Surgically implanted neurostimulators are presently used for many diseases, ranging from movement disorders, like Parkinson’s Disease, to chronic pain. But as current research efforts suggest, their use will potentially expand to mood disorders, like depression, and memory enhancement for Alzheimer’s. Contemporary neurostimulator technology relies on Platinum in its material design, given the element’s excellent conductivity and biocompatibility, and is abundant in the electronics for deep brain...
Middle ear infections are one of the most common reasons for visits to the pediatrician. However, because the middle ear is hidden from view by the ear drum, physicians must diagnose based on symptoms and a limited physical exam — and when patients have ambiguous or borderline symptoms, accurate diagnosis can be challenging. PhotoniCare’s TOMi Scope uses near-infrared light waves to provide 3D views beyond the ear drum into the middle ear, allowing physicians to visualize and better diagnose...
Researchers from the University of North Carolina Lineberger Comprehensive Cancer Center have developed new radioactive tracers to track pharmaceuticals in the body and to image cancer. The findings, reported in journal Science, describe the new chemistry they have developed, along with data that demonstrate that the team was able to radioactively tag compounds that have been very difficult, or impossible, to label to date. This method could help advance medical imaging technology and provide additional...
Researchers from Daegu Gyeongbuk Institute of Science and Technology (DGIST) in South Korea have developed a new microrobot that can precisely deliver therapeutic cells to very specific parts of the brain. Their work, recently published in Science Robotics, demonstrates that neural stem cells can be cultured and differentiated on their robot and that the device can travel from the carotid artery into various parts of the brain. This development may one day provide an approach for treating a number...
Imaging the heart for signs of disease is still quite rudimentary. While CT, ultrasound, and PET (positron-emission tomography) scanners generate impressive looking graphics, they’re a long way from giving doctors a true representation of the anatomy and function of the heart and nearby vasculature. Contrast agents are widely used to allow these modalities to produce better images of the heart, but they’re indiscriminate in what they help to illuminate. Similar to a flood light, these...
People using prosthetic legs have to be constantly vigilant about potential obstacles in their way. That is because if they stumble, there’s a pretty good chance that they’ll suffer a fall. Prosthetic legs, even powered ones, don’t have the capacity to recover from a stumble, as this is a very challenging task for a mechanical device to perform. Researchers at Vanderbilt University have now taken on this challenge and they hope that they will soon be able to provide a new level of safety...
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Astrocytes possess different morphological characteristics depending on the cerebral region in which they are found. However, none of the current astrocytic markers can label all subpopulations successfully. Thus, identifying the appropriate marker for a specific scientific investigation is critical. Here, we compared the distribution and protein expression of three astrocyte markers: NDRG2, GFAP, and S100β, in the cortex, hippocampus, and thalamus. NDRG2- and S100β-positive astrocytes were distributed...
Introduction. Diet and physical activity are widely recognized in maintaining health and preventing diseases. Currently, dietary supplements are also commonly believed to play a role in health promotion. However, a dietary supplement lacks single uniform definition within the scope of legal or nutritional sciences. Data on the usage of dietary supplements in Europe are still limited. The aim of this study was to assess subjective and objective knowledge of the inhabitants of south-eastern Poland...
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