Body

These cells will self-destruct in 5...4...

These cells will self-destruct in 5...4...

Diverse diet of veggies may decrease lung cancer risk

Diverse diet of veggies may decrease lung cancer risk

PHILADELPHIA — Adding a variety of vegetables to one's diet may help decrease the chance of getting lung cancer, and adding a variety of fruits and vegetables may decrease the risk of squamous cell lung cancer, especially among smokers.

Researchers define role of CEP290 in maintaining ciliary function

A new study in the September 6 issue of the Journal of Cell Biology (www.jcb.org) helps define the role of an important ciliary protein, CEP290. The results could be applied toward targeted gene therapy in cilia-related diseases.

Mutations in human CEP290 cause cilia-related disorders that range in severity from isolated blindness to perinatal death. CEP290 mutations are known to cause Meckel syndrome, Joubert syndrome, and NPHP—the most common syndromic form of cystic kidney disease in childhood—among others.

With HMGB1's help, cells dine in

With HMGB1's help, cells dine in

Like some people, cells eat when they are under pressure—but they consume parts of themselves. A multi-function protein helps control this form of cannibalism, according to a study in the September 6 issue of the Journal of Cell Biology (www.jcb.org).

'Jailbreak' bacteria can trigger heart disease

Plaque-causing bacteria can jailbreak from the mouth into the bloodstream and increase your risk of heart attack says a scientist at the Society for General Microbiology's autumn meeting in Nottingham.

Professor Howard Jenkinson, from the University of Bristol explains how oral bacteria can wreak havoc if they are not kept in check by regular brushing and flossing. "Poor dental hygiene can lead to bleeding gums, providing bacteria with an escape route into the bloodstream, where they can initiate blood clots leading to heart disease," he said.

Fears of a decline in bee pollination confirmed

Fears of a decline in bee pollination confirmed

TORONTO, ON - Widespread reports of a decline in the population of bees and other flower-visiting animals have aroused fear and speculation that pollination is also likely on the decline. A recent University of Toronto study provides the first long-term evidence of a downward trend in pollination, while also pointing to climate change as a possible contributor.

DNA fingerprinting pioneer discovers role of key genetic catalyst for human diversity

DNA fingerprinting pioneer discovers role of key genetic catalyst for human diversity

One of the key drivers of human evolution and diversity, accounting for changes that occur between different generations of people, is explained by new research published today (Sept 5) by world-renowned scientist Professor Sir Alec Jeffreys, who discovered DNA fingerprinting at the University of Leicester.

Biologists find way to reduce stem cell loss during cancer treatment

Biologists at the University of California, San Diego have discovered that a gene critical for programmed cell death is also important in the loss of adult stem cells, a finding that could help to improve the health and well-being of patients undergoing cancer treatment.

Death of the doughnut

Death of the doughnut

Something has been eating Charlie Kerfoot's doughnut, and all fingers point to a European mollusk about the size of a fat lima bean.

A moment on the lips, a year on the hips

A short period of excess food consumption can have long term effects on your body weight and fat storage even after the initial weight is lost. A study published in BioMed Central's open access journal Nutrition & Metabolism has found that a four-week episode of increased energy intake and decreased exercise can cause increased weight and fat mass more than two years later when compared to control individuals.

Moonstruck primates: Owl monkeys need moonlight as much as a biological clock for nocturnal activity

 Owl monkeys need moonlight as much as a biological clock for nocturnal activity

PHILADELPHIA –- An international collaboration led by a University of Pennsylvania anthropologist has shown that environmental factors, like temperature and light, play as much of a role in the activity of traditionally nocturnal monkeys as the circadian rhythm that regulates periods of sleep and wakefulness.

Transition metal catalysts could be key to origin of life, scientists report

Transition metal catalysts could be key to origin of life, scientists report

MBL, WOODS HOLE, MA—One of the big, unsolved problems in explaining how life arose on Earth is a chicken-and-egg paradox: How could the basic biochemicals—such as amino acids and nucleotides—have arisen before the biological catalysts (proteins or ribozymes) existed to carry out their formation?

For some women, preventive mastectomies pay off

SAN ANTONIO, TX (Sept. 3) — A long-term study of women with a genetic predisposition for breast or ovarian cancer showed that those who elected major preventive surgeries had a significantly reduced risk of those cancers.

The study, published Sept. 1 in the Journal of the American Medical Association, confirms the view of one of its researchers, Gail Tomlinson, M.D., Ph.D., interim director of the Greehey Children's Cancer Research Institute at The University of Texas Health Science Center at San Antonio.

MIT moves toward greener chemistry

CAMBRIDGE, Mass. - Phosphorus, a mineral element found in rocks and bone, is a critical ingredient in fertilizers, pesticides, detergents and other industrial and household chemicals. Once phosphorus is mined from rocks, getting it into these products is hazardous and expensive, and chemists have been trying to streamline the process for decades.

Increase in Cambodia's vultures gives hope to imperiled scavengers

Increase in Cambodia's vultures gives hope to imperiled scavengers

While vultures across Asia teeter on the brink of extinction, the vultures of Cambodia are increasing in number, providing a beacon of hope for these threatened scavengers, according to the Wildlife Conservation Society (WCS) and other members of the Cambodia Vulture Conservation Project.