Thanks to recent advances in genome sequencing that allow scientists to analyze DNA faster and more affordably than ever before, researchers at Washington University School of Medicine in St. Louis say they have found that many types of cancer are driven by the same genetic mutations.
Using two high-tech imaging techniques custom-built for their field, researchers at Massachusetts General Hospital and Harvard Medical School will unveil a new method for examining tumor growth at theFrontiers in Optics annual meeting in Orlando, Fla., in October.
Multiphoton laser-scanning microscopy (MPLSM) and optical frequency domain imaging (OFDI) combine to give scientists the ability to look deeply inside tumors in real time, revealing extremely detailed pictures of live tumors as they grow. MPLSM is an advanced fluorescence-imaging technology, and OFDI captures tissues using their light-scattering properties.
Unfortunately, the method that creates what the researchers call "astonishing" images … Read more
When J. Marc Simard, a neurosurgery professor at the University of Maryland, saw a TV show a few years back with plastic surgeons using sterile maggots to remove dead tissue from a patient, the proverbial light bulb went off.
"Here you had a natural system that recognized bad from good and good from bad," Simard said last week in a press release from the National Institute of Biomedical Imaging and Bioengineering. "The maggots removed all the bad stuff and left all the good stuff alone, and they're really small. I thought, if you had something equivalent … Read more
Those breast exams women are supposed to regularly give themselves in the shower are no joke. With one in eight women facing breast cancer diagnosis at some point, early detection -- most often in the form of simple self exams -- can be a literal lifesaver.
So First Warning Systems, a company founded in Reno, Nev., in 2008, is designing and testing a smart bra that is essentially a continuous exam, and that thus far appears to be more accurate that the somewhat controversial mammography.
The Breast Tissue Screening Bra incorporates a sensor that measures tiny temperature changes that occur as blood vessels grow and feed tumors, which the company says grow for an average of 12 years (to 4 centimeters in diameter) before being surgically removed.
That sensor, meanwhile, communicates with pattern recognition software to help spot possible tumors long before a hand or mammogram likely would.… Read more
When the RF exposure limit of 1.6 watts per kilogram specific absorption rate (SAR) was established in 1996, phones were bigger, bulkier, and carried in holsters outside of clothes and not in pockets, said Marcia Crosse, director of health care at the U.S. Government Accountability Office (GAO) and co-author of the report. … Read more
People are willing to tweet just about anything -- in 2009, Erykah Badu famously tweeted away during labor, and just this past month, the National Zoo live-tweeted the artificial insemination of a giant panda.
So it should come as no surprise that earlier today folks at the Houston-based Memorial Hermann Hospital live-tweeted via the handle @houstonhospital the "rabid play-by-play" of the removal of a tumor from a 21-year-old woman's brain.
The procedure spanned several hours and resulted in dozens of tweets, video uploads on YouTube, and a dizzying array of graphic photos via Twitter and Pinterest.
Dr. … Read more
Are people endangering with their lives, risking cancer, brain tumors, and infertility by talking on their cell phones? A new review by the U.K.'s Health Protection Agency (HPA) says no.
Scientists conducting the review looked at hundreds of studies and assessed all major research into "low-level radio frequency," which they said comes not only from mobile phones but also TV and radio broadcasting, Wi-Fi, and other technologies, and concluded that everyone in the U.K. is exposed to "universal and continuous" radio frequency, according to the BBC.
Despite this constant exposure, the scientists said … Read more
Today, pathologists and researchers must cut super-thin slices of tissue samples to view them on a microscope -- a labor-intensive process that renders 3D images created from hundreds of 2D sections prohibitively expensive.
Not to mention tedious to construct. Imagine if a single scene in Halo was presented as a series of 2D images one must perfectly align before getting the lay of, say, a single battleground.
Now, computer scientists and medical researchers at the University of Leeds in the United Kingdom say they've devised a novel workaround in the form of a digital scanning system that produces 3D views of tissue samples … Read more
An atom-based magnetic sensor the size of a sugar cube has successfully measured human brain activity, a milestone that could ultimately lead to advancing our understanding of a wide range of neurological conditions and diseases, according to researchers at the National Institute of Standards and Technology (NIST).
We first reported on an earlier iteration of the sensor, which has been in development since 2004, back when the team was first able to use the sensor to track a human heartbeat in 2010.
When it comes to cancer cells, a particularly confounding breed called cancer stem cells have proven difficult to kill. Because they divide so slowly, chemo drugs do them little harm, and they appear resistant to heat therapies that are generally good at killing most cells. Some cancer drugs even appear to promote the growth of cancer stem cells.
Now, three years after they found that the heat from 30-second laser blasts can kill kidney cancer stem cells, researchers at Wake Forest Baptist Medical Center say the same treatment works to kill breast cancer stem cells as well.
Torti's team … Read more