Culture
(Philadelphia, PA) - The vast majority of cells in the human body contain tiny power plants known as mitochondria that generate much of the energy cells use for day-to-day activities. Like a dynamic renewable resource, these little power plants are constantly dividing and uniting in processes called fission and fusion. The balance between fission and fusion is critical for health - especially cardiovascular health.
MAY 11, 2020 -- Microorganisms living inside and on our body play a crucial role in both the maintenance of our health and the development of disease. Now researchers at UTSA have uncovered evidence about the importance of maintaining physical distance to minimize the spread of microbes among individuals.
The scientists observed monkeys in the wild to understand what role genetics, diet, social groupings and distance in a social network play when it comes to the microbes found inside an animal's gut.
Even before the coronavirus pandemic wreaked havoc with the nation's food supply and economy, one in seven adults between the ages of 50 and 80 already had trouble getting enough food because of cost or other issues, a new poll finds.
The percentage who said they'd experienced food insecurity in the past year was even higher among those in their pre-Medicare years, and those who are African-American or Latino. Older adults with lower household incomes and lower levels of education were also more likely to say they had had trouble getting food.
Evidence from a large study of several thousand patients shows that men have higher concentrations of angiotensin-converting enzyme 2 (ACE2) in their blood than women. Since ACE2 enables the coronavirus to infect healthy cells, this may help to explain why men are more vulnerable to COVID-19 than women.
Most everyone knows that humid heat is harder to handle than the "dry" kind. And recently, some scientists have projected that later in the century, in parts of the tropics and subtropics, warming climate could cause combined heat and humidity to reach levels rarely if ever experienced before by humans. Such conditions would ravage economies, and possibly even surpass the physiological limits of human survival.
Flies that cannot take to the air respond by sleeping more as they learn to adapt to their flightlessness, according to a study from Washington University School of Medicine in St. Louis. The findings, published May 8 in Science Advances, suggest that sleep may be an evolutionary tool that helps animals adapt to challenging new situations.
New research has demonstrated that the key to implementing successful reform in low-performing schools is hiring and retaining effective principals and teachers. These findings, reported in Educational Evaluation and Policy Analysis (EEPA), also note that teacher turnover as well as student mobility and chronic absenteeism undermine potentially positive effects from these reforms.
Epithelial cells are held together and connected by several different types of structures that form cell-cell contacts. One of these structures, found near the top surface of the cell, is the adherens junction. This junction is critical for organ development, tissue architecture and cell function; disruption of adherens junctions can lead to inflammatory bowel disease, disorders of the skin and hair, and certain types of cancer.
As interest in the application of plasma medicine -- the use of low-temperature plasma (LTP) created by an electrical discharge to address medical problems -- continues to grow, so does the need for research advancements proving its capabilities and potential impacts on the health care industry. Across the world, many research groups are investigating plasma medicine for applications including cancer treatment and the accelerated healing of chronic wounds, among others.
CORVALLIS, Ore. -- In the ongoing struggle to address health care disparities in rural communities across the U.S., a recent Oregon State University study found that the perfect partner may be hiding in plain sight.
The direction of ocean currents can determine the direction of gene flow in rafting species, but this depends on species traits that allow for rafting propensity. This is according to a City College of New York study focusing on seahorse and pipefish species. And it could explain how high genetic diversity can contribute to extinction in small populations.
Leesburg, VA, May 8, 2020--Although the clinical symptoms of new pediatric lung disorders such as severe acute respiratory syndrome (SARS), swine-origin influenza A (H1N1), Middle East respiratory syndrome (MERS), e-cigarette or vaping product use-associated lung injury (EVALI), and coronavirus disease (COVID-19) pneumonia may be nonspecific, some characteristic imaging findings "have emerged or are currently emerging," according to an open-access article in the American Journal of Roentgenology (AJR).
WASHINGTON (May 7, 2020) "We have seen this before." Global health scholars have issued a clarion call about the needless loss of life expected because of a foreseeable prospect of "slow and inadequate access to supplies" to control COVID-19 in sub-Saharan Africa. They say what is unfolding now is similar to when lifesaving diagnostics and treatments came to the region long after they were available elsewhere.
In everyday life, matter behaves in a predictable, expected way. If you throw a ball, you assume it will travel in a certain direction and have a predictable recoil. What's more, forces exerted on one object would not have an impact on another, independent object.
An international team of researchers including the University of Adelaide, has completed the first large-scale study of DNA belonging to ancient humans of the central Andes in South America and found early genetic differences between groups of nearby regions, and surprising genetic continuity over thousands of years.