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Tag Archives: Energy

Scientific breakthrough will help design antibiotics of the future

Scientific breakthrough will help design antibiotics of the future

Researchers at the University of Bristol focused on the role of enzymes in the bacteria, which split the structure of the antibiotic and stop it working, making the bacteria resistant. The new findings, published in Chemical Communications , show that it’s possible to test how enzymes react to certain antibiotics. It’s hoped this insight will help scientists to develop new antibiotics with a much lower risk of resistance, and to choose the best medicines for specific outbreaks. Continue reading

Discovery of cellular snooze button advances cancer, biofuel research

Discovery of cellular snooze button advances cancer, biofuel research

The discovery of a cellular snooze button has allowed a team of Michigan State University scientists to potentially improve biofuel production and offer insight on the early stages of cancer. Continue reading

Cellular ‘power grid’ failure triggers abnormal heart rhythms after a heart attack

Cellular ‘power grid’ failure triggers abnormal heart rhythms after a heart attack

Heart attack survivors often experience dangerous heart rhythm disturbances during treatment designed to restore blood flow to the injured heart muscle, a common and confounding complication of an otherwise lifesaving intervention. Now a duo of Johns Hopkins researchers working with rat heart cells have shown that such post-heart attack arrhythmias are likely triggered by something akin to a power grid failure inside the injured cardiac cells. This power failure, the team found, is caused by disruption to the cells’ mitochondria — the tiny powerhouses that fuel all cell life — when they become destabilized during the “resuscitation” period after a heart attack and trigger chaotic cell-to-cell signaling that interferes with the heart’s entire electrical network Continue reading

Sandwiches a major contributor to dietary sodium intake

Sandwiches a major contributor to dietary sodium intake

Sandwiches make up a substantial part of the American diet and are a significant contributor to daily energy and sodium intake. By closely analyzing data from the federal nationwide dietary intake survey known as “What We Eat in America NHANES 2009-2010,” a team of Department of Agriculture (USDA) researchers found that on any given day 49 percent of U.S. adults eat at least one sandwich, and sandwiches account for one-fifth of total daily sodium intake Continue reading

How to predict who will suffer the most from stress

How to predict who will suffer the most from stress

More than 23 per cent of Canadians report being stressed or very stressed on most days. While chronic stress increases the risk of poor mental and physical health, not everyone is affected the same way. Some cope well, but for others — especially those most likely to sweat the small stuff — chronic stress can be harmful. Continue reading

Harvesting energy from walking around: Shoe insole charges AAA and watch batteries

Harvesting energy from walking around: Shoe insole charges AAA and watch batteries

A shoe fits a device that saves the energy the person makes by walking and successfully uses it in watch batteries. At the Center for Research in Advanced Materials (CIMAV), scientists decided to “capture” the energy produced by people walking. Continue reading

Search for better biofuels microbes leads to human gut

Search for better biofuels microbes leads to human gut

Scientists have scoured cow rumens and termite guts for microbes that can efficiently break down plant cell walls for the production of next-generation biofuels, but some of the best microbial candidates actually may reside in the human lower intestine, researchers report. Continue reading

Reduced energy density in foods can create healthier food environment, may help to reduce obesity

Reduced energy density in foods can create healthier food environment, may help to reduce obesity

On the heels of new research showing that 16 major food and beverage companies have collectively cut 6.4 trillion calories from U.S. food products, The Obesity Society (TOS) issues an official position statement pointing to the pervasive availability of foods high in calories per unit of weight, or energy density, as a contributing factor for weight gain and obesity. The Society goes further to urge food companies to test and market foods that will help individuals reduce the energy density in their diets and better manage body weight. Continue reading

Comparison of named diet programs finds little difference in weight loss outcomes

Comparison of named diet programs finds little difference in weight loss outcomes

In an analysis of data from nearly 50 trials including about 7,300 individuals, significant weight loss was observed with any low-carbohydrate or low-fat diet, with weight loss differences between diet programs small, findings that support the practice of recommending any diet that a patient will adhere to in order to lose weight, according to a study in the September 3 issue of JAMA . Named or branded (trade-marked) weight loss programs provide structured dietary and lifestyle recommendations via popular books and in-person or online behavioral support and represent a multibillion dollar industry. Debate regarding the relative merit of the diets is accompanied by advertising claiming which macronutrient composition is superior, such as a low-carbohydrate or low-fat diet. Continue reading

Comparison of named diet programs finds little difference in weight loss outcomes

Comparison of named diet programs finds little difference in weight loss outcomes

In an analysis of data from nearly 50 trials including about 7,300 individuals, significant weight loss was observed with any low-carbohydrate or low-fat diet, with weight loss differences between diet programs small, findings that support the practice of recommending any diet that a patient will adhere to in order to lose weight, according to a study in the September 3 issue of JAMA . Continue reading