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Tag: "dangerous" at biology news

In mice, drug protects against diabetes and atherosclerosis

..."foam cells" that adhere to artery walls, creating dangerous plaques that eventually may rupture and trigger a heart attack. In mice lacking these lipid chaperones, there was no sign of heart disease. Next, the researchers turned to humans. While the scientists could not knock out the aP2 gene in humans, th...

Runners -- Let thirst be your guide

... anything puts some people at risk for potentially dangerous levels of hyponatremia.” The disorder occurs when endurance exercisers drink more fluid than their kidneys can excrete. The hormone that determines how much fluid a kidney can excrete is arginine vasopressin (AVP), which is released from the pitui...

Toxoplasmosis infection trick revealed by scientists

...hrough contact with cat faeces. It is particularly dangerous for pregnant women, whose foetuses can be infected via the placenta, and those with a weakened immune system, such as people infected with HIV. In severe cases, toxoplasmosis can cause damage to the brain and eyes, and even death Now researchers fr...

Decoding protein structures helps illuminate cause of diabetes

...ready have a good idea of the healthy "before" and dangerous "after" hIAPP structures, the steps in between remain somewhat of a mystery and may hold clues to what drives the transition, says UW-Madison chemistry professor Martin Zanni, who led the new study. In trying to understand diabetes, "people have b...

Scientists see DNA get 'sunburned' for the first time

... long-lived excited states were thought to be more dangerous than short-lived ones. But this study shows that the most common UV damage is caused by a very short-lived excited state. "The speed of this reaction has important consequences for understanding how DNA is damaged by UV light," said Kohler. "In th...

Jefferson scientists find rabies-based vaccine could be effective against HIV

...from disease, even after being "challenged" with a dangerous animal-human virus. Two control animals developed an AIDS-like disease. Matthias Schnell, Ph.D., professor of microbiology and immunology at Jefferson Medical College of Thomas Jefferson University, and his co-workers tested the effects of insert...

Gut research yields new anti-cancer approach

...ence of normal survival signals makes cancer cells dangerous in the body, but useful as cell lines for study. While comparing PPARgamma activators and inhibitors, Schaefer noted with frustration that her cancer cells were dying before she could complete her experiments. Retracing her steps, she found that ...

Study finds surfing safer than soccer

While public perception may frame surfing as a dangerous sport, new research begs to differ. In the first study of its kind, researchers have computed the rate of injury among competitive surfers and found they are less prone to harm than collegiate soccer or basketball players. Led by researchers at Rhode...

Fighting influenza & co. with 40,000 blood samples

...of their lives. 'Normally respiratory diseases are dangerous for children and the over-60s,' the project coordi...ind out which viruses are currently spreading, how dangerous they are and what risk factors make an infection particularly likely,' Oliver Schildgen explains. ...

Hotspots of mercury contamination identified in eastern North America

...ally modified in aquatic food chains, resulting in dangerous levels of methylmercury in some wildlife species. Fish consumption advisories responding to mercury contamination exist in all the states and provinces included in the study, and loons are adversely affected by mercury levels they experience. The h...

When your brain talks, your muscles don't always listen

...ht said, "so their core body temperature can reach dangerous levels." In graduate school, he decided to pursue motor control research, and he's never looked back. "My early interests were based on sport, but my career in this field now allows me to address a much larger population that needs our knowledg...

Anti-wrinkle compound causes pathological reaction in skin cells

...he use of this compound. "We’re not saying DMAE is dangerous to people exposed to it, but our results indicate it’s time to begin serious research to determine whether or not it poses a health risk." DMAE is not a unique case in the world of beauty products, continues the researcher. "Several compounds foun...

Putting an old drug to a new use

...e red blood cells. A lack of the metal can lead to dangerous anemias, but also too much iron can be detrimental as iron promotes the formation of toxic radicals leading to tissue damage. Iron overload is the consequence of one of the most common genetic disorders in Europe, hereditary hemochromatosis, which af...

Scientists find potential 'off-switch' for HIV virus

...s of drugs that can treat some of the world's most dangerous illnesses." Though Weinberger emphasized the significance of the discovery was primarily for fundamental science research, he said that potential applications to HIV might be an improvement over drug cocktails, which are the mixtures of antiviral ...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...the immune system itself actually becomes the most dangerous element of the disease. All too often, a sudden im... to those seen in humans infected by the much more dangerous Lassa virus, which can cause an acute hemorrhagic fever and kills about 5,000 people a year in West ...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...ere’s not enough data as yet to determine the most dangerous types. "A lot is unknown about nanoparticle function, but clearly both size and composition are important," Pacheco said. "Several studies have shown that smaller particles are more likely to enter cells and cause more toxicity." According ...

Sunshine pill for prostate cancer in 2009

...ion that reproduces the healing effect without the dangerous side-effects of a vitamin D overdose. If the on-going phase III trial goes to plan, the new drug should be available in 2009, reports Chemistry & Industry, the magazine of the SCI. 'If the results of the phase III trial are as good as those ...

Small molecule dervived from Rb2/p130 could act as cancer therapeutic

... large quantities and does not require potentially dangerous means of delivery like viruses, as do most gene therapies; therefore Spa310 has a good chance to succeed as an anti-cancer therapy. For these reasons, he believes it may be easier to get approval for clinical trials. "Fifteen years after discover...

Batten down the hatches against HIV

...o smuggle genetic material into cells, but this is dangerous in therapeutic applications because they can trigger allergies. Liposomes, tiny bubbles of fat, are safe but have proven to be ineffective for use in T-cells. Dai and his co-workers have tested a new transport system: carbon nanotubes are known for t...

Lead-'scrubbing' drug may also improve muscle function in lead-exposed children

...xcreted in the urine, essentially cleaning out the dangerous metals. Succimer (Chermet) is an oral chelating drug approved by the Food and Drug Administration to treat children with extremely elevated blood lead levels (44 to 69 micrograms per deciliter). The UC team has found that succimer chelation the...

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