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Tag: "common" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...ild awoke, and if he or she exhibited any of seven common forms of sleep problems, such as having nightmares, refusing to go to bed or having trouble falling asleep. Surprisingly, babies born to mothers classified as anxious or depressed while pregnant dozed just as long as their unstressed-pregnancy cou...

Researchers discover inherited mutation for leukemia

...hronic lymphocytic leukemia (CLL), one of the most common forms of the disease. The study shows that the i... have come to believe that such subtle changes are common causes of cancer, and this is one of the first, strong examples of that principle." The study su...

Agent slows aging in mice

...GA, a compound derived from creosote bushes. These common North American desert shrubs have been traditionally used by Native Americans as healing remedies. The preliminary results, to be published in August in the journal Aging Cell, show that male mice fed a normal diet and NDGA so far have survived ...

Discovery in orange cauliflower may lead to more nutritious crops

...tamin A is important because vitamin A deficiency, common in developing countries, leads to compromised immune systems and is the leading cause of blindness in children. "A large percentage of the human population depends on staple crops for nutrition," said Li, an adjunct assistant professor in the Depar...

A new plant-bacterial symbiotic mechanism promising for crop applications

...that initiates the rhizobia-legume symbiosis. This common model requires the presence of several nod genes which allow synthesis of the Nod factor, a compound elaborated by the bacterium which enables the plant to recognize it, by molecular recognition, thereby allowing the microorganism to penetrate inside...

Research team identifies new Alzheimer's gene

... ever before has enabled researchers to identify a common gene that appears to increase a person’s risk for ... journal, Neuron. Alzheimer’s disease is the most common form of disabling memory and thinking problems in older people. The progressive neurological disorde...

Pesticides choke pathway for nature to produce nitrogen for crops

...n overall symbiotic nitrogen fixation. The most common explanation for the observations is an overuse of agrichemicals applied to legume crops. That practice sets up "a vicious cycle," Fox said, because it reduces a legume crop's natural need for nitrogen fixation but leaves a shortage of natural nitroge...

Caribbean frogs started with a single, ancient voyage on a raft from South America

... of the Caribbean-island frog species had a single common ancestor," Hedges said. __IMAGE_3 The anatomy of Caribbean frogs previously had led the advocates of both theories to conclude that species in Cuba and other western-Caribbean islands were related to different mainland species than were the spe...

In mice, drug protects against diabetes and atherosclerosis

...hy diets and were genetically predisposed to these common killers, according to an article published online at Nature on June 6, 2007. The team was led by senior author Gökhan Hotamisligil, chair of the Department of Genetics and Complex Diseases at the Harvard School of Public Health (HSPH). Lead author wa...

Longer treatment benefits sleep apnea patients

...dult Americans are believed to have sleep apnea, a common disorder in which the upper airway is intermittently narrowed during sleep, causing breathing to be difficult or even completely blocked. The CPAP device is worn while the patient sleeps and works by blowing just enough air into the nose to keep the ...

Newly found sensing system enables certain bacteria to resist human immune defenses

... Health, have discovered a survival mechanism in a common type of bacteria that can cause illness. The mechanism lets the bacteria protect itself by warding off attacks from antimicrobial peptides (AMPs), which are defense molecules sent by the body to kill bacteria. Bacteria are divided into two types, gr...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

...g further evidence chimpanzees and humans shared a common ancestor five to six million years ago who had a similar level of cultural complexity. For years, primatologists have suggested different communities of chimpanzees across Africa vary in many behavior patterns, indicating they have cultures specif...

Breakthrough developments in rheumatoid arthritis reported

...c enzyme comes in contact with arginine, one of 20 common amino acids in proteins. When one of the enzymes is present, nitrogen is removed from the chemical structure of arginine and it converts into citrulline. Laboratories have developed a test to measure for anti-cyclic citrullinated peptide antibo...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...es. The figures also showed that the three most common skin cancers - basal cell carcinoma, squamous cell... records of patients diagnosed with the three most common skin cancers. They found that men were 30 per cent more likely to suffer from basal cell carcino...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

... a gene that, when mutated, causes one of the most common forms of inherited blindness in babies. Scientists...ne from each parent. However, the disorder is more common within populations where marriage to first or second cousins is common, such as the Pakistani commun...

Researchers examine carbon capture and storage to combat global warming

...e is extracted from a mix of waste gases. The most common method sends the exhaust through a chimney containing a three-dimensional mesh. As the gas goes up, a chemical solvent drizzles down, soaking up the gas where the two substances meet. The carbon dioxide is then extracted from the liquid and compresse...

Researchers shed light on mechanism of action used by anti-cancer drug

...tment of patients with renal cell cancer, the most common form of kidney cancer in adults. It was originally developed as an inhibitor of the oncogene, Raf, which is frequently mutated in numerous cancers, including leukemia. Oncogenes are typically responsible for promoting tumor growth. Previous findin...

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

...nnsylvania, focused their work on zebra finches, a common domesticated pet bird originally from Australia. Carotenoids are known to play several key roles in birds and fish, including contributing to their bright colors, which acts as a signal to attract potential mates. They also act as an antioxidant in t...

Study shows lizard moms dress their children for success

... children, at least among side-blotched lizards, a common species in the western United States. Researchers at the University of California, Santa Cruz, have found that female side-blotched lizards are able to induce different color patterns in their offspring in response to social cues, "dressing" their pr...

College students who pull 'all-nighters' and get no sleep more likely to have a lower GPA

A common practice among many college students involves "pulling all-nighters", or a single night of total sleep deprivation, a practice associated with lower grade-point averages compared to those who make time for sleep, according to a research abstract that...

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