Walking away from back pain
Lower back pain is a common complaint, and treatment often requires many hours of physical therapy over multiple weekly clinic visits
Lower back pain is a common complaint, and treatment often requires many hours of physical therapy over multiple weekly clinic visits
Johns Hopkins researchers have developed a new way of looking at standard MRI scans that more accurately measures damage to the blood-brain barrier in stroke victims, a process they hope will lead to safer, more individualised treatment of blood clots in the brain and better outcomes.
The blood-brain barrier is a unique shielding of blood vessels that limits the passage of molecules from the blood stream into the brain. Without it, the brain is open to infection, inflammation and haemorrhage. Ischemic stroke patients are at risk of bleeding into the brain when there is damage to the barrier. By more accurately identifying areas of damage, the researchers say they hope to use their new tool to predict and reduce the risk of complications from clot-dissolving drugs used to treat this kind of stroke.
‘A better characterisation of blood-brain barrier damage opens the door to new approaches to treating stroke patients,’ says study leader Richard Leigh, M.D., an assistant professor of neurology and radiology at the Johns Hopkins University School of Medicine. ‘We want to help patients, but we need to make sure our treatments don
Patients with type 2 diabetes who consume a diet identical to the strict regimen followed after bariatric surgery are just as likely to see a reduction in blood glucose levels as those who undergo surgery, researchers at UT Southwestern Medical Center have found.
‘For years, the question has been whether it is the bariatric surgery or a change in diet that causes the diabetes to improve so rapidly after surgery,’ said Dr. Ildiko Lingvay, assistant professor of internal medicine and first author of the study.’We found that the reduction of patients
Digital cameras, medical scanners, and other imaging technologies have advanced considerably during the past decade. Continuing this pace of innovation, an Austrian research team has developed an entirely new way of capturing images based on a flat, flexible, transparent, and potentially disposable polymer sheet
The new imager, which resembles a flexible plastic film, uses fluorescent particles to capture incoming light and channel a portion of it to an array of sensors framing the sheet. With no electronics or internal components, the imager’s elegant design makes it ideal for a new breed of imaging technologies, including user interface devices that can respond not to a touch, but merely to a simple gesture.
‘To our knowledge, we are the first to present an image sensor that is fully transparent
A University of British Columbia researcher has helped create a gel
In 2012, more than 3 million people had stents inserted in their coronary arteries. These tiny mesh tubes prop open blood vessels healing from procedures like a balloon angioplasty, which widens arteries blocked by clots or plaque deposits. After about six months, most damaged arteries are healed and stay open on their own. The stent, however, is there for a lifetime.
Most of the time, that
Location, location, location. A new Johns Hopkins Children
Caesarean section increases the risk of persistent pelvic girdle pain after delivery compared with vaginal delivery, according to a new study from the Norwegian Institute of Public Health.
Caesarean section rates are increasing worldwide, and this trend has partly been explained by women
The scents which permeate our health spas from aromatic essential oils may provide more benefits than just a sense of rest and well-being. For according to a new study the essential oils which form the basis of aromatherapy for stress relief are also reported to have a beneficial effect on heart rate and blood pressure following short-term exposure – and may therefore reduce the risk of cardiovascular disease. However, on the downside, those beneficial effects were reversed when exposure to essential oils lasted more than an hour.
The study was performed in men and women working in various spa centres in the city of Taipei in Taiwan, where the traditions of ancient Chinese civilisations are maintained in religious ceremonies and healing therapies. Aromatherapy, as practised today, is still presented as natural healing with essential oils extracted by infusion from aromatic plants.
One hundred young, healthy non-smoking spa workers taking part in the study visited the study centre on three occasions (about once a week), when each volunteer was exposed to vapours of essential oils released from an ultrasonic ioniser for two hours. During this time and on each visit three repeated measurements
It sounds futuristic, but today Carnegie Mellon University researchers are developing edible electronic devices that can be implanted in the body to improve patient care.
‘We are creating electronically active medical devices that can be implanted in the body,’ said Christopher Bettinger, an assistant professor in the departments of Materials Science and Engineering and Biomedical Engineering at CMU. ‘The idea is for a patient to consume a pill that encapsulates the device.’
Bettinger, along with Jay Whitacre, a professor of materials science and engineering, is creating edible power sources for medical devices that can be taken orally using materials found in the daily diet.
‘Our design involves flexible polymer electrodes and a sodium ion electrochemical cell, which allows us to fold the mechanism into an edible pill that encapsulates the device,’ Bettinger said.
CMU researchers report that the edible device could be programmed and deployed in the gastrointestinal tract or the small intestine depending upon packaging. Once the battery packaging is in place, Bettinger’s team would activate the battery.
Bettinger reports that the battery could power biosensors to measure biomarkers or monitor gastric problems. The battery also could be used to stimulate damaged tissue or help in targeted drug delivery for certain types of cancer.
‘There’s so much out there we can do with this novel approach to medical devices,’ said Bettinger, a recipient of the National Academy of Sciences Award for Initiatives in Research for his innovative work on advanced materials for next-generation implanted medical devices.
Bettinger has worked for more than a decade at the interface of materials science and biomedical engineering. Some of his innovative technologies include new synthetic materials that mimic the natural properties of soft tissue and biodegradable electronics that could usher in a new era of electronically active implants.
Carnegie Mellon University
April 2024
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