Fetal immune system rejects the mother in preterm labor

Preterm labor, a common pregnancy complication, has long been a mystery to scientists. But a new study from UC San Francisco shows it may sometimes happen when the fetal immune system “wakes up” too early and begins to reject the mother, causing the uterus to start contracting. The researchers think the fetal immune system becomes

Stress hormones spike as the temperature rises

A new study in medical students finds that summer, not winter, is the season when people are most likely to have higher levels of circulating stress hormones. These non-intuitive findings contradict traditional concepts of the taxing physical toll of winter and the relaxed ease of summer. Researchers will present their findings today at the American

Ethics debate overdue in human brain research: experts

What if human brain tissue implanted into a pig transferred some of the donor’s self-awareness and memories? Such a scenario, out of reach for now, is becoming more and more conceivable, according to a group of scientists, ethicists, and philosophers who called Wednesday for a debate on the ethics of storing and using human brain

Back in black for singletons trying to find love

Black beats red as the colour of choice when it comes to finding new love, according to new research based on the hit TV series First Dates, which shows that single people wear more of the darker hue when meeting a potential partner for the first time. The study builds on previous research into the

Who (really) wants gaydar to be accurate anyway?

Researchers from the University of Surrey, Instituto Universitario in Portugal and University of Padua in Italy, studied whether heterosexual, homosexual and lesbian men and women believe their voice is an indicator of their sexual orientation to others and their desire for it to be disclosed. Surveying 241 men and women (heterosexual, homosexual and lesbian) researchers

Evening preference linked to higher BMI in type 2 diabetes

(HealthDay)—Evening preference and a later breakfast are associated with elevated body mass index (BMI) in adults with type 2 diabetes, according to a study published online April 13 in Diabetic Medicine. Hataikarn Nimitphong, M.D., from Mahidol University in Bangkok, and colleagues examined the correlations among meal timing, morning-evening preference, and BMI in 210 non-shift workers

Exercise intervention doesn’t improve walking ability in PAD

(HealthDay)—For patients with peripheral artery disease (PAD), a home-based exercise intervention does not improve walking ability over nine months compared with usual care, according to a study published in the April 24 issue of the Journal of the American Medical Association. Mary M. McDermott, M.D., from the Northwestern University Feinberg School of Medicine in Chicago,

Study: California gun deaths declined between 2000 and 2015

Gun deaths have fallen in California over a 16-year period ending in 2015, driven largely by a decline in gang violence and falling homicide rates among black and Hispanic male victims, a recent study of firearm violence has found. Researchers at the University of California, Davis published their findings in the May issue of the

Stem cells from adults function just as well as those from embryos: Stem cells from elderly donors can be used for personalized treatment of age-related chronic and degenerative diseases, concludes a new review

Donor age does not appear to influence the functionality of stem cells derived from adult body tissues, concludes a new review. The analysis of research on induced pluripotent stem cells (iPSCs) finds that not only are typical signs of aging reversed in iPSCs, but cells derived from both older and younger donors show the same

Hospitals often missing dementia despite prior diagnosis

Hospitals in the UK are increasingly likely to recognise that a patient has dementia after they’ve been admitted for a different reason, finds a new UCL-led study, but it is still only recognised in under two-thirds of people. This is the first study to identify an improvement in dementia diagnosis in hospitals over time, and

Smart phone as a faster infection detector: Portable reader is nearly perfect in finding 12 common viral and bacterial diseases

Washington State University researchers have developed a low-cost, portable laboratory on a phone that works nearly as well as clinical laboratories to detect common viral and bacterial infections. The work could lead to faster and lower-cost lab results for fast-moving viral and bacterial epidemics, especially in rural or lower-resource regions where laboratory equipment and medical

Electrode shape improves neurostimulation for small targets

A cross-like shape helps the electrodes of implantable neurostimulation devices to deliver more charge to specific areas of the nervous system, possibly prolonging device life span, says research published in March in Scientific Reports. The shape, called “fractal,” would be particularly useful for stimulating smaller areas, such as deep brain structures or the retina, since

By 2040, artificial intelligence could upend nuclear stability

A new RAND Corporation paper finds that artificial intelligence has the potential to upend the foundations of nuclear deterrence by the year 2040. While AI-controlled doomsday machines are considered unlikely, the hazards of artificial intelligence for nuclear security lie instead in its potential to encourage humans to take potentially apocalyptic risks, according to the paper.