Tag: "substances" at medical news

Excess body weight linked to formation of uric acid kidney stones, UT Southwestern researchers find

...s are solid deposits that form in the kidneys from substances excreted in urine. When waste materials in urine do not dissolve completely, microscopic particles begin to form and over time grow into kidney stones. These stones may remain in the kidney or can break loose and travel down the urinary tract. Small ...

Study: Carbon dioxide may find new use in producing medical implants

...netrate materials like a gas but can dissolve some substances -- such as grease -- and other chemicals like a liquid. "Though supercritical CO2 has long been developed as a means of extracting molecules, this work shows that it can be used in the opposite way," said David Tomasko, associate professor of chemic...

Almost half of rural North Carolina Adults report using 'home remedies'

..., herbs, teas, traditional remedies involving such substances as baking soda or turpentine, vitamins and minerals, food, over-the-counter products, and products bought from health-food stores. From the surveys, researchers estimated that 45.7 percent of the rural adult population use home remedies. They also fo...

National Academies advisory: Meeting on therapeutic vaccines

...d mission of vaccines, seeking to develop not only substances that can prevent illness but also vaccines to treat those already suffering from AIDS, hepatitis, and other diseases. This meeting, part of the National Academy of Sciences' Arthur M. Sackler colloquium series, will bring together medical researcher...

Embryonic stem cells induced to develop into bone marrow and blood cells

...onse, while tolerant to self, responded to foreign substances normally, indicating that recipients are able to fight off infection. Although the use of human embryonic stem cell lines is controversial, it has many advantages over the use of donor bone marrow or blood cells, which are highly variable, cannot be ...

PNNL develops mercury-absorbing pollution solution

...l material that can remove mercury and other toxic substances from coal-burning power-plant waste water. Mercury pollution is widely recognized as a growing risk to both the environment and public health. It is estimated that coal-burning power plants contribute about 48 tons of mercury to the United States e...

Institute of Medicine Advisory: April 1 public briefing on safety of dietary supplements

...lts of tests in animals, or information on similar substances -- can be used in a science-based approach to determine whether a supplement poses a significant risk to human health." The process provides a way to identify supplement ingredients that may pose risks, prioritize them based on their level of pot...

SOS Rx: National medication safety group organized

...sumers will be informed that other medications and substances they may be taking -- prescription drugs, over-the-counter medications, dietary supplements and herbals, as well as food -- could dangerously interact with their prescribed medication. Healthcare System Advocacy: SOS Rx is currently exploring the...

Sleep problems in early childhood may predict substance use during adolescence

...of the children who had sleep problems began using substances at an early age, such as 14 years. It seems clear that children's and adolescents' sleep problems may potentially be a risk marker for later substance-use problems. Parents should pay attention to their children's complaints about insomnia and over...

Jefferson scientists find how HIV causes dementia

...lia," he explains. These cells produce an array of substances called cytokines and chemokines, which kill neuron...or whether the cell death was indeed caused by the substances from infected cells. He and his co-workers had previously published work suggesting that certain HIV...

Study finds certain compounds in beer, wine effective in slowing breast cancer cell growth

... (EGCG), xanthohumol (XN) and resveratrol (RES) -- substances present in significant concentrations in tea, beer and red wine, respectively, on the growth of a human breast cancer cell line, MCF-7. The authors of the study entitled "Phenolic Compounds in the Control of Breast Cancer Cell Growth" are S. Pinheiro...

Kids' year-round asthma symptoms triggered by parent's second-hand smoke

...and their parents on avoiding asthma "triggers" -- substances in the air that can bring on an asthma attack or lesser symptoms. Triggers include dust, pollen, pet dander, stress, cockroach droppings, mold, air pollution, exercise, cold air -- and second-hand smoke. Some triggers, such as pollen, occur only duri...

UNC study may help predict premature infants at risk of total blindness

...he retina. The blood vessels are immature and leak substances that cause scarring and later retinal detachment."... a process thought to destroy tissue that produces substances causing unwanted angiogenesis into the vitreous. "These treatments help reduce the risk of retinal d...

Novel findings about neovessel formation

...with diabetic retinopathy. We are now looking for substances that can attenuate these altered structures in tissue factor, says Mattias Belting. He performed his studies during his stay at the prestigious Scripps Research Institute in San Diego, and is currently heading a research team at Lund University. Ti...

Hebrew University one of 25 institutions involved in new European Vascular Genomics Network

... tissue, blood cells, cholesterol, and other fatty substances into the artery wall; the buildup of plaque narrows the arteries and slows the flow of blood); 3. Therapeutic angiogenesis that opens avenues for novel treatment of heart disease meant to improve cardiac oxygenation and reduce heart failure (angiogen...

New molecule may be basis for drugs that battle overeating and drug dependency

...on is connected with obesity and the dependence on substances such as marijuana," said Piomelli, who also studies how anandamide and other similar substances are involved in feeding and obesity. "By helping the body's own system give the brain a boost, compo...

Oxygen therapy may improve vision worsened by diabetes

...ascular endothelial growth factor (VEGF) and other substances that cause retinal blood vessels to become leaky and ultimately stimulate the growth of new blood vessels. The leakage of fluid into the macula causes it to become thickened and results in vision loss. Supplemental oxygen reduces production of VEGF ...

New technology blocks gene to increase immune response against deadly brain tumor cells

...en-presenting cells those that identify "foreign" substances for destruction. Because cancer cells often are not recognized by dendritic cells as antigens, the neurosurgeons and other scientists at the Institute have developed and studied a vaccine in the treatment of highly aggressive brain tumors called glio...

Flavonoid-rich dark chocolate boosts blood vessel function, study suggests

...els of epicatechin triggered the release of active substances that vasodilate, or increase, blood flow in the artery. Better blood flow is good for your heart." The study appears in the June issue of the Journal of the American College of Nutrition. Previous clinical studies have shown the beneficial effects o...

Study finds Velcade major improvement over standard therapy for relapsed multiple myeloma patients

...mbridge, Mass., Velcade is the first of a class of substances known as proteasome inhibitors to reach the clinical trial stage. Preclinical studies by researchers at Dana-Farber demonstrated that the drug which acts on intracellular structures called proteasomes, which control the degradation of key proteins ...

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