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Tag: "diet" at biology news

The very defensive caterpillar

...a on Wednesday 13th of July. After being fed on a diet of antibiotics, hawkmoth (Manduca sexta) caterpill...tory on insects often fed on antibiotic containing diet so these results suggest that the immune response of insect constantly exposed to pathogens in the f...

Genome Sequence for Haemophilus Influenzae Completed

...scopy with the idea of accurately identifying wolf diet from wolf scat. "While we have engaged molecular biologists in studies of animal genetics and isotope dynamics, John is the first structural molecular biologist that we have worked with," says wildlife biologist Rolf Peterson from Michigan Technologi...

Otter adaptations: How do otters remain sleek and warm

...scopy with the idea of accurately identifying wolf diet from wolf scat. "While we have engaged molecular biologists in studies of animal genetics and isotope dynamics, John is the first structural molecular biologist that we have worked with," says wildlife biologist Rolf Peterson from Michigan Technologi...

Beauty queens urge girls not to sacrifice their bones

...m Lebanon who spoke about the importance of proper diet (including adequate calcium and vitamin D), and sufficient exercise, in building bone strength and mass. He also pointed out that certain lifestyle activities, such as eating disorders, smoking and excessive alcohol consumption, can be detrimental to...

Environmental chemical cocktail may sabotage sperm

...eral xenobiotics at any one time, with soya in the diet and exposure to other compounds coming from plastics etc, we need to investigate their possible effects on the fertility of human sperm as quickly as possible." ...

Purdue scientists may have found key to halting spinal cord damage

...alth, and for years, physicians have recommended a diet rich in antioxidants - such as vitamins C and E - which are able to attach themselves to free radicals, detoxifying them. While there is nothing inherently wrong with this approach, Shi said, it might not be getting at the root of some health problem...

Cats' indifference towards sugar explained

... carbohydrates, and therefore eat an "Atkins-like" diet of meat and fat. These findings lead to more questions, Brand says. "The overarching evolutionary questions are: when and why did cats lose the ability to taste sweet things? Which came first, the carnivorous behavior or the inability to taste sweets...

Evolution of taste receptor may have shaped human sensitivity to toxic compounds

... of chemical sensory perception and on the role of diet as a selective force in human evolution. ...

Caloric restriction won't dramatically extend life span in humans: UCLA research

...h rodents, as well as published studies on humans, diet and longevity. He and Michael Rose, professor of ecology and evolutionary biology at the University of California, Irvine, published their findings in a journal article titled, "Why dietary restriction substantially increases longevity in animal mode...

Genetic links could unlock clues to leading cause of blindness

...ays a significant role but not the only role. Even diet plays a big part, she said. Her own research with the National Eye Institute has shown that taking certain vitamins and minerals can reduce the risk of developing the disease by 25 percent over five years. "With the increasing number of people livin...

Fat's fate depends on its source

...f Cell Metabolism. Fats taken in directly from the diet or generated from sugars spark a cascade of gene a...-called "new" fat--further evidence that a healthy diet should include an adequate source of fat. "De novo synthesis of fat is an energy-expensive process ...

Excess liver gene protects against high-fat diet

...h an excess of liver X receptor (LXRa), when fed a diet high in fat, remained free from the high cholester...oup said. "The high-cholesterol, high-fat Western diet has abetted an epidemic of atherosclerotic cardiovascular disease, making it the leading cause of de...

Scientists use manufacturing methods to reconstruct mastodon

...ds of information on health, reproductive history, diet and climate that are the focus of a lot of my research. Once the exhibit opening is behind us, I hope to be able to concentrate more on the interpretation of this animal's history and what it can tell us about late Pleistocene events." Leading up to...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

... species of fruit fly is evolving based on how its diet differentiates it from other fruit flies. Waldbauer uses examples from history, his career and conversations with his entomologist colleagues to illustrate what we can learn from bad bugs. Many of the pests he describes are found in Illinois, inclu...

Important discovery about second most fatal cancer

...ovel approaches of cancer prevention by the use of diet or chemical compounds. The results may be generalizable to the average-risk population. 3. An understanding of the genetic defect may provide important insight into the basic cause of the common non-inherited forms of the same type of cancer. The f...

Oldest fossil human protein ever sequenced

...s, to make inferences about the evolution of human diet and physiology," said Erik Trinkaus, Ph.D., the Mary Tileston Hemenway Professor of Physical Anthropology in Arts & Sciences at Washington University in St. Louis. Trinkaus is considered by many to be the world's most influential scholar of Nean...

NSAID drug protects against intestinal tumors in mice, despite poor diet and gene losses

...causing risks produced by a high-fat Western-style diet - even when several genetic brakes to cancer forma...umor suppressor genes (p27 and APC) and were fed a diet high in fat and low in calcium and vitamin D. "It appears that p21 activation through sulindac offe...

New project aims to make large-scale lobster farms feasible

...xciting because we expect to make breakthroughs in diet development and growout of juveniles that will help to make the culture of this species a reality, " she said. Spiny lobster is an ideal target for commercial culture due to its high value and limited availability from wild capture, mostly using tra...

Biomarkers isolated from saliva successfully predict oral and breast cancer

... might be influenced by eating, drinking, smoking, diet or oral hygiene," said Wong. "So our goal is to provide the optimized and standardized protocol to assure consistent results." The studies are supported by grants from the U.S. Public Health Service (National Institute of Dental & Craniofacial R...

Insight into natural cholesterol control suggests novel cholesterol-lowering therapy

...ong known that cells respond to a high cholesterol diet by shutting down its internal synthesis, he explained. However, the molecular mechanisms by which cholesterol and other related compounds exert that self-control have only more recently begun to emerge. The researchers now demonstrate that lanostero...

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