A Surgical Semiconductor Laser With More Precision And Power
...power andperformance." To compensate for this breakdown of semiconductor laser beams -- known as "filamentation" -- Agrawal and Marciantepropose inserting two extra layers of slightly modified semiconducting material on either side of the active layer ofgallium arsenide, where the beam is formed. "It...Common Carbohydrates May Prove To Be Substitute For Dietary Fiber
...testine. Organs where fermentation -- theenzymatic breakdown of foodstuffs by microbes -- occurs actually grew thickerand bigger. Levels of both bifidobacteria and acidity increased. Researchers tested liquid dietary formulas on pigs and got the same resultsas with the rats. By adding fish oil that contains a...National Office Of Drug Safety Is Needed, Experts Say In JAMA
... occurringbecause of inadequate initial testing, a breakdown in post-market surveillance,physician prescribing errors or a lack of patient compliance?" they ask. "The nation needs an office of drug safety with the authority,independence, funds and legal mandate to undertake all four of the major taskst...Metrifonate, A New Alzheimer Drug, Helps Behavior Problems
...linesterase(AChE) inhibitors. These drugs slow the breakdown of a chemical messenger calledacetylcholine, which is in short supply in the Alzheimer brain. Two AChEinhibitors already are on the market for treatment of Alzheimer's: tacrine(Cognex) and donepezil (Aricept). The 24 sites in the metrifonate s...New Treatment Targets Most Malignant Brain Tumors
...he material, alack of antibody specificity and the breakdown of the radioactive substancebefore it can reach the tumor. The 81C6 antibody presents clear advantages, said Bigner, because ittargets a tumor antigen called tenascin that is almost uniquely found in cancersof the brain, skin, lung and breast......eased when cells called osteoclastsfunction in the breakdown and resorption of bone tissue. It is a marker of boneresorption. These investigators wanted to determine whether NTx might act as amarker for bone metastases in advanced prostate cancer. They took sera from 39men with prostate cancer and a positi......tor present in the liver andinvolved in fatty acid breakdown . PPARa acts as a messenger, allowing the bodyto adapt to its nutritional environment (especially ingestion of large amountsof fat). Fibrates, synthetic compounds that bind to this receptor, stimulatePPARa activity and thereby reinforce its lipid-low...Novel Therapy To Treat Lung Cancer Patients Enrolling Patients At UCSF Cancer Center
...er locations where they can grow. In addition, the breakdown of tissuesthemselves trigger the release of more MMPs, which promotes further tumor growthand expansion. Angiogenesis is the development of new blood vessels. As a malignant tumorgrows, it requires the development of blood vessels to supply its nutri...... is the first study that shows there is a chemical breakdown in thestructure of the cement," said Michael Ries, MD, lead investigator of the study,UCSF associate professor of orthopaedic surgery, and orthopaedic surgeon at theUCSF Arthroplasty Center, part of UCSF Stanford Health Care. "The findings canbe use..."Plugs" For Drugs Promise Mightier Medicines
...nsmodified with the "plug" are less susceptible to breakdown by enzymes than theirunmodified counterparts. In an animal study to be published in Diabetes, the researchers, working withgraduate student Eytan Gershonov, demonstrated that their approach works well for insulin, a drug used by diabetics to normaliz...UF Researchers Cite Possible Link Between Autism, Schizophrenia And Diet
...be linked to an individual's inability to properly breakdown a protein found in milk, University of Florida researchers report inthis month's issue of the journal Autism. The digestive problem might actually lead to the disorders' symptoms,whose basis has long been debated, said UF physiologist Dr. J....New Chemicals Could Lead To First Bone Growth Pill
...-20 million Americans, is caused by increased bone breakdown without newbone formation. The result is a loss of bone mass and increased susceptibilitytofractures, most commonly in those age 45 and older. The cost of treatmentsassociatedwith osteoporosis in the U.S. has been estimated at $3.8 billion annually...A Note of Caution: Be Careful When Mixing Grapefruit Juice With Rxs
...tinal enzyme, known asCYP3A4, that would otherwise breakdown drug molecules before they reach theblood stream. These drugs include antihypertensive calcium channel blockers(i.e., felodipine, Plendil and HIV-protease inhibitors (i.e., saquinavir,Invirase). In a study* published in the April 1999 issue of Pharm...Cholesterol Carriers Better Predictors Than Cholesterol For Second Heart Attack
...as associated withheart attack risk. D-dimer is a breakdown product in the blood when clots form. Elevated levels of D-dimer indicate excess clotting or coagulation activity inthe blood. Individuals with the blood protein profile of low apo A-1, high apo B, and highD-dimer levels were eight times more likely ...Immunex Files Supplemental NDA for NOVANTRONE
...s. The symptoms of MS result when inflammation and breakdown occur in myelin, thefatty substance that insulates the nerve fibers of the brain and spinal cord. This substance helps conduct the flow of nerve impulses to and from the brain.In people with MS, the myelin is damaged, causing patches of scar tissue, ...False recall in older adults and Alzheimer's linked to attention, not memory, breakdown
...ith Alzheimer'smight be better conceptualized as a breakdown in attention rather than primarilya breakdown in memory in the classical sense," Balota said. "Our results are quite consistent with recent neurop...Study suggests a drug treatment for abdominal aortic aneurysms
...ce of the heart's pumping."It is believed that the breakdown of elastin and another key protein, collagen,allows an abdominal aortic aneurysm to form and then to grow," Thompson says. He thought doxycycline might be a useful drug because this chemical cousin oftetracycline was known to inhibit MMPs -- it now ...NOVANTRONE application for multiple sclerosis granted priority review by FDA
...e United States. The symptoms of MS result when a breakdown occurs in themyelin sheath, the fatty substance that insulates the nerve fibers of the brainand spinal cord. This demyelination process causes patches of scar tissue, or"sclerosis," which interfere with the nerve's ability to transport messages from...NYU researcher unveils the scientist in painter Chuck Close
...it Chuck Close with discovering thissize-dependent breakdown of our ability to extract shape from shading, wellwithin the bounds of our visual field and acuity." Pelli also noted the distinction between the work of Close and that of otherartists. He said, "There are well known antecedents to block painting: L...... that lowers blood glucose by interfering with the breakdown of carbohydrates in the gut, had not refilled their prescription in the 12 months after first receiving the drug. In the two other main classes of OADs currently used, metformin (which reduces glucose output from the liver) had a discontinuation rate...