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Tag: "forms" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...ke, and if he or she exhibited any of seven common forms of sleep problems, such as having nightmares, refusing to go to bed or having trouble falling asleep. Surprisingly, babies born to mothers classified as anxious or depressed while pregnant dozed just as long as their unstressed-pregnancy counterpa...

St. Jude study solves mystery of mammalian ears

...s of hearing and what might be going wrong in some forms of deafness,” said Jian Zuo, Ph.D., the paper’s senior author and associate member of the St. Jude Department of Developmental Neurobiology. “There are a variety of causes for hearing loss, including side effects of chemotherapy for cancer. One stren...

Cellular message movement captured on video

...ise, Chien and Hu also showed that paxillin itself forms long, fibrous structures in the cell cytoplasm.When actin is chemically removed, paxillin no longer moves and its fibrous structures disappear. “As least by showing that paxillin and actin filaments move together we have some insight into the poss...

Researchers discover inherited mutation for leukemia

...lymphocytic leukemia (CLL), one of the most common forms of the disease. The study shows that the inherited mutation greatly reduces the gene's protective activity. Furthermore, a second kind of change occurs later that turns the gene off altogether, leading to leukemia. This latter alteration is a chemi...

Blood test may help signal tumor's remission, return in throat cancer patients

...ave broader application in the monitoring of other forms of cancer. Further studies would need to be performed on patients with these types of cancer as well....

Soils offer new hope as carbon sink

... can be reduced because rapidly decomposing carbon forms are being replaced by stable ones in the form of agrichar." Unfortunately, agrichar is not widely available. BEST Energies Australia, a company involved with NSW DPI in the trials, has a pilot plant at Gosford which is producing minimal amounts fo...

Snoring in children might be an allergic type disease

...indings were consistent with the view that snoring forms part of the spectrum of allergic diseases in childhood,” he said. While the study findings are limited to children with rhinitis, Dr Marshall explained the observed associations with risk factors could apply to the general population where previou...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

...e international collaborative research team taught forms of tool use and food extraction techniques to high-ranking individuals in four different captive chimpanzee communities. Researchers then observed as those individuals passed on the techniques to other members of their communities. The researchers in...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

... that, when mutated, causes one of the most common forms of inherited blindness in babies. Scientists at the University of Leeds, working in collaboration with experts from other centres around the world, identified the gene, which is essential to photoreceptors in the eye, the cells that "see" light. Th...

Now, self-healing materials can mimic human skin, healing again and again

..., the coating and substrate are bent until a crack forms in the coating. The crack propagates through the coating until it encounters one of the fluid-filled “capillaries” at the interface of the coating and substrate. Healing agent moves from the capillary into the crack, where it interacts with catalyst ...

Newly discovered antibody may be body's natural defense against Alzheimer's

...n cells, while ignoring the benign single-molecule forms of the same proteins. The existence of such antibo...gnize oligomers of beta amyloid but also unhealthy forms of other proteins that accumulate in a wide variety of diseases, such as Parkinson's, Lewy body deme...

Gene responsible for common hearing loss identified for first time

...utes to the disease. This may be a lead for better forms of treatment in the future; currently the best option is an operation. However, there is often an additional component of hearing loss which can’t be restored by surgery. As the gene involved is a growth factor, and the disease manifests itself by th...

Scientists close in on missing carbon sink

...a result of widespread logging, burning, and other forms of clearing land. The new research indicates, instead, that tropical ecosystems are the net source of only about 100 million tons of carbon, even though tropical deforestation is occurring rapidly. "Our results indicate that intact tropical forest...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...ere may be other extinctions of unique Pleistocene forms yet to be discovered,” she added....

Lessons from the orangutans: Upright walking may have begun in the trees

...lived in woodland environments, while even earlier forms such as Millennium Man ( Orrorin ) appear to have lived in the forest canopy and moved on two legs. "Our findings blur the picture even further," said Robin Crompton of the University of Liverpool in Liverpool, Great Britain, who is one of the stu...

'Personality-gene' makes songbirds curious

...ng instructions for a receptor in the brain, which forms the docking station for the neurotransmitter dopamine. Birds with a specific variant of this dopamine receptor D4 gene show a stronger exploratory behaviour than individuals with other variants (Proceedings of the Royal Society London B, 2 May 2007)....

Scripps research team sheds light on long-sought cold sensation gene

...on as an analgesic, or block it to prevent certain forms of chronic pain associated with cold sensation. "This study represents the first demonstration that a single gene is responsible for most cool temperature sensation," says team leader Ardem Patapoutian, who has joint appointments with the Department...

'Insulator' helps silence genes in dormant herpes virus

... on chromatin, the condensed genetic material that forms chromosomes. By establishing chromatin boundaries, insulators can limit the range of action of other DNA elements that work to activate, or "turn on," the genes. Recent studies on the LAT region of the HSV-1 genome have shown that nearby regions o...

Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness

... Institute researchers have shown that specialized forms of nitric oxide called SNOs may be the key to a problem that has stumped physicians for years -- why specific drugs for such diseases as heart failure or asthma lose their effectiveness over time. Almost half of all drugs on the market today, as w...

First clinical trial of gene therapy for childhood blindness

...lopment." Professor Ali added: "There are many forms of retinal degeneration, meaning the use of gene therapy treatments must be individually developed then tested in a separate clinical trial specifically for that disease. However, the results from this first human trial are likely to provide an impor...

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