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Financial pollution in the US health system

2021-03-08
Boston, MA - Financial pollution arises when exorbitant or unnecessary healthcare spending depletes resources needed for the wellbeing of the population. This is the subject of a JAMA Health Forum Insight co-authored by researchers in the Department of Population Medicine at Harvard Pilgrim Health Care Institute and Harvard Medical School. The Insight was published in the March 8, 2021 issue of JAMA Health Forum. The authors lay out the rationale for "financial pollution" as a metaphor to express the urgency of addressing wasteful health care spending and to guide innovative policymaking. Akin to environmental pollution, financial ...

Understanding the resilience of barrier islands and coastal dunes after storms

2021-03-08
When a coastline undergoes massive erosion, like a hurricane flattening a beach and its nearby environments, it has to rebuild itself - relying on the resilience of its natural coastal structures to begin piecing itself back together in a way that will allow it to survive the next large phenomena that comes its way. Drs. Orencio Duran Vinent, assistant professor, and Ignacio Rodriguez-Iturbe, Distinguished University Professor and Wofford Cain Chair I Professor, in the Department of Ocean Engineering at Texas A&M University, are investigating the resilience of barrier ...

A better way to measure acceleration

A better way to measure acceleration
2021-03-08
You're going at the speed limit down a two-lane road when a car barrels out of a driveway on your right. You slam on the brakes, and within a fraction of a second of the impact an airbag inflates, saving you from serious injury or even death. The airbag deploys thanks to an accelerometer -- a sensor that detects sudden changes in velocity. Accelerometers keep rockets and airplanes on the correct flight path, provide navigation for self-driving cars, and rotate images so that they stay right-side up on cellphones and tablets, among other essential tasks. Addressing the increasing ...

Brain activity foreshadows changes in stock prices

Brain activity foreshadows changes in stock prices
2021-03-08
Forecasting changes in stock prices may be possible with the help of brain activity in regions associated with how people feel before making investment choices. Scientists could accurately forecast market price changes based on the average brain activity among a group but failed when using only prior stock trends or people's investment choices, according to new research published in JNeurosci. Scientists have used the average brain activity among a group to predict which videos will go viral and which crowdfunding campaigns will receive funding. In a new study, Stallen et al. investigated if this relationship extends to a more ...

New discovery explains antihypertensive properties of green and black tea

New discovery explains antihypertensive properties of green and black tea
2021-03-08
Irvine, CA - March 8, 2021 - A new study from the University of California, Irvine shows that compounds in both green and black tea relax blood vessels by activating ion channel proteins in the blood vessel wall. The discovery helps explain the antihypertensive properties of tea and could lead to the design of new blood pressure-lowering medications. Published in Cellular Physiology and Biochemistry, the discovery was made by the laboratory of Geoffrey Abbott, PhD, a professor in the Department of Physiology and Biophysics at the UCI School of Medicine. Kaitlyn Redford, a graduate student in the Abbott Lab, was first author of the study titled, "KCNQ5 potassium channel activation underlies vasodilation by tea." Results from the research revealed that two catechin-type ...

New teamwork model could improve patient health care

2021-03-08
HOUSTON - (March 8, 2021) - Health care teams must prepare for anything, including the unconventional work environments brought about by a global pandemic and social unrest. Multiracial medical team having a discussion as they stand grouped together around a tablet computer on a stair well, overhead view Open communication and trust are essential for successful teamwork in challenging health care situations, as detailed in "Building effective healthcare team development interventions in uncertain times: Tips for success." The paper was authored by researchers at Rice University, the University of Texas MD Anderson ...

Sophisticated skin

2021-03-08
Squids have long been a source of fascination for humans, providing the stuff of legend, superstition and myth. And it's no wonder -- their odd appearances and strange intelligence, their mastery of the open ocean can inspire awe in those who see them. Legends aside, squids continue to intrigue people today -- people like UC Santa Barbara professor Daniel Morse -- for much the same, albeit more scientific, reasons. Having evolved for hundreds of millions of years to hunt, communicate, evade predators and mate in the vast, often featureless expanses of open water, squids have developed some of the most sophisticated skin in the animal kingdom. "For centuries, people have been amazed at the ability of squids to change the color and patterns of their skin -- which they ...

