Cancer experts at Johns Hopkins say a study tracking 774 prostate cancer patients for a median of eight years has shown that a three-way combination of measurements has the best chance yet of predicting disease metastasis.
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Scientists have performed the first DNA-based reconstruction of the giant extinct moa bird, using prehistoric feathers recovered from caves and rock shelters in New Zealand.
Researchers from the University of Adelaide and Landcare Research in New Zealand have identified four different moa species after retrieving ancient DNA from moa feathers believed to be at least 2500 years old.
RESTON, Va.—A new study published in the July issue of The Journal of Nuclear Medicine shows that positron emission tomography (PET) scans in mice can be used to determine whether a novel type of breast cancer treatment is working as intended. Researchers successfully used PET and a specially-developed radioactive compound to image HER2—a protein often associated with aggressive breast cancer—in breast cancer cells before and after treatment aimed at decreasing HER2 expression.
Researchers from across Europe have united to build the largest quantum key distribution network ever built. The efforts of 41 research and industrial organisations were realised as secure, quantum encrypted information was sent over an eight node, mesh network.
Declining bumblebee populations are at greater risk of inbreeding, which can trigger a downward spiral of further decline. Researchers writing in the open access journal BMC Evolutionary Biology have provided the first proof that inbreeding reduces colony fitness under natural conditions by increasing the production of reproductively inefficient 'diploid' males.
A team of Penn State scientists has shed light on the processes that lead to certain human DNA mutations that are implicated in hundreds of inherited diseases such as tuberous sclerosis and neurofibromatosis type 1. The results one day could influence the way couples who seek to have children receive genetic counseling. The team, led by Kateryna Makova, an associate professor of biology, also includes Erika Kvikstad, a graduate student in the Department of Biology, and Francesca Chiaromonte, an associate professor of statistics.
New research, conducted by Charles Wingo and his colleagues, at the University of Florida, Gainsville, suggests a link between the circadian rhythm and control of sodium (salt) levels in mice.
(Boston) – Researchers from Boston University School of Medicine (BUSM) in collaboration with scientists at the University of Louisville and the University of Nice Sophia Antipolis in France, have identified the target antigen PLA2R in patients with idiopathic membranous nephropathy (kidney disease), which has implications for the diagnosis and treatment of this disease. These findings appear in the July 2 issue of the New England Journal of Medicine.
COLD SPRING HARBOR, N.Y. (Wed., July 1, 2009) – Microbial populations have traditionally been studied in carefully controlled, laboratory-grown cultures. New metagenomic approaches are being developed to study these organisms in environmental or medical samples.
The single-nucleotide polymorphism (SNP) known as 2q35-rs13387042 is associated with increased risk of estrogen receptor (ER) -positive and -negative breast cancer, according to a study published online July 1 in the Journal of the National Cancer Institute.
This study was undertaken to confirm previous research that identified this SNP as a marker of susceptibility to ER–positive breast cancer.
Researchers at the Moores UCSD Cancer Center are injecting a modified herpes virus into melanoma tumors, hoping to kill the cancer cells while also bolstering the body's immune defenses against the disease.
NEW YORK (June 30, 2009) -- A new study of obese adolescents has shown that laparoscopic gastric banding surgery -- the "Lap-Band" procedure -- not only helps them achieve significant weight loss but can also improve and even reverse metabolic syndrome, reducing their risk for cardiovascular disease and diabetes.
The rain band near the equator that determines the supply of freshwater to nearly a billion people throughout the tropics and subtropics has been creeping north for more than 300 years, probably because of a warmer world, according to research published in the July issue of Nature Geoscience.
AUGUSTA, Ga. – Tooth-colored fillings may be more attractive than silver ones, but the bonds between the white filling and the tooth quickly age and degrade. A Medical College of Georgia researcher hopes a new nanotechnology technique will extend the fillings' longevity.
STANFORD, Calif. — A molecule called telomerase, best known for enabling unlimited cell division of stem cells and cancer cells, has a surprising additional role in the expression of genes in an important stem cell regulatory pathway, say researchers at the Stanford University School of Medicine. The unexpected finding may lead to new anticancer therapies and a greater understanding of how adult and embryonic stem cells divide and specialize.