New research sheds light on why cervical precancers disappear in some women and not in others. Scientists at the Johns Hopkins Kimmel Cancer Center report in the July 1 issue of Clinical Cancer Research that the reason many of these lesions persist is an unlikely mix of human papilloma virus (HPV) strain and a womans individual immune system.
For decades, scientists have known that HPV causes nearly all cases of cancer in the neck of the womb. Most sexually active women – some reports say up to 80 percent – are exposed to HPV and more than half of these women are infected with strains of the virus that could likely turn a precancerous lesion to cancer. But only a small percentage of precancers progress to full-blown cancer, a process that takes years.
To find out why, gynecologic oncologist Cornelia Trimble, M.D., closely monitored 100 women with high-grade, precancerous cervical lesions before standard surgery to remove the abnormal tissue. Some of the lesions – about 28 percent -- regressed by themselves before surgery within a time period considered within the bounds of care standards. But among patients whose pre-cancers lingered, Trimble discovered that women were three times less likely to resolve their lesions if they carried a certain immune system gene and did not have HPV16, the most common strain of the virus.
Vanessa Wasta | EurekAlert!
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26.10.2016 | Duke University
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
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14.10.2016 | Event News
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27.10.2016 | Life Sciences