Assessing regulatory fairness through machine learning

Assessing regulatory fairness through machine learning
2021-03-08
The perils of machine learning - using computers to identify and analyze data patterns, such as in facial recognition software - have made headlines lately. Yet the technology also holds promise to help enforce federal regulations, including those related to the environment, in a fair, transparent way, according to a new study by Stanford researchers. The analysis, published this week in the proceedings of the Association of Computing Machinery Conference on Fairness, Accountability and Transparency(link is external), evaluates machine learning techniques designed to support a U.S. Environmental Protection Agency (EPA) initiative to reduce ...

Rise of marine predators reshaped ocean life as dramatically as sudden mass extinctions

Rise of marine predators reshaped ocean life as dramatically as sudden mass extinctions
2021-03-08
GAINESVILLE, Fla. --- Evolutionary arms races between marine animals overhauled ocean ecosystems on scales similar to the mass extinctions triggered by global disasters, a new study shows. Scientists at Umeå University in Sweden and the Florida Museum of Natural History used paleontological databases to build a multilayered computer model of the history of marine life over the last 500 million years. Their analysis of the fossil record closely echoed a seminal 1981 study by paleontologist J. John Sepkoski - with one key difference. Sepkoski's ground-breaking statistical work showed abrupt ocean-wide changes in biodiversity about 490 and 250 ...

Oncotarget: Sensitivity testing on ovarian cancer cells isolated from malignant ascites

Oncotarget: Sensitivity testing on ovarian cancer cells isolated from malignant ascites
2021-03-08
Oncotarget published "Chemotherapy sensitivity testing on ovarian cancer cells isolated from malignant ascites" which reported that the authors aim is to determine the feasibility of cell proliferation assays of tumor cells isolated from malignant ascites to predict in vitro chemotherapy sensitivity, and to correlate these results with clinical outcome. Cell samples were enriched for tumor cells and EOC origin was confirmed by intracellular staining of CK7, surface staining of CA125 and EpCAM, and HE4 gene expression. In vitro sensitivity to chemotherapy was determined in cell proliferation assays using intracellular ATP content as an indirect measure of cell number. In twelve of ...

Oncotarget: High-fat ovariectomized mice susceptible to accelerated tumor growth

Oncotarget: High-fat ovariectomized mice susceptible to accelerated tumor growth
2021-03-08
Oncotarget published "High-fat diet-fed ovariectomized mice are susceptible to accelerated subcutaneous tumor growth potentially through adipose tissue inflammation, local insulin-like growth factor release, and tumor associated macrophages" which reported that the association between obesity and colorectal cancer (CRC) risk has been well established. This relationship appears to be more significant in men than in women, which may be attributable to sex hormones - controlled animal studies to substantiate these claims and the mechanisms involved are lacking. MC38 murine colon adenocarcinoma ...

Oncotarget: Estrogen receptor α polymorphism is associated with dementia

Oncotarget: Estrogen receptor α polymorphism is associated with dementia
2021-03-08
Oncotarget recently published "Estrogen receptor α polymorphism is associated with dementia in a Brazilian cohort" which reported that the growth of the elderly population is a worldwide phenomenon and it is associated with chronic diseases, including dementia. In this scenario, the present study aimed to evaluate a possible association of estrogen receptor α polymorphisms with dementia in a Brazilian cohort. The genotyping for the ERα PvuII and XbaI polymorphisms were performed by polymerase chain reaction-restriction fragment length polymorphism. The ERα PvuII pp genotype was associated with a higher odds ratio for dementia (OR = 3.42, 95% CI = 1.33-8.77, p = 0.01, ...

Aging-US: Hyperbaric oxygen therapy impact on telomere length & immunosenescence

<i>Aging-US</i>: Hyperbaric oxygen therapy impact on telomere length & immunosenescence
2021-03-08
Here is a link to a free Altmetric Report on this Research Output Aging-US published "Hyperbaric oxygen therapy increases telomere length and decreases immunosenescence in isolated blood cells: a prospective trial" which reported that the aim of the current study was to evaluate whether hyperbaric oxygen therapy (HBOT) affects telomere length (TL) and senescent cell concentrations in a normal, non-pathological, aging adult population. Thirty-five healthy independently living adults, aged 64 and older, were enrolled to receive 60 daily HBOT exposures. Whole blood samples were collected at baseline, at the 30th and 60th session, and 1-2 weeks following the last HBOT session. Telomeres ...

