Body

Peptide derived from cow's milk kills human stomach cancer cells in culture

Philadelphia, PA, November 7, 2013 – New research from a team of researchers in Taiwan indicates that a peptide fragment derived from cow's milk, known as lactoferricin B25 (LFcinB25), exhibited potent anticancer capability against human stomach cancer cell cultures. The findings, published in the Journal of Dairy Science®, provide support for future use of LFcinB25 as a potential therapeutic agent for gastric cancer.

White-lipped peccary trails lead to archeological discovery in Brazil

While tracking white-lipped peccaries and gathering environmental data in forests that link Brazil's Pantanal and Cerrado biomes, a team of researchers from the Wildlife Conservation Society and a local partner NGO, Instituto Quinta do Sol, discovered ancient cave drawings made by hunter-gatherer societies thousands of years ago.

Female doctors twice as likely to screen low-risk women for cervical cancer with HPV test

ANN ARBOR, Mich. — For low-risk women, the likelihood that they get tested for the infection that causes cervical cancer (human papillomavirus or HPV) may depend on what clinic they visit, their doctor's status and whether their provider is male or female, a University of Michigan Health System study shows.

Bisphenol A is affecting us at much lower doses than previously thought

Bisphenol A (BPA) is a known endocrine disruptor that hijacks the normal responses of hormones. Yet, traditional toxicology studies indicate that only very high doses of this chemical affect exposed animals—doses as high as 50 mg/kg/day. For the past decade, scientists have used modern scientific techniques to probe the effects of BPA on numerous endpoints that are not examined in those traditional toxicology studies. Examining these non-traditional endpoints reveal a very different story.

Mayo Clinic: Less-invasive option as effective as esophagus removal in early esophageal cancer

JACKSONVILLE, Fla. — Use of a minimally invasive endoscopic procedure to remove superficial, early stage esophageal cancer is as effective as surgery that takes out and rebuilds the esophagus, according to a study by researchers at Mayo Clinic in Florida.

Cost-effective method accurately orders DNA sequencing along entire chromosomes

A new computational method has been shown to quickly assign, order and orient DNA sequencing information along entire chromosomes. The method may help overcome a major obstacle that has delayed progress in designing rapid, low-cost -- but still accurate -- ways to assemble genomes from scratch. Data gleaned through this new method can also validate certain types of chromosomal abnormalities in cancer, research findings indicate.

Unique change in protein structure guides production of RNA from DNA

SAN FRANCISCO, CA—November 7, 2013—One of biology's most fundamental processes is something called transcription. It is just one step of many required to build proteins—and without it life would not exist. However, many aspects of transcription remain shrouded in mystery. But now, scientists at the Gladstone Institutes are shedding light on key aspects of transcription, and in so doing are coming even closer to understanding the importance of this process in the growth and development of cells—as well as what happens when this process goes awry.

Preparing for hell and high water

COLLEGE PARK, Md. -- Changes are already happening to Earth's climate due to the burning of fossil fuels, deforestation and large-scale agriculture. As changes get more pronounced, people everywhere will have to adjust. In this week's issue of the journal Science, an international group of researchers urge the development of science needed to manage climate risks and capitalize on unexpected opportunities.

Researchers advocate for climate adaptation science

CORVALLIS, Ore. – An international team of researchers says in a new paper that climate science needs to advance to a new realm – more practical applications for dealing with the myriad impacts of climate variability.

The scientific capability already exists as does much of the organizational structure, they say, to begin responding to emerging climate-related issues ranging from declining snowpack, to severe storms, to sea level rise. What is missing is better engagement between the scientific community and the stakeholders they are seeking to inform.

Plant cell architecture: Growth toward a light source

Stanford, CA—Inside every plant cell, a cytoskeleton provides an interior scaffolding to direct construction of the cell's walls, and thus the growth of the organism as a whole. Environmental and hormonal signals that modulate cell growth cause reorganization of this scaffolding. New research led by Carnegie's David Ehrhardt provides surprising evidence as to how this reorganization process works, with important evidence as to how the direction of a light source influences a plant's growth pattern. It is published by Science Express.

UMMS researchers answer century old question about 3D structure of mitotic chromosomes

WORCESTER, MA – Using three dimensional modeling techniques, advanced computer simulation and next generation sequencing technology, faculty at the University of Massachusetts Medical School (UMMS) and the Massachusetts Institute of Technology (MIT) have resolved a long-standing debate that has consumed scientists ever since chromosomes were first observed under the light microscope by Walther Flemming in 1878.

Children born prematurely face up to a 19 times greater risk of retinal detachment later in life

SAN FRANCISCO – Nov. 7, 2013 – Children born extremely prematurely have up to a 19 times greater risk of retinal detachment later in life than peers born at term, according to a Swedish study published this month in Ophthalmology, the journal of the American Academy of Ophthalmology. In the first large population-based, long-term investigation of the association between preterm birth and later retinal detachment, the research determined that birth before 32 weeks is associated with increased risks of retinal detachment in childhood, adolescence and young adult life.

HPV can damage genes and chromosomes directly, whole-genome sequencing study shows

COLUMBUS, Ohio – The virus that causes cervical, head and neck, anal and other cancers can damage chromosomes and genes where it inserts its DNA into human DNA, according to a new study led by researchers at The Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC – James).

Hope builds for a drug that might shut down a variety of cancers

NEW YORK (November 7, 2013) -- The most frequently mutated gene across all types of cancers is a gene called p53. Unfortunately it has been difficult to directly target this gene with drugs. Now a multi-institutional research team, led by Dr. Lewis Cantley and investigators at Weill Cornell Medical College, has identified a family of enzymes they say is crucial for the growth of cancers that have genetic aberrations in p53.

Potential for added medical benefits uncovered for widely used breast cancer drug

Exemestane, a synthetic steroid drug widely prescribed to fight breast cancers that thrive on estrogens, not only inhibits the production of the hormone, but also appears to protect cells throughout the body against damage induced by UV radiation, inflammation and other assaults, according to results of research by Johns Hopkins scientists.