Scientists at the Johns Hopkins Kimmel Cancer Center and University of Melbourne report they have used a genetic test that spots bits of cancer-related DNA circulating in the blood to accurately predict the likelihood of the disease's return in some -- but not all -- of a small group of patients with early-stage colon cancer.
Body
LOS ALAMOS, N.M., JULY 6, 2016--In a step that could bring perovskite crystals closer to use in the burgeoning solar power industry, researchers from Los Alamos National Laboratory, Northwestern University and Rice University have tweaked their crystal production method and developed a new type of two-dimensional layered perovskite with outstanding stability and more than triple the material's previous power conversion efficiency.
MADISON, Wis. -- Without question, the domesticated hybrid yeast that gives us lager beer is an organism worth many billions of dollars.
Beer is the world's most commonly fermented beverage and lager beer commands 94 percent of the global market. Making the beer possible is a biological oddity: a hybrid yeast that combines two distinct species and confers the ability to make cold-brewed beer, a product that first emerged 500 years ago in Europe.
Using radiocarbon dating as a forensic tool, researchers have found that human cartilage rarely renews in adulthood, suggesting that joint diseases may be harder to treat than previously thought. The technique, which dates tissues by tracing radioactive carbon and measuring it against levels of carbon-14 in the atmosphere from the nuclear bomb testing in the 1950's and 1960's, reveals that cartilage is an essentially permanent tissue in healthy and osteoarthritic adults alike.
Researchers are working on mimicking cellular systems to develop molecular motors that can move or even deliver drugs to target tissues. Engineering such motors may ultimately lead to molecular robots that can execute more complex tasks. To this end, researchers must find ways to convert motion at the molecular level to motion at the macroscopic level. They also must find ways to cause chemical reactions to repeat autonomously and continuously.
Future Science Group (FSG) published journal, Future Oncology, has released a special issue that examines the field of oncofertility, which aims to preserve fertility in cancer patients.
As the field of cancer research has developed and improved, the numbers of patients surviving many years post-diagnosis is growing. This has led to prioritizing cancer management and improving the quality of life in survivors.
Just as improved diet and medical care have resulted in increased life expectancy in humans, advances in nutrition and veterinary care have increased the life span of pet cats. The result is a growing population of ageing cats; in the USA, for example, it is estimated that 20% of pet cats are 11 years of age or older.
(Boston)--According to a recent study of Framingham Study participants, nearly 60 percent of people have prevalent preclinical heart failure (HF) stages A and B. Heart failure occurs when the heart muscle is weakened and cannot pump enough blood to meet the body's needs for blood and oxygen. In addition, individuals with stage B HF had greater circulating concentrations of cardiac stress biomarkers levels, putting them at increased risk for death.
In several species of primates, males often discern when to mate with a female based on cyclical changes in the size and firmness of her sexual swelling - a visual signal of a female's probability to conceive. In a study of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, primatologist Pamela Heidi Douglas and colleagues investigated for the first time the relationship between ovarian hormones and sexual swellings in wild female bonobos.
An international review team has published a Cochrane systematic review that assessed the effects of programmes that use the World Health Organization's (WHO) integrated management of childhood illness (IMCI) strategy.
The review has already been used by a team who performed a strategic review of integrated management of neonatal and childhood illnesses commissioned by the WHO, and will be used at the WHO strategic review meeting on 7-8 July in Annecy.
AMHERST, Mass. - Forty years of unrest in Afghanistan left wildlife ecologists uncertain whether one of the region's rare sub-species of red deer, the Bactrian deer (Cervus elaphus bactrianus), had survived in the country. But recently, for the first time since the 1970s, a survey team led by Wildlife Conservation Society ecologist Zulmai Moheb, with colleagues in Afghanistan, confirm that a small population exists. They say the animals urgently need conservation.
Changes in benign tissues next to prostate tumors may provide an early warning for patients at higher risk for biochemical recurrence after a radical prostatectomy, a study by researchers at Case Western Reserve University and Johns Hopkins Medical Institutions shows.
Biochemical recurrence, which is increasing prostate-specific antigen (PSA) levels, can be used to predict which prostate cancer patients will develop local recurrence, distant metastases and death.
While biodiversity loss is an undisputable issue concerning everyone on a global scale, data about species distribution and numbers through the centuries is crucial for adopting adequate and timely measures.
However, as abundant as this information currently is, large parts of the actual data are locked-up as scanned documents, or not digitized at all. Far from the machine-readable knowledge, this information is left effectively inaccessible. In particular, this is the case for data from marine systems.
A long-term plan for managing noise in shallow parts of the ocean such as Falmouth Bay is needed to protect the environment, scientists have said.
Manmade noise in the marine environment can increase stress in animals, alter their behaviour, and displace them from habitats important to their daily lives.
CHAPEL HILL, NC - Early life forms on Earth are likely to have mutated and evolved at much higher rates than they do today, suggests a new analysis from researchers at the University of North Carolina.