Aging-US: High-CBD Cannabis sativa extracts modulate ACE2 expression in COVID-19

Aging-US: High-CBD Cannabis sativa extracts modulate ACE2 expression in COVID-19
2021-03-08
Aging-US published "In search of preventive strategies: novel high-CBD Cannabis sativa extracts modulate ACE2 expression in COVID-19 gateway tissues" which reported that Cannabis sativa, especially those high in the anti-inflammatory cannabinoid cannabidiol, has been found to alter gene expression and inflammation and harbour anti-cancer and anti-inflammatory properties. Working under a Health Canada research license, the Aging-US authors developed over 800 new C. sativa cultivars and hypothesized that high-CBD C. sativa extracts may be used to down-regulate ...

Aging-US: DNA- and telomere-damage does not limit lifespan: evidence from rapamycin

Aging-US: DNA- and telomere-damage does not limit lifespan: evidence from rapamycin
2021-03-08
Aging-US published "DNA- and telomere-damage does not limit lifespan: evidence from rapamycin" which reported that failure of rapamycin to extend lifespan in DNA repair mutant and telomerase-knockout mice, while extending lifespan in normal mice, indicates that neither DNA damage nor telomere shortening limits normal lifespan or causes normal aging. Dr. Mikhail V. Blagosklonny said, "As a provocative title has recently announced, 'rapamycin fails to extend lifespan in DNA repair -deficient mice' [1]. The word 'fails' implies bad news. Rapamycin tried but failed. Yet, it is expected that the anti-aging ...

Cognitive fatigue changes functional connectivity in brain's fatigue network

Cognitive fatigue changes functional connectivity in brains fatigue network
2021-03-08
East Hanover, NJ. March 8, 2021. Kessler Foundation researchers have demonstrated changes in the functional connectivity within the 'fatigue network' in response to cognitive fatigue. This finding, the first of its kind, was reported in Scientific Reports on December 14, 2020 in the open access article, "Using functional connectivity changes associated with cognitive fatigue to delineate a fatigue network" (doi: 10.1038//s41598-020-78768-3). The authors are Glenn Wylie, DPhil, Brian Yao, PhD, Helen M. Genova, PhD, Michele H. Chen, PhD, and John DeLuca, PhD, of Kessler Foundation. All have faculty appointments at Rutgers New Jersey Medical School. Dr. Wylie is also a research scientist at The Department of Veterans' Affairs War-related Injury and Illness ...

Study of coronavirus variants predicts virus evolving to escape current vaccines

2021-03-08
A new study of the U.K. and South Africa variants of SARS-CoV-2 predicts that current vaccines and certain monoclonal antibodies may be less effective at neutralizing these variants and that the new variants raise the specter that reinfections could be more likely. The study was published in Nature on March 8, 2021. A preprint of the study was first posted to BioRxiv on January 26, 2021. David Ho (Credit: Columbia University Irving Medical Center) The study's predictions are now being borne out with the first reported results of the Novavax vaccine, says the study's lead author David ...

Study finds two servings of fish per week can help prevent recurrent heart disease

2021-03-08
Hamilton, ON (March 8, 2021) - An analysis of several large studies involving participants from more than 60 countries, spearheaded by researchers from McMaster University, has found that eating oily fish regularly can help prevent cardiovascular disease (CVD) in high-risk individuals, such as those who already have heart disease or stroke. The critical ingredient is omega-3 fatty acids, which researchers found was associated with a lower risk of major CVD events such as heart attacks and strokes by about a sixth in high-risk people who ate two servings of fish rich in omega-3 each week. "There is a significant protective benefit of fish consumption in people with cardiovascular disease," said lead co-author Andrew Mente, associate ...

