Medopedia
"As a rule, we disbelieve all the facts and theories for which we have no use" - W. James
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- Continuous Asthma Monitoring System Helps Pinpoint Cause of Asthma Attacks
A personal sensor system which continuously monitors the environment air around persons prone to asthma attacks has been developed at Georgia Tech Research Institute. Designed to be worn in the pockets of a vest, the system should help researchers understand the causes of asthma attacks. The system measures airborne exposure to formaldehyde, carbon dioxide, ozone, nitrogen dioxide, temperature, relative humidity and total volatile organic compounds (VOCs). VOCs are emitted as gases from products such as paints, cleaning supplies, pesticide formulations, building materials and furnishings, office equipment and craft materials.
Sat, 12 Apr 2008 11:05:48 -0500 - 5 Questions to Ask When Visiting an Eye Doctor
When visiting the eye doctor, it is important to remain well informed about your eyesight and the eye exam procedures. The better informed you are about the eye exam, the more capable you will be to make educated decisions and to keep yourself on the right road to good eye health. A part of being informed means asking the eye doctor specific questions and understanding the meaning of their answers.1. What is my Visual Acuity?
Wed, 09 Apr 2008 16:20:48 -0500 - Night Sweats and Caffeine
Night sweats, also known as sleep hyperhidrosis, may be a symptom of some underlying cause. Some possible causes include: diabetes insipidus, hyperthyroidism, cerebral palsy, hypothalamic lesions, head injuries, epilepsy, sleep apnea, sudden onset migraines, hepatitis-C, AIDS-related lymphoma, tuberculosis, anemia, any illness with fever, spinal cord infarction, familial dysautomia, and cerebral stroke. Now that I’ve scared you, don’t panic. Although night sweats can be a symptom of many serious conditions, they can also be much simpler to get rid of sometimes.
Sun, 30 Mar 2008 09:56:19 -0500 - Perfusion MRI for Brain Cancer Detection
How do you tell when a low-grade glioma will turn into an aggressive high-grade glioma, before it’s too late? It just so happens that a specialized kind of magnetic resonance imaging (MRI) can predict cancerous transformation of brain tumors up to a year prior to when the malignancy would be visible on regular contrast-enhanced MRI, according to a new study[1].
Wed, 26 Mar 2008 17:28:10 -0500 - Aging for Dignity’s 5 Wishes a Better Living Will
As you get older, you start to face the fact that sooner or later, you will die. While you are still able-bodied and of sound mind, you should decide what life support measures you want in addition to creating a will and planning your funeral. Who will see to your wishes if you cannot communicate them? You may live to be 100 but it always pays to be prepared.
Sun, 23 Mar 2008 12:14:08 -0500 - Vertebroplasty Technique for Osteoporosis Spinal Fractures
The use of vertebroplasty as a treatment for vertebral compression fractures helps patients with both pain relief and everyday mobility, according to a new five-year follow-up study of over 800 osteoporosis patients. Results were detailed at the Society of Interventional Radiology's 33rd Annual Scientific Meeting.
Wed, 19 Mar 2008 18:03:54 -0500 - Can Sulforaphane in Broccoli Help Aging Immune Systems?
Researchers at UCLA have found that sulforaphane, a chemical in broccoli and other cruciferous vegetables, switches on a set of antioxidant genes and enzymes in specific immune cells. The cells then fight the harmful effects of free radical molecules that can damage cells and lead to disease. The discovery could hold a key to renovating the body's immunity, which declines as we age.The study[1], published in the Journal of Allergy and Clinical Immunology online 06 March 2008, was led by Dr. Andre Nel, chief of nanomedicine at the David Geffen School of Medicine at UCLA.
Wed, 12 Mar 2008 16:49:03 -0500 - Electron Cryomicroscopy Takes 3D Portrait of Virus
Researchers at Purdue University have used the emerging technique of single-particle electron cryomicroscopy to get images of a virus in twice the detail than had previously been possible. The image of the bacteriophage Epsilon15 is at a resolution of 4.5 angstroms. Approximately 1 million angstroms would equal the diameter of a human hair. In other words, they can take pictures of objects 4 ½ millionths the width of a human hair. (Hi-Res Full screen image)
Wed, 05 Mar 2008 16:48:41 -0600 - Do Side Effects of Kava Kava Include Liver Damage?
More evidence has surfaced about the adverse affect kava could have on the liver. Kava is an herb which has been used in ceremonies and for recreational and social use in the South Pacific for around 3000 years, akin to the status of alcohol, tea or coffee in other societies today. Researchers from the University of Sydney have published a new study [1] investigating effects of kavain, one of the main active ingredients of kava, on the biological structure of the liver. In the 1980s additional medicinal uses for kava began to become known, and it was marketed in herbal form as a natural way to treat conditions such as anxiety, insomnia, tension and restlessness, particularly in Europe and North America.
Safety
Sat, 23 Feb 2008 15:54:30 -0600 - Lensless Xray Camera for Nanoscale Imaging
A new, lensless X-ray technique which can capture images of ultra-small structures buried in nanoparticles and nanomaterials, as well as features within biological cells, like cellular mitochondria, has been developed at the Argonne National Laboratory. Such a technique could be important to help in the understanding of how materials act, and could have practical applications in biology and biomedicine for the understanding of disease, healing after injury, cancer and cell death.
Wed, 20 Feb 2008 18:08:26 -0600
