Nodal status is best predictor of outcome after neoadjuvant therapy for esophageal cancer
...n performance status. Several tissue samples from each patient were extracted during surgery and were subsequently examined for extent of residual cancer, depth of invasion, and lymph node metastasis. The patients were also assigned a tumour stage according to the TNM staging system. All patients were fo...Semiconductor membrane mimics biological behavior of ion channels
...mbrane structure is made of two layers of silicon, each 12 nanometers thick, with opposite (n- and p-) dop...ith a neck 1 nanometer in diameter and openings on each side of the membrane 6 nanometers in diameter. The size of the nanopore can be changed by changing t...Unraveling the physics of DNA's double helix
...rces within single strands of DNA that wind around each other in pairs to form the complete, double-strand...ed. Exactly what happens at the molecular level at each of the two plateaus will be the subject of continued investigation, he said. ...ACMG recognizes progress made in newborn screening
...d that about 10,000 of the 4.1 million babies born each year in the United States will be identified with ...ld not ordinarily be detected without testing. For each of the core diseases, an accurate test is currently available and there are demonstrated benefits of...Cells take risks with their identities
... of the genes because thats how many are active in each cell, Guenther says. We were shocked when it showed up on more than 75 percent of the genes in both unspecialized embryonic stem cells and specialized adult cells. Further experiments confirmed that the majority of inactive genes undergo transcript...How plants learned to respond to changing environments
...s, but the proteins they make do not interact with each other and cant repress growth. However, the moss ... products of their genes are able to interact with each other, and the hormone gibberellin. However this still does not result in growth repression. Not u...CU researchers discover evidence of very recent human adaptation
...nned genome sequences that compared many humans to each other throughout the entire genome, with new strict statistical methods that correct for many potential biases that creep into this kind of analysis. In the latest study, the researchers identified 101 regions of the human genome with strong evidence...Sour taste make you pucker? It may be in your genes
...s to determine the lowest concentration needed for each twin to correctly identify a citric acid solution as sour. Because MZ twins have nearly identical genes while DZ twins share only about 50% of their genes, more similar responses in MZ than DZ pairs suggests that genes help determine sensitivity ...A stepwise retreat: How immune cells catch pathogens
... and the force of the retraction and revealed that each individual retraction step is 36 nanometres long. These parameters match the properties of a class of proteins called myosins suggesting them as the driving force of filopodia retraction. Myosins are motor proteins, proteins that move along actin fil...5 OHSU faculty members singled out for honors
...meritorious academic accomplishments. The winners each of whom has received $3,500 from the OHSU Foundation are: Research: Michael V.Danilchik, Ph.D., professor in the department of integrative biosciences in the School of Dentistry. Danilchik works at the interface between cell and developmental bio...Researchers probe risks, benefits of folic acid fortification
...of colorectal cancer for every 100,000 individuals each year compared to the trends that existed before fortification. Our analysis suggests that this increase is not explained by chance or by increased cancer screening. Therefore, it is important to analyze risks and benefits of fortification, and enco...Boosting key milk nutrients may help lower type 2 diabetes risk
...y) compared to those getting less than 1 servings each day. Most of the studies assessed were observational and the limited number of intervention trials makes definitive conclusions difficult, yet the Tufts researchers suggest calcium and vitamin D may affect the bodys ability to produce or utilize in...Study shows cane sugar, corn sweeteners have similar effects on appetite
.... Each participant went through separate tests for each type of beverage over the span of several weeks. Study participants who drank a non-caloric diet cola ate about the same amount at lunch as when they had no beverage at all. Participants ate somewhat less at lunch after drinking any of the caloric b...Nearly 90 percent of babies receive recommended newborn screening tests
...n Screening and Genetics Resource Center to survey each states newborn screening requirements. The snaps...s A list of which screening tests are provided by each state can be found on the Peristats section of the March of Dimes Web site at marchofdimes.com/peris...Study provides new data about the laws governing embryo development in organisms
...d on general laws written into the genetic code of each cell and which enable them to develop a specialist function, modifying the way they divide, their form and their behaviour. These changes are coordinated through a series of instructions that must be correctly interpreted within the cell, and this me...New research shows vaginal bacteria vary among healthy women, need customized treatment
...ght kinds of normal vaginal bacterial communities, each community is different, and, among the eight kinds of communities, some bacterial communities are unique to one or the other racial group. Understanding the differences between these normal vaginal communities is the key to developing effective tre...Fat horses face health problems
...mount of fat cover of the horses, were assigned to each animal. The scores range from 1 to 9 and a score ...biomarkers. A questionnaire was also completed by each horses owner to gather background information on breed, gender, health history, feed, and exercise. ...Satellite survey links tropical park fires with poverty and corruption
... reflecting the level of poverty and corruption in each country. The Corruption Protection Index was provided by Transparency International; other information came from United Nations files and the CIA-World Fact Book. As part of this publication, fire frequency data from 3,964 tropical reserves will be ...MIT, BU team builds viruses to combat harmful 'biofilms'
...t target different species or strains of bacteria, each constructed using related design principles to express different enzymes. Creating such a library may soon be feasible with new technologies for synthesizing genes quickly and cheaply. We hope in a few years, it will be easy to create libraries of...Global community listens to TAU genetic researcher at EU Conference on Hearing Loss
...rk with both the deaf and blindtogether to discuss each others strides made in their respective fields, says Prof. Avraham, an American-Israeli geneticist, whose field of research, genomics, aims to investigate the biological mechanisms that can lead to hearing disorders. Prof. Avrahams work demonstrat...