3D printing materials for printing aorta model to study optimal CT scanning protocols

2021-03-08
Personalised 3D printed models created from cardiac imaging data, mainly from cardiac CT images have been increasingly used in cardiovascular disease, primarily in the preoperative planning and simulation of complex surgical procedures, as well as medical education. 3D printed models are proved to be highly accurate in replicating normal anatomy and cardiac pathology with reported differences less than 0.5 mm between 3D printed models and original sources images. Further to these applications, a new research direction of utilising 3D printed models is to study the optimal CT scanning protocols in cardiovascular disease with the aim of reducing radiation dose while preserving diagnostic image quality. To achieve ...

Finding key to low-cost, fast production of solid-state batteries for EVs

Finding key to low-cost, fast production of solid-state batteries for EVs
2021-03-08
A new fabrication technique could allow solid-state automotive lithium-ion batteries to adopt nonflammable ceramic electrolytes using the same production processes as in batteries made with conventional liquid electrolytes. The melt-infiltration technology developed by materials science researchers at the Georgia Institute of Technology uses electrolyte materials that can be infiltrated into porous yet densely packed, thermally stable electrodes. The one-step process produces high-density composites based on pressure-less, capillary-driven infiltration of a molten solid electrolyte into porous bodies, including multilayered electrode-separator stacks. "While the melting point of traditional ...

These sea slugs sever their own heads and regenerate brand-new bodies

2021-03-08
You've heard of animals that can lose and then regenerate a tail or limb. But scientists reporting in the journal Current Biology on March 8 have now discovered two species of sacoglossan sea slug that can do even better, shedding and then regenerating a whole new body complete with the heart and other internal organs. The researchers also suggest that the slugs may use the photosynthetic ability of chloroplasts they incorporate from the algae in their diet to survive long enough for regeneration. "We were surprised to see the head moving just after autotomy," said Sayaka Mitoh of Nara ...

Insatiable demand for cannabis has created a giant carbon footprint

Insatiable demand for cannabis has created a giant carbon footprint
2021-03-08
It's no secret that the United States' $13 billion cannabis industry is big business. Less obvious to many is the environmental toll this booming business is taking, in the form of greenhouse gas emissions from commercial, mostly indoor production. A new study by Colorado State University researchers provides the most detailed accounting to date of the industry's carbon footprint, a sum around which there is only limited understanding. What is clear, though, is that consumer demand for cannabis is insatiable and shows no signs of stopping as more states sign on to legalization. The study, ...

Economic benefits of protecting nature now outweigh those of exploiting it, global data reveal

2021-03-08
The economic benefits of conserving or restoring natural sites "outweigh" the profit potential of converting them for intensive human use, according to the largest-ever study comparing the value of protecting nature at particular locations with that of exploiting it. A research team led by the University of Cambridge and the Royal Society for the Protection of Birds (RSPB) analysed dozens of sites - from Kenya to Fiji and China to the UK - across six continents. A previous breakthrough study in 2002 only had information for five sites. The findings, published in the journal Nature Sustainability, come just weeks after a landmark report by Cambridge Professor Partha Dasgupta called for the value of biodiversity to be placed at the heart of global economics. For the latest ...

Sea level rise up to four times global average for coastal communities

2021-03-08
Coastal populations are experiencing relative sea-level rise up to four times faster than the global average - according to new research from the University of East Anglia. A new study published today in Nature Climate Change is the first to analyse global sea-level rise combined with measurements of sinking land. The impact of subsidence combined with sea-level rise has until now been considered a local issue rather than a global one. But the new study shows that coastal inhabitants are living with an average sea level rise of 7.8 mm - 9.9 mm per year over the past twenty years, compared with a global average rise of 2.6mm a year. And the impacts are far larger than the global numbers reported ...

New method could democratize deep learning-enhanced microscopy

2021-03-08
LA JOLLA--(March 8, 2021) Deep learning is a potential tool for scientists to glean more detail from low-resolution images in microscopy, but it's often difficult to gather enough baseline data to train computers in the process. Now, a new method developed by scientists at the Salk Institute could make the technology more accessible--by taking high-resolution images, and artificially degrading them. The new tool, which the researchers call a "crappifier," could make it significantly easier for scientists to get detailed images of cells or cellular structures that have previously been difficult to observe because they require low-light conditions, such as mitochondria, which can ...
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