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Tag: "diet" at biology news

Agent slows aging in mice

...urnal Aging Cell, show that male mice fed a normal diet and NDGA so far have survived in significantly greater numbers than mice on a normal diet. Scientists measured the difference at a point called median lifespan, when half the control mice had died of natural causes associated with aging. “This is...

A new plant-bacterial symbiotic mechanism promising for crop applications

...ds of leguminous plants that are crucial for human diet (soybean, peas, ground nuts and so on…) and as animal feed (alfalfa, clover, sainfoin). In addition, cultivation of legumes living in symbiotic association with bacteria can contribute to vegetation regeneration schemes on soils depleted in nitroge...

In mice, drug protects against diabetes and atherosclerosis

...etabolic havoc when a high-fat or high-cholesterol diet is consumed. The drug appears to have no effect on...e. One set of mice was put on a high-fat "western" diet at five weeks of age; half received the inhibitor drug. A second group of animals ate the western di...

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

...ompromised,” McGraw added. “The interface between diet and health in animals is a fascinating one. But we need a much better understanding of their interactions, as with testosterone, at the molecular level.”...

Ice Age extinction claimed highly carnivorous Alaskan wolves

..., bison, musk ox and caribou—suggesting that their diet was a mix of these large species. The cause of Pleistocene extinction (called the “megafaunal” extinction because of the large size of many of its victims) is controversial. It has been variously blamed on human hunting or climate change, or on...

Hawaiian treasure, macadamia nuts good for the heart

Incorporating macadamia nuts into a heart healthy diet can reduce cardiovascular disease risks according ...ontrolled feeding study to compare a heart-healthy diet with 1.5 ounces ?a small handful ?of macadamia nuts to a standard American diet. The participants ha...

Pistachios lower cholesterol, provide antioxidants

...f pistachios added to a heart healthy moderate-fat diet on cardiovascular disease risk factors. Controlled...iations on the Step I Diet, a cholesterol-lowering diet in general use. The diets included a Step I Diet without pistachios which had 25 percent total fat a...

A cherry on top: Tart cherries may alter heart/diabetes factors

...mals that received powdered tart cherries in their diet had lower total cholesterol, lower blood sugar, le...Rats fed tart cherries as 1 percent of their total diet had reduced markers of metabolic syndrome," says Seymour. "Previous research by other groups studied...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...ic information, age, tobacco habits, lifestyle and diet during pregnancy, among other factors. The study made at the UGR [ http://www.ugr.es ] has facilitated research into the association of the characteristics of parents, newborn babies and childbirth with exposure to pesticides found in the mothers?...

No magic tomato? Study breaks link between lycopene and prostate cancer prevention

...s not work." Previous studies suggested that a diet rich in lycopene protected against prostate cancer...completed a questionnaire related to their health, diet and lifestyle. The researchers focused on non-Hispanic Caucasian men, as the small number of ca...

Fat overrides effects of vitamin C

...no lipids are present. “Our results illustrate how diet can influence gastric biochemistry? says Emilie Combet, the post-doctoral researcher working on the project, who will be presenting her results at the Society of Experimental Biology’s Annual Main Meeting on Monday 2nd of April. The incidence of can...

Studies force new view on biology of flavonoids

...ke of them ?the amount you might find in a healthy diet with five to nine servings of fruits and vegetables ?is sufficient. Large doses taken via dietary supplements might do no additional good; an apple a day may still be the best bet. A research survey, and updated analysis of how flavonoids work and...

Scientists genetically engineer tomatoes with enhanced folate content

...f-of-concept for the natural addition of folate to diet through enhancement of the folate content of fruits and vegetables." The vitamin is commonly found in leafy green vegetables like spinach, but few people eat enough produce to get the suggested amount of folate. So, in 1998, the Food and Drug Admi...

In obesity, brain becomes 'unaware' of fat

...akdown occurs. The researchers fed mice a high-fat diet for 20 weeks, a long time for the mice, which live only for a couple of years. For reasons that remain unclear, some of the genetically identical mice became obese when fed such a diet, while others did not. “On a high-fat diet, not all of the ani...

Arsenic in chicken feed may pose health risks to humans, C&EN reports

...r chickens produced annually in the U.S. are fed a diet containing roxarsone, the article points out. Complicating the issue is the fact that no one knows the exact amount of arsenic found in chicken meat or ingested by consumers who frequently eat chicken. “Neither the Food and Drug Administration no...

Fitness has fallen since the days of Ancient Greece

... people of ancient Athens, despite all that modern diet and training can provide, according to research by University of Leeds (UK) exercise physiologist, Dr Harry Rossiter. Dr Rossiter measured the metabolic rates of modern athletes rowing a reconstruction of an Athenian trireme, a 37m long warship powe...

Indicators for risk of heart disease are higher in passive smokers

...onsumption ?one of the more influential aspects of diet on cardiovascular health ?and for lifestyle factors such as physical activity, social class and obesity. Restricting analysis to those 70 or younger with no history of heart attack, heart failure or stroke also made lifwttle difference in the associa...

Protein sensor for fatty acid buildup in mitochondria

...e. "For example, reducing the level of fat in the diet and taking carnitine supplements might help PKAN patients cope with this debilitating disease." "One of our challenges is how to develop an animal model of this disease that we can use to determine if reduced dietary fat and carnitine supplements ...

Breakthrough in understanding type-2 diabetes as key genes identified

...much more motivated to change things such as their diet to reduce their chances of developing the disorder. We can also use what we know about the specific genetic mutations associated with type-2 diabetes to develop better treatments." The scientists reached their conclusions after comparing the gen...

Bats prey on nocturnally migrating songbirds

...anish giant noctules, with occurrence peaks in the diet in spring and autumn, i.e. during main songbirds' ...ientific evidence. Indeed, presence of feathers in diet was no ultimate demonstration of a bird-based diet, although indicative. New innovative approaches w...

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