Tag: "fat" at biology news

Rosemary May Have Anti-Cancer Properties

...gainst tumor formationincreased with the amount of fat in the diet. "It suggests that people who eat hi..." Milner says. "For typical Americans,who eat more fat than they should, rosemary may be particularly important." However, the type of fat consumed was im...

Study Shows Songbirds Switch From Bugs To Berries To Fuel Fall Migration

...of insects to aberry-rich diet to store sufficient fat to fuel their grueling migration. Thestudy also sh...e more fruit in themix, the greater the buildup of fat necessary for a successful migration. Switching from insects to fruit offers migrants advantages bey...

Cricket And Chemistry Combine To Provide New Understanding Of How Fats Work

..."leg stump "and "off stump" chains in a particular fat and thus allow industrial chemists to both monitor and model the effect of particular enzymes on various fats. The research team is using a novel Nuclear Magnetic Resonance approach to tag or label the point at which one of the chains or stumps co...

Couch Potatoes, Not French Fries, May Be To Blame For Obesity

...it should be. Also, recent studies have found that fat consumption has gone down across the nation, yet obesity continues to increase," he says. "Right now, more and more people are pointing to decreasing physical activity as a reasonable explanation." Besides reduced activity and exercise, Gretebeck say...

Resistance To Leptin Contributes To Obesity

...e protein leptin, which helps the body regulateits fat stores, contributes to obesity in mice according t...e. Leptin, a product ofthe obese gene, is made in fat and then is released into the blood stream,by which it travels to the brain. Obesity, define...

Female Adolescents Need Calcium During 'Window Of Opportunity'

...n of dairy products doesn't have to mean increased fat consumption, too, Weaver says. "Today, these products all offer no-fat versions, so that shouldn't stop anyone from eating enough diary products." According to Weaver, the new dietary recommendations for calcium are the first of a new set of dietary ...

No Link Seen Between Breast Cancer And Pesticides, PCB Exposure For General Population

...cts. Since these compounds are stored in body fat and are not easily broken down, they accumulate in the body over time. Some of these chemicals have been shown to increase estrogen activity in animals and consequently have been linked to breast-cancer risk. Moysich said the study results su...

Hormonal Changes At Puberty Can Mask High Cholesterol In Blood

...ssues related to diet, including dietary saturated fat andcholesterol. Parents of the remaining children received "usual care," whichincluded printed materials and notification of the children's high cholesterollevels. Over the next three years, boys and girls in the special intervention group hadsignifi...

Human Breast Milk Contains Obesity Hormone

...the breast milk correlates with the amount of body fat of the mother; obese mothers produce large amounts...Research Communications. Leptin is produced by fat cells and the placenta in the body. Since its discovery in the early 1990s, researchers have been ra...

Regulator Of Fat Thermostat Found

...ptin in 52 patients. Levels of leptin,a product of fat cells, climbed even higher in obese subjects. The results werepublished in the October 1997 issue of the Journal of Clinical Endocrinology andMetabolism. Dagogo-Jack says the findings suggest that overweight people still have leptinreserves. "Becaus...

Pitt Researchers Construct Novel Delivery System For Gene Therapy Of Liver Disorders

...ty of Pittsburgh. Typically, lipoproteins pick up fat and take itto the liver where it is released and processed. "In our studies, we placed genes into the RCR structures instead of fatand found that these genes were released into liver cells and their blueprintswere used to build new p...

Chlamydia Vaccine Developed At UMass

...duced. GLXA, on the other hand, is a glycolipid: a fat and carbohydrate molecule that is difficult to test for stability, or to produce in great quantities. Vaccines generally work this way: a patient is treated with tiny amounts of a bacterium or the relevant portion of it. This material is see...

Colorado State Biology Professor Says Fatty Acids, Not Shadow, Determine Outcome Of Groundhog Day Feb. 2

....They fast for seven months, relying solely on the fat they've stored as anenergy source," Florant said. To study hibernating animals, Florant uses a special chamber at ColoradoState that mimics conditions the animals would experience in the wild. Thechamber is dark and cold--about 5 degr...

Infants, Toddlers Should Not Restrict Fat Intake, Experts Say

...ldren as old as 5 years, all of whom may need more fat in their diets than adults, two nutritionists say.... 5 -- especially infants -- are getting too little fat in their diets. They are suggesting new dietary recommendations for children as old as age 5 and cha...

Low Cholesterol? Reduced Sodium? What Do These Terms Really Mean?

...ve dietary components,defined as nutrients such as fat and cholesterol of which most people need toconsum...ment on food labels.Subjects judged the content of fat and sodium in the "low" soups well above theFDA maximums of 5g and 150 mg respectively. With the exc...

"Genetic Factors Influencing Cholesterol Response To Diet"

...ions in Coronary Heart Disease" Saturated fat and cholesterol are two of the strongest dietaryde...l" fraction. The LDL response to reducedsaturated fat and cholesterol intake, however, can vary widely amongindividuals. Recent evidence indicates that g...

Genetics Of Obesity And Of The Response To Chronic Overfeeding

...within pairs. After adjustment for the gains in fat mass, the within-pair similarity wasparticularly evident with respect to the changes in regional fat distributionand amount of abdominal visceral fat with about six times as much variance amongpairs as...

Not Just What You Eat That Affects Risk For Heart Disease And Stroke; Your Genes Influence How Much Damage High-Fat Diet Causes

While you can control how much saturated fat and cholesterol you eat infoods, you can't yet con...oup of people go on the same diet low in saturated fat andcholesterol, their LDL levels can vary widely," said Ronald Krauss, M.D.,organizer of and one of ...

Studies Underscore Link Between Nutrition And Nonmelanoma Skin Cancers

...ry among these factors, Arbesman said, are dietary fat andantioxidant vitamins and minerals. Half of all new cancers diagnosed in the U.S. are skin cancers.Melanoma, the most serious form of skin cancer, accounts for only about 4percent of total skin cancers, but is more prone to spreading and...

Federal Food Aid Makes Healthier Children

... were realized without increases in fat, saturated fat or cholesterol. Preschoolers whose families recei...fects of increases in the intake of fat, saturated fat and cholesterol." The study was funded in part by the USDA....

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