Tag: "bad" at biology news

Doctors link common chemotherapy drug to jawbone necrosis

...ne and make bone stronger, and osteoclasts -- "the bad guys" -- take calcium away, diminishing the internal strength of the bone. Bone remodeling is like a necessary game of tug-of-war between the goods guys and the bad. Bone mass and mineral content constantly adjust throughout the life cycle to support...

Your brain and you: Forecasting the ethical challenges ahead for neuroscience and society

... the class on Ritalin? Then your kid looks like a bad student in comparison unless he also takes medication, even if he does not have attentional problems" Perhaps the trickiest ethical issues surrounding neuroscience are those that confront some of our best-held assumptions of our own nature. "Neuros...

Violent ocean motion no magic potion for reefs

...ors have reported for years that overgrowth was so bad at some previously popular dive reefs that these locations were no longer worth visiting. Lapointe believes based on past research that the spread of C. brachypus and other macroalgae species, in Florida and elsewhere, is largely driven by nutrient p...

Immune system contributes to evolution of a new fluorescent protein

...ntroducing one mistake, and giving it to a million bad typists to see whether any of them could accidentally fix it. They could eventually fix it, but what we were trying to do was take, say, one Shakespearean play and see if we could mutate it into a whole different story. It was unknown whether we coul...

Study pinpoints protein's role in heart failure prevention

...d arrhythmias, or abnormal heart rhythms. "It's as bad to have cardiac hypertrophy as it is to have had a heart attack," said Patterson."Unfortunately, we have no specific therapies aimed at this condition. But our findings suggest that new drugs might be developed to reverse hypertrophy by targeting the...

Study in Royal Society journal on managing GM crops for environmental benefit

...of dominants, is widely assumed to be a 'best of a bad job' strategy. Consequently helpers should reduce cooperative behaviour and choose to disperse and breed independently in the presence of vacant breeding sites. We found that helpers in the cooperatively breeding cichlid Neolamprologus pulcher reduce...

Hypertension risk in African-Americans linked to genetics, Stanford study finds

... risk. Does it simply enhance problems caused by a bad diet, or would the gene alone cause hypertension even in a person who exercises regularly? Even with these unresolved questions, Risch said the study is a first step towards an answer to why African-Americans are more prone to high blood pressure. Hu...

A bug's life: aging and death in E. coli

...stly or is mechanistically impossible. This may be bad news for people who had hoped that advances in science might eventually lead to human immortality. Nevertheless, E. coli should now provide an excellent genetic platform for the study of the fundamental mechanisms of cellular aging and so could pro...

Melatonin shrinks bird gonads. What does the popular supplement do in humans?

...ey noted that melatonin could have good as well as bad effects, but that the current lack of knowledge of the hormone's function in the human brain is troubling. "It really amazes me that melatonin is available in any pharmacy," Bentley said. "It is a powerful hormone, and yet people don't realize that i...

JCI Table of Contents, March 1, 2005

...papbyrecent.shtml Removing IRS: good for taxes, bad for diabetes Insulin resistance in the liver contributes to the development of type 2 diabetes, and diabetics have reduced hepatic levels of insulin receptor substrate proteins IRS-1 and IRS-2. Whether decreased IRS proteins simply correlate with or...

Open microfluidic and nanofluidic systems

... over water, for instance, a human-like robot is a bad idea while a spider-like robot is a much better choice....

JCI table of contents March 1, 2005

...ent.shtml PHYSIOLOGY: RSK2 is bad to the bone Proper bone homeostasis relies on a delicate balance between bone deposition by osteoblasts and resorption by osteoclasts. The transcription factor c-Fos modulates both of these cell types, and, when overexpressed, causes a bon...

Foiling fugitive fish

...here are indications that that might not be such a bad idea." Atlantic and Pacific salmon do not interbreed successfully. If escapees find themselves on the opposite coast, this substantially reduces the likelihood that they will ecologically overwhelm local salmon populations. With the rapid growth of o...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

CHAMPAIGN, Ill. -- We have much to learn from bad bugs, according to Gilbert Waldbauer, whose book "...st colleagues to illustrate what we can learn from bad bugs. Many of the pests he describes are found in Illinois, including the corn rootworm. Other regio...

New drugs for bad bugs

... alarm: There simply aren't enough drugs to combat bad bugs. Bacteria are increasingly adept at outwitting the traditional antibiotic arsenal. Yet designing and testing new antibiotics can be a maddeningly slow and costly process -- if pharmaceutical companies even bother, says Hartmut Derendorf, chairm...

Survivors to revisit the polio scare

...d mass immunization for several weeks when several bad vaccine batches were found to have caused more than 200 cases of polio. Because of the delay, Boston suffered the worst polio epidemic in its history that summer one of the hottest on record -- despite the crucial virus research done there. The Apr...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

...destruction of DNA." However, too much NO can be a bad thing. Sustained overproduction of NO can cause septic shock (sepsis). "In sepsis, which is a systemic bacterial infection, the body expresses iNOS which generates relatively high concentrations of NO," says Dr. Hobbs. "This aids host defense by kill...

Highlights of chemical society national meeting in San Diego, March 13-17

... study also showed that apple extracts prevent the bad (LDL) cholesterol from turning into oxidized LDL, a potentially more deadly form of bad cholesterol that is associated with an increased risk of heart attack and stroke. Another study by t...

Researchers at U. Va. discover how body regulates most abundant type of white blood cell

...- a lack of neutrophil production that can lead to bad infections in cancer patients who undergo chemotherapy, radiation or a bone marrow transplant. The research could also be useful in treating inflammatory and autoimmune diseases, like rheumatoid arthritis or lupus, where neutrophil production may be ...

Europe faces brain drain and declining patient care unless cancer research funding is doubled

...n cancer research and its competitiveness. This is bad news for Europe, but more importantly, it is bad news for cancer patients."Mrs Kathleen Vandendael, Executive Director of the Federation of European ...

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(Date:4/15/2014)... , ITHACA, N.Y. If an insect drew a line ... be a tangled mess. But there,s method to that mess, ... and physics, who tries to find simple physical explanations for ... It turns out the tiger beetle, known for its speed ...
(Date:4/15/2014)... , Case Western Reserve University dental researchers have found ... cells from the mouth to study how the mouth,s ... isolating some specialized immune cells (white blood cells known ... the mouthor reject foreign tissues, such as in failed ...
(Date:4/15/2014)... in nanoparticle form could help reduce side effects by targeting ... have developed nanoparticles that deliver one or two chemotherapy drugs, ... can carry any more than that in a precise ratio. ... build such nanoparticles, making it much easier to include three ...
Breaking Biology News(10 mins):Photo: Tiger beetle's chase highlights mechanical law 2New method isolates immune cells for researchers to study how they ward off oral diseases 2Targeting cancer with a triple threat 2Targeting cancer with a triple threat 3
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