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Tag: "extends" at biology news

Exploring the dark matter of the genome

...d telomeric regions, until later. The present work extends the sequence into those regions." Repeating sequences are the hallmark of heterochromatin, and there are several distinct kinds. Simple, short repeats are called satellite DNAs, which tend to become more abundant near the centromeres, adding up t...

Researchers find link between food odors and lifespan in fruit flies

...erstand the mechanism by which caloric restriction extends longevity." Sometimes ?as in the new discovery ...erstand the mechanism by which caloric restriction extends longevity." Sometimes ?as in the new discovery of a link between food odors and lifespan in fruit...

Exploring the molecular origin of blood clot flexibility

...e bending of their fibers. The current research extends those earlier findings to the molecular level, suggesting a way that individual fibers flex - by the unraveling of the three, tightly twisted rod-like regions within fibrinogen molecules, called alpha-helical coiled-coils. The researchers measured th...

Novel computed imaging technique uses blurry images to enhance view

...used, three-dimensional image." ISAM effectively extends the region of the image that is in focus, using information that was discarded in the past. "We have demonstrated that the discarded information can be computationally reconstructed to quickly create the desired image," Marks said. "We are now appl...

'Hidden-hero' microbes in soil, water may help naturally clean toxic sites

...etween 1951 and 1983 leaches into groundwater that extends in radioactive plumes for miles from the contaminated site. But soon, Florida State University Associate Professor Joel Kostka and his FSU oceanography department team will help clean up the mess. During the course of a forthcoming five-year stu...

Invasive ants territorial when neighbors are not kin

...r in southern California. The largest supercolony extends about 600 miles throughout coastal California and abuts three of the four smaller colonies. At the territory borders, ants from different colonies engage in intense battles that result in the deaths of considerable numbers of workers. Thomas collec...

Vaccination with embryonic stem cells prevents lung cancer in mice

...ine whether the preventative effect of vaccination extends beyond our models of lung cancer (although in our state of Kentucky with its high smoking rates, lung cancer alone would be a big victory). We may also vaccinate ageing rodents, the majority of which develop endocrine tumours in old age. "In term...

Protein splicing upsets the DNA colinearity paradigm

...his study describes a mechanism that significantly extends the number of antigenic peptides that can be produced from a single protein, and therefore widens the applicability of peptide vaccines against cancer and infectious diseases....

Seals protect brain, conserve oxygen by turning off shivering response on icy dives

...r metabolism and lowered oxygen requirements which extends the dive time, Folkow said. Taking the plunge The seal experiment took place in a tank in which the seals took a series of experimental dives into cold water of 2-3° C. The researchers recorded shivering, heart rate, brain temperature and rec...

New study finds similarities between monkey business and human business

... gambles, these results suggest that loss-aversion extends beyond humans, and may be innate rather than learned." ...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...f life's origin, it shows how they overlap, and it extends both of them significantly." The apparently irreconcilable "heterotrophic" and "chemoautotrophic" theories of the origin of life both focus on the processes by which chemical building blocks first appeared for primitive life to assemble into complex...

Surprise finding for stretched DNA

...to its full length, a single molecule of human DNA extends more than three feet, but, when wound up inside the nucleus of a cell, that same molecule measures about one millionth of an inch across. Biologists have long believed that as a molecule of DNA is stretched, its double helix starts to unwind. As muc...

Combined treatment extends life expectancy for lung cancer patients

Combining thermal ablation with radiation therapy extends average life expectancy and decreases recurrences of tumors in patients who have early stages of inoperable lung cancer, according to researchers at Rhode Island Hospital. In a retrospective study looking at patients over seven years, the median su...

Study reveals how cells destroy faulty proteins in cystic fibrosis

...f these components ?the cell's trash collectors -- extends the life of faulty CFTR proteins and thereby enables some of it to assume a functional shape. The trash collectors newly identified by the Cyr group are two different ubiquitin ligases, proteins that specifically recognize misshaped regions of CF...

Neurons grown from embryonic stem cells restore function in paralyzed rats

...tor GDNF into the sciatic nerve (the sciatic nerve extends from the spine down the back of the hind leg). GDNF causes axons to grow toward it. Three months after the transplants, the investigators examined the rats for signs that the stem cell-derived neurons had survived and integrated with the nervous ...

Obese people are more sensitive to pain, suggests study

...cal shock to a patient's sural nerve, a nerve that extends along the ankle and into the calf. This kind of electrical stimulation causes sensations of tingling and mild pain in the lower leg. The researchers determined the body's response to sural nerve stimulation by measuring the reflex of the lower leg m...

Illegal trade is propelling rare turtle toward extinction, new report

...eature prized by collectors, with a long neck that extends far from its body and resembles a snake. The turtle is found only in the wetlands of the island of Roti was first described as a new species in 1994. The report found that poachers are sidestepping regulations and smuggling the turtles to Jakarta...

Report lists top 20 most-vulnerable African carnivores

...s ?such as those in a developing embryo ? where it extends telomeres, the regions of highly repetitive DNA fo...low access to the site on the enzyme that directly extends the telomeres, Cech pointed out, so the anchor site secures the DNA molecule nearby, slightly closer...

Groovy protein essential for promoting cancer development

...s ?such as those in a developing embryo ? where it extends telomeres, the regions of highly repetitive DNA fo...low access to the site on the enzyme that directly extends the telomeres, Cech pointed out, so the anchor site secures the DNA molecule nearby, slightly closer...

Growth factor-promoting angiogenesis expressed in tumor cells and normal neurons

...t that the clinical significance of these findings extends beyond identification of SCF as a rational target for gliomas. "Normal neuronal expression of SCF in response to traumatic brain injury also raises the disturbing possibility that standard invasive procedures such as surgical biopsies or partial tumo...

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