Schmitz, head of the research group "Systems-oriented Immunology and Inflammation Research" at HZI, who also holds a chair at the Otto von Guericke University in Magdeburg.

15 Oct 2012

Hospital superbugs can float on air currents and contaminate surfaces

Hospital superbugs can float on air currents and contaminate surfaces far from infected patients' beds, according to University of Leeds researchers.

12 Oct 2012

Voting contributes to emotional arousal, stress

With Election Day 2012 just weeks away, a recent study provides scientific evidence that voting in national elections is actually a stressful event with measurable hormonal changes.

12 Oct 2012

Concordia researcher investigates cross-gender behavior in children

In exercise books, sports line-ups, or in the simple act of going to the bathroom, school children have to answer the seemingly simple question, "are you a boy or a girl?" For Canadian school kids who exhibit cross-gender behaviour or presentation, this question is not only limiting, it's the source of angst.

12 Oct 2012

Study shows how CaM kinase II triggers cell death following heart damage

University of Iowa researchers have previously shown that an enzyme called CaM kinase II plays a pivotal role in the death of heart cells following a heart attack or other conditions that damage or stress heart muscle.

11 Oct 2012

Antioxidant defense reduced in schizophrenia, bipolar disorder

Results from a Tunisian study suggest that the antioxidant defense system is altered in patients with schizophrenia and bipolar disorder.

11 Oct 2012

New mass spectrometry helps identify bacteria in clinical specimens within minutes

New mass spectrometry technology is helping Le Bonheur Children's physicians analyze microbiology samples quickly - identifying specific bacteria present in a sample within minutes.

11 Oct 2012

Bad news articles increase women's sensitivity to stressful situations

Bad news articles in the media increase women's sensitivity to stressful situations, but do not have a similar effect on men, according to a study undertaken by University of Montreal researchers at the Centre for Studies on Human Stress of Louis-H. Lafontaine Hospital.

11 Oct 2012

Grand Challenges Canada funds 15 new projects to improve mental health diagnosis and care

Grand Challenges Canada, which is funded by the Government of Canada, today announced a landmark $19.4 million in support of 15 innovative, pioneering projects designed to improve mental health diagnosis and care in developing countries, many of them nations ravaged by conflict and disaster as well as poverty.

11 Oct 2012

Exercisers can burn as many as 200 extra calories in just 2.5 minutes

Time spent in the drudgery of strenuous exercise is a well-documented turn-off for many people who want to get in better shape. In a new study, researchers show that exercisers can burn as many as 200 extra calories in as little as 2.5 minutes of concentrated effort a day—as long as they intersperse longer periods of easy recovery in a practice known as sprint interval training.

11 Oct 2012

Dieting, exercise can spur HDL cholesterol production in type 2 diabetics

With a little exercise and dieting, overweight people with type 2 diabetes can still train their fat cells to produce a hormone believed to spur HDL cholesterol production, report medical researchers from The Methodist Hospital and eight other institutions in an upcoming issue of the Journal of Lipid Research.

10 Oct 2012

Salivary-biomarker approach can identify individuals at future risk of PTSD, depression

Each year, more than a million Americans are at-risk of developing serious mental health problems after experiencing a terrifying event or serious physical injury. Once manifested, these psychiatric illnesses, such as post-traumatic stress disorder and depression, can be extremely crippling and difficult to treat and are a leading cause of disability in civilian, military and minority populations.

10 Oct 2012