X-ray Microscope Designed To Study Jet Engine Components Now Probes Tooth Dentin
...e tooth and the plastic-based fillings now used to repair mostcavities. Metal alloys create a more durable restoration than newer plastic-based andceramic materials used for filling tooth cavities, but the ability to match thecolor of these materials to the natural color of a tooth makes the newermate...Scientists Create Extremely Sensitive Test For Detecting Radiation Damage
...ors soon may be able to boostthe body's ability to repair genetic injuries. "Potentially, this assay...h the sensitivity of their new method and that DNA repair can be accelerated.They subjected cultured cells to 0.25 Gray - a unit of radiation exposure - fourh...Drug's Effect On Chromosomes May Explain Second Cancers
... the enzyme then instantly re-joinsthe cut ends to repair the break. Etoposide prevents the enzyme from completing its repair step. “Thedrug actually subverts the enzyme into a DNA damaging agent,” saidMuller. The r...Setbacks To Health Progress In Central America
...s of populationmentioned." "We are engaged in the repair of the most critical hospital services of certaincomplexity, such as radiology, laboratory, and surgery. In Honduras and ElSalvador we also have a very good experience in mobile surgery," she said. "There are chronic patients, people with AIDS, elder...Researchers Splice Severed Spinal Cords
...together." Borgens says the technique also can repair crushed nerve cells that developholes in their membranes. "In most spinal cord injuries in animals and in people, the spinal cord isnot completely severed, as we have done in these first experiments," he says."The cord is more likely to be crushe...New drugs, diagnostic tests, software needed to prepare US cities for chemical, biological attacks
...program should bedeveloped to locate substances to repair or limit the damage caused by vesicantssuch as mustard gas, which burn and blister body tissues through contact withthe skin and lungs. Other recommendations include: Improvements in the laboratory and epidemiology capabilities of the Centersfor Di......vessels and instruments is critical toreaching the repair site without damaging vessels along the way. "Even with the most advanced imaging equipment available at present, weweren't seeing features we knew existed," Rudin said. "We expect this detectorprototype to help us locate thestent optimally ...Thymus May Hold Clue To Rebuilding Immune System After HIV
...ction also shows how the adult immune system might repair itself afterbeing damaged by human immunodeficiency virus (HIV), UT Southwestern MedicalCenter at Dallas scientists reported in today's issue of Nature. The research shows that the thymus makes new T-cells throughout adulthood andthat HIV may block ...Radically New Type Of Surgery Tested On First Patient
...nto the brains ofpatients with movement disorders, repair of aneurysms and other blood vesselabnormalities, ...ble to guide instruments through a blood vessel to repair an aneurysmor venous malformation. The MSS also might be able to disseminate drugs directlyinto tumo...Low-Tech Treatment Proves A Life-Saver In Research Breakthrough
...itute, hasfocused on mechanisms of lung injury and repair for more than 20 years. Hedirected the ventilator treatment for ARDS patients at UCSF Medical Center,part of UCSF Stanford Health Care. ARDS patients also participated in the studyat UCSF-affiliated San Francisco General Hospital Medical Center (SFG...... no technique in humans or other mammals which can repair severednerves in the brain or spinal cord or speed up the repair of severed peripheralnerves. "The technique opens up a completely novel approach to restorin...Nonintrusive Imaging Technique Useful For Identifying Language Regions In Kids' Brains
... prior toneurosurgery to remove brain tumors or to repair damaged blood vessels in thebrain. In the Wada test, doctors inject a drug called amobarbital (Amytal) into anartery in the patient's neck while they are awake, which temporarily numbs halftheir brain. If the person loses speech as a result, the neur...Early Heart Repair For Marfan Syndrome Patients Critical To Survival
...dicine. Theyshowed that death rates from surgical repair of the aneurysm were only 1.5percent when done ear... containing a mechanical valve. Surgery to repair an aortic aneurysm is no longer a high-risk procedurewhen done early, says lead author Vincent L. Go......nalingpathways begins. These pathways can lead to repair of the damage, programmedcell death (apoptosis), or cell death accompanied by inflammation (necrosis). Many major diseases involve these signaling pathways either through notenough activation of the pathways, as in cancer, or too much activat...Jefferson Scientists Show Tumor Characteristics May Help Explain Tumor Biology And Prognosis
...h repair, whichis vital to DNA replication. Faulty repair plays an important role in coloncancer development...that "MSI is valuable as a pretest for DNAmismatch repair inactivation and possibly hereditary colon cancer," explains Dr.Boman, who is also director of the D...... currently being used in various medical centersto repair aortic dissections. However, these two studies are significantbecause they are the first to include a sizeable group of patients and to beconducted in a carefully-controlled, scientific manner with consistentcollection of data and reporting of resul...Controversy Over The Effects Of Passive Smoking
...ssels are damaged, platelets are partof the body's repair mechanisms. But even relatively small increases in plateletaggregation have been implicated in a substantially higher risk of heartdisease. Some research also suggests that passive smoking may boost plateletaggregation enough to create the extra hear...Advance reported in search for skin cancer treatment
...l structure of anenzyme that many organisms use to repair DNA damaged by ultraviolet light. Their findings a...duce an artificial enzyme for human use that could repair DNA damaged byultraviolet light in humans. Such damage leads to certain types of skincancer,...Immune system rebounds for some children with AIDS, finds UF study
... have shown that it does not typicallylead to much repair of immune system damage. "With adults, the hope is that the medications will stave off furtherdestruction of the immune system," Sleasman said. "But we're seeing adifferent potential in young children. In children under 5, the thymusgland, which is w......l, surgeons can assess the damage and determine if repair is an option," saidDiSesa. Cardiologists can actually cut the digital heart displayed on themonitor and get a view of the pumping organ from both the top and bottom. Thisenables surgeons to perform a mock surgery on the heart before the p...