A single blood test could reveal whether an otherwise healthy person is unusually likely to die of pneumonia or sepsis within the next 14 years.
Based on an analysis of 10,000 individuals, researchers have identified a molecular byproduct of inflammation, called GlycA, which seems to predict premature death due to infections.
The findings, published October 22 in Cell Systems, suggest that high GlycA levels in the blood indicate a state of chronic inflammation that may arise from low-level chronic infection or an overactive immune response. That inflammation damages the body, which likely renders individuals more susceptible to severe infections.
Like seeds, pollen loses most of its water during maturation, entering a state of suspended animation. This allows it to survive its journey from male to female organs of a flower, where it is rehydrated by sugary fluids secreted by the female organ, and springs into life again.
But rehydrating is a dangerous process, one that can kill the pollen grain before it can fertilize the egg if not properly controlled.
New research from the lab of Elizabeth Haswell, PhD, associate professor of biology in Arts&Sciences at Washington University in St. Louis, shows how pollen survives the reanimation process. A specialized protein with ancient origins helps the hydrating pollen grain relieve excessive pressure and survive the stressful transition.
Rapid or significant weight loss through dieting can trigger bone loss. Loss of bone density, in turn, can lead to increased susceptibility to bone fractures in older adults, which can have a debilitating effect on quality of life.
The bone loss is most concerning in people whose weight fluctuates due to "yo-yo" dieting, or repeated cycles of weight gain and loss, because bone lost during weight loss is not typically regained when the person gains weight again, said Urszula Iwaniec, an associate professor in the College of Public Health and Human Sciences at Oregon State University.
A study published today shows that a newly studied class of water contaminants that is known to be toxic and hormone disrupting to marine animals is present likely due in part to indirect effects of human activity. The contaminants are more prevalent in populated areas in the San Francisco Bay, suggesting that human impacts on nutrient input or other changes in water quality may enhance natural production.
A paper in PLOS ONE says humans may have an indirect effect on water quality.
Lives lost without nuclear medicine-->
You’ve probably had subscriptions to newspapers, magazines, or even Netflix. Fairly recently the subscription box has emerged like Loot Crate, filled with Sci-Fi/Fantasy/Comic book themed T-shirts, mugs, minifigures and such. Now there’s a subscription box chemistry set from MEL Science.
“We have reinvented educational chemistry sets for kids,” says Vassili Philippov, CEO of Mel Science. “It includes chemical reagents for real experiments, a mobile app, and a virtual reality headset to let you visualize molecules in 3D.”-->
Computers have scanned aerial photographs and conducted the first automated mass-crowd count in the world, thanks to the work of researchers at the University of Central Florida.
Counting large-scale crowds has been a long, tedious process involving people examining aerial photographs one at a time - and it has been termed accurate, with organizers often claiming results 1000% greater than police and journalists. They are able to make claims and stick to them because the traditional method involves dividing photographs into sections and counting the number of heads per inch.
Bee colonies had a decline in 2006, and a decade earlier, and lots of times going back as far as people kept count of bees, but activists most recently blamed a group of pesticides called neonicotinoids, and ignored climate and parasites, the thing that scientists said made the difference in periodic blips.
Regardless of the consensus, a team of scholars in Environmental Science&Technology blame these "neonics" and claim past studies may have underestimated the bees' exposure to the compounds.
Heart valve replacements made from tissue (bioprosthetic valves) have long been thought to be spared the complication of blood clot formation. Researchers have now found that about 15 percent of all bioprosthetic aortic heart valve patients develop blood clots on the leaflets affecting valve opening, regardless of whether the patient received the new valve via open-heart surgery or a minimally-invasive catheter procedure, a new study from the Cedars-Sinai Heart Institute shows.
The study, published online today by the New England Journal of Medicine and scheduled for the Nov. 26 print edition, also shows that anti-coagulant medications such as Warfarin quickly resolve the clotting issue for all patients, regardless of the type of valve or procedure.
Repeating aloud boosts verbal memory, especially when you do it while addressing another person, says Professor Victor Boucher of the University of Montreal's Department of Linguistics and Translation. His findings are the result of a study that will be published in the next edition of Consciousness and Cognition. "We knew that repeating aloud was good for memory, but this is the first study to show that if it is done in a context of communication, the effect is greater in terms of information recall," Boucher explained.
When a Lake Malawi cichlid loses a tooth, a new one drops neatly into place as a replacement. Why can't humans similarly regrow teeth lost to injury or disease?
Working with hundreds of these colorful fish, researchers are beginning to understanding how the animals maintain their hundreds of teeth throughout their adult lives. By studying how structures in embryonic fish differentiate into either teeth or taste buds, the researchers hope to one day be able to turn on the tooth regeneration mechanism in humans - which, like other mammals, get only two sets of teeth to last a lifetime.
Genetic ancestry, as well as facial characteristics, may play an important part in who we select as mates, according to an analysis that used population genomics and social science data to gauge the relatedness of parents in a study of asthma in Mexican and Puerto Rican children.
Montreal, October 15, 2015 - Scientists at the Research Institute of the McGill University Health Centre (RI-MUHC) and Duke University have made a breakthrough that advances our understanding of how the brain detects and prevents dehydration. They have identified the structure of a key protein located in the brain, which is involved in body hydration and that could control temperature. The findings, which were recently published in the print issue of Cell Reports, could have important clinical implications, as this protein could be a target for the development of treatments and diagnostic tests for many health problems associated with the imbalance of bodily fluids, commonly seen in the emergency room.
Johannes Reiter, former PhD student in the group of Krishnendu Chatterjee at the Institute of Science and Technology Austria (IST Austria), is co-author of a Nature paper on genetic alterations that drive the progression and relapse of cancer. An international team of scientists from the US, Germany and Austria identified novel genes associated with chronic lymphocytic leukemia through the analysis of high-throughput sequencing data.
An international team of researchers, together with participation from the University of Bonn, has investigated a stunning fossil finding from the Cretaceous period. The 125-million-year-old mouse- to rat-sized mammal is preserved so well that even detailed analyses of its fur are possible. An astounding finding: The animal may have suffered from a fungal infection of the hair which also strikes mammals nowadays. The scientists are publishing their results in the journal Nature.
Researchers from the University of East Anglia are calling for medical trial data to be kept in national repositories.
A BMJ study published today reveals how a series of barriers stopped researchers from reviewing the effects of heart failure drugs such as beta blockers on patients.
Now they are calling for greater transparency in research and recommend that access to data should be a mandatory requirement of funding.
They warn that the risks of not doing so, could lead to "erroneous clinical decisions".
Want to hit a fastball like the New York Mets do? It won't surprise you much to learn that baseball players don't think much about hitting the ball - much of it comes from trained muscle memory and a great deal of visual ocularity.
The latest episode of “It’s Okay to Be Smart” outlines the combination of practice, strength, brainpower, and good eyesight that helps players predict the correct time to swing the bat. Fortunately none of those things will make you field the ball like David Murphy, even if you hit like him.
Human twin embryos created in the laboratory by splitting single embryos into two using a common method known as blastomere biopsy may be unsuitable both for IVF and for research purposes, according to a new study.
In the UK, the Human Fertilisation and Embryology Authority Code of Practice says that clinics should not be producing embryos for IVF treatment by embryo splitting, such genetically identical embryos should be used only for research purposes. However, in the US the Ethics Committee of the American Society for Reproductive Medicine has not indicated any major ethical objections to placing two or more artificially created embryos with the same genome into the uterus.