6,170 articles mezi dny 1.8.2020 a 31.8.2020

Social bonds in adulthood don't mediate early life trauma

When baboons experience trauma in early life, they have higher levels of stress hormones in adulthood--a potential marker of poor health--than their peers who don't experience trauma, even if they have strong social relationships as adults, according to a study led by a University of Michigan researcher.

Social networks can support academic success

Social networks have been found to influence academic performance: students tend to perform better with high-performers among their friends, as some people are capable of inspiring others to try harder, according to Sofia Dokuka, Dilara Valeyeva and Maria Yudkevich of the HSE University. Their paper was published in PLOS ONE.

Speech processing hierarchy in the dog brain

Dog brains, just as human brains, process speech hierarchically: intonations at lower, word meanings at higher stages, according to a new study by Hungarian researchers. The study reveals exciting speech processing similarities between us and a speechless species.

Stretches of repeating DNA predispose to systemic sclerosis

Researchers from the University of Tsukuba found that extended repeats of DNA in the gene FLI1 are associated with systemic sclerosis. By comparing the DNA of systemic sclerosis patients with healthy controls, they found that GA repeats over 22 are associated with the development of the disease as well as with a more severe outcome. These findings help us understand how FLI1 may contribute to the...

Study: Experiencing childhood trauma makes body and brain age faster

Children who suffer trauma from abuse or violence early in life show biological signs of aging faster than children who have never experienced adversity, according to research published by the American Psychological Association. The study examined three different signs of biological aging -- early puberty, cellular aging and changes in brain structure -- and found that trauma exposure was...

Study: Oriole hybridization is a dead end

A half-century of controversy over two popular bird species may have finally come to an end. In one corner: the Bullock's Oriole, found in the western half of North America. In the other corner: the Baltimore Oriole, breeding in the eastern half. Where their ranges meet in the Great Plains, the two mix freely and produce apparently healthy hybrid offspring. But according to scientists from the...

Survey finds Americans social media habits changing as national tensions rise

A new national survey commissioned by The Ohio State University Wexner Medical Center finds more Americans are adjusting how they use social media platforms. Many participants cited stress from COVID-19 and divisive political issues as reasons for taking a social media break. The survey found more than half of Americans (56%) changed their social media habits because of tensions surrounding...

Tackling the bioethics challenges raised by COVID-19

The diverse situations experienced by health-care workers during the COVID-19 pandemic often present serious ethical challenges. From the allocation of resources and triage protocols to health-care worker and patient rights and the management of clinical trials, new ethical questions have come to the forefront of today's global public health emergency.

The art of making tiny holes

It sounds like a magic trick: A highly charged ion penetrates several layers of a material. It creates a big hole in the top layer, but travels through the next layer without damaging it. This new technique can be used to modify surfaces with extremely hight precision.

The effects of COVID-19 on emergency visits, hospitalizations

As COVID-19 swept into the U.S., hospitals across the country have reported that their emergency departments are emptying out. In a new study published Monday, Aug. 3, in JAMA Internal Medicine, a team of researchers from multiple institutions provides insights into this phenomenon.

The outlook is encouraging: Researchers evaluate a pipeline of clinical trials

Amsterdam, NL, August 3, 2020 - A review of currently registered clinical trials of agents targeting Parkinson's disease (PD) reveals that there is a broad pipeline of both symptomatic and potentially disease-modifying therapies currently being evaluated. Investigators report that the outlook for patients is encouraging, given the wide range of therapeutics being clinically tested. They emphasize...

The six strains of SARS-CoV-2

SARS-CoV-2 mutation rate remains low. Across Europe and Italy, the most widespread is strain G, while the L strain from Wuhan is gradually disappearing. These mutations, however, do not impinge on the process of developing effective vaccines

UArizona Health Sciences researcher seeks safer, more effective leukemia treatment

A potentially safer, more effective chemotherapy treatment for patients with blood-related cancers, such as leukemia, who need a particular bone marrow transplant procedure is under study at the University of Arizona Health Sciences. The procedure is known as a haploidentical (half-matched) bone marrow transplantation, or "haplo-BMT," providng an alternate source of stem cells for patients needing...

Women skip medications more in the US than other countries

For patients, especially those living with chronic conditions, nonadherence to prescription medicines due to cost is a common problem. By not filling prescriptions, skipping doses, delaying refills, or splitting pills, patients risk compromising the therapeutic benefit of their treatments. To understand the extent of this problem, researchers studied survey data from 11 high-income countries....

Your hair knows what you eat and how much your haircut costs

University of Utah researchers find that stable isotopes in hair reveal a divergence in diet according to socioeconomic status (SES), with lower-SES areas displaying higher proportions of protein coming from cornfed animals. It's a way, the authors write, to assess a community's diet and their health risks.