Body

Charting the growth of 1 of the world's oldest babies

The discovery of a juvenile Chasmosaurus--one of the rarest dinosaur discoveries--made headlines around the world in late 2013: Professor Philip Currie from the University of Alberta and his colleagues have now published the results of their scientific findings in an alpha-level taxonomic description in the Journal of Vertebrate Paleontology.

Regrowing functional joints in frogs

Kyoto, Japan -- In a first, Japanese researchers have regenerated functional joints in frogs by activating a newly-found "reintegration" mechanism. Further understanding of this process may help transplanted tissues integrate with the original organs and limbs after surgical removal or amputation.

"We expect that by applying this approach to other animals, we may also achieve functional joint regeneration in mammals, including humans, in the future," says Kyoto University study author Kiyokazu Agata.

Scientists uncover how part of a protein helps primates fight HIV

London, January 14, 2016 - Scientists have uncovered part of a protein found in humans and other primates that can help us fight off HIV. In a new study published in the journal Heliyon, researchers discover how this structure can stop HIV from working and switch on our immune system at the same time. The findings, say the authors of the study, could potentially be used in developing anti-HIV gene therapy in the future.

New discoveries concerning Ötzi's genetic history

A study was published last week on the DNA of Helicobacter pylori, the pathogen extracted from the stomach of Ötzi, the ice mummy who has provided valuable information on the life of Homo Sapiens. New research at the European Academy of Bolzano/Bozen (EURAC) further clarifies the genetic history of man who lived in the Eastern Alps over 5,300 years ago. In 2012 a complete analysis of the Y chromosome (transmitted from fathers to their sons) showed that Ötzi's paternal genetic line is still present in modern-day populations.

Nano-shells deliver molecules that tell bone to repair itself

ANN ARBOR--Scientists at the University of Michigan have developed a polymer sphere that delivers a molecule to bone wounds that tells cells already at the injury site to repair the damage.

Using the polymer sphere to introduce the microRNA molecule into cells elevates the job of existing cells to that of injury repair by instructing the cells' healing and bone-building mechanisms to switch on, said Peter Ma, professor of dentistry and lead researcher on the project.

HPV vaccine uptake is highest among girls in high poverty and majority Hispanic communities

Bottom Line: Adolescent girls living in high-poverty communities and majority Hispanic communities were more likely to have received at least one dose of a human papillomavirus (HPV) vaccine than those living in low-poverty communities and in communities of other racial and ethnic compositions.

Journal in Which the Study was Published: Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research

Health warning labels may deter parents from purchasing sugar-sweetened beverages for kids

PHILADELPHIA - Health warning labels similar to those found on tobacco products may have a powerful effect on whether parents purchase sugar-sweetened beverages (SSB) for their children, according to a new study led by the Perelman School of Medicine at the University of Pennsylvania. The study is the first of its kind to examine the influence of SSB warning labels.

Educational gains by immigrants to US not as large as believed, study finds

One narrative about immigration to the United States is that descendants of migrants achieve greater educational success than they would have in their native lands. But a new study finds that those gains, at least for many children and grandchildren of European immigrants, have not been as large as believed.

Studying immigrants from 10 European nations throughout the 20th century, researchers found that the educational attainment of many of their descendants was not significantly greater than what would have happened if their families had not migrated to the United States.

Seduced by the label

Have you ever been to the supermarket and chosen foods based on nutrition labels? If so, be cautious, because the nutrition values you see on labels can substantially differ based on the recommended serving size, with undesired consequences for your purchase behavior. According to a new research published in the Journal of the Association for Consumer Research, smaller recommended serving sizes on nutrition labels can unknowingly lead you to buy more than you need.

Born to break: Mutation causes fragile bones

Fragile bones are usually an old person's affliction, but sometimes children are born with them. Now, a team of researchers led by UConn professor Ernesto Canalis has shown in mice that a specific gene can cause the disease, called Hajdu-Cheney syndrome. Overabundant bone-absorbing cells may be causing the disorder's characteristic bone loss, and the researchers hope to find a potential treatment.

First demonstration of sexual selection in dinosaurs identified

Large ornamental structures in dinosaurs, such as horns and head crests are likely to have been used in sexual displays and to assert social dominance, according to a new analysis of Protoceratops carried out by scientists at Queen Mary University of London (QMUL).

This is the first time scientists have linked the function of anatomy to sexual selection in dinosaurs.

The Lancet HIV: Preventing HIV infection with prophylactic drugs important to reversing HIV epidemic among men who have sex with

The use of antiretroviral therapy (ART) taken as pre-exposure prophylaxis (PrEP) [1] could lead to a marked decline in HIV incidence--the annual rate of infection--among men who have sex with men (MSM) in the UK by the end of this decade, new modelling research published in The Lancet HIV journal suggests.

The research shows that offering PrEP alongside regular HIV testing and early treatment to just a quarter of MSM at high risk of contracting HIV could prevent around 7400 new HIV infections (44% of total incidence) in the UK before 2020.

NHS Health Check study estimates 2,500 heart attacks and strokes prevented over 5 years

The first major evaluation of the NHS Health Check in England has found that the programme is effectively identifying people at risk of developing a major cardiovascular incident such as heart attack or stroke, and is estimated over first five years to have prevented 2,500 cases from treatment following the check, as well as helping diagnose commonly linked conditions, including type 2 diabetes, high blood pressure and chronic kidney disease.

NHS policies failing to stop bullying by managers and staff sickness

Bullying and discrimination by NHS managers has led to absences among mental health workers, and past policies have failed to stop this, research shows.

Researchers led by the University of Leicester analysed survey data showing that 21% of mental health workers had been bullied and 8% discriminated against by their managers in the previous year. Of these, 86% had gone sick in the year before the survey for an average of 11 days in total.

Mosquito net safe to use in inguinal hernia repair

Sterilised mosquito nets can replace costly surgical meshes in the repair of inguinal (groin) hernias without further risk to the patients. This makes mosquito nets a good alternative for close to 200 million people in low-income countries suffering from untreated groin hernias. These are the results of a Swedish-Ugandan study presented in the prestigious 'New England Journal of Medicine' (NEJM).