Costs associated with delirium in older adults after elective surgery

What The Study Did: Researchers use a large set of clinical laboratory data linked to other clinical information such as claims to investigate the relationship between SARS-CoV-2 antibody status and subsequent nucleic acid amplification test (NAAT) results in an effort to understand how serostatus may predict risk of reinfection. Authors: Lynne T. Penberthy, M.D., M.P.H., of the National Cancer Institute at the National Institutes of Health in Rockville, Maryland, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamainternmed.2021.0366) Editor's ...

In the last 60,000 years, humans have emerged as an ecologically dominant species and have successfully colonized every terrestrial habitat. Our evolutionary success has been facilitated by a heavy reliance on an ever-advancing technology. Understanding how human technology evolves is crucial to understanding why humans have enjoyed such unprecedented evolutionary success. ASU doctoral graduate Jacob Harris, working with ASU researcher Robert Boyd and Brian Wood from the University of California Las Angeles and the Max Planck Institute for Evolutionary Anthropology, are interested in the role of causal ...

What The Study Did: This study combined the results of 12 studies with 1.8 million participants to examine the association between attention-deficit/hyperactivity disorder (ADHD) in childhood and adolescence and the subsequent risk of developing a psychotic disorder. Authors: Mikaïl Nourredine, M.D., M.Sc., of the Hospices Civils de Lyon in Lyon, France, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (10.1001/jamapsychiatry.2020.4799) Editor's Note: The article includes conflict of interest disclosures. Please see the article for additional information, including other authors, author contributions and ...

BOSTON (February 24, 2021) - Results of a study published today in JAMA Surgery reveal the impact post-operative delirium has on health care costs in the U.S. Data from the study shows that if delirium were prevented or made less severe for patients, it could reduce health care costs by $33 billion per year, that is, $44,300 per patient per year. Severe delirium resulted in an additional $56,500 per patient per year, as compared to routine health care costs for older post-operative patients. Tammy Hshieh, M.D., M.P.H., Adjunct Scientist, and Ray Yun Gou, M.A., Data Scientist II, both with the Aging Brain Center in the Hinda and Arthur Marcus Institute for Aging Research at Hebrew SeniorLife, are co-first authors. Sharon K. Inouye, M.D., M.P.H., Director ...

CHAPEL HILL, N.C.--For the last decade, the U.S. Food and Drug Administration has required tobacco manufacturers and importers to report the levels of harmful and potentially harmful chemicals found in their tobacco products and tobacco smoke. The idea was to educate the public and ultimately to decrease tobacco use, but little research has demonstrated if such information can impact on people's decisions to quit smoking. A new study from the University of North Carolina at Chapel Hill has found that smokers who saw messages about tobacco chemicals with associated ...

The stem cells in our brain generate new neurons throughout life, for example in the hippocampus. This region of the brain plays a key role for a range of memory processes. With increasing age, and in patients suffering from Alzheimer's disease, the hippocampus' ability to create new neurons declines steadily - and with it, its memory functions. Distribution of age-dependent cell damage A study conducted by the research group of Sebastian Jessberger, a professor at the Brain Research Institute of the University of Zurich, shows how the formation of new neurons is impaired with advancing age. Protein structures in the nuclei of neural stem cells make sure that harmful proteins accumulating ...

The most modern light sources for research are based on particle accelerators. These are large facilities in which electrons are accelerated to almost the speed of light, and then emit light pulses of a special character. In storage-ring-based synchrotron radiation sources, the electron bunches travel in the ring for billions of revolutions, then generate a rapid succession of very bright light pulses in the deflecting magnets. In contrast, the electron bunches in free-electron lasers (FELs) are accelerated linearly and then emit a single super-bright flash of ...

Researchers have mapped the physical organization of the brain of a microscopic soil-living nematode worm called Caenorhabditis elegans, creating a new model for the architecture of the animal's brain and how it processes information. In a surprise twist, they found a large degree of variation in the structure of some neural circuits or pathways in individual worms which complemented a core set of neural circuits common to different animals. The scientists say the worms' brains might have a lot more in common with larger animals than previously thought. Created by neuroscientists at the University of Leeds in collaboration with researchers in New York's Albert Einstein College of Medicine, the brain map reveals that ...

Scientists at the Children's Medical Center Research Institute at UT Southwestern (CRI) have identified the specialized environment, known as a niche, in the bone marrow where new bone and immune cells are produced. The study, published in Nature, also shows that movement-induced stimulation is required for the maintenance of this niche, as well as the bone and immune-forming cells that it contains. Together, these findings identify a new way that exercise strengthens bones and immune function. Researchers from the Morrison laboratory discovered that forces created from walking or running are transmitted from bone surfaces along arteriolar blood vessels into the marrow inside bones. Bone-forming ...

A study of spatial learning in mice shows that exposure to new experiences dampens established representations in the brain's hippocampus and prefrontal cortex, allowing the mice to learn new navigation strategies. The study, published in Nature, was supported by the National Institutes of Health. "The ability to flexibly learn in new situations makes it possible to adapt to an ever-changing world," noted Joshua A. Gordon, M.D., Ph.D., a senior author on the study and director of the National Institute of Mental Health, part of NIH. "Understanding the neural basis of this flexible learning in animals gives us insight